US2738823A - Offsetting apparatus - Google Patents

Description

March 2o, 195s A, P. HIGGINS ET AL 2,738,823

OFFSETTING APPARATUS 3 Sheets-Sheet l Filed Sept. 9, 1952 March 20, 1956 A, P. HIGGINS ET AL 2,738,823

OFFSETTING APPARATUS 3 Sheets-Sheet 2 Filed Sept. 9, 1952 ar/and Q. ora'on ByfA/fred /Q H INVENTORS:

iig/'ns A OREY 3 Sheets-Sheet 3 'March 20, 1956 A, P. HIGGINS ETAL OFFSETTING APPARATUS Filed Sept. 9, 1952l INVENToRs.l Q. ordon fm A N. f N E A@ M V United States Patent() OFFSETTIN G APPARATUS Alfred P. Higgins, San Diego, Calif., and Garland R.

Gordon, Fort Worth, Tex., assignors, by mesne assignments, to General Dynamics Corporation, a corporation of Delaware Application September 9, 1952, Serial No. 308,646 14 Claims. (Cl. 153-21) The present invention generally relates to a metal forming apparatus and, in particular, is directed to an improved machine for joggling or offsetting structural shapes such as bars of various cross-sectional configuration.

In the use of structural shapes to reinforce sheet memn bers or skin as is frequently encountered in the manufacture of buses, railroad cars, and aircraft, it is frequently desirable to form lap joints which provide a continuous surface for supporting the sheet to which it is secured. In order to do this, the portion of one of the members forming the lap is oifset or jogged an amount equal to the gauge or thickness of the mating member so that when the joint is formed, the outer supporting surfaces of the structural members are co-planar, thus providing a continuous supporting surface for the contiguous skin.

Joggling of this type is commonly performed with steel dies in brakes or presses since the power requirements for the operation usually preclude the use of manualf tools. Due to the complexity of the structure of aircraft and the like, a wide variety of structural reinforcing shapes of many different gauges are conventionally ernployed. As a result, it is usually necessary to provide ya proportionately high number of joggling dies forming an appreciable portion of the tooling cost. Additionally, the time required for setting up the dies in the presses or brakes is considerable, especially when only relatively short runs are required.

The principal objective of the present invention is to provide a unitary, compact, and highly flexible apparatus for joggling or offsetting, employing relatively inexpensive tools. The apparatus of the present invention fundamentally dilers from conventional practice in utilizing two pairs of jaws conforming to the section to be offset and adapted to be clamped contiguously at the point where the desired oifset is required, having power means for moving the pairs of jaws relative to each other to stretch the work piece in the desired direction to form the joggle. This is in distinction to forming the joggle between hard steel dies as previously described which quite frequently embrittles and cracks the workpiece in the forming area, particularly in the use of 24ST and 75ST aluminum and magnesium.

A further object of the invention is to provide ap-` paratus of the type under consideration wherein the oifsetting of the workpiece is obtained by stretching the material, whether metallic or non-metallic, while supported on either side of the joggle between pairs of relatively inexpensive jaws. Since the jaws of the machine are not subject to high impact or press loads for forming, they may be economically fabricated from castable material, utilizing a section of the desired workpiece as a pattern.

Still a further object of the invention is to provide a joggling machine comprising a iirst stationary structure for supporting a pair of clamping jaws, a secondrelatively movable structure supporting a second pair of clamping jaws and power means for selectively moving ICC the second structure with respect to the rst in a plurality of directions.

A further object of the invention is to provide a machine as described in which the limits and direction of motion of the power actuating means remains the same while the direction of relative motion between the movable and stationary structures can be selectively changed or modified by means of a novel and simple cam mechamsm.

Another objective of the invention is to provide a joggling machine which, while susceptible of motor actuation, can be conveniently operated by simple manual means.

Still another feature and objective of the present invention resides in the provision of a joggling machine of the above general description wherein all of the operating controls and adjustments are located in such a manner as to be easily accessible without the necessity for changing the operators position during the operation of the machine.

Other features and objectives of the present invention will be apparent from the following description in conjunction with the accompanying drawings in which like figures of reference denote like parts throughout the several views.

In the drawings:

Fig. 1 is a perspective side view of the joggling apparatus of the present invention;

Fig. la represents a typical workpiece offset or joggled as contemplated by means of the apparatus of the present invention;

Fig. 2 is a side elevation of the joggling machine with a cover plate removed to illustrate the mechanism for selectively determining the direction of relative motion between the parts thereof;

Fig. 3 is a vertical section on line III- III of Fig. 2.

Fig. 4 is a side elevation of the machine showing thel lever for its operation;

Fig. 5 is a vertical section of a portion of the joggling machine illustrating the drive means for eifecting relative movement of the supporting structures and the novel cam means for selectively determining the direction thereof;

Fig. 5a is a detail of the camming mechanism;

Fig. 6 is a cross-sectional view of a portion of one of the jaw holding clamps;

Fig. 6a is a detail of Fig. 6;

Fig. 7 and Fig. 8 are schematic illustrations showing the directions of movement of the machine;

Fig. 9 is a detailed view of one of the assemblies for supporting the movable structure of the machine.

Fig. l0 is a section on line X--X on Fig. 9.

The joggling machine shown in the attached drawings and hereafter described constitutes a preferred embodi-4 ment ot the invention. It will be apparent that the apparatus may be modied in many detailed respects witht 4out departing from the principles of the invention which joggling members formed of other types of material.

Referring particularly to Fig. l, the juggling apparatus p of the present invention consists essentially of a pedestal 1 adapted for floor or bench mounting, and a relatively movable assembly 2 supported from the pedestal 1 in such a manner that the former may be moved between arsenite.

preselected limits with respect to the pedestal 1 in response to movement of a lever 3. motion between the two elements 1 and 2 is, at all times, accomplished by movement of the lever arm 3 between the upper and lower positions indicated in full and broken lines in Fig. 1, the direction of relative motion may be pre-selected by manual rotation of a control wheel 4 disposed on an outer surface of the movable assembly 2. For example, with the control wheel 4 positioned as shown with an indicating indicia 4a pointing towards the rear of the machine, depression of the lever 3 to its lower position will cause the movable assembly 2 to move from a neutral position with respect to the pedestal 1, horizontally and to the rear as indicated by broken lines. Similarly, by setting the control wheel 4 in the appropriately indicated position, the same depressing movement of the lever 3 will cause the movable assembly 2 to be moved in a plurality of directions with respect to the assembly 1 including upwards, downwards, or towards the front of themachine.

The purpose of the apparatus contemplated in the present invention is tojoggle or olfset structural shapes such as bars, angles, or elements of U, V, or Z sections. A portion of a typical workpiece A is shown in Fig. la as illustrative of the general form of work for which the apparatus of the present invention is adapted. The workpiece A shown, is of generally Z-shaped section comprising a pair of spaced vertical flanges a1 joined at their inner edges by a horizontal web portion a2. Indicating the operation which the present apparatus is adapted to perform, the workpiece A has an offset or joggle a3 in such a form that when the joggled portion of A is mated with the end of a piece of material of the same shape to form a lap joint, the outer faces of the adjoining flanges a1 are co-planar, presenting a vcontinuous surface adaptable for attachment to a skin or sheet without discontinuity.

The apparatus of the present invention produces joggles or offsets of the character indicated at a3 in connection with the workpiece A, by rigidly clamping or holding the workpiece A between the pedestal 1 and the movable assembly 2 with the portion to be joggled located at their mating surfaces, and then displacing the movable assem- `bly 2 with respect to the pedestal 1 in the direction of the desired joggle, by operation of the lever 3.

The pedestal 1 comprises essentially a base plate 10, a pair of vertically disposed side plates 11 and 12, anda horizontal table plate 14. The side plate 11 is tiat and relatively thick and detines a continuous outer working surface 15. The side plate 12 comprises a fiat central portion 16 spaced from plate 11 having rounded portions 17 whose edges are adapted to abut against and be` fastened as by welding to the inner surface of the side plate 11 defining a central cavity 19 Within the pedestal 1. The horizontal base plate is secured as by welding to the lower edges of the side plates 11 and 12y and may be providedl with suitable mounting holes 21 for bolting the pedestal 1 to a oor or bench, The table plate 14 is generally rectangular having an upper working surface 22 and is welded or otherwise secured to the upper edges of the side plates 11 and 12 with its inner edge 23 contiguous with the working surface of the side plate 11v and with the working surface 22 disposed at a 90 angle thereto.

The movable assembly 2 comprises a hat rectangular back plate 24 having an outer working surface 25, a table plate 26, having a working surface 31, a threesidedwall member 27, and a cover plate 28. The back plate 24 of the assembly 2 conforms generally in Width tothe side plate 11 of the pedestal l..

The rectangular table plate 26 is secured as by Welding with an inner edge 29 abutting and aligned withthe upper edge of the back plate 24 and so that its upper working surface 31 is normal thereto. The wall mem- While the relative-V ber 27, asbest shown in Figure 2, is U-shaped havinga 7 pair of vertical side elements 32 and 33 joined by a central portion 34 and is adapted to be secured by Welding at the upper edges of the wall portions 32 and 33 to the lower face of the table plate 26 and the lateral edges of the entire wall member 27 to the inner face of the back plate 24 to form a generally box-like enclosure. The cover plate 28 conforms to the wall member 27 and is adapted to be movably bolted to the outer edge thereof.

In assembly, the movable assembly 2 is supported on the pedestal 1, in such a manner that in the machines vertical position the working surface 25 of plate 24 of the former is opposed to and slightly spaced from the working surface 15 of the pedestal 1, and the upper surfaces 22 and 31 of the table plates 14 and 26 respectively are coplanar. The assembly 2 is supported upon side plate 11 of pedestal 1 by a series of support assemblies 35, four being shown. A support assembly 35 is disposed adjacent each corner of the back plate 24 within thebox-like enclosure formed by the table plate 26 and the wall member 27. Each of the support assemblies 35, as best illustrated in Figures 3 and l0, is secured to the sideV plate 11 of the pedestal 1 by means of a central stud 36 having a cylindrical shaft portion 37, a head 38 and terminating in an undercut threaded portion 39. The studs 36 are disposed with their head portions 38 within the cavity 19 of the pedestal l, extending outwardly through holes 4) in the side plate 11, through Washers 41, and through aligned holes 42 in reinforcing blocks 43 which are welded to the inner surface of thc side, plate 11, in such a manner that the shaft and threaded portions 37 and 39 extend through the back plate 24 of the assembly 2. In addition to the stud 36, each of the support assemblies 35 comprises a generally cylindrical body member 44, a support block 45, a sprocket 46, a retainer plate 47, and a nut 43. The body member 44 isy undercut on its rear edge to form a bearing surface 49 which is adapted for rotatable support in a hole 51 in the'back plate 24 of the assembly 2. The body member 44" is provided with a central counterbore 52 which accommodates a circular central boss 53 of the sprocket 46 and in which the latter is secured against rotation by a pairy of clamping bolts 54 having wedging members 55 adapted to-engage the outer surface of the boss 53 on being tightened. The support block 45 is apertured to r rotate on the extended shaft portion 37 of the stud 36 and is generally square in cross section, fitting for sliding movement a transverse slot 56 milled across the rear face'ST of the body member 44. The circular slot re- 'tainer plate 47 is centrally apcrtured to accommodate the threaded end portion 39 of the stud 36 and is of smaller diameter than the teeth 58 of the sprocketl 46 but larger than the diameter of the central bore 59 thereof, andlserves to position the assembly 2 with respect to thefpedestal 1, when locked by the nut 4S on the threaded portion 39 ofthe stud 36. A grease fitting 61 is centrally provided in the end of the stud 36 communicating by a suitably drilled passage 62 to the inner counterborc of` the body member 44 to provide lubrication.

From the foregoing description it will be apparent that when` the support assemblies 35 are located in positions in which the slots 56 of the body members 44 lie parallel to the edges of plate 24, that is, all extend in the same direction, the actionof the support blocks 45 therein limits the direction of freedom of the assembly 2 with respect to the pedestal 1 to the direction of parallelism of the slots 56( For example, when the slots 56 of the support assemblies 35 are horizontal as shown in Fig. 7, the assembly 2 is restricted to horizontal movement in either direction from neutral, while positioning the slots 56 of the support assemblies 35 to the vertical, as illustrated in Fig., 8, restricts movement of the assembly 2 to either direction vinV a vertical plane.

When the support assemblies 35 are all positioned in a1- horizonta-l direction, the weight of the assembly 2 is transmitted-,to and, supportedv byv the pedestal 1 through,

engagement vof the lslots "56 withthe support blocks 45. When the slots 56 are ina vertical position a's shown? in Fig. 8, the assembly 2 is supported against the force vof4 gravity by a spring-loaded cylinder.6? mounted on the side plate 11 of the pedestal 1, comprising a cylinder bodyy 64,` a `plunger 65, and a compression spring 66.`

The cylinder body 64` has a` central axial bore 67 Aex` tending through one end and adapted to loosely accom-` modate the spring 66. The plunger 65 ts withinthe bore 67 of the cylinderbody 64 and is adapted to be supported therein by the spring 66 and project above the open end thereof. The cylinder body 64 is provided with laterally extending mounting `lugs 68 drilled to accommodate mounting bolts' 69.` The back plate 24 ofthe assembly 2 is relieved by openings 71 through which the bolts 69 extend into suitably tapped holes in the side plate 11 of the pedestalZ. Thecylinder 63 is supported from the side plate 11 and in spaced relation from theback t plate 24 by means ofr spacer bushingsV 72 around each of the mounting bolts 69. y'The openings 71 in the back plate 24 provide su'icient clearance with ,the spacer bushings 72 to permit the desired `iimits of movement `in all directions between the assembly 2 and the pedestal` 1.

-In\assembly,` the cylinder 63 is located with the open end of the cylinder body 64 upwards and the upperface of the plunger 65 bearing against the lower face of the table plate 26. An adjusting screw 73 is providedrin an axial threaded hole through the lower closed end or' the cylinder body 64, its upper end engaging a washer 74 within the bore 67 which in turn supports the lower end of the spring 66. By means of the adjusting screw 73, the compression of the spring 66 may be balanced against the weight of the assembly 2-fwhen the support assemblies are positioned with the slots 46 in a vertical direction, so that the upper Working surfaces v:il and 22 of the table plates` 26 and 14 respectively are coplanar, characterizing the neutral position of the present joggling machine.

As stated hereinabove vertical plate 24 and table plate 26 of movable assembly 2 are adapted to be moved back and forth horizontally and up and down vertically, the particular direction of movement being determined by the position assumed by slot 56 of body member 44 which confines support block 45. The manner and means whereby the position of slot 56 is changed will now be described. The operative means for effecting this change of position includes control wheel 4, which as shown, comprises a generally cylindrical body member 81 to which a plurality of outwardly projecting handle bars 82 are suitably aixed. Body member 81 is counterbored as at 83 to accept a bolt 84 which projects through the bore to the exterior of body member 81 and isrthreaded at its outer end 35 to be received within a threaded hoie 86 in plate 24 of movable assembly 2, thereby to rigidly affix bolt 84 to plate 24. Bolt 84 serves as a rotatable support for body member 81 with the interior walls of bore 83 engaging and riding upon head 87 of bolt 84 and upon the shank thereof as at 88. A spring 89 is confined within bore 83, encircling bolt 84 and having its opposite ends seating upon head 87 of the bolt and upon an annular shoulder 91 provided within bore 83.

Disposed between the inner end of body member 81 of control handle 4 and the front surface of plate 24 is a drive sprocket 92 having a rotatable support upon a bearing surface 93 provided by bolt 84. Drive sprocket 92 is made to rotate in unison with body member 81 by means of a pin 94 one of whose ends is positioned within a bore 95 which extends from the rear surface of body member 81, pin 94 being maintained therein as by a force fit. An opening 96 extending from the front surface 97 of body memberj81 communicates with bore 95 and affords a passage by means of which a suitable tool may be inserted to drive out pin 94 when desired. Pin 94 projects from body member 81 through an opening 98 aligned with bore 95 to provide the interconnection between body member 81 and drive sprocket 92 whereby 6 they will move in unison. A series of circular openingsI 101, 102, 103, and 104 are provided in plate 24 in annularly and equally spaced relationship about threaded hole 86 which carries bolt 84. The projecting'end 105 of pin 94 is adapted selectively to be passed through any of the openings 101, 102, 103 and 104 to project into a cavity 106 afforded by side plate 11 of pedestal 1.` The purpose of projecting the end of pin 94 within cavity 106 will be described hereinafter. The selective positioning of pin 94 within the annularly arranged openings mentioned is accomplished by pulling upon the handle hars 82 tojmove control wheel 4 normally away from plate 24 against the force of spring 89 to withdraw the outer end of pin 94 from the particular opening being occupied. Wheel 4 may then be rotated about bolt 84 to position pin 94 for acceptance by any of the other of the annularly arranged openings. VUpon release of the wheel 4 compressed spring 89 will exert its force to move body member 81 slidably upon bolt 84 toward plate 2 4 to pass pin 94 through the desired opening to once again project within cavity 106. It is obvious that as control wheel 4 is rotated the position of `arrow 4a is changed and made to point in the direction of movement desired for movable assembly 2. Rotation of control wheel 4 when pin 94 is in its freed position will result in a change in the direction of the slots 56. This change is effected through the agency of a drive chain 107 which meshes with the teeth 58,01? the various sprockets 46 of the assemblies 35 and fits upon the teeth of drive sprocket v 92. It is readily apparent that when body member 81 of control wheel 4 is manually rotated upon bolt 84 drive sprocket 92 is made to rotate with it by reason ofthe;V interconnection therewith through pin 94. Rotation off drive sprocket 92 moves drive chain 107 to elect like rotation of the various sprockets 46. Sprockets 46, as

kdescribed hereinabove, are aixed tobody members -44 of assemblies 35 which members 44 have the slots 56 formed in their rear faces 57. Therefore, when a turn-. mg force is applied to sprockets 46 during the time thatpin 94 is in withdrawn .position rotation of body members 44 about bolts 36V of assemblies 35 will occur to thereby change the direction of the slots 56.V ,At this` time there isno movement of plate 24, rotation of central handle 4 merely results in movement of the various sprockets to turn the body members `44 to align the slots 56 in a desired direction. The manner in which force is applied to effect movement of `plate 24 and in the di@ able assemblyA 2 relative to pedestal 1 is applied against the portion of pin 94 which projects into cavity 106 inl plate 11. This force is provided by a Camming wheel 111 whose constructionis best shown in Figure 5a; As iilusj trated camming wheel 111 comprises an annular body member 112 having four arcuate openings or slots 113., 114, 115 and 116 formed about its periphery and equally .paced therearound. Slots 113, 114, 115, and 116 are adapted to align with openings 101, 102, 103, and 104 in plate 24 and projecting portion 105 of pin 94 will extend into one or the other of these slots dependent on which direction it is desired that movable assembly 2 be moved. Camming wheel 111 is rigidly atiixed to reduced portion 117 of a shaft 118 which projects into cavity 106 of plate 11. Shaft 118 extends between plates 11 and 12 of pedestal 1 and is rotatably supported adjacent one end by a support member 121 axed to the inner face of plate 11 as by welding. Support member 121 is located on plate 11 adjacent cavity 106 and closes one end thereof. This member 121 is centrally apertured to accommodate a ay-rexezeeaA ous suitably drilled passagesI 127 to the two bearings 122?.l

and 123.

Joggle lever 3 is affordedto eiect rotative movement of shaft 113 to actuate camming wheel 111 and thereby pin 94 and movable assembly 2. This movement will be fully explained hereinafter. J oggle lever 3 is operatively mounted to pedestalfl, being pivotally supported, as best shown in Figures 3 and 4, upon a stationary pin 123 which extends through an opening 129, provided in lever 3spaced from its lower end and an aligned opening 131 in plate 12, and spans cavity 19 to be threaded into plate 11. Bearing blocks 132 and 133 welded to the inner faces of platesll andl 12 provide support for pin 128. The motion of joggle lever 3 about the pivotal support of pin 128 is transmitted as a rotational force to shaft 118 through a pair of link'elements 134 and 135, link element 134being of generally L-shape. loggie lever 3 at its lower end is bifurcated, as shown at 136 to accept the 'f lower end of link element 134. A pin 137 pivotally connects this end of link element 134 to bifurcated portion 136. A pivotal interconnection is afforded between link elements 134 and 135 by a pin 138 which connects the lower end of the second link element to link element 134 at a point spaced from the upper end of the latter. A locking assembly comprising a pair of studs 141 and a locking bar 142 rigidly atixes the opposite end of link element 135 to projecting portion 125 of shaft 118.

Joggle lever 3 in being moved downwardly or counterl' clockwise, fromy its rest position, shown in Figure 4, acts against a restraining force which is applied to the upper surface'143 of generally L-shape link 134. This force is provided by an assembly 144 supported at the exterior of panel 12, which comprises a hollow cylinder 145, a plunger` 146 extending from the bottom end of cylinder and an adjusting screw 147 which works upon a cornpression spring (not shown) within cylinder 145 which spring-loads plunger 146. Assembly 144 provides a force which is suicient to restore joggle lever 3 toits rest position when the latter is released, thereby simultaneously restoring the joggling machine to its neutral position.

The extent of rotative or angular movement of joggle lever 3 is controllable to the end that the depth of joggle in aY work piece may be controlled. This rotativeV or angular movement of'joggle 1ever3 may be maintained within prescribed limits b'y means of a pair of adjustable stops 148 and 149 suitably mounted on a slide bar 151 which'isaflxedthroughY bolts 152 and a spacer block (not shown) to the exterior surface of'plate 12. As shown in Figure 4 the stops 148 andr149 andthe slide bar 151' are so locatedrelative to the joggle lever 3 that the central portion of joggle lever 3 lies within the space between stops 148 and 149 and the opposite lateral edges of ijogglelever 3 are engageable therewith. Stops'148 and. 149 are of a shape to permit them to be fitted upon slide bar 151 and may bemoved toward or away from each. other on bar 151 and aixed indesired. positions through usual fasteningmeans to dene the limits of movement of joggle lever 3. The upper stop 143 will. be positioned at apoint on bar, 151 which will halt joggle lever 3 at itsrrest position. and movable assembly 2 inV its neutral position'.`

To'support awork-pieceA inclampedV position for the joggling operation) there are` provided apair of jawholders; 153 and 154 which are aixed'to, the workingsurfaee 31 of tableplate26fofrnovableassembly 2 and a secondpair of tjawholders 155 and 156 supportedupon `workingvsurface '22'of table plate 14ofpedestal 1. Each" of the various jawholders embody` asubstantially block-shape' Crt bodymember 157. The forward jawholders.153-and`155 of?y each-pair are located in side-by-side` relationship.` in

horizontalalignment as are the rear jawholdersf154 and' Rear jawholders 154 and 15'61arey 156, one-to the other. rigidlyy aixed, as by bolts, or in any other suitable manner, to their respective working surfaces 31 and 22. Each of. the forward jawholders 153 and 155 has' the underside of `its body member 157 milled to afford av T-slot 158 whereby the body members 157 may be fitted ,t to T-shape slide runners 159 which are suitably aixed.

movements of the movable jawholders 153 and 155 toward' l and away from rear or stationary jawholders 154 and156.

it is obvious that with this construction there can bey no vertical orside-to-side movements of the movable jawholders 153 and 155.

Each pair of jawholders 153-154 and 155- 156 mount a pair of cooperating jaw members 162y and 163. Each jaw comprises a body member 164k having'a dovetail portion 165, by means of which it may be clamped to aijawholder as will be described. Opposed faces 166 and 167 of the jaw members 162 and 163 are provided configura tions to conform to the shape of the work-piece to be joggled. In Figure l the typical work-piece A selected, by way `of example, isof generally Z -shape in cross section and its vertical llanges a1 and web portion a2 are supported within appropriately shaped slots or grooves provided in the mating faces 166 and 167 of the jaws 162 and 163. lt is understood, of course, that the present inventionl is not restricted to use only with Z-shape workpieces. It is readily apparent that jaws 162 and 163 can be provided with mating faces 166 and 167 of various configurations to conform to and permit use with-work pieces of various cross-sectional eonformations.

hfiovaole jay/holders and 155 are alike in construction and assembly and the structural details of but one will therefore be described, and that one will be assumed to be ,iawholdcr 153 and will be described in connection with Figure 6. As illustrated body member 157 has its forward face 16S cut-away to provide a-slotl dependent portion 177 at its projected end. The projected end of plate 176 with its dependent portion 177 cooperates with slot 169 to effect a cai/ity which is of generallyv dovetail outline for the accommodation of the dovet'aill portion of a jaw member 162. lt is noted that clamping plate 176 is mounted for movement relative to 'body member 157. An inwardly tapered opening 178 extends from the top surface 179 of clamping plate 176 t0 the under surface 131 thereof. A tightening knob 182 carrying a threaded member 134 is positioned upon clamping plate 176 at opening 178, the threaded member 184 passing through opening 17S and being threaded into a tapped hole in the body member 157. A washer 186 `spans thev entrance to tapered opening 17S and the bottom sur face 187 ol' knob 182 bears thereagainst. Rotation of knob 182 to move threaded member 134 into tapped hole 185 forces clamping plate 176 downwardly toward body member 157 to mesh dependent portion 177 of the plate 176 with thel dovetail portion 165 of the jaw member to bel accommodated. This movement of' dependent portion 177 of plate 176 into mesh with the dovetail portionvent dovetail portionl 165 from being slid'endwise-out ofmounted position-on body member 157.

grasses 9 The tightening force to rigidly maintain a jaw member in place is applied to clamping plate 176' and therethrough to the jaw member which is to be mounted by a pressure assembly indicated generally at 180. Pressure assembly 180 comprises a cylindrical shaft 188 having an eccentric portion 189 and a reduced portion `191'. Cylindrical shaft 188 is of sutcient length to span the width of body member 157 and project to either side thereof, and is supported for rotative movement within aligned openings 192 providedin spaced wall portions 172 and 173 of body member 157. A through hole190 is provided at one projecting end 193 of shaft 188 to accommodate a turning lever 194 by means of which rotative movement of shaft 188 maybe attained. A screw 195 is threaded `through shaft 188 adjacent its opposite end at the reduced portion 191. Screw 195 and lever 194 act to prevent shaft 188 from moving endwise out of operative position on body member 157. Positioned at the eccentric portion 189 of shaft 188 is a pin 196 having a head 197 whiclirides upon eccentric portion 189 and a shank 198 which extends upwardly into an aperture in plate 176. An annular shoulder'201 is afforded on head 197 which is adapted to press against the under surface 181 of clamping plate 176. ln the final tightening of clamping plate 176 upon a dovetail portion 165 of a` jaw member, lever` 194 is depressed downwardly to rotate shaft 188 and` revolve eccentric portion 189 as in a cam action to force headv 197 of pin 196 against the under surface 181 of clamping plate 176 to ypivot plate 176v in a counterclockwise direction about threaded member 184 to secure clamping plate 176 firmly upon the dovetail portion 165 of the particular jaw member being mounted. Thus knob 182 and itslass'ociated threaded member 184 are not required to effect the rigid clamping of the jaw member tothe jawholder b ut rather serve to so move clamping plate176 that thelatter will cooperate with the dovetail portion 165 of a jaw member to slidably hold the jaw member upon the jawholder. The tightening or securing'force to aix the jaw member to the jawholder is derived from the cooperation of shaft 188 and pressure pin 196.

There has been described the means for clamping jaw member 162 to movable jawholder 153. The second movable jawholder 154 and the oppositely faced stationary jawholders 155 and 156 which cooperate with movable jawholders 153`and`154` maintain their jaw members 162 and 163 in the same manner as does jawholder 153. Thus each of the jawholders 154, 155 and 156 embodies a clamping plate176, an adjusting knob 182 with its asso-'1 ciated threaded member 184, a pressure shaft `188 with its eccentric portion 189, a lever 194 to actuate pressure shaft 188, and a pressure pin 196 havinga head 197 adapted to act upon the undersurface of the clamping plate 176 to cause the latter to be clamped firmly upon the dovetail portion 165 of a jawholder.

Since the various jaw lmembers 162 and 163 are adapted by reason of the mounting arrangement described to be slidablyendwise movable within their respective jawholders, it is obvious that thewidth of joggle of a workpiece is set by adjusting the lateral spacingbetween the jaw pair 162-163 `carried by jawholders 153-154 onv table plate 26 of movable assembly 2 andthe jaw pair 162-163 carried by jawholders 155-156 on table plate 14.0f pedestal 1, before the clamping plates 176 of "the various jawholders are rigidly clamped upon the dovetail portions 165`of the'yarious jaw members. To accommodate the jaw membersl 162 and 163 carred by the various jawholders to various thicknesses of work material, movable jawholders 153 and 154` are` adapted to be moved rectilinearly upon slide runners 159. To effect this movement of jawholders 153 and 154, there is provideda pair of actuating assemblies, indicated generally at 2 05 and 206, in operative associationhwith these jawholders; f

, Actuatinzg assemblies" 205 and 206 are alike in construcl Cil 10 tion and purpose and as shown, eachcomprises a bracket- 207, the bracket 2,07 ofv assembly 205 being suitably rigidly atlixed to the exterior surface of wall member 27 of movable assembly 2 and the bracket 207 of assembly 206 being also suitably rigidly atiixed to the exterior surface `of plate 11 of pedestal 1. Each bracket 207 is of generally U-shape havingspaced triangular-shaped legs 208, with pivot apexes as at 209. Pivot apexes 209 are provided with aligned openings for rotatably supporting a pivot pin 211. An elongated, generally block-like, adjusting bar 212 is pivotally mounted substantially cenA trally of its length on pivot pin 211. The upper end of adjusting bar 212 is milled on two sides to form a lug-like extension 213 to which an end of a linkV 214 is pivotally fastened by a pin 215. Spaced from the lug 213 there is provided in adjusting bar 212 a horizontal front-to-rear threaded opening 216 which accommodates the threaded portion 217 of a screw knob member218,

l The rear end of threaded portion 217 is adapted to bear against a vertical stop element 221. Vertical stop element 221 of actuating assembly 205 is welded to working surface 31 of table plate 26 of movable assembly 2 while plate221 of actuating assembly 206 is welded to working surface 22 of table plate 14 of pedestal 1. A second screw knob member 222 is operatively supported by the adjusting bars 212, each adjusting bar being provided near its lower end with a horizontal front-to-rear threaded opening 223 for accommodation of the threaded portion 224 of screw knob member 222. The outer end of threaded portion 224 is adapted to engage and bear upon the bight portion of the generally U-shaped bracket 207. j

Links 214 which are pivotally connected at one of their ends to lug extensions 213 of adjusting bars 212 are connected at their opposite ends by a pivot pin 225 to locking levers 226. Locking levers 226, as shown, each comprises an elongated flat body member 227 having an upward jog as at 228. The connection of links 214 to locking levers 226 is made intermediate the ends thereof and in the area of the jog 228. Each locking lever 226 has a handle portion 231'atforded at one of its ends 232. The opposite ends 233 are projected into the vertical slots 171 of the body members 157 of the movable jawholders 153 and `154 and are therein pivotally interconnected with the spaced wall portions 172 and 173 of the body members 157 by pivot pins 234 whose ends are suitably maintained within aligned openings in spaced wall portions 172 and 173. The locking levers 226 serve to securely position the movable jawholders 153 and 155 relative to the stationary jawholders 154 and 156 and prevent any rectilinear movement of the former upon their v slide runners 159.

' To space the movable jawholders 153 and 155 and the jaw members 162 that they carry properly relative to stationary jawholders 154 and 156 and the jaw members 163 supported thereon to accommodate the thickness of a work piece to be joggled, it is necessary merely to) move pivotpins`225` toward or away from the jawholders 153 and155 dependent on the direction of movement atforded bars 212 by screw knob members 218 and 222 Y to effect rectilinear movement of jawholders 153 and 155 on their slide runners 159 toward or away from their associated stationary jawholders 154 and 156.

In the construction hereinabove described the various jawholders 153, 154, and 156 are adapted readily to assume a separated position relative to one another to permit the placement of a workpiece, lateral displacement between jaw members 162 and 163 is quickly achieved to determine the width of a joggle in the work. l piece,I the workpiece is securely maintained in the accom? plishment of the joggle, and yremoval of the workpiece after the joggling operation is easily effected.

Inthe performance of a jogglingA operation the proper spacing between the individual members of each pair of jawholders 153-154 and 155-156 to accommodate a given workpiece thickness must be effected and jaw mem bers 162 and 163 carried by jawholders 153-154 must be properly laterally spaced relative to jaw members 162 and 163 of jawholders 155, 156 to achieve the width of jog desired in the workpiece.

With the jawholders 153-154 and 155-156 in the open position, the two pair of jaw members 162 and' 163 are slidably mounted thereupon, one pair to each set of jawholders, and dispoed such that the faces 167 of the rear jaw members 163 mate with the faces 166 of the forward jaw members 162. The lateral spacing between the jaw members 162 and 163 carried by the pair of jawholders 153-154 and the jaw members 162 and 163 mounted on the pair of jawholders 155-156 is then specically set by hand to define the exact width of jog desired in workpiece A. Knobs 182 on each of the four jawholders are turned to actuate the clamping plates 176 downwardly toward the jaw dovetails 165 to take up slack.l Levers 194 of the jawholders are then pressed downwardly to rotate shaft 188 and move pin 196 upwardly to apply pressure .upon clamping plates 17 6 which pivots the latter upon studs 184 to cause them to rigidly clamp down upon the jaw dovetail 165.

To adjust the assembly to accommodatethe thickness of the workpiece, locking levers 226 are. pressed downward to slide movable jawholders 153 and 155 along runners 159 into position adjacent stationary jawholders 154 and 156. ln this movement the ends of links 214 rotate about the pivot pins 215 and 225 and levers 226 turn about holding pin 234, This action results in a force being applied to the pivots 234 to effect the desired movement. of movable jawholders 153 and 155 which carry pivots 234. With movable jawholders 153 and 155 positioned adjacent stationary jawholders 154 and 156 the screw knobs 218 and 222 are manipulated to adjust the position of adjusting bar 212 until the spacing between the mating faces 166 and 167 of jaw members 162 and 163 is the amount required by the thickness of the workpiece. Adjusting bars 212 in this operation are caused to .pivot about pins 211, translating a horizontal motion through .pins 215, links 214, pins 225, locking levers 226, and pins 234 to jawholders 153 and 154-forward or rearward-depending on the direction of turning of vknobs 213 .and 222.

After the various jawholders and their associated jaw members have .been properly adjusted and Vlocated relative to one another the locking levers 226 are raised to separate the movable jawholders 153 and.,155 from stationary jawholders `154 and 156. WorkpieceA isplaced in. position on the jaw members 162 of the movablejawholders .153 and 154 and locking levers `22,6 are then pressed down to actuate jawholders 153 and 155 to their closed l positions thereby locking workpiece A in. position.

The depth of joggle is then set by adjusting and setting lower ,stop 149 on slide bar 151, the position of stop 1.49 determining the vextent of downward movement of joggle lever 3 and thus the extent of joggle depth.

Now with workpiece A locked in position the machine isset to effect the joggle. Forsake of illustration it is assumed that a joggle is required which will shape the workpiece A so that it appears as shown in Figure la. To effect this joggle, it is necessary to index the present machine such that movable assembly 2 willmove rearwardly, or to the left as viewed in Figure 1, when joggle lever 3 is .depressed downward to the dotted line position illustrated in Figure l. Such indexing is accomplished bylrotating'thetcontrol wheel4'until indicia 4a points rearward. To secure lthe desired rotation of control wheel 4, a force fis yapplied to the handle bars 82' of wheel 4 to -move it normal to cover plate 28. Thismovement is accomplished against the load spring S9 and serves to disengage pin 94 from camming wheel 11 and to vwithdraw it from whichever of the circular openings 101, 102 or 104 in plate 24 that it may have been occupying. With pin 94 held in this withdrawn position wheel 4 is rotated until indicia 4a points rearward. At this setting, on release of wheel 4, pin 94 is in position to be projected, under the force of spring 89, into and through circular opening 103 in plate 24 and into slot 115 of camming wheel 111. The rotation of wheel 4, while pin 94 is in its withdrawn position, will result in like rotation of drive Sprocket 92 through the agency of pin 94; movement of drive sprocket 92 will actuate the chain drive 107 to rotate the various support assemblies 35 an amount Sullicient to properly locate the body members 44 thereof so that the slots 46 therein lie parallel to the upper andl lower edges of plate 24. The support blocks 45 of the assemblies 35 which rest in slots 46 will then confine. they assemblies 35, and hence movable assembly 2, to movement in a horizontal direction-forward or rearward from neutral-as hereinbefore described.

Now with pin 94 resting in slot 115 of camming .wheel 1'11 and slots 56 properly located, joggle lever 3 is pressed downward. This causes movement of links 134 and 135 to effect rotation of shaft 118. Camming wheel 111 connected to the inner end of shaft 11S will rotate in unison therewith and in a clockwise direction as viewed from the control wheel side of the assembly 1. Pin 94 whose end 105 projects into slot 115 of camming wheelv111 will have pressure exerted against its sides to bodily move the tpin 94 rearwardly. As pin 94 is secured to plate 24 of movable assembly 2 through control wheel 4 and bolt 87, plate 24 will shift horizontally rearwardly sliding upon support blocks 45 and movable assembly 2, of which plate 24 is a part, will be displaced to the rear shifting the pair of jawholders 153-154 relative to the pair of jawholders 155-156 to produce the type of joggle in workpiece A as shown in Figure 1a. Locking levers 226 are then operated to withdraw movable jawholders 153 and 155 from stationary jawholders 154 and 156 to permit the formed workpiece A to be removed.

It is noted that as joggle lever 3 is depressed. from its rest position, it encounters a restoring force in vthe assembly 144 whose spring-loaded plunger 146 contacts surface 143 of link 1.34. Thus when the joggling operationis complete and the workpiece A removed joggle lever 3 is released, the force of plunger 146 will react to return joggle lever 3 to its neutral position as determined by stop 148 on slide bar 151, and to carry movableassembly 2 back to its neutral position.

If it were desired to produce a joggle opposite to that described, a motion of the movable assembly 2 forward, or to the right as viewed in Figure l, is required. In this case, control wheel 4 is manipulated to position indicia 4a pointing to the front of the machine. Pin 94 will have been moved, in the manipulation of control wheel 4, to project through opening 101 in plate 104 and rest in the upper slot 113 of camming wheel 111, and the chain drive 107 will have actuated the various support assemblies 35 to so position the slots 56 and the support blocks 45 that the assemblies 35, and therefore movable assembly 2, can move only in a horizontal direction from the `neutral position. Depression of joggle lever 3 imparts the same clockwise motion to shaft 118 and camming wheel 111, as in the joggling operation above described. Now,

however, since pin 94 rests within upper slot 113 of camming wheel 1'11, this clockwise motion will cause pin 94, hence, movable assembly 2, to be shifted bodily toward the right, or the front of the machine.

To produce a vertical upward joggle, it will be necessary to shift movable assembly 2 upwardly. In this case, 'control wheel 4 is manipulated and actuated to direct indicia 4a upwardly. This operation of control wheel 4 will withdraw pin '94 from whichever circular opening in plate 24 it may have been occupying and will project it through circular opening 102 to dispose its end 105 within slot 114 of camming wheel111. Chain drive 107 will actuate support assemblies 35 to position slots 56v and support blocks 45 so that they would allow support assemblies 35 and movable assembly 2 to move only in a .vertical direction from neutral. Again, depression of joggle lever 3 results in a clockwise motion being provided shaft 118 and camming wheel 111, but now with pin 94 disposed in the left slot 114 of camming wheel 111 rotation of the latter will cause an upward force to be applied to pin 94 to move movable assembly 2 upwardly and effect a vertical upward joggle.

In producing a vertical downward joggle in a work-k piece movable assembly 2 is required to move downwardly. Control wheel 4 is therefore actuated to bring indicia 4a to a downwardly pointing position. Pin 94 will now project through circular opening 104 in plate 24 and will engage slot 116 of Camming wheel 111. Chain drive 107 will have actuated the `support assemblies 35 to dispose slots 56 and support blocks 45 in positions which will allow support assemblies 35 and movable assembly 2 to move vertically only from neutral. Depression of joggle lever 3 rotates shaft 118 and Camming wheel 111 clockwise, as in the other operations described. Pinl 94 will be shifted downwardly to carry movable assembly 2 downwardly andthe downward joggle is produced.

Downward movement of movable assembly 2 is accomplished against the retarding force of spring-loaded cylinf` de r 63`which will return the movable assembly 2 to the neutral position against the force of gravity on completion of the joggling operation and removal of the joggled workpiece.

It is evident from the above description of operation that the present joggling machine can be employed to effect joggles ina given conguration workpiece in a rapid manner. Where joggles are required in different directions, the control wheel 4 is readily manipulatable to set the various directing elements as required.

It is noted that in the movements of pin 94 and movable assembly 2 in the various directions from neutral that each movement is accomplished through effecting,sby`v means of joggle lever 3, a clockwise movement of shaft 118 andcamming lever 111. Camming lever 111 is thus;v always rotated in the same direction, the change in direction of movement of movable assembly 2 being accom-l plished by changing the cooperation of pin 94 with vthe peripheral slots 113, 114, 115 and 116 of Camming' lever 111. o o a Y While'a certain preferred embodiment of the invention has been specically disclosed, itis understood that the invention is not limited thereto as many variations will be readily apparent to those skilled in the art andthe invention is to be given its broadest possible Ainterpretation within the terms of the following claims.

What we claim is: o 1. An apparatus for forming a joggle 1n a piece of material comprising a plurality of supporting assemblies` tions thereon, and means for rotating said rotatable means o in one direction to `actuate said means on said displaceableA assemblies for movement in a plurality of directions to effect the displacement of said displaceable supporting.

assemblies in a plurality of directions from a neutral position.

2. An apparatus for formingan offset in a piece of material comprising first supporting means for holding the material `during the forming operation, a stationary mount Y ;.-14 for saidiirst supportingrneans, secondsupporting means forholding said `material during the forming operation, movable mounting means for said second supporting means,` and means forrnoving said movable mounting means to displace said seeond lsupporting means relative to said first supporting means selectively in a plurality of' directions from a neutral position, said means for moving comprising actuating means mounted for movement in one direction, means operatively interconnecting said actuating means and said movable mounting means, saidV interconnecting means including means positionable upon said movable mounting means in a plurality of preselected locations and actuable by said actuating means in a plurality of directions to move said movable mounting means likewise in a plurality of directions, and adjustable means associated with said movablernounting means for limiting movement thereof to a predetermined direction.

Y 3L An apparatus for forming an offset in a piece of material comprising first supporting means for holding the material during the forming operation, a stationary mount for said first supporting means, second supporting means for holding said material/'during the forming operation, movable mounting means for said second supporting means, and means formoving said movable mounting means to displace said second supporting means .relative to`said` first supporting means selectively in a plurality of directions from a neutral position, said moving means comprising a rotatablemember, means operatively interconnecting said rotatable `member and said movable mounting means, said interconnecting means including means movable by said-rotatable member and positionablev on said movable mounting `means in a plurality of preselected locations whereby said rotatable member may move it in a plurality of directions, andactuating means for rotating said rotatable member always in the samel direction to effect movement of said positionable means.

4. An vapparatnsfor forming anofset in a piece of material comprising Vfirst supporting means for holding thematerial during the forming operation, a stationary mount for said first supporting means, second supporting means for holding said material during the forming opera-- tion, movable mounting means for said second supporting means,` and means for moving said movable mounting meansnto displace said second supporting means relative to said `first supporting means selectively in a plurality of directionsffirom a neutral position, said moving means comprisingV a rotatable member, means operatively interconnecting said rotatable member and said movable.

mounting means, said interconnecting means including means movable by said rotatable member and positionable on said movable mounting means in a plurality of preselected locations whereby said rotatable member may move it in a plurality of directions, adjustable means associated with said movable mounting means for limiting movement thereof to a ,predetermined direction, and o actuating means for rotating said rotatable member always in the same direction to effect movement of said positionable means.

5; ,An apparatus for forminga joggle in a metallic piece comprising iirst clamping means 'for holding a metallic piece during the forming operation, `a stationary mount for said first clamping means, second clamping means for holding `said `metallic piece lduring the forming operation,

a mount'for said second clamping means,` means support- Ying `said last-mentioned mount v upon said stationary mount for movement in a plurality of directions from a v associated with said adjustable means for selective positioning thereof, and actuating means having an operative interconnection with said supporting means for applying force to saidmovable mount to effect movement thereof relative to said stationary mount.

6.7 An apparatus for offsetting metallic material comzjrsaas prising first clamping means forlholding the material during the offsetting operation, a stationarymount for said rst clamping means, second clamping means -for`holding said material during the forming operation, a mount for said second clamping means supported by said stationary mount for selective movement relative thereto in a plurality of directions from a neutralposition, adjustable means associated with said movable mount for restricting movement thereof to predetermined directions, means for moving said movable mount, said last-mentioned means comprising a rotatable member, means operatively interconnecting said rotatable member and `said movable mount, said interconnectingmeans including means positionable on said movable mount ina plurality of preselectedlocations and movable by said rotatable member'in a plurality of directions, the direction of movement dependent on the position occupied by said positionable means, and actuating means for rotating said rotatable member always in the same direction to effect movement of said positionable means.

7. An apparatus Vfor offsetting metallic material comprising first clampingmeans for holding the material during the offsetting operation, .a stationary mount for said first clamping means, second clamping means for holding said material during the forming operation, a mount for said second clamping means supported by said stationary mount for selective movement relative thereto in a plurality of directions from a neutral position, adjustable means associated with said movable mount for restricting. movement thereof to predetermined directions, said'adjustable means including a body member having a slot and a support block receivable with said slot, means vfor moving said movable mount, said last-mentioned means comprising a rotatable member, means operatively interconnecting said rotatable member and said movable mount, said u interconnecting means including means positionable on said movable mount in a plurality o'f preselected locations and movable by said rotatable member in a plurality of directions, the direction of movement dependent `on the position occupied by saidpositionable means, and actuating means for rotating said rotatable member always in the same directiontoelfect movement of saidpositionable means.

8. An apparatus for forming an offset in a piece of material comprising first clamping means for holding the material during the forming operationa stationary mount for said first clamping means, second clamping means for holding the material during the forming operation, a mount for said second clamping means, a plurality of supporting assemblies for supporting said last-mentioned mount upon said stationary mount for selectivemovement relative thereto in av plurality of directions from a neutral position, an actuating means, and means operatively 'interconnecting said actuating means and said movable mount, said interconnecting means including a rotatable member rotatable always in the same direction by said actuating means, and a connecting element joining said movable mount and said rotatable member, said connecting element supported by said movable mount 'for .positioning in a plurality of preselected locations and being movable by said rotatable member ina plurality of directions to effect like movement of. said movable mount.

9. An apparatus for forming an offset in a piece of material comprising first clamping means vfor holding the material during the forming operation, a stationary mount for said first clamping means, second clamping means for holding the materialy during-the 'forming operation, a mount for said second clamping means, a plurality of supporting assemblies for supporting said last-mentioned mount upon said stationary mount'for selective movement relative thereto in a'plurality of directions from laineutral position, said supporting assemblies including adjustable means for limiting movement of 'the movable mount Ato a predetermined direction, saidfadjustable means eachl comprising a lbody member-having a slotand a support element receivableV within said slot, a drive member having an .operative connection with said supporting assemblies for actuation of said adjustable means to adjust the position of said body members and said support elements and in unison, an actuating means, and means operatively interconnecting said actuating means and said drive member, said interconnecting means including a rotatable member rotatable always in the same direction by said actuating means, and a connecting element joining said movable mount and said rotatable member, said connecting element supported vby said movable mount for positi'oning in a plurality of preselected locations and being movable by said rotatable member in a plurality of directions to effect 'like movement of said movable mount.

1'0. An apparatus for forming an offset in a piece of material comprising first supporting means for holding the material duringl the forming operation, a stationary mount for said first supporting means, second supporting means for holding said material during the forming operation, a movable mount for said second supporting means, and means for moving said movable mount to displace said second supporting means relative to said first supporting means selectively in a plurality of directions from a neutral position, said moving means comprising a camming wheel having aplurality of annularly arranged slots, means operatively interconnecting said camming wheel and said movable mount, said interconnecting means including a pin positionable on said movable mount in a plurality ofpreselected locations to be received Within said slots of said camming wheel whereby movement of Vsaid camming wheelI will move said pin in a plurality of directions to move said movable mount, and actuating means for rotating said camming wheel always in the same direction to effect movement of said positionable pin.

'll. An apparatus for forming an offset in a piece of material comprisingfirst supporting means for holding the material during the forming operation, a stationary mount for said first supporting means, second supporting means for holding said material during the forming operation, a movable mount lfor said second supporting means, and means 'for moving said movable mount to displace said second supporting means relative to said first supporting means selectively in a plurality of directions from a neutral position, adjustable means associated with said movable mounting means 'for limiting movement thereof to a predetermined direction, said adjustable means including a body member having a slot and a support element receivable Within said slot, said moving means comprising a camming yWheel having a plurality of annularly arranged slots', means operatively interconnecting said camming wheel and said movable mount, said interconnecting means includinga pin positionable on said movable mount in a plurality ofpreselected locations to be received within said slots of sa'id camming Wheel whereby movement of said camming wheel Will move said pin in a plurality of directions to move said movable mount, and actuating means for rotating-said camming wheel always in the same direction to effect movement of said positionable pin.

"12'. `An apparatus for offsetting metallic material comprising'rst clamping means for holding the material during' the offsetting operation, a stationary mount for said first clamping means, second clamping means for holding said material during the forming operation, a mount `for said second clamping means supported by said stationary j mount for selective movement relative thereto in a plurality of directions Vfrom a neutral position, adjustable means associated 'with said movable mount for restricting movement thereof'to predetermined directions, means for moving'said movableI mount, said last mentioned means comprising a Icamming vwheel having a plurality of notches about `its periphery, means operatively interconnecting saidfcamming wheel 'and said movable mount, said interconnecting means including a pin positionable on lsaid movable .mount iny a plurality of preselected locations Aand receivable ywithin said notches in the camming wheel l for movementby the Vcamming Wheel in a plurality of'di ma, 4er

17 r'ections, the direction of movement dependent on the notch occupied by said positionable means, and actuating means `for rotating said cam .ning wheel in one direction to eiect movement of said positionable pin in a selected direction.

13. An apparatus for forming an oiset in a piece of material comprising first clamping means for holding the material during the forming operation, a stationary mount for said first clamping means, second clamping means for holding the material duringthe forming operation, a mount for said second clamping means, a plurality of supporting assemblies for supporting said last-mentioned mount upon said stationary mount for selective movement relative thereto in a plurality of directions from a neutral position, means for adjusting said supporting assemblies into predetermined positions to determine direction of movement of said movable mount, an actuating means, and means operatively interconnecting said actuating means and said movable mount, said interconnecting Y means including a camming wheel rotatable always in the same direction by said actuating means, said camming wheel having a plurality of slots arranged in its periphery, and a pin having operative connection with said movable mount and positionable on said movable mount ina plurality of preselected locations to be received Within said slots of the camming Wheel whereby movement of said camming wheel will move said pin in a direction determined by its location to move said movable mount therewith.

14. An apparatus for forming a joggle in a piece of material comprising first clamping means for holding the material during the joggling operation, a `stationary mount for said first clamping means, second clamping means for holding the material during the forming operation, a mount for said second clamping means, a plurality of supporting assemblies for s'porting said last-mentioned mount upon said stationary mount for selective movement relative thereto in a plurality of directions from a neutral position, said supporting assemblies including adjustable means for limiting movement of the movable mount to a predetermined direction, said adjustable means each comprising a body member having a slot and a support element receivable within said slot, a drive member having an operative connection with said supporting assemblies for actuation of said adjustable means to adjust the position of said body members and said support elements and in unison, an actuating means, and means operatively interconnecting said actuating means and said drive member, said interconnecting means including a camming wheel rotatable always in the same direction by said actuating means, said camming wheel having a plurality of slots arranged in its periphery, and a pin positionable on said movable mount in a plurality of preselected locations and receivable within said slots of said camming wheel whereby movement of said camming Wheel will move said pin in a direction determined by its location to move said movable mount therewith.

References Cited in the le of this patent UNITED STATES PATENTS 283,535 Tittle Aug. 2l, 1883 382,426 Howe May 8, 1888 399,630 Phillips Mar. 12, 1889 465,348 Coiin Dec. 15, 1891 1,501,186 Psilander July 15, 1924 2,155,160 Bruno Apr. 18, 1939

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