US1258975A - Die-sinking machine. - Google Patents

Description

A. ARTHUR.

- DIE SINKING MACHINE.

APPLICATION FILED AUG-20. I915- RENEWED JUNE 11. I917- 1,%8,975. Patented Mar. 12, 1918.

1 SHEETS-SHEET 1.

L EJJM v ATTORNEYS A. ARTHUR.

DIE SINKING MACHINE.

APPLICATION FILED AUG-20,1915- RENEWED JUNE n, 19!?- 1,258,975 Patented Mar. 12, 1918.

TSHEETS-SHEET 2- III Patented Mar. 12, 1918.

1 SHEETS-SHEET 4- j WITNESSES.

a I gm A. ARTHUR.

DIE SINKING MACHINE. APPLICATION FILED Aue.2o. \915. RENEWED JUNE Patented Mar. 12, 1918.

1 SHEETS-SHEET 4- WITNESSES '1 f? C M A TTOR/VEVS A. ARTHUR.

DIE SINKING MACHINE.

APPLICATION FILED AUG-20. 1915. RENEWED JUNE H. 1911.

1,258,975. Patented Mar. 12, 1918.

7 SHEETS-SHEET 5.

WITNESSES. INVEE'A/TUR gfizz am fiat-fir $2 M;

ATTORNEYS A. ARTHUR.

I DIE SINKING MACHINE.

APPLICATION FILED AUG. 20, 1915. RENEWED JUNE II. I917- ,975. Patented Mar. 12, 1918.

ISHEETS-SHEET 6,

ATTORNEYS A. ARTHUR. DIE SINKING MACHINE.

JUNE 11. 1911.

APPLICATION FILED AUG.20, 19l5- RENEWED 1,258,975 Patented Mar. 12, 1918.

7 SHEETS-SHEET I.

$1 I I w T 4 IA I L I CV. 3 W,

ATTORNEYS ALBERT ARTHUR, or CLEVELAND, omo.

DIE-SINKING maoninn.

, Specification of Letters 1'atent.

Patented Mar. 12, 1918.

Application filed August 20, 1915, Serial m. 46,500. Renewed June 11, 1917. Serial no. 174,164.

To all whom it may concern:

Be it known that I, ALBERT ARTHUR, a

V citizen of the United States, and a resident of Cleveland, in the county of Cuyahoga and State of Ohio, have invented a new and useful Improvement in Die-Sinking Machines, of which the following is a specification.

My invention is an improvement in die sinking machines, and the invention has for its object to provide a machine of the character specified of the turret type, wherein a new and improved arrangement of holding chuck for the work is provided, a new and improved type of suitable support and operating mechanism therefor, and a new and improved arrangement for supporting and mounting a cutter,

In the drawings Figure 1 is a side view. of the improved machine,

Figs. 2, 4 and 5 are sections on the lines 22, 4-4 and 5-5, respectivel of Fig. 1, each looking in the direction 0 the. arrows adjacent to the lines,

Fig. 3 is a front view of one of the cutters Fig. 6 is a section on the line 6.-6 of Fig. 1,

Fig.

Fig. '8 is a belting,

Fig. 9 is a section through the bed or support atright angles to the section upon which Fig. 5 .is taken,

Fig. 10 is a section of the bed parallel with the section shown in Fig. 1, but to one side thereof,

Fig. 11 is a top plan view of Fig. 12,

Fig. 12 is a side viewof Fig. 11,

Fig. 13 is a front viewshowing the mech- 7 is a sectional view of the cutter,

diagrammatic view of the 'anism for moving the spindle vertically,

and

Fig. 14 is a top plan view of the split nut, Figs. 9 to 14 inclusive, 'being on an enlarged scale. 4 4

The present embodiment of the invention comprise a supporting frame composed of screws 5.

shaft 6 has keyed thereto a,

The driving clutch sleeve 7, by means of a key or feather 8, and the sleeve is operated by meansof a lever 9, which is pivotedat 10 to the base, I

and has a ring intermediate its ends which encircles the sleeve and is rotatably connect-. ed therewlth asindicated at 11. This sleeve.

is enlargedinternally as indicated at 12, and

a solid shaft 13 is journaled in a block 14,

extending upward from the base within the column, and the outer end of the shaft 13 has a head 15, which fits within the recess or enlargement 12 of the sleeve, and the inner end of the enlargement and the adjacent .surface of the head have cooperating clutch teeth. When the sleeve is moved outwardly toward the driving shaft 6, the clutch teeth will be connected and the shafts 6 and 1.3

.will rotate together.

The shaft 6 has a sleeve or hollow shaft 16 arranged thereon between the block 14 and the column wall, and the outer end of the sleeve extend through the wall and has an annular rib 17 at its outer end. A bevel gear 18 is keyed to the shaft-between the sleeve or bushing 16, and a similar bushing 19 within the block, and this gear meshes with a bevel gear 20 on a vertical shaft 21, journaled at the axis of the column. The gear 18 is keyed to the shaft 13, and a larger gear 22 is keyed to the sleeve 16. This gear meshes with a gear 23 on a hollow shaft 24, which encircles the shaft 21. The rib 17 and the adjacent end of the sleeve 7 have cooperating clutch teeth for a purpose to be presently described.

A pulley 25 is secured to the upper end of the hollow shaft above the column, and a belt 26 connects the pulley with a pulley .27 on a shaft 28, journaled parallel with the shafts 21 and 24, in a bearing bracket 29, connected with the top plate 4 of the column. The shaft 28 is provided at its lower end with a bevel gear 30, which meshes with a gear 31 on a shaft 32, journaled at ri ht angles to the shaft 28 in a bearing brac et 33, mounted on a sliding arm 34, to slide on the-column 2?.

Referring to Fig. 4, it will be seen that this arm 34 has inwardly inclined flanges 35 and .35", which fit'similarly shaped ribs on the column. This shaft 32 has a worm 37 at its outer end, and the worm meshes with a worm wheel 38 on a shaft 39, arranged at right angles to the shaft 32, andsupported by the sliding arm in a manner to be described.

The cutter 40, to be presently described,

is connected to the shaft 39 by means of gear wheels 41 and 42, the former gear wheel be- 1 ing on the shaft 39, while the latter is an idler for connecting the gear 41 with the cutter 40. The cutter is supported by bearing arms 43 and 44, which are mounted to slide on a guide 45 at the front of the arm guide in an outstanding rib 47 at one end thereof, and the inner end of the shaft is rotatably connected with the arm 43. A hand wheel 48 is connected with the outer end of the shaft, and it will be evident that when the shaft is rotated the arm 43 will be moved toward and from the arm 44. This arm is so mounted in order to permit the removal and replacement of the cutters.

It will be noted from an inspection of Fig..

3 that the cutter has a central opening 49, and each end ofthe opening is enlarged in tapering form as shown at 49.

. The arms 4344 have half center extensions which engage the portions 49 to support the cutters, and these half. center extensions are shaped to fit the enlargements 49, and. each half center extension fits one half of the enlargement. The arms are clamped on the guide 45 by means of bolts and nuts 50, two of the said bolts being provided for each arm. When using a wide faced cutter it is necessary to move also the arm 44, hence this arm is also made movable, and is provided with the clamping bolts 50.

The cutter is fed by means of a hand wheel 51, which is secured to theouter end of a shaft 52, journaled in the upper portion of the arm 34 and having a bevel gear 53, at its inner end, which meshes with a similar gear 54 at the upper end of a sleeve which is threaded onto a vertical shaft 55, supported by the column. It will be evident that when the hand wheel 51 is rotated in the proper direction the arm may be,raised .or lowered with respect to the column.

When using a cutter of larger or smaller diameter than that shown, the gear wheels 41 and 42 are moved backward or forward by means of a hand wheel 56, which is secured to the inner end of a threaded shaft 57, journaled in a substantially rectangular open frame guide 58, extending inwardly from the center of the guide 45. The arin 34 before mentioned, consists of the vertical portion which engages the column, and parallel bars extending from the lower end of the vertical portion to a connection with the outer end of the guide 45 (see Fig. 4), and the guide 58 is between these bars.

A block or carriage 59 is mounted to slide in the guide 58, the inner faces of the side bars of the guide being grooved to receive ribson the block, and the inner end of the shaft 57 has. a threaded engagement'with the carriage or block. The gear wheel 42 is journaled in this guide, which also supports the shaft 39. When a larger size cutter 40 is placed, it will be evident that the gear wheels 41 and 42 must be moved inwardly to provide for the proper meshing of the wheels and cutters.

It will be noted from an inspection of Fig. 4, that provision is made for permitting the detachment of the arm 34 from the column 2*. The flange 35 of the vertical portion of the arm is arranged to swing outward beyond the adjacent rib 36 of the column, and a wedge or gib 60 is arranged on the inner face of the flange.

The bracket 33 which supports the outer end of the shaft 32 is secured to the sliding block or carriage 59, and this bracket has hearings on each side of the worm 37, the arrangement being such that the worm wheel or worm must move with the sliding carriage. Hence the relative position of the gears 41 and 42 is not changed, because they move together, and the connection between the shaft 32 and the'shaft 39 is not inter rupted. The worm 37 is feathered to the shaft 32. v

Preferably ball bearings are arranged between the pulley 25, and the pulley 61 arranged directly above the said pulley 25 and secured to the shaft 21. The upper end of the shaft 21 is supported by a bracket 62, and a ball bearing 63 is arranged between the brackets," and washers 64, which are threaded on to the shaft. The bushing or sleeve 19 will be in practice of bronze pressed into the block 14, which is of cast iron, and into a bearing bracket 65, arising from the base within the column 2.

Ball bearings are arranged between the respective bevel gears 18, 22, 20 and 23, and

between the block 14 and the bearingbracket 65, and a similar bearing is arranged between the bevel gear 23 and a washer 66, which is threaded on to the hollow shaft 24, above the bevel gear.

A support or bed 67 is supported by the base in a manner to be described, and the said bed or support supports a cross slide 68, a lateral slide 69, and a chuck 70. The support or bed 67 is mounted to move vertically on the base, by means of a column 71, which is internally threaded and provided with a screw.

A shaft 72 is journaled in a sleeve bearing 73, secured to the support or bed 67, and this shaft extends into the support or bed, and is provided with a air of bevel or spiral gears 74, which mesli with the screw 75, for turning the said screw to cause the support to be raised'or lowered with respect to the base. I,

It will be noted from an inspection of Fig.

7 6*, and this gib or key is pressed toward the rib by set screws 79. When the gib or key is released the flange 7 6 may be disengaged from the adjacent rib. The chuck is hinged to the lateral slide 69 at the outer side of the chuck as indicated at 80, and the chuck has depending arc-shaped slotted arms 81, which pass through openings in the lateral'slide 69 and into a recess in the cross slide 68, and the outer or concave edges have rack teeth'with which engage pinions 82, se: cured to a shaft 83 journaled parallel with the direction of motion of the lateral slide 69. This shaft also carries a spiral gear 84, which engages a spiral gear 85, secured to a shaft 86, extending at right anglesto the shaft 83, and having its outer end polygonal for engagement by a tool.

It will be evident that when the shaft 86 is turned the chuck ma be raised or lowered through the engagement of the pinions 82 with the teeth of the bars 81. is mounted on the chuck, and this body is circular, having an axial pin 88, which is journaled in the chuck, and the periphery of the body is provided with teeth which are engaged by a worm 89 on a shaft 90, which is journaled in the chuck, and is provided with a hand wheel 91, at its outer end for convenience in turning the same.

It will be evident that when the shaft is rotated by the hand wheel the chuck body will be rotated on the chuck. This shaft is at the hinge upon which the. chuck turns. The body has a flange or rib 92 at its periphery, and clamping blocks 93 are provided for engaging above the rib to hold the chuck body in place. These clamping blocks 93 are secured to the chuck by bolts as shown, and while they do not interfere with the rotation .of the body they preventupward movement thereof, and provide means for clamping the chuck rigidly in any desired position.

Gripping means is provided for gripping the work. The said means comprises two jaws 94, which have ratchet teeth on their under faces cooperating with similar teeth on the chuck body, and each jaw has in addition a hook 95 at each end, which engages beneath the squared portion of the body to prevent upward movement of the jaws. The ratchet teeth of the jaws and the body are shaped to prevent outward movement of the The body 87 jaws away from each other, and a series of set screws 96 is threaded through each jaw.

The chuck body above the circular portion has a squared or flat portion 87, and the gripping means is mounted on this flat portion. A lead screw 97 is journaled on the cross slide 68, and this stationary lead screw has a pinion 98, which meshes with a spiral gear 99 on a shaft lOO, journaled at an angle to the shaft 97 and having its outer end polygonal for convenience in rotating the same.

This shaft orlead screw 97 is a feeding mechanism for the lateral slide 69, and it will be noted from an inspection of Fig. 9 that the nut 155 through which the lead screw is threaded carries the spiral gear 98, and on the nut on each side of the spiral gear, is arranged a collar 156. The lead screw 97 is mounted on the lateral slide, and it will be evident that when the shaft 100 is rotated the nut 155 will be rotated and the lateral slide will be moved together with the lead screw transversely of the cross slide.

The cross slide 68 is fed by a shaft 101 suitably connected with the slide to move the same when the shaft is rotated. The pulley 61 is belted to a series of pulleys 102, 103, 103*, 1 0 1, 105 and 106 by means of a belt in a manner to be later described, the said pulleys being mounted in a manner to be also later described.

The column 2 is provided with a radial extension or guide 107, and a carriage 108 is mounted to move laterally on the extension or guide. The extension or guide has laterally extending ribs 109 at its front, and these ribs engage in grooves 110 and 110f in the carriage. The groove 110 is of larger diameter than the rib which engages it, anda gib or key 111 is arranged in the groove and is connected to the carriage by a connection 112, to be later described.

A shaft or spindle 113 is journaled in a hexagonal slide 114, which is mounted to move vertically in a guide 115, supported at the center of the carriage and secured thereto. The guide 115 has laterally extending ears 116, which lap upon the outer face of the carriage and are bolted thereto. The spindle has a chuck or tool holding socket 117, and the chuck holds cutting tools, not shown. The tools may be made to describe a circle by means of a radius arm 118, and a slide block 1191, which is connected to the spindle slide 114, by means of a pin 120.

The pin 120 engages a threaded opening in the adjacent surface of the slide, and the block is moved in the radius arm, by means of a threaded rod 121, which is journaled in the arm and has a threaded engagement with the block. When the radius arm is turned or rotated, the block will describe a. circle or an arc of a circle which canbe varied from naught to any desired radius by changing the position of the blockwith respect to the scale 121-that is, by moving the block in or out with respect to the axis of rotation of the radius arm.

The radius arm is operated by means of a worm wheel- 122, and a worm 123 of a worm shaft 124 mounted in the chambered guide 107. The worm shaft has a hand wheel 125 at its outer end for convenience in manipulating the same. The radius-arm as shown in Fig. lfmay be rotated on its spindle 126 to which the worm wheel 122 is secured. Ihis spindle is journaled in the guide 107, and the shaft 124 extends out of the guide at the outer end thereof. The outer end of the threaded rod 121 iS polygnal for engagement by a tool to rotate the same, and the rod is held from longitudinal movement in the radius arm by collars 127, each of which is held in adjusted position by meansof a set screw.

When the hand-wheel 125 is turned the radius arm is rotated and the axis of connection between the block carried by the radius arm and the spindle bearing describes a circle or an arc of'a circle and the point of the cutter which is held in a chuck 117' will describe the same circle or are of acircle,

the rotating block causing the spindle to be raised and lowered relative to the carriage, and causing the carriage to be moved back and forth on its guideway so that the circular movement is imparted to the point of the cutter as above stated.

When it is desired to use the spindle 113 without the radius arm as an ordinary millof two portions which are threaded in opposite directions, and the openings of the nut sections are similarly threaded so that when the rod is ,t-urned in one direction, the sections will be moved toward each other into engagement with the threaded rod 121, while when the bolt is turned in the opposite directioh the sections will be moved apart to release the nut fromthe rod. When the radius arm is disengaged, the spindle is moved vertically by means of a hand wheel 129, connected to a shaft 130, which is journaled in bearings 151, and the shaft has a pinion 152, which meshes-with the teeth of a rack 153, on the slide 114 of the spindle.

As shown in Fig. 8, the belt 131 is passed around the pulley 61, one run. passing over the pulleys 103 and 104, then over the arm a the pulley spindle.

102 and back over the pulley 105, from thence over-the pulleys 106 and 103 to the arm 61. The pulleys 103104-105 and 106 are in alinement, and in a line parallel with the line through the axis of the pulleys 102 and 61.. The arrangement is such that the pulleys 61 and 102 are almost completely encircled by the belt, thus insuring a firm grip of the same on the pulleys, and this grip is maintained whatever the position of the pulleys 102, 104 and 1.05 with respect to the others. It will be understood that these three pulleys travel with the carriage. The mounting of these pulleys is shown in Fig. 6, wherein it will be noted that the 105, which is an idler, together wit the pulleys 103, 103*,104, 105 and 106 is supported by ball bearings above and below the pulley,'the balls being arranged in races and held in place by nuts 132 threaded on The spindleconsists' of two portions 133 and 133 of unequal diameter and the ends of the spindle are threaded. One of these threaded ends engages a threaded opening in a bearing plate 135, which is secured to the carriage by bolts 134, and the other portion is engaged by .the nuts. All of the pulleys just mentioned, as also the pulleys 61 and 102, have marginal flanges 136 at their lower ends for preventing the downward movement of the belt.

The operation of the improved machine is as follows :-The shaft 6 being driven, when the clutch lever 9 is moved outwardly at its upper end the sleeve '7 will be connected to the shaft 13 and through the bevel gear connection 1820 the shaft 21 will be driven, thus driving the shafts 28, 32 and .the cutter 40. When the lever 9 is moved in the opposite direction, that is, its upper end inward, the clutch teeth of the sleeve 7 will engage with the teeth of the rib 17 and the hollow shaft 16 will be connected to the hollow shaft 24 through the bevel gear connection 2223. Thus either the pulley 25 or the pulley 61 may be connected with the driving shaft 6, but both cannot be connected at the same time. 7

When it is desired that the point of the cutting tool held in the chuck 117 of the spindle 113 describe a circle, the sliding block is connected to the radius arm, while when it is desired to use the mechanism on the guide 107 for machining, the block is disconnected from the radius arm by means of the split nut and the spindle is fed by the hand wheel 129.

The column 2 will rotate about its axis to bring either the cutter 40 or the spindle 113 above the work supporting table or chuck.

ulley moved vertically or it may be moved toward or from the column. The cutter may be moved vertically with respect to the column and cutters 40 of difierent size may be used.

It will be noted from an inspection of Figs. 3 and 7 that the cutter 40 has teeth on its periphery for engagement by the ad jacent gear wheel 42 to drive the cutter while at the same time it has cutting edges 137. In addition it has peripheral cutting edges 138, the said edges being parallel with the axis of the cutter. The shaft 13 drives the spindle through the bevel gear connection 18-20, the shaft 21, the pulley 61 and the belt 131. The hollow shaft drives the cutter 40 through the bevel gear connection 22 and 23, and the belt 26.

It will be understood that the ribs 60', 78, 111 and 158 are all held in place in the same manner, that is, by means of a cap bolt, and set screws on each sideof the bolt to permit the rib to be adjusted. This connection is indicated at 60 in Fig. 4, at 79 in Fig. 5, at 112 in Fig. 6, and at 159 in Fig. 9. It will be noted that each of the gibs 60, 78, 111 and 158 is provided with bearing faces at an angle to each other and at varying angles with respect to the back or outer face of' the rib, and since each rib is held in place by a. cap bolt with a series of set screws at each edge of the rib, it will be evident that each rib or key may be adjusted to take up or compensate for wear on the rib or on the side of the element to which the rib is connected. As for instance, in Fig. 5, the rib 76 by. turning the cap bolt or bolts-in the proper direction;

When the set screws of each side are turned into contact with the gib the gib is held in absolutely true position. It will be understood that when the rib is of any length the set screws at each side of the cap bolt orbolts are several in number, extending from one end of the gib to the other, and with a long gib several bolts. would be used.

When the set screws are tightened at each.- edge of the gib, the gib is forced against theface of the undercut rib and also against the side of the guide, thus taking up the wear on the front of the guide and upon the side. The bolts are then tightened to prevent the set screws from becoming loosened by vibration.

The improved machine is especially designed for making dies for forging machines such as drop-hammer presses and up-settmg machines, and also for making molds for glass or rubber goods and the like, and

mechanism is provlded for permitting every 1 operation upon these molds or die blocks' to be done. Either the cutter 40 of the spindle 113 may be brought into position over the table or bed 67 and this table or bed may be a support having a lateral arm, a carriage adjusted to bring the articles into position to be operated on by the cutter or by a tool on the spindle.

In Fig. 1 the distance from the center of the pin 120 to the center of the trunnion 126 is about 5''. The distance from the outer. side of the slide 108 to the end of the arm 107 is about 19;. Therefore, when the block 119 is at the outer end of the radius arm and the radius arm is turned around by means of the hand wheel 125, shaft 124, worm gear 122123, the slide 108 will travel to the outer end of the arm 10?. The sliding block in the radius arm is never discon-= nected when using the hand wheel 125. However, when I wish to use the hand wheel 129 and the mechanism connected therewith, the radius arm is broughtto a vertical position, as shown in Fig. 6, the block in the radius arm is disconnected, and the spindle is raised and lowered by means of the hand wheel 129. This length of travel is limited to the length of the radius arm, butthe said length is all that will be necessary, for the work support may be raised and lowered to accommodate any work placed on the machine.

I claim 1. In a machine of the character specified,

having guided movement on the arm toward and from the support, a spindle having a chuck at its lower end, a radius arm journaled on the lateral arm and having a guide extending radially thereof, a block slidable in the guide, means for moving the block and for holding it in adjusted position, said means being releasable from the block, a bearing for the spindle, a connection between the bearing and the block, means for rotating the radlus arm, a support below the lateral arm, said support being mounted for movement toward and from the firstnamed'support and toward and from the lateral arm, a chuck mounted for movement transversely of the support, and means on the chuck for holdingthe work.

2. In a machine of the character specified,

a support having a lateral arm, a carriage having guided movement on the arm toward and-from the support, a spindle having a chuck at its lower end, a radius arm journaled on the lateral arm and having a radial guide, a block slidable. in the guide, means for moving the block and holding it in adjusted po'sltion, said meansbeing releasable from the block, a bearing for the spindle, a connection between the bearing and the block, and means for rotating the radius arm.

3. In a machine of the character specified, a column having a lateral'guide, a carriage movable on the guide toward and from the column, means for moving the carriage, a spindle journaled in the carriage, means for driving the spindle, a slide in which -the spindle is journaled, a radius arm pivoted to the guide, means for rotating the same, a. block having guided movement in the arm, and means for movin the block and holding it in adjusted pos tion, the block being detachable from the said moving means.

4. In a machine of the character-specified, a column havinga lateral guide, a carriage movable on the guide toward and from the column, means for moving the carriage, a spindle journaled in the carriage, means for driving the spindle, -a slide in which the spindle is journaled, a radius arm pivoted to the guide, means for rotating the arm, a block having guided movement in the arm,

means on the radius arm for moving the block with respect thereto and for holding the block in adjusted position, said means being detachable from the block, and manually operated means for moving the spindle vertically when detached from the radius arm.

5. In a machine of the character specified, a column having a lateral guide, a carriage movable on the guide toward and from the column, .means for moving the carriage, a spindle journaled in the carriage, means for driving the spindle, a slide in which the spindle is journaled, a radius arm pivoted to the guide, means for rotating the arm, a block having guided movement in the arm, and means on the radius arm for moving the block and holding it inadjusted position.

6. In a die sinking machine, a carriage having a vertical slide, a bearing movable in the slide, a spindle for the bearing, a support upon which the carriage is movable laterally, means for moving thecarriage,

a radius arm pivoted to the support and having a guideway, a block movable in the guideway, a threaded rod journaled longitudinally of the guideway, a detachable connection between the block and the rod for moving the block when the rod is rotated, and a connection between the block and the vbearing for the spindle,

7. In a die sinking machine, the combination with the spindle, the bearing for the spindle in which the spindle is journaled, a carriage for supporting the bearing, a radius arm pivoted to the support, and having a guideway, a block movable in the guideway, means for moving the block, said means being detachable from the block, a connection between the block and the bearing, and meansfor moving the spindle ver-- tically, 8. In a die sinking machine, the combination with the spindle, the bearing for the ,spindle in which the spindle is journaled,

a carriage for supporting the bearing, a radius arm pivoted to the support, and havmg a guideway, a block movable in the guideway, means for moving the block, said the block, and a connection between the block and the spindle for constraining the spindle to move with the block while 'free to rotate with respect thereto.

10. In a die sinking machine, the combination with the column, consisting of upper and lower sections, the upper section being rotatable on the lower section, and means for clamping the sections together a bed for a chuck movable vertically with respect to the column, a slide mounted on the bed to move radially toward and from the column, said column having an opening at the lower section for permitting the inner end of the slide to enter the column, and a laterally moving slide mounted on the radial slide for lateral movement with respect thereto, said lateral slide carrying a work holding chuck, and tool holding supports connected with the upper section of the column.

11. In a die sinking machine, a column for supporting the tools, a bed adjacentito the column, a slide mounted to move on the bed toward and from the column, and

12. In a die sinking machine, the combination with the column having a plurality of tool supporting means, of an operating shaft? for one of the said means, a hollow shaft journaled on the operating shaft for operating the-other of the saidmeans, a driving shaft, a connecting shaft in alinement therewith and having a driving connection with the first-named shaft, a hollow shaft on the connectin shaft and having a driving connection wlth the first named hollow shaft, a sleeve feathered on the driving shaft and journaled on the connecting shaft, means for moving the sleeve in opposite directions, and clutch mechanism in connection with the sleeve and the connecting shaft and in connection with the sleeve and the last-named hollow shaft and operated by the movement of the sleeve in opposite direetions.

13. In combination, a driving shaft, a driven shaft in'alinement therewith, a sleeve feathered on the driving shaft and jour- 75 .and having a releasable connection with l naled on the driven shaft, ahollow shaft on the driven shaft, means for moving the sleeve in opposite directions, and clutch mechanism in connection with the sleeve, the driven shaft and the hollow shaft and controlled by the movement of the sleeve in opposite directions. 1 Y

14. In a machine of the character described, a supportconstituting a guideway, a carriage movable along the same, a spindle adapted to be provided with a working tool, said spindle being journaled in thecarriage and adapted tobe moved in an, endwise direction relative thereto, means for rotating the spindle, and means, operable from a single point for simultaneously shifting the spindle in an endwise direction and for shifting the carriage soas to cause the working end of the spindle to describe an arc pf a' clrcle.

15. In a machine such as described, a carriage, a support constituting a' guideway along .which'said carriage may move, a spindle journaled in the carriage and adapted to be provided with a working tool, means for rotating the spindle, a rotary member carried by the support and operativ'ely connected to the spindle, and means for turning said member so as to cause the working end of the spindle to describe an arc of a circle.

' 16. In a machine of .the character described, a carriage, a support constituting a guide way along which said carriage is adapted to be moved, a spindle adapted to be provided with a' working tool, said spindle being journaled'in the carriage and movable in an endwise direction relative thereto, andmeans carried by the supportand adapted to be operatively connected to the spindle for simultaneously shifting the spindle relative to the carriage and for shifting the carriage along the guideway so as tocause the working end of the spindle to describe an arc of a circle.

17. In a machine of the character described, asupport constituting a guideway, a carriage morable along the same, a spindle adapted to be provided with a working-tool, said spindle being journaled in the car- 'riage and adapted to be moved in an endwise direction relative thereto, a rotary member carried by the support, means whereby said member maybe operatively connected to the spindle, means for rotating end of the spindle to describe an arc of a circle, and means whereby the radius of the described are may be varied.

18. In a machine of the character de scribed, a carriage, a support therefor constituting a guideway along which the carriage is adapted to be moved, a spindle scribed, a carriage, a support therefor constituting a guideway along which the carriage is adapted to be moved, a spindle journaled in the carriage and adapted to be given an endwise movement relative thereto, a rotary member carried by the support, means for operatively connecting and disconnecting said member and spindle, means I for rotating said member so as to cause the working end of the spindle to describe an arc of a circle, and means for varying the radius of the described are.

20. In a machine of the character described, a carriage, a support therefor constituting a guideway along which the carriage is adapted to be moved, a spindle and a bearing therefor carried by the carriage, means for rotating the spindle, said spindle having a working end adapted to be provided with a tool, a rotary member carried by said support and having a connection with the bearing for the spindle, and means forturn'ing said member whereby the working end of the spindle may be turned 100 ed to the spindle, and means for turning said device.

22. In a machine of the character described, a carriage, a support constituting a guideway along which. said carriage is adapted to be moved, a spindle journaled in said carriage, means for rotating the spindle, a rotary arm carried by the support and having a member adjustable lengthwise thereof toward and from its axis of rotation,said member adapted to be operatively connected to and disconnected from the spindle, and means for rotating said arm.

23. In a machine of the character described, a carriage, a support constituting a guideway along which said carriage is adapted to be moved, a spindle and a bear- .ing therefor supported by said carriage and adapted to be provided with a working tool, 1

a radius arm rotatably supported by said support and having a member carried thereby and movable toward and from its axis of rotation, means whereby said member may be connected to the spindle bearing, and means for rotatin said arm.

24:. In a machine of the character described, a. carriage, a support constituting a said member toward and from its aXis of ro-- tation, and means for rotating the arm.

25. In a machine of the character described, a support constituting a guideway, a carriage movable along said guldewa-y, a spindle journaled in said carriage and movable in an endwise direction, means for rotating the spindle, an arm rotatably supported by the support and having a member adapted to be operatively connected with the spindle, means for rotating the arm and means for connecting and disconnecting said member and the spindle.

26. In a machine of the character described, a carriage, a support constituting a guideway along which said carriage may be moved, a spindle journaled in said carriage, means for rotating the same, an arm rotatably supported by said support, a member adapted to be operatively connected with the spindle and carried by said arm, means for adjusting said member toward and from its axis of rotation, means for rotating the arm whereby the end of the spindle will describe the arc of acircle, and means for connecting and disconnecting the said member and the spindle.

27. In a machine of the character described, a carriage, a support constituting a guideway along which said carriage is adapted to be moved, a spindle rotatably supported by said carriage, and means for rotating the spindle, said spindle being movable in the "direction of its length and at right angles to the direction of movement of the carriage, a rotary arm carried by the support and adapted to be operatively connected to the spindle, and means for turning said arm.

28. In a machine of the character described, a support constituting a guideway, a member movable along said support, a

spindle and bearing carried by said member and movable in a direction at right angles to the movement of said member on the support, an arm rotatably supported by said support andadapted to be connected to said bearing, and means for rotating the arm.

29, In a machine of the character described, a support constituting a guideway,

a member movable along said support, a

,spindleand' bearing carried by said member and movable in a direction at right angles to the movement of said member on the support, an arm rotatably supported by said support and adaptable to be connected to said bearing, means for rotating .thearm 'to cause the end of the spindle to describe an arc of a circle and means-for varying the 30. In a machine of the character de- -radius of the are which is thus described.

scribed,a support constituting a guideway,

'a member movable along said support, a'

spindle and bearing carried by said member and movable in a direction at right angles to the movement of said member on the support, an arm rotatably supported by said support and adapted to be connected to said bearing, means for rotating the arm to cause the end of the spindle to describe an arc of a circle, means for varying the radius of the described arc, and means for disconnecting said device from the bearing.

31. In a machine of the character de; scribed, a support constituting a guideway, a member movable along said support, a spindle carried by said member and movable in a direction at right angles to the movement of said member on the support, an arm rotatably supported by said support and adapted to be operatively connected to and disconnected from the spindle, means for rotating the arm to cause the end of the spindle to describe an arc of a circle, and means for raising and lowering the spindle when disconnected from the arm.

32. In a machine of the character deguideway, a carriage movable lengthwise of said support a vertical spindle having a bearing carried by said carriage, means for rotating the spindle,"an arm rotatably sup 3 ported by said support, a member movable lengthwise of the arm, and having a detachable connection with said bearing, and means for raising and lowering the spindle when said member is detached from the spmdle.

' ALBERT Witnesses:

R. J. FRANCIS, J. F. MCKENNA.

DESOLAI! MER 1,258,975.Albert Arthur, Cleveland, Ohio. DIE-SINKING MACHINE. Patent'dated March 12, 1918. Disclaimer filed November 17, 1933, by the patentee.

Hereby disclaims:

(a) From claim 15 any machine in which the spindle is not moved in a plane during the operation of the machine, and in which the working end of the spindle is not provided with means for supporting a working tool the end of which is moved in an arc of a circle.

(6) From claim 20 any machine in which the axis of the spindle is not maintained in a single plane during operation of the machine.

(0) From claim 21 any machine in which the axis of the spindle is not moved in a plane during the operation of, the machine, and in which the spindle does not have a working end provided with means for attaching the working tool thereto, the end of which tool is moved in the arc of a circle during operation of the machine.

[Ofiict'al Gazette December 12, 1.988.]

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