USRE14779E - Assiotos - Google Patents

Description

'c. F. SCHULTIS.

MACHINE FOR FORMING METAL BODIES.

APPLICATIONJILED JULY 25. 1919.

I iieissued Dec. 23, 1919.

, 5 SHEETS-SHEET I. n In crn m m ml 1111/ 19 15 i 1% 1 5 *1; E 1 I 4+ 40 f lhwentor 1 CHARLES F Scams, 22:5

(Ittomeg 1 c F. scrlumsh, mcuma roa ronmmc mam aomes. APPLICATION FILED JULY 26, I919. v Reissued Dec. 23, 1919. 14,779,

5 SHEETSSHEET 2- CHARLES F5:m r15.

C. F. SCHULTIS. MACHINE FOR FORMING METAL BODIESl APPLICATION FILED J'ULVZE. I919.

' Reissued Dee.23,1919. 14,779.

' IIIIIIIIIIIIIIIIII/I/I/Il/lII/IIIIIlI/II I ZSnven'tOr Ema: 2's 2? 5222mm T15 Gttorneg C. F..SCHULTIS.

MACHINE FOR FORMING "HAL BODIES.

7 APPLICATION FILED :unzs. m9.

Reissued Dec. 23,1919. I.

. 5 SHEEI 'S SHEET 4.

Cltto rneg Original up. 1,802,228, dated re erence being 4 I drawings.

, To alt w homet mcy concern:

' especia UNITED STAftlEi-IiElENT OFFICE. I 1

I CHARLES IF. SCHULTIS, OFCLEVELAND, onio, assmnon, BY MESNE ASSIGNMENTS, To'

THE s'mmmnn rnn'rscourm', or CLEVELAND, omo, A CORPORATION oF-oHIo.

I .Be it known that I, CHARLES -a,..citizen' of the United States, residin'g 'at Cleveland, in the county of Cuyahoga and State of Ohio, have invented a certain new and useful Improvement in Machines for Forming Metal Bodies, of which the followis a' full, clear, andexact description, had to the" accompanying .formin metal bodies, the invention, being fiy suitable for embodiment in a spring "cambering machine. ,Because of its pecul u. adaptability to'this class of machines, the same will be shown and described automatic in its operation, after apiece of work has been placed in the. machine and herein in such connection. Itwill be under-' ,stood however, that I do not limit the in- ,ventionto the details of construction shown herein, which I have selected merely as'illustrative of one embodiment of my invention, nor its use to that'of a springcamberlng ma-- chine, except as required by the terms of the annexed claims.- The principal objects of the inventionare to providea machine of the aforesaid class which may be conveniently operated by one attendant; which is practically continuous in its operation of forming metal bodies, such as springs;- and which is practically the .attendant has set the same in operation,

the machine thereafter acting to'form the metal body and deliver it from the machine,

complete in so far as the forming operation is concerned.

ing a plurality ofobject-supporting faces or ranged to cooperate with the faces or portions, and wherein the reciprocation-ofthe head rotates the table to present the various faces of the table successivelyinto operative relation to the head.

; j Further objects are toprovide the machine with means for clamping objects to the faces or work-supporting portions of the table, which clamping devices are actuated substantially coincidentwith and by the depressionof the-headgof the machine; to provide furthenmeans for'fre'leasing'the clamping devices at a given phase in the rotation of F. Senom'rs,

mechanism for operating the clamping de- A n as, 1919, Serial m. 64,684,111 December reissue filed July 26,1919. Serial No. 813,633.

2, 1915. Application for the table; and to provide an-ejec'ting-apparatus or conveyer for removing the formed objects from the machine, which ejecting apparatus or conveyer is; preferably actuated by therotation of the table.

A further object comprehended by my in-. vention is the production of a templet'that is made up of a flexible member, the contour of which may bealtered at will, and a series of interchangeable bearing blocks for attachment thereto; In the case of forming longitudinal bodies; suchas vehicle springs,

the aforesaid bearing blocks are provided with extensions for-engagement with the lateral edges of the body, thereby to 'straighten the same in' one-plane while imparting to it the. desired shape in'a, plane at substantially right angles to the former plane.

With the foregoing objects in view, and' others which will become apparent, as this description proceeds, the invention may be defined' as consisting of the combinations of elements set forth in the claims annexed hereto, and illustratedin the accompanying drawings, forming a part hereof.

' In the drawings! a F'gurc 1 represents 'a sectional front elevation of aspring cambering'and tempering, machine constructed 1n accordance with my invention;

tionof the machine;

' Fig. 2 is a left hand sectional side eleva- Fig. 3 is a fragmentary right hand end elevation thereof, certain parts of the ma chine being broken away to more {clearly disclose its construction; I I

Figs. 4 and 5 are details in perspective of the parts associated with the left-hand end of therotatable table andconstituting the I vices, the views including the actuating member which is carried by the head of the machine;

Fig. 6 is asectional detail on the line 6*6 of, Fig. 1 and. looking in the direction of the arrows, the view showingthe parts illus Fig. 8 is a section on the line 8 8 of Fig. I

1 and looking in the direction of the arrows;

Fig. 9 is a sectional detail on the line 9-9 of Fig. 8;

Fig. 10 1s a detail in perspective of' one of the clamping devices;

- of bearing block having extensions for en- 7 Figs. 11 and 12 are a front elevation,-

Fig. 16 is a si ilar View of another form gaging the lateral edges of the work and straightening the same; and

. Fig. 17 is a fragmentary longitudinal. section through the templet.

Taking up a detailed description of the invention by the use of reference characters, A represents a tank that is substantially rectangular in plan and having a rearward extension A. The bottom wall a of the extension is inclined upwardly from front to rear, where it joins a shallow vertical wall a.

Within each end of the tank A there is a frame 1, having a base 2, and which may be secured to the end wall of the tank in any suitable manner, as by means of rivets 3. The upper ends of the frame 1 are connected by asubstantia'l beam 5, each end of the beam being connectEd to the adjacent frame by a bolt 6. Supported by the beam 5, and spaced inward from each end thereof, is a post 7, the lower end, of each post being shown in dotted line in Fig. 1,, as re- I duced at 8, and having a nut 9 applied to it,

where it projects; below the beam 5. Flanges 10 are carried by the upper ends ofthe posts, and to these flanges is secured, as by bolts 11, a top plate 12; It will be seen'upon referring to Figs. 2 and 3, that the upper end of the rear extension A of the tank is supported upon ledges 15 of standards 16. The upper portion of the frame work comprising the foregoing, parts 1 to 12 is braced by stringers 17 which, are fastened at their lower ends to thestandards 16 and at their upper ends by means ofangle clips 18 and bolts 19 to the top plate 12.

Suspe (led from the central portion of the top'p ate 12, and secured thereto by bolts 20, is a pressure fluid cylinder 21. This cylinder contains a piston 22, the rod 23 whereof extends through a packing gland 23 in the cylinder head 24 and hassecured to its lowerend a flanged fitting 25.

i What I have referred to hereinbefore as the head of the machine, is shown M126,

and this head is rigidlysecured to the fitting 25. Near each of its ends, the head 26 is provided with a sleeve 27 'that is reciprocable upon one of the posts 7.

I have already referred to the pressure fluid cylinder 21. I As steam is found a suitable medium for operating my machine,

steam is referred to as the pressure fluidthroughout the following description, although it will-be understood that this does not limit the invention to the use of this particular operating fluid. have shown more or less conveniently, t e cylinder 21 as provided with a steam 'chest 30 within: I which there is housed a sliding; D-valve 31 that is adapted to be operated means of a rod 32, havingv an operating handle 33 at its lower end. The rod is guided through a bracket 34 that'is carried by the right hand post 7, and below this bracket, a stop 35 is 'secured to the rod. A second bracket 36 is supported. by and extends in substantially the same direction as the bracket 34 from the aforesaid'post 7 the latter bracket terminating ad acent the piston rod 23,, and

having pivoted to its end,a rocker arih 37. .A finger 38, adapted for cooperation with the left hand end of the rocker arm 37; is

secured to the pistonrod above the rocker arm. The opposite end of the rocker arm is adapted for cooperation with the stop 35,

themovement of the rocker arm by the stop 35 being limited by a stationary stop 39,

that is carried by the bracket 36. Steam may be introduced into the; steam chest 30 through a supply pipe 40, the steam having access to the lower portion of the cylinder through a port 41, and to the upper ,por-' 1 tion thereof through a port 42. An exhaust .port 43 communicates with the steam chest within the confines of the D-valve 31.

From the above description it will be seen that, when the operator desires to depress the head of the machine, he may grasp the operating handle 33 and ull downward on the rod' 32 until the D-va ve 31 assumes its lowest position when the stop 35 will be in engagement with the right hand end of the rocker arm 37. By reason of the position thus given the D-valve 31, steam me be admitted from the steam chest throu' the port 42, to the uppelii end of the cylin or 21, and, acting upon e upper end of'the' piston 22 will force the same downward to depress the head 26, through the intervention of the'piston rod 23. When the head 26 has reached the lower limit "of its movement the finger 38 will engagethe left hand end of the rocker arm 37 and de ress the same, elevating the opposite en of the rocker arm, and consequently lifting the stop 35 and rod 32 to return the D-valve to its original or. upper position. Thereupon steam is admittedto the lower end of the cylinder through the port 41, and the piston 22 is elevated to the position shown in the drawing, the steamin the-upper end ofthe cylinder escaping through the port 42, the interior of the D.-valve, and the exhaust port 43. The'upward movementof thepis- M1122 is limited by an abutment 44 which depends from the head of the cylinder and is surrounded by a sprin 4A? which, when relaxed, extends below t e abutment and serves to gradually'retard the, speed of the piston and cushion its blow against the abutment. The parts will. remain in this posi tion until the operator again manually operates the valve 31.

It is obvious that pedal-operated mecha-' ni'sm may be connected to the rod 32, so that the attendant may actuate the valve 31 by foot power, if it is so desired. Such a modification or addition'is so obvious, however, that it is deemed unnecessary to illustrate it.

45 represents a rotatable table, shown herein as provided with four work-supporting faces or portions 16, such faces or portions being spaced at equal distances apart about the table. Grudgeons 47 extend from the ends of the table and are journaled in bosses 48 of the end frames 1. Fixed-to each of its ends and forminga part of the table 45 is a disk 50 within which are journaled the reduced ends of shafts 51. that are located one within the space between adjacent faces 100f the table.

Carried by each of the shafts 51 is a plurality of clamping devices comprising each a bifurcated head 52 and a threaded shank 53, the head and shank being disposed at substantially right angles to each other. The shaft 51 isprovided 'with an aperture for the reception ofthe shank'of each of the clamping devices, the shank being adjustably locked or-secured within the aperture of the shaft by nuts 54, locatedon' opposite sides of ":the shaft. A bearing plate 55 is bifurcated ead 52- of each clamping device, for a purpose which will be explained hereinafter.

The reduced left hand ends of the shafts ex'tend through and beyond the corresponding disk 50, and have secured to them cams 5'7 (see Figs. 4 to 7). A disk 58'is loosely j iurnaledupon the left hand gudgeon 47' of the table adjacent the cams 57 and said disk is provided with a lateral circumferential flange 59 wherewith the cams 57 are adapted to cooperate. The disk has also a peripheral log 60 which projects toward the front of the machinef Adapted to engage this .lug and oscillate the disk 58 is a rod 61 ,which is adjustably carried by an extension 62 pf thehead 26. .63 isv a stationary disk wln'ch is locate'd in juxtaposition to the disk 58, and is fixed, in any suitable manner, to

the adjacent portion of theframe1, as by means of a key 64 (Figs. 1 and that occupies opposed notches in the boss 48 of lpivotedbetween the forks of the,

the frame,and in the hub portion 65 of the stationary disk 63. The stationary disk is provided with a concentric slot 66 through which projects a pin .67, from the movable disk58.

Keyed, or'otherwise secured to the; right hand gudgeon 47 of the table 45 is a-fourtoothed ratchet 70 wherewith is adapted tocoiiperate a pawl '71, actuated byfa spring 72. The pawl and spring are carried by a segmental plate 73 that is journaled upon the gudgeon of the. table next to the ratchet 70. This plate is connected to the adjacent end of the head 26 of the machine, through a link 74. Therefore,'upon each reciproca- "tion ofthe head 26, the late will be oscillated to carry the pawl 0f the ratchet 70 to the next adjacent tooth, .and rotate the ratchet, and consequently the table, through 90.

is secured to the gudgeon 47 between the 1 from one tooth A sprocket. wheel 75 segmental plate 73 and the adjacent disk 50. The purpose of this sprocket wheel will be explained presentl v The left hand disk 50 is providedywith four peri heral. teeth 76 forcooperation with the reeend of a detent pawl 77 that is pivoted at its upper end to a bracket 78, carried by the beam 5. The pawl is moved towardthe disk by a spring 79 that sur-- rounds the screw 80 which passes through an opening in the pawl and is threaded into the rear side of the beam 5, the spring 79 being confined within a washer 81, that bears against the head of thelscrew, and the opposed surface of thepawl.

The ends of the shaft 82 are journaled within the upper ends of the standards 16.

and immediately'inside the righthand stand ard, the shaft has secured to it a sprocket wheel 83 over which a sprocket chain 84 passes, the chain embracing alsothe previously mentioned sprocket wheel 75 that is carried by the right hand gudgeon of the i table. Between the sprocket .wheel 83 and theopposite endof'the shaft 82, there are distributed along the shaft, sprocket wheels i 85. the shaft in any suitable manner. A shaft 86 is located within the bottom of the tank A and has its ends journale' within bosses 87 of the frames 1. Thissha t is also equipped with sprocket wheels 88, corresponding in number, pitch and spacing to the sprocket wheels 85 of the shaft 82. (lhains 90 are entrained about the corresponding sprocket wheels 85 and 88 of the shafts 82 and 86,

respectively, and these chains contain links haying extensions 91, the chains thereby constituting conveyers for articles that are."

dropped from the table into the lower por t10n of the tank. and deflect toward the chains or conveyors by the inclined plate 92 that extends inward and downward from I v the front wall of the tank.-

These sprocket wheels are fastened to plaine -The upper endso flange 9 It will be observed that the cross section of the table 45 adjacent each bf its portions- 46 is dove-tail in shape. This enables a templet which I will now describe to be con-- venlently clamped to each face of the table. Each temp'let is built u n a base 95 having its underneath sur ace grooved longi tudinally, and undercut, at the rear to form an overhanging rail 96 while the extension formed .on the opposite side of the base is at substantially right angles to the top wall ofthe roove and constitutes a straight This-flange has a number of threaded openings for the reception of set screws 9 8'that are provided with tapered or pointed ends. Therefore, when the base is I placed upon oneofthe faces of the table -'site side thereof, and securely connects the base, to the table.

is connected to the base by a screw 101.

- threaded into the upper side of the base and are 35 The front and rear sides of the base are rabbeted along their upper edges, as shown at 99. Each end is straddledby a U-shaped stirrup 100, each parallel branch of whick bolt 102 extends across the stirrup and through IFS parallel branches, adjacent its 'A series of jack screws 103 are spaced at convenient distances apart longitudinally thereof, and these jack screws have swiveled to their upper ends, a flexible late 104. 'At substantially the center of t'e base, an index post 105, having a squared portion 120 above and below which the posit is threaded, is screwed into the base, and constitutes in effect, a jack' screw for'the adjacent portion of the plate 104. A nut 106 is applied to the threads of the post 105 above it'saforesaid squared portion for a urpose which will resently be exi the jack screws are formed with tapered heads 108, as clearly shown in Fig. 17. This forms a permanent but variable connection between the plate and each screw which permits, by

reason of the elongation of the slot, a longitudinal -movement. of the plate'galong the head of thescrew;

This construction allows the plate 104 to be bent into any shape desired by, the adjustment of the jack screws. Forunsl'ance, the ends of the plate may be drawn downward to a plane belowthe portions sustained by the next adjacent jack screws, while the center of the plate may remain in the position shown, thereby rendering the plate of a compound curvature.

Adapted to be distributed alon the plate 104, are a number of bearing bloc s 110, the bottom sides of which correspond. in shape to the bottom of the base 95 previously described. As a consequence thereof, each block has an undercut tooth 11] at :one end, and a straight tooth 112 at the other. The

latter tooth has a threaded opening 113' for the reception of a set screw'114 having a tapered end, as shown at 115. The bearing surface of each block is curved transversely,

as shown at 116, and between the ends thereof, the block is cut away at 117 for a reason that will be set forth in the descrip tion of the tempering operation.

In Fig. 16 there is shown a bearing block which differs from the one above described by having tapered extensions 118, that rise from the outer sides of the bearing surface 119. This form of block-is designated 110'.

The blocks 110 and 110 may be distributed along the plate 101 in positions to suit the requirements of the particular piece of work that is to be performed, and clamped thereto by the set screws 114, the screws enterin beneath the adjacent edge of the plate an forming a connection therewith, similar to that formed by the undercut tooth 111 of the opposite end of the bearing block. This connection enables any one of the blocks to be lemoved entirely independently of the others by simply unscrewing the screw until the point is withdrawn from beneath the plate, when the block may be tilted upward and backward and its undercut toot-h released from the rear edge of the plate. As previously mentioned thi extensions 118 of the blocks110" are for enga ement with the edges of the spring plate t at is to be formed, the same acting to straighten the spring longitudinally while it is being mbered. Compa'ratively few of the blocks 110 are fired for the straightening of the lates. en the templet is constructed as i lustrated in 11 to 14, the nut 106,

on the index pos 105, is threaded down to contact with th adjacent blocks and firmly hold the central portion of the plate 10 1 in contact with fhe squared portion 120 I applied. It, will be mentioned ii -this.

same connection,.that the shafts 51, which carry the clamping :(leyices, are rotated in a direction to reta-inithe clamping devices in inefl'ective position}. by tsprings 126, eachof which springs has one of its ends connected I the extensionsv 118 of the bearing blocks.

to a pin extending from the side of the shaft 51, and its opposite end connected to a convenient partiof the table 45. q In Figs. 1 2 and 3, the springs upon which the machine is operating are designated 3, and comprise each a leaf having an eye formed at one end. .As they are introduced into the machine they arepractically straight, and are, as usual, provided with a central aperture which may be placed over the index post 105. a By this means, and by the engagement of each of its side edges with 110a, the' Spring s properly positioned with respect to the temp et; 1 I a For the purpose of ten'ipering the springs,

the tank A is filled with a suitable solution Y In describing the operation of chine, it will be asumed that a spring, heated to a proper degree for'tempering, has

or oil'to about thelevel of the dotted line ma:. It will be understood, of course, that ordinary cooling coils, etc;, may be employed in connection with the tank. v the mabcen placed upon the upper templet of the table. The operator now draws, down on the operating handle 33 ,to actuate the D-valve 31] and introduce steam into the.

upper end of the cylinder 21. Thereupon,

the piston descends and depresses the head;

26, to'presen-t the upper templet to the spring and shape the same to-conform to'the lower templet. Upon the descent of the head the rod 61 thereof engages the; lug

of the disk 58 and rotates the disk so that the upper end of the flang'e 59 engages one of the cams 57 and oscillates the corresponding shaft 51 tomovethe clamping de vices 52 over and against the spring that is head 26, the-sector plate 73 is oscillated.- by. the link 74: which connects said plate to the I head. Through the pawl 71, the ratchet-TO,

that is keyed to the gudgeon of the table, is rotated through 90, thereby rotating the table a corresponding distance, or until the next templet thereof is p'resented in proper v operative relation to the-templet of the head.

The disk 58, by'reason of the frictional engagement of its flange with the cams 57, is

restored to its former is thus rotated.

7 It will be recalled that the only exertion position'when the table on the part of the attendant necessary to.

perform the operation above I described is qbi the pulling down of the operating handle "33,. the linger 38 that is carried by the piston rod, the rocker arm 37, and the stop 35 that is attached to the "valve rod 32, acting to move the valve to its original position,.'which results in the reversal of the motor and the completion of'the operation above'describ'ed, Another spring may now be placed in the machine, and the foregoing operatlonre- I peated. I The spring .vpreviously cambered, beingsubmerged within the, liquid "contained in the tank A, is cooled and ,teinpered thereby. The spring continues to ride upon the templet of the table until the camon j the end-of the shaft which carries its, clamp-' ing devices, escapes from beneath the flange 59 of the disk 58, and allowsthe-sprin'g 126- to rock the shaft 51 and remove theclamping devices fromthe springQ With'the partsas illustrated, this releasing occurs between the lower and front positions of the templet,

at. I I l/Vhen the spring'is released, it is deflected rearwardly by the plate 92 and lodgeslqion a the conveyer, chains 90. As previously explained, these conveyor chainsiare carried by "sprockets that are fastened to the shaft-82, which shaft is driven'through the.

Wheel 75, from the rotatable table 45. The

springs are ejected from the rear end of the a 95 machme complete in so fares the camber Ting and tempering operations are concerned,

sprocket wheel 83, chain 84, and'the sprocket I have already explained that thegqentral' y portions of the bearing blocksllO and-11oare cut awayat 117. This is to allow access I ofthe tempering solution toa greater area of the surface of the spring than would otherwise be possible.

Having thus described my invention, what i I.c1aim,is.: .m a

- 1. In a machine of the character set forth,

the combination of a rotatable table having; a plurality of angularly disposed templets,: a

eadmovable toward and from thetable and having a templet complementary to the templets of the table, mechanism for mo'ving the head, connections between the ;head

and'table whereby the movement of the 1 head will rotate the table to'su c'cessively ,prese'nt its'respective templets inoperative relation to the templet of the head, clamping devices carried bythetable and adapted for holding articles on the, templets thereof,

after the head recedes, a member carried-by the. head, andjmechanism engaged and actumember for operating the ated by said I clamping 1 devices.

2.- n the combination ofa rotatable tablehavi ng a machine ofthe characte'r forth,

a plurality of angularly disposed templets, a.

head movable toward and from the table and vhavi-nsatemplet :O plement.ary' to-Fthe J templets of the table, mechanism for moving the head and table to successively present" the res 'ctive .templets of the table in Opera.-

tive re ation to the templet' of the head, a

shaft rotatably supported by the table adjacent each of its templets, a clamping device carried by each shaftand adapted for holding an article onthe adjacent templet, the shaft having an offset, a member rotatable upon substantially the same axis asthe table,

said member having a segmental guide that tem lets of the table, mechanism for moving is substantially concentric to the rotating axis of said member for engagement by the offset of each ofthe aforesaid shafts, and means for rotating said member 11 on the depression of the head to cause its a oresaid guide portion to en age the offset of one of the shafts and roc the same in a direction to move the clamping device that is carried by said shaft to effective position.

. 3. In a machineof the character set forth, the combination of a rotatable table having a lurality of angularly disposed templets, a head movable toward and from'the' table and having a templetcomplementary to the .tially the same axis as the table, said member having a segmental guide that is substantially concentric to the rotating axis of said member for engagement by the ofiset of each of the aforesald shafts, the head and said member having cooperating portions where-v by said member is rotated upon the depressionof the head to cause its aforesaid guide portion to engage the offset of one of the shafts and rock the same in a direction to move the clamping device that is carried by said shaft to effective position, and means for returning the shaft to normal position when the offset poit'ion thereof escapes from the guide portion of the aforesaid member.

4. In a machine of the character set forth, the combination of a rotatable table having a plurality of angularly disposed templets shafts rotatably supported by said table, one between adjacent tempxlets, a clamping device carried b each ,s aft and adapted for holding 'artic es on one of the adjacent templets', means tending to, retain the shafts in normal position, a cam carried by each shaft, a member rotatable substantially upon the rotating axis of the table and having asegmental guide that ,is substantially con centric to t e rotating axis ofsaidmember, a head movable toward and from the table 'and having a templet complementary to the templets of the table, and mechamsm for moving the head and table to successively present the respective-templet; of the table in operative relation to the templet of the head, the head and aforesaid rotatable member having portions which cooperate to rotate said member upon the descent of the head thereby to move the guide portion of said member into engagement with and cause such portion to override the cams of the respective shafts successively as the table is turned, for the purpose of rocking the shafts in a direction to move the aforesaid clamping devices to effective position.

5. In a machine of the character set forth, the combination of a movable element having a lurality of templets, a head movable towardland from the element, and having a 'templet complementary to the templets of said element, mechanism for ,mov ing the head and element to successively present the respective templets of the element in operative relation to the templet of the head, and means actuated by the head for clamping articles to the templets of the element.

6. In a machine of the character set forth,

the combination of a table, a templet car-- ried thereby, a head movable toward and from said table-and having a templet'comj plementary to the templet of the table, the

table being movable to shift its templet from operative relation to the templet of the head, mechanism for moving thehead,

and means actuated by the movement of-the head for clamping articles to the first mentioned templet and to retain them during the movement of thetable.

7 An adjustable spring forming templet comprising a base, a flexible supporting member, a plurality of jack screws threaded into the base and having heads that are swiveled in the flexible member, and a. series of bearing blocks carried by the support extensions which project. beyond 105. ing member, certain of said bearing blocks having of which diverge away from the bearing surfaces, said ext sions being arranged to engage the lateral edges of the springs,

thereby to correct fany transverse deformity of the spring.

8. A templet comprising a plate having parallel side edges in planes at substantially right angles to its top surface, a series of bearing blocks for application thereto, each block having opposed teeth, one adjacent each end of the'block, one ofsaid teeth being undercut on an oblique angle to embrace one edge of the plate, and a screw threaded through the other tooth and having a tapered end for engagement beneath the opposite edge of the plate.

A templet comprising a plate and a series of bearing blockscarried by said plate, certain of said blocks having exten s ons which project beyond their bearing surfaces and the-opposed facesof which diverge away from the-bearing sinfaces, said l said movable members during'the' period 'beextensions being arranged to engage the edges of the object to be formedandthereby act upon the. same in a plane at right angles to that in which the bearing suryfacesact upon the object.

10,. In a forming machine, the combina- 'tion' of a supporting structure, an intermit tently revolving die structure mounted thereon, movable work-clamping members mount ed on said die structure, means for operating tweenv the intermittent revolution of said ;die .structure whereby when one of said movable members-is closed another is opened,

and means for intermittently rotating said a die structure during the period between the operation of said member-operating means.

11. A' forming and quenching machine comprising a supporting structure, a tank for containing a quenching bath,- an inter-' I mittently rotating die structure carried by said structure and partly containedwithin said tank, apair of movable'work-clamping members carried by said die .25.

structure,

means forintermittently rotating said die structure, the combination of operating arms mounted on said die structure and connected to said movable work-clamping memhere, means for imparting motion to said arms, and means for partially rotatin said 7. latter means and said structure simu taneconveyor. x

[mounted partly within sai closing and opening mounted partly within sai 60 12. In a forming and quenching machine, the combination of a frame, a receptacle mounted therein, a revolving die'structure mounted partly within said receptacle, dies 'carried b said die structure,' mea ns for re leasing t e work vfrom said dies below the surface of a bath in saidreceptacle, a conveyer extendin point adjacent 51c releasing position of said dies, and means for transferrin the] product of the machine from said ice to said 13. In a forming and quenching comprising a frame, a quenching ath tank, an intermittently revolvin die structure tank, movable work-clamping means on said die structure, the combination of oscillating means for said movable workclamping means an for intermittently rotating said die structure, the said means,

moving with said the structure when the latter'is intermittently rotated.

14'. In a forming and quenching machine comprising aframe, a ucnchin bath tank, an intermittently revo' vin die structure tank, movable work-clamping means carried by said structure, means for operating said work-clamp ing means, the combination of oscillating means for operating vsaid movable workclamping means when said die structure is stationary, said oscillating means carry ng machine means for partially-rotating said die structure after' the die heads.

15. In a forming and quenching machine comprising a frame carrying a quenchingbath tank and provided witha movable die structure operating partly within the tankoperation of said movable said die structure carrying immovable work--' clamping means and means for clamping means, the combination of means for opening said clamping means under the surface of the bath in the tank "whereby the product will be discharged onto a' conclosing said.

veyer the product remaining submerged in the bath until removed therefromby the conveyer. I i I 16. A, forming machine comprisinga frame, oscillating means thereon, an intermittently rotatable diestructure having a plurality of mechanisms thereon for clamping the work, means whereby said oscillatinto said receptacle'to a ing means successively actuates said inecha 'msms on separate movements in one'direction, and means whereby said oscillating means rotates said die structure when movs ing in the opposite direction. v

17. -A forming machine comprising a frame, oscillating means thereon, an intermittently rotatable die structure having a plurality of mechanisms thereon for clamp I,

fluid and to release the work under the surface of said fluid, and. means for mte'rmittently rotating said structure.

19. A forming and quenching machmc compr sing a frame, a receptacle for quenching fluid, a rotatable die structure comprismg a plurality of mechanisms for clampmg, the work, means whereby said mochan sms are successively actuatedto clamp the work above the surface of said fluid and to release the work, under the surface of said fluid, means for holding said structure against rotationwhile said last-mentionedmeans is operating, and means for int ermiti ten'tly rotating said structure.

'20. A forming and quenching machine comprising a frame, a receptacle for a quenching fluid, oscillating means on' said] frame, a rotatable die structure comprising 1'0 comprising a quenching fluid, oscillating means carried by said frame, a rotatable die structure comprising a plurality of ,mechanisms for clamping the work, arranged partly in the aquenching fluid, oscillating cams arranged coaxial with said structure for actuating said mechanisms, to clamp the work above the surface of the quenching fluid and release the Work below the surface, means whereby said oscillating means illtt mit- ,tentl rotates said structure, and means for holding said structure against rotation while said mechanisms are being actuated.

a 22. A forming and quenching machine comprising a frame, a receptacle for a quenchin fluid, oscillating means mounted on said rame, a rotatable die structure on said frame and provided with means adapted to be engaged by a driving-dog,- and a driving dog carried by sai' oscillating means and arranged to rotate said structure. \23. A forming and quenching machine comprising a frame, a receptacle. for a quenchin fluid, oscillating means mounted on said rame, a rotatable die structure'on said frame and provided with means adapted to be engaged by a driving dog, mechanisms carried by said die structure adapted to clamp the work thereon, cams arranged to actuate said mechanisms on one movement of said oscillating means, and a dog carried by said oscillating means adapted to-rotate said die structure on the opposite movement of said means.

45 Signed by me thi 24th day r July, 1919.

cHAaLEs F. SCHULTIS. i

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