US1063744A - Metal-working machine. - Google Patents

Description

E. R. SEWARD.

METAL WORKING MACHINE.

Arrmonxox rILnD un. e, 190s.

1,063,744. Patented June 3, 1913.

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W I TNESSES f e l I L VE TOR.

gfWw/f E. R. SEWARD.

METAL WORKING MACHINE.

urmouxon FILED APB. s, 190s.

Patented June 3, 1913.

6 SHEETS-SHEET Z.

WITNEgsEs.- im. f

' Y Y 1i? INVENTOR.

ATTORNEY.

E. R. SBWARD.

METAL WORKING MACHINE. APPLICATION rrpzn Amm. 190s.

Patented June 3, 1913.

6 SHEETS-SHEET 3.

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E. R. SEWARD1 METAL WORKING MAOHINE.

APPLIOATIOH IILED APLI?, 1906.

Patented June 3, 1 913.

6 SHEETS-SHEET 4.

AVl/M05({yVENTORS Ill IIIIIII Il E. R. SEWARD.

METAL WORKING MACHINE.

APPLICATION FILED APIE. 8, 1908.

Patented June 3, 1913.

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UNITED STATES TENT oFFIoE.

ERNEST R. SEWARD, OF HARTFORD, CONNECTICUT, ASSIGNOR TO THE HARTFORD MACHINE SCREW COMPANY, F HARTFORD, CONNECTICUT, A CORPORATION OF CONNECTICUT.

METAL-WORKIN G MACHINE.

specification of Letters Patent.

Patented'June 3, 1913.

Application filed April 8, 1908. Serial No. 425,931.

To all whom it muy concern:

Be it known that I, ERNEST R. SEWARD, a

citizen of the United States, and a resident flanged heads 21, 22 which are journaled'in of Hartford, in the county of Hartford and- State of Connecticut, have invented a new and -Improved Metal-Working Machine, of which the following is a speclcation.

The invention relates to the class of automatic machines commonly known in the art as screw machines, which machines, however, are not limited to the production of such articles, or, in fact, largely to work upon such devices.

The object of the invention is to provide a machine of this class having numerous and various novel features of advantage and utility. l

One form of machine ein the use of which the object soughtmay be attained is illustrated in the accompanying drawings, in

which- Figure 1 is a front view of a machine embodying my invention, on scale reduced from thatv of the other figures. Fig. 2 is an end view thereof. Fig. 3 isa cross-section on line 3-3 of Fig. 1. dnal section of the turret end, as indicated by line 4 4 in Fig. 2. Fig. 5 is a sectional view of the driving mechanism of the machine on plane denoted by line 5-5 of Fi 4, the drivin pulley belng shown in ful and gear 80 eing removed. Fig. `6 represents a development of the multiple cam for actuatinggthe turret. Fig. 7 is a sectional view on line 7-7 of Fig. 4, parts beyond being-omitted. Fig. 8 illustrates, in detail, r)the means for locking the turret against accidental rotation. .F ig. 9 is a diagrammatic viewfshowingthe cam shaft movement relatively-.to that 'of-the other operative elements of the f In the drawings 10 denotes the base pan of the.- machine, sup orting at one end the head stock 11, with tlie Work s indle 12 and chuck-13, which may be rotate in iany'suitable manner as by a ulley 14. The feed mechanismrmay inclu e the usual slide 15 and its operating cam 16, which latter is mounted on the main cam shaft 17, journaled in suitable bearings in the frame F of the machine, w? ich also carries one or more cross-slides 1,8, operable by a cam 19 on the shaft 17.

The toolV supporting member or turret of the machine-1 includes, in the 'present in- Fig. 4 is a longitu-v stance, acarrier 20 (see Fig. 4) rotatable on a horizontal axis, and having at its ends bearings 23, 24, respectively, of the frame F, and in which aseries of tool spindles 25 is mounted for: reciprocation in'such manner that the severalspindles (in the present instance four in number) will consecutively be actuated by the reciprocating mechanism as they are, one by one, brought into position for engagement therewith by a"step by step rotation of the carrier 20..

The mechanism for moving each tool spin' dle longitudinally and into engagement with the work is adapted to perform this function atany one of a number of different speeds in order to conform with the mechanical requirements of the tool or cutter carried by shaft 27 which is journaled in bearings '28 and is rotated by means to be hereinafter described. The drum 26 carries onits peri hery a series of cam strips a, b, o, d, e, ses Fig. 6) the angular pitch of each of which differs from that of another, while the amount of longitudinal movement of the members engaged by said strips and traveling lengthwise of the drum axis f will in all cases be alike, as indicated by the dimension lines The cam drum travels inthe direction of the arrow g, and whilev the active portions of the several cam strips vary in length, all of them preferably finish their active movements as well as their full return movements on the same line, respectively, a 'feature which is desirable in view of the fact that the turret krotating mechanism is timed to commence its action immediately upon the return of each tool spindle to its retracted or normal position.

The manner in which each of the tool spindles fed toward the work is clearly shown in Fig. 4, and, inasmuchas the construction is similar for all, t-he following description of one is deemed sulicient to explain thefmode of operation. Each tool spindle 25 is, as above stated, mounted for independent reciprccaton in the heads 21, 22 of the turret or carrier 20, which is provided with longitudinal webs 30 (see Fig 3) to engage, in each instance, a collar or similar member 31 adapted to slide on said web and to be firmly secured to the spindle 25 by binding screws 32 which permit said spindle to be variably positioned relatively to the collar 31, so as to vary the movement zone of the tool carried by the spindle, according to the requirements of the work, while the movement zone of the collar 31 remains in all cases constant. In order to permit each collar to be actuated by any one of the cam strips a, b, c, d, e, the former is Provided with a series of apertures or recesses 33, any one of which is adapted to receive a stud 34, clamped in place by a binding screw 35, and projecting beyond the body of the collar, and positioned to be engaged by a particular cam strip on the drum 26, the organization illustrated in Fig.

, 4 showing thatdthe bottom spindle (which is the active one at present) 1s operable by the right hand end cam e, while the top spindle will, when in the position now occupied by the bottom spindle, be operated by the left hand end cam a, each spindle being preferably tubular to receive a. spring 36, one end of which is secured to the spindle while its other end is attached to a stationary shell 37 to assist the return portion of the cam strips in retracting the spindle to its normal position, as limited by a buffer or abutment 38 provided on the endrof each collar 31.

The adjustment of each tool spindle relatively to its collar may be effected by the operator as follows: By referring to Figs. 4 and 7, it will be seen that each spindle 25 is provided with rack teeth 40 in engagement with a pinion 41 formed on a stud 42 which is journaled in the head 22 of the turret and has a squared projection 43 adapted to be engaged by a socket Wrench (not shown) which may be inserted through an aperture 44 in the turret supporting frame, so that cach spindle, when in its operative position or in alinement with the work spindle 12, .may be shifted relatively to its collar 31, after the binding screws 32 have been loosened. access thereto being afforded by the open front 45 (see Fig. 3) of the turret frame.

The cam drum 26, whereby each tool spindle is fed toward the work, is, as above stated, rotated to operate the tool spindles, this movement being dependent upon that of the cam shaft 17, as follows: The drum shaft 27 carries a pinion 50, rigidly secured to the hub 51 of the drum 26, and in engagement with a gear 52, the hub 53 of which is keyed to the cam shaft 17 and is secured to a worm gear 54 in mesh with a Worm 55 on a transverse shaft 56 (see Figs. 4 and 5). This shaft is journaled in bearings 57, 58 of a bracket 59 attached to the turret' frame, and is adapted to be driven at different speeds from a driving shaft 60, either through a slow differential gear mechanism indicated in a general way by 61 and including a pinion 62 and gear 63; or in a direct manner and at high speed through a gear 64 secured to the front end of the worm shaft 56 and engaged by a gear 65 normally loose upon the driving shaft 60 but adapted to be rotatively connected therewith by a clutch collar 66, the position of which is controlled by a lever 67 automatically operated by a cam 68 (see Fig. 4). Rotary movement is imparted to the driving shaft 60 (which is journaled in bearings 69, 70 of a bracket 71) by a bevel gear 72 in engagement with a similar gear 73 secured to one end of the main driving shaft 74, journaled in bearings 75, 76 of an extension' 77 of the bracket 71, and carrying a belt pulley`78 which may be driven from any convenient source.

From the above description it will be understood that the present machine includes two independent driving mechanisms, viz.: one for continuously rotating the Work spindle, and the other for continuously actuating the cam shaft 17, which latter is, however, rotatable at a high or low speed, and which constitutes the principal member whereby all of the other mechanisms except as stated are directly controlled and driven.

Means are provided for imparting to the turret or tool carrier 20 an intermittent rotation in order to bring its several'spindles successively into operative position relative to and in alinement With the work spindle 12, in which position such tool spindle may be reciprocated by the cam drum 26, before the turret is rotated to bring its next succeeding tool spindle into active position, and inasmuch as in the present instance the turret has four tool spindles, its operating mechanism is organized to turn the same rapidly for ninety degrees immediately after the tool carried by each spindle has completed its work effected by that movement of the spindle. This object is accomplished preferably in the manner illustrated in Figs. 2 and 4, in which the main driving shaft 74 s shown carrying a pinion 79 engaging a gear 80, which is loosely mounted upon a crank-shaft 81 journaled in bearings 82, 83. The hub of the gear 80 carries a clutchsleeve 84 the teeth 85 of Which are adapted to be engaged by a clutch collar 86 'splined to the shaft 81 and longitudinally shiftable thereon so that in this manner the gear 80 and shaft 81 may be connected for rotation. To the shaft 81 is secured the turret-rotating or actuating member consisting of a double-crank arm 87 which carries a pair of rollers se, 89 (see Fig. 2)l adapted narthen lleaves the disk, finally arriving at a ber or bolt 92 (see Figs. 7` and 8).

normal position-,of rest shown in Fig. 2,in which the crank; arm 87 vand turret remain stationary duriiig the longitudinal reciprocation of the activetool spindle 25. The organization ofthe parts is such that when the disk 90 sat rest the slots 91 therein will lie in a line' substantially tan ential to the arcuate path ofthe rollers, an as the rollers enter and leave theslots when in this position, it results that the' relative movement of the disk will start slowly, gradually be accelerated, and then come toa slow stop, in

which positionl the turret is'locked against` accidental displacement by a locking mem- This bolt is mounted for longitudinal movement in the turret frame, or more particularly speaking, in a hardened bush-ing 93 therein, and has a tapered end 92 to enter 'a corre-- spondingly shaped aperture in. any one of a series of bushings 94 carried bythe flange 22 of the turret-head 22 above mentioned, a spring 95- (resting with its outer end against a stationary gbutment96) serving to cause said bolt to engage the flange during the resting period of thel turret or carrier.

In order to withdraw the' bolt 92 from the turret to permit the latter to be rotated by the crank rollers 88, 89 there is provided a pair of cam-faces 97, 98 (on the back or hub of the crank arm 87) which will engage a' pin 99 carried by the bolt 92, and pull the latter outward to releasev the turret-'immediately after the active roller 88 or 89 has entered the nearest slot 91 sufficiently to control the turret, and, after-the active crank-roller has partially' turned the turret, said. bolt wills` again be released' from its withdrawal cam, and therefore be moved by the spring 95 into contact with the face of the turret-head 22 ready to snap into the next succeeding bushing '94 whereby the turret will be positioned `with its next'succeeding tool spindle-'25 in exact alinement with the work spindle 12. A

The clutch collar 86 is shifted to connect the gear with the shaft 81 .at the proper time, by means of a bifurcated lever 100, pivotedy at 101 and having an arm 102 provided with a .roller 103 engaged by either.

one of a. pair of cams 104,105 carried by the crank-arm 87 to .disengage the clutch collar 86 from the teeth 85 and thus arrest the rotative movement of the arm when it has reached its proper position, as shown in the drawings, any accidental further rotation thereof (as from a possible drag of the gear 80 on the shaft 81) being 4prevented by a spring actuated checkpin 106 against which a pair of stop-pins 107 on the crankarm 87 may each alternately rest. The

spring pressure of the check-pin 106 is, however, suchV as to be readily overcome when Y the crank-arm 87 is positively started to rotate, this movement being accomplished by a spring-actuated 'do'g 108 adapted to engage either one of a pair of starting pins 109, indicated in Figs. 4 and 7, andcarried lby the crank-arm 87. The dog 108 is pivotally held at the end .of a lever 110, loosely supported by the pivot pin 101 above-mentioned and having an arm 111 provided with a lroller 112adapted to be engaged by a series of cam plates 113 which are secured to the starting cam disk 114 carried by the camshaft 17.

From the foregoing it will be understood that the clutch collar 86 is .held from engagement with the clutch teeth directly. by the cams 104,105,- on the crank-arm 87, so that the collar 'cannot be moved (as by with said teeth 85 to drive theshaft` 8l from the gear 80, during the .interval in which the lever 102 is held by a cam 104 or 105, thus maintaining the crank arm 87 during this interval in what may be termed its rest position, and it willalsoL-beunder-` stood that,\`in', order to cause the shaft 81 to be drivenby the gear 80, it will be necessary to start the crank-arm`87in its rotation, which result is 'accomplished by lithe start ing cam 114 and the several elements operated thereby. f

The organization of the present machine provides for a turret having four tool carrying spindles, all or a portion of which may be ,successively brought intovengagement with the work (which may then bel cut off from the stockbar, 'whereupon theA latter is fed forward to have its end operated upon, and the tool spindles of the turret are thenagain successively caused to o rate on said bar). In view of this'circumstance, the cam drum 26, whereby the reciprocation of the tool-spindles is effected, makes a complete rotation to produce a complete reciprccation of each spindle, making as many rotations' as there are spindles operated in a cycle of movement ofthe turret, and then V a Spring 115, Se@ Figv 1) into engagement in the arrangement herein outlined and in which all four spindles are utilizeddn a cycle of movement of the turret, the ratio of the gearing between the cam shaft 17 and the cam drum 26 being as five to one; in othei` words the gear 52 is of such size as to use fcur-fifthsof its circumference for the purpose of causing four complete rotations of the camvdrum 26, the remaining fifth of the gear-circumference being idle, as far as any actuation of the cam drum is concerned, during which interval the chucking, feeding, and the other operations by mechanism disposed at the left-hand end of the machine, and also operated directly from the main cam shaft 17 takes place and during said' one-fifth rotation thereof.

A cycle of movement ofthe turret completes the work to be done. by the machine upon each article produced thereby, and provision must be made for the lapse of sufiicient time between the final and initial operations of the tools in the turret during which chucking, `feeding' and other operations if necessary may take place. makes a complete rotation to produce a complete reciprocation of each spindle in the turret and it will therefore be seen that this pause for chucking and other operations takes place in the interval between the operations of two certain spindles in the turret. In order, however, that this pause shall occur only once in the formation of each piece `being made by the machine, and not in the interval between the operations of each of the spindles and consequently a number of times during the making of each piece, the mechanism is constructed in a manner now to be described. In order to interrupt said rotations of the cam drum only at the proper time but furthermore to positively lock. the same against accidental movement during itspauses, the .gear 52 is Y mutilated by hav/ing acertain number of its peripheral teeth removed, and a locking flange 120 (see Figs 8and4) is attached to the side of the gear rim as by screws 121 to coperate vwith an arcuate cut 122 in the hub of the pinion 50, so that the cam drum will, during approximately one-fifth of the gear rotation be prevented from 'movement in either direction, thereby insuring the proper rengagement of the teeth on the gear 52 with those Yof the pinion 50. -By referring to Fig. 3, it willalso benoticed that the cam drum 26 is cut away at 26,.so thatthe operator may be enabled to place the operating stud 34 of each tool spindle collar 31Vinto position to be actuated by that cam strip on the drum 26, which is best adapted workfto be done'by the tool. l

Although the pitches of the several cam strips on the drum as illustrated in. the drawings are such as to provide a variety of tool-feed speeds whichv will meet most of for/the The cam drum the ordinary requirements it may sometimes, to meet a special requirement, become desirable-to substitute one or more other cams for those on the drum, or,-perhaps to substitute another drum with a full complement of different pitch cam strips, for the drum in use. Infieither case the most practicable Way of effecting such change will be to remove the drum 26, with its shaft 27 bodily from the-machine, and, in order to vprevent any mistakes -in replacing the drum in proper position relative to its actuating gear, etc., I have provided means which permit the removal of the drum, and its pinion andshaft, only when the pinion A50 occupies a certain predetermined; position relative to the gear 52, which position must again be occupied before the parts can be' rei assembled. The vdevice forV assuring this proper reassembling consists preferably of a ring or flange 1 23 (see Fign/t) secured to the right-hand side of the pinion 50, so that \the latter can not be moved'toward the left and out of engagement with the gear 52 except said fiange be Within that peripheral portion of the gear on which the teeth are absent. The drum shaft must be moved vaxially toward the left in order to remove it from the frame, inasmuch as lthe right-f short distance into an aperture 124 provided therefor in the frame.` Now, inasmuch as the gear52 carries at itstooth-free or mutilated portion the locking fiange 120, it follows that the latter must beremoved from said gear in order to allow the pinion 50 for removal.

When it is desired to replace the drumshaft the conditions above described. must necessarily be again'met, with the addition that the drum `cannot resume. any other position, as far as its rotation is concerned, because the periphery of the locking fiange 120 necessarily fits intdthearcuate cut 122 locates the same before the shaft to be replaced can be removed; the substitute shaft beingv immediately `thereafter' placed in position. Y

The operation of the several -machine elements as controlled by, andduring each ro Atation of, the cam shaft/17 has been illustrated by`a diagram (see Fig. 9) in which the position of the several elements is indicated by the index-line X, and by swinging this line around-in the direction of the arrow X the successive performance of the several devices and their actuators can be readily followed. From this diagram it. appears that the turret cam druml26 has just completed the last one of its four consecutive rotations (its lasttool spindle having, therefore, returned to its normal position hand end of the shaftv projects and fits for ain the turret,) and has just been locked by and shaft 27 to be moved toward the left v of the pinion hub, andvtherefore definitely y the locking-flange 120 so as to afford the stock-feeding mechanism time to perform its function duri the first one-fifth rotation I of the cam shaft 17. As soon as the stock-feed has been accomplished the cam shaft 17 commences its second one-fifth rotation II, at the beginning of which the crank-arm 87 will be caused to make onehalf turn (first by the starting cam 113 and subsequently by the gear 80) for rotating the turret 20 ninety degrees to bring toolspindle #l thereof into alinement with the work or stock to be operated upon. At the same time the cam-drum 26 has started on its first rotation, so that, after the turret has been turned as just stated, the particular cam strip for operating the tool-spindle to be now acted upon, will cause one complete reciprocation of the latter. At the completion of this reciprocation the turret will again be indexed or turned, and the other elements will consecutively perform their several functions during` the third onelifth operation of the cam shaft, which action will also be repeated during the fourth and the fifth or last one-fifth rotaxon IV, V respectively, thereof, so that during one complete rotation bf the cam shaft four-fifths thereof will be utilized for imparting four successive rotations to the cam drum 26, such rotations serving to reciprocate the four tool spindles successively relatively to the work or stock-spindle, whereupon the cam shaft 17 commences another rotation and the successive operations are again performed as before.

1t will be seen that the cam drum is independently mounted and acts solely to operatethe spindles in the turret. In the arrangement of parts in the machine herein illustrated the rat-e of movement of the cam drum is the-same as that of the main cam shaft, although the rate of working speed of the cam-drum is constant, and by working speed is meant the speed of the drum during the operation of the tools upon a piece of work.

When` the cam drum is operating to feed the tools the parts are driven at slow speed, and the drum is driven at the faster speed at all. other times during its movement and until the tools are brought up into working position with respect to the-blank being operated upon, the drum, however, being disconnected from the main cam shaft when the chucking, feeding and like operations of the machine are taking place.

I do not limit my invention andthe scope of the following claims to the fore oing illustration and description of the pre erred form in which it has been embodied but contemplate various changes as within the spirit and intent of the invention.

l. A. work spindle with means for operating it, a turret bearing tools, means for rotating the turret, a cam drum, means for driving the drum at a constant rate of tool working` speed, tool operating cams of different' pitches separately arranged and spaced apart on the drum, and means whereby, withoutchange of cams, any cam may be made to operate successively on any plural number of tools.

2. A work spindle with means for operating it, a turret bearing tools, means for rotating the turret, a cam drum, means for driving the drum at a constant rate of tool working speed, tool operating cams of different pitches separately arranged and spaced apart on the drum, and means whereby, without change of cams, any plural number of cams may be made'to operate successively on any tool fo produce different feeding speeds of said tools.

3. A work spindle with means for operating it, a tool spindle with means for operating it, a cam drum, means for driving the drum at a constant rat-e of tool working speed, cams spaced apart on the drum each to wholly operate one of saidI spindles at a different speed from that ,imparted by another of said cams, connections between said tool and cams separately adjustable and including a member adjustable independently of the cam to adapt all of the cams to the operation of said tool, and connections to impart a complete rotation to the drum at every tool movement.

4. A work spindle with means for operating it, a turret bearing tools, means for rotating the turret, mechanisms for performing different operations, a cam drum mounted independently of other moving parts, a shaft to drive said drum and direetly connected therewith, said connection being interrupted to permit periodical rest of the drum during operation of said mechanisms, and means for operating said shaft.

5. A work spindle with means for operating it, a turret bearing tools, means for .rotating the turret, mechanisms for performing different operations, a cam drum for placing the tools in the turret in operative position, a driving shaft for said drum directly connected therewith, said connection being interrupted to permit `periodical rest of said drum during operation of said mechanisms, and means for driving the cam shaft. at a different rate of speed during such disconnection 6. 'A work spindle with means for operating' it, a turret bearing tools and means for rotating the turret, mechanisms for performing different operations on a piece held by the work spindle, a cam drum for placing `the tools in the turret in operative position, a shaft for driving said drum, intermeshing gears in a connection between the tram. drum and cam driving shaft, one of the drum, and means said gears being toothless for a portion of itsperiphery to permit rest of said drum during the operation of said mechanisms on said piece. of Work, and means for driving the cam driving shaft. l

7. A work spindle with means for oper ating it, a turret bearing tools and means for rotating the turret, mechanisms for performing different operations on a piece held by the work spindle, a cam drum arranged to place the tools in the turret in operative position, a cam driving shaft, intermeshing gears borne by the drum and the shaft, one of said gears being toothless for a portion of its periphery to permit rest of said drum during the operation of said mechanisms on said piece of work, and means for driving the cam driving shaft..

8. A work spindle with means for operating it, a turret bearing tools and means for rotating the turret, mechanisms for performing different operations on a piece of work held' by the work spindle, a cam drum arranged to place the tools of the turret in operative position, a" cam driving shaft, geared connections between the drum and cam driving shaft, one of said gears being toothless for a portion of its periphery to permit rest of said drum during the opera` tion of said mechanisms on said piece of work, and means for driving the cam driving shaft at variable rates of speed duringr the disconnection between the cam drum and main cam shaft.

9. A work spindle with means for operating it., a turret bearing tools, means :for rotating the turret, a cam drum, means for driving the drum, cams spaced apart on the drum, and means for transferring the effect of each cam to wholly impart feeding movement to any tool, said drum making a complee rotation for the operation of every too 10. A work spindle, means for rotating it, a tool spindle to cooperate with said work spindle, a cam drum having its axis extending in the same direction as the movement of the tool and with means for operating said drum, cams spaced apart on the drum, and means for selectively transferring the etect of each cam to impart feeding movement to said tool, said drum being adapted to make a complete rotation for every operation of said tool.

11. A work spindle with means for operating it, a tool spindle to coperate with said work spindle, a cam drum having its axis extending in the same direction as the movement of the tool, a shaft connected with said drum to drive it, cams spaced apart on for selectively transferring the effect of each cam to feedy said tool at variable rates of speed, said drum being adapted to make a complete rotation at every operation of said tool.

12. A work spindle with means for operating it, a turret bearing tools, means for rotating the turret, a cam drum having a series of cams separately arranged thereon side by side extending lengthwise of the drum, connections between the tools and cams arranged to cause operation of any tool by any cam, and means `for operating said drum.

13. A feeding mechanism including a turret with means for operating it, spindles mounted in the turret, pins adjustably sup` ported in different predetermined positions on each spindle, and means engaging the pins to reciprocate the spindle each at different rates of speed.

14. A feeding ymechanism including a spindle mounted for longitudinal reciprocation, a collar secured to the spindle, a contact member, means for removably securing the contact member to the collar at points equally distant each from the other, and means spaced apart the same distance as the points of attachment for said contact mem` ber, each of said means being adapted to act l pon the contact member to move said spin- 15. A feeding mechanism including a tool spindle with means for supporting it, a contact member arranged for adjustment on the spindle in positions equally distant each from the other, a series of cams arranged to feed a spindle a distance equal to that between the different positions for said contact member, and means for operating and supporting the cams.

16. A feeding mechanism including a tool spindle with means for supporting it, openings equally spaced in a part supportedil by the spindle, a pin removably secured in an openlng, a cam drum having cams arrange with the distance between the finishing points thereof the same as the distance between said openings, and means for operat` ing the cam drum. 110

17. A feeding mechanism including a tool spindle, means for supporting it, a member on the spindle having openings equally spaced to receive a pin, a pin adapted to be removably secured in either of said open- 115 ings, a cam drum having cams arranged to impart movement to the member at different rates of speed and with the distance between the finishing points of the cams the same as the distance between said openings, 120 and means for rotating the cam drum at a constant rat-e of speed during the operation of a plural number of cams.

1S. A work spindle with means for operating it, a tool spindle with means for sup- 125 porting it, said tool spindle bearing a member having openings equally spaced, a pin adapted to be removably secured in either of said openings, a cam drum having a plural number of cams larranged to engage `130 said in to move the sameatfdierent rates, the distance between the nishin points of the cams being the same as the lstance between said openings, and means for rotating the cam at a constant rate of tool working speed.

19. A work spindle with means for operating it, a tool spindle with means for supporting it, said spindle bearing a member having openings equally spaced, a pln arranged to be secured within either of said openings, a cam drum bearing cams each arranged to impar-t feeding movement to said tool at differentrates of speed from that of another Ycam, the extent of such movement however being the same in each instance, and means for operating the cam drum.

20. A tool feed including a spindle bearing a tool, a collar adjustably mounted on the spindle, means for operating the collar and spindle, a rack on the spindle, and a pinion engaging said rack, said pinion having means whereby it may be operated.

21. A tool feed including a support for a spindle, a spindle mounted for longitudinal movement in said sup ort, a collar adjustably mounted on sai spindle, means for operating the collar, and means for reciprocating the spindle in its support independently of said collar'to adjust the relative positions of said collar and spindle.

22. A tool feed including a support for alspindle, a spindle mounted in said support, a collar adjustably mounted upon the spindle, means for moving the collar, a inion borne in abearing of said support an connected with said spindle and having a part projecting through said support, and means on said part for rotatin t e pinion.

23. A tool feed inclu ing a bearin having an opening thereinto, a spindle aving teeth and supported for reciprocating movement within said bearing, a collar adjustably mounted on the spindle, and a pinion supported in operative relation to the spindle and/having teeth meshing with teeth on the spindle and also having a member projectin opposite said opening and accessible there rough.

24. A feeding device including a bearing having an opening thereinto, a' turret supported in the bearing, toothed spindles mounted in the turret, collars adjustably mounted on the spindles, pinions located in the turret head and having a part projecting therethrough, said pinions meshing with teeth .on the spindles, and having means whereby they may be operated, means for rotating the turret, and means for bringing it to rest with the 'projectin part of any pinion accessible through sai opening.

25. A turret, a number of tools borne by the turret, a tool actuator having a plurality of devices each adapted to feed a plural number of said tools, a member to operate said actuator, said member being arranged to, accomplish a complete movement in each complete rotation of the turret, means for disconnecting said actuator and saidoperating member therefor during a portion of the movement of the latter, and a work spindle supported in operative relation to the turret.

26. A turret, a number of tools borne by the turret, a cam drum having cams each adapted to feed a plural number of said tools, a pinion connected with the drum, a gear meshing with the pinion and arranged to have a complete rotation in each complete rotation of the turret, means for disconnectsy ing said gear and pinion during a part rotation of the gear, means for holding the drum against rotation during said disconnection, and a work spindle supported in operative relation to the turret.

27. In an automatic machine, a mam can. shaft for operating a turret and other parts of the machine, a turret, a number of tools borne by the turret, a toolactuator having a plural number of devices each adapted to feed a. plural number of said tools, a member to "operate said actuator, said member being arranged to accomplish a complete movement in each complete movement of the turret, means for disconnecting said -actuatorand said operating member therefor during a portion of the movement of the latter, and means for drivin the cam shaft at a digferent rate of speed uring such disconnection.

28. A support, a tool spindle slidably mounted on the support, a spider sustained by the support and arranged to assist the spindle in resisting thrust of its operating part, and means for operating the spindle.

29. A turret, a spindle slidably mounted in the turret, a collar adjustably mounted on the spindle, a spider arranged to enga e said collar and support the thrust of t e part moving the spindle, and means for operating the spindle.

30. A turret including ahead and spiders ex'tending radially of Nthe turret and arranged to support spindles against the thrust of operating parts, spindles slidably mounted in the turret, and means for operating the spindles. o

31. A turret rotatably mounted, means including a primeV mover and a part disconnected therefrom for rotating the turret, a disengaging member between said parts, and means operated by the' movement of said disconnected part for actuating said disengaging member. y

32. A turret rotatably mounted, means including a prime mover, and a part disconnected therefrom for rotating the turret, a

part to operate the clutch by movement of said disconnected part.

33. A turret rotatably mounted, means including a prime mover and a part disconnected therefrom for rotating the turret, a disconnecting member between said parts, a

lever to operate said disconnecting memy termittent'ly rotate the latter, means operated b v a movement of an intermittently rotated part for actuating said disengaging member in one direction, and means for moving it in the opposite direction.

36. A turret rotatably mounted, means including a prime mover and a part disconnected therefrom for rotating the turret, a disengaging member between said parts actuated during movement of the turret to intermittently rotate the latter, means operated by a movement of an intermittently rotated part for actuating said disengaging member in one direction, means for moving it in the opposite direction, and means for moving said actuating member from a position of rest.

37. A turret, an actuator to rotate the turret, a cam borne by the actuator, means for operating the actuator, connections between said means and the actuator including a disconnecting member, means operated by said actuator for actuating the disconnecting member, and means or moving the actuator from a position of rest.

3S. A turret rotatably mounted, an actuator for rotating the turret, said actuator having intermittent movement, means for operating the actuator, a connection between said parts, means for operating said connection in one direction,'means connected with a part permanently `connected to rotate with the turret for operating the connection in another direction, and means for moving the intermittently operated part from its position of rest.

39. A turret rotatablyV mounted, means including a prime movcr'and mechanism disconnected therefrom for rotating the turret,

a disconnecting member between said parts,

a controller permanently connected with the turret for operating the disconnecting member in one direction, means for operating it` cluding a prime mover and a part disconnected therefrom for rotating the turret, a-

disconnecting member between said parts, a lever for operating said disconnecting member, an actuator permanently connected with the turret to operate said lever to disconnect the parts, means for actuating the lever to connect said parts, and means for imparting initial movement to said actuator.

41. A rotating member, an actuator to operate the same. mechanism for operating the actuator, connections including a disconnecting member between parts of said operating mechanism, a lever to operate the disconnecting member, a cam on the actuator to operate said lever in one direction, means for moving it in the opposite direction, and means for moving sa id actuator from a position nf rest.

42. A turret, an actuator arranged to engage the turret, means for operating said actuator, connections between the operating means and actuator including a disconnecting member, a lever for operating the disconnecting member, a cam on the actuator arranged to engage the lever to disconnect and hold it with the actuator at rest, means to initially move the actuator to disengage said cam from the lever, and means for throwing the lever to connect said parts.

43. A turret rotatively mounted, means including a prime mover and a part disconnected therefrom for rotating the turret, a disconnecting member between s'aid parts,

means for moving t-he disconnecting member in opposite directions to engage and disengage parts. and including means controlled by the movement of said disconnected part for operating the disconnecting member in one direction.

44. A turret rotatably mounted, means including a prime mover and a part disconnected therefrom for rotating the turret, al

disconnecting member, means for forcing the disconnecting member into position to connect the parts, and means 'operated by movement of said disconnected part for moving said disconnecting member and holding it to disengage the parts.

45. A turret rotatably mounted, means including a prime mover and a part disconnected therefrom for rotating the turret, a

disconnecting member, means actuated by the movement of a-disconnected part to operate said disconnecting memberV to stop rotation of the turret, and means for imparting initial movement to said cont-rolled means to move it from its posit-ion of rest and allow actuation of the disconnecting member.

46. A work holder, a carrier, a plural number of tools borne by the carrier, a plurality of different speed actuators separately arranged side by side for moving said tools into operative position with respect to the work holder, anda connection with each tool for operation by either of said actuators during a single cycle of operation of the machine.

47. A Work holder, a carrier, a plural number of tool holders borne by the carrier, a plurality of different speed actuators separately mounted side by side and each arranged to operate a plural number of tools held by the holders, and connections with each tool holder for operation by either of said actuators during a single cycle of operation of the machine.

48. A metal working machine including feeding and chucking mechanism, tool holders supported in operative relation to said mechanism, an actuator for said holders, means for moving said actuator, and means for disconnecting it from its moving means during the operation of the eedlng and chucking mechanism.

49. A Work spindle, means for operating it, a turret bearing tools, means for rotating the turret, a cam drum, means for driving the drum at a constant rate of tool working speed, cams spaced apart on the drum each to wholly operate each of said tools, and connections between the tools and cams separately adjustable to adapt either tool to either cam.

50. Work spindle with means for operating it, a tool spindle, a cam drum, means for driving the drum at a constant rate of tool Working speed, cams spaced apart on the drum each to completely feed said tool, each feeding movement taking a complete rotation of the drum, and means for operating the drum.

51. A Work spindle with means for operating it, a tool spindle, a cam drum having a series of cams separately arranged thereon side by side and extending len thwise of the drum, connections between said tool and cams for feeding movement of said tool by each cam separately, and means for operating the drum.

52. A work holder, a tool holder, means for operating a holder including a plural number of actuators spaced apart each to Wholly actuate a holder, and connections between the actuators and holder including a projection adapted to be engaged by any one of a plural number of actuators in a single movement of the 'holder operating means.

ERNEST R. SEWARD. Witnesses:

GEORGE E. WITHERELL, H. E. PENFmLD.

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