US1031694A

US1031694A - Automatic disk-feed.

Info

Publication number: US1031694A
Authority: US
Inventors: William Deats
Original assignee: Individual
Current assignee: Individual
Priority date: 1910-09-21
Filing date: 1910-09-21
Publication date: 1912-07-09
Anticipated expiration: 1929-07-09

Description

W. BEATS. AUTOMATIC DISK FEED.

APPLICATION I'ILED SEPT. 21, 1910.

Patented July 9, 1912.

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AUTOMATIC DISK FEED.

W. BEATS.

AUTOMATIC DISK FEED..

APPLIUATION FILED SEPT. 21, 1910.

Patented July 9, 1912.

4 SHEETS-SHEET 4.

HEMI!!! Y WILLIAH nnn'rs, or YoNKnns, New Yonx.

millonario msn-FEED.

To all whom, z' may concern: l

Be it known that I, WILLIAM DEATS, a citizen of the United States, residing at Yonkers, in the count of Westchester and State of New York, ave invented a new and useful Improvement in Automatic Disk- Feeds, of which the following is a specification.

My invention relates to an automatic disk feed mechanism, more particularly described as an automatic device for feeding and withdrawing armature disks or laminations from a punch press.

The principal object of my invention is to provide automatically o-perable means whereby armature disks are fed to a punch press; thereupon punched, and then-stacked on a shaft.

In the accompanying drawings, Figure 1 represents a side elevation of a machine embodying my invention with several parts brokenaway for clearness; Fig. 2 is aplan view of the same; Fig. 3 is a detail view, partly in sectionof the turret lifting shaft and one of the disk-holding arms; Fig. 4 is a detail view of a ratchet device on the line 4-4 Fig. 3; Fig. 5'is a detail view on the line 5-5 Fig. 3, showing the suction chainbers; Fig. 6 is la detail of the suction and discharge openings of a valve; Fig. 7 is a View of the same rotated; Fig. 8 is a view of the main operating shaft of the punch press; Fig. feeding device; Fig. 10 is a detail view of the weight compensating device; Fig. 11 is a detail of the ratchet for the same; Fig. 12 is another view of the weight compensating and ratchet devices; Fig. 13 is a modifica- I tion substantially like Fig. 3 with pressure cylinders for raising and rotating the turret shaft; Fig. 14 is a detail of one of the pressure cylinders; Fig. 15 is a detailview of ya trip-cam device of Fig. 1.

Referring now more particularly to Figs. 1 and 2, a standard or base 1 supports at its upper extremity a shaft 6 and the latter carries a drive pulley 5. A slotting device (see also Fig. 8) comprises a sliding head 7, movable up and down in the guides 8; a slotting die 9 is carried by the head 7, and a movable member 10 pressed by springs 11 is to free the die 9 from the punched material.. Up and down motion is imparted to the sliding-head 7 by the eccentric 13 mounted on the shaft 6 and secured to the sliding head. Shafts 6 and 6 are not integral and i Specification of Letters Patent.

Application led September 21, 1910. Serial No. 583,002.y

9 is a detail view of thedisk are connected bythe clutch device 14. This p Patenten Julyo, 1912.

clutch device is operated by the foot lever 17 through the rods 15 and 16; connecting the said shafts when the foot-lever 17 is pressed down; the lever being raised by the'U spring 18. 3

The arm 2 is secured to the base l and support-s the die plate 12 which corresponds with the die 9. The arm 2 also supports the turret shaft 4; which in turn supports the turret 3.v A disk-rotating shaft 15 is also mounted in the arm 2 and has connections with the shaft 6 intermittently to rotate a toothed wheel 16': The wheel 16 is oper-A ated by cams 19 and 20 (Fig. 8) in connection with the shaft 6; and the rods 21 and 22 (Figs. 2 and 8). Of these rods; 22 is connected to the locking lever 23, while the rod l21 carries the ratchet tooth 24 and is held in position by the arm 25. The locking lever 23 is first moved to. release the wheel 16 and thereupon the rod 21 and tooth 24 operate to advance the toothed wheel 16 one step, whereupon the toothed wheel is again locked by the locking lever head 27 to give a little.

On the toothed wheel16 is pin 31 (Figs. 1 and 2) which engages one end of a lever 32 pivoted on the arm 2; the other end of the lever is slotted, the bifurcations extend? ing on either side of a pin 33 which is fastened to a rod 34. This rod extends toward the standard 1 through the locking device 35 and carries a small block 36 with an extending lip 36'; the rod 16 carries a block 37 and when the rod 16 is pressed down 'the spring 38 causes the rod 34 to move slightly so that the lip 36 extends over the block 37 and holds -the rod 16 down. The rod 34 also carries a block-39 to engage a clutchoperating device which will -be described presently.

An intermediate'shaft 41 is directly connected by gears 42to the main shaft 6 and carries the bevel gear 43. This gear 43 meshes with the gear 44 on the shaft 45 which carries the clutch member 46. A complementary clutch member 47 is mounted on the auxiliary shaft 40 and the clutch device 48 comprises a latch 49 and a two- ,turret 3 there are shoulders 73 with 4which three projecting cam 51 is mounted on the shaft 40 and en gages a roller 52 (Fig. 15)'carried by a lever 53 which has one end pivoted to the arm 2,

the other end to the rod 54, and the rod is.

connected'with the foot lever 17. A spring 55 is provided to hold the roller 52 in contactwith the cam 51',

The turret 3' is preferably Vformed with arms ab and a, the ,turret shaft 4 extending through the hub thereof. This shaft 4 is free to rotatein either direction =in the turret hub and has connection with the 'auxiliary shaft 40. A member 56 (Figs. 1, 2 and 3) is mounted on the shaft and is formed with cam grooves l57 and 58, which extend around the said member. A lever arm 59 on a shaft 64 ,has a pin or projection which extends into the vcam groove 57, and another arm 60 on the same shaft is connected by the link 61 to the toothed rack 62 which meshes with the gear wheel 63 secured to the shaft 4. Another lever arm 65 secured to shaft 67 has a projection which extends into the cam groove 58 andan arm 68 secured to the same shaft 67 has a bifurcated extremity the parts of which extend on either side of the shaft 4 and between the .shoulders 69. The

cam grooves

57 and 58 are shaped to cause the movements of the arms 59 and 65 to effect rotation, raising and'lowering of the shaft 4 as the member 56 is intermittently rotated.

At the top of the shaft 4 is a ratchet de- 'vice to' rotate the turret 3 (Fi 3 and 4).

cam-fsha ed member 70 is vrshaftlf4" an has a` pawl 71 pivoted thereto eyed to the "afspring ,72 to press the pawl outL 'vardlyJ `In tle adjacent portion of the l 'tlieapawl en ages to rotate the turret 3 when the shaft 4 1s rotated.

. v A' locking device for the turret 3 is shownl K ing'po'rtion of the main arm 2. In the under face of the turret 3 are openings into.

whichthe pawl 74 is pressed by the spring; oneopening 76 for each turret arm. To

free the turret of the locking device it, the turret, is lifted up before the device which operates the same is rotated. A retardin device or brake 77 is provided for the sha 4 to prevent unsteady or lfree movement thereof. This device is too well known to require further description.

Referring again to Fig.l 1, an adjustable bracket 78 is shown bolted to a projecting portion 2 of the main arm 2. The bracket carries blocks 81, 82,- having notches in their op osing faces. The blocks are adjusted to an away from each other. A right and left threaded bolt 83 with the head 84 (see also Fig. 2) is to' adjust the distance apart of the notched blocks between lwlhosefa'ces the shaft 79 is stepped upright.`

On another arm 85,-. ro' main arm 2 is the disk e ing device. The

feeding device arm, the disk receiving bracket,

vand the main arm are e uidistant from each other to corres ond wit the three eguidistant arms of t e `turret 3. Details of the disk feeding device are shown by Figs. 9, 10, 11 and 12. A stack of disks 86 with a central shaft olpening and'bentered by a longitudinally s otted shell shaft 87 are held y a late 88, cross piece 89, and sha-ft 90.

e sha 90-is free to move up and down within the shell shaft 87', and `carries the plate 88 on the. cross piece 89, and is `proectlng from the vided with a toothedrack 91 to move the shaft u and down. A weight 92 is suspended y a flexible cable 93 from the irregularly sha ed cam 94 mounted on the shaft 95 to whic the gear wheel'96 is xed. Gear 101, and the ratchet pawl 103 to engage the wheel 102 is pivoted to the lever 104, the latter being pivoted to the arm 85, and the rod 105 to the lever 104. The locking pawl .106 is pressed by a spring 107 to engage the ratchet wheel 102. The rod 105 is connected to a pin 108 in the disk 109 which is at the lend of the auxiliary shaft 40. Although a spring 110 presses-againstv the ratchet pawl 103, it is held out of engagement by an arm .111 on the rod 112. An arm 113 is secured to the upper portion of the rod 112, and a hinged end 114 of the arm is pressed down byspring 115. The hinged end 114 of the arm is pressed against the stack of disks 86 by the spring 116, and when a certain number of ,disks are removed from the top the arm 113 is rotated over the stack of disks 86.

released and engages the ratchet wheel 102;

the movement of the rod 105 causes the l ratchet Wheel 102 and the shaft 101 to be rotated, and through the geared connections to raise the stack of disks 86 and to lower the'weight 92. Raising the disks raises the hinged arm 114 which has swung overthe disks, and before the next disk is picked of the disk stack the turret 3 rotates and is lowered. A in117 with a beveled edge is fastened on t e turret and strikes t-he arm :113 as the turret is lowered, causing the arm to be moved over in its first described position ready fork another operation, and at the same time forcing the pawl 103 Aout of en agement with the rotated wheel 102.

n each of the turret armsva, b, and c are passages or ducts 118, (Fig. 3) which lead from the hub to the outer end of the arm;

'length that it embraces two of the ducts 118 at the same time. The exhaust port 128 is of a length to embrace one of the ducts 118 and the exhaust opening 121 in the plate 120 when the turret is in one of its stop positions. The end or head of each arm supports a shaft 129 which has a ball bearing 130 to allow free rot-ation and a coil spring 131 presses the shaft/downwardly. This shaft has a suction head 132 with chambers 133, a plurality of suction chainbers 135, (see Fig. 5) opening on the bottom face adjacent a disk 136, openings 134, connecting chambers 133 and 135 and passages 137 to connect the chambers 133, 135 with the duct 138 in the shaft 129. About the shaft 129 near the duct 118 is yan enlarged opening 139. A passage 140 connects the duct 138 in the shaft 129 with the opening 139, and it is evident that when the valve '119 is in a certain position an airtight passage way is completed from the opening 122 in the shaft casing through the turret shaft 4, arm ducts 118 to the suction openings 135. Around the edges of these latter openings 135 are grooves which contain or hold aA strip of material 141 such as rubber. This material makes better contact'with the disks than the metal edges of the suction chambers. A plurality of chambers 135 is provided so that if airtight connection is not made with the disk by one or more of the chambers, the others will have sufficient strength to hold the disk. An air pump is continuously connected to the opening 122, and the valve 119 is automatically varied to complete the opening to atmospheric pressure by way of the exhaust opening 121 as Well as the air suction passageway. A disk centering device is located in the head 132 which comprises a round member 142 with a project-ing piece held in the head by the set screw 143, a

spring 144 pressing it downwardly to center the disk when it is picked up off of the supply stack by the air suction.

A modified form and method of operating part of my machine shown by Fig. 13. This is simiar for the most part to Fig. 3, with the exception that the shaft 4 is rotated,'raised and lowered by the pressure devices 145, and 146. These are governed

byvalves

147 and 148 respectively andthe valves are operated by the arms 59 and 65 which are similar to the arms 59 and 65 of Fig. 3. The turret 3 contains pneumatic ducts, and rotates intermittently, as does turret 3, but is not raised and lowered. The shaft 4 extends through the turret 3 and supports the auxiliary turret arms d, c, The Shafts 129 are secured inthe said arms d, e, f, and pass throughV the ends of the arms a, c to support the suction heads 132. By this arrangement the ltur,l`

ret 3 Which'contains the air duct is not raised andlowered, the shaft 4 does not have an air duct and the valve-119 is 'loi cated in the stationary casting 149.

Fig. 14 shows a detail of one of the pressure devices, comprising a cylinder 152, piston 154, piston rod 153, valve rod 150, pressure opening 151 and exhaust opening 155.`

In order that the preferredA form of my invention may be more readily understood, the operation will be set forth in detail.

Assuming that the driving pulley 5 is being rotated, the machine is started by pressing the footy-lever 17 to apply the clutch device 14;-lthis causes the shaft 6 to be rotated, the rod 34 being pressed over by the spring l31 to lock the rod 16 'in its downward position by means of the block v36. 'The toothed wheel 16 is moved around by the ratchetv tooth 24 until the pin 31 strikes the lever 32; the lever moves the rod 34 releasing the rod 16 and the clutch device 14 and applying the clutch 48. This clutch causes the auxiliary shaft 40 to be rotated by means of a gear wheel connection with the intermediate shaft 41 which is directly connected to the main shaft 6. When the toothed wheel 16 is being rotated 'the turret- 3 is-in its lowermost position so that the suction head on the arm c rests on the stack of disks 86 which is held by the arm the valve 119 is then in the position shown by Fig. 6 and the port openi ing 127 completes a suction passageway' from the suction chambers 135 in the turretarm c to the air pump opening 122, causing a single disk to be picked up and held. As the auxiliary shaft 40 is rotated the irregu lar groove 58 in the member 56 causes the lever arm 65 to move and through its connections to raise the shaft 4, the turret 3 and with it the disk. The shaft 4 is then rotated one-thirdv of a revolution by the rack 62 which is operated by means of the army 56 and the irregular groove 57. Rotation of the shaft 4 causes the turret 3 to be rotated by the ratchet 71. The locking pawl 74 engages inone of the openings 76 to stop 119 rotates with them and takes the position shown by Fig. 7. The shaft 4 is then ing cn the die plate 12 beneath the'slotting f disks or slots.

die 9. The cam 51 on the shaft 40 is operated to push down on the rod 54 attached to the foot lever 17 at lsubstantially y.the same time the clutch 48 is released, thus stopping thevshaft 40 and setting the slotting device and disk rotating shaft 15 in motion to slot the edge of the disk. Automatic stopping of the slotting device and starting of the turret rotative means is effected inthe same Way as previously set forth, the succeeding arm b picking a disk off the disk stack. The slotted disk 'is still held by the suction head and the arm c is rotated to the position. of arm b in Fig. 1, directly over the receiving shaft 79. When the valve 119 is again reversed, the air pump connection through port 127 is cut off and the port 128 opens a passage- Vway from the suction head in the arm c through the opening 121 to atmospheric pressure. This releases the disk and lit drops upon the shaft 79. The nextL step or rotation of the turret 3 rotates the arm c to its original position While another disk is picked up and the same operation repeated. Since the turret arms are all similar t-he operation of all of them is alike, and it is evident that this operation is continuo-usv and automatic. The operation of the disk feeding device in Which the position of the Weight 92 is varied to balance the stack of disks 86 has been explained.

To stop the machine it is necessary only to release the rod 16 from its pressed down position by moving the rod 34, thespring 18 forcing it upward. The clutch device 48 automatically releases after Vone revolution ofshaft 40, so if the disk rotative shaft 15 is not operated the shaft 40 Will not be actuated and the machine stops at t-he proper time. y

It is seen that the operation of the machine is entirely automatic t from start to finish, it being necessary onlyt-o supply the blank disks and to remove them, slotted and stacked upon the armature shaft. The machineis readily adapted for different sized It is of course evident that i those skilled in t-he arts to Which this invenparting from the spirit and scope of the in-4 of a punch press to punch disks, pneumatic means to pick up and hold a disk and mechanical means operable While. the disk is thus held to feed the same to and remove the same from the press.

2. In a unitary mafhine, the combination -of a punch press to punch disks, pneumatic means to pickup a disk, and mechanical means to feed the same to and remove the same from the press,'the pneumatic means acting to hold the disk throughout the operations of the feeding and removing-the same from the press.

' 3. In a unitary machine, t-he combination of a punch press to punch disks, pneumatic means to pick up a disk, mechanical means to feed the same to and remove the same from the press, the pneumatic means acting to hold the disk throughout the operations of the feedingand removing the same from the press, and means to release the disk from the pneumatic means.

4. In an automat-ic disk slotting machine, the combination of pneumatic means for picking up and holdingdisks, means. for

feeding'the same to and rotating the same beneath the -slotting members and away therefrom when slotted, and means for releasing the disks at a given place.

5. In a disk slot-ting machine, the combinatio-n of a slotting device, a revoluble turret having projecting arms, means in conjunction with each arm for picking up and holding a disk, a device for intermittently rotating the turret, and means for rotating a disk beneath the slotting device While held by said holding means.

6. In a disk slotting machine, the combination of a vertically movable turret With projecting arms, pneumatic means in each arm 4for picking up and holding a disk, a y,

shaft for raising, lowering and rotating the turret, and an automatic clutch device to connect the said auxiliary shaft to a main operating shaft.

8. In' a-disk feeclingand slotting machine, A

the combination of main operating shafts therefor, an auxiliary shaft, a revoluble verticallymovable turret for feeding the disks, means in conjunction With the said auxiliary turret, and an automatic clutch device intershaft for raising, lowering, and rotating the mittently operable'to connect the said auxilf iary shaft to a main operating shaft.

lock the turret in 'certain locked.

10. In a disk feeding and slotting machine, the combination of a revoluble vertically movable-feeding turret, main and auxiliary shafts, a slotted member mounted on an auxiliary shaft, a lever guided by one of said-slots and operative intermittently to rotate the turret, and another lever guided by another slot and operative to raise the turret before' the rotating-lever is operated and to lower the turret after it has been rotated.

11. In a 'disk feeding and slotting machine, the combination of a revoluble vert-ically movable feeding turret, main and auxiliary shafts, a slotted member mounted on an auxiliary shaft, a lever guided by one of said slots and operative intermittently to trotate the turret, openings in the underside of the turret, a spring-pressed pawl to engage therein and to lock the turret after an intermittent rotation, and a lever guided by a slot in the slotted member operative to raise lthe turret clear of the locking pawl before the rotating lever is operated and to lower the turret after it has been rotated and locked against further rotation.

12. In a disk feeding and slotting machine, the combination of a revoluble feeding turret, a vertically movable shaft for supporting the turret, main and auxiliary driving shafts, levers in connection therewith and operated thereby to effect the raising, lowering and rotation of the turret shaft and the turret, and a braking device about the said turret shaft.

13. In a disk feeding and slot-ting machine,'the combination of a revoluble feeding turret, a-main shaft, an auxiliary shaft, means to connect the main and auxiliary shafts, devices in connection with the latter to rotate the said turret step by step, means in connection with the main shaft to rotate a disk under the slotting device independently shafts, devices in connection with the latte'r to rotate the said turret step by step, meansy in connection with the main shaft to rotate a disk under the slotting ldevice independpositions, andy means to slot the disks while the turret is of the rotation of the turret, and means operated by the auxiliary shaft"` to automatically set the disk rotative means` ently of the. rotation ofthe turret, and automatic means in conjunction with rthe -disk rotative device to lock the slotting device and to effect the rotation of the auxiliary shaft.

15. In a disk feeding and slotting machine, the combination of a revoluble feeding turret, a main sliaft, an auxiliary shaft, means to connect'the main and auxiliary shafts, devices in connectionwith the latter to rot-ate the said turret step by step, means in connection with the main shaft to rotate a disk under the slotting devlce independently of the rotation of the turret, means automatically operated by the disk rotating ldevice after Ione complete revolution thereof tolock the slotting device and the disk rotative means and tol effect the rotation of the auxiliary shaft after one revolution and effective to set the slotting device and the disk rotative device again in operation. 16. In a disk feeding and slotting machine, the combination of a main shaft, an

auxiliary shaft, a geared shaft connected to the main shaft, a single revolution clutch operative to connect the geared shaft and the auxiliary shaft, a feeding turret rotated by the auxiliary shaft, disk rotative and disk slottlngfmeans operated by the main shaft, a clutch to render operative the last named means, a foot lever initially to operate the said clutch, a slidable rod carrying a cam and a locking nut to keep the foot lever and the clutch in position, a lever to control the rod, a pin carried bythe disk rotative means and operative to engage the lever to operate the single revolution clutch and to release the other clutch, and a cam device'in connection with the auxiliary shaft automatically to again operate the foot lever when the said shaft. has made one revolution.

17. In al disk feedingy and slotting machine, the combination of a feeding turret with projecting arms, a main shaft, an auxiliary shaft, means operated thereby to rotate the turret step by step, disk rotating and slot-ting mechanisms, means to automatically operate the said mechanisms alter-.

' said ducts.

18. In a disk feeding and slotting machine, the combination of a feeding turret with projecting arms, a main shaft, an auxiliary shaft, means operated thereby to rotate the turret step by step, disk rotating and' slotting mechanisms, means automatically to operate the said mechanisms alternately with the turret rotative means, ducts in thesaid arms, and a valve operated as the turret is rotated.

19. Ina disk chine, the combination of a feeding turret feeding and slotting v1ra-- the turret, a main shaft, intermediate connections between'. the said shafts, means to rotate the turret intermittently in one direction and the turret shaft in both directions',

pressure duets in lthe turret arms, and a valve reciprocated with the turret shaft and operative toprovide pressure and. exhaust port openings for each of the ducts in alternate succession.

21. In a .disk feeding and slotting ma'- chine, the combination of a feeding turret with three arms, pressure ducts in the arms,

la shaft to support the turret, ay main shaft,

intermediate connections between the said shafts, means to rotate the turret intermittently in one direction one third of a revolution at each'step and to rotate the tur` ret shaft in both directions, a duct in the turret shaft, and a valve operated by the turret shaft and coperating with the duct in the turret shaft to provide different port openings fort-he ducts in the turret arms.

22. In a disk. feeding and slotting machine, the combination of a feeding turret with three arms, pressure ducts in the arms, a shaftto support the turret, a main shaft, intermediate connections between the said shafts, means to rotate the turret intermittent-ly in one direction, a duct in the turret shaft, an air exhausting connection with the said duct, and a valve operated by the turret shaft and effective to provide connections to exhaust air from the'arm ducts and i to admit air thereto at atmospheric pressure.

v23. In a diskk feeding and slotting machine, the combination of a feeding turret with three arms, pressure duets in the arms, a shaft to support the turret, a main shaft, intermediate'connections between the said shafts, means toy rotate the turretintermittently in one direction, a duct in theturret shaft, an air pump connection thereto, an atmospheric inlet opening and a valve in connectionj with the turret shaft operative toffma'int'in a 'passage simultaneously between'ftheairxpump and two of the arm ducts and between the other arm and the said inlet openin' 24. In a disk feeding and slotting mafchine',' the combination of `a feeding turret with projectmg arms, pressure ducts in the arms extending from the hub to the end of operated thereby to ro-v the arm, suction chambers at the end of each arm having a passage communicating with the said ducts, air pump and exhaust connec-l tions, and a valve operated as' the turret ref volves to provide air pump4 and exhaust connections for'the said suction chambers.

25. In a disk feeding and slottingmachine, the combination of a feeding turret with projecting arms, pressure ducts in the s arms extending from the hub to the end of rotatable and movable up and down in the 'vidin a passage from the duet to the said cham ers, and means automatically to change port openings to the said ducts. l

26. In a diskA feeding and slotting `ma chine, the combination of a feeding turret with projecting arms, pressure ducts in the arms extending'from the hub to the end of the arms, suction chambers, a member freely rotatable and movable up and down in the arm supporting said chambers and providing a passage from the duct tothe said chambers, and a centering device for disks carried 'by the said member.

27. In a disk feeding and slotting ma- With projecting arms, pressure ducts in the arms extending from the hub to the end of the arm, suction chambers at the end of each arm having a passage communicating with 'j the said ducts, air pump and exhaust con-v nections, means for intermittently rotating the turret step by step, a valve, means to reciprocate the valve, and means coperating with the valve to automatically connect the pick up a disk and hold the same while the turret is rotated and to open the exhaust connection when vthe disk has been rotated to a predetermined position.

chine, the combination of a three armed feeding turret, a disk feeding stack, a disk discharge receiver, pneumatic ducts in the tently rotating the turret, suction and disprovlde ports for the said connections, and

the disk feeding stack by one of the arms by is rotated two ste s disk upon the disc arge receiver. 29. In a'disk feeding and slotting ma- -chine, the combination of a disk feeding stack, and -a disk discharge receiver equally disposed with respect to the slotting device and to each other, a three armed vertically movable and revoluble turret, pneumatic passages inthe arms, pneumatic suction chambers at the ends of the arms having connection with the said passages, me-

chanical means for raising, rotating and the arm, suction chambers, a member freely 28. In a disk feeding andslo'tting ma-l means automatically to pick up a disk from suction and to hold the same while the arm and then to drop the arms, supporting said chambers andl pro- M chine, the combinati-on of a feeding turret air pump to one of the suction chambers to I turret arms, mechanical means for intermitcharge connections for the ducts, a valve to valve changed to the air inlet o'pe'ni'n'gtov allow the disk to drop on the discharge re ceiver. A

30. In a disk feeding and slotting machine, the combination of a feeding turret with projecting arms, mechanical means intermittently to rotate the turret, mechanism to slot the disks, a discharge receiver for slotted disks, means for stacking the disks on said receiver, a disk feeding device, and

means automatically to raise the disks on the feeding device.

31. In a disk feeding and slotting ma# i chine, the combination .of a feeding turret with projecting arms, mechanical means intermittently to rotate the turret, a receiver for slotted disks, an arm projecting from the machine, a shaft to support a stack of blank disks mounted in the said arm, and means automatically to raise the blank disks to keep the top disk within prescribed limits.

32. In a disk feeding and slotting machine, the combination of a feeding turret with projecting arms, mechanical means intermittently to rotate the turret, a receiver for slotted disks, an arm projecting 'from the machine, a 'shaft to support a stack of blank disks mounted in the said arm, a compensating weight device to balance the disk st-ack, and means automatically to vary the balancing weight in accordance withthe height of the disk stack.

33. In a disk feedingA and slotting machine, theVcombinatio-n of a feeding turret, main and auxiliary shafts, means in connection with the latter automatically to rotate the said turret, a disk holding device to supply -disks Ato the turret, a balancing device therefor automatically variable to compensate for removed disks, and means in connection with the said auxiliary shaft positively to operate the said device.

' 34. In a disk feeding and slotting machine, the combination of a feeding turret, main and auxiliary shafts, means in connection with the latter automatically to ro.

tate the said turret, a disk holding device to supply disks to the turret, a balancing devicetherefo-r to compensate for removed disks, a ratchet device to operate the balancing device from the auxiliary shaft, and means automatically to eect the operation of the said ratchetdevice when aprescribed number of disks have been removed.

35. In a disk feeding and `slotting machine, the combination of a feeding turret,

to swing over the stack of disks when a .main and auxiliary shafts, means in connection with the latter automatically to rotate the said turret, a disk holding device to supply disks to the turret, a balancing device therefor to compensate for removed disks, 'a ratchet wheel for the balancing de- A 1 vice, a ratcheting device connected with the auxiliary shaft, anda' rod with levers one ,A

rei scribed number are removed, another to old the ratchet-ing device out of engagement with the ratchet wheel until the first lever swings over the stack of disks.

36. In a disk feeding and'slotting machine, the combination of la feeding turret, main and auxiliary shafts, means inconnection with the latter intermittently to rotate the turret, and avdisk holding device comprising a longitudinally slotted shell shaft, a shaft ymovable within the shell shaft carrying a disk supporting head and provided with a toot-hed rack, a weight to balance the weight of the disks, a cam having a varying radius to support the weight, gear wheels connectingr thc cam and the said rack and means automatically to rotate the gear wheels to raise the movable shaft and to rotate the said cam to vary the weight in accordance when disks are removed from the stack.

37. In a disk feeding vand slot-ting machine, the combinationof avfeeding turret, main and auxiliary shafts, means in connection with the latter automatically to rotate the said turret, a disk holding device to supply disks to the turret, a balancing device there-for to compensatel forremoved disks, a ratchet wheel for the balancing device, a ratcheting device connected with the auxiliary shaft, and a rod with levers one hinged and a. spring attached thereto to swing thelever over the stack of disks when -ative to raise the disks and the hinged lever,

and pins attached to the turret to engage the lever and to return the same to its first position.

38. In a disk feeding and slotting machine, the combination of a slotting device, a revol'uble feeding turret therefor, a disk holding supply device, pneumatic means in connection with t-he turret, automatically operable to pick-up a disk and hold the same during the operation thereon of the slotting device, an adjustable receiver support comprising an arm, and a shaft supporting holder adjustablefor different sized shafts, and' means whereby the pneumatic pressure holding a disk is released at a predetermined time to drop the disk.

39. In a machine of the character described, the combination of mechanism forl slotting` the periphery of a disk, means to hold asup ly of'disks, and means o erable automatica lyto carry the disks to te slotl.ting mechanism, eiect` the operation of said mechanismand remove and stack the slotted disks. I 40.. In a' slotting machine, the-combination of a holding punch, a rotatable turret,

a disk holder rotatably mounted in the turret, means .for rotating the turret and' carrying each disk into position to be.ope1'- ated upon by the punch, andy mechanism ,for

tion of a rotatable turret,a neumatic disk holder rotatably supported ry the turret, means to cause sai holder to pick up; a

disk, afslottn punch, means for rotating 20 the turret an `transferring the disky to a position beneath the punch, and means for 1m arting al ste by step rotation tothe said ho der and dis and voperating the'punch While the disk is held by said holder.

In testimony whereof, 'I have signed my name to this specification in the presence of two subscribing witnesses.

` WILLIAM DEATS.

Witnesses: A

F. O.'DU'1'roN, GEORGE D. ROSE.