US1008784A - Machine for trimming cups or shells. - Google Patents

Description

M. F. GAHILL. MACHINE FOR TRIMMING CUPS 0R SHELLS.

APPLICATION FILED JAN. 10, 1910. RENEWED 0011.4, 1911.

Patented N0v.14, 1911.

4 SHEETSSHEET 1. 2.6

j. (aw/4 flm COLUMBIA PLANDCIRAPH cm. WASHINGTON, v.1;

M. F. O'AHILL.

MACHINE FOR TRIMMING CUPS OB. SHELLS.

APPLICATION FILED JAN. 10, 1910. RENEWED 00:1. 4, 1911.

Patented Nov. 14, 1911.

4 SHEETS-SHEET 2.

COLUMBIA PLANOGRAIII cm. WASHINGTON, I). 1:4

M. F. GAHILL.

MACHINE FOR TRIMMING CUPS OR SHELLS.

APPLICATION FILED JAN. 10, 1910. RENEWED 011T. 4, 1911. 1,008,784. Patented Nov. 14,1911.

4 $HBETB-SHEET 3.

COLUMBIA PLANQGRAPM 10.. WASHINGTON. D. c.

M. F. CAHILL.

MACHINE FOR TRIMMING CUPS OR SHELLS.

I APPLICATION FILED JAN. 10, 1910. RENEWED 001.4, 1911. 1,008,784.

Patented Nov. 14, 1911.

4 SHEETS-SHEET 4. W m

Nwvxasszs'.

MICHAEL F. CAI-TILL, 0F BOSTON, MASSACHUSETTS.

MACHINE FOR TRIMMING- CUPS 0R SHELLS.

Specification of Letters Patent.

Patented Nov. 14, 1911.

Application filed January 10, 1910, Serial No. 537,216. Renewed October 4, 1911. Serial No. 652,788.

To all whom it may concern:

Be it known that 1, MICHAEL F. CAHILL, a citizen of the United States, residing at Boston, in the county of Suffolk and State of Massachusetts, have invented certain new and useful Improvements in Machines for Trimming Cups or Shells; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The machine of the present invention is designed to trim oi the peripheral edge of the wall of cups or shells.

The object of the present invention is to provide a simple and automatic machine comprising feeding mechanism for delivering the cups or shells to be trimmed to the trimming mechanism and automatic means whereby said cups will be properly clamped and presented to the trimming cutter and thereafter automatically ejected from the machine.

To the above ends the present invention consists of the devices and combinations of devices which will be hereinafter described and claimed.

The present invention is illustrated in the accompanying drawings, in which Figure 1 shows the machine in front elevation. Fig. 2 shows a vertical sectional view taken on the line A-B, in Fig. 1. Fig. 3 shows a top plan view. Fig. 4 shows a longitudinal vertical sectional view through the cup holding chuck and the clamping and trimming mechanism, with the parts in the position they assume at the time a trimmed cup is discharged from the chuck preliminary to its beginning another advance movement. Fig. 5 shows a similar view somewhat enlarged, with the parts in position for performing the trimming operation. Fig. 6 shows a vertical sectional view through the lower end of the race-way and the cup holding chuck, the section being at right angles to those shown in Figs. 4 and 5.

Similar reference characters will be em ployed throughout the specification and drawings to designate corresponding parts.

The machine comprises a suitable frame, which as shown in the drawing, may consist of the bench comprising the metallic standards 1 and 2 supporting the top or table 3, and upon which is mounted the end standards 4 and 5 connected by the slotted table be connected and disconnected, at the will of the operator, to the shaft 7.

The latch 14 is arranged to be depressed against the tension of its spring to permit the clutch mechanism to connect the pulley 12 to the shaft 7 by means of a rod or link 15, connected at its lower end to a lever 16 pivoted at 17, which lever is engaged at its opposite end to be depressed by a lever 18 pivoted at 19 to a stand 20, and the lever 18 in turn is engaged at its opposite end 21 by a foot treadle 22, pivoted to a stand 23, the arrangement being such that when the operator places his foot upon the foot treadle 22, it will rock the lever 18, thus depressing the lever 16 and through the link 15, withdrawing the latch 14 from engagement with the clutch mechanism, which will be actuated by a spring in a manner well known to those skilled in the art, to cause the clutch to lock the pulley 12 to the shaft 7 and so long as the operator retains his foot upon the foot treadle 22, the machine will continue to operate.

To relieve the operator of the necessity of holding the foot of treadle depressed by his foot, I have provided a spring catch 221, for engaging the treadle and so long as the treadle is held down by the catch the machine will run.

Upon releasing the foot treadle, the latch 14 will be elevated by its spring to release the clutch and permit the free running of the pulley 12 without transmitting motion to the shaft 7. This clutch mechanism is not described or illustrated in detail, as it receives the cup to be trimmed, the trimmerand chuck, in the machine of the drawing, being located in a horizontal position and in axial alinement, the chuck and trimmer being arranged to have a relative reciprocating movement, which in the machine of the drawing is provided by imparting reciprocating movements to the chuck, said chuck in its movements taking from a race-way 7 or a rest or seat to be described, a cup to be trimmed and presenting it to the rotating trimming cutter, and upon a reverse movement discharging the trimmed cup preparatory to receiving another cup or ferrule upon its next advance movement, the delivery end of the race-way being located between the trimming cutter and the reciprocating chuck and adjacent the path of movement of the chuck, so that as the chuck advances toward the cutter it will pick from the delivery end of the race-way, or a rest forming a part of the feeding mechanism, the lowermost cup in the line of cups in the race-way.

The feeding mechanism comprises a sorting table 24 which may be an ordinary shelf or table, as shown in the drawings, but will preferably be the automatic distributing and feeding mechanism which I have both described and claimed in my co-pending application of even date herewith.

The table 24 is shown in the machine ofv the drawing as being supported by an inclined brace 25, and as being surrounded by a flange 26, and the cups being placed on the table with their open ends uppermost, as shown clearly in Fig. 3 of the drawing. The table 24 is connected to an inclined chute or race-way 27, which extends downward to a point adjacent the path of movement of the reciprocating chuck. The raceway 27 consists of a base plate 28 forming a part of a casting 29, which at its upper end 30 extends beneath the table 24. At its lower end the cast-ing 29 is connected to a block 31, adjust-ably mounted on said table 6 by means of headed bolts 32 which pass through the slot 33 of the table 6. The race-way further consists of the thin plates 34 and 35 angularly bent in cross section for a portion of their length which are attached, by means of the brackets and screws 37, to the upper surface of the plate 28.

As shown clearly in the drawings, the plates 34 and 35 forming the chute or raceway are given a quarter twist or turn so that while the cups will be received at the enter-. ing point 38 of the race-way with their openperipheral edges uppermost, they will at the time they reach the discharging end of the race-way be turned at right angles so that the open peripheral edge will extend toward the left, or toward the trimming cutter, and their opposite end toward the right or to ward the chuck, all as clearly shown in the drawings.

The table 24 will preferably be provided with suit-able converging guides 39 leading to the entering end 38 of the race-way. At its lower end the race-way is provided with a spring actuated detent 40, acted upon by a spring 41 and arranged to engage the lowermost cup in the line of cups, which will be discharged from the race-way onto a and be held by the spring detent 40 in the path of movement of the reciprocating chuck. The extent of upward movement of the saddle or rest 41 is limited by an adjusting screw 46 tapped into a threaded bearing 47 in the block 31, which is surrounded by an arm 47 extending outwardly in a horizontal line from the shank or stem 42, the arm 47 being free to move along the adjusting screw 46, its upward movement being limited by the under side of the head of the stud 46, the arrangement being such that the vertical position of the rest or saddle 41 which elevated by spring 44 may be accurately. adjusted so as to position it to hold and support the lowermost cup in a vertical position corresponding to the path of movement of the chuck.

The operation of the parts just described is as follows :When the chuck is in the p0- sition shown in Fig. 4, the saddle or rest 41 will be held elevated by its spring 44 and will support the lowermost cup in the line ofcups. As the chuck advances, it will by its beveled end (which will be hereinafter described) as it engages the cup or ferrule supported by the rest or saddle, depress the plunger 42 slightly against the tension of the spring 44 and it will also engage and raise the detent 40 to the position shown in Fig. 6, and hold and restrain the downward movement of the line of cups in the raceway. As the chuck is retracted to the position shown in Fig. 4, as it passes away from the lower end of the race-way and the saddle or rest 41, the line of cups will be permitted to drop by gravity, the lowermost one dropping into the saddle or rest 41, where it will be held by the detent 40 in position to be picked up by the next advance movement of the chuck.

The chuck 48 consists of a cylindrical tube slotted as shown at 49, producing the yielding clamping jaws 50, in the machine of the drawings there being four such slots spaced ninety degrees apart, thus producing four spring jaws. The rear end of the chuck is connected, as by means of the mating threaded connection 51, to the reciprocating carrier 53. At its forward end the jaws 50 of the chuck will be provided with the external beveled surfaces 54 for a pur pose to be hereinafter described, and with the internal gripping surfaces 55 and the shoulders 56, one end of the ferrule or cup being received within the gripping surfaces 55 and abutting against the shoulders 56, it

being forced therein until it rests against the shoulders 56 by means which will bev hereinafter described.

The carrier 53 may be of any suitable shape in cross section, but as shown in the drawing, it is preferably circular in cross section and is reciprocated in bearings 57 and 58 carried by the upwardly extending arms 59 and 60, of the stand 61, which stand is adjustably mounted upon the upper surted, as shown at 63, which slot is engaged. by the cylindrical stem 64, of a threaded. screw 65 tapped into the upper surface ofi the bearing 58.

This screw also performs;

another function which will be hereinafter.

referred to.

The carrier 53 is reciprocated in its beari ings 57 and 58 by means of a lever 66, which f is pivoted at 67 to the standard 5, and atits upper end is forked, as shown at 68, to engage the trunnions 69 of a swiveled head 70 mounted to rock or pivot upon a stud 72 having a threaded connection 73 with the outer end of the carrier 53. By adjusting the stud 72 by means of its threaded connection 73, the limit of the reciprocations of the carrier 53 and its chuck may be secured with great nicety.

The lower end 74 of the lever 66 is engaged by a cam mounted on the main shaft 7, said cam acting to rock the lever 66 to advance the carrier 53 and the chuck toward the trimming cutter, the retracting movement of said carrier 53 and chuck being secured by means of a spring 76 connected at one end to the arm 74 of the lever 66 and at its opposite end to the standard 4, as shown clearly in Figs. 1 and 4 of the drawing. The above arrangement is such that the cam 75 will, during its rotation, rock the lever 66 to advance the carrier and its chuck toward the trimming cutter, and the spring 76 will rock the lever in the opposite direction, holding it at all times in contact with the cam 75 to retract the carrier 53 and the chuck. It is desired that the reciprocations of the carrier 53 and its chuck be at varying speeds during the movement toward the trimming cutter, that is to say, it is desirable that as soon as the edge of the cup comes into position to be acted upon by the cutter its advance movement shall be at a comparatively slow speed so as to permit the rapidly revolving cutter to progressively trim off the peripheral edge without liability of digging into the edge, which would be the result of a too rapid advance of the cup toward the cutter. On the other hand, in order to provide for the desired high speed of operation of the machine, the reciprocations of the carrier toward and from the trimming cutter is greatly accelerated for the greater part of such reciprocating movement. In other words, the carrier and chuck, starting from the position shown in Fig. 4, will be rapidly advanced toward the cutter until it has moved sufliciently to bring the edge of the cup into engagement with the trimming cutter. Thereafter the speed of its advance movement is reduced during the trimming operation. Thereafter its return movement is performed at the increased speed and this operation is produced by the cam 75, as shown.

From the point a to the point 5 on said cam and running beneath said cam, as shown in Fig. 4, occur the rapid advance and retracting movements of the carrier, and from the point I) to the point a above said cam, as said cam is shown in .Fig. 4, occur the relatively slow movements, all as will be clear to those skilled in this art.

One of the jaws of the chuck is cut out or grooved longitudinally, as shown at 501 in Fig. 6, thus permitting the next cup in line to rest in such groove during the advancing and retracting movement of the chuck past the end of the race, the arrangement being such that the chuck may cut out the cup held in the seat or rest and pass the next cup in the line of cups without disturbing in the slightest degree the line of cups in the raceway.

The internal diameter of the cup receiving chamber in the end of the chuck is substantially the same as the external diameter of the cup and it is necessary that as the chuck advances to pick up the cup supported by the seat or rest 41, the cup be forced into the chamber, to be frictionally held as the chuck advances toward the trimming cutter. To secure this result I have provided a yielding pusher arranged to be held against I pusher is shown as consisting of a plate 7 7 carried by the upwardly eXtending arm 78 of a lever 79, which is pivoted at 80 to the side of the slotted table 6'. The pusher 77 when the parts are in the position shown in Figs. 1 and 3, extends inward and in the path of movement of the chuck in position to engage the peripheral edge of the cup, which rests upon the rest or saddle 41, as it is picked up by the chuck. After the pusher has assisted in seating the cup in the chuck, it is depressed and removed from the path of movement of the chuck by means of a cam 84 carried by the shaft 7, which engages the downwardly extending and inclined arm 85 of the lever 79.

As shown in Fig. 1, the cam 84 bears such relation to the cam 7 5 which actuates the chuck, that during a greater part of the forward and backward reciprocations of the chuck the arm 85 will be held in a raised position against the tension of the spring 81,

thus depressing the arm 78 and retaining the pusher 77 out of the path of movement of the chuck, and as the carrier 53 of the chuck moves the chuck in its backward movement past the lower end of the race-way the cam 84 will permit the spring 81 to return the arm 78 and the pusher 77 to the position shown in Figs. 1 and 3 of the drawing, and to hold it there until the next forward reciprocation of the carrier 53 has carried the chuck to a position to engage the cup supported in the rest or seat 41.

The trimming cutter 86 may consist of any usual or preferred form of cutter head having a beveled face 87 and carrying a suitable cutter 88, adjustably held by means 1 of a screw 89 to the beveled face 87 of the cutter head. The cutter head 86 is detachably mounted by means of the threaded connection 90 to a hollow shaft 91 mounted to revolve in bearings 92 and 93 carried by a block 94, adjustably supported upon the slotted table 6 by means of the threaded bolt 95, the shaft 91 being provided between the bearings 92 and 93 with a belt pulley 96, driven by a belt from any suitable source of power.

As shown in Fig. 5, the chuck carries the cup to be trimmed into position to be operated upon by the rapidly revolving cutter cup during the operation of the trimming cutter on its peripheral edge, and to secure the uniformity in height of the walls of the trimmed cups it is essential that the cup be firmly seated in the chamber in the jaws of 'the chuck and against the shoulders 56 carried by said jaws, and this seating of the cup against the shoulders'56 must take place prior to the clamping of the jaws.

To secure the seating of the cup in the chamber 55 and against the shoulders 56, there is provided a plunger 97 carrying a head 98 which projects beyond the cutter and beyond the jaw clamping device, in poming, such punching usually leaves a narrow inturned flange at what would correspond to the closed end and the cup may be seated in the chuck by the plunger engaging such flange. This plunger 97 passes through the bore 99 in the shaft 91 and the reduced end through a bore 100 in the cutter head 87, and it is normally held yieldingly. in the position shown in Fig. 4 by means of a spiral spring 101 which surrounds the rear end of the plunger 97 and engages a'collar 102 connected to the plunger 97 and the inner face of a bracket'103 through which the rear end of the plunger 97 passes. The bracket 103 is connected to the rear face of the block 94. The above arrangement is such that as the chuck advances toward the cutter, the head 98 of the plunger will engage the inner face of the bottom of the cup' and force it yieldingly into the chamber and against the shoulders 56; thereafter, after the cup has been seated and during the further movement of the chuck and cup toward the cutter, the plunger will yield against the tension of its spring 101. After the cup has been seated as described, the spring jaws 55 of the chuck, which are beveled, as shown at 54, enter a beveled walled aperture 104 in a plate 105 carried by a casing 106 mounted upon rods 107 supported and arranged to slide in bearings 108 and 109, carried by the block 94, and between the bearings 108 and 109 the rods 107 are surrounded by coiled springs 110 acting at one end against the bearings 108 and at their opposite ends against collars 111 carried by the rods 107, whereby the casing and the plate having the beveled walled aperture are normally supported yieldingly in advance of the cutter and in such position as to engage the beveled ends of the jaws of the chuck just after the headed plunger has seated the cup against the shoulders 56, and thereafter the casing 106 will yield toward the cutter against the tension of the springs 110, which tension is sufficient to cause the beveled wall of the opening 104, cotiperating with the bevels 54' of the jaws of the chuck, to

tightly close said jaws against the cup to be trimmed. Thus the cup will be held fixed against any axial or rotary movement or slipping during the operation of the trimming cutter on its peripheral edge.

After the trimming has been completed, the carrier 53 is retracted and the plunger 97 and the casing 106 advance with the chuck until they assume their normal positions as shown in Fig. 4, and the carrier 53 continues its retracting movement until it reaches the position shown in Fig. 4, at which time the trimmed cup will be discharged from the chamber in the chuck by means of the ejector 112, consisting of a cylindrical rod loosely mounted in the bore 113 of the carrier 53 and provided at its forward end with a cylindrical head 114 seated between the project-ions forming the shoulders 56. This ejecting plunger is arranged to have but a limited movement in the chamber 113, just sufficient to eject the cup from the chamber in the chuck, and permit the entry of another cup, and the ejecting movement is secured by a cylindrical rod 115 also located in the bore 113 and held in a fixed position by the shank 64 of the set screw 65, the arrangement being such that the ejecting plunger 112 partakes of the reciprocating movements of the carrier 53 and also has a slight reciprocating movement in its bearing independent of the carrier, whereas the rod 115 remains in a fixed position during the entire movements of the carrier.

As the carrier and chuck advance to pick up a cup to be trimmed, the ejector 112 will be in an advanced position as shown in Fig. 4, where a trimmed cup has just been ejected and it will be forced backward by the entering cup. As the carrier is retracted, the rear end of the ejector 112 as it nears the extreme limit of its retracting movement will be engaged by the stationary rod 115;

thus the movement of the ejector 112 will be arrested and the continued movement of the carrier and chuck will result in the discharge of the cup from the chamber in the chuck. The trimmed cup as it is discharged falls into a chute or race-way 116, from which it drops into a suitable receptacle arranged to receive the same, and to assist and facilitate the discharge of the trinnne'd cup into its race-way I have provided a spring striker 117 fastened at one end by means of a screw 118 to the bearing 57, and at its oppositeend downturned, as shown at 119, normally in the path of movement of the advancing chuck. Thus, as the chuck advances, as shown in Fig. 5, the spring'striker will be moved out of the way, but as the chuck reaches its extreme retracted position, which results in the discharge of the trimmed cup, the downturned arm 119 will strike a sharp blow to the cup, knocking it into the race-way or chute 116. A similar chute, 120, is located beneath the trimming cutter for the purpose of carrying from the machine the chips resulting from the trimming operation.

Inasmuch as the ends of the levers 74 and 85 are held with considerable pressure by the springs 76 and 81 against the cams 75 and 84, there is a constant tendency to force said cams to turn or snap at an increased speed as the high parts pass ofi of said levers, that is to say, the springs have a tendency to turn said cams and, of course, the shaft 7, at a greater speed than the shaft 7 is being turned by the belt pulley 12, and if this were permitted the chuck carrier and the pusher Would-be returned to their starting positions with a snap and a jar, which would be likely to seriously disarrange the parts. In order to prevent this overrunning of the shaft, I have provided a check which consists of a collar 112, which is adjustably secured to the outer end of the shaft 7 in close contact with the hub of the belt pulley 12, by means of the set screw 121. This collar upon its inner face is provided with a notch 113, having a shoulder 114 and an inclined base 115, and in the hub of the pulley 12 is a chamber 116 in which is a spring actuated pin 117 normally pressed against the collar 112 by the spring 118, (see Figs. 1 and 2;) This pin, when the pulley and shaft are connected, is in the position shown in Fig. 1, in contact with the shoulder 114, and thus will effectually prevent the shaft from traveling faster than the pulley; when, however, the pulley is disconnected from the shaft at each revolution the pin 117 will be forced into the chamber 116 against the tension of the spring 118'by means of the incline 115 and will snap out as the shoulder passes it.

In order to prevent any backward turn ing of the main shaft 7 when the machine is stopped and the pulley 12 running loose there is provided a collar 119 adjustably fixed by means of a set screw 120 to the opposite end of the shaft 7 (see Figs. 2 and This collar 119 like the collar 112 has a notch or recess 122, the base of which is inclined in the same manner as the base of the notch 113 of the collar 112, but in the opposite direction, and like the notch 113 the notch 122 has a shoulder 123at the end of the notch.

In a chamber 124 in the bearings is a spring pressed pin 125 which is forced against the collar 119. The above arrange ment is such'that when the collar 119 is properly adjusted with relation to the angular point of stopping of the machine the pin 125 when the machine is stopped will engage the shoulder 123 of the notch 122 and thus prevent the backward turning of the shaft 7 which backward turning would have a tendency to throw the clutch dog 126 into its notch 127 of the clutch member carried by the pulley 12, which would cause a pounding of the clutch dog at each revolution of the pulley 12. When the shaft is running the pin will be forced out of the notch at each revolution.

The operation of my machine is as follows :Assuming that the race-way is filled with cups, the lowermost cup will rest upon the seat or rest 41, beneath the detent 40. The machine being started by depressing the foot treadle 22, which permits the clutch mechanism to connect the pulley 12 to the shaft 7 the cam 7 5 will depress the lever 74 and advance the carrier 53 and chuck 50 toward the trimmer. As the chuck reaches the cup held in the seat or rest it will force said cup against the pusher 77 which forces the cup a short distance into the chuck. Having performed this function, the pusher is quickly removed from the path of movement of the advancing chuck by means of the cam 84: and the lever 85. As the chuck continues toward the center heads the cup will be entered by the yielding plunger 97, which forces it into the chamber in the chuck until it contacts with the shoulders 56, at which time the beveled ends of the spring jaws of the chuck will enter the aperture 104 in the plate 105, the beveled wall of which will compress said jaws against the wall of the cup, tightly clamping the cup in the chuck. The further advance movement of the chuck toward the cutter forces back the plunger and the jaw clamping plate against the tension of the springs 101 and 110 and brings the open end of the cup in contact with the revolving knife 88, which quickly trims off the rough edge and reduces the wall to the desired height. After the cup has been trimmed, the chuck and its carrier recede and as it passes the end of the race-way the pusher 77 is returned to the position shown in Figs. 1 and 3, by its spring and another cup will fall by gravity into the seat or rest. As the carrier and chuck near the limit of their return movement the ejector 112 will come in contact with the fixed rod 115, which arrests the backward movement of the ejector 112, causing it to push the cup from the chuck, when it will be struck by the striker 117 and knocked into the chute 116. This completes one cycle of operations of the machine.

' Having described my invention I claim as new and desire to protect by Letters Patent of the United States j 1. In combination, a trimming cutter and a cup holding chuck located in axial alinement and means to move the cutter and chuck relatively toward and from each other, substantially as described.

2. In combination, a trimming cutter and a cup holding chuck located in axial alinement and means to move the cutter and chuck relatively toward and from each other at a variable speed, substantially as described.

3. In combination, a rotary trimming cutter and a cup holding chuck located in axial alinement and means to move the chuck toward and from the cutter, substantially as described.

4:. In combination, a rotary trimming cutter and a cup holding chuck located in axial alinement and means to move the chuck toward the cutter at a variable speed substantially as described.

' 5. In combination, a rotary cutter, a cup holding chuck, means to impart a relative movement to the chuck and cutter, and means to automatically deliver and seat a cup to be trimmed in the chuck as the cutter and chuck approach each other, substantially as described.

6. In combination, a rotary cutter, a cup holding chuck, means to advance the chuck toward the cutter, a raceway for the cups discharging at a point between the cutter and chuck and means to deliver a cup from said raceway to the chuck as said chuck advances toward the cutter, substantially as described.

7. In combination, a rotary cutter, a cup holding chuck, means to advance the chuck toward the cutter, a raceway for the cups, a restupon which said raceway discharges for receiving a cup and supporting it in the I path of the advancing chuck and means for forcing the cup into the chuck, substantially as described.

8. In combination, a rotary cutter, a cup holding chuck, means to advance the chuck toward the cutter, a raceway for the cups, a rest upon which said raceway discharges for receiving a cup and supporting it in the path of the advancing chuck and a spring support for said rest, substantially as described.

9. In combination, a rotary cutter, a cup holding chuck, means for moving said chuck toward and from the cutter, a raceway for the cups, a rest upon which said raceway discharges, a pusher engaging the cup on said rest to force the same into the chuck, a spring for actuating said pusher in one direction and a cam for actuating said pusher in the other direction, substantially as described.

10. In combination, arotary cutter, a cup holding chuck, means to move said chuck toward and from the cutter and a spring pressed plunger for forcing the cup into the cup chamber in the chuck as said cup is presented to the cutter, substantially as described.

11. In combination, a rotary cutter, a cup holding chuck, means to move said chuck toward and from the cutter, a spring pressed 17.30

plunger movably supported in advance of the cutter to engage and seat said cup in the chuck and a clamping plate for acting upon and clamping the chuck upon the cup after said cup has been forced into the chuck by the plunger and before it reaches the cutter, substantially as described.

12. In combination, a reciprocating chuck, a raceway having its delivery end closely adjacent the path of movement of the chuck and a longitudinal grooved seat on said chuck for the lowermost cup in said raceway, substantially as described.

13. In combination, a reciprocating chuck having spring jaws, means to seat a cup in said chuck, an ejector located in said chuck and movable with and independently of said chuck and a fixed rod for acting upon said ejector for forcing the cup out of said chuck, substantially as described.

14:. In combination, a reciprocating chuck, a spring pressed cam lever for operating said chuck, a cam on the main shaft for moving said cam lever in opposition to said spring, a belt pulley loosely mounted on said shaft, a clutch for connecting and dis connecting said pulley and shaft, a notched collar fixed to said shaft and a spring pressed sliding pin carried by said belt pulley for engaging said notched collar, substant-ially as described.

15. In combination, a reciprocating chuck, a spring pressed cam lever for operating said chuck, a cam on the main shaft for moving said cam lever in opposition to said spring, a belt pulley loosely mounted on said shaft, a clutch for connecting and disconnecting said pulley and shaft, a notched collar fixed to said shaft, a spring pressed sliding pin carried by said belt pulley for engaging said notched collar, a notched collar fixed to the opposite end of said shaft in a reverse position with relation to the first notched collar and a spring pin mounted in the frame of the machine for engaging said second notched collar to prevent the backward turning of said shaft, substantially as described.

In testimony whereof I aflix my signature, in presence of two witnesses.

MICHAEL F. OAHILL. Witnesses:

T. HART ANDERSON, L. K. ALLEN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. G.

It is hereby certified that in Letters Patent No. 1,008,784, granted November 14, 1911, upon the application of Michael F. (Jahill, of Boston, Massachusetts, for

an improvement in Machines for Trimming Cups or Shells, an error appears in the printed specification requiring correction as follows: Page 6, line 25, for the Word 'center read cutter; and that the said Letters Patent should be read with this correctionttherein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this 12th day of December, A. D., 1911.

E. B. MOORE,

Commissionerof Patents.

[SEAL]

Images