US1082669A

US1082669A - Automatic die-press.

Info

Publication number: US1082669A
Authority: US
Inventors: Erastus E Winkley
Original assignee: Individual
Current assignee: Individual
Priority date: 1911-03-14
Filing date: 1911-03-14
Publication date: 1913-12-30
Anticipated expiration: 1930-12-30

Description

El" ET WINKIIEY. AUTOMATIC DIE PRESS. APPLICATION FIL ED MAR.14, 1911.

1,082,669. PatentedDec. 30, 1913.

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- APPLICATION FILED MAR. 14. l 911. 1,082,669,

Patented Dec. 30, 1913.

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APPLICATION FILED MAR. 14, 1 911.

Patented -Dec. 30, 1913;

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APPLICATION FILED MAR. 14, 1 911.

1,082,669. Patented Dec. 30, 1913.

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AUTOMATIC DIE PRESS. APPLICATION IILIID MAR. 14, 1 911.

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AUTOMATIGDIB PRESS. V PPLIOATI N FILED- MAR. 14. 1911 [1,082,669.

E. E. WINKLEY.

AUTOMATIC DIE PRESS. APPLICATION FILED MAB..14. 1911.

1,082,669, Patented Dec. 30, 1913.

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UNITD STTEts PATENT ERASTUS E. WINKLEY, OF LYNN, MASSACHUSETTS.

AUTOMATIC DIE-PRESS.

To all whom it may concern:

Be it known that LERAs'rUs E. VVINKLEY, a citizen of the United States, residing at Lynn, in the countyof Essex and State of Massachusetts, have invented certain new and useful Improvements in Automatic Die-Presses; 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.

This invention relates to die presses. and more particularly to such presses in which articles such as heel lifts or sol'es for boots and shoes are automatically cut from sheet In operating machines of thiskind the material comes to the machine in large sheets and it is the custonrto cut the required articles therefrom in-rows. It is necessary, therefore. to impart both lateral and longitudinal feeding movements to the ma terial or to the cutting die, between succes .sive operations of the latter.

The present invention relates particularly to a machine in which automatic means 15 provided for imparting such feeding movelongitudinal movement to the sheet-mate- "rial, resulting in the production of a succession of parallel, transverse rows of cuts inthe material.

i The object of the invention is to produce an automatic die press of the type described which shall be simple in constructionand rapid in operation, increasing the 'etiiciency of operation over prior art machines, and affording provision for ready adjustability I as may be required.

' The vanous features of the invention relate to certain devices, constructions and ar-- v '1 2, tal en together. are a U ey tion offa machine in which the Specification of Letters Patent. Fatentgfi Egg, 3@, 3 913, Application filed March 14. 1911. Serial No. 614.362.

present invention is embodied. Fig. 3 AS a side-elevation of the complete machine look-' ing from left to right in Fig. 1, Fig. is a s de-elevation looking from right to left in tion looking from left to right showing, in

detail, a portion of the mechanism at the right-hand end of the machine as shown in Fig. 1. Fig. 9 is a front elevation of the parts shown in Fig. 8, Fig. 1Q is an enlarged front elevation of a portion of the mechanism at the lefthand endof the machine as shown in Fig. 1, Fig. 11 is an elevation, partly broken'away, looking from right to left, of the parts shown in Fig. 10, Fig. 11 is a horizontal section on the line 1l'*.11 of Fig. 11, Fig. 12 is auenlarged detail, in side-elevation, showing portions of the sheet-material feeding mechanism, Fig, 13 is a front elevation of a portion of the removable feed-bar by which tlIGShGGt-Iflittktrial is fed, Fig. lei is a detail, partly in section, showing a portion of the feed-table and the side-rail, together with the side-clamp.

by which the materialis held in place on the table, F ig. 15 is an enlarged detail. in longitudinal vertical section, showing the clutch mechanism by which the sheet-mate rial feeding mechanism is connected with the other. parts of the machine.

The illustrated machine. .in general construction. and mode of operation, is similar to the well-known type of die-press or dinking machine in which the material to be cut is laid upon the flatupper surface of a broad cuttingblock, above which is a beam which freciprocates vertically. In machines of this type the die, which generally is either entirely free or is movably supported upon the beam, is moved'over the work by the operator and .so positioned at each reciprocation of the beam as to cut a' row of pieces from cutting-block.

Referring now to the embodiment of the the material upon the invention illustrated in the drawings, and

more particularly to Figs. 1 and 2, the

frame of the machine. At each end of the machine, as shown in Figs. 3 and 4, the lower ends of the rods 24, which are arranged in airs, are connected by a crosshead 25. 0 each cross-head-is pivoted a pitman and eccentric strap 26, which embraces an eccentric at one end of a powershaft 27 iournaled in the ends of the frame of the machine in the usual manner. The

power-shaft is provided with the usual conical clutch-member 28 cooperating with a combined fly-wheel and pulley-member 29. The latter 'member is free to slide and to turn on the power-shaft, and in order to move it longitudinally it is provided with a grooved hub 31 engaged by a ring 32 pivoted to the end of a shipper-lever 33. The lever 33 is pivotally mounted on the frame of the machine. and is ivoted at its upper end to a rod 34 exten ing across the machine. The rod 34 is mounted, near the ends of the machine, upon bell-crank levers 35 (dotted lines Figs. 1 and 2) which are connected, in turn, by means of vertical rods 36, with treadle-arms 37 (Fig. 3) fixed on a The treadle-armscarry, at.

rockshaft g 38. their forward ends, a treadle-bar 39.

By means of springs 41 connecting the treadle-arms with the frame of the machine,

the treadle-bar is normally held in raised position, and through the shipper mechanism just described the clutch-members are held out of engagement, so that the pulley, which is connected with a constantly-running source of power (not shown) rotates freely uponthe power-shaft. machine is to be thrown into operation the treadle-bar is depressed, and the shipper mechanism then operates to engage the clutch-members, and the power-shaft is r'otated, thereby causing the beam 20 to reciprocate vertically. During the continued operation of the machine the treadle may be held in depressed position by means of a latch or detent 42, shown in Figs. 1. and 3.

At the left-hand end of the powershaft is a-brake-drum '47- (Figs. 1 and 3), which is adapted to be engaged by a brake-shoe 43 pivoted at 44 on the frame of the machine. The rock-shaft 38 is provided, at one end, with an arm 46 adapted to engage a screw 45 adjustably fixed in the brake-shoe frame.

When the detent 42 is tripped to release the treadle. it is raised by the springs 41, and,

through the connections just described, the

The sheets of- When -the brake-shoe is moved into engagement with the drum 47, and the mechanism is thus quickly stopped.

The parts of the machine hereinbefore described are all well known to those skilled in the art, the novel features of the present machine residing in the provision of means for feeding the die 21 along the die-carrier or'beam- 20, and for automatically performing other functions not usually automatic in machines of this t 'pe.

Referring now to 1gsf6 and 7, the die 21 is fixed on a die-carriage 51, which is provided with a curved passage 52 above the die so that the outmay pass upward through the die and be discharged from t e front of the head into a suitable receptacle (not shown). The die-carriage 51 issupported upon longitudinal plates or ways 53 fixed on the bottom of the beam 20, being provided with rollers 54 by which it is suspended on the ways and with rollers 55 engaging the edges ofthe ways to prevent transverse movements on -the beam. The die-carriage is thus free to pieces of: material cut move with substantially no friction in a longitudlnal dlrection on. the beam in order that the die may be fed across the sheet of material. Surrounding the die and mounted on the die-carriage isa member 56 which constitutes apresser-foot to hold the material firmly while it is being' cut and also a stripper to facilitate the retraction of the die from the material after the out has been made. The member 56 is supported upon guides 57' which are telescopically mounted on stems 58'projecting downward from the die carriage 51. The stripper is held normall in its lowermost position by means of coi ed springs 59 surrounding the guides 57 The feeding movements of the die upon the die-carrier are produced positively by a four-motion feed-mechanism shown particularly in Figs. 1, 2, 6, 8 and 9. A notched bar, or rack, 61 is mounted upon a shaft 62 extending longitudinally of the beam 20 at its front side, and journaled near the ends thereof. The rack is secured to the shaft by means of heads 63 (Fi 1. and 2) connected by bars 64 (Fig. 6) ant is adjustably fixed to the shaft by a set-screw 60 (Fig. 2). This arrangement is such that the feedrack may be removed or may be shifted upon the shaft where it is necessary to change the length of the die-carriage 51, as shown in Figs. 6 and 7. The shaft 62 is first rocked to cause such an engagement, is then moved longitudinally, carrying the die-carriage and the die with it through a space equal ,to the distance 1,cse,eea

between two notches on the feed-rack, and is then rocked in a reverse direction to disengage the rack from the dog. During the subsequent operation of. the die the die remains stationaryupon the beam 20, while the shaft 62 and the feed-rack return to their original position and then rock again into engagement with the dog 67.

By the operation just described the die is fed positively along the beam by successive movements of equal length, which occur between successive vertical reciprocations of thedieinto engagement with the sheet material.

The rocking movement and the longitudinal movementof the shaft .62 are produced by mechanism which willnow be described. The right-hand end of the shaft 62 is journaled, asshown in Figs. 2 and 9, in a bifurcated bearing 65 on the beam 20. Between the two parts of the bearing an arm 68 is mounted loosely upon the shaft 62 and this arm has a splined connection with the shaft so that the shaft may be rotated with the arm while it free to slide longitudinally through the arm and the bearing 65. As shown in Fig. 9, the arm 68 is of yoke form, being arranged to straddle one part of the bearing 65. To the lower portion of the arm 68 is pivoted the front end ofv a bar 69, the rear end of which is supported in a similar manner at the rear of the beam. The bar 69 carries a centrally-arranged roller 71 which engages a vertically-slotted head '72. This form of connection is employed in order that the vertical movements of the beam may not interfere with the operation of the bar and the arm. Thehead 72 is splined to a horizontal rod 73 (Fig. 8) which is fixed at its ends in uprights 74- on the frame of the machine. The head 72 is thus free to slide along the rod 73 but not to rotate thereon.

'At its right-hand side (Fig. 9) the head' is provided with a slotted guide 7 5 engaged by a roller 7 6 on the vertical arm of a bell crank lever 7 7 which is pivoted on a stud 78 in the frame of the machine. The horizontal arm of the bell-crank lever is-connected,

by a vertical rod 81 (Fig. 8) with a cam lever 82 (Figs. 2 and 4) which-is provided with a cam-roll 83 engaging a cam 84 fixed on the power-shaft 27. The cam-path is so formed as to move the mechanism above described at proper timesto swing the arm 69 and thus rock the shaft (32 and the feed-rack 61 into and out of engagement withthe dog 67. As shown particularly in Figs. 1, 2 and 6, there are three feed-racks mounted upon the shaft 62, which differ from each other in the distance between their notches, so that by looseningthe set-screw G0, and swinging the racks alternatively into operative position, difierent lengths of feed may be pro vided for.

The longitudinal feeding movements of the reed-rack 61 are produced by mechanism shown particularly in Figs. 1, 10 and'll. The left-hand and (Fig. 1) of the shaft slides freely in its bearing 66 on the beam 20, and is provided with a head 85 vertically slotted on both sides. The shaft is freely rotatable within the head so that the head maintains its vertical position during the rocking movements of the shaft, but it is confined against longitudinal movements on the shaft by means of a collar 40 and an oppositely-disposed shoulder on the shaft. The slotted head is employed in order that the beam 20 may move vertically without interfering with the operation of the mechanism, and to' this end the slides are engaged by rollers at the upper ends of arms 86 vertically adjustable on a bifurcated lever 88 (Fig. 11). The arms are fixed in adjusted position by means of screws 87 (Fig. 6), and this adjustment is provideduin order that the longitudinal movement of the shaft 62, produced by the lever 88, may be varied according to the length of the feed intervals on the particular feed-rack which has been selected for use. a i

The lever 88 is loosely journaled on a hollow shaft 89 fixed in lugs 91 on the frame of the machine. The lever extends below the hollow shaft and is provided, at its lower end, with a transversely-perforated boss 92 (Fig. 11) in which a cylindrical key 93 is seated. The keyis longer than the width of the boss. so that one end or the other engages one of two rook-

levers

94 and 95, which are also loosely journaled onthe hollow shaft 89.; These rock-levers are in the form of bell-cranks (see-Fig. 10). The

rock-lever 94 has a horizontal arm 96 to which is pivoted the upper end of a depending rod 97. The lower end of this rod is pivoted to. an arm 98 (Fig. 1) which .is fixed on a rock-shaft 99 journaled in an extension from the frame of the machine. To this rock-shaft is fixed a cam-lever 101 having a cam-roll which engages a path in a cam 102 fixed on the power-shaft 27. The campatlr is so shaped that it acts, through the mechanism above described, to oscillate the rock-lever 9 The rock-lever 95 is oscillated simultaneously with the lever 94, but always in the opposite direction, by means of suitable connections with the arm 98. To this end the lever 95 has a horizontal arm 103, projecting on the opposite side of the hollow shaft 89 from the arm 96, and pivoted to the upper end of a depending rod 104. The lower end of the rod has a. fork 105 which is pivoted to the arm 98 by straddling the pivotal connection thereto of the rod 97.,

The lever 88 is rocked constantly on the shaft 89, owingto the fact that it is always connected. by the key 93, with one or the other of the rock-levers 94: or 95, but its direction of movement at any given time depends upon such connection. This arrangement is rovided in 'orderthatthe direction of the Feeding movement of the feed-rack may be reversed, so that after the die has been fed from one end to the other of the beam with a step-by-step movement, it may then be fed, in the same manner, in the opposite direction, so asto produce two sucoessive row, of cuts in the material without loss of time. oridle return movements.

' The means for reversing the direction of operation of the feed-rack automatically when the die reaches the end of its path of movement on the beam will now be explained. As shown in Fig. 1 the cam path in the cam 102 has a short, strai ht portion 106, providing a dwell which occurs at the moment when the ends of the

rocklevers

94 and 95 are in line with each other at the ends of the boss 92, as in Fig. 11. At this moment, therefore, the key 93 may be shifted out of engagement with one rock lever and into engagement withthe other to reverse the movements of the feed-rack. In order that. the key may be so shifted it is provided with a stud 107 (Fig. 11), depend- 1ng through a slot at the lower side of the boss 9 2, and carrying, at its lower end, a roll engaging a segmental slotted head 108 on a horizontal slide 109. This segmental head is employed in order that the swinging movements of the lever 88 may not interfere with the connection between the stud 107 and theslide. The slide 109movesgin bearings 111 and 112 on the frame of the machine and it is articulated by the upper end of an arm 113,'fixed 'to-a rock-shaft 115 also journaled on the frame'of the machine. At its left-hand end (Fig. 10) the rockshaft 115 is provided with a cam-lever 116 carrying flanged cam rolls 117 and 118, adapted to cooperate alternatively with two

cams

119 and 121. These cams are; carried on a shaft 130 journaled in. the frame of the machine. tated by connection with the power shaft 27. To this end the cams 119 and '121- t ogether with a sprocket 122 are all formed on a common hub and the sprocket is connected, by a chain 123, with a similar sprocket on the power-shaft. In the normal position of the parts, just described the camrolls 117 and 118 do not engage their respective cams, but when the die reaches either end of its path of movement on the beam the cam-lever is shifted, by mechanism to be presently described, so as to cooperate with one cam or the other and thus shift the key 93 through the connections previously described.

The operation just referred to is produced by the following mechanism: Upon the diecarriage 51 is an adjustable push-pin 126, as shown in Figs. 1 and 7. When the die succeeding rotation The cams are constantly rois at the left-hand end (in Fig. 1) of the beam this push-pin lies directly above the end of an arm 127 (Figs. 1 and 11'), which is adjustablyfixed by means of a hand-nut 128 upon a horizontalilever 129. This lever is Ifixed to the rear end of .a' rock-shaft .131, journaled within the hollow shaft 89,

as shownin Fig. 11. At the last downward movement of the die, therefore, at the lefthand end of its pathof movement, the pushpin 126 enga es the arm 127 and thus rocks the rock-sha t 131. At the forward end of the rock-shaft is fixed a horizontal arm 132 to which is pivoted the upper end of a rod 138 (F ig. 10). The rod slides freely through a-lug 134 Figs. 3 and 10) on the horizontal arm of a ell-crank lever 135 pivoted to the frame-10f the machine. Above and below the lug the rod 138 is provided with nuts, between which and the lug are confined

coiled springs

138 and 141. When the rock-shaft 131 is moved by the downward movement of the die-head, the arm 132 is raised, thereby raising the rod 138 and compressing the spring 14L This results in rockm the lever 135about its pivot. The depen ing arm 136 of the lever 135 is bifurcated and provided with rollers engaging an annular groove 137 in the hub 01 the cam-lever 116, which latter is splined upon the shaft 115 so that it may slide, but

'not rotate thereon. Accordingly this movement ofthe rock-shaft 131 throws the camlever to the left, and the cam-roller 117 is thus brought into position to cooperate with cam 119. This movement is permitted by reason of the fact that the cam has a cutaway portion (see-Fig.11) which in theoperationof the machine is brought opposite the cam-roll at the ap ropriate time. The

of the cam, however, brings a higher ortion of the cam into engagement with t e cam-roll, and thereafter the flange (see Fig. 10) upon the roll maintains it in engagement with the cam after the beam and the die .have risen and disengaged the push-pin 126 from the arm 127.

As soon, h wever, as the cam 119 has completed its rotation, the parts are returned to normal position by means of one or the other of two springs 150 (Fig. 10) engaging a lug 149 on the bell-crank lever 135. These springs operate in the same manner after the cam-lever 135 has been moved in the opposite direction to engage the cam-roll 118 with the'cam 121. I

When the die has reached a position at the right-hand end of the beam, an opposite movemcnt from that just described is produced, by means of a second adjustable push-pin 144 (Figs. 6 and 7) mounted on the die-carriage 51. This pin cooperates with an arm 145 mounted on the horizontal arm of a lever at the righthand end of the frame of the 130 (Fig 2) adjustably machine. The vertical arm- 146 of this lement of the die at the right-hand end of its path of movement along the beam causes the rock-shaft 131, and the mechanism connected therewith. to move in the opposite direction ti iust described, thus compressing e rig 139 (Fig. 10) and throwing the cam-roll 118 into engagement with the cam 121 which has a cut-away portion (see Fig. 11) similar to the cam 119.

When either cam-roll engages its appropriate cam, the key 93 is thrown, by the mechanism heretofore described, in one direction or the otheryand thus the direction of feed of the die upon the die-carrier is reversed. The n-ovement of the key inone direction is assisted by means of a spring 114 (Fig. 11) connected by its ends to pins on the arm 113 and the frame, but-the slide 109 is retained at either end of its path of movement by means of a spring-pressed detent 12% (Fig. 11) which engages appropriately spaced notches 125 in the slide. To free the slide from the detent at the beginning of its lefthand movement (in Fig. 11) the cam 121 is provided wiih'a closed portion 142 (see Fig. 11) adapted to force the cam-roll positively inward a short distance and thus supplement the force of the spring 114 sulliciently to move the slide against the resistance of the detent. The cams are so fori'edthat the movement of the key occurs during the dwell caused by the portion 106 of the ram 102 before referred to, and while the openings at the lower ends of the three levers 88, 9stand 95 are all in line. The result of the operation of this mechanism is that, without the loss of the operative stroke, the feed-movement of the die reversed at each end of the beam. It Will be obvious that the

arms

127 and 145 will each be depressed twice in the manner above described at two successive downward movements of the die at the ends of itspa'th of movement along the beam,

.but this does not interfere with the operation of the mechanism, as the springs 13 and 111 permit the resulting movement of the parts without interference with the operation of the cam-lever and the ca") s.

During the time the feed-rack is rocked into a position to release the die in order to move backward for the next, feed, and the die is making its cut, it is necessary to secure the die by other means against accidental longitudinal movement on the beam. To

' this end a.lmek ng-rack is located at the rear of the beam. This rack is mounted on a shaft .lfifa tl igs. 3. 4 and 6) Journaled on the beam in the same manneras the shaft and this shaft is provided with a depending arm 151 (Figs. 6 and 8) which serves as a support for the rear end of the bar 69, the front end of which is supported fromthe shaft 62. The connection just described is such that when the feed-rack is rocked out of engagement witlrthc dog 67, the lockingrack-is rocked into engagement with a dog 154: (Figs. 6 and 7), also mounted on the die-carriage 51, and thus the die issecurely locked against longitudinal movement until the feed-rack again engages the dog 61'. Three locking-racks are shown, which may be alternatively employed and which c ;-r1'espond respectively to the three feed-racks with respect to the intervals between their notches.

The automatic means for supporting and feeding the sheet-material will now be described. Several thicknesses of the material are usually out at one time. as shown in'the drawings. The pile of sheets rests upon a horizontal feed-table 1555 (Figs. 3. 4 and 5), -which is arranged on a level with the top of the cuttihg-block at its rear. This feedtable is supported on

uprights

156 and 157, adjustably mounted in

hollow columns

158 and 159. The superposed sheets of material archeld, together and are advanced over the teed-table and the cutting-block by means of a teed-bar 161 (Fig. 5). This bar is formed, as shown in Fig. 12,01? sheet-metal bent into a channel-form and having forwardly and rearwardly-directed

flanges

162 and 163 at. its base. The margins of the sheets rest upon these flanges. and the flange 162 is provided with points to secure the undersideof the material to the bar. For the same purpose clamps 164 (Fig. 13) are provided which are pivoted to the bar and have points to engage the upper side of the material. These clamps have lugs 16:") (Fig. 12) engaged by spring-pressed plungers 166 (Fig. 13) inclosed within the channel of the feed-bar, by which means the clamps are held down in engagement with the material, and are also held in raised position when lifted by. the operator (see dotted lines Fig. 1:2). The teed-bar is not permanently connccted'with the other parts of the machine, but moves over and beyond the uppersurface of the fe table until it approaches as near as possible to the plane of the die'move mom, when it is disengaged from the Work by the operator and removed. In the meantuno another feed-bar has been fixed, by the operator. to the rear edges of the sheets of material, and in this manner a constant suc- ('cssicn ot' piles of sheet material, connected by feed-bars, may be fed over the feedstable, 01H. m the feed-bars being at all times in cnganrnu-ntwith the mechanism for moving it step by step to advance the material be neath the beam.

The mechanism by which the feed-bars are shifted over the feed-table comprises endless conveyer-chains 172 (Fig. 5) carried over sprockets 170 journaled on the feed-table. The forward s rockets are fixed to a feedshaft 181, and t 'is shaft is provided with cooperating clutch-members 183 and 184 (F ig..

path of movement on the beam, so that aftereach row of blanks has been cut, the material is (fed-through a space equal to the width of such a row in order to present fresh material for another row. The mechanism by which this operation is performed is constructed as follows: Upon each end of the shaft 189is loosely journaled a swinging arm 192 (Figs. 3 and4) carrying apawl 120 which cooperates with a ratchet 191 on the shaft. Each arm 199 is pivoted to the lower end of a vertical rod 193, the upper end of which is pivoted to the free end of a horizontally-arranged arm 194 (Figs. 1, 2, 8 and 9) pivotally mounted on convenient shafts at the ends of the u'iachine.

pending latch-arms 19?) (Figs. 1 to 4) pivoted, at their upper ends, to the; beam 20 near its ends. 'lhesc arms 195 are provided, at their lower ends. with hooks, butthey are normally held in vertical position by means of springs 196 connected to their upper ends so that, normally during the reciprocation of the beam they pass and do not engage the arms 194. \Vhen the die reaches either end of its movement on the beam, however, one

of two spring-supported, horizontal plungers 197 (Flgs. (i and 7) on the die-carriage engages one or the-other of the arms'195.

, thereby swinging it outwardly so as to cause itshoohed end to engage and raise the corresponding arm 194 at the next succeeding upward movement of the beam. By means of this operation the corresponding rod 193 is raised 'and the clutch and'sprocket shaft 189 is partially rotated, through theaction of the corresponding ratchet-n'icchanism.

. In this manner the conveyer-chains 172 are and, according to the position in which the The arms 19-1 are adapted to be actuated by means of derock-arms are arrested by the stop-screws, the am lit'ude of their upward movement is determined, and thus the length of the feedmovement is regulated. g 1

Upon first startin the machine the operator throws the date member 184 (Fig. 15)

out of engagement with the member 183, by

means of a hand-lever 200 (Fig. 5) pivotally-mounted on the feedetable. This lever is connected, by a link- 190, with a lever 160 having a forked end engaging a groove inthe hub of the clutch-member 184. This member is splined to the feed-shaft 181 and is normally held in operative position by a spring 110. When the clutch has been disconnected the operator may turn the feedshaft freely by means of a hand-wheel 180 and thus properly introduce the work into the machine for the first line of cuts.

To gage'the lateral position of the work the feed-table is provided with an edge-ga e in the form of a rail 168 (Figs. 5 and 14 An edge-clamp .169 is pivoted on the rail-and is pressed into frictional engagement with the material by a spring-plunger 171.

The temporary connections between the conveyer-chains 1 72 and the feed-bars 161 are made by the means illustrated more particularly in Fig. 12. At regular intervals upon the chains are 'blocks 173 on which are pivoted feed-levers'174. Each lever has a finger 175 adapted to project above the surface of the table and receive on them one of the feed-bars which is thus advanced as the chains move. Each lever carries a roller 176 enga ing a cam-path 177 adjacent'the chain. 1 ien the feed-bar reaches the forward edge of the feed-table the cam-rollers cause the operative pair of feed-levers to.

continue, for some further time, to project horizontally forward (as shown in Fig. 3), and thus continue tocause the levers to support and advance the feed-bar through partof the open space between the feed-table and the cutting-block. The end-portion 178 of the cam-pa'th'is so formed, however, as to cause the feed-lever to swing quickly downward ,to quickly, disengage the fingers from the feed-bar and permit'itsremoval by the operator. The rear end17i81i7of.;the earnpath is formed to swing the feed-levers fora to receive" another bar upper flat surface 202 of a stout beam or bed 203 which extends across the machine. F-ach end of the bed slides in a vertical slot .in one of the end-members of the frame of the machine, shown in Fig. 4, and is supported upon a not 204, which also slides inthe frame and is threaded upon a vertical adjusting-screw 205. The lower end of the messes screw rests on a step206 on the frame, While the upper end of the screw is provided with a hand-wheel 207 by which the screw may be turned to adjust the height of the cutting-block as it wears away, or to accom- .ends, embracing the modate various thicknesses of work to be operated upon.

In order to equalize the wear upon the upper surface of the cutting-block it necessary that the lines of engagementbetween the die and the (Ht'tlng-blOCk be frequently changed. To move the cutting-block transversely, for this purpose it provided with straps J08 (Figs. .1, 2 and st) passing transversely under the block near its ends and having; u 'iwardly--ext.ending lugs at their ties of the block. Each strap 208 is provided with a downwardlyprojerting lug; 1 (dotted lines Fig. 4) at its middle portion, and these lugs are. in threaded engagement with screws 21] journaled on the bed and provided with hand-wlu els1212 by means of which they may he turned by the operator at suitable intervals.

'lhemarhine is provided with means by which the cutting-block is automatically shifted longitudinally, at suitable intervals, so that for long: periods of operation no attention on the part of the operator is' required to the shifting of the cutting-block. To this end a rod 213 is fixed in horizontal position in lugs 212 on the right-hand end of the cutting-block, as shown in Fig. 2. The rod 213 is embraced by an arm 2L1 free to swing and to slide therein. and this'arm carries a cam-roll 215 engaging a cam 216 (Figs. 2, 8 and 9) jonrnaled loosely upon a rock-shaft 219. The :'-;lidin commotion described. between the arm 214 and the cutting-block, is provided to permit the latter The u'ieans for. rotating. the ram 216 intermittently is constructed as follows: lu-

tegral with the hub of the cam is a. ratchet 221 (l igs. 5w and-9) which is engaged by.

a spring-pressed pawl This pawl is mounted in a head 22;; fixed to the shaft 219 upon which the cam is journaled'. and this shaft is free to rock in .its hearingon the frame of the machine. At the right-hand end of the shaft is fixed an arm 224 pro vided at its end with a roller (Figs. 2 tu t)! The arm 13 actuated through engagetical. rock-shaft 227.

ment with the roller of means depending from, and moving with, the beam 20. The beam is provided with a bearing lug 5226 (Figs. 2 and 3) in which is journa-led a ver- This shaft is provided with a collar 228 connected with the hearing by a coiled tension spring 229, which acts to maintain the shaft normally in the position illustrated. At the lower end of the shaft 22?" is a slcevei l31 provided with

two'lugs

232 and 23 3 (Fig. t). normal position of the parts these lugs are turned away from the roller 2:25 so as not to engage the latter, but. when the shaft is turned so as to bring the lugs into position above and below the roller, they engage the roller and swing the arm 224 downward at the subsequent downward movement of the beam, so as to operate the pawi-and-ratohet mechanism above described and impart a partial rotation to the cam 216. The arm 121 is normally held in raised position by a spring 220 connecting it with the frame of the machine.

The means for rocking! the shaft for the above-described purpose is carried by the die-carriage. Such means comprises an adjustable push-rod 5235 (Figs. 1, 6 and 7) projecting from the die-carriage which (:0- operates with a roller 23% (Figs. 2 to 4) journaled on an arm projecting rearwardly from the collar 228. \Yhen the die-carriage reaches the right-hand end of its path of movement on the beam, the push-rod 235 engages the roller 234 and rocks the shaft 2127, thereby causing the mechanism before described to operate and shift the cuttinghlock longitudinally on the next succeeding downward movement of the beam.

The general operation of the machine will be apparent to those skilled in the art from the foregoing description. It only remains to say that after the pile of sheet material has been adjusted by the hand-wheel 180 into posit-ion for the first line of cuts. which, obviously, may start from either end of the beam. the main clutch isthrown in by depressing the treadle-bar 39 which is then retained in its lowered position by moving in the latch 42. The movement of the diecarria ge 51. with its die 21, back and forth across the beam will then continue automatically until the latch 42 is moved out again and the treadle-bar is raised by its springs 4-1 throwing out the clutch and stopping! the operation of the die-feeding mechanism. The latrh 42 is moved outhy the. (:peraloat the time a pile of the sheetmaterial has been advanced by the automatic stoclofeeding'.mechanism to a point where the last. line of blanks can be cut therefrom. The, operation of the machine is then stopped until another pile of stock "has been positioned beneath the beam for the first line ofcuts.

.vice herein described as a die.

of work, it will be understood that'the in- 1 vention is not limited to such embodiment nor tothe particular form of knite or deof the followingclaims the machine has been defined as having a die moving toward and from a cutting-block. but it will be understood that anequivalent arrangen'ient may be used in which the cutting-block moves toward the die or in which the cooperating cutting instrumeiitalities have other forms than those specifically described, and the claims are intended to include such equivalent constructions. The invention is not, in general. limited to the details of construction and operation of the embodiment thereof herein specifically illustrated and described, but may be embodied in various other forn'iswitl'iin the nature of the invention as it is defined in the succeeding claims.

lVhat is claimed as new, is:-

1. A die-press,.having, in combination. a cutting-block. a die, a die-carrier, means for moving the die-carrier and the die toward and from the cutting-block, means for feeding the die step by step along the die-carrier in both directions, mechanism for reversing the direction of operation of said feeding, means, and means for actuating said mechanism comprising cooperating members one of which is movable with the die so as to engage and cooperate with theother only when the die reaches the end of its path of movement alt-ng the die carrier, substantially as described.

2. A die-press, having, in combination, a cutting-block, a die, a die-carrier, means for moving the die-carrier and die toward and from the (flitting-block, mechanism for feedine, the die step by step along the die-carrier, mechanism for feeding material over the cutting-block, and means for actuating said mechanisms, each comprising two cooperating members one of which is movable with the die so as to cooperate with the other only when the die reaches theend of its path of movement along the die-carrier, substantially asdescribed.

3. A die-press, having, in combination; a die, a cutting-block, means for moving the die toward and from the cutting-block, and means operating, between successive engagements of the die with the same portion of the cutting-block, to shift the cutting-block automatically through a space less than the widthof the die to change the line of engagement of the die and the cutting-block at successive operations, subst antially as described.

4. A die-press, having, incombination, a cutting-block, a die, a die-carrier, means for moving the die'carrier 11nd,:t1116 die toward In some and from the cutting-block, means for feeding the die step by step along the die-carrier, and means for shifting the cutting-block automatically, in the plane of its cutting surface,'bet\veen successive engagements of the die and the cutting-block. substantially as described,

5. A die-press, having, in combination, a cutting-block. a die, a die-carrier, means for moving the die-carrier and the die toward and from the cutting-block, means for feed ing the die step by step along the die-carrier. and means for shifting the cuttingblock automatically, in the plane of its cut-- ting-surface, after the die has reacbedthe end of its path of'movement along the diecarrier, substantially as described.

(n A die-press, having, in combination, a cutting-block. a die, a die-carrier, means for moving the die-carrier and the die toward and from the cutting-block, means for feeding the die step by step along the die-car rier, mechanism for shifting the cuttingblcck in the plane of its cutting surface, and means for actuating said mechanism comprising two cooperating members one of which is movable with the die and is constructed and arranged so as to cooperate with the other only when the die reaches the nd of its path of movement on the die-car rier, substantially as described.

7. A die press, having, 'in combination, cooperating cutting-instrumentalities, and means for supporting and feeding sheet-material thereto comprising an endless conveyer and a removable cross-bar at the rear of the material, the conveyor ha vlng moving fingers to engage the cross-bar and feed the latter,

and the cross-bar'having means for securing a it to the edge of the sheet material, substantially as described.

8. A die-press, having, in combination, cooperating, cutting instrumentalities, and means for supporting and feeding sheet-material thereto comprising an endless conveyer, a cross-bar provided with means for securing it to the rear edge of a sheet of material, arms pivoted upon the conveyor and having upwardly-extending firgers {or engaging and feeding the cross-bar, and means for swinging the arms downward at the end of their forward path of movement to disengage'the fingers from-.the cross-bar, substantially as described.

9. A die-press, having, in combination, a cutting-block, a (he, a (he-carrier, means for moving the die-carrier and the die toward and from the cutting-block, means for feeding the die step by step along the die-carrier, an endless conveyer for feeding the sheet material into the path .of movement of the die, mechanism for moving the conveyor end of its ath of movement along the diecarrier, an actuating means for sald mechaintermittently each time the die reaches the t i nism, comprising two cooperating members oneof which is actuated by the die-carrier, saidmembers being normally out of cooperative engagement, but being thrown into engagement by the movement of the die along the die-carrier just prior'to its final cutting movement, substantially as. described.

10. A die-press, having, in combination, a cutting-block, a die, a die-carrier, means for moving the die-carrier and the die toward and from the cutting-block, a four-motion feed-mechanism for moving the .die along the die-carrier step by step, and a positive locking device for holding the die against movement on the die-carrier between suc cessive operations of said feed-mechanism, substantially as described.

11. A die-press, having, in combination, 2 cutting-block, a die, a die-carrier, means for continuously moving the die-carrier and the die toward and from the cutting-block, and automatic mechanismv for feeding the die step by step along the die-carrier between successive cutting operations, substantially as described.

12. A die-press, having, in combination, a cutting block, a die, a die-carrier, means for continuously moving the die-carrier and the die toward and from the cutting-block, means for feeding the die automatically along the die-carrier step by step between successive cutting operations, and means for reversing the direction of said feeding movement at each end of the path of movement of the die upon the die-carrier, substantially as described.

13. A die-press, having, in combination, a cutting-block, a die, a die-carrier, means for continuously movin the die-carrier and the die toward and rom the cutting-block, means for feeding the die step by step along the die-carrier between successive cutting operations, andmeans for feeding sheet-material across the cutting-block, said means operating when the die reaches the end ofits path of movement upon the die-carrier, substantially as described.

14. A die press, having, in combination, a cutting-block, a die, a die-carrier, means for moving the die and die-carrier toward and from the cutting-block, automatic mechanism for feeding the die step by step along the die-carrier between successive cutting operations, and provision for varying the length of step comprising the die feed to accominodate the movementof the dieto the size of the article to be cut, substantially as described.

15. A die press, having, in combination, a cutting-block, a die, a die-carriage, a diecarrier, means for movin the die and diecarrier toward and from tie cutting-block, a four-motion feed mechanism for feeding the die stepby step along the die-carrier comprising a dog on the die-carriage and a rotatable and reciprocatory member carrying a plurality of notched bars the notches of each bar being di'fierently spaced with provision for placmg any selected bar in position to engage said dog within its notches successively, and means for operating said fourmotion feed-mechanism between successivecutting operations, substantially as described.

16. A die-press, having, in combination, a cutting-block, a die means for reciprocating the die toward and from the cutting-block,

mechanism for feeding material over the cutting-block, and means controlled by preselected movements of the die reciprocating means for automatically operating said mechanism, substantially as'described.

17 A die-press, having, in combination a cutting-block, a die means for reciprocating the die towardand from the cutting-block, means for causing .the die to make a predetermined number of cuts in succession, and means actuated by the last movement of the die away from the material for advanc ing the Inaterialbenea th the die into position for another series of cuts, substantially as described. i A

18. A die-press, having, in combination, a cutting-block, a die, a reciprocating die-carrier for moving the die toward and from the cutting-block, mechanism for feeding material over the cutting-block, means for automatically operating said mechanism comprising a latch arm at each end of the carrier and means for causing engagement of one of said arms with the feeding mechanism at pre-selected downward movements of the die-carrier whereby said mechanism is operated on the next-succeeding upward movement of the die-carrier, substantially as described.

19. A die-press, having, in combination, a cutting-block, a die, a reciprocating die-carrier for moving the die toward and, from the along the carrier, mechanism for reversing the direction of movement of the die, mecha-.

' lock, means for feeding the die step-by-step for actuating said two mechanisms when the die reaches either end of its path of move ment along the die-carrier, substantially as described. p

20. A die-press, having, in combination, a cutting-block, a die, a reciprocating die-carrier for moving the die toward and from the block, means for feeding the die step-bystep along the carrier, mechanism for reversing the direction of movement of the die, mechanism for feeding the material beneath the die, devices carried by the ,znoving die for actuating said two mechanisms when thedie reaches either end of the path of movement along the die-carrier, mechanism for upon the block, and mechanism controlled and actuated by the reciprocations of the die for relatively actuating the die and material to form a succession of parallel transverse rows of cuts in the material, substantially as described.

22. A die press, having, in combination, a

cutting-block, a die, a die-carrier, means for moving the die-carrier and die toward and from the ciittingblock, means for feeding the die step by step along the die-carrier in both directions, mechanism for reversing the direction of operation of said feeding means, and means for actuating said mechanism controlled by the final downward movement of the die at either end of its series of feed movements along the die-carrier, substantially as describe 23. A die press, having, in combination, a cutting-block, a die, a die-carrier, means for moving the die-carrier and .die toward and from the cutting block, means for feeding the die step by step along the die-carrier in bothdirections, and mechanism controlled by a preselected movement of the die and die-carrier for reversing the direction of operation of said feeding means, substantially as described.

24. A die press, having, in combination, a cuttingblock, a die, a die-carrier, means for moving the die-carrier and die toward and from the cutting-block, a feed devicev for engaging and feeding the the step by stepalong the die-carrier, operating mechanism for said feed devlce including two oppositely moving actuating levers for imparting a feed movement to the die in. opposite directions, and means for placing sald feed device under control of either of said levers, substantially as described. a

25. Asdie press, having, in combination, a cutting-block, a die, a die-carrier, means for moving the die-carrier and die toward and from the cutting-block, means .for feeding the die step by step along the die-carrier,

operating mechanism for said feeding means including two oppositely moving actuating levers forimparting a feed movement to the die in opposite'directions, a movable pin for connecting said mechanism to one of said levers at a time, and means for shiftin'g the pin at times from one lever to the other to reverse the direction of operation of the feeding means, substantially as described.

26. A die press, having,in combination a cutting-block, a die, a die-carrier, means or moving the die-carrier and die toward and from the cutting-block, means for feeding the die step by step along the die-carrier, operating mechanism for said feeding means including two oppositely moving actuating levers for imparting a feed movement to the die in opposite directions, a movable pin for connecting said mechanism to one of said levers at a time, and means controlled by preselected movements of the die for shifting the pin at times from one lever to the other to reverse the direction of operation of the feeding means, substantially as described.

27. A die press, having, in combination, a cutting-block, a die, a die-carrier, means for moving the die-carrier and die toward and from the cutting-block, a feed device for engaging and feeding the die step by step, a cam, two oppositely moving actuating levers for imparting a feed movement to the die in oppositedirections operated by said cam, a third lever operatively connected to said feed device, and means for connecting either of said actuating levers to the third lever, substantially as described.

28. A die press, having, 'in combination, a cutting-bloclg'a die, a die-carriage, a die-carrier, means for moving the die and die-carrier toward and from the cutting-block,

and automatic mechanism for feeding the die step step along the diecarrier between successive cutting operations, said d e carriage being provide with a curved passage above the die and extending laterally thereof for discharging the out pieces of 'material from one side of the die-carrier dur-, ing the movement of the die, substantially as described.

ERASTUS E. WINKLEY. Witnesses WARREN Gr. OGDEN, RUTH A. SIMoNns.