US1268908A - Machine for cutting pieced lifts and for building heel-blanks therefrom. - Google Patents

Description

W. WOLFE & D. PARKS. MACHINE FOR cunme PIECED LIFTS AND FOR BUILDING HEEL BLANKS THEREFROM 7 APPLICATION HLED DEC- 3] 19i4- 1,268,908. Patented June 11. 1918.

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W. WOLFE & D. PARKS.

MACHINE FOR CUTTING PIECED LIFTSAND FOR BUlLDING HEEL BLANKS THEREFROM.

APPLICATION FILED 02c; 31. I914.

1,268,908. Patented June 11.1918.

4 SHEETS-SHEET 2,

W. WOLFE & D. PARKS. MACHINE FOR cunma mow LIFTS AND FOR BU |LD|NG HEEL BLANKS THEREFROM. APPLICATION FILED DEC- 3I. l 9l4- 1,268,908, Patented-June 11. 1918.

W. WOLFE & D. PARKS.

MACHINE FOR CUTTING PIECED LIFTS AND FOR BUILDING HEE L BLANKS THEREFROM.

APPLICATION FILED DEC. 31, I914.

1,268,908. Patented June 11. 1918.

4 SHEETSSHEET 4- WILLIAM woLrn m nnmvrs gems or sr. LOUIS, mssom J moantn' roacurrrire rm'cnn Lrrrs AND FOB. ammo xnnL-rmmxs manners.

building,

V such vide novel means for Specification-o! Letters letent. Patented J nine 11, 1918.

Application filed December-'31, 1814. Serial No. 879,858.

To all whom it may concem:

Be it known that we, WILLIAM WOLFE and DENNIS PARKS, citizens of the United States, residing in the city of St. Louis and State of Missouri, have invented new and useful Improvements in Machines for Cutting- Pieced Liftsand for Building Heel-Blanks Therefrom, of which the following is a specification.

This invention relates to the art of heel and has for its general object to rovide a novel machine for cutting pieced lifts and for building heel-blanks therefrom in a continuous operation.

Detailed objects of the invention-are, to provide novel means for cutting strai ht edges on pieces of scrap leather to one. 1e piecesto be assembled to form the pieced lift; to provide novel means for cutting assembled pieces of leather into the form ofa lift and simultaneously forcing. the pieced lift thus formed into a holder; to provide a combined die and heel-blank holderof indefinite length in combination .with a cutting-block coiiperating therewith; to provide,

in combination with constantlyactm cutting means, a member movable there y to actuate the cutting block; to proenabling a rand to be applied to the heel-blank; to rovide novel means for indicating the thic see of each lift cut'and forced into the holderand thereby to determine when each. heel-blank has been built up to the proper height. Other objects of the invention relateto details of construction and to combinations .and operations of parts asv will hereinafter more clearly appear.

In thedrawin s Figure 1 is-a view machine, me;

F" 2 is a view in front elevation showing t e cutting block moved to a position over the die and momentarily depressed by the actuating member;

Fig. 3 is a plan View with the parts in normal position; Fig: 4.isa similar but fra with the cutting block move over the die;

Fi 5 is a broken sectional View taken on the 11118 55 of Fig. 1, and viewed in the direction of the arrows;

Fig. 6 is a lan view of the assembling table surroun ing the die and showing in rear elevation of the with the parts in the normal posientary view to a position sectional view ta 1 per end of which is pivotal pieces of leather assembled thereon in -readiblock thereon, the rand adjuster employ being shown turned to an inoperative positron; Fig. 7 is a similar view, a pieced lift having been cut from the piece 0 leather shown in Fig. 6 and forced: into the die, the rand adjuster having been turned to o erative position over the die, and a rand p aced in position therein over the die in readiness to e cut by the, depression of the cutting block;

Fig. 8 ;is'a fra mentary central vertical ion on the line 8-8 of ness to be cut by the descent of the cutti g F1? 7; ig. 9 is a sectional plan view on the line 9-9,of Fi 8, but showing the upper lift of a heel b ank su ported in the holder;

Fig. .10 is a p an view of a completed heellank with a rand attached;

Fig. 11 is-a view in end elevation of the same; and

Fig. 12 is a perspective view of a separati plate.

ferring now to the drawin meral 1 indicates the base of t e machine supported on' girders 2, and from which rises the frame indicated generally by the numeral 3. At one side of the frame there is provided acentrally bifurcated bearing 4 in which is mounted a shaft 5, which has secured on one end a band wheel 6. This band wheel'is ada shown) applied t shaft 5. The said shaft is provided with a crank 7 located in the space between the bearings 4, to which is pivotally connected at its lower end a connectin rod 8, the upfi conected at 9 to the outer end of an armlO which is pivotally mounted toward its inner end, as indicated at 11, in a stirrup 12. The frame 3 provides a vertically-disposed and extended socket 13, which receives and supports a vertical column 14 fixedly securedin said socket in any appropriate way. Formed inte l with the under side of the stirrup 12 1s a hollow casting 15 which receives and is fixedly secured to the upper end of the column 14. The stirrup 12 is also provided on its upper side with a hollow casting 16 which receives and has fixedlg secured therein the lower end portion 0 a vertical shaft 17. The arm 10 is provided along'its lower edge with a bladelS, and has an; integral extented to have a belt ,(not

s, the nuereto for driving the 1 along adjustab y mounted on the arm 22 by a set screw 26. The numeral 27 indicates a yoke which is provided with acylindrical bearing 28 pivotally mounted on the shaft 17. The outer end of each arm of this yoke is provided with a bearing, 29, 30, respectively, in which ,is mounted or reci rocal move ment a shaft 31 having mounts on its lower end, by means of a set screw 32, a metal socket member 33 carrying a cutting block 34, referably of woo Surroundmg the shat t 31 is a coil spring 35, one end of which rests against the up er side of the bearing 30, and the up or en of which bears against a collar 36w ich is fixedly secured .bya set screw 37 to the shaft 31. The pressure of the spring 35 against the collar 36 normall holds the cutting block '34 in its elevated position.',-The upper bearing 29 has projecting fromv it a handle 38 by asping which the yoke 27 may be turne on the shaft 17 as a pivot to the operative or inoperative position. The socket member 33 is formed on its upper side with an integral circular portion 39 which is ada ted to receive the im act a and pressure 0 the head 20 when t e yoke is turned to bring the cutting block into operative position, as later described.

Mounted on the frame of the machine is a heel-blank holder which comprises two vertically-disposed members, a breast plate A vertically: dlsposed member 42 of the frame is provided 40, and a curved back plate 41.

toward its upper end with a laterally projectin hollow rectangular ortion-provid- 1n s1 e members 43, 44, w ich extend on. eit er side ofthe heel-blank holder. Thev back plate 41 is provided at its upper end with shouldered extensions 45 which rest on the to of the said side members 43, 44. Said bac plate is adjustable toward and from the breast plate by means of screws 46 (see Figs. '1 and 2), alower pair of which pass throu h the back plate near the sides thereof an have their screw threaded ends engaging in a flange 47 of the vertical frame mem readily seen by an inspection of Fi 3, ex tend the side members 43 and 44 above referred to, while an upper pair of said screws engage the breast plate 40 near the collars 50. Interposed -between the heads er 42, from which flange, as will be masses of the set screws 46 and the back plate 41 are coil springs 48. By turning the ad usting screws 46 the back plate 41 will be forced by the pressure ofthe springs toward the breast plate 40, but will bein a position to yield against the resistance of sa1d springs in order to engage firml and exert pressure u onthe lifts and heellanks in the holder. e breast plate 40 is supported (see Fig.

8) by means of bolts 49 passing through an upward extension of the flange 47 and having their screw threaded ends engaging in said breast plate, a collar 50, through w ich the bolts 49 pass, serving to s ace the breast plate the proper distance 0m the flange 47. Toward 1ts lower and (Figs. 1 and 2) the breast plate 40 is engaged by contact screws 51 passed through the flange 47, by adjusting which the bottom portion of sand, contact plate inay be sprung inward toward the back plate 41 so as to ofler the proper resistance to the movement of the heelblanks downward as they are built up in the holder. The numeral 52 indicates a die which is removably mountedin the upper end of the heel-blank holder formed by the breast plate 40 and back plate 41, being secured in position by a set screw 53 passing through'an u ward extension .54 of saidbreast plate. urrounding the upper sharpened, edge portion of the die 52 is a table 55 which is mounted on a head 56 adjustably secured by a set screw 57 on the upper end of a rod 58. This rod passes through guides 59 and 60, located, respectively, at the top and bottom of the back plate 41, and is .yieldably supported by means of a coil spring 61, surrounding its lower portion, thelower end of which spring rests upon the guide 60, and the upperend. of which bears a ainst a collar 62. secured on the rod 58. T e rear side of the table 55 is provided with a rectangular recess 63 into which ex- =tends a block 64, lying flush with the upper is surface of the table 55. The ends of t block are shouldered and fproject beneath the table at opposite sides 0 1ts recess, these extending ends being provided with slots 65. Countersunk screws66 pass through the table and throu h these slots, and by means of nuts 67 apphedlto said screws, the block,

64 is held in adjusted relation with reference to the rear or breast side of the die' 52. Should a. larger die. at any time be substltuted for the one being used, the breast plate 40 will be moved back the appropriate lstance by employi a narrower collar 50; and, the block 64 W11 also be adjusted to the proper $sition to accommodate the larger die. spending from the'block 64 @are lugs 68 which'embrace opposite sides of the. extension 54 of the breast plate and gpide the table 55 in its movement. As will seen'by an inspection of Figs. 6 and 7, the purpose of the table 55 is to permit the the cutting edge essence" pieces of leather which. are to form a pieced die. The manner of mounting this table on the rod 58 allows the table to yield under the pressure of the cutting block to permit the leather to be cut b the die as it ispressed down by said cutting 'hlock. Assoon as the pressure of the cutting block is removed the table, of course, rises to its normal position, in which its u per surface is flushwith the die. In order to provide for positioning arand .on and applying it to a heel-blank, a randholder 69 is provided. This rand-holder is substantially of a horse-shoe shape, its recess having its inner edge undercut to enable it to hold the rand 70, as clearly shown in Fig. 7. The rand-holder is provided with an integral extension 71 -which is provided arm This collar at its outer end with a bearing 72. Extending through this bearing and through an apertured lug 7 3 of the table 55 is a rod 74. This rod is fixedly secured to the bearing 72 as by a set screw or the like. The lower on of t e rod 74 passes through an opening in an arm 75 provided atthe lower end of the back plate 41, end and projecting from opposite sides thereof stops 7 6 for engaging opposite sides of the arm '75, whereby to limit the turning movement of the rod 74. This turning movement is for the purpose of bringing the rand-holder 69 into as shown in Fig. 7, or to turn it to inoperative position, as shown in Fig. 6, and is preferably effected by means of a milled cad]? appliedto its upper end. When in position over the die, as shown in Fig. 7, its

recessed ed e surrounds the dieatsome distance there om, as indicated by the dotted lines, so that when the rand is placed in position under its beveled edge ndthe cutting block. is eaused to descend,-'the said randholderwill be forced downward around the:

die, permitting the cutting ed of the latter to engage and cut the ran V The randholder, as will be understood, moves downward with the "table 55- in the latter operation. The upward movement of the table 55 is conveniently arrested by means of a collar 78 secured to the lower end of the rod '74 and adapted to engage the under side of the also carries the stops 7 6 above referred to. '.In order to. indicate. to the operator the thickness of each lift cut and forced into the holder, and thereby en-' able-him to-determine'when each heel-blank has been built upto the proper height, the 'f (l1loiwing indicating mechanism is pro- --v1e:

.Mounted' on the upper end of theshaft 17,

as by; a set screw 79km a casting 80 provided vwitliej'gage-81' at t e front of the machinel.

Projecting from thecasting 80 is an integra a 82 which is apertured to receiv ethe and has secured to its lower position over the die 52,

upper end portion of a rod 83 which reciproiftto be assembled in position over the.

eates therein. Mounted on the rod 83 is a pointer84 which coiiperates with the. gage v 81. Secured to the lower end of the rod 83 is an angle arm 85. Loosely mounted on the shaft 14 and supported on the upper end of the socket member 13 is a sleeve 86 having at one side an integral bearing 87 (see Fig.

1) in which is mounted a shaft 88. Secured Y to one end of the shaft 88 is a small pulley 89. Connected-to the periphery of this pul- Icy is one end of a stra 90, the other end of w ich is secured to th of the shaft 88 there is secured a friction e lower end of the angle arm (see Fig. 5). On the opposite en wheel 91. Surrounding the shaft 14 is a torsion spring 92, one end of which is secured at the top of the casting 86 and the other-to a collar 93 fixedly secured on the shaft 14: by aset screw 94. The spring 92 normally holds the friction-wheel 91 in position to frictionally engage the heel-blanks as they are premed down in the heel-blank holder, as indicated in Figs. 1, 2 and 8 and by dotted lines in Fig. 3.; Thus as each lift is forced into the holder the heel-blanks already in the holder will be forced downward therein a distance corresponding to the thickness of the lift cut, and

this movement of the heel-blanks will rotate the friction observing the gage of uniform height. When the heel-blank F has been completed it is, of course, to restore the pointer 84 to the zero'position. To accomplish this there is secured on the side of the sleeve 86 facing the operator an arm 95,-by grasping which the operator can easily turn the sleeve 86 to move the wheel 91 from contact with the heel-blank, when the weight of the rod 83 immediately necessary no causes it to fall and carry the pointer downward to the bottom. of the gage. operation, as will be readily understood, the strap 90 will be unwound from the pulley 89 due to the fact that by removing the friction wheel from contact with the, heel-blank the said wheel, shaft 88, and the pulley 89 are free to'turn.

4 The numeral 96 indicates a scraper, which is mounted on theupper end of a rod 97 this red passes through". an .aperture in a flange 98 on the side member 43 and at its lower end through an apertured lug 99 10- In this cated near the lower. end of said side memher. Secured on the rod 97 is-a collar 100 (Fig. 5) having a flat side adapted to ride against the face of the side member 43 to keep the rod 97 from turningi and between said collar and the a erture lug 99, and surrounding the'rod 9 is a coil spring 101, which thereby supports the rod 9? and scraper 96, the upper edge of which latter is held slightly below the bottom of the cutting block '34. In the depression of the cutting block the scraper is free to be pressed downward against the resistance of the spring 101, and is suficiently close to the under side of the cutting block at all times to remove from it any pieces of adhering leather, as the cutting block is turned from the operative position shown in Fig. 4: to the inoperative position shown in Fig. 3.

In operation, as the shaft 5 is continuously turned by the band wheel 6, the connecting rod 8 will cause a continuous reciprocation of the arm 10 carrying the blade 18 and of the extension 19 carryingthe head 20. The operator selects a piece of leather,

and inserting it beneath the guard 24:, the blade 18 coiiperating with the blade 23 will cut the same on a perfectly straight line. This piece of leather the operator then places ii on the table over the die 52, and it may e represented by the piece shown at the left in Fig. 6. A second piece of leather, .such as shown by the central piece in Fig. 6, will be provided in a similar way with two straight edges, and adjusted in position next to the first piece, and then a third piece will be} provided with a straight edge and adjusted in position next to the second piece, as shown. It will-be understood, of course, that the cutting of the piece of leather is not limited to forming such shapes as showninFig. 6, as more or less than three pieces can be used, and the straight edges will be provided as may be required to permit the piece being cut-to lie closely adjacent to the preceding piece placed on the table 55 over the die. The pieces of leather being assembled in the manner described on top of the die, the operator grasps the han-.

dle 38 and turns the cutting block 34 to a position over the die. In this operation an expert can so time the movement as to cause the circular portion 39 to pass under the head 20 while the same is elevated. Should he not do so, however, no harm is done, as

the sidevof the ortion 39 will simplystrike the side of the sad 20 and when the'latt'er next rises the former will immediatel jslip under the head. 'As the latter desceii s1, the

cutting block is forced downward, pressing the pieces of leather over the die to cut a lift therefrom and simultaneously force it into the die. The cuttingblock is then again turned to one'side, or to. the position shown in Fl 3. A suitable can of paste (not.

shown is preferably supported on the manaeaeoe proceedsto assemble other pieces of leather u on the die in the same manner as prevlously described. This operation continues until the heel-blank proper has been built to the desired height, after which the next operation is to apply the rand to the heelblank. This is done by'the operator grasping the knob 7 7 and turning the rand-holder 69 from the position shown in Fig. 6 to that shown in Fig. 7, and then inserting a rand 70 under said holder; after which the cutting block is again turned to operative position, and the rand is cut and simultaneously forced into the holder and into firm contact with the heel-blank. The latter will then have the appearance shown in iii s. 10 and 11, in which the rand 70 is shown rmly united to the heel-blank proper, indicated by er the heel blanks firmly together, and to press the rands firmly against the heellanks, to insure the firm union or the assembled pieces, and at the same time permit suiiicient time to elapse before removing the heel-blanks from the holder to allow the paste applied to the lifts to set, the invention contemplates the building up of a series of separated heel-blanksin the holder, the pressure being afi'orded by the continuous forcing of the heel-blanks downward in the holder against a desired degree or resistance regu ated by adjusting the contact screws 51, as previously described; and the timeelement being afforded by the gradual forcing of each heel-blank through the holder, as above described. in proceedingholder and will be found to have its pieces firmly united and with the paste set, and in this and other respects to be in condition for the compression, which latter operation,

,of course, is performed in a separate ma chine in the ordmary way. it will thus he seen that the invention presents a constantly-acting cutter for enablmg the operator to re idl impart straight edges to the pieces of eat or selected, and that the move ment of this cutter also afiords a means for actuating the cutting block, so that extreme simplicity, facility of operation, and economy of working parts is secured. it will also be noted-that not only does the invention provide .a ready means for assembling and cuttin pieced lifts, but it also afi'ords messes applied to the heel-blanks as they are gradually forced downward in the holder to cause the parts thereof to be firmly united and the requisite time is afiorded to permit the paste used in cementing the parts together to set.

It has been found in actual operation that it is not necessary to use nails in heel-blanks thus constructed, as the lifts-are so firmly united that they will not become displaced in the subsequent operations to which the heel-blanks are subjected. however, one or more nails may be applie to each heel-blank by an ordinary nailing machine, as will be understood by those skilled in the art. 4

It will be obvious to those skilled in the art that the present machine can be used for making a continuous log, such as are a now employed in the art, and from which combination with adie,

' said die, a cutting*block mounted on the individual lifts are cut or sawed off, instead of making separate heel-blanks by interposing. plates between successive series of assembled lifts, as described herein.

We claim:

1. In a machine of the class described, in combination with a die, a constantly-recipe rocable, ipivotally-mounted actuator located above said die, and a swinging cutting-block movable to a position under said actuator. 2. In a machine of the class described, in combination with a die, a reciprocating actuator located above said die, a swinging frame, and a cutting-block yieldably mounted in said frame and movable thereby to a position over said die and under sald ac: tuator.

3. In a machine of the class described, in combination with a die, a pivotally-mounted bar having an extension located above said die, a cutting-block mounted on the machine and movable to a position over said die and under said extension, and means for rocking said bar on its pivot whereby its extension will engage and depress said cutting-block.--

.4. In a machine of the'class described, in

ed bar having an extension located above machine and movable to a position over said. die and under said extension, and

means for constantly rocking said bar on its pivot wherebyits extension will engage and depress said cutting-blockwhen the latter,

is moved to a position under said extension. 5. In a machine of the class described, in

If preferredi a pivotally-mountfrictionally engage the column of lifts and to be actuated by the movement thereof in said holder to indicate the thickness of successive lifts cut by said die and forced thereinto by said cutting-block.

7. In a machine of combination with a combined die and heelblank holder of indefinite length, an indicator having a member adapted to be moved, against the force of gravity, by the move ment of a column of lifts in the holder, and means for interrupting at will the operative relation of the indicating device wlth said column to permit said member to fall .to the zero osition.

8. n a machine of the class described, in combination with a combined die and heelblank holder of indefinite length, a cuttingblock cooperating with the die, an indicating device comprisin a adapted to engage and be rotated by the column formed by lifts successively cut by said die and forced downward therein by said cutting-block, and a member actuated by the turning of said wheel to indlcate the thickness of the successive lifts cut, and means for moving. said wheel out of engagement with the column of lifts to permit said ;member to return to the zero position. p

9. In a machine of the class described, in a move the friction wheel from contact with said column, the combination operating as described.

10. In a machine of the class'descr bed, m combination with a die and a swmgln depressible cutting-block cooperating t or with, a relatively stationary scraperoperating with said cutt block, d em the class described, in Y friction wheel a against the resistance of its spring to re-.

tee

tioned to have the bottom of the cuttingin theswinging movement of the cuttingblock. I

12. In a. machine of the class described, in combination with a cutting die, a renniholder cooperating with said die, and adepted to hold a. rend. in position on the cutting end of said die,

13. In a, machine of the class described,y

in combination with a die, a depressible table surroundin the die, and a rand-holder cooperating wit with seitl table.

It. In a machine of the classdescribed, in combination with a die, a depressible tahlesurroundin said die, and a plvotelly mounted rend-ho der cotiperatin with said. die and dlepressible with said tab e.

In testimony whereof, we have hereunto set our hencls in presence of two subscrib-- ing witnesses.

WILLIAM WOLFE. DENNIS PARKS. Witnesses:

I GAL Pnnmne'rom- Staten HILL said die and depressible

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