US989059A - Heel-building machine. - Google Patents

Description

C. 0. RYBERG. IIIIBL BUILDING MACHINE. APPLICATION FILED MAR. 8, 1910'.

989,059. Patented Apr. 11,1911.

4 SHEETS-SHEET 1.

: i 02m/f2.9@ a @7169 u I 2 l gliBwatlhlvlnvA @JWN ff/22,5:

C. O. RYBERG. HEEL BUILDING MACHINE.

ARPLIoATIoN FILED MAR. e, 1910.

989,059. Patented Apr. 11, 1911.

C. O. RYBERG.

HEEL BUILDING MACHINE.

APPLIoATIoN FILED MAR. a. 1910.

Patented Apr. 11, 1911.

ivm?? 67247219@ @y 36 y AXM 4 SHEETS-SHEET 3.

C. 0. RYBERG.

HEEL BUILDING MACHINE.

APPLIUATION FILED MAB.. 8, 1910. 989,059. Patented Apr. 11, 1911.

4 SHEETS-SHEET 4.

4.707 Jing, y/

Vf E@ UNITED sTATEs PATENT onirica,-

CHARLES O. RYBERG, 0F BROCKTON, MASSACHUSETTS.

HEELfBUILDING MACHINE.

`'Specification of Letters Patent.

Patented Apr, 11, 1911.

Application led March 8, 1910. Serial No. 548,066.

To all whom it may concern.'

Be it known that I, CHARLES O.; RYBERG, of Brockton, in the county of Plymouth and State of Massachusetts, have invented certain new and useful Improvements in Heel- Building Machines, of which the following is a specification.

This invention relates to heel building machines.

A relatively large proportion of the lifts which are assembled to form heels are composed of relatively small pieces or sections laid edge to edge, the purpose being to utilize in this way small pieces of leather which would otherwise be too small for producing complete lifts.

One purpose of the present invention is to provide a heel buildin machine comprising a plurality of closey organized units, each unit including a complete mechanism for cutting and assembling relatively small i pieces lof leather to form composite lifts thereof, y

In carrying out the invention the cuttin dies of the several units are rovided wit .cutting edges having the out ine of a heel and with interior cutting blades'dividm the picking up a piece at random may selectl fromthe several cutting devices a cutting section closely resembling the'y piece in hand and with the aid of a mallet a section of a lift may be severed from the piece by laying the piece upon the appropriate cutting edges and striking it with the mallet.

In addition to the Wide variety and shapes of cutting devices the invention provides means for pivotally supporting t-he several cutting dies upon axes intersecting the dies and extending transversely thereof, In other words, the dies are mounted upon trunnions and are. adapted to be inverted,

In putting the device into pragice the pieces of leather are laid upon t e upper end Aof the cutting edges and the blow of the mallet is given while the work is in this position. After 'the several divisions of the lift have been cut and depressed into the die by the mallet the die may be inverted and or cement in the manner hereinafter eX plained.I

As a further development of the invention the cutting dies are provided with cutting edges .at both ends, said cutting edges being oppositely disposed so, that either end of the die may cut and receive the work. An advantage of providing double-edged cutting dies is that the arrangement of the interior dividing blades at one end may be unlike the arrangement at the other end, with the result that the dividing lines between the sections of one lift may not register with those of the contiguous lift. When first one end and then the other end of a die of this character is employed to form a column of composite lifts of an alternate structure the fastening together of th'e lifts by cement is rendered entirely efficient. It may be desirable to provide a whole life or one-piece lift, to hold together the several sections of a composite lift, and for this reason the interior dividing blades may be omitted from one end of the die. The several units thus constructed and arranged may be combined 4in aycompact mass upon a bench or bedplate..l According to the arrangement illustrated the expansible molds are arrange vertically in a bed-plate and are open at the bottom so that the lifts inserted at the top may be `forced out at the bottom. If desired 'each mold may be provided with a chute to receive the lifts forced out at the bottom` said chute being detaoha-bly arranged so that it may be removed when it becomes iilled with lifts.

The invention further provides abutments for supporting the dies against the blow of the mullet and, eoacting projections extending laterally from the dies which are adapted to be seated upon said abutments. Each cutting die is mounted in a carrier by which it mayf be .moved to itsseat upon The upper end the opposite ends of the die are permanently related to each other, whereas in the other form the cutting edges at the two ends are arranged in a holder or clamp and may be removed to permit the'substltutron of other cutting edges. In the latter 1nstance the holder or clamp constitutes an element of the die carrier. forms illustrated the cutting dies are provided with ejectors by which the lifts or sections thereof may be ejected. The ejectors are permanently, but movably, arranged within the dies and are adapted to be moved in opposite directions so as to eject the work rst from one end and then from the other end. The provision of these doubleacting ejectors is not disturbed in any way by variation in the arrangement of. the cutting blades at the two ends of the die:

Of the accompanying drawings. which form a part of 'the speciiication, Figure 1 represents a top plan View of a heel b ulld ing machine including a plurality of independent heel building units. Fig. 2 repre* sents a front elevation thereof with one of said units in vertical section. Fig. 3 represents a horizontal section on line 3 3 of Fig. 2. Fig. 4 represents a vertical section of a machine in a plane extending from front to rear. Fig. grepresents a vertical section in a front to rear plane including the upper end of an expansible mold and one form of cutting die. Fig. 6 is a section similar to Fig. 5 showing the die in another position. Fig. 7 is a section similar to Fig. 5 showing the cutting die depressed. Fig. 8 illustrates a pair of ejectors in perspective. 9 is a vertical transverse section, including the upper end of an expansible mold and a cutting die having removable blades. Fig. 10 is a section similarv to Fig. 9 showing the die in another position. Fig. l1 is a section similar to Fig. 9

showing the die depressed. Fig. 12 represents in perspective a split clamp or holder for the removable cutters.l Fig. 13 represents in perspective a pair of complemental cutters. Fig. 14 represents in perspective a set of ejectors including a single member for one end and complemental sections for the other end of a double-edged die. Fig. 15 represents a top plan view of a, lift. Fig. 16 represents a horizontal section of an expansible mold taken on line 16-16 of Fig. 5.

The same reference characters indicate the same parts wherever they occur.

In all of the Referring first to Figs. 1 and 2 it will ybe observed that a plurality of independent cutting and assembling units-are arranged in close relation in a bench or frame which includes a bed-plate 2O and supporting legs 21. openings 22v over which relatively heavy plates or blocks 23 are arranged. The upper surfaces of the plates constitute seats or abutments for the cutters hereinafter described. Each plate is formed with an opening 24, which is substantially heelsl'iaped but considerably larger than a heel lift. 25 in which are arranged vertically movable plungers 26. The plungers are arranged at opposite sides of the opening 24 and their upper ends are provided with trunnions 27 The trunnions are in the form of screws and they are adjustable toward and from Yeach other. The screws serve as pivotal supports for a cutting die and the die may be moved into the opening 24 by depressing the plungers 26. The plungers are normally elevated by springs and may be manually depressed against the tension of the springs. The springs are indicated at 28, and are coiled on the plungers and compressed between the bosses 25 and the heads 29- at the upper ends of the plungers. Any preferred form of manually operative device may be provided for depressing the plungers. As shown by Figs.\2 and 4 the lower ends of' the plungers are connected to rods 30 and the rods are in turn connectedto arms or levers 31.- The two arms 31 foreach unit are formed upon, or other wise rigidly secured upon a rock-shaft 32. The rock-shafts are mounted in bearings in fittings 33 adapted to be secured to the floor. The rock-shafts all eXtend from front to rear of the machine and their front ends are provided with treadles 34. For the convenience of the operative the treadles may be positioned in staggered relation asv shown by Fig. 3. The connecting rods 30 may be provided with turn` buckles 35 and the plungers 26 may thereby be adjusted so that the trunnions 27 of each unit shall be in alinement. y Y

The cutting die shown by Figs. 5, 6, and 7 has cutting edges at both ends, said cutting.

The bed 20 is provided with vertical g Each plate 23 is provided with bosses edges being oppositely disposed so as to be its trunnions 27.

in the cuttin edge 36 being indicated at 37. In this orm of die there is a single interior cutting blade at each end which divides the space into two sections. The blades 37 and 37 are preferably arranged to produce sect-ions whose seams .when the sections the die. The diameter of the opening 24 in the plate 23 is such as to admit the end of the die, but to coact with the laterally extending faces 38 of the flange 38. When the operative wishes to cut a lift or a section of a lift he depresses the treadle connected with the desired cutting die so as to place the flange 38 upon its abutment. lVhile the dle is thus seated a piece of leather is placed upon the cutting edge which is uppermost and the mallet may be brought down upon the work to cut a piece of the desired shape. lVhen the entire space within the marginal cutting edge has been filled with one or more` pieces of leather the piece or pieces may be transferred from the die into the expansible mold attached to the under side of the plate 23. The method of transferring the work consists in releasing the treadle so that the springs 28 may elevate the die from its abutment so that the die may be inverted upon After the die has been inverted the treadle may be again depressed to seat the flange 38 upon its abutment. The work which is then at the lower end of the die is ejected by downward pressure upon its upper surface. For the purpose of transferring the work from the die to the expansible mold the die is provided with ejectors which are movable in opposite direct-ions and are adapted to eject the work from either end of the die. The ejectors included in Fig. 5 comprise plates or blocks 39 and 39,

which are of the same general shape as thel space within the blades by which they are surrounded. T he plate 39 atone end of the die and the corresponding, plate 39 at the opposite end of the die may be rigidly connected with each other by a stud or shank 40 (see Fig. 8).. 'As shown by Fig. 5 a transverse partition 41 divides the die between its ends, and the studs 40 extend loosely through the partition. The partition serves to strengthen the die, and serves also as means for preventing the ejectors from dropping out of the die. In this form the dividing blade 37 at one end of the die is parallel; to the dividing blade 37 at the opposite end. The ejector plates 39 are therefore similar in shape to the ejector plates 39.

The division between the sections ofl one lift is therefore at an angle to the divi# sion between the sections of the lifts which are prepared by the opposite end of the die because the die is inverted for each operation so that the successive lifts are prepared alternately by first one end and then the other end of the die. The work-engaging surfaces of the ejectors are so spaced with relation to the length of the die that they may be depressed to the horizontal plane of the lower edge of the die, and at the same time the ejectors at the upper end of the die are depressed below the up er edge of the die" slightly more than the thlckness of a lift. The ejectors may be actuated by striking thel upper surfaces individually or by first laying on the upper end of the die the pieces of leather which are to form the next lift, and by effecting ejection of the previous section by the blow which severs the new section.

In the form shown by Figs. 9 to 14 the cut-ting blades are removably secured in a contractible clamp or holder. In this forni the holder comprises two clamping members. As shown by F i 12 each clamping member is formed with anges 42 and 42 extending longitudinally and with a transverse partition or 'abutment 43. The flanges 42 combme to form al1 outline like that of a heel, but the clamping members are divided longitudinally in a plane at one side of the center of the line. lThe larger of the two clamping members 'is provided with sockets 44 which are adapted to receive the ends of the trunnions 27. The clamp or holder may be considered as a part of the die carrier inasmuch as the cutting blades may be removed without removing the clamp from the trun nions. As shown by Fig. 9 two complemental cutting blades 45 and 45 are arranged in the up er end of the clamp or holder so that t ie cutting edges project above the flanges 42 and so that the bottom edges are seated upon the partit-ions or abutxnents 43. The cutters 45 and 45 arev il1us.

trated separately by Fig. 13. The two pieces of leather produced by these cutters combine to form a lift. The abutting walls of these cutters may be provided with'transverse holes for the reception of a connecting bolt 46. In the lower end ofthe holder as shown by Fig. 9 is arranged a cutter 45 which bears a relation to thecutters 45 and 45 similar to the relation existing between the cutters 36 and 36 of Fig. lThe cutter 45. however, is not divided by interior blades but is adapted to sever an entire lift consisting of a singlepiece of leather. The two sections of the clamp or holder are yformed with holes extending transversely through the partitions 43 for the reception of the clamping bolt 47. By means of a nut 48 screw-threaded upon one end of the bolt 47, and ahead 49 on the opposite end of 45, 45aand 45 are vwhich becomes the breast of the he the bolt the two sections ofthe clamp may be drawn together to clamp the several cut-l 45 and 45a when the sections of-that lift are brought together. The width of the cutter 45 is therefore slightly less than the aggregate width of the cutters 45 and 45a, and for this reason pieces 50v are inserted between the lower flanges 42 and the cutters 45 tol effect equal clamping of the upper and lower cutters when the two sections of the clamp are compressed. The manner of operating` this form of die is the same las that prescribed for operating the die shown in Fig. 5, and the ends of the flangesv42 and 42 coact with the upper surface of the plate or abutment 23 to support the cutters against the blowlof the mallet. The cutters provided with ejectors 51, 51a and 51 (see Fig. 14). 51 and 512L which constitute complement-al sections are connected with the ejector 51 which entirely fills the space in the cut-- ter 45. For this reason the partitions or abutments 43 of the clamp are cut away to provide sufficient space for the longitudinally movablerods 52 by whichthe ejectors are connected.

The preferred manner of assembling the lifts produced by the cutters shown in Fig. 9 is to first severl an entire lift by the cutter 45 and then deposit the llift in the expansible mold beneath the plate 23. The cutters 5l and 5la are then used to sever complementalsections of a lift, and a layer of glue or cement is then applied to the upper surface of the sections in the cutters. lVhen the cutters have been inverted aaidthe sections have been ejected the glue-laden sur' faces are laid in Contact with the one-piece lift previously ejected. By thus depositing first an entire lift without glue, and then a sectional liftwith glue the lifts become assembled in a column of which the sections of each sectional lift may adhere to anl entire lift, and the column is composedl of pairs of glued lifts. A

The eXpansible mold Vis shown by Figs. 2, 4, 5, 9, and'16 and comprises three sections indicated respectively at 53, 54 and 55, The

sections 53 and 54\are curved as shown by Fig. 16` and the section 55 is preferably straight and engages the edge of heift ny preferred form of yielding means may be provided for normally compressing the sec tions 53, 54 and 55 for the purpose of assembling the several pieces of the sectional The ej ectorsv -of its use, what I claim is lifts so that their complemental edges shall be brought together. 'Ihe upper ends of the sections 53, 54 and 55 are beveled as shown by Figs. 5 and 9 so that the compressing of the edges of the lifts is occasioned by depressing the column of lifts. The several sections of the mold may be provided with lugs or ears 56 extending laterally to receive screw bolts 57.. As shown on the drawings the bolts extend through the ears 56 and also through the plate 23.

A convenient form of yielding device for compressing the sections of the mold consists of one or more strips 58 of soft wire lor other flexible material, and a helical spring 59 connecting the ends of each strip. The strip 58 and spring 59 are arranged so as to surround the mold, the strip 58 embracing the curved sections 53 and 54 and the spring 59 embracing the breast section 55. The adjacent edges of the curvedsections 53, 54

may be provided with ears 60 and 61 to receive a set screw 62. The set screw is threaded in the ear of one section and abuts against theI ear of the other section to limit the closing of said section.

As shown by Figs. 2 and 4 the lower end of the expansible mold is formed to receive one end of a chute 63. The chute may be formed of sections 64, 65 and 66 corresponding to the sections53, 54 and 55. The chute may likewise be provided with yielding means such as strips 67 and springs 68 corresponding respectively to the strips 58 and springs 59. When the chute becomes filled `it may be removed from the mold and be replaced by an empty chute, or if desired the chute may be left in the position shown and the lifts may be permitted to drop from the lower end upon the Hoor or into a receptacle provided therefor.

I-Iaving thus explained the nature of my said invention. and described a way of con- 'structing and using the same, although withoutattemptingto set forth all of the forms in which it may be made or all of the modes 1. In a heel building machine, a contractible die holder having transverse abutments, a plurality of separable cutting dies arranged in said holder and seated von said abutments, means for compressing said holder to secure said-cutting dies, a bed, and a carrier for carrying sad,holder to and from said bed, said die holder being pivotally mounted in said carrier. so as to be seated on said bed with either end uppermost.

2. In a heel building machine, a die holder consisting of two clamping members and means for contracting them, transverse abutl ments on said clamping members, a plurality of separable cutting dies arranged and clamped one against another in said holder and seated on said'abutments, a carrier for and rigidly support saidholder to receive lthe blow of a mallet.

3. In a heel building machine, a die holder consisting of two clamping members and means for contracting them, said clamping members having clamping flanges and trans- `verse abutmentsbetween the ends of the flanges, a plurality of separable dies arranged in each end of said holder and seated upon opposite v'sides of said abutments, and clamped one against another by said flanges, the dies in one end being oppositely disposed with relation to those 1n the other end, and a carrier for said die ho1der,lsaid holder being pivotally mounted in said carrier so as to be adapted to present the dies at either end for operation.

In testimony whereof I have aixed my signature, in presence of two Witnesses.

CHARLES O. RYBERG. Witnesses:

HOWARD B. WILBUR, MARTIN JOHNSON.

Images