US1126903A - Machine for making blanks for heels. - Google Patents

Description

J. F. STANDISH.

MACHINE FOR MAKING BLANKS FOR HEELS APPLICATION FILED P3314, 1912. I 1,126,903. Patented Feb. 2, 19 15 2 SHEETS-SHEET 1.

= ki I A iii l WT/VESSES m 2% W J. P. STANDISH.

MACHINE FOR MAKING BLANKS FOR HEELS.

APPLICATION FILED FEB,14,1912

M26303. Patented Feb. 2, 1915.

2 HEETB-SHEET 2.

UNITED, STATES PATENT OFFICE.

JQHJ}? F. STANDISH, OF WINTHROP, MIA$SACHUSETTS ASSIGNOR TO UNITED SHOE MACHIN ERY COMPANY, OF PATERSON, NEW JERSEY, A CORPORATION OF NEW JERSEY.

MACHINE FOR MAKING BLANKS FOR HEELS.

Application filed February 14. 1912.

To all whom may concern Be it known that I, JOHN F. STANDISH, a citizen of the United States, residing at \Vinthrop, in the county ofJ-Suffolk and State of Massachusetts, have invented certain Improvements in Machines for Making Blanks for; Heels, of which the following description, in connection with the accompanying drawings. is a specification, like reference characters on the drawings indi- (rating like-parts in the several figures.

This invention relates to improvements in the art of making blanks or logs of leatherboard or other fibrous composition for use in the heels of boots and shoes.

It is an object of the invention to provide a inachinel by the use of which such heel blanks or ilogs may be produced directly from leather board pulp as distinguished from the blanks or logs heretofore constructed by uniting a number of separate layers of leather-board.

To this end an important feature of"- the invention consists in the provision of a mold carrier having molds of the shape desired in the blanks to be produced and means for feeding leather-board pulp from a tank in which it is contained in suspension into the molds of the carrier where it is compressed.

Q and shaped. By employing a machine of this typev it is possible to produce an integral heel blank of any desired height shape and therefore numerous steps which have been necessary heretofore in the production of finished heels are eliminated.

It has been. found thatthe best results are secured by delivering the leather-board pulp to; the molds in thin successive layers or films and by pressing each layer firmly upon the previously received material in order that its fibers may become interwoven therewith and a, firm homogeneous article result To this"end, anotherimportant, feature of the invention consists in the provision of pressing means within the molds arranged to subject each successive layer of pulp to pressure as it is received. As herein shown the mold carrier comprises a cylinder and. thessepa-rate molds extend inwardly from its periphery and are each provided with. a presser plate. The. mold; carrier rotates in engagement with a roller and the put is deliveredtothe molds andpressedinto t em against theresser. plates b being,intno-v Specification of Letters Patent,

plates in the molds Patented Feb. 2, 1915.

Serial No. 677,540.

duced between the roller and mold carrier. An endless apron or belt afiords a convenient means for feeding the pulp to the molds.

In starting the building operation the presser plates are arranged to project slightly beyond the periphery of the mold carrying cylinder so that they are forced yieldingly inwardly when they engage the layer of pulp upon the apron between themselves and the roller. In accordance with the present invention it is proposed to make the entrance to each mold of smooth material. such as polished brass, to which the pulp will not adhere and to make the prcsser plates of rougher material, such as cast iron, which will become coated with pulp. .\fiter the presser plate has been once coated the successive layers of pulp will adhere to the compressed pulp held on the plate rather than to. the smooth portion of the mold carrier with which it comes in contact. It will be. seen that at each rotation of the mold carrying cylinder a new layer of pulp is deposited upon the presser plate which, in turn. forced into the mold as the blank gradually increases in thickness. During the building process it is important to pre vent the outward movement of the presser as this would eject the partially completed blanks.

To this end another feature of the invention consists in the provision of presser plates which are arranged for inward movement in opposition to the action of compres sion springs. but which are automatically locked'against outward movement.

The invention includes, as another im' porta'nt feature. means for releasing the presser plates when blanks of sufiicient thickness have. been built in order that tlie finished blanks may be ejected from. the machine.

Another feature of the machinerelates to provision for-"handling the finished blanks when they are ejected and for conveying them, away from the machine in which they are built. As. herein shown this is. effected by arranging an endless conveyerto. run

adjacent to the mold carryingcylinder and to, neceive the blanks directly from the-molds. and convey them to a dryjng rpomiorother' plaice desired. Preferably the conveyor will be. provided with shelves spaced to cor. respond with the spacing of the molds. and

'1" Fig. 4 is a Y in this case each or tier of molds will ennu itself into a separate shelf on the conc and other features and advantages .t to the invention will be best underd appreciated from the following on of a preferred embodiment elected f r purposes of illustration and in accompanying drawings in hi ch Figure 1. is a L'lQW of the machine in side elevation; Fig, is front view cfthe machine I 'ly in section Fig. 3 is a View in perspe bl "1k pressing member;

v 1 f; pective of one section of the drum showing the molds; Fig. 5 is'a detail view of the mold locking device; Fig. 6 is a View in perspective of a mold and presser' plate for building a heel log.

. in which is contained the leather-board pulp. An endless belt or apron running over suitable rollers receives the pulp from.

the tank and conveys it between the lower roller 6 and the cylinder 12. In passing between the roller and cylinder the film of leather-board pulp .on the apron adheres to the pressing plates 14 in the molds 16 of the cylinder 12 and is removed iromfthe apron 50. The leather-board pulp gradually builds up on the presser lates 14 forcing them inwardly in the molds against spring pressure. During the building operation the presser plates are locked against outward movement and are released only when blanks of suflicient thickness have been produced in the molds. When this cc iti is reached the pressing plates are released and the finished blanks are ejected into a traveling conveyer 100 by which they are carried to the drying more.

Haring briefly outlined the operation of the machine details of construction will be more particularly described.

hint-ire power to run the machine is supplied by belt 211:0 a pulley 20 fast on a shaft 92 jcurnaled at one side of the frame and carrying a gear wheel 24 which meshes with a larger gear wheel 26 on tl" shaft 4 of the lower roller 6. Above and within the tank 52 are provided suitable rollers, over which runs the endless apron 50 of textile material. The outer roller 56 carries the apron into engagement with a transferring drum 57 which 18 partly submerged in the 1,12e,cos

tank 52 and which serves to collect the pulp from the tank and from the incoming stream of fresh pulp and transfer it to the apron. From the roller 56 the apron runs between the cylinder 12 and b ttom roller 6. then downwardly about the roller 6 and back partly through the tank to the roller56.

The cylinder 12 is driven from a sprocket wheel 28 which is secured to a gear wheel 29 and with it turns loosely on the opposite end of the shaft 4 from the gear wheel 26. The end of the cylinder shaft 10 is provided with a sprocket wheel :30 over which runs a sprocket chain 82 which passes also about the sprocket wheel The gear wheel 29 is driven in the proper direction through an idler 31 by a gear wheel similar to the gear 24 but upon the end of the shaft 22 not shown in the drawings. As the cylinder 12 and the sprocket wheel 30 are vertically movable with respect to the sprocket wheel 28 there is provided an idle pull y 34 mounted on the arm 36 which is arranged swing outwardly under the actuation of the spring 38 and so take up any slack in the sprocket chain 32.

The frame 2 has upwardly extending standards provided with vertical uideways for journal boxes 8 of the sha t 10 and these boxes rest normally upon adjustable stops 40 set in the frame 2 and are pressed downwardly by stifli' compression springs 42 interposed between the to of the hearing boxes 48 and vertica y adjustable plates 44. v

The cylinder 12 is composed of a pluralitv of sections held in place by bolts 13 extendin'g'th'rough the heads of the cylinder. 1n each section are formed a series of molds 16. The molds 16 extend inwardly from the surface of the section for a distance some what greater than the thickness of any heel blanks which it might be desired to build. At the inner ends of the mold-16 the section is cut away to receive a presser bar having a plurality of shanks 61 upon each of which is mounted a presser plate 14.- having the shape of a mold. From the inner side of the resser bar 60 projects a air of rods 62 each of which is surrounds by a com pression spring 18 beari. its inner end against a bar 64 coinpr a stationary part of a section and he ckets to receive the springs 18. The t dings 18 there fore act to force the resser bar and the pr'esser plates 14 outwardly, their action bein overcome gradually as the leather-board p p accumulates u on the face of the presser plates 14 an forces the plates 111' wardly.

The outer ends of the molds, where they extend to the periphery of the mold carrying cylinder, are provided with a, raised beading 15 which is rounded and smoothed or polished so that the pulp will have no tendency to adhere to the outer surface oi the sections.

lt'is important to providemeans for preventing outward movement of the presser plates during the heel buildin operation and one desirable means for e ectmg this result is illustrated herein. As shown in Fig. 2 there is provided a tapering socket tit) in each side ot' the sections adjacent to the sides of the presscr bar (it) and in each of these sockets is disposed a roller 68. The sockets (i6 taper outwardly and the rollers o3 are yieldingly moved toward the shallower end of the grooves by the forked an le levers 70. The rollers (t8 therefore jam 'etween the sides of the presser bar (it) and the bottom of the sockets in such manner as to prevent outward movement of the presser bar (it) but leave it free ,to move inwardly. The forked levers 70 are acted upon by compression springs T2 which tend to swing their outer ends away from the cylinder head. When it is desired to release the presser bar tit) and permit the blanks to be ejected from the molds it is necessary only to swing the ends of the levers T0 inwardly so that the rolls 68 shall be carried into the wider ends of the grooves i preferred mechanism for relcasin the presser bar (30 is shown in Figs. 1 an 5. trip arm 74 is pivotally mounted on a rod T set in the side of the frame and is normally pulled outwardly by a compression spring 79 acting on a pin 77 pivotally connected .to the trip arm. The outer end at the trip arm stands in the path of a cam piece 78 fast to the upper end of a rod Rt! pivotally connected to the hand lever 81. The hand lever is normally held in an elevated position by the tension spring 92. \Vhen the lever 81 is depressed the cam piece 78 is moved downardly and the trip arm 74 swung inwardly int the path of the other ends of the forked levers 70 as they are carried past the trip arm by the rotation of the cylinder 12. Tt will be. understood that. the levers 70 on the end of the cylinder not shown in Fig. l. are released by the operation of the hand lever R1 simultaneously with the release of those on the near end of the cylinder. To efiect this result the lever 81. is keyed to a transverse rockshatt 83 which carries at its other end a short arm and cam piece arranged to operate on a trip arm similar to the trip arm 74 shown in Fig. 1.

\Vhen the presscr plates are released the presser bar (it) is moved outwardly until it encounters the inner ends of the partitions between the molds 16 which prevent further movement. In this position of the presser bar the presser plates are substantially flush with the outer surface of the raised beading 15%.

The finished blank are ejected from their molds into the traveling con veyer 100 by the action o the s 'ipgs l8 t The conveyor runs over a um to the has on one end a sprocket wheel ,3 connected through the chain 9.4 with a sprocket wheel not shown but arranged to rotate with the idler 31. he conveyer is provided with a series of shelvesOrPockets 1,02 and on account of the ositive'eomlection between the cylinder an the drum 9O throu the gearin above described the shelves 1 2 are maintained in the proper relation with the sections of the cylinder to receive the ejected blanks. Accordingly when the hand lever Stis held in a depressed position, each section automatically empties itself into a successive shelf on the conveyer. The conveyer may be extended to any convenient point and the blanks thereby delivered directly to the drying room, if desired.

In the foregoing description reference has been made to heel blanks but it should be understood that the machine herein shown is adapted. without material change, to be used in producing separate litts rather than entire heel blanks. as the thickness of the blanks depends primarily upon the interval occurring bet'oi'e the hand lever 81 is opcrated. The shape of the molds is immaterial to the operation of the machine and in ase blanks of different shapes are required. they may be readily produced by substitui ing other sections having diilerently shaped molds. ll. for example. it is preferred to build a heel log instead of separate heel blanks in the machine herein shown. sections similar to those illustrated in Fig. t may be substituted for the sections having the individual molds. As shown in Fig. 6 the section is provided with a mold exten din across the whole width of the cylinder ant the. presser bar (it) is provided with a single pressing ilate 15o. In such asection therefore a s lab or log will be built the length of which is equal to that of the cylinder 12. Such a slab is adapted to be-cut or sawed up subsequently into separate heel blanks. 4

Having described my invention. what I claim as new and desire to secure by Letters Patent ot' the United Statesisil. A machine of the class described having. in combination. a carrier having a pluality of separate molds. means for delivering successive layers of pulp to each mold and means movable relatively to the molds for mechanically pressing the contents of the mold at each delivering operation.

2. machine of the class described having. in combination. means for collecting a continuous layer of pulp. and means for removing successive portions of the pulp from the collecting means and shaping them into eparate blanks.

3. A machine of the class described having. in combination, means for collectin of pulp. and means for removing suctic/buff? pozticns of the pulp from the layer and. simultaneously with their removal, pres-sing them to shape them into separate in lLlYEliS.

l. A machine of the class described having, in combination, an endless apron for co let-ting and conveying a layer of pulp, a pair of oppositely disposed rollers between which the n pron runs. and a circumferential series of molds in one of the rollers for reapron,

v-eiving pulp from the class described hav- 5. A machine of the ing. in combination, a tank for containing leather-board pul 3 in suspension, a cylinder having a series oi separate molds, :1 prcsser plate in each mold, and means for conve ving the pulp from the tank and delivering it to the molds.

6. A, machine of the class described hav ing. in combination. a mold having therein a presser plate mounted to yield relatively ll'lfilettl. and means for successively forcing layers of pulp into the mold against the a tion of the presser plate.

T. A machine of the class described ha ,ng. in combination. a mold having a presser plate arranged for yielding movement in wardly but being automatically locked against outward movement, and means for delivering material to be shaped to the :zilld.

8. A machine of the class described having, in combination. a cylinder having a luralit v of -t:ircumferentially arranged molds therein, n roller arranged to inn in engagement with the cylinder. means for iieldinglv forcing the cylinder and roller 3min each other. and means for mg pulp between the roller and cylinder in order that it may fill the molds.

9. A machine of the class described hav' ing, in combination, a cylinder for lnlilellllg leather-board having oppositely disposed heads, and removable sections secured to the l'ieadveach section having a series of separate molds and a presser plate within each mold.

H). A machine of the class dew-allied having, in combination, a mold earcv ing cylinintrminc der having a pluralit; of mold cavities in its periphery and a smooth raised portion surrounding the outer end of each cavity.

11. A machine of the class described huv ing, in combination. a cylinder having molds formed in its periphery and a smooth por tion surrounding the opening of each mold, together with movable resser plates located in each mold.

.12. A machine of the class described ha ing. in. combination, cylinder having a plurality of molds, a presser plate in each mold, springs acting to force each presser plate outwardly in its mold, and means not ing normall to prevent movmncnl of tho presser plates outwardly but perinittin; their movement inwardly.

13. A machine of the class described hav ing. in combination, a cylinder lnning n plurality of molds. messing means within each mold. locking devices acting normally to prevent the outward movement of the pressing means. nd means for rendering inoperative the llVlIlIl devices.

14. A machine of the class ilescribwl hm ing, in combination. a carrier having a plurality of mold sections. each section comprising a series of separate mold ca ities extending inwardly from its surface and having a chamber located at the inner ends of the cavities, a pressev bar disposed within the chamber, and presser plates secured to the presser bar.

15. A machine of the class described having. in combination. a rotatable carrier having molds spaced upon its yieripl'ierv. a convever having shelves spaced from each other by distances equal to the spacing of the molds, and means for positively driving the carrier and, convever in such relation that. the molds and, shelves shall be in register.

In testimony wherein l have signed my name to this specification in the presence of two subscribing Witnesses.

JOHls F. STANDISH. lVitnesses A. W. TODD,

HERBERT W. Knxwnv.

Images