US 340350 A
Description (OCR text may contain errors)
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G. H. PERKINS'. Ho'RsBsHoE MACHINE.
NQl 340,350. PatntedApr-.20, 1886.
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. C. H. PERKINS.
Patented Apr. 20
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(No Model.) C. H. PERKINS.
No. 340,350. I Patented Apr. 20
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HORSBSHOE MACHINE. No. 840,350. Patented Apr. 20, 1886.
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G. H. PERKINS.
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C. H. PERKINS. HORSESHO MACHINE.
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CHARLES H. PERKINS, OF PROVIDENCE, RHODE ISLAND.
@PEGFICATGN forming part of Letters Patent No. 340,350, dated April 20, 1886.
Application tiled February 1, 1886. Serial No. 190,428. (No model.)
To @ZZ whom, it may concern:
Beit known that I, CHARLES H. PERKINS, of the city and county ot' Providence, in the State of Rhode Island, have invented certain new and useful Improvements in Horseshoe- Machines; and I do hereby declare that the following specilication, taken in connection with tlie drawings furnished andL forming a part of the saine, is a'clear, true, and complete description of the several features of my invention.
In a cotemporaneous application for Letters Patent I have disclosed certain comprehensive features of invention, and have illustrated thei r application to various forms of horseshoemachines.
My present application relates to certain features of invention'which are limited to that general variety ot' machines which embodya series ol'shoeforming dies continuously moved forwardly or in one direction upon and with a continueusly-traveling bed, asdistinguished from another equally well-known type of machines having a single forming die mounted upon and carried by a reciprocating bed, and it is to be understood that my said cotempo raucous application illustrates and describes a machine having such a series of dies, and also single-die machines, i'or the purpose of illustrating` certain l'eatures of invention common to all of them.
After fully describing the mechanism illnstrated, the features deemed novel will be specin'ed in the several clauses of claims hereunto annexed.
Itel'erring'to the drawings, Figure l illustrates in perspective a machine embodying my invention. Fig. 2 is a side elevation of said machine. Fig. 3 is a vertical section of the frame and the upper` portion of the machine; but it shows a revolving die-bed in'side view. Fig. 4 is a central lateral vertical section ofsaid machine. Fig. 5, in an enlarged plan vew, illustrates certain swaging-dies in detail. Fig. 6 is a section of a portion ofthe machine shown in Fig. on line x. Fig. 7 is a section on line y, Fig. 5. Fig. 8 is an enlarged side view of a portion ofthe revolving die-bed, and it also shows a portion ot' the frame of the machine iu section. Fig. 9 is an enlarged plan View of a portion of the periphery ofthe revolving bed, one of its formingdies, a horseshoe thereon, and certain leverjaws, by which the finishing bend is accomplished and by which the shoe is subsequently maintained in a clamped condition. Fig. 10 is a section of the parts shown in Fig. 9, on line z. Fig. 11 illustrates a portion ofthe diebed near its periphery and a certain spreading device by which the said lever-jaws are moved from their forming-die. Fig. l2 illustrates in plan a portion of the periphery of the revolving bed, a forming-die, a horseshoe thereon, and it also shows in section the studs with which said forming-die cooperates for initially bending a blank. Fig. 18, in several views, illustrates a blank in the form preferred by me for use in this machine. Fig. 14, in several views, illustrates a blank after it has been lswaged'at its ends in this machine prior to the bending operation.
The frame A of the machine may be widely varied inform` so long as due provisiouis made for'snitable bearings for the requisite movable parts and proper sup ports are al'o rded for such stationary parts as operate passively in connection with said movable parts of the machine. At the front upper portion of the fame there is an inclined table, a, upon and'across the upper portion of which a straight blank is placed for delivery to the machine.
In machines heretofore designed with aview to relying upon a series of shoe-forming dies mounted on a bed which always carries the dies forward, or in one direction, for co-operating with bending and hammering` mechanism in the-manul'iwture ot' horseshoes, said beds have been either in the form of disks rotating on vertical axes and carrying the series of forming-dies on the upper sideof the bed in a circular but horizontal path, or said beds have been composed of a series oi' rectangular die-blocks each having a forming-die thereon and all of them coupled together endwise, like the links of an endless chain,and mounted upon rag-wheel drums having horizontal axes. For obtaining the best results the series of forming-dies should he mounted on the periphery of a circular bed having a horizontal axis, and while the prime value of certain portions ot' my invention will accrue in the use ol' machines with die-beds so mount1 IOO ed, substantially desirable results will be obtained by their use in either of the otherstwo forms of machine referred to.
So far as my knowledge extends I ain the first to device a horseslioe-machine embodying a series of forming dies. which are always moved forwardly in one direction. in which a straight blank is tirst swagcd at its ends for thickening the heels ot' a shoe before said forming-dies proceed to cooperate with devices for bending the blank. I am also the first todevise andemploysueh a series ot'shoeforming dies in connection with hammering mechanism, and with a series of clampingjaws, which in pairs firmly hold a bent blank at a forming-alie, while said blank progressivel)y undergoes the hammering operation. I am also the first to devise and employ such a series of shoe-lorniing dies,'in connection with stationary studs, by which an initial bend is developed in the blank, and with a series of automatic leverjaws or any equivalent devices, which, working in pairs, develop a tinishing bend in the blank at the heels of the shoeand thereafter operate as clamping-jaws,- moving alongr with each die for so eontiningl the bent blank that a haminer can properly operate thereon while on its way through the machine.
The blanks as preferred by me for use in this machine are of such contour as can be readily developed by rolling. The v are also ot' proper length loi-one shoe, and have been previously creased and punched, as shown in Fig. 13.
ln describing the machine shown I will sequentially refer to the bending iiieehanisni. tlie hammer, and the swagiug mechanism, inl stead of prot-ceding in the order ot' their siiccessive operation upon a blank. The die bed 15, as here shown. is a comparatively heavy wheel or disk, and is mounted upon a heavy horizontal axis or shaft, b, provided at one end with a suitable. coupling, b', by means ol' which it cati be connected lo and driven by any suitable driver. rll-he periphery of said bed is provided with anydesired iiniiiber of properly-pi'tijeetiiig forming-dies. B', ot' which t'oui are here shown, at regularly-spaced intervals. These forming dies are detachable from the bed, so as to admit ot' the use ot' dies ofvarious sizes and ot such various shapes as are incident to horse aml mule shoes. In
making an initial bend in a blank each of sists in closing the two ends or Vheels `of the blank inwardly against the sides of the forming-die, near its'rear, and this-is accomplished by means of a pair 0f lever-jaws, e, as illustrated in connection with a bent blank, d, in Fig. 9. The lever-jaws are mounted upon and are carried by the die-bed, and each formingdie is provided with a pair thereof. words, one pair ol' stationary pendent studs, c, serves for all ofthe forming-dies consecutively; but these several pairs ot' lever jaws. after completing the bend, move forward with their forming-dies, and thereafter serve as clamps for properly controlling a bent blank during the succeeding hammering operation, to be hereinafter described. Each lever-jaw e is mounted upon the end of its own rock-shaltf, occupying a radial line on the side Vof said disk and mounted in bearings, within which it can freely move longitudinally, limited by a collar and screw, and be equally free to semirotate l'or swi nging its work i ngface e partially across the face of the die-bed toward and from the adjacent side of its-l'oi'niing-dic. and also t'or enabling said working end or l'ac to be swung'free from the die-bed and tothen drop below the peripheral line of the dic-bed. so that it may then pass freely beiicaih the table n, and without contact with the pendent studs c or with other portions ofthe machine which would otherwise occupy its circular pat li. 'llie outer end of each lever jaw is provided with a l'riction roller, ei. and with ashoe or bearingbloek, ci. below said roller.
Near the top ol'the sido plates ofthe frame A, ou their inner sides and above ilie shaft of the die-bed. there are two stationary butI adinstable segmental eiini plates, e'. bolted to t he frame and standingedgewisc and parallel wi. h the side ot' the` bed. bolli plates being shown in top view iii Fig. l). and one in side view iii dotted lines in Fig. 8. 'lhe t'ront end ol'each cani-'plate is ineliiied from its lower edge. so that as a forming-die appioiel e-l siid rainplates the slices or bearing-blocks e engage with and ride up their inclined front edges, thus lifting the lever jaws to a point slight ly above the periphery of tlie dic-bed. and lheii the friction rollers` e strike against llic llat vertical siirl'aee of the two other stationary plates, c5. which by their abutment. with the rollers` canse the working -faces e ot' said jaws to swingr into eontaet wiili the blank d, and thereby to finish the bend at the two heels ofthe horseshoe. 'lhese abutting plates ci are of sufficient length to enable them to maint-ain reliable control over the jaws, so that they may then serve as elamps while the blank is passing beneath tite hammer C. As the working-laces of these lever-jaws are much thinner than the already thickened heels ot' the lientI blank. they cannot iiiteifere with the proper operation of said hammer. Alter passing the hammer, the leverjai'vs are, on leaving the abutting plates, iineonlined, and when they and their forming dies have been carried downward in their path the horseshoe is then l'ree to drop from the bed, and as the jaws are brought around again and upward t0 In other ICO lIO
bein l'ront ot' the pendent studs c.
the front of the machine they are each engaged by a stationary finger, e, which occupies a path between the pivot of the jaw and the forming-die, so that as the die'bed further rotates. the working-face e is swung back ward clear of the bed, which leaves the jaw free to drop again, by gravity, as soon as its spindle approximates to a vertical position, as is clearly indicated in dotted lines beneath 'the table -a in Fie. 8. For accelerating the retiring movement of said rockshaft, a retraetile spring, f', may be employed, as is illustrated in Fig. 4, with one of said rock-shafts, and such springs will always be desirable if said rockshal'ts are so mounted thatgravity cannot bere lied upon. The outward throw ot' the innerend ot' each jaw will be eected independently ot' the spreading-fingere by providing each rockshalt fwith a torsional spring loosely encircling the shaft, as indicated at f2 in Fig. 4; and it is obvious that the torsional and rctractile action of both of the springs shown can be readily provided for in a single spring, and by coupling oneend of such a spring with the collar shown the latter and its screw will serve'not only to limit the longitudinal movement of the rock-shaft, but also to adjust the torsional force of the spring. l
The hammer C is located above the axle b and across the face ot' the die-bed. ln its best form it embodies a series of rollers, g, on pivots between two disks, g', mounted on a shaft, y", and provided with a pulley, ga; and it is driven at high speed, so as to rapidly deliver numerous blows or strokes upon a blank while the latter is slowly passing beneath it.
Fig. 4 illustrates the relative positions oi the hammer, the lever-jaws, and the forming-die while a blank, d, is undergoing the hammering operation.
lhe swaging jaws or dies D are here 1ocatcd at the upper front portion of the ma chine, at Athe table a, and they must always Two ot' said dies or jaws are employed, each having a detachable working-face, lt, which co-operatcs with a coincident stationary face, IL', on a metal block, which is firmly but adjustably mounted on the l'rame ot' the machine. Each swaging-die, considered asa whole, is in the l'orm of a curved level', and it is pivoted centrally, as at t', to the frame of the machine, and at its outer end it is coupled bya strong balland-socket bnr orlink, k, to the upper end ot' a lever, It', pivoted to the side ot' the l'rame, and provided below its pivot with a retractile spring, k", which normally causes the l'ace of the swaging-die to be fully retired from the face g', with which it co operates.
For operating said swaging-dies a cam, l, is provided at each side of the machine on the shaft I) for int-ermittingly engaging with and vibrating the lower end of said lever, la', and said cams are shaped substantially as shown in Fig. 2, so as to cause tburvibratious ot' t-he swagingdies during each revolution ofthe diebed, and said cams lare s0 setsupon their shalt that said swaging-dies are operated'at times.'
next preceding the approach of each formingdie, so that as each ofthe latter arrives at the table a it may be supplied with a properlyswaged blank.
In Figs. 5 and 6 a blank, d, is shown, with one of the swaging dies operating thereon.
The general operation ot' the machine will be fully apparenton reference to Fig. 13, which shows a blank, d, as prepared by me prior to use in this machine. In a similar manner Fig. 14 illustrates said blank alter it has been swaged by the dies D. In Fig. 12 the blank is shown after theiuitial bend has been developed; and Fig. 9 shows the same after the second or finishing bend has been completed. The desirability ot' a centering-gage in this variety ot` machine is the same as in others 4heretofore devised by me for securing slioeheels of uniform length, and I employ the well-known form of pendent spring-gages m, as clearly shown in Figs. 1 and 2, said springs being of equal resiliency and so slender at their lower ends as to not be in contact with the swaging-dies` and when a blank is dropped into place with its two ends abutting against said gages its middle must occupy a line coincident with the center of the approaching forming-die B'.
In view of the specific description already given of the mode of operation ot' the several parts, it is believed to bc unnecessary to describe the operation ot' such machines. considered as a whole, further than to say that the straight blanks are delivered by hand between the gages to the swaging-dies, and that the bending and hammering operations successively follow, the horseslioes being dropped below the bed l'rom each forming-die as soon as it assumes an inverted position. This l'rce delivery ofthe shoes from the dies is of con rse dependent upon the fact thattheforming-dies are consecutively reversed in position; but I can rely upon a stationary forked clearer in proper relation to the path of theforming-dies and back ol'lhe hammer, as indicated ill dotted lilies in Fig. 2, there being a wedgeshaped foot on eat-h leg ot' said clearer, which is intei-posed at one side of a horseshoe and between it and the bed, so as to lift thc shoe and leave it free to drop into a chtite o1' into a suitable receptacle. This clearer might also be relied upon to perform the functions 0l' the stationary lingers e, before described; but a clearer may generally be dispensed with ifthe l'ormingdies be reversed in position during their movements, whether on the circular bed having a horizontal axis or on the endlesschain bed hereinbefore rel'erred to.
It is now to be understood that while I prefer to employ` a machine in its` complete l'orm, and substantially as illustrati-d. l am aware that for pertorming the bending operation only, a machine embodying my invent-ion has a value equal to or greater than any other knownto me, in which case the hammer andy the swag'ing-dies can be dispensed with 0r IOO IIO
left inactive, although said swaging-dies can always be used to good advantage; also that said machine cati be profitably used purely as a hammering machine, in which case the swagingdies can be dispensed with or left inactive, and the pendent bending-studs c may or may not be employed, because it' a previously bent blank of proper form be applied to each forming-die as it reaches the table a, said bent blank will be carried forward and so engaged by the lever-jaws that they will operate as clamps and properly present the shoe to the hammer and properly control it during the hammering operation.
I have hereinbef'ore indicated that it is not new in horseshoemachines to employ a series oft'orming-dies which are always moved in one direction, and it is also to be understood that such machines have also embodied bending mechanism which operated to impart the iuitial bend, substantiallyas in my machine, by means ot' each forming-die and a pair of stationary studs or their equivalent. common to all ot' said dies. Some ot' said priormachines have also embodied lever-jaws l'or making a finishing bend, but said prior jaws have also been relied upon f'or swaying and thickening` the heels ofI a shoe while developing the tinishing bend, whereas in my machines tite lever-jaws do not swage but simply beml the blank inward atthe heels, the blank having been fully swaged at its ends before reaching the bendingl mechanism. Some ot' said prior continuously traveling;r bed machines have beendeseribed in Letters Patentas ltavitigltaxnf liters intended to opera-te upon a bent blank while moviug'along upon and with aformingdic; butin no instance known to me prior to my present in vemion has a continuouslytraveling bed provided with a series of' l'orming-dies been also provided with a pair ol lever jaws for each forming-die, whether said lever-jaws were relied upon l'or bendingalone or swaging alone or l'or performingr both of' said operations, or which, in addition to performing either or both of' said operations, further served as clamps f'or confining the bent blank in proper position during the succeeding hammering operation. ln other words, whether said prior machines have Ihad a series ot' forming-dies on circular beds provided with horizontalaxes or with vertical axes, or whether a series ot' die blocks coupled on the endless-chain principle served as the traveling bed,there has always been employed with such beds a single set of lever jaws or their equivalents for makingr an initial as well as a terminal or tinishing bend; or saidjaws were relied upon t'or making said latter bend coupled with a thickening or swaging etl'ect, so that each forming die ot' the series would successively co operate with the one pair of leverjaws. ln noneol' said prior machines are said jaws mounted upon and moved with theA bed, and hence they could not operate as clamps for so holding the blank at the die that the succeedi-ng hammering operation could be practically and efficiently performed, and also so that the heelsof' the shoe could not sp read` as would otherwise be an inevitable incident 'of hammering. It will in this connection be obvious that any devices heretofore relied upon for thickening the heels by swaging at the time of making the finishing bend, must have working-faces equal to or greater in height than the height or thickness of the hee1desired,and that if swaging-jaws were thereafter relied upon for clamping the bent and swaged blank while passing beneath a hammer, the swagingjaws would prevent the hammer from properly striking the rear portions ofthe shoe.
Having thus described my invention. I claim as new and desire to secu re by Letters Patent- 1. 1uahorseslioe-machine, the combination, t
substantially as hereinbefore describethof the series of' forwardly-moving shoe-f`orming dies, the series ot' automatic lever-jaws carried in pairs with and adjacent to each formingr die,
and a hammer whereby bent blanks or shoes carried on said forming-dies may be successively presented to said hammer andproperly clamped by Said jaws during the hammering operation.
2. In a horseshoe-machine, the combination, substantially as hereinbet'ore described. ot the circular rotative die-bed having a horizontal axis, the series of' t'orming-dieson the periphery of' said bed, the series of' automatic leverjaws carried by said bed in pairs adjacent to each die and the rotary hammer.
3. In a horseshoe-machine, the combination, substantially as hereinbelore described,ot` the series of' forwardly-moving shoe-forming dies,
the series of' automat-ie lever-jaws carried inA pairs with and adjacent to'eaeh die, a pair of' stationary pendent studs common to all ol' said dies, and a hammer whereby a straight blank is partially bent by each of said dies and said pair ot studs, a finishing,r bend developed by said automatic lever-jaws, and the bent blank then delivered to the hammeraud firmly clamped by said jaws duringr the hammeringr operation.
4. la a horseshoe-machine, the combination, substantially as hereinbef'ore describethot' the circular rotary bed on a horizontal axis, the series ot' shoe-forming dies on the periphery of said bed,the pair ot stationary pendent studs, the series ofautomatic lever-jaws taou nted ou said bed in pairs adjacent to each die, and the rotary hammer whereby a straight blank delivered to either of the dies will be imtially and finally bent, then hammered, and then release-.l from said die when inverted by the continued rotation of'said bed.
5. In a horseshoe-machine, the combination, substantially as hereinbefore described, ot a series of'torwardly-moving shoe-formingdies, a series of automatic leverjaws moving in pairs with and 'adjacent to each forming-die, a hammer, a pair ot' swaging jaws or dies, and a pair of stationary bending-studs located between said swagingjaws and the hammer, whereby a straightl blank delivered to said IOS IIO
swaging-jaws will be thickened at its ends, then initially bentby some one of the formingdies co-operating with said studs, then finally bent by the lever-jaws co-operating with said die, and then delivered to the hammer and be iirmly held by said 1everjaws during the hammering operation.
6. In a horseshoe machine, the combination, substantially as hereinbefore described, ofthe circular rotative die-bed mounted on a horizontal axis, the series of shoe-forming dies on the periphery of said bed, the stationary bending-studs, the blank-Swaging jaws in front of said studs, the series of automatic jawflevers mounted in pairs on said bed adjacent to each forming-die, and the rotary hammer.
7. Ina horseshoe-machine, the combination, substantially as hereinbefore described, of a series of forwardly-moving formingdies, a pair of pendent studs common to all of said dies, and cooperating therewith for initially bending a blank, and a series of automatic jaw-levers moving in pairs with each of said forming-dies and cooperating therewith in completing the bend in a blank.
8. In a horseshoe-machine, the combination, substantially as hereinbefore described, of the circular rotary bed mounted upon a horizontal axis, a series of shoeforming dies on the periphery of said bed, the pair of stationary studs co-operating with all of said dies for making initial bends in blanks, and the series ot' automatic lever-jaws mounted on said bed in pairs adjacent to each forming-die and cooperating therewith for making the finishing bend in each blank carried by said formingdie.
9. In a horseshoe-machine, the combination, substantially as hereinbefore described, of a series of forwardly-moving forming-dies, a pair of swaging-dies for thickening the ends of straight blanks, a pair of stationary studs at the rear ot' said swaging-dies for co-oper ating with all ot' said forming-dies in making initial bends in blanks, and a series of automatic lever-jaws moving in pairs with and adjacent to each forming-die for making the nishing bend in each blank.
l0. In a horseshoe-machine, the combination, substantially as hereinbefore described, of the circular rotary bed on a horizontal axis, the series of shoe-forming dies on the dies, and stationary fingers for thereafter engaging with the inner ends of said jaws for throwing them away from their forming-die and permitting them to retire from their working positions.
l2. In a horseshoe-machine, the-combination, substantially as hereinbefore described, of the rotary bed on a horizontal aXis, the series of shoe-forming dies on the periphery of said bed, the series of lever-jaws mounted in pairs on said bed adjacent to each formingdie, the longitudinally reciprocating rockshafts on which said jaws are mounted, the l stationary cam-plates for lifting said jaws and their rock shafts, -the stationary abuttingplates for swinging said lever-jaws toward their dies, and the stationary iingers for engaging with the inner ends of said jaws for throwing them away from their forming-dies and permitting them to drop on arriving ata substantially upright and vertical position during the rotation of the bed.
18. In a horseshoe-machine, the combination, with a traveling shoe-forming die, of the pair of vertically reciprocating lever -jaws moving therewith and mounted respectively o n sliding rock-shafts, a stationary cam-plate for lifting each jaw and its shaft, stationary abutting-plates for swinging the inner ends ot'- said jaws toward the die, and stationary tingers for thereafter throwing the inner ends of lsaid jaws outwardly and permitting them to drop below the die.
CHARLES H. PERKINS.
G. LoUIs BOWEM, CHARLES R. STARK.