US1099334A

US1099334A - Combined rounding and channeling machine.

Info

Publication number: US1099334A
Application number: US24053205A
Authority: US
Inventors: Harrie A Ballard
Original assignee: BOYLSTON Manufacturing CO
Current assignee: BOYLSTON MANUFACTURING Co
Priority date: 1905-01-11
Filing date: 1905-01-11
Publication date: 1914-06-09
Anticipated expiration: 1931-06-09

Description

H. A. BALLARD.

COMBINED ROUNDING 'AND GHANNELING MACHINE.

APPLIOATION FILED JAN. 11, 1905. 1,099,334. Patented June 9, 1914,

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*am has COLUMBIA PLANGGIAPH C0.. WASHINGTCN. D.

l A y H. A. BALLARD. COMBINED BOUNDING AND OHANNELING MACHINE. APPLICATION FILED JAN. 11, Ions.

1,099.334. lPatented June 9,1914,

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V11. A.l BALLARD. COMBINED BOUNDING AND OHANNELING MACHINE. APPLICATIGN-FILBD JAN. 11. 1905.

15099334. n Patented June 9, 1914.

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HARRIE A. BALLARD, OFASI-ILAND, MASSACHUSETTS,ASSIGNOR, BY MESNE ASSIGN- MENTS, TO THE BOYLSTON MANUFACTURING- COMPANY, OF BOSTON, MASSACHU- i SETTS, A CORPORATION OIE' NEW JERSEY.

COMBINED ROUNDING AND CIIANNELING MACHINE.

To all whom 'it may conce/ra Be it known that I, Hannie A.. BALLARD, of Ashland, in the county of Middlesex and State of Massachusetts, have invented certain new and useful Improvements in Combined Rounding and Channeling Machines, of which the following is a specification.

This invention relates to` that class of shoe machines known as rough rounders, which are employed after the outersole has been attached to a shoe, but before it has been sewed thereto, to trim the surplus leather from the edge of the sole and to cut a channel in the newly-outlined sole to receive the stitches of the final sewing operation.

The principal features of the invention are a novel work-feeding mechanism and a novel sole-rounding knife which cooperate :in producing an extremely `efficient combination of devices for the purpose.

The sole-trimming knife in the present invention is chiselshaped and in addition to a chisel-like motion it receives a lateral edgewise motion. These two motions combined cause the knife to describe a substantially circular bodily slicing motion. The knife is so timed that it moves with and operates on the work during the feeding thereof.

For the purpose of feeding the work, I employ a pair of coacting surface-engaging jaws which are caused to openand close by the action of the rounding-knife, and which receive a positive feeding motion from another source. Both of said jaws are carried by one and the same member, hence a simultaneous feeding movement `of both is insured. One of said jaws is adapted to cooperate with the knife by resisting the pressure thereof during the cutting of the sole. The jaw therefore constitutes a cuttingblock, but unlike the majority of cutting blocks which have a surface of suitable material against which the knife is forced, the jaw is cut away so that the cutting edge of the knife may project beyond `the plane where the jaw resists the work. This feature insures a smoother, cleaner cut than heretofore, and obviates much wear on the knife.

Another feature of the invention is a work-guide or gage which may be manually moved during the operation of the machine to vary the width of the sole extension left Specification of Letters Patent.

Application filed January 11, 1905.

Patented June 9, 1914.-.

serial No. 240,532.

by the roundingeknife. Heretofore, in rounding a sole which 1s trimmed close at the shank, and which has a wlde extension around the'forepart, it has been necessary to employ two gages for the purpose.

Other features of the invention are illustrated on the drawings, described in the following specification, and pointed out in the claims.

Of the accompanying drawings :"Figure 1 is a right side elevation of a roughrounder constructed in accordance with the present invention. Fig. 2 is a front elevation of the same. Fie. 3 is a top plan View of the forward feet ing jaw and actuating mechanism in closed position, as shown by Fig. 1 in side elevation. Fig. 1 is a seetion on the line 4 4 of Fig. 1. Fig. 5 shows the same parts in open position. Fig. 6 shows in elevation the feeding and trim.- ming devices in open position. Fig. 7 is a left side elevation of a portion of the head and controlling levers. Fig. 8 is a front elevation of each of the work-feedingr jaws.

On the drawings, the same reference characters indicate the saine parts, wherever they occur.

Referring first to Fig. l, the various operative elements are combined in a head 10, suitably mounted upon a standard 11, of

which only the upper end appears. A

clamping stud 12` upon which the head is suitably pivoted serves to hold it at any desired angle at which it may be set. Near the rear of the head .is journaled an upright shaft 13 having a pulley 111 driven by a belt 15 connected to a suitable source of power. An eccentric 16, affixed to the shaft 13, actuates a lever 17 whose forward end has a suitable bearing upon a portion of the head A swiveled block or cross-head 1S, carried by the lever 17 and which is adapted to reciprocate in a slot 19 formed in the head, serves as a movable pivot upon which the lever is fulcrumed. 20 is the trimmingknife, aiixcd in any suitable manner to the forward end of the lever 17. By reason of the construction by which the lever 17 is mounted, rotation of the shaft 13 causes the knife 2O to describe an elliptical motion, of which a development is shown by dotted lines in Fig. 5.

It will be noticed that the knife, in addi tion to being beveled at 21, in the same manthrough Iin penetrating the sole.

ner as a chisel, is beveled at each side edge 22, thereby causing the knife to'cut inthree directions.

WMM-rest 8upp0rt.-The supportr for the work-rest, against which the shoe a is adapted to be held during the operation, is indicated at 25, under the knife 20. The said support has vertical dovetails 26 which occupy dovetailed guides 27 formed on a hori? zontally movable carriage30. The carriage 30 is movably supported on the head 10 by dovetailed guides 31 formed thereon, andis normally held toward` the front of lthe head Vby a spring 32.

Y O/zrmneZz'ng-/cm'fe-428 is a screw-threaded post carried .by the workfrest support vand adjustably held thereinv by a thumb--nut 29. The post 28 is provided with a spline or `key 49 which prevents it from turningin the rest 25, and with rollers 33 upon which ithe shoe a is adapted to roll as it advances; during they operationv hereinafter described.

.The upper end of the post is also provided with a rigid clamp 34, inl which is secured .stationary channel-knife 35, directly beneath and close to the rounding-knife 20.

The post and thereby the upper work-rest 4or roll 33 and the channeling knife are adjusted by rotating the nut 29 and are vertically movable in a manner hereinafter described. y

Feeding mccliam'sms.-The work n:feeding mechanism comprises two feeding jaws of which the forward jaw 40 is rigidly secured to the forward end of an eccentric lever 37, mounted above and parallel to the' eccentric lever-17. :The lower edge of .said jaw extends slightly below the rounding. knife and is adapted to engage the welt or extension 7) of the sole: ZJ. .This edge, however, is cut ,A away in the centerl to permit the @dile 21 of l.thekrounding knife to`r project there- The jaw therefore .acts as a cutting-block tol resist the pressure of the` knife without coming into contact therewith. The` rear. feedingjaw, indicated at; 41, is formed at its upper end to straddle the eccentric lever 37 to whichit is pivoted by a stud 42. .The rear end of the lever 37 embraces and is actuated by an eccentric 43 aiiixed to a vertical Vstudshaft 44 mounted yin bearingsinthehe'ad 10. Rotation isimparted to the shaft. 44 by the shaft. 13 through spur-gears 45 45, which,

V I rotating. in .opposite directions, cause-.the

Alevers

17 and 37 to move oppositely yfrom front to rear, buttogethen from side to side,

`as hereinafter explained.

38 is an adjustable cross-bar, providing a fulcrum .for the' lever 37 and supported upon .suitablevprojections. forming part of;.thc

head. 10. Saidcross-banhas formed lin its ends slots 39 which' are occupied by bolts 46. The Vbolts are screw-threadeddnto saidsupporting .projections and .serreto clamp the ment of the cross-bar 38 and consequently that of the fulcrum or block 47 relatively `to the lever produces more or-less lateral feeding motion ofthe jaws-40 and 41.

As previously stated,` the

levers

17 and, 37 move. longitudinally in oppositeV directions,

and itv willl now-be. explainedy how thejaws 40 and. 41 are :opened .and` closedf.thereby, although both jaws are .carried by the lever 37.

;At a suitable point .betweenthe ends of the rear. jaw 41 arey pivotally connected .the forwardly-extending reaches ofy a sliding member 51, which loosely straddles and rests Vupon the lever 117. .The said reaches extend along thesides of the lever; 17I andare .connected at their 'rear ends by a bridge..;52 having bearingupon the lever. Y vA.spr ing 53 connected to. thef leverl and. the' bridge. 52

i servesto hold .the member ,51- normally .for-

ward. The member lfftherefore .yieldingly presses the rear' jaw 41 towardthe .jam'7.40. An overhangingmember. 54` on lthe lever 17 prevents the rear end of the, memoerl from rising, but allows it limited freeg-lateral movement in .any .direction for a purposeV hereinafter explained. l

The rounding-knife, A,mechanism and. the feeding-jaw mechanism v.having beenv described indvidually, I `willf now. explain their. combined operation .beforelgoing ,into

further detailv ofthe machine.

Opemtomff-Referringto Eig. 6',.it,Will..b-e seen that the jaws -are open and'fftheroundingknife .in vits rearwardposition. ThisJnay be yconsidered the. starting, position. ofthe machine, the starting and ,stopping of` which may; be controlleddn. any suitablemanner, .(not shown), such, as by, a treadle-operated clutch-pulleygfor .driving thedogelt, r15. In thisj position, the"forwardposition..of` the member 51 is limited by .stopson the lever. 17. .As previouslyv stated, thefree. lateral movement off Vthe .member `51 .is .limited,-.the,1forward movement, as `just stated, by rthe stops 55, the rearward ,movement by `the, .member 54,` and ,the sidewise movement by the reaches .doverhanging .the sideedges j j forwardly, carries .fwifth j. 4it gthe ,l .roundingrocas-34 knife 20, the member 51, and the lower end of the rear feeding jaw 41, which it may be here stated, is bifurcated in order that it may straddle the trimming-knife, as shown, and not interfere with the `movement. thereof. The lever 37 in moving backwardly carries with it the forward feeding-jaw 40 and the uppei` end of the jaw 41. The lower ends of the jaws are thus moved toward each other, the rear jaw, as previously described, being `held by spring tension. The forward and backward motion of the member 51 is produced by that of the lever 17 but inasmuch as the sidewise motion of said member is produced by the lever 37, the relative motions of the lever 17 and the member 51 vary both in length and speed. The variation in movement ust described is made possible by the aforesaid limited free lateral movement in any direction of the member 51. It may be here stated that the forward and backward motion of the rounding-knife is greater than the sidewise motion thereof, but that the sidewise motion of the feeding-jaws is greater than the forward and backward motion thereof. This is `for the purpose of giving the rounding-knife a maximum chisel-like motion, and for giving the jaws a maximum feeding motion.

Ashoe a having avsole b to be rounded and channeled is presented to the machine, as shown in Fig. 1, although the parts of the machine should be in the position shown by Fig. 6. While the rounding knife is penetrating the extension b of the sole b, the feeding jaws clamp the extension. The initial stress of the rounding knife is sustained by the gage 56, but the jaw 40 in moving to the rear takes such stress from the gage and thereafter feeds the work in conjunction with the jaw 41. The jaw 40 engages the extension before the forward end of the knife emerges from the forward side of the sole extension. The rounding knife moves laterally while the jaws are feeding the work; but inasmuch as the lateral movement of the jaws exceeds that of the knife, the work is caused to gain on the knife, causing one of the longitudinal edges 22 of the knife to elongate the cut. The longitudinal movement of the knife continues during the feeding operation, and a drawing cut is thus performed by the longitudinal edge of the knife. As the work is advanced on the rollers 33, the channeling knife 35 enters the sole b at a suitable distance from the incision made by the rounding-knife. 180 degrees continued rotation of the shaft 13, or the remaining 90 degrees of the irst revolution, and the lirst 90 degrees of the next revolution cause the rounding-knife to recede from the work and move to the right for the next incision. In receding, the stops 55 on the lever 17 engage the bridge `52 of the member 51, thus causing the rear jaw to be disengaged from the sole. The lever 37 at the same time disengages the forward aw from the work and moves both jaws to the right, with the rounding-knife for a fresh grip upon the work. The shoe is, of course, held and guided in the usual manner by the opcrater, so that between the unclamping and clamping of the feeding-jaws, the shoe is manually held stationary.

Gaf/e mcclwflrsmtr-The means for gaging the work so as to leave more or less extension to the solo comprises a movable workgage 56 mounted in vertical guides 57 on the head. The lower edge of said gage is adapted to set into the angle formed by the seam of the upper and the welt, but is so formed that it cannot enter the crease and become wedged between the upper and welt. As shown by Fig. 1, one surface of the gage bears against the extension of the outer sole, and the other work-engaging surface is substantially at right angles to the extension of the sole and presses the upper against the edge surface of the insole. The section of the shoe as shown by Fig. 1 is taken at the ball portion where the upper extends away from the outer sole at a right angle; but at other points where the upper and sole extension converge at an acute angle, such as at the shank, the gage is prevented from entering the crease of the inseam by its convex surface which lies against the shoe upper. As a result of this convex formation of the gage, the point of contact between the upper and the contiguous surface of the gage moves away from the sole extension as the angle of the upper and sole extension grows more acute. The

gage will not, therefore, enter the crease of the inseam at any part of the shoe. The shoe being held against the gage 5G as it progresses, is given an extension of greater or less width, according to the distance at which the lower edge of the gage sets below the rounding-knife.

A rack 5S of gear teeth is formed on the upper end of the gage, and is engaged by a gear-segment 59 ailixed to a shaft (50 extending through the upper portion of the head 10. One end of said shaft projects through a bracket (3l. forming a part of the head andv has en its projecting end a bell-crank lever G2 allixed thereto. The arm 63 of said lever is pivoted to a rod G4 which is adapted t0 be moved vertically by a treadle (not shown). Upward movement of the rod (34, by reason of this construction, lowers the gage 56, thus moving the'shoe farther below the rounding-knife, and leaving a wider extension b to the sole b. This can be accomplished while the machine is in operation to produce an extension of varied width, as the style of some shoes demands. The movement of the work-gage is limited by thumb-screws 65 G5 threaded intothe bracket G1 and adapted to against each other and thus becoming worn.

-be'engaged by an-ear 66 on the arm 63. A

3 rear face of the dovetailed portion 26 of the work-rest 25. It is therefore evident that, by means of these connections, the workrestand channeling-knife are slightly'raised wehen. the work-gage is lowered, and viceversa. By reason of this construction, in rounding the shank of the sole, where the extension thereof is narrowest, the channel cut by the knife 35 is foimed at a considerable distance from the edge cut by the rounding-knife. This increased distance between the edge and the channel, which subsequently receives the Vstitches for securing the sole, places the stitches out of danger of being encountered by the trimming or finishing cutter which is usually employed to remove'the sharp edges of the shank. l For convenience in positioning` a shoe to -be rounded, the work-rest is provided with means'whereby'it may be retracted either by handor ti'cadle. Said means comprises ,ai yoke 74 pivoted at 75 75 to the head lO and underhanging the carriage 30. Said yoke is provided with slots 76 through which the shaft extends, and a handle 77.

f Connected to said handle is a chain 78 which extends over an idler 79 and thence to a suitable treadle, not shown. fore be seen that the carriage 30, carrying with Vit the work-rest,rmay be retracted by swinging the yoke 74; backwardly upon the pivots 7 5 75, either by means of the handle 77 or kthe treadle above mentioned.

The member 5l is'provided with a yoke 8O which is adapted to impingeagainst a buffer 8l of leather or other suitable maf terial on that portion of the head in which ythe lever 17 is fulcrumed. This occurs, however, onlyV when the machine is being driven without a sole b between the jaws 40 4:1, -to preventl the jaws from impinging` Having thus explained the nature of the invention, and described a way of construct-` ing and using the same, although without attemptingto set forth all of the forms in A'which yit may bemade, `orall-of the modes of-its use, I declare .that what I claim is:

Il. A=macliine of the character described,

comprising aframe, a work gage, a round-y ing knife, a carriage slidably mounted on ksaid frame movable towardand from :the

workgage, 'a' work'irest support slidably mountedV on said carriage rand movable thereony toward and from said rounding knife,.means forimanually moving said car-i It may there-4 eoinprising a; pair of jaws for lintermit--v Vriage, means for manually moving said Work -rest support,` a post on-saidsupport and extendingthereabove, a roll on said post to cngage the face of the shoe sole, a channeling knife supported by said post at theend of the roller, and means for vertically a'djustinglsaid postl'and thereby said channeling knife and said roll.

2. A machine of the character 4described comprising means'for feeding thework step4 by step, sole-rounding means adaptedtoinoise the workand laterally movable relatively to the work-feeding means, and instrumentalities for causing said sole-rounding means to incise the'wo'rk during the feeding, thereof by a lateral 'movement independent of the lateral movement of the work-feeding means but in the same direction of` movement. f A

Y3. A machine ofthe character described comprising means for feeding the work step Y by step, a roundingknifehaving a continuous cutting edge adaptedto penetrate the A work, and means for causing said round-ing knife to penetrate and move in the same dif*` rection as the work during vthe vfeeding thereof, but at a yslower ratefof Vspeed than the work.

el. In a machine` ofthe character described, a work gage, laterally movable j awsfor feeding the work, a laterally movable rounding knife having cutting end and side edges, and

instrumentalities for impartingindependent intermittent `lateral movements to said knife and jaws toincise the work as it vis being fed. I

5. In a machine of the character' described,

va work gage, Va work rest, a 'knife movable toward and from and laterally-with respect Y to the work rest, said knife having end and Y' side cutting edges, means for feeding-the werk and means for imparting the described movement to the knife.

6.k ln a machine of the character described, a work gage, a work rest, a knife movable toward and from and laterally with respect to the work rest, jaws for feeding the work, means for laterally feeding said jaws, and meansffor imparting said described movelment vto -said knifeto cause it tol move simultaneously with the jaws in the same direction.

f7. yA machine of the character-described, comprising a rounding knife, means for re ciprocating saidknife across and also longitudinally of the feed, a normally station.A ary gage for engaging the welt of the shoe, a-work rest against` which the' face of the sole may be engaged, and means forfeeding the shoe comprising co-acting jaws one engaging the w'eltand ythe other: the sole, a l vibratorysupport for said jaws and means for actuating said jaws to clamp 'the work and vibrating said supportfto feed the work.` 8. A machine of tliecharacter described,

tently clam ing the work, one of said jaws being mova le relatively to the other, and a pair of eccentrics one of which reciprocates the jaws in unison to feed the work, and both of which open and close the jaws.

9. A machine of the character described, comprising a pair of eccentrics, and a pair of jaws of which one is movable relatively to the other, a vibrator-y support for said jaws, so arranged as to be vibrated by one of said eccentrics to cause the jaws to feed the work, and means adapted te be reciprocated by the other eccentric to close the movable aw.

10. A machine of the character described, comprising a rounding knife, a gage adapted to engage the work between the welt and the upper, a sole support to engage the outer face or side of the sole, co-acting feeding jaws for engaging the welt side and the outer side of the sole, a vibratory support for both jaws, and eccentric mechanism for moving said support and thereby said jaws bodily with relation to the gage and sole support to feed the work, and for opening and closing said jaws.

11. A machine of the character described, comprising a rounding knife, a movable support. for said rounding knife, means for actuating said support,` a pair of movable jaws for clampingand feeding the work, a vibratory support for both said jaws, means for vibrating said jaw support to feed the work, and means connecting one of said jaws and said knife support whereby said jaws are closed and opened.

12. A machine of the character described, comprising a pair of co-acting work-feeding jaws, a supporting member to which` one of said jaws is rigidly attached, and to which the other `jaw is hinged inzjuxta-relation to said rigid jaw, means for actuating said jaw-supporting member to` impart to said jaws an approximately circular bodily movement, and means for causing said hinged jaw to swing toward and fromsaid rigid jaw to clamp the work.

13. A machine of the character described, comprising a rounding knife, a member for supporting said knife, means for actuating said member to cause the knife to operate upon the work,` a pair of co-acting jaws adapted to clamp between them the work, an oscillatory member for supporting both said jaws, means for actuating said jawsupporting member te feed the work, and means actuated by said knife-supporting member for closing and opening said jaws to clamp the work.

14:. A machine of the character described comprising a movable support, a pair `of cooperative feeding members mounted upon said support, means for moving said support to cause said feeding` members to describe an endless path of movement, and

means for moving one of said feeding members toward and from the other to clamp and release the work.

15. In a machine of the character described, a rounding knife, a gage arranged to brace the sole extension to the action of said knife, and means arranged to press the sole extension from said gage toward said knife while the knife is passing through said extension, said means and knife being` movable to feed the work.

1G. 1n a machine of the character described, a rounding knife, a gage arranged to brace the sole extension to the action of said knife, two cooperative clamping members arranged to engage said extension, and

means arranged to move said clamping` members to clamp said extension and feed the work, one of said clamping members being arranged to take the stress of said rounding knife from said gage.

17. Amachine of the character described, comprising a rounding knife, a channeling knife, a carriage for the channeling knife movable toward and from the rounding to engage the work throughout its length to position it with relation to the two knives, a rack on said gage, a rack on said carriage, toothed segments for engaging` said racks, and operative connections between said segments, whereby when one is rocked the other will be rocked likewise with the result that the gage and the channeling knife will be adjusted simultaneously with respect to the rounding knife.

18.` A machine of the cha `acter described, comprising a rounding knife operatingin a fixed plane, a work rest movable with relation to said rounding knife, a channeling knife mounted upon said work rest, a single movable gage adapted to engage the work to position it with relation to said rounding knife and said` channeling knife, means whereby said gage may be manually moved with relation to said rounding knife and said channeling knife, means controlled and actuated by said gage-moving means for moving said work rest with relation to said rounding knife, whereby when the extension of the sole is reduced in width the channel is formed at a relatively greater distance from the edge thereof, and means for independently adjusting said channeling knife relatively to said gage and rounding knife.

19. A combined sole-rounding and chani neling machine comprising a rounding j knife, means for actuating said knife, a channeling knife, an inseam gage in the line of the rounding knife, said gage beingarranged to be engaged continuously by the work, and to vary the width of the sole extension, and manually operative means for relatively adjusting said gage and said knife, a normally stationary gage adapted knives .whereby` when the extension on the sole is reduced in width as alongthe shank,l

the channel is formed at a relatively greater distance from the edge of the extension.

20. In a machine, of the character described,. a rounding knife, a channeling knife, a work gage arranged to engage the work throughout its length, and means for simultaneously adjusting 'said channeling knife and work gage-with respect to the rounding knife so that,when the extension of they sole is reduced inwidth,the channel is formed .at .a `greater distance from the edge thereof, saidineans comprising a positive connection between said gage and-said channeling knife.

2l.. A machine of the character described, having in combination a ltrimming knife,- means engaging opposite'faces `of `the sole for feeding a shoe, an adjustable 1 gage to guide and adjusttheshoe with thepart to be trimmedin positionY to be acted-upon by' theknife,.and means for vibratingfthe knife,l

during .the feeding action of :sai-d feeding means, said vibrating of the: knife being transverse to thev line of feedv and in the di-v rection of feed. f

22. Amachine ofthe character described,

comprising .work-feeding. means, a flat rounding knife, means for `vibrating the knife during thefeeding` action of said `feedingmeans to cause the knife 1to -move transverselyto thelineof feed and to change its n angle with relation 4tothe work, and a cutting abutment movable with the vknifevin the line of the feed.

23.. A linachineof Ythel character set forth comprising a work-guide and a sole-support,

both'iiXed against movement in the direction of feed, in combination with.` a trimming knife,means for moving said knifeboth transversely and longitudinally of the direction of feed, a clamp feeding mechanismv forth, a main frame, a work guidefeeding. mechanism, a rounding knife, a spring-v pressed carriage mounted to Slidein a guideway` on the mainframe and movable back and forth relatively to thework gage but fixed in the direction ofrfeed, a slide mounted in guideways in said carriage to move up and down toward and from thereunding knife, ka channelingknife ony said slide,I means for independently adjusting said channeling knifeV on said slide toward and rfrom said rounding knife,Y manually operated means for moving said carriage; and slide backwardly from said Work gage, and manually operated means-for moving said slide downwardly away from said knifei 25. In a machine of the character set forth, a wo-rk guide, work-feeding mechanismcomprising a pivoted member, a jaw onl said member, means for oscillating said,

member about its pivot to move said jaw longitudinally of the direction of feed, and a second jaw supported by said member and movable toward and frein thev irst-men- 1 26. In a lmachine `of vthe character de`- scribed, a rounding knife, a work guide, and

work-feeding mechanism comprising l:opposing-clamping jawsa pivoted lever, one of said jaws being rigidly securedto saidelever and the other-beingpivotedl thereto, and eccentric mechanism :for oscillating said k lever about its pivot and actuatingsaid pivoted jaw.

27. In a machinev of the character--,de scribed, a rounding knife, a gage-'arranged to brace the sole `extension against the stress of said knife,and movable means arranged to intermittently engage: the -sole extension f gage/"and, to

to take said stress from said feed the work.

28. A machine of the character described comprising a rounding knife, a gage ary ranged toact uponthegsoleiextension and upper, a feeding member arranged to enf,

gagethe tread surfaceof the sole,fmeans for causing said feeding memberto'act against the sole-` to press the extension, thereof against said gage, and a feeding member arranged to engagethe sole 'extension'to cooperate` with the first-named Afeeding member to clamp lsaid extension, said feeding members being movable laterally to feed.

29. In a machine ofy thecharacten described, Ia longitudinally and laterally movable `rounding, knife, af `gage larranged. to brace the sole extension against the stress of said knife, a member arranged to engage iio the sole extension adjacent said knife, and means arranged to cause said meniberto traverse an endless curvilinear path togtake the stress of said knifegfrom said gageand feed the work. i i f 30.,In a machineof the character .described, two coacting clamping members arranged to clamp the work, means forming Aa hinge connection between said members, and

means arranged to cause saidA memberstoV traverse endless curvilinearpaths to clamp and feed thelwork.

31. In a machine of the character de N scribed, two coacting clamping members arranged to clamp the Work, means forming a hinge connection between said members,and means arranged to cause one of said members to traverse an elliptic pathand to cause the other one of said members to traverse an endless path, to clamp and feed the Work.

32. A machine of the character described comprising coperative members movable toward each other to clamp the sole extension and movable laterally to feed the shoe, a rounding knife arranged to move substantially at right angles to the plane of the sole to out and to move laterally With said clamping` members, and means for operating said clamping members and knife to give the clamping members more feedingmovement than clamping movement and to give said knife more endwise cutting movement than lateral movement.

33. A machine of the character described comprising coperative members movable toward each other to clamp the sole extension and movable laterally to feed the shoe,

a roundinoknife arranged to move substantially at right angles to the plane of the sole to out and to move laterally with said clamping members, and means for causing lateral movement of said clamping members and lateral movement of said knife While the latter is in the Work, said means being arranged to cause said lateral movements to be unequal.

34. In a machine of the character described,` a rounding knife having a longitudinal cutting edge, means arranged to reciprocate said knife longitudinally, and means arranged to feed the Work relatively to said knife While said knife is moving end- Wise, to cause said longitudinal edge to perform a drawing cutting action.

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

HARRIE A. BALLARD.

Witnesses:

C. C. S'rnoI-Inn, M. B. MAY.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C.