USRE13253E - Heel-breasting machine - Google Patents

Description

E. A. WEBSTER.

HEEL BBEASTING MACHINE.

APPLICATION FILED APB. 21 1911.

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Reissued May 30, 1911.

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E. A. WEBSTER. HEIIL BREASTING MACHINE.

APPLICATION FILED Ai'n. 41,1911.

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ReissuedMa 30 1911.

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E. A. WEBSTER. HEEL BREASTING MACHINE.

APPLICATION FILED APR. 21; 1911'. BHEETfi-SHEET 3.

Reissued May 30, 1911.

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APPLIUATION FILED APR. 21, 1911.

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UNITED STATES PATENT OFFICE.

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CHANNELING MACHINE 00. OF KAVERHILL, MASSACHUSETTS,

ASSACHUSETTS, ASSIGNOR 'IO HAVERHILL A CORPORATION To all whom it may concern:

Be it known that I, EDWIN A. WEBSTER, of Groveland, count of Essex, State of Massachusetts, have invented an Improvement in Heel-Brea'stin Machines, of which the following is a specification.

In heelbreasting machines in which astationary breasting knife is employed, or in which the knife is onl moved transversely of its edge or vertically downward, to erform the breasting operation, much ifliculty is occasioned, particularly in breasting high heels, on account of the fact that the securely holding knife will almost invariably be deflected, or yield, to an extent, varying with the conditions, so that the breasted surface will not be strai ht, but will have a wa'vy appear ance. his is objectionable, as additional labor infinishin is necessitatedto straighten the surface. his diflicult ma be entirely avoided by causing t e knife to vibrate or reciprocate lon itudinally of its edge, so that 1t makes a frawing cut as the heel is moved against it, but it is frequentl necessary to breast different heels, with dif ferently curved knives, and the difliculty of rovidmg a machine with which blades of ifierent curvatures may be conveniently em loyed has practically recluded the enera use of a machine of t is type. The ongitudinal movement of the breasting knife 1n such a machine has, tendency to cause a lateral tipping or corresponding vibration of the shoe, so that,- with prior devices, the beneficial effect of the vi rating movement has been practically nullified.

The objects of my invention are, to rovide a heel-breasting machine having alongitudinally' vibrati knife, with means wherebyknives of 51 the different curvatures .which may be required, may 'be used in the same m'ac inc and may be readily substituted one for another.

A' further object of my invention is to provide means in connection therewith for the heel of the shoe against lateral, or tippln movement while on the I 2 j- 'ack and V to-all sizes of heels.

e ag V by'the vibrating breastsiil dmeans to be readily adaptable ing knife,

I accomplish these objects by the means shown in t e accompan drawing. Figure 1 is a front elevation ofa breastmg .movable in a horizontal plane. moreover, a strong Specification bf Reissued Letters Patent. Reissued May 30, 1911.

Original 1V0. 881,506, dated January 10, 1911, Serial No: 558,977. Application for p 1911. SeriaINo. 623,133.

reissue filed. April 21,

machine provided with my invention, in

which, Flg. 2 is a side elevation thereof, Fig.

3 is a detail sectional view at the line 3-3 of Fig. 1, Fig. 4is a plan view of the knife holder, Fig. 5 is a front view thereof, Fig. 6 is a sectional view on the line 66 of Fig. 5, Fig; 7 is a detail front view of the heel hold' g device and, Fig. 8 is a detail front elevation 'of a modified form of heel holder, Fig. 9 is a plan view thereof and, Fig. 10 is a sectional view, at the line 1010 of Fig. 8-, showing the connection with the adjacent portion of the machine.

As shown in the drawings, the base a, is provided with a main driving shaft 6, which breasting is adapted to drive a main operating shaft a, vertically. mounted in the head a, by means of suitable power transmitted by belts and pulleys.

The head a, is provided with horizontal guideways a opening to the front side of.

the machine, and a knife-block-holder d is removabl .mounted in said 'guideways, suitable means for locking said holder there in-bein provided, as screws, .10, having portions 0 the heads thereof cut away at one side. Said holder (1 is provided with a pair of guidewa brackets 03 on its under side,

and a kni e-block e'is slidably supported on said brackets all, so that it is universally Said block 6 is provided with a pair of depending, knife-supporting arms e, havingvertically disposed faces knife I is adapted to be clamped of clamping plates 6 and an a j stop screw 9 1s provided in the main part of the block 6, which is adapted to bear against the upper end of the breasting knife f', so that it will hold the same against upward movement in the block. The holder d is provided with a pair of curved guiding slots. (Z and a pair of friction rolls h are rotatably said rolls being adapted to be moved freely in said slots (P, so that when the block 6 is moved longitudinally it will be moved in a curved path corresponding to the curvature of the slots (1 The knife f is provided with a concave cutting edge and is longitudinally concaved to correspond with the curvature of the slots 03. The knife block e is provided with a pair of vertically disposedlugs e on its means ustable against which the breasting mounted on the knife block a,

of vertically depending rods 7:, which are secured on the under side of the head a short distance in the rear of, and at opposite sides of the breasting knife, and a rod 1, is also mounted in the head in av position parallel to said rods 70, and is adapted to extend through a rearwardly extending bracket j, on the rear side of the carrier 7'.

' A spring, m, "is mounted on therod I, be-

tween the head and the upper end of the bracket j, and a stop nut a, is mounted on the lower end of said rod Z, said nut acting to support the carrier and limit the downward movement thereof. The carrier {1, is provided with a longitudinal slot 9'", w ich extends therethrough and in which a pair of dogs 0 are slidably mounted, and an adjusting screw, p, having a swivel connection with a bracket g on the carrier, extends through said dogs 0 and is'providcd with right and left screw threads, which respectively engage the same, so that when said screw isturned in one direction said dogs will be simultaneously moved toward each other, and when turned in the opposite direction, will be simultaneously moved away from each other.

Each block 0 is provided with a depending finger 0, having heel-engaging faces 0 at their adjacent sides, which are arranged to diverge to a slight extent as they extend downwardly. A ack r is mounted on a vertically movable table r, which is adapted' to be lifted by a suitable treadle mechanism connected thereto, as shown in Fig. 2, so that when said treadle is depressed, said jack will be lifted toward the bre'asting' knife, an adjustable stop 1 being provided to limit the upward movement of the jack,

\ such movement of the jack toward and from the breasting-knife being herein referred to as transversely of the knife edge.

In operation, the breasting knife f, is

- caused to reciprocate rapidly longitudinally of its edge. The shoe is placed on the jack 1', and, asit is lifted, the fingers 0" will engage the sides of the heel, at its top, so that it will become firmly wedged between the diverging faces thereof. As the jack is lifted further, the breast portion of the heel will be brought into engagement with the knife, so that the heel will be breasted in a manner which will be obvious, an d, as the jack is lifted to perform this operation, the carrier will be lifted thereby, so that the relative positions of the shoe and the holder will be 5 maintained and the heel will be firmly held against lateral movement during the entire breasting operation, a firm engagement between the holder and the heel being maintained b the spring m. When the operation is nished and the jack lowered, the carrier j will also be lowered against the stop n. 1

In case it is desired to employ a knife having a different curvature, the holder dwill be unlockedand withdrawn from the guidewa s in whichit is held, and another block 0 similar construction, but having a cam path curved on a different radius, and a different knife block provided with a breasting knife curved on said radius, will be inserted, the block 5, being readily ,disengaged from the block 6, as holder (1 is .withdrawn, and the corresponding parts being rengaged when inserted.

In Figs. 8, 9 and 10 I show a modified form of heel holding means which is especially desirable when heels having concave sides, so that the top lift is of greater width than some of the intermediate lifts, are to be breasted. In this form of my invention, a frame s is rlgidly secured, at a suitable elevation, to the under side of the head by suitable means, as by adjustably mounting it on the guide rods is, before described. Said frame 8 is provided with a pair of horizontal slots s'in which a pair of blocks t are slidably mounted. A screw p,'similar to the screw p, already described, is connected to said'blocks t, by meansrof right and left threads, and is held from longitudinal move-- ment with relation to the frame a by means of a swivel connection therewith, providedby a bracket a mounted thereon. A pair of right-angular shaped, or bell-crank levers u are respectively mounted on pivots t securedlin blocks 6, with the arms a thereof depending from said pivots t, and the arms u thereof extending toward each other, and overlapping, asshown. the arms 11. are each provided with longitudinal slots u which extend from the ends of saidarms toward the pivot thereof for a suitable. distance, and

a block 'v is mounted to slide vertically in a slot 8 in the frame, said block having a bolt w, mounted therein, on which a pair of rectangular shaped blocks w are pivotally mounted, said blocks being respectively arranged in the slots u, so that they may slide therein. A spring 2, is connected to the upper end of the block 1), and to the bracket 8 and acts to draw said block upwardl and thereby to swing the arms u toward v other. Said arms a are friction rolls 3 in their en s, mounted to rot-ate on pivots which extend parallel to the pivots t, as shown, the centers of said rolls being held approximately at, or slightly above, the level of the edge ofthe breasting knife I. With this construction, when the block 11 is moved upwardly, the rolls 3 will each rovided with 1 massbesimulta'neously swung toward each other and when it is moved down they will likewise be swung apart, but in all positions thereof they will be held equidistant from the vertical plane in which the axis of the blocks 10' constantly lies. The jack is also arranged so that the central vertical plane thereof is coincident with said vertical plane of said axis.

By turning the adjusting screw 1) the blocks t may be simultaneously adjusted either toward or from the central vertical plane of the axis of blocks to, or the mid-' dle-of the jack, so that the levers u will be correspondingly adjusted. This adjustment should be such that, when the jack is raised, the edge of the top lift of the heel to be breasted will engage the rolls 3 between the vertical planes of the axes thereof, so that the levers u will be forced away from each other and the rolls will be permitted to'rolldown on the sides of the heel, the spring 2 acting to hold the rolls. firmly a ainst the 4 sides of the heel in all the vertica positions substantially V 2. In a heel-breasting machine having a thereof. As the breasting knife is reciprocated the tendency of the knife to pull the will be effectively resisted by heel laterally the spring 2, acting throu h the parts which directly engage the heel. Vith this arrange ment, it Wlll not be possible for either, roll to move to agreater distance from the central line than the other, so that the heel will at all times be centrally held with relation to the breasting knife.

' I claim:

1. In a heel-breasting machine having a breasting knife and means for reciprocating the same longitudinally of its edge, a jack means for causing relative movement of sai jack and said knife transversely of the knife edge, shoe against the reciprocating action of the knife,

as described.

: breasting knife and means. for reciprocating the same longitudinally means for causin relative movement of sai jack and said knife transversely of the knife able su ed e, and en gmg devices for thee posite si w of the eel of a shoe held on t e jack arranged. to holdthe heel against the permitting movement of said vdevice's in opposite directions with relation to the 'jackfaccordin to the variations of the heels in width, substantially as described. V r

3. In a heel-breasting "machine having a breasting knife and means for reciprocating edge, a jack,

the same longitudinally of its means'for cau relative movement of said jack and said knlfe transversely of the knife edge, and holding devices disposed at o posite'sides of the jack in position to en agethe sides of the heel of a shoe thereon, points equidistantfrom the middle of said and means for engaging the heel of a held on the jack to hold the same b of its edge, a jack reciprocating action of the knife as thebreastin'g operation is performed, and means means for holding said devices at jack and means permitting adjustment of said devices toward and from each other, substantially as described.

at.v In a heel-breasting machine having a breasting knife and means for reciprocating the same longitudinally of its edge, a jack, means for causing relative movement of said jack and said knife transversely of the knife edge, and holding devices disposed at opposite'sides of the jack in position to engage the sides of the heel of a shoe supported thereon, means for holding said devices at points equidistant from the middle of said jack and means for simultaneously adjusting said devices toward and from each other, substantially as described.

--5. In a heel-breasting machine havinga breastingknife and the same longitudinally of its edge,'a jack movable toward and from said knife transversely of the edge thereof, to'br'east the heel of a shoe supported thereon, and heel-holding devices disposed to en ge opposite sidw of the heeland movable with the ack to hold the heel against the reciprocating action of the knife as the breasting operation. is formed, substantially as described.

. 6. In a heel-breasting machine having a breasting knife and means for reciprocatm the same longitudina'lly of its edge, a jac movable toward and ifrom said knife transversely of the edge thereof, to breast theheel of a shoe supported thereon, and heel-holdmg supported v means for reciprocating pera devices having diverging. faces extending toward the jack and disposed to engage o pohaving ition to engage opposite sides of on in the hee adapted to be lifted by the 8. A-heel-breastingmachine com a frame, a rotatable shaft mount [therein having an eccentric portion, a holder mounted adjacent said'sh'aft and having guideways, a knife-blockmounted to reci rocate in said guideways, means for removab necting said knife-block and said eccentric portionto cause reciprocation of said block as it is engaged by the knife, said- .support being I .ack as the ack is raised to perform. the reasting operation, substantially as described.

y conthereby," and means for removably connecting said holder to the frame arranged to call "hol er, means permitting en agement of the eccentric portion of said sha t and said block permit disconnection of the knife-block and the shaft as the holder is removed ,from the frame, substantially as described.

9. A heel-breasting machine comprising a frame, a shaft rotatably mounted therein, a holder having guideways, a knife-block reoiprocally mounted in said guidewa s, means for removably connecting said hol er to the frame and said block to said shaft, to cause reciprocation of said block when the shaft is' rotated and permit simultaneous removal of the holder and knife-block from the frame, substantially as described. 10. A heel-breasting machine comprisin a frame having guideways therein, a sha t rotatably mounted in said frame adjacent said guideways and having an eccentric portion, a holder slidably mounted in said guideways and having knife-block guideways formed therein, means for locking said holder in the frame when in osition onthe guideways thereof, a knife lock recipromounted in the guideways of said to cause reciprocation of the latter when the shaft is rotated, and constructed to ermit disengagement therewith when the ho der is 11. In a'heel-breastin machine, a breast- -ing knife having its en s extending at approximately right anfgles to its cutting edge and a holder there or having supporting arms extendin approximately the width of the knife an provided with sup orting faces for the end ortions thereof, an means.

for clamping sai end rtions against said faces, substantially as escribed.

12. In a heel-breasting machine, a breasting knife having its ends extending at approximately right angles to its cutting edge and a holder therefor having supportin arms extending. for approximately the widt of the knife and providedwith sup orting faces for the end ortions thereof an means for clampingsai endportions against said faces and an adjustable stop on the holder disposed to engage the side edge of the knife opposite its cutting edge, substantially as described.

In testimony whereof, I have signed my name to this specification, in the presence of two subscribing witnesses. t

. EDWIN A. WEBSTER. Witnesses:

L. H. Hanmmn, H. B. DAVIS.

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