US2489406A - Heel-breasting machine - Google Patents

Description

Nov. 29, 1949 H. E. ELLIOTT 2,489,406

HEEL BREASTING MACHINE Filed Sept. 2. 1948 s Sheets-Sheet 1 1120621101 Hare/d5. Elliott Nov. 29, 1949 H. E. ELLIOTT 2,489,406

HEEL BREASTING MACHINE Filed Sept. 2, 1948 e Sheets-Sheet s In men top Harold 5.152250% Nov. 29, 1949 H. E. ELLIOTT HEEL BREASTING MACHINE 6 Sheets-Sheet 4 Filed Sept. 2, 1948 2013 156 T S I [11 uerzim Harold 5. Elliott Nov. 29, 1949 H. E. ELLIOTT HEEL BREASTING MACHINE 6 Sheets-Sheet 5 Filed Sept. 2, 1948 Hamid 5.5mm

Nov. 29, 1949 H. E. ELLIOTT HEEL BREASTING MACHINE 6 Sheets-Sheet 6 Filed Sept. 2. 1948 Inventor Harold E. EM H Patented Nov. 29,1949

HEEL-BREASTING MACHINE Harold Ernest Elliott, Leicester, England, assignor to United Shoe Machinery Corporation, Flemington, N. J a corporation of New Jersey Application September'Z, 1948, Serial No. 47,363 In Great Britain September 23, 1947 12 Claims. 1

This invention relates to trimming machines and is herein illustrated as embodied in a ma chine for breasting built up leather heels. 2'

The present invention which is fully disclosed in the following description and claims consists" Fig. 1 shows in perspective the illustrative heel breasting machine as viewed from the front and the right of said machine;

- Fig. 2 is a front view, partly broken away and partly in section, of the machine;

Fig. 3 is a front view, partly broken away, showing portions of an operating head of the machine in the process of breasting a heel;

- Fig. 4 is a view of the machine on line IV--IV of Fig. 2 showing in plan a heel supporting block and heel positioning mechanism associated'therewith;

Fig. 5 is an enlarged side View showinga heel in the process of being breasted by the illustrative machine;

Fig. 6 is a side view of the heel supporting block and breast gage supporting mechanism as viewed on line VI-VI of Fig. 4; i 1

Fig. '7 shows in front elevation portions-ofthe heel supporting block and the heel positioning mechanism as viewed on line VII-VII of Fig. 4;

Fig. 8 is a view similar to Fig. '7 showing the heel positioning breast gages of the machine in raised positions to facilitate the removal from the block by the blower of a chip trimmed from the heel;

Figs 9, 10 and 11 are illustrative views showing portions of breast gage operating mechanism during three different stages in the operation of the machine; and

Fig. 12 shows in front elevation, partly broken away and partly in section, portions of knife operating mechanism and mechanism for operating the chip ejecting blower of the machine.

. The illustrative machine is described with reference to breasting an unattached built-up leather heel 29 (Figs. 2 to 6 inclusive) which is to be attached to a shoe (not shown) by the well-known push-on method practiced by the use of the machine disclosed in an application for United States Letters Patent Serial No. 573,026, filed J anuary 16, 1945, in the names of Thomas B. Clarke and Arthur A. Rivington, which issued on September 6, 1949, as Patent No. 2,480,905. The heel 20 to be breasted is, supportedupon a table, support or block 22 with its top lift 24 (Figs. 5 and 6) in engagement with a flat upper face or surface 25 of the block, and is positioned widthwise and lengthwise on said face by side gages 26, 26a and breast gages 28 respectively which will be here inafter described in detail. When the heel 20 has been positioned upon the face 25 of the block 22 the operator depresses a treadle 30 (Figs. 1 and 2) causing, through mechanism which will be described later, a cutting edge 32 of a knife 34 (Figs.

1, 2, 3 and 5) secured to a knife slide 36 (Figs. 1, 2 and 12) vertically'slidable in a main frame 31 of the machine to engage an attaching face 38 (Figs. 4, 5 and 6) of the heel 20, resistance against the knife being effective to cause the tripping of a one-revolution clutch 40 (Figs. 1 and 2) with the result that an operating rod 42 (Figs. 2, 3 and 12) is driven through a cycle further to depress the knife slide 36 to trim a chip 44 (Fig. 4) from the breast of the heel.

- The length of the top lift 24 of the untrimmed heel 20 is approximately the same as that desired in the breasted heel, it being customary to shave from the breast of the top lift of said heel the chip 44, lateral margins of which are as thin as practicable. The breasts of upper lifts 46 of the unbreasted heel 20 sometimes project slightly forward of the breast of the top lift 24 as best shown in Fig. 5 but are commonly in substantial alinement with the breast of the top lift.

The heel supporting block 22 is provided with a pair of arcuate ribs 48 (Figs. 1 and 2) fitting slidingly in arcuate guideways 50 formed in spaced upstanding flanges of a mount 52 which has a shank 54 (Fig. 1) fitting in a split boss portion 56 of the main frame 31 and which has a depending threaded portion 58 fitting in a bore 60 in the upper end of a column 62. The column 62 is supported upon a bearing 64 secured to the main frame 31 and has its lower end disposed in a notch 68 of the main frame. Since the shank 54 of the mount 52 fits in a bore of the boss portion 56 of the main frame 31 and the threaded portion 58 of said mount fits in the bore 60 of the column 62, it will be clear that said column does not swing on the bearing 64, the present machine being a change-over of a well-known machine which is used for breasting heels attached to shoes and in which the column swings to a slight extent for the purpose of presenting work to the machine.

Threaded onto the threaded portion 58 of the mount 52 is a hand nut 68 having a flat lower face which rests upon the upper end of the column 62. Rotation of the hand nut 68 after releasing a handled binding screw I9 effects the raising or lowering of the mount 52. The binding screw I is used for clamping the split boss portion 56 of the main frame 31 to the shank 54 of the mount 52, a handled setscrew I2 threaded into the front upstanding flange of the mount 52 being used for binding the block 22 in it proper angular position upon the mount. The block 22 is initially set in its proper angular position upon the mount 52 and the mount in its proper height wise position upon the column 62 by the use of the above-described mechanism, the knife 34 thereafter being properly adjusted upon and secured to its slide 36 by mechanism generally indicated by the reference numeral I3 so that the cutting edge 32 of the knife shall just engage the upper face of the block at the lower end of travel of the knife,

The knife slide 36 reciprocates along guideways I4 (Figs. 2 and 12) of the main frame 31 and is constantly urged upward by a spring I6 (Fig. 12) upward movement of the knife slide being limited by the engagement of a flange I8 extending from the rear of said slide with a nut 86 adjustably secured to the upper end of the operating rod 42 which fits slidingly in a bore 82 of the flange and is pivoted at its lower end to a connecting rod 84 (Figs. 2, 3 and 12). The lower end of the rod 84 is p-ivotally connected to a crank 86 (Fig. 2) driven by a main drive shaft 88. The knife operating mechanism is substantially identical with that described in United States Letters Patent No. 1,117,627, granted November 17, 1914, on an application filed in the name of Arthur Bates, the only difference being that the knife of the present machine is operated through the treadle til whereas the knife of the machine disclosed in said Patent No. 1,117,627 is operated by a hand lever. The treadle 36 is mounted upon a'pivot rod 96 (Figs. 1 and 2) andhas operatively connected to it the lower end of a link 92, the upper end of which is pivoted to the central part of a floating lever 94. The left end of the floating lever 94 as viewed in Figs. 1 and 2 isoperatively connected through a link 95 to the knife slide 36 and the right end of said lever is pivotally connected to a clutch control rod 96 which is constantly urged by a spring 98 to a raised position in a slot I08 of the main frame 37 and the lower end of which is pivotally connected to an operating rod I62 which corresponds to the operating lever E6 of the construction disclosed in said Patent No. 1,117,627 and is pinned to a rock shaft 504 carried by the main frame. The illustrative one-revolution clutch is of the roller type disclosed in said Patent No. 1,117,627 and comprises a stop arm I06 which is also pinned to the rock shaft I64 and to which is secured a U- shaped spring I68. The rock shaft I64 has also secured to it an arm I I0 to an outer end of which isattached a spring H2 for constantly urging, through mechanism described in detail in said Patent No. 1,117,627, the U-shaped spring I08 into a position to be engaged by a shoulder I I4 of a member H6 of the clutch. When the treadle 30 is first depressed the floating lever 94 is moved counterclockwise as viewed in Figs. 1 and 2 about the upper end of the rod 96 which is then held in its raised position by the spring 98. When the knife 34 has been lowered into engagement with the heel 2i] and meets resistance the spring 98 is compressed, continued depression of the treadle rod 92 causing the lowering of the clutch controlrod 96 and through the above-described mecha-' nism the withdrawal of the U-s-haped spring I08 from engagement with the shoulder I I4 of the clutch member I I6 with the result that the drive shaft 88 is rotated through a complete revolution. The U-shaped spring IE8 is thereafter swung into the path of the shoulder H4 of the clutch member H6 by mechanism disclosed in detail in said Patent. No, 1,117,627 to stop movement of the drive shaft/.88. The knife slide 36 is raised togeth'er with the operating rod 42 by the action of the spring 76 (Fig. 12) it being the practice for the operator to release the treadle 36 immediately after the clutch has been tripped.

The side gages 26, 26a for positioning the heel 2G width-wise upon the upper face 25 of the block 22 have opposing downwardly converging faces H8, H8a respectively constructed and arranged to be engaged by opposite sides of the top lift 24 of of which are straight.

the heel. The side gages 26, 26a comprise rectangular base portions I26 (Figs. 1, 7 and 8) having internal threaded portions in driving relation with left and right hand threaded portions i22, i24 of a screw I26 which is rotatably mounted in a bore I28 (Fig. 4) of the block 22 and has a knurled head. When the screw H6 is rotated in the block 22 the gages 26, 26a move equal distances toward or away from each other.

The gages 28 which are engaged by the lateral margins of the breast of the top lift 24 of the heel 2 are normally in heel gaging positions adjacent to or in engagement with the face 25 of the block 22. A bevel I30 (Fig. 5) on the knife 34 tends slightly to slide the heel forward, that is, to the right as viewed in Figs. 2 and 5 as the knife trims material from the breast of the heel.

t is desirable that the gages 28 remain in their gaging positions adjacent to the block 22 while the upper lifts 46 (Figs. 5 and 6) of the heel are being breasted to insure the formation of a smooth breasting cut, the heightwise elements It is desirable, however, that as the heel top lift 24 whico rests upon the face 25 of the block 22 is being breasted, the gages 28 shall move away from the heel under pressure of the lower end of the chip 44 forced forward by the beveled face I30 of the knife 32. As will be hereinafter explained, the breast gages 28 are held in their operative positions adjacent to or in engagement with the face 25 of the block 22 by spring pressure sufiiciently heavy to insure that when the lifts 46 of the heel are being breasted the breast gage shall remain in its gaging position, said breast gages being yieldable against the action of said spring pressure by the chip 44 which is being trimmed from the top lift and is thrust forwardly by the bevel i353 of the knife 34. the breast gages 28 may be moved forward about a common axis I32 (Figs. 4 and 6) of fulcrum pins I34 against the action of a spring I36.

Moreover, it is desirable after the breasted heel has been removed from the machine automatically to eject the chip 44 from the machine by forcing it over theright edge of the block 22 as Viewed in Fig. 2 by a blast or jet of air directed across the face 25 of the block from a nozzle I40 (Figs. 1, 2, 3 and 4). It has been found, however, that if the breast gages 28 are left in their heel gaging positions adjacent to or against the face 25 of the block 22 they interfere with the removal of'the chip $4 from said block. Accordingly after the heel 20 has been breasted the breast gages 28 are moved upward and if desirable slightly to theright as viewed in Fig. 7 to raised retracted positions shown in Fig. 8 spaced a substantial distance, for example about. /2" away from the With the foregoing considerations in view.

upper face 25 of the, block, said breast gages being temporarily held in their raised positions above the block to provide adequate space for the chip to pass uninterruptedly beneath them as it is ejected from the machine by said blast of air from the nozzle I40. By causing the breast gages 28 to move slightly forward with relation to the heel as they are raised to their retracted positions away from the block 22 there is little likelihood of the breast gages tipping over the chip as they are moved to their retracted positions.

The breast gages 28 are secured in recesses I42 (Figs. 4, 6, '1 and 8) of associated friction spools I 44 by screws I46 threaded into said spools, the gages extending to the left (Figs. 3 and 7) over the right end of the block 22 and then downward (Figs. 3, 6 and 7) toward the block and inward (Figs. 4 and 6) toward each other, the construction and arrangement being such that when the gages are in their operative positions adjacent to or against the face 25 of the block 22 they are engaged by the lateral margins of the breast of the top lift 24 of the heel. The spools I44 have conical friction faces I48 (Figs. 4 and 6) which engage associated conical friction faces I50 of the L-shaped plates I52, I52a, shank portions of said spools fitting in recesses I54 formed in said plates. The conical faces I48 of the spools I44 are forced against the conical faces I50 of the L-shaped plates I52, I'2a, by springs I56 interposed between said plates and collars I58 secured to the spools. The strength of the springs I56 and the character of the faces I48, I50 of the spools I44 and the L-shapel plates I52, I52a are such that the spools and accordingly the breast gages 28 maintain initially adjusted positions upon the plates.

Rotatably mounted on pivot pins I60 secured to the heel supporting block 22 are flanges I62, I64 of a U-shaped rocker or mount I66 which, through a link I68 pivotally connected to the flange I64, a lever I pivoted to the link and a spring I12 (Figs. 2 and 3), opposite ends of which are attached to the main frame 31 and to the lever I10, is constantly urged counterclockwise as viewed in Figs. '7 and 8 about an axis I14 (Figs. 4 and 6) of the pins I 60 toward a stop I16 carried by the block 22. The axis I14 of the pins I60 is positioned directly below the heel engaging portion of the gage 28. The flanges I62, I64 of the U-shaped rocker i 66 have depending lugs I18 into which are threaded the fulcrum studs I34, inner ends of which fit in conical openings I80 of flanges I82 of a carrier plate I84 into which is threaded a stop screw I86 which is held in its adjusted position in'the carrier plate by a locknut I88 and may be considered as part of the carrier. The stop screw I86 is constantly urged against a cam surface I90 which is formed in the block 22 and extends upward and to the right as viewed in Figs. '7 and 8, by the spring I36, opposite ends of which are attached to the flange I62 of the U-shaped rocker I66 and to the carrier plate I84. Secured to and projecting from the carrier plate I84 is a screw I92 which extends through elongated slots I94, I96 of the L-shaped plates I52, I 52a respectively and through a bore of an adjusting bar I98, said screw having threaded onto it a Wing nut 200. Also threaded into the carrier plate I84 is a stud 202 which fits in the elongated slots I94, I96 of the L-shaped plates I52, I52a respectively. Formed in the adjusting bar I98 are slots 204 for receiving studs 206 carried by the plates I52, l52a respectively. When the wing nut 200 6. iszclamped against. the adjusting bar I98 the. L-c sh'apedplates I52, I52aare secured firmly. to the carrierplate I84. In setting up-the machine the breast gages 28 are moved equal distances toward- 1 or away from each other after loosening the wing nut 200, byturning the barI98 inthe properdirection upon the screw I92, the wing nut thereafter being screwed onto the screw into clamped relationwith the bar to secure the plates I52, I52a to the carrier plate I84. The carrier plate I84 together with the various parts which are mount ed upon' said plate and support the breast gages- 28 may be-referred to asa carrier 208. It-will-be apparent that whenthe U-shaped rocker I66 (Figs. 4 6, 7 and8) is swung counterclockwise from its position illustrated in Fig. 7; to its position shown in Fig. 8 about the com-'- mon axis I14 of the pivot pins I60= the breast gages 28 which may be referred to collectively as a breast gage are moved to their raised posi-- tions spaced a substantial distance above the face 25 of'the block 22; As the U-shaped rocker I66 swings counterclockwise as viewed in Fig. '1 the stop screw I86 of the carrier rides up the cam surface I and causes the carrier to rotate clockwise upon the'rocker thereby compensating for the angular movement of the rocker and thus in suring that said gage 28 shall be raised at right angles to the face 25 of the block 22. If desirable the shape of the cam surface I90 may be varied so as to impart a component of move-" ment forward of the heel to the gages 28 as said gages are moved to their raised positions, thereby insuring that the chip 44 shall not be pushed up or knocked over as the gases are raised. 7 During the breasting of the upper lifts 46 of the heel 20 the spring I36 is strong enough to' retain the breast gages 28 in their gaging positions but as the knife 34 breasts the top lift .24 of the heel the breast gages 28 under pressure of the lower end of the chip 44 being severed are forced slightly to the right as viewed in Fig. 3 by the beveled face I30 of the knife 34 causing said gages to yield against the action of the spring I36 thereby relieving pressure against the knife and insuring against deflection of said knife from its rectilinear path.

As the knife '34 starts to rise after breasting the heel 20 the operator removes the heel from theface 25 of the block22 leaving the chip '44- resting upon 'said block.- During the'first part of the upward movement of the knife 34 it is d'e-f sirableto move the breast gages 28 to their raised positions shown in Fig. 4 in order that when 9;; blast or jet of air is forced from the nozzle I 40, against the chip as the knife approaches the upward end of its movement, said chip maybe removed without interference from the gages. In order to actuate-at the proper times the breast gages 28 and a blower or ejector 2I2 which is connected by a hose 2I3 to the nozzle I46, said gages and blower are operatively connected to V the operating rod 42 through mechanism hereinafter described. Pivotally mounted in the main frame 31 is a shaft 2 I4 to opposite ends of which are secured a lever 2I6 and a crank 2I8, the lever being operatively connected at its right end (Fig. 3) through a pin-and-slot connection 220 to the operating rod 42 and being pivotally connected at its left end to a rod 222 forming part of the mechanism for operating the blower 2I2. The arm I10, which is operatively connected to the link I68 for actuating the U-shaped I66, is secured to one end of a fulcrum pin 224 journaled in the mainframe 31, the other end of :said pin being pinned to a depending latch aim 226. Positioned beneath the latch arm 22$ and pivotally connected to the crank 218 is an actuatorzarm 228 which :has a latch shoulder 23!! and is constantly urged upward by a spring .232, upper and lower ends of said spring being attached to the mainframe 31, and to the actuator arm. The crank 2; and the actuator arm 2-28.;maybe described as forming-a-toggle which iszsubstantiallystraightened out as illustrated in Fig. .3 when the operating rod '42 and accord ingly the knife 34 are at the lower ends of their strokes at which time the latch shoulder 230 is displaced to the left of a face 2340f the latch arm 225 and is also forced downward away from the latch arm by a collar 236 secured to a rod zilactuated, as will behereinafter explained, by-the blower2l2.

Associated with the blower 21.2 is trip mochanism239 (Figs. 2 and 3) comprising a plunger 2.40 (Figs. 2, 3 and 12) which is vertically slidable in=a bore 242 (Figs. .3 and in the upper end of a cylinder 244 and is constantly urged by a spring 246 .to an idle dash-line position (Fig. .3) in which the lower end of the plunger extends into the upper end of a -bore'248of the cylinder 244.

Pivoted upon a stud 250 fixed to a lug 252 secured to the cylinder 244 is a .lever 254 into the rear end of which is threaded an adjustable screw 256'and to the forward end of which is pivoted the rod 238. Ihe lower end .of the rod 238 extends through an opening 258 in theactuator arm 228, the collar .236 on the rod .being constructed and arranged to overlie a .face 2650 (Figs. 3 and 9) of the actuating-arm. When the knife-34 isat the lower'end-of its breasting stroke apiston 262 vslidable in the bore v248 of the cylinder 244 is at the upper end of said bore and has moved the plunger 240 upward against the action of the spring 246 causing the collar 23!; of the rod 238=to move the'actuating arm 228 counterclockwise about the crank 218 against the :ac* tion of the spring 232. As the knife 34 moves upward to :its raised starting position the piston 262-is moved downward in the air cylinder 244 by mechanism hereinafter described with the result that the collar 2360f the'rod 238 israised away from the actuatingarm 228, saidactuating arm under the action of the spring 232 moving clockwise against the latch arm 226 with its shoulder 230 arranged to the .left (Fig. .9) of the face234-of the latch arm. At the same time the crank 2.1 8-swings counterclockwise causing the breakingof the toggle and the actuator arm 228 to be drawn to the right thus moving the latch arm .226 counterclockwise and accordingly through the above-described mechanism the breast gages 28 upward to their positions shown lnFig. .8.

L'As the operating rod" is raised the lever 216 is swung counterclockwise (Fig. 12) causing the rod 222, aface .264 of which is then in engage ment with aretaining pin 266 secured'tothe piston 262, to be moved downward. The rod .222 isnormally urged to a position in which itsface 264 overlies theretaining pin 266 by a leaf spring 268 :secured to the piston 2,62 and as said rod is lowered the piston is lowered'in the bore 248 of the cylinder 244 against the action .of .a coil spring 212, upper and lower ends of which en'- gage the piston and the cylinder respectively. Although .as above explained the breast gages 28 are moved to their raised positions illustrated in.Fig. -8-away from the block2-2 during thefirst 8 part of the retractive movement of the knife :34 it is desirable to delay the blast or jet of chip ejecting air through the nozzle I40 until the knife has almost reached the upper end of its stroke thereby allowing the operator ample time in which manually to remove the breasted heel from the block 22 before ejecting said chip. In order to swing the rod 222 away'from the retaining pin 2% near the upper end of the strok'e of the knife 34 the operating rod 42 has an extension 274 (Figs. 3 and 12) to whichis secured a collar 216 (Fig. 12). Pivotally mounted upon a pin 233 secured to the main frame 3? is a bell crank lever 28!), an upper arm of which has threaded into it a-screw 282 and a lower arm of which is pivotally connected to a link 284 supported in a horizontal position by a pin 286 carried by the main frame 3'i and extending through an elongated slot 288 in the link. The link 284 is also provided with a bore 294 through which passes the rod 222, said rod passing down through the bore as the operating rod 42 is raised. When the knife 34 and accordingly the operating rod 42 have almost reached their upper limits of travel the collar 5 engages the screw 282 causing the bell crank lever 285 to swing counterclockwise and withdraw the face 264 of the rod 222 from the re taining pin 268 against the action of the leaf spring 258 thus permitting the piston 262 to move to its elevated position in the cylinder 244 under the action of the coil spring 272 and accordingly causing air in the bore 248 of the cylinder 244 to be ejected under pressure through the nozzle I48 to blow the chip 44 remaining on the block 42 from said block.

In breasting heels 26 by the use of the above= illustrated machine the operator places the heel, top lift 24 down, upon the face 25 of the block 42 between the side gages 26, 26a then initially adjusted and slides the heel to the right as viewed in Fig. 2 until the lateral margins of the breast of the top lift of the heel are in engagement with the breast gages 28 respectively, the side gages being finally adjusted to position the heel widthwise on said face. When the heel 26 has been positioned upon the block 22 the operator depresses the treadle 30 causing the knife slide as to be lowered against action of the spring "i6 (Fig. 12) until the knife 34 is resisted substan tially by the heel. As downward movement of the treadle 3d continues the clutch control rod 25 is lowered against the action of the spring 98 with the result that the one-revolution clutch 4B is tripped, the operating rod 42 being actuated to lower the knife slide 36 to effect the breasting of the heel. The .treadle 3D is immediately released by the operator after the one-revolution clutch 40 has been tripped, the knife slide 36 and the operating rod 42 being raised together to their starting positions.

-44 thrust forward by the action of the bevel face I30 of the knife. As the knife 34 starts its upward movement away from the block 22 the breast gages 28 are raised from their gaging positions illustrated in Fig. '7 adjacent to the block to their positions illustrated in Fig. 8 leaving between them and the face 25 of the block an adequate space to facilitate removal of the chip 44 from the block.

erator manually removes the breasted heel from angle l 9 the machine and just before said knife reaches the upper end of itsv stroke a jet of air is ejected from the nozzle I40 to blow the chip 44 then on the block 22 from the right edge of the block as 1. In a trimming machine a support for a shoe part, means comprising a gage for positioning-said shoe part on the support, a movable knife for trimming a chip from said shoe part, ejecting means for removing said chip from the support,

mechanism for moving said gage from an operative gaging position adjacent to said support to a position spaced a substantial distance from said support to facilitate removal of the chip from the support by said ejecting means, and. means movable in response to movement of the knife for operating said mechanism to move the gage away from the support and for thereafter operating said ejecting means to effect removal of the chip from the support.

2. In a trimming machine, a support for a shoe part, means comprising a gage for positioning the shoe part on the support, means comprising a stop for positioning the gage in an operative gaging position adjacent to the support, a reciprocative knife movable toward the support to trim a chip from said shoe part, mechanism comprising resilient means for constantly urging the gage toward its gaging position, an actuator movable in response to movement of the knife, means for coupling the actuator to said mechanism during movement of the knife away from the support to move said gage a substantial distance .away from the support, an ejector for removing the chip from the support, and means responsive to movement of the ejector for uncoupling the actu-. ator from said mechanism when the chip has been removed from the support to cause the gage to be moved back to its gaging position adjacent to the support in response to movement of said resilient means.

3. In a trimming machine a support for a shoe part, means comprising a gage for positioning the shoe part on the support, means comprising a stop for positioning the gage in an operative gaging position adjacent to the support, a reciprocative knife movable toward the support to trim a chip from said shoe part, mechanism comprising a spring for constantly urging the gage toward its gaging position, an actuator operatively connected to the knife, means for coupling the actuator to said mechanism during movement of the knife away from the support to move said gage a substantial distance away from the support and away from the chip trimmed from said shoe part and left on said support, a blower for removing the chip from the support, and means responsive to movement of the blower for uncoupling the actuator from said mechanism when the chip has been removed from the support to cause the gage to be moved back to its gaging position adjacent to the support in response to movement of said spring.

4. In a trimming machine, a support for a shoe part, means comprising a gage for positioning the shoe part on the support, mechanism comprising resilient means for moving the gage to and holding it in an operative shoe part gaging position adjacent to the support, an actuator, a spring for constantly urging the actuator into a coupling position with relation to said mechanism, a reciprocative knife movable toward the support to trim a chip from said shoe support, a blower for ejecting said chip from the support, means movable in response to movement of the knife away from said support for first causing said mechanism to move the gage against the action of said resilient means to an inoperative position spaced a substantial distance from the support and for thereafter effecting operation of the blower to eject said chip from the support, and means movable in response to operation of the blower for disengaging, against the action of said spring, the actuator from said mechanism when the chip has been removed from the support to .cause the gage to be moved under the action of said resilient means back to its gaging position adjacent to the support.

5. In a heel breasting machine, a support for .a heel, means for positioning the heel upon the support, said means comprising a gage which is movable to a gaging position adjacent to said support and is constructed and arranged to be engaged by the breast of the heel, a reciprocative knife movable toward the support to trim a chip from the breast of the heel and movable-to a retracted idle position away from said support,

and means responsive to movement of the knife to its retracted position for raising the gage a substantial distance from the support to faci1i+ tate removal of the chip from said support.

6. In a heel breasting machine, a block having a surface for supporting a heel, means for positioning the heel widthwise upon said surface, a gage which is positioned adjacent tosaid surface and is constructed and arranged to be engaged by the lateral margins of the breast of the heel to position said heel lengthwise on said surface, a knife which is movable toward said surface'of the block to trim a chip from the breast of the heel and which is movable to a retracted position away from said surface, and means operative, in timed relation with the knife for raising, during retraction of the knife, the gage a substantial distance away from said surface to facilitate removal of the chip from said surface.

7. In a heel breasting machine, a support for a heel, means comprising a breast age for positioning the heel upon the support, and a knife which is movable toward the support to trim a chip from the breast of the heel and which is movable away from the support to a retracted starting position, said breast gage being movable simultaneously about spaced parallel axes in response to retractive movement of the knife to move the gage a substantial distance away from said support in order to facilitate removal of the chip from the support.

8. In a heel breasting machine, a support for a heel, means for positionin the heel widthwise on the support, a gage which is positioned adjacent to said support and is constructed and arranged to be engaged by the breast of a top lift of the heel and not by other lifts of the heel to position said heel lengthwise on said support, a reciprocative knife movable toward the support to cut a chip from the breast of the heel, and mechanism which is constructed and arranged to hold the gage stationary with relation to the support when said other lifts of the heel are being breasted but which is yieldable under pressure of the chip formed betweeen the knife and the gage when the top lift of the heel is being breasted.

9. In a trimming machine, a support for a built up heel having a top lift, means for positioning the heel upon the support, said means comprising a gage constructed and arranged to b engaged by the lateral margins of the breast of said top lift, areciprocative knife movable toward and against the support to trim a chip from the breast of the heel, an ejector for removing the chip from the support, a carrier for the gage, a member which is movable with relation to the support and upon which the carrier is pivotally mounted, a cam, a cam follower mounted upon the carrier, a spring for constantl urging said follower against the cam, and means for moving knife toward and against the support to trim a chip'from the heel and for moving the knife to a retracted position away from the support, an ejector for removing the chip from the support, said heel positioning means comprising a pair of gages which are normally positioned adjacent to'the support and are constructed and arranged to be engaged by the lateral breast margins of the top lift of the heel, a member mounted for pivotal movement about an axis extending width- Wiseof' the heel and arranged directly below heel engaging portions of said gages, a carrier for said gages, saidcarrier being pivotally mounted upon said member for movement about an axis which is parallel to the first-named axis and is arranged below and forward of the heel, a cam, a cam follower fixed to the carrier, a spring which constantly urges said cam follower against the cam and which enables the carrier and accordingly the gages to move forward yieldingly with relation to said member when the top lift of the heel is being breasted, and means movable in response to movement of the knife for actuating said member to cause the gages to be moved-a substantial distance away from the support to facilitate ejectionrof the chip from said support.

11. Ina heel breasting machine, a support for a heel, means for positioning the heel widthwise upon the support, gages constructed and arranged to be engaged by the. breast of the heel for positioning said heel lengthwise upon the support, a reciprocative breasting knife movable toward the support to trim a chip from the breast of the heel and back to a retracted position, means for operating the knife, a carrier for said gages; means formoving the carrier from an active position in which the gages are positioned adjacent to the support to a retracted position in which the gages are moved a substantial distance away from the support and are moved away from the chip upon the support, a blower for directing a jet of air against the chip upon the support, and mechanism operative in timed relation with the knife for actuating said means to move the carrier to its retracted position for facilitating removal of the chip from the support and for thereafter operating the blower to remove said chip from the support.

12. In a heel breasting machine, a support for a heel, means comprising a pair of breast gages for positioning the heel upon the support, a reciprocative knife movable toward the support to trim a chip from the breast of the heel, an ejector' for removing the chip from the support, a mount, a carrier for said gages pivotally supported upon the mount, a cam, a spring for forcing the carrier against the ca m to control the angular movement of the carrier upon the mount, and means movable in timed relation with the knife for operating the mount to move the gage away'from' the support and simultaneously therewith'to swing the carriage and accordingly the gages upon the mount.

HAROLD ERNEST ELLIOTT.

No references cited.

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