US2265345A

US2265345A - Machine for operating upon shoe bottoms

Info

Publication number: US2265345A
Application number: US289638A
Authority: US
Inventors: Charles G Brostrom
Original assignee: United Shoe Machinery Corp
Current assignee: United Shoe Machinery Corp
Priority date: 1939-08-11
Filing date: 1939-08-11
Publication date: 1941-12-09
Anticipated expiration: 1958-12-09

Description

. 9, 1941. c. G. BRosTRoM MACHINE FOR OPERATING UPON SHOE BOTTOMS Filed Aug. 11, 1939 8 Sheets-Sheet 1 De@ 9 1941 c. G. BRosTRoM 2,265,345

MACHINE FOR OPERATING UPON SHOE BOTTOMS Filed Aug. 11, 1939 8 Sheets-Sheet 2 J3@ wf/m7@ KM :8m

05 a. MKM

. 9, 1941. c. G. limos-Hmm 2,255,345

MACHINE FOR OPERATING UPON SHOE BOTTOMS 8 Sheets-Sheet 3 Filed Aug. 11, 1939 De@ 9, 1941- c. G. BRosTRoM 2,265,345

MACHINE FOR OPERATING UPON SHOE BOTTOMS Filed Aug. 1l, 1959 8 Sheets-Sheet 4 Tig. 6

Dec. 9, 1941. C, Q BROSTROM O 2,265,345

MACHINE FOR OPERATING UPON SHOE BOTTOMS Filed Aug. 11, 19:59 8 sheets-sheet 5 6%@ Tige 7 A//WNTUA Dec. 9, 1941. c. G. BRosrRoM MACHINE FOR COPIEIRA'IING UPON SHOE BOTTOMS Filed Aug. 1l, 1939 8 Sheets-Sheet 6 Dec. 9, 1941. c. G. BRosTRoM MACHINE FOR OPERATING UPON SHOE BOTTOMS Filed Aug. 11, 1939 8 Sheets-Sheet '7 VVE/vm@ ma @i @fas-..-

De@ 9, 1941- c. G. BRosTRoM 2,265,345

MACHINE FOR OPERATING UPON SHOE BOTTOMS Filed Aug. l1, 1939 8 Sheets-Sheet 8 23a -o aa 206 404 an l/mv n z/a g 274 E 27a 20g/V 402 y /A/VE/VTU@ *flav/ 272 v f1/M5 mza Patented Dec. 9, 1941 2.265.345 MACHINE For. ormwrmc UPON suon norroMs Charles G. Brostrom, Salem, Mass., asoignor to United Shoe Machinery Corporation, Borough of Flemington, N. J., a corporation of New Jersey Application August 11, 1939, Serial No. 289,638

32 Claims.

This invention relates to machines for use in the manufacture of shoes and is illustrated herein in a heel seat fitting and roughing machine.

In accordance with the present practice of manufacturing shoes, heel seats are customarily tted on shoes by a cutting or trimming operation which forms a surface on the rear portion of the outsoles that approximates somewhat roughly the shape of the attaching faces of heels for those shoes. After the cutting or trimming operation, heels are attached to the heel seats by driven fastening means, such for example as nails or screws, which connect the insoles to the heels. The heel seats as customarily made, in accordance with this practice, do not have, nor do they need, contact with the attaching faces of the heels throughout their entire area in view of the strength of the connections formed by the driven fastening means. Furthermore, the outer or grain surfaces of the fitted heel portions are not roughened so that they are not adapted'to receive an adhesive.

While the above method of heel seat fitting is satisfactory when heels are secured to shoes by driven fastening means, it is not satisfactory for cement attaching heels to shoes because the grain surfaces of the fitted heel seats must be roughened before they can take an adhesive and the surfaces of the heel seats are not exactly complemental, throughout their area, to the shape of the attaching faces of the heels. For cement attaching heels to shoes the shape of the vzo entire surface of the heel seats should be complemental to that of the attaching faces of the heels so as to afford a maximum bonding area with which to resist the pulling and twisting stresses to which the heel is subjected in wear.

While it is possible with machines now available to shape the surface of a heel seat complementally to the attaching face of a heel and to roughen it for the reception of an adhesive, it is necessary to perform three different operations on three different machines to secure the desired result. These operations are heel seat fitting, which involves the removal of surplus material from the heel seat, heel seat forming which consists of molding the fitted heel seat, and roughing the finished heel seat formed by the molding operation to prepare it for the reception of an adhesive.

It is an object of this invention to provide a machine for making, in one continuous machine operation, a roughened heel seat on the rear portion of a shoe, the heel seat being shaped complementally to the attaching face of a heel for the shoe so that it is ready forthwith to receive an adhesive and be attached to the heel. With this object in view, a feature of the invention, as embodied in the illustrated machine, comprises a roughing and cutting tool and a work support which are arranged to move relatively to 'one another with a combined heightwise, transverse and tilting movement such that the roughing and cutting tool will form on the rear end of a shoe a roughened heel seat which is shaped complementally to the attaching face of a heel for that shoe. In the illustrated machine the relative movement between the tool and the work support is effected by moving the work support transversely past the roughing and cutting tool and by modifying the transverse movement of the work support by cam control means which are operative to raise and lower the work support as it moves relatively to the roughing and cutting tool to form a convex surface on the forward portion of the heel seat. The cam control means also tilts said support in the direction of the length of the shoe so as to form on the rear portion of the heel seat a peripheral surface which tapers downwardly and outwardly from the tab-like central portion to the edge of the sole. The work support is caused to move past the roughing and cutting tool in an arcuate path so that the tool forms on the shoe a convex heel breast receiving abutment which projects toward the rear end of the shoe.

In the illustrated machine the cutting and roughing tool rotates about a fixed axis and the shoes are presented to the tool by a work support which is arranged for movement from a loading position located below the point of operation of A the tool, upwardly to a starting position from which it is moved transversely past the tool with a motion calculated to form a heel seat of the desired configuration. The starting position to which the work support is moved must be properly correlated with the point of operation of the cutting and roughing tool because if it is too high an excessive amount of material will be removed by the tool, while if it is too low insufficient material will be removed and in either case an unsatisfactory operation will result.

In accordance with another feature of this invention, the starting position to which the work support is moved from its loading position is determined by a gage which is arranged to engage the heel portion of a shoe on the support and is located in the path of the upward movement of the work support. In accordance with one embodiment of this feature of the invention,

the gage consists of a heel plate which is movedl from an inoperative position to an operative po` to an inoperative position after each gaging operation, as the work support can move the shoe 3 i out from under the gage toward the tool withou l interference from the gage.

j Invention is also to be recognized in the construction and arrangement of the cutting and roughing tool whereby the same may be adjusted in a lengthwise direction to vary the size of the heel seat which is formed by it; in the adjusting mechanism for the cam control means that reg- 1 ulates the heightwise and tilting movement of the work support as it presents a shoe to the i cutting and :roughing tool, the adjusting mechanism adapting the cam control means for opl verations upon right and left shoes; in the cycle j controller which regulates the movement of the i work support past the cutting and roughing tool; and in the operating mechanism for the shoe i clamp which is so constructed as to apply equal pressure to the opposite sides of a shoe without 3 shifting the position of the shoe as it is clamped in the work support.

Fig. 11 is a view illustrating an alternative embodiment of the linkage system for operating the shoe clamping means, together with hydraulie means for actuating the linkage system;

Fig. 12 is a .Sapp plan view of a portion of the machine head showing an alternative embodi-v ment of the gaging mechanism for determining the starting position of the work support and also another form of control mechanism for adjusting the cutting and roughing tool;

Fig. 13 is a side elevation of the portion of the machine head shown in Fig. 12, illustrating the relationship of the parts shown in that ligure; and

Fig. 14 is a plan view of a heel seat'iltted by the machine.

Referring to thedrawings, the machine ccmprises, in general, a rectangular casing I0 having an upstanding post I2 upon which is rotatably mounted a cutting and roughing tool I4 (Fig. 3). Positioned beneath the cutting and roughing tool I4 is a work support I8 which is arranged to present the heel portion of av shoe having an attached outsole to thev cutting and roughing tool I4 with a combined, transverse, heightwise and tilting movement so as to form thereon a roughened heel seat which is shaped complementally to the attaching face of a heel member forthat shoe. Referring to Figs. 3 and 10 it will be seen that the work support I8 isv made up of an assembly of parts which con- 'I'hese and other features of the invention, in-

. cluding certain details of construction and combinations of parts will be disclosed in the following detailed description of the illustrated mat chine and will be pointed out in the appended lclaims. Referring now to the accompanying drawi 4 ings,

Fig. 1 is a front elevation of a machine em-v bodying this invention;

Fig. 2 1s a side e1evatinn, with certain parts 1 broken away, of the machine shown in Fig. l1, the view being taken from the left side of that l machine;

Fig. 3 is a sectional view taken along'the line Fig. 4 is a sectional view taken along the line Iv-Iv of Fig. s;

Fig. 5 is a sectional view taken along the line Fig. 6 is a side elevation of the upper portion- Fig. 8 isa plan view Fig. 9 is a sectional view taken along the line IX-IX of Fig. 3, looking in the direction of enlarged scale showing the parts which go to III-III of Fig. 1, looking in the direction of i the arrows;

l V-V of Fig. 3, illustrating'the arrangement of l the cams which control the heightwise and tilting movement of the work support;

` of the machine shown in Fig. 1, the view being 1 taken from the right side of that machine; Fig. 7 is a top plan view looking down on the machine disclosed in Fig. 1, a part of the casing l being broken away to show the underlying cutting and roughing tool;

taken along the line VIII-VIII of Fig. 2, looking in the direction oi.' the arrows and illustrating, among other fea- `tures, the construction of the shoe. clamping means;

make upthe work supporting unit and the cams e u in the name of J. C. Jorgensen to which reflof thatunit;` v

sist generally of a supporting member I8 4slidably mounted in ways 20 formed on the front end of the rectangular casing I 0, a carrier 22 pivoted on the supporting member I8, a frame 24 tiltably connected to the carrier 22, and a plate 28 slidably connected to the frame 24, the plate 28 having mounted thereon shoe gripping means and being arranged to present the shoe to the cutting tool. v

As is best shown in Figs. 3 and 8, the shoe gripping means mounted on the plate 28 consists of a exible heel band 28 made of leather or the like which has its upper end shaped for seating engagement in the rand or crease formed by the upper and the welt or outsole of a shoe so that the heel band will support the overhanging marginal extension of the sole against the action of the cutting and roughing tool I4. The heel vband 28 is supported at ltsjrearward end (Fig. 3) by a bracket 30 which is connected to the plate 26 by a bolt 32, and at its forward ends (Fig. 4) by

clips

34, 36 which are connected respectively to the ends oi' pivoted levers 3 8, 40

(Fig. 10) mounted on the plate-26.

The heel band 28 is pressed against the heel portion of a shoe by a -chain-like clamping device having two series of blocks which are arranged to press inwardly against the band. Each series ofblock (Fig. 8) consists of a group of

members

42, 44, 46, 48' pivotally connected to one another with the end member 42 of each erence may be had for-a more detailed descrip-l aaeasu tion of the construction and operation of the same.

Operation of the chain-like clamping device is effected by a manually operable lever 60 (F18. 8) which is connected to the bell crank lever 54 by a link 58 and to the bell crank lever 62 by a linkage system consisting of a link 60 that extends across the back of the heel band 2l, a lever 62 pivoted to the link 60, a link 64 pivoted at one end to the lever 62 and at its other end to a lever 66, and a link 68 which interconnects the lever 66 and the bell crank lever 52. The

levers

56, 62 and 66 are mounted respectively. on

anges

14, 16 and 18 which project outwardly from the sides of the frame 24.

There is an appreciable variation in the configuration of different shoes resulting from different causes such, for example, as the angular. difference in the. median line of right and left shoes, hence different shoes will be presented to the work support in different positions so as properly to locate the rear ends of the shoes with respect to the cutting and roughing tool I4. 'I'he operating mechanism for the heel band 28 must be able to move the sides of the band diiferential amounts so as to clamp the shoes in the position in which they are presented to the machine; otherwise the proper relation between the work and the tool will be disturbed and improperly shaped heel seats will result. This means that when one side of the heel band 28 engages a shoe before the other one, the band operating Amechanism must be able to continue moving the free side of the band 28 inwardly until it too contacts the shoe and thereafter to press both sides equally against the shoe. The required differential operation of the heel band operating mechanism illustrated in Fig. 8 is effected by providing a floating mounting for the hand lever 56, the mounting consisting of a pivot pin 10 which extends through an elongated slot 12 in the lever 56 into engagement with the ange 14. Thus. when the hand lever 56 is operated to clamp the heel band 28 about a shoe and one side of the band contacts the shoe before the other, the resistance offered by the contacting side will cause the lever 56 to shift bodily with respect to the pivot pin 10 until the other side of the band 28 engages the shoe, after which the hand lever will again turn about the pivot pin 10 and will apply equal pressure to both sides of the band 2'8. The lever 56 is held in its adjusted position by the engagement between a pawl 80 mounted on the lever and one of the ratchet teeth 82 on an arm 84 which projects outwardly from the frame 24.

The toe end of a shoe clamped in the heel band 28 is supported by a toe rest 88 (Fig. 3) carried by a plate 86 which is fastened to the arm 84 (Fig. '7). The toe rest 88 is connected to the plate 86 (Fig. 3) by a slotted angular member 90 which is fastened to the plate 86 by a screw 92 (Fig. 3) and a slotted toe rest carrier 84 which is clamped to the upstanding arm of the angular member 90 by a screw 96.

Adjustably mounted on the toe rest can'ier 84 are a pair of toe gage pins 98, |00 (Figs. 2' and '1) which, in conjunction with the back of the heel band 28, are arranged properly to locate the or a left.y The toe gage pins 88, |00 are connected, respectively, to nuts |02, |04 (Figs. 1 and 7) which in turn are mounted on oppositely threaded portions of a screw |06 journaled on the toe rest carrier 84. Adjustment of the pins 88, |00 is eifected by the operation of a crank |08 fast to the screw |06, the operation of the screw |06 causing the nuts |02, |04 together with the pins 88, |00 carried by them to move toward or away from one another depending upon the direction of rotation of the crank |08.

The carrier plate 26 (Figs. 3 and 10) which supports the heel band 28 is mounted for adjustment backwardly or forwardly in a lengthwisel direction so as properly to position the heel band with respect to the cutting and roughing tool I4 for operations upon shoes of diil'erent sizes. As is best shown in Fig. 10, the carrier plate 26 is provided with wedge shaped edges 21 which are slidably received in complementally shaped grooves 25 formed in the upper portion of the frame member 24. The plate 26 is moved backwardly and forwardly in the grooves 25 by the rotation of a pinion I I0 (Fig. 3) which meshes with a rack I I2 fastened to the under side of the plate 26. The pinion I|0 is mounted on a shaft III journaled in the frame 24 beneath the plate 26, one end of the shaft ||I extending beyond the side of the frame and having attached thereto a crank arm II4 (Figs. 2 and l0). 'I'he crank arm I I4 is provided with a detent I I5 for holding the arm in its adjusted position and a finger I6 that overlies a scale ||8 on the side of the frame, the scale being calibrated in accordance with variations in shoe lengths so that the heel band 28 may be adjusted quickly to the proper position for the shoe which is to be operated upon. It will be noted that the shoe gripping and supporting devices, including the heel band 28, the chain-like clamping device and its actuating mechanism, the hand lever 56, the arm 84 and the toe rest assembly attached thereto, are all mounted on the frame 24 so that they move with the frame and do not hinder its operation.

The frame 24 is adjustably supported on the carrier 22 (Fig. 10) by a connection which consists of arcuate grooves I 20, |22 in the lower portion of the frame 24 which receive complementally shaped ribs |24, |26 that project laterally from the sides of the carrier 22. The frame 2'4 is urged in a forward direction, as viewed in Fig. 3, by a spring |28 which is connected at one end to the carrier 22 by a screw |30 and at its other end to a hook |32 which is fastened to a transversely extending plate |34 on the rear end of the frame member 24. Relative movement between the frame 24 and the carrier 22 causes the arcuate groove surfaces |20, |22 on the frame 24 to ride along the complementally shaped ribs |24, |26 on the carrier 22 thereby tilting the frame 24 with respect to the cutting and roughing tool I4, the tilting movement of the frame being in the direction of the longitudinal axis of a shoe carried by it. Movement of the frame 24 toward the carrier 22 is caused by the action of the spring |28 while movement of the frame away from the carrier is effected by the action of a cam |66 (Fig. 3) upon a roller |36 carried by an arm |38 which depends from the lower portion of the frame 24. 1

The work support I6, in addition to its capacity for tilting movement with respect to the cutting and roughing tool I4 resulting from the construction just described, is also adapted by the following connections for movement both transverselyof the tool and heightwisewith respectV to it. At its forward end the carrier 22 is pro- .vided with a pair of spaced iianges |40, |42` (Fig.

3) having alined openings for the receptionof a pivot pin |44 which is secured in a sleeve |46 on the end of an arm |48 that projects upwardly from the supporting member-I8. Thespacing `between the anges |40, |42 is greater than the width of the sleeve |46 so that the carrier 22 can move inr a, heightwise direction as it is swung about the pivot pin |44. f Heightwise movement ofdzhe carrier 22 is caused by the action of a cam |64 upon a roller |50 mounted on-a -pin |52 which is connected topartitions |54, |56 on the carrier 2'2. The work support is moved back and "forth past the cutting and roughing tool I4 about thev pivot pin |44 as a center by a driving mechanism (to be' described later) which is connected to a crank arm |60 on the carrier 22 by a link |58.

. The cutting and roughing operation performed by this machine is for the purpose of preparing a heel seat o n the outsole of a shoe for cementing the same to the attaching face of-a heel member for that shoe. In order that the cement at` taching operation be effective, the grain surface of the heel seat must be roughened completely across the heel seat portion of the outsole so that it will take the cement, and inaddition the surheel seat merge into one another and form a heel seat surface which is complemental to thejattaching face of the heel member. If it were not for the tilting action between the work support and the cutting and roughing tool I4. the flare on the rear portion of the tool which produces the slope in the section A-B, would cut too deeply into the rear portion of the heel seat and remove it approximately along the line F of Fig. 14.

The heightwise and tilting movements of the work support I6 are effected by the action of the cams |64, |66 (Figs. 3, 5 and 10) upon the roller |50 mounted on the carrier 22 and the roller |36 carried by .the frame 24. Thus, 4as the link |58 moves to the left, as viewed in Fig. 2, it causes the carrier 22f and the work support assembly mounted thereon to move in a clockwise directionabout the pivot pin |44 thereby carrying the heel portion of a shoe member mounted thereon Apast the cutting and roughing tool I4. While the shoe is being moved past the cutting and rough- 'ing' tool I4, the roller |50 rides downwardly and face of the heel seat face must be vshaped comy plemental to the attaching face of the heel member-so that a maximum bond will be obtained As the attachl ing faces of heel members 'are customarily between Athe cemented surfaces.

formed with-dished surfaces which slope downwardly from their peripheral edges, a complementally shaped heel seat surface must be formed bythe operation of this machine.

Heel seats having the desired configuration are fitted in this machine by moving the work support past the cutting andv roughing tool I4 with a combined transverse heightwise and tilting movement. Therheightwise movement of the' work support as it passes transversely under the cutting and roughing Atool I4 causes the forma- .tion of the desired convex surface in the forward portion'of the heel seat, and as the transverse movement of the work support takes place about the pivot pin |44 as a center, alconvex heel breast engaging shoulder vis formed which ex- 1 tends toward the rear endof the shoe. The tilting movement of the work support in conjunction with the outwardly flared rear end of the cutting and roughing tool |4 (Fig. 3) causes the formationof a downwardly sloping marginal surface about the rear end of the heel seat which merges f into the sloping sides of the forward portion ofl the Iheel seat. The outwardly ared rear portion of the tool I4 cannot by itself form the desired; marginal slope about the rear end of the heelv seat due tothe variations both inthe abruptness and the width of vthe slope in this section of the heel seat. This will be appreciated by referring to Fig. 14 where it will beseen that the sloped i surface in the section A-B-E is narrower and hence more abrupt than at To meet this supporting member I8 and is adjusted Ain a condition the iiare' in the tool is 'made' suiiiciently l abrupt to produce the desiredslope in the areal C-B-E and as the operation progresses across the heel the work support is tilted downwardly away from the tool thereby decreasing the abruptness of the slope formed by it as theoper- 1 ation. moves -.to the portion of extreme width l l D-E, after which the tilting motionof thework l support is reversed. With this arrangement the sloping surfaces of the diierent portions' of .the

then upwardly in the recess I 60 (Fig. 9) formed in the cam |64 thus moving the carrier 22, to-

gether with the work support assembly mounted thereon, downwardly and upwardly to form the desired transverse convex shape to the forward portion of the yheel seat. As the rear portion` of the heel seat is movedV past the cutting andv roughing tool |4, thevrollerA |36 on the frame member 24 (Fig. 9) enters a recess |10 formed heightwise direction by 'an underlying screwV |14 threaded into a projecting flange |161 on the supporting member I8. The post |12 is provided with a head |18'(Fig. 3) to which the cam |65 is fastened by'a bolt |80 and in which isformed Ways which slidably receive the wedge shaped base of the cam |64. Y

Inasmuch as the median lines of right and left shoes diverge, the timing of the heightwise move- Y ment of the work support must be varied to meet the requirements of the shoe being operated upon. To this end, means are provided for shifting the cam |64, which controls the heightwise movement of the work support, to adjust the timing of the heightwise movement of the work support so as to adapt the machine for operations upon right or left shoes. The cam shifting means (Fig. 9) consists of a lever |62 which is pivoted at |84 to an arm I 86 that projects out from the supporting member I6 and is connected to the cam |64 by a link |88. The cam shifting lever |82 is movable betweenstopsvISU, |92 on the arm |86 which are positioned to locate the cam |64 properly for operations upon right and left shoes. The coniiguration of the rear ends of heel seats of right and left shoes are so nearly alike that the timing of the cam- |66 need not be modiiied for operations upon the different shoes.

The cutting and roughing tool I4 is mounted on a. shaft 200 (Fig. 3) which is journaled in a bearingv202 fastened to the upper end of the post I2. The tool isenclosed in a housing 204 carried by a plate '206 which isattached to the bearing 202,

the top of the housing having an opening 208 (Fig. 3) formed therein over the tool I4 through which is drawn dust and leather particles by a conventional suction device. Pivoted on the front of the housing 204 is an inspection plate 2I0 (Figs. 3 and 6) which may be raised to permit an end of the blades 2I8, as viewed in Fig. 3, being dared outwardly for fitting the rear portions of heel seats. The hub member 220 is fastened to the end of the shaft 200 while the hub member 222 is slidably but non-rotatably connected thereto by a spline 224 and is adjustable in a lengthwise direction so as to increase or decrease the length of the effective cutting face of the tool to adapt it for fitting heel seats of different sizes. 'I'he blades 2I6, 2 I8 are formed with saw-toothed edges so that they will roughen the heel seat surface as they remove the material.

Adjustment of the cutting and roughing blades 2I8 is effected by a shifting fork 226 (Fig. 3) which is connected by a pin 228 tothe hub member 222. The shifting fork 226 is mounted on a shaft 230 which is pivoted in the housing 204I and is connected at one end to an adjusting lever 232 (Fig. 2). The opposite end of the adjusting lever 232 is provided with a clamping screw 234 (Figs. 2 and 7) which extends through and engages' the back of a slotted arm 236 attached to the supporting plate 206 so that once the desired adjustment of the cutting and roughing blades 2I8 has been obtained it may be held indenitely by tightening the clamping screw 234 to clamp the lever 232 against the slotted arm 236. In order that the knives may be quickly adjusted for operation upon work of any specified size, a convenient scale 238 (Fig. 2) may be formed on or attached to the slotted plate 236 in cooperative relation with an indicating finger 240 on the adjusting lever 232.

An alternative form of adjusting means for the blades 218 is disclosed in Figs. 12 and 13 where a crank arm 400 is connected to the shaft 230 by spiral gears 402, 404, the crank arm 400 being provided with a conventional detent pin 406 for holding it in its adjusted position.

The loading position of the work support is on the left side of the machine as Viewed in Fig. 1 and suiliciently below the cutting and roughing tool I4 to give the operator free access to the work support. After a shoe has been clamped in the work support while in its loading position, the supporty is raised to a starting position and is then moved past the cutting and roughlng tool I4 in the manner described above. It is important that the starting position to which the work support is moved be located correctly with respect to the point of operation of the'\ cutting and roughing tool because if it is too high an excessive amount of material will be removed as the shoe is moved past the tool I4 thereby ruining the shoe, while if it is not high enough an insufficient amount of material will be removed and an unsatisfactory job will result.

In the form of the invention shown in Figs. 1,

2, and '1, the starting position of the work support is determined by a gage 242 (Figs. 1 and 2) which is mounted on the side of the housing 204 above the work support loadingposition where it will engage the heel portion of a shoe clamped in the work support as the support is raisedl from its loading position. The gage 242 consists of a heel engaging plate 244 (Fig. 1) having spaced

ribs

246, 248 which contact the opposite sides of the heel portion of an outsole on a shoe in the work support. The heel plate 244 is connected to a plate 250 which is slidably mounted in ways 252 (Fig. 2) on the side of the housing 204. Adjustment of the heel gage is determined by a screw 254 which passes freely through an opening in a plate 256 mounted on the side of the housing 204 and is threaded into the plate 250.

As the heel seat portion of an outsole is convex in cross section, the heel gage 242 has to be raised after each gaging operation to permit the high central porti-on of the heel to pass beneath the rib 248 on the heel plate 244. Heightwise movement of the heel gage 242 .between its gaging position and an out-of-the-way position is quickly and easily effected by a spring 258 which is interposed between the plate 256 and the head of the screw 254 Vand urges the heel gage upwardly toward its out-of-'the-way position, and by a cam 260 which overlies the screw 254 (Fig. 2) and is arranged to force the gage assembly down into the gaging position. The cam 260 is mounted on a shaft 262 journaled on the housing 204 to the left of the slide 250, as viewed in Fig. 2, and is urged in a clockwise direction, as viewed in Fig. 7, by a spring 264 (Fig. 2) which surrounds the shaft 262. Movement of the shaft 262 in a clockwise direction is limited by the engagement between an arm 266 fastened to the lower end .of the shaft 260 and an-abutment 266 on the housing 204. Whenl the arm 266 contacts the abutment 268 the upper portion of the inclined surface of the cam 260 overlies the screw 254 permitting the spring 258 to hold the heel gage 242 in its raised position.' Movement of the heel gage down to its gaging position is effected by rotation of a hand crank 21!) on the cam 260 in a counterclockwise direction (Fig. 7) which moves the downwardly inclined surface of the cam 260 over the head of the screw 254 depressing the screw and the heel gage assembly connected thereto. When the gaging operation is completed the handle 210 is released allowing the spring 264 to move the cam 260 back to its original position so that the spring 258 can raise the heel gage 242.

An alternative form of heel gage is shown in Figs. 12 and 13. This heel gage consists of a curved arm 212 which extends outwardly from a plate 214 and has projecting downwardly from its free end a cylindrical work engaging member 216. The work engaging member 216 is arranged to contact the downwardly sloping portion of the heel end of an outsole on the side of the high central portion which is away, from the cutting and roughing tool I4 so that once the correct height of the work support has been determined the shoe may be moved away from the member 216 in the direction of the tool without hindrance from the gage thus avoiding thefnecessity of moving the gage to an inoperative position. The plate 214 is slidably mounted in ways 218 on the side of the housing 204 and is adjusted in a heightwise direction by a. screw 280 which passes through a flange 282 nxed to the housing 204 and into threaded ensagement with the plate 214.

The heightwise movement of the work support I6 is controlled by a hand lever 284 (Figs. 1 and 6) which is connected to the supporting member |8 for the work support by a shaft 286 mounted in the housing I0, a crank 288 on the shaft 286, and a link 280 interconnecting the crank 288 and the supporting member I8. The supporting member I8 is urged in an upward direction by a heavy spring 282 (Figs. 2 and 3) which is connected at one end to the housing and at the other end to a crank arm 284 on the shaft 286. 'I'he spring 282 is strong enough to raise the work support from its loading to its starting position soy that allan operator need do to effect this movement is to hold the detent 286 on the hand lever 284 out of engagement with the rack 288 and the spring will raise the support. The advantage of this arrangement is that the work is pressed against the heel gage with the same force. each time the work support is raised, thereby insuring that the support is adjusted exactly to the desired starting position. manual operation of the hand lever 284 was relied upon to raise the work support, as distinguished from spring operation, that different raising pressures were exerted by different operators with the result that the shoe was more or less deformed when pressed against the heel gage and variations in the height of the starting position of the work support resulted. Once the adjustment of the work support has been made,

the-supporting member |8 is heid in that position cutting and roughing tool are both effected bya` motor 300 (Fig. I2) mounted in the base of the machine, the cutting and roughing tool being continuously driven by a belt 802 extending between a pulley 804 mounted on the end of the tool shaft 200 and a pulley 306 on the motor shaft. The

In the illustrated machine the shoe, after being properly adjusted by the heel gage, is traversed past the cutting and roughing tool and thence back to its position beneath the gage after which it is lowered to the unloading position. It is desirable that the return movement of the work support be automatically stopped directly beneath the heel gage so that no time will be lost in adjusting the support with respect to the heel gage before the support is raised to its starting position at the beginning of the next operation.

-The automatic stopping of the work support beneath the heel gage at the completion of the rethe crank arm |60 on the carturn movement is effected by the clutch mechanism 820 which will now be described. Referring to Figs. 1, 2, "l, and 8 it will be seen that the clutch mechanism 820 consists of a lower clutch plate 822 which is connected to the driven gear 8I8 and an upper clutch plate 824 which is coupled to the rod |58. The driving connection between the upper and lower clutch plates consists of a pin 325 which is pivoted near the end of an arm 326 on the upper clutch plate 324 (Figs. 2 and 7) and is urged downwardly by an overlaying spring 321 into engagement with one of a series of recesses 330 on the upper face of the continuously rotating lower clutch plater322. Pivoted beneath and to one side of the clutch plates 322, 324 (Fig. 1) is a bell crank lever 332 having a cam 334 which raises the pin 325 out of the recess 330 in which it was seated when the shoe arrives beneath the heel gage on its return movement and thereby disconnecting the drive to the work support.

The clutch mechanism'320 is also provided with means for preventing further movement of the work support after the clutch plates have been disconnected by the cam 334. This means consists of a stud 335 (Fig. 2) mounted on the end of the clutch plate arm 326, the lower end of the stud 335 being arranged to seat itself in a recess 356 (Figs. 1 and 8) formed in the upper face of a boss on the rearwardly extending arm of the bell crank lever 332. The seating of the stud 335 in the recess 356 occurs in the following manner. As the clutch plate arm 326 passes over the cam 324 and the pin 325 is being raised, the lower end of the stud 335 passes over an inclined face 355 (Fig. 8) on one of the walls which form the recess 356 and forces the bell crank lever 332 downwardly a slight amount against the pull of a spring 350 which extends between an arm 354 on the bell crank lever and a fixed lug 352. As the stud 335 passes over the recess 356, the spring 350 pulls the lever 332 back and seats the stud in the recess. The pin 325 is raised out of the recess 330 in the lower clutch plate in which it is seated before the stud 335 is seated in the recess 356 in the bell crank lever 332 so that this engagement between the stud and the bell crank lever will hold the work support against movement transversely of the cutting and roughing tool until the bell crank lever 332 is depressed during the next operation of the machine.

When a new piece of work has been placed in the work support and the support moved to its starting position, the

clutch plates

322, 324 are again interconnected by depressing a treadle 336 (Fig. 2) which rotates the bell crank lever 332 sufficiently in a clockwise direction, as viewed in Fig. 1, to release the stud 335 and the pin 325 allowing the latter to drop into one of the recesses 320 in the lower clutch plate 330.

The operation of the bell crank lever 334 by the treadle 336 is effected through a linkage system consisting of a link 340 (Fig. 2) which connects the treadle 336 to a crank arm 342, a pivoted cross shaft 348 (Fig. l) connected at one end to the crank arm 342 and at its other end to a crank arm 344, and a second link 346 which is connected at its lower end to thefcrank arm 344 and at its upper end to a hook 341 depending from the rearwardly extending arm of the bell crank lever 332. After the Atraverse of the work support past the cutting and roughing tool |4 has been initiated by depressing the treadle 336, the treadle is released and is raised by a spring 338 (Fig. 2) allowing the spring 350 to move the bell crank lever 332 back to its upright position where it will stop the work support at the end of the return movement of the support.

An alternative actuating mechanism forthe heel band 28 is disclosed in Fig. l1. In the construction shown in this figure the

levers

38, 40, 52 and 54 correspond to the similarly-numbered levers shown in Fig. 8, and the chain-like clamping device which is operated by the

levers

52, 54 together with the heel band have been omitted for the sake of simplicity. The bell crank levers 52, 54 are operated by a piston 360, the piston 360 being connected to the bell crank lever 54 by an equalizing lever 362, which is connected at its lower end to an intermediate lever 364 by a link 386, the lever 364 in turn being connected to the bell crank lever 54 by a link 368. The connections between the piston 360 and the bell crank lever 52 consists of a U-shaped link 310, which is connected at one end to the equalizing bar 362 and at its other end to an arm of a bell crank lever 312, the other arm of the lever 312 being connected by a link 314 to a second bell crank lever 316 which in turn is connected to the bell crank lever 52 by a link 318. The piston 360 is mounted in a cylinder 380 and is moved to the right, as viewed in Fig. 1, to press a heel band (not shown) about a shoe by a hydraulic system which will now be described.

The hydraulic system consists of a pump 382 which forces oil or other suitable liquid from a reservoir 384 through a conduit 385 to a conventional three-way valve 388. From the three-way valve 388 the liquid passes through a conduit 390 to the cylinder 380, thereby causing the piston 360 to move to the right, as viewed in Fig. 1, forcing the sides of a heel band (not shown)v toward one another. When it is desired to release the heel band, the valve handle 389 is moved to its relief position allowing the uid in the cylinder 380 to escape through

conduits

390, 392 back into the reservoir 384. While the valve handle 389 is set in its release position, a pressure relief valve 386 connected to the conduit 385 allows the fluid, which is being circulated by the continuously operating pump 382, to escape back into the reservoir 384 through a conduit 394. The hydraulic system is provided with the usual gage 396 which indicates the pressure of the circulating fluid.

gage pins 98 or |00, depending upon whether it is a right or a left, and the hand lever 56 is operated to clamp the heel band against the shoe.

Having clamped the shoe on the work support the pawl on the hand lever 284 is released allowing 1 l the spring 292 to move the work support upwardly to its starting position where the heel portion of the shoe abuts the heel gage. If a heel gage of the type disclosed in Fig. 2 is used the operator then releases the handle 210 allowing the spring 258 to raise the gage to its out-of-the-way position and as he releases the handle 210 he depresses the treadle 336 to release the clutch pin 325 and the stud 335. The upper clutch plate 324 will then be rotated through 360 shifting the link |58 backwardly and forwardly causing the work support to move transversely past the cutting and roughing tool |4 and thence back beneath the heel gage. As the heel end of the shoe is moved past the cutting and roughing tool the cam |64 causes the work support to move rst downwardly and then upwardly so as to give the -port will be held beneath the gage.

heel seat the desired convex formation in cross section and as the rear portion of the. heel seat is passing the tool the cam |66 allows the work support to tilt downwardly away from the tool sufficiently to form a downwardly and outwardly extending surface in the peripheral portion of the rear end of the heel seat which merges with the downwardly and outwardly extending peripheral portion of the sides of the heel seat. A preferred form of adjustment of the cam |64 is one that will cause the cutting and roughing tool to operate completely across the surface oi the heel seat so as to scarify the same and prepare it for the application of an adhesive. If it is desired to cut deeply enough into the heel seat to form a shoulder across the breast line, thelocation of the starting position of the work support is raised an amount equal to the desired height of the shoulder by rotating the heel gage adjusting screw 254. Inasmuch as the work support is moved about the pivot pin |44 the shoulder formed at the breast line will have a convex shape which projects back toward the rear end of the shoe.

When the work support returns beneath the heel gage, the cam 334, which has meanwhile returned to its upright position, will raise the clutch pin 325 thereby disconnectingv the

clutch plates

322, 324 and the stud 335 will be seated in the recess 336 in the rearwardly extending arm of the bell crank lever 332 so that the work sup- The operation upon the heel seat being completed, the operator moves the lever 284 in a counterclockwise direction, as viewed in Fig. 6, so as to lower the work support to its loading position where the shoe which has been operated upon is removed.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent of the United States is:

1. A heel seat tting and roughing machine comprising a cutting and roughing tool, a work support, and means for causing such relative movement between said tool and the work support that the tool removes material from substantially all of the surface of the heel seat portion of an outsole on the work support and shapes a heel seat complementally to the attaching face of a heel for that shoe and concomitantly roughens the heel seat face to prepare it for the application of an adhesive.

2. A heel seat fitting and roughing machine for operating upon a shoe having an attached outsole comprising a cutting tool, a shoe support, means for effecting relative transverse movement between the shoe support and the cutting tool to cause the tool to operate on the sole from one side of the heel seat portion to the other, and means for eiecting relative tilting movement between the cutting tool and the support as the operation progresses transversely across the heel seat to shape the rear end of the heel seat.

3. A heel seat tting and roughing machine for operating upon a shoe provided with an outsole having, in combination, a support for said shoe, a

cutting and roughing tool arranged for operation upon the rear portion of the outsole, and means including cams for causing relative transverse, heightwise and tilting movements between the tool and the shoe support to form on the outsole a roughened heel seat shaped complementally to the attaching face of a heel for that shoe.

4. A heel seat fitting and roughing machine for operating upon a shoe provided with an outsole having, in combination, a cutting and roughing tool mounted for rotation about a xed axis, a support for said shoe, and means for moving the heel end of said shoe support transversely across the rotary tool with a combined oscillating and tilting movement in such directions as to form on a shoe on the support a roughened heel seat shaped complementallyto the attaching face of a heel for said shoe.

5. A heel seat tting and roughing machine for operating upon a shoe provided with an outsole having, in combination, a cutting and roughing tool, a work support, means for moving the work support past said tool in an arcuate path so as to form a curved shoulder on the heel portion of the outsole, and further means for causing a combined heightwise and tilting movement of the support as the shoe passes the point of operation of the tool to form a roughened heel seat surface having a tapering peripheral edge portion which slopes outwardly and downwardly from the central section of the heel seat.

6. In a heel seat tting and roughing machine, a rotatable cutting and roughing tool comprising cutting and roughing members adjustable in a lengthwise direction for varying the length of the cutting surface in accordance with the lengthwise dimensions of the heel seat which it is desired to form, and a work support arranged to present the heel portion of a shoe to said cutting and roughing tool.

7. In a heel seat fitting and roughing machine,

ya cutting and roughing tool comprising interspaoed blades, one of said blades increasing in width toward an end thereof which is arranged to operate upon the endv portion of a heel seat, means for adjusting said blades in a lengthwise direction to adapt said tool to form heel seats of diierent sizes, a work support for presenting the heel portion of a shoe to said tool, and means for causing relative movement between the tool and the work support to form on a shoe a roughened heel seat surface shaped complementally to the heel attaching face of a heel for said shoe.

8. A heel seat fitting and roughing machine for operating upon shoes provided with outsoles comprising in combination, an operating tool, a shoe support including a portion arranged to engage the heel end of a shoe, and means for moving the heel end engaging portion of the shoe support past the operating tool with a combined transverse, heightwise and tilting motion thereby to move the heel seat portion of a shoe in the support across the tool and form thereon a roughened heel seat shaped complementally to the attaching face of a heel for the shoe.

9. A heel seat fitting and roughing machine for operating upon shoes provided with outsoles comprising in combination, a cutting and roughing tool, a shoe support including a portion'arranged to engage the heel end of a shoe, shoe support operating means arranged to move the heel end engaging portion of the support transversely past the tool so as to carry the heel seat portion of a shoe supported thereon across the tool, and cam means for tilting the shoe support in a direction lengthwise of the shoe as the shoe `is moved transversely past the tool.v

10. A heel seat fitting and roughing machine for operating upon shoes provided with outsoles comprising in combination, a cutting and rough` ing tool, a shoe support including a portion arranged to engage-the heel end of a shoe, shoe support operating means arranged to move the heel end engaging portion transversely past the tool so as to carry the heel seat portion of a shoe on the support across the tool, and means for modifying the transverse movement of the work support to cause the support to move in a heightwise direction and to tilt in a direction lengthwise of the shoe as it moves past the tool thereby to shape a roughened heel seat which is complemental to the attaching face of a heel for the shoe.

11. A heel seat fitting and roughing machine for operating upon shoes having attached outsoles comprising an operating tool, a work support, means for moving the work support transversely past the operating tool, cam means associated with said work support for causing heightwise and tilting movements of the support as it passes the point of operation ofthe operating tool, and cam adjusting means for adapting the cam means for operations upon right and left shoes.

12. In a heel seat fitting and roughing machine, a cutting and roughing tool, shoe supporting means arranged for movement past said tool, said shoe supporting means comprising a shoe gripping device and a pivoted supporting member upon which said shoe gripping device is adjustably mounted, means for rotating the pivoted support to move it past said tool, and cam means for causing heightwise and tilting movements of the shoe gripping device as it passes the point of operation of the tool.

13. In a heel seat fitting and roughing machine,

a cutting and roughing tool, shoe supporting means comprising a shoe gripping device and a pivoted support upon which said gripping device is adjustably mounted, means for rotating the pivoted support to move a shoe past said tool, and means for moving the shoe gripping device relatively to the pivoted support so as to tilt the shoe in its lengthwise direction as it moves past the tool.

14. In a heel seat fitting and roughing machine, a cutting and roughing tool, a pivoted support having a shoe gripping device mounted thereon, means for moving said support transversely past said tool, and cam` means for moving the support in a heightwise direction as it passes the tool.

15. In a heel seat fitting and roughing machine,

a cutting and roughing tool, a shoe gripping device, a pivoted support adjustably connected to the shoe gripping device, means for rotating said support past said tool to present the heel portion of a shoe to the tool, a cam arranged to move said support in a heightwise direction as the shoe moves past the tool, a second cam arranged to move the shoe gripping device relatively to the pivoted support to tilt the shoe in a lengthwise direction as the rear portion of the shoe passes the tool, and means for adjusting the second cam to adapt its action for operations upon right and left shoes.

16. In a machine for operating upon lasted shoes prior to the attachment of heels thereto, a flexible clamping band arranged to extend around the heel portion of a shoe, a chain-like clamping device also arranged tn extend around the heel portion of the shoe and located on the outside of said band for pressing the band against the shoe, levers connected respectively to the opposite end portions of the clamping device, and a manually operable lever located at one side of the clamping means arranged to operate said levers to tighten the chain-like clamping device about the band,

said manually operable lever having a iloating mounting whereby said lever will apply an equal pressure to the operating levers connected to the clamping device.

17. In a machine for operating upon shoes prior to the attachment of heels thereto, a flexible band arranged to extend around the heel end of a shoe to grip that portion of the shoe, a chainlike clamping device also arranged to extend around the heel end of the shoe and located around the outside of the band for pressing the band against the shoe, levers positioned at the opposite sides of the clamping device for tightening said device about the band, operating means including a force equalizing member for applying pressure to said levers, and hydraulic means for actuating said operating means.

18. A shoe machine having an operating tool and a work support arranged for movement relatively to each other, said work support including clamping means arranged to engage and clamp the counter portion of a shoe, and plural gaging means disposed in cooperative relation to the clamping means and arranged to be engaged alternatively by one side or the other of the forepart of the shoe, according to whether the shoe is right or left, to determine a right or left position, respectively, of the shoe on the support prior to the tightening of the heel clamping means.

19. In a heel seat tting machine, an operating tool and a work support arranged for movement relatively to each other, said work support including a ilexible band arranged for gripping engagement with the heel end of a shoe, gaging means disposed in cooperative relation to the flexible band, said gaging means comprising gaging pins arranged for engagement with right and left shoes respectively, and means for adjusting said gaging pins.

20. A machine for operating upon a shoe provided with an outsole having, in combination, an operating tool, a work support arranged to present the sole to the operating tool, means for moving said work support from a starting position which is spaced from the operating tool transversely past the tool to a stopping position, and a cycle control for said operating means for stopping the work support when it reaches the stopping position.

21. A heel seat tting and roughing machine for operating upon a shoe provided with an outsole having, in combination, a cutting and roughing tool arranged to operate on the heel portion of a shoe, a shoe support, means for causing relative movement between the cutting and roughing tool and the shoe support in such directions that the tool forms a roughened heel seat on the outsole, and a cycle control for said operating means arranged to stop the relative movement between the tool and the support at a predetermined position at the end of each operation.

22. A heel seat tting and roughing machine for operating upon a shoe provided with an outsole having, in combination, a cutting and roughing tool, a work support arranged for movement past said tool, means for moving said work support from a starting position, which is offset from said tool, past the tool with a combined swinging and tilting action so as to shape a roughened heelseat on the outsole of a shoe on the support, and a cycle control for the operating means arranged to stop the work support at a predetermined position at the end oi each operation.

23. A heel seat fitting and roughing machine for operating upon shoes provided with an outas to swp the work support at the same position each time.

24. A machine as dened in claim 23 in which locking means are arranged in cooperative relation with the operating means and become eiiective upon disconnection of the clutch to prevent transverse movement of the work support while the clutch is disengaged.

25. A heel seat Iltting and roughing machine for operating upon a shoe provided with an outsole having, in combination, a cutting and roughing tool, a work support arranged r'or movement past said tool, means including a clutch for moving the work support from a starting position which is oiset from the cutting and roughing tool past said tool with a combined transverse heightwise and tilting movement to shape a roughened heel seat and back to the starting position, and automatically operable means for disconnecting said clutch when the work support is returned to its starting position.

26. A machine for operating upon shoes having, in combination, an operating tool, a work support arranged for movement from a loading position which is located at one side of said tool upwardly to a starting position and thence past the tool, a gage overlying the loading position of the work support and arranged to engage the shoe on the work support 'as it is moved upwardly from the work support, operating means for moving the work support past the tool and back to the starting position, and a cycle controller for the operating means arranged to stop the work support beneath the gage.

27. In a machine for operating upon shoes, an operating tool, a work support constructed for movement in a heightwise direction from a loading position to a starting position, gaging means for determining the extent of the heightwise movement of the work support so as to correlate the starting position with the point of operation of the operating tool, and means for moving the work support from the starting position past the operating tool.

28. A machine for operating upon shoes comprising an operating tool, a work support mounted for reciprocating movement in a heightwise direction from a loading position to a starting position from which it is moved transversely past the operating tool, and a gaging member arranged to contact the heel portion of a shoe on the work support so as to correlate the starting position with the point of operation of the operating tool.

29. A machine for operating upon the heel portion of a shoe comprising an operating tool, a work support arranged for heightwise movement from a loading position to a starting position from which it is moved transversely past the operating tool, and a gage arranged for engagement with the heel portion of a shoe on said support so as to correlate the heightwise position to which it is moved with the point of operation of the operating tool, said gage being arranged to contact the side of the heel portion away from the operating tool whereby the sole member can v tion of a shoe on the work support as it is moved upwardly to the starting position, said edge gage being adjustably mounted on the head and having a work engaging portion arranged to contact the low side of the sole away from said tool whereby said shoe may be moved from beneath the gage past the cutting and roughing tool without disturbing the adjustment of the gage.

31. In a machine for operating upon shoes, an operating tool, a gage, a work support arranged for reciprocating movement in a heightwise direction from a loading position to a starting position determined by said gage, resilient means for moving the work support from the loading to the starting position, and means for moving the work support from the starting position transversely past the operating tool.

32. In a machine for operating upon shoes, an

voperating tool, a gage, a work support arranged for movement between a loading position and an `operating position determined by the gage, a

member for moving the work support to the loading position, mea-ns on said member for hold `ing the work support in the loading position, and

resilient means effective upon release of the holding means for moving the work support from 'the loading position into engagement with the CHARLES G. BROSTROM;