US1596886A - Machine for operating on shoes - Google Patents

Description

Aug. 24,1926. H 1,596,886 v B. F. MAYO MA'CHINE FOR OPERATING ON SHOES Original Filed August 31, 1918 8 Sheets-Sheet 1 Tali/macs In bqzzi/ az 1; 7 gxma W B. F. MAYO MACHiNE FOR OPERATING ON SHOES Original Fil August 1, 1918 a Sheets-Sheet 2 21122522455 I [ll/06 721507 1 Aug. 24,1926. 596,886

B. F. MAYO.

MACHINE FOR OPERATING ON SHOES Original Filed August 1918 8 Sheets-Sheet 3 -12?) can 302 I I .i z,

Aug. 9

B. F."MAYO MACHINE FOR OPERATING ON SHOES Original Filed August 31, 1918 8 Sheets-Sheet 4- Iii/cantor Aug. 24 1926.

B. F. MAYO MACHINE FOR OPERATING ON SHOES Original Fil d August 1918 8 Sheets-Sheet 5 Aug. 24, 1926.

B. F. MAYO MACHINE FOR OPERA TING ON SHOES 8 Sheets-Sheet 6 Original Filed August 31, 191

iuabiigss :E W

Aug. 24,1926. 1,596,886

B. F. MAYQ MACHINE FOR OPERATING ON SHOES Original Filed Augus 1918 w 8. Sheets-Sheet 7 Aug. 24,1926. 1,596,886

B. F. MAYO MACHINE FOR OPERATING 0N SHOES Original le August 1918 8 Sheets-Sheet a Patented Aug. 24, 1926.

UNITED srarss PATENT OFFICE.

BENJAMIN F. MAYO, OF SALEM, MASSACHUSETTS, ASSIGNOR TO UNITED SHOE MA- CHINERY CORPORATION, 0F PATTERSON, N; 'W'UEESEY, A GOBPCR-ATION OF NEW JERSEY.

Application filed August 31, 1918, Serial No. 252,189. Renewed January 4, 1923.

This invention relates to machines for operating upon shoes in which thepoint of operation of the operating means is transferred about the shoe, and in which relative movements are automatically imparted to the operating means andothe shoe to n to provide such machineswith novel, im-

proved and' simplified mechanism for im parting the relative movements to the shoe and the operating means asthe point of operation is transferred about the shoe.

As illustrated in the present application theinvention is embodied in a machine in which movements are imparted to the jack to correct the position of the shoe with relation to the operating means by means of r a pattern and a series of guides arranged to engage the marginal portion of thepattern and acting to impart movements to the pattern the pattern is advanced past the guides, and connections for imparting movements to the jack corresponding with the movements of the pattern. The pattern is advanced past the pattern engaging guides by the action of mechanism acting directly on thepattern, and a feature of the invention contemplates the provision of mechanism acting frictionally on the pattern to advance the pattern past the guides. This frictionally acting mechanism for advancing the pattern is simple in construction and reliable in operation and when employed in connection with mechanism for feeding the shoe has the important advantage that it will allow or cause the advancing movement of the pattern to conform to the feeding movement of the shoe. In the illustrated embodiment of the invention, the pat-.

tern is curved in outline to correspond with the outline of the shoe bottom, and its marginal portion is curved to correspond with the surface curvature of the marginal portion of the shoe bottom, and the pattern enguides act to impart longitudinal and lateral tipping movements and lateral turning movements to the pattern and thereby to the jack and to the shoe carried by the jack to correct the position of the shoe relative to the operating means as the point of operation is transferred about the shoe. The mechanism for imparting movements from the pattern to the jack comprises a parallel-motion frame through which tipping movements are imparted to the jack from the pattern corresponding with the tipping movements of the pattern, and the provision in an automatic machine for operating on shoes of a parallel-motion frame for imparting movements to thejack from an actuating mechanism, constitutes. another feature of the invention. In the illustrated form of the invention, mechanism auxiliary'to the pattern and pattern engaging guides is provided for imparting correcting'movements to the shoe; during a-p'ortion of the operation of the nachine' on the shoe, and this auxiliary mechanism constitutes another feature of the invention. This auxiliary mechanism in the present embodimentof the'inv ention is arranged to act on the pattern to impart lateral turning movements to the pattern and is thrown into operation when the machine arrives at the toe of the shoe where a particularly rapid turning movement must be imparted to the pattern and thereby to the jack. This mechanism insures that the proper turning movement will be imparted to the shoe in a uniform and reliable manner when operating about the toe and relieves the pattern and pattern engaging guides from undue strain.

A feature of the present invention which is considered tobe broad and generic in character consists in the construction and arrangement of parts in an automatic. shoe machine'by which the relative correcting movements which are imparted to the operating means and shoe are controlled or producedby a pattern with relation to which the shoe is movable and which is provided when embodied in a machine having the construction and mode of operation of the machine illustrated in the present application, these features except as defined in the claims are not to be regarded as limited in their application to such a machine, but these features may be employed in other machines and in other relations. It is also to be understood that except as defined in the claims the invention is not limited to the form thereof illustrated in the present application, but that the invention may be embodied in any form within the scope of the claims.

The above and other novel features of the invention will be readily understood from the accompanying drawings illustrating the invention in its preferred form, and the following detailed description of the constructions therein shown.

In the drawings, Figure 1 is a view in front elevation of a machine embodying the invention; Fig. 2 is a view in side elevation of a portion of the machine looking from the right-hand side thereof, and illustrating particularly the pattern controlling guides and associated parts and the auxiliary mechanism for turning the pattern; Fig. 3 is a detail view, in side elevation, illustrating the pattern controlling guides in posi tion for the introduction of a pattern therebetween; Fig. 4 is a view, in front elevation, of a portion of the machine illustrating particularly the auxiliary mechanism for turning the pattern; Fig. 5 is a view, in side elevation, looking from the right, and Fig. 6 is a plan view, of the mechanism illustrated in Fig. 4; Fig. 7 is a view, in side elevation, of a portion of the machine, partly broken and partly in section, illustrating particularly the driving and stopping mechanism; Fig. 8 is a detail view, in front elevation, and Fig. 9 is a detail view, in side elevation, illustrating the jack; Fig. 10 is a detail view, in front elevation, illustrating the pattern and the devices for holding the pattern; Fig. 11 is a detail view, partly in front elevation and partly in section, illustrating certain of the parts shown in Fig. 10: Fig. 12 is a plan view of a pattern detached from the machine; Fig. 13 is a detail view, partly in side elevation and partly in section, illustrating certain parts of the auxiliary mechanism for turning the pattern; 14 is a detail sectional view, taken substantially on the line l t-14- of Fig. 6; Fig. 15 is a detail sectional view,

7 taken substantially on the line 1515 of Fig.

1; Fig. 16 is a. detail view, in front elevation, illustrating the pattern engaging guides and associated parts: Fig. 17 is a detail view, in vertical section, illustrating the arrangement of certain of the pattern engaging guides: Fig. 18 is a detail plan view illustrating certain parts of the auxiliary mechanism for turning the pattern; Fig. 19 is a detail view in side elevation, partly in section, illustrating certain parts of the auxiliary mechanism for turning the pattern; Fig. 20 is a view in side elevation, partly in section, illustrating a portionof the mechanism shown in Fig. 2, with certain of the parts in difierent positions; Fig. 21 is a detail plan view of the pattern and certain associated parts illustrating the manner in which the auxiliary mechanism for turning the pattern is tripped and the timing of the tripping mechanism; Fig. 22 is a detail sectional view of the pattern taken substantially on the line 2222 of Fig. 12; Fig. 23 is a detail sectional view of the pattern taken substantially on the line 2823 of Fig. 12; F ig. 24 is a detail sectional view of the pattern taken substantially on the line 2st24 of Fig. 12; and Fig. 25 is a detail sectional view of the pattern taken substantially on the line 25 25 of Fig. 12. In its illustrated form, the invention is embodied 1n a machine, the operating mechanism of which consists of sewing mechanism constructed and arranged for sewing welts and uppers to the insoles of welted shoes. The parts of the sewing mechanism have the same construction, arrangement andmode of operation as the corresponding parts of the machine illustrated and described in the copending application of Laurence E. Topham, Serial No. 163,880, filed April 28rd, 1917. This mechanism comprises a curved hooked needle (not shown), a curved awl indicated at 2, a channel guide indicated at 4-, a looper indicated at 6, a welt uide (not shown), and certain other devices co-operating with these parts to form a chain-stitch seam through a welt, the margin of an upper and the between substance of an insole to attach these parts together. This machine differs from the usual machine for sewing inseams of welted shoes chiefly in that the needle, awl, channel guide and welt guide are constructed, arranged and operated to feed the work continuously. The particular construction and arrangement of the parts of the sewing mechanism need not be described in this application.

The parts of the sewing mechanism are driven from a series of cams mounted upon a main driving shaft indicated at 8. This shaft carries at one end a pulley 10 which is connected by means of a belt 12 with the driven member of a friction clutch (not shown) located in the base of the machine. This friction clutch is engaged in the usual manner by means of a foot treadle, and is disengaged automatically by the action of a. spring upon the release. of the treadle.

The machine is provided with mechanism applied to the cam shaft and thrown into operation upon the disconnection of the friction driving clutch in the base which acts gradually toarrest the forward rotation of the shaft, then to impart a reverse rotation thereto, and finally to bring the shaft torest in a predetermined position. The reverse rotation is imparted to the shaft to retract the needle while its hook is free from the last needle loop, and the machine is finally brought to rest with the needle in retracted position. The mechanism for thus arresting the forward rotation of the shaft, imparting the reverse rotation thereto, and finally stopping the shaft in the machine, illustrated in the drawings, has substantially the same construction, arrangement and mode of operation of parts as the corresponding mechanism illustrated, and de scribed in the United States patent granted to Laurence E. Topham, No. 1,099,328, dated June 9, 1914.

This mechanism comprises a continuously rotating slow speed driving clutch member 14 which carries a spiral "ear 16 meshing with a spiral gear 18 mounted on one end of a shaft 20, upon the other end of which is mounted a pulley 22. This pulley is continuously driven by means of a belt 2d connecting the pulley with a driving pulley (not shown) located in the base of the machine. The driven member of the slow speed clutch is indicated at 26. The'engagement of the members of the slow speed clutch is controlled by a continuously vibrating lever 28, one arm of which carries a cam roll engaging in a cam groove in the sleeve 32 upon which the driven member of the clutch is mounted and the other arm of which is formed with a recess to receive the upper end of a lock bolt 34 mounted in a lock bolt carrier 36. As long as the lock bolt is held down out of the recess in the arm of the lever 28, the lever is vibrated idly by the action of the cam groove on the roll 30. When the lock bolt is moved upwardly by its actuating spring to engage its upper end in the recess in the arm of the lever 28, the lever thereby is locked to the lock bolt carrier and through the engagement of the cam groove with the cam roll the sleeve 32 is moved longtudinally of the shaft to engage the members of the slow speed clutch and to disengage the members of the clutch when the speed of the shaft has been reduced and the shaft has arrived substantially at stopping position. The upward movement of the lock bolt in the lock bolt carrier is controlled by means of a treadle rod 38 connected at its upper end with the lower end of the lock bolt and at its lower end with the treadle which controls the friction driving clutch in the base of the machine. The parts are constructed and aranged so that as the treadle is de pressed to engage the members of the main driving clutch, the rod 38 is moved downwardly to draw the lock bolt out of the bolt to'be moved upwardly by its actuating.

spring to engage its upper end in the recess in the lever 28. The main shaft 8 of the machine is finally brought to rest in a predetermined position by the engagement of the end of a forwardly extending arm of the lever 40 pivoted on the shaft 12 with a shoulder on a cam disk mounted on the shaft. The end of this arm normally lies below the shoulder and is swung upwardly into the path of the shoulder upon the reversal of the direction of rotation of the main shaft. This movement of the lever 40 is effected by means of the endwise movable arm orlink 14: pivoted at its rear end to an upwardly extending arm on the lever and formed at its forward end with two segr mental convex faces for alternative engage ment with a collar 16 on the main shaft 8. The arm is moved rearwardly upon-the reversal of the direction of rotation of the main shaft 8 by the engagement of the projection between the convex surfaces with the face'of a recess 47 in the collar 46. The reverse rotation of the shaft is checked just prior to the engagement of the shoulder on the cam disk with the forwardly extending arm on'the lever &O by means of a brake band '58 attached at'its forward end to the frame The jack for supporting the shoe during.

the sewing operation (see Figs. 1, 8 and 9) is mounted upon a block and comprises a horizontal rod or bar 62. upon one end of which is clamped a block 6-1 carrying the last pin, and upon the other end of which is clamped a block 66 carrying the toe rest. To the block 6 1 is'pivoted at 68 a lever 70 which carries a last pin 72. The lever 70 is acted upon by a coiled spring 74; interposed between an arm 76 on the lever and the block 64, which spring tends to swing the lever forwardly of the jack. The movement of the lever under the action of the spring is limited by the engagement of an arm 78 on the lever with an abutment face or. the block 64. To limit the distance which the last pin may be inserted in the last, and thereby to determine the vertical position of the rear end of the lasted shoe, a sleeve 80 threaded on the pin 72 so as to be engaged at its upper end by the last. The

sleeve 80 is held in adjusted position on the last pin by a lock nut 82. The block 66 is bored and slotted to form a clamp in which is secured by means of a clamping screw 8 a stud 86, upon the upper end of which is mounted a dovetailed guide plate 8 extending 'ransversely of the jack. Upon guide plate 88 are slidably mounted oloclzs JOanrl provided respectively with arms andiSG extending upwardly from the blocks in opposite angular directions so that a v -shaped recess is formed between the arms for the reception of the toe of the shoe. The blocks 90 and 92 may be adjusted on the guide-plate 88 toward and from each other to adjust relatively the arms 94 and 96 by means of an adjusting screw 98 threade into the blocks, the screw having two series of screw-threads of opposite pitch for engagement respectively with the blocks. To hold the adjusting screw from longitudinal movement a bar 100 is secured to the guide-plate 88 and is provided with an upwardly extending arm engaging in the groove between the collars or flanges 102 formed on the screw. Upon the end of the screw is mounted a milled-edged disk 10a by which the screw may be rotated to adjust the blocks.

Tn placing the lasted shoe upon the jack, the last pin 72 is pushed into the last. pin hole in the last until the last engages the upper end of the sleeve 80 and the toe of the shoe is positioned so that it will lie between the a 9 1 and )6 of the toe rest. The spring '4 will act to press the toe of the shoe downwardly into the recess between the arms 94 and 96, and the arms will support the toe of the shoe through their engagement with the shoe at points on opposite sides of the center line of the under side of the toe, as shown in Fig. 9, in which the toe of the shoe is indicated in dotted lines. The toe of the shoe may be adjusted to the proper height by a suitable relative adjustment of the toe supporting arms 91 and 96.

The block 60 which carries the jack is mounted upon the upper end of a shaft 106 journaled in a sleeve or hanger 108. The hanger 108 is pivotally connected by pivot pins 110 with a ring-shaped section of a cross-bar 112, and the lower end thereof is pivotally connected at 114 with a cross-bar 116. A second hanger 118 is pivotally connected by pivot pins 120 with a second ringshaped section of the cross-bar 112, and the lower end of this hanger is pivotally connected at 122 with the cross-bar 116. The hanger 108 is arranged substantially parallel with the hanger 118, and the cross-bar 112 is arranged substantially parallel with the cross-bar 116, so that the hangers and the cross-bars form a parallel-motion frame. This frame is supported in the machine so that it may be moved laterally in the direction of the feed of the shoe and so that it may be tipped about an axis substantially parallel with the line of feed. One end of the parallel-motion frame is supported by a tension spring 123 connected at one end with the upper end of a rod secured to the frame of the machine and at its other end with an extension of the cross-bar 112. A shaft 12 1 is ournaled in the hanger 118 and mounted on the upper end of this shaft is a frame carrying a pattern 126. As shown clearly in Figs. 10, 12, and 22 to 25, inclusive, the pattern has an outline corresponding with the outline of the shoe to be sewn, and the marginal portion of the pattern is curved transversely to correspond with the surface curvature of the marginal portion of the shoe bottom, A series of guides are arranged to engage the marginal portion of the pattern past which the pattern is moved during the feeding movement of the shoe. These guides support the pattern and the right hand end of the parallel-motion frame and operate to impart longitudinal and lateral tipping movements and lateral turning movements to the pattern to maintain the marginal portion of the pattern adjacent the guides in a position substantially parallel with a fixed plane and to maintain the edge of the pattern adjacent the guides in a position substantially parallel to the line of movement of the patter past the guides. By reason of the mounting of the jack and pattern upon parallel arms of the parallel-motion frame, as longitudinal tipping movements are imparted to the pattern corresponding longitudinal tipping movements will be imparted to the jack and the shoe supported on the jack. As lateral tipping movements are imparted to the pattern the whole parallel-motion frame will be tipped about a horizontal axis passing through the point of operation of the sewing mechanism on the shoe, and through the point of engagement of the guides with the pattern. The shaft 106' is connected with the shaft 12% by gearing, comprising a bevel gear 128 mounted on the shaft 106, a bevel gear 130, a shaft 132 journal-ed in the hanger 108 and carrying the gear 130, a shaft 134 connected by a universal joint with the shaft 132, a shaft 136 journaled in the hanger 118- and connected by a universal joint with the shaft 134:, a bevel gear 138 mounted on the shaft 136, and a bevel gear 1&0 mounted on the shaft 124. Throughthis gearing as lateral turning movements are imparted to the pattern, corresponding lateral turning move-.

ments will be imparted to the ack and to the shoe. Through the above mechanism connecting the pattern with the jack, as the shoe is fed ast the stitch-forming devices and the pattern is advanced past the guides, longitudinal and lateral tipping movements and lateral turning movements will be imparted from the pattern to the jack and to the shoe to place the marginal portion of the shoe 'bottom' adjacent the point operation in the proper plane with relation to the stitch-forming devices. and to place the marginal line or edge of the shoe bottom adjacent thepoint of operation in the proper position with-relation to the line of feed as the point of operation is-transferred about the shoe.

To enable different sizes and styles of shoes to be sewn upon the machine, the pattern 126 is mounted upon the pattern-holding frame so that it may be readily removed therefrom, and another pattern of different size or shape substituted therefor. The construction of the pattern-holding frame is illustrated in detail in Figs. 10 and 11. In the construction illustrated a support 144 is mounted upon the upper end of the shaft 124, and in this support is secured a horizontal rod 146. On the opposite ends of the rodv 146 are clamped respectively the blocks 148 and 150, in which are threaded the pattern-holding or retaining rods 152, the upper ends of which are adapted to engage in suitable openings in the pattern. lfiach of the rods is provided with a lateral projection 154 arranged to extend over and engage the upper side of the pattern to hold the same in position on the patternholding frame. Each of the patterns is provided with openings 156 corresponding in shape with the shape of the upper ends of the rods 152. Before placing a pattern upon the pattern-holding frame the rods 152 are turned so that the positions of their upper ends correspond with the openings 156 in the pattern, to allow the upper ends of the rods to be inserted in the openings in the pattern. When a pattern has been placed in position on the patternholding frame with the upper ends of the rods 152 inserted in the openings 156 in the pattern and with the pattern resting on the upper ends of the blocks 148 and 150, the rods are turned in a' direction to depress the rods in the blocks 148 and 150. The turning movements of the rods will carry the projections 154 over the upper surface of the pattern, and the depressing movements of the rods will cause the projections to engage the pattern and clamp it against the upper ends of the blocks to hold it securely in position on the frame. In removing a pattern from the frame, the rods 154 are turned in the opposite direction until the positions of the upper ends of the rods correspond with the positions of the openings 156 in the pattern. The pattern then may be removed from the frame and another substituted therefor. To enable the rods 154 to be turned in this manner to clamp and unclamp the pattern, cylindrical blocks 158'are secured to the lower ends of the rods and are formed with'spiral gear teeth 160 meshing with the teeth of spiral gears 162 mounted upon the opposite ends of a shaft164 .journaled in the blocks 148 and 150. The shaft 164 may be rotated by the operator-to actuate the rods at varying. angles to the axis of. the hanger 118. Figs. 22 to 25 illustrate the variations in the angular position of the marginal portion of the pattern relative to the axis of the hanger at different points in the marginal portion of the pattern, the axis of the hanger being represented by the line aza in these figures. The arrangement of the pattern-engaging guides and the manner in which the guides engage the pattern are illustrated clearly in Figs. 2, 16, 17 and 20.

The extreme marginal portion of the pattern is made considerably thinner than the body of the pattern and is engaged upon its lowe face by a; pair offspaced guide rolls 168 journaled upon pins 170 securedin a carrier 171, and upon itsupper face by a guide roll 172 journaled on a shaft .173 mounted to turn in bearings in the frame. The guide roll 17 2 is arranged substantially opposite a point midway between the guide rolls 168, as shown clearly in Figs. 16 and 17. The guide rolls 168 and 172 co-operate to impart longitudinal and lateral tipping movements to the pattern to maintain the marginal portion thereof parallel with a fixed plane. These tipping movements through the parallel-motion .frame are transmitted to the ack to maintain the marginal portion of the shoe bottom adjacent the point of operation subr stantially parallel with a fixed plane. The peripheral face or edge of the pattern is engaged by a pair of guide rolls 174 journaled upon pins 176 secured in a projection or bracket 17 7 on the frame of the machine.

The upper and lower faces of the pattern are formed with segmental grooves 17 8 and 180, in which are engaged convex rolls 182 and 184. The roll 182 is mounted upon the substantially 172' with its peripheral face in engagement with the rolls 17a. The rolls 182 and 18% are arranged opposite a point midway between the rolls 17 1 and cooperate with the latter rolls to impart lateral turning movements to the pattern to maintain the portion of its edge adjacent the rolls in a constant position with relation to the line of feed of the pattern past the rolls which is substantially parallel with the line of feed of the sewing mechanism. Through the gearing connecting the pattern with the jack upon which the shoe is mounted, corresponding lateral turning movements will be imparted to the shoe to maintain the edge of the shoe bottom at the point of operation in a constant position with relation to the line of feed of the sewing mechanism.

The rolls 182 and 184: not only act as guides to assist in imparting movements to the pattern, but are positively rotated to advance the pattern past the guides, the rolls acting frictionally on the pattern to advance the pattern. These rolls are connected with the cam shaft of the sewing mechanism by suitable gearing constructed to 1'0- tate the guides to advance the pattern in timed relation to the feeding mechanism by which the shoe i fed. The rolls through their feeding action, therefore, take all strain of advancing the pattern past the guides from the shoe feeding mechai'iism, and may even assist the shoe feeding mechanism in feeding the shoe. Because of the frictional engagement of the pattern feeding rolls with the pattern a certain amount of slip is allowed between the pattern and the rolls so that the advancing movement of the pattern will conform at all times to the feeding movement of the shoe. The mechanism for rotating the rolls comprises a spiral gear 204 mounted on the rear end of the shaft 173, a spiral gear 206 meshingwith the spiral gear 20 a shaft 208 upon the lower end of which the spiral gear 206 is mounted, a spiral gear 210 mounted on the upper end of the shaft 208, and a spiral gear 212 mounted on the cam shaft 8 and meshing with the spiral gear 210. The roll 18st is driven from the shaft 173 by means of a spur gear 214 mounted on the shaft 173 and meshing with a spur gear 216 mounted on the rear end of the shaft 188. The carrier 171 which carries the rolls 168 and 18% is mounted for vertical movement, and is acted upon by a spring which tends to force the carrier upwardly. \Vith this construction the rolls upon the opposite sides of the pattern are maintained in yielding en- .gageinent with the pattern, and the carrier may be depressed to separate the rolls engaging the upper side of the pattern from the rolls engaging the lower side thereof to enable a pattern to be inserted or removed from between the rolls. The carrier 171 is formed with spaced guide arms 190 which embrace the bracket 177 and are arranged to slide in suitable grooves in said bracket. This construction enable the carrier 1 1 to slide vertically relatively to the bracket 177. An arm 19% is secured at its upper end in the carrier 171 and is engaged at its lower end by the forward end of a lever 196 pivoted at 198 on the frame of the machine. The rear end of the lever 196 is acted upon by a tension spring 200 which normally maintains the carrier 171 in an elevated position. To enable the carrier 171 to be depressed to separate the rolls 168 and 18 1 from the rolls 172 and 182, the lever 196 is connected by a treadle rod 202 with a treadle (not shown). By depressing this treadle, the rod 202 and the rear end of the lever 196 are elevated. and the forward end of the lever depressed, allowing the carrier 171 to be moved downwardly into the position shown in Fig. 3.

In the present construction, the auxiliary mechanism for imparting lateral turning or swinging movements to the pattern is constructed and arranged to be thrown into operation automatically when the pattern engaging guides reach the toe portion of the pattern and operates to swing the pattern through somewhat over while the guides are engaging the toe portion of the pattern. This auriliary mechanism ensures the imparting of the proper lateral turning movement to the pattern and to the jack in a uniform and reliable manner when the machine is operating about the toe of the shoe, and takes a large part of the strain off the pattern and the guides during this period in the operation- In the construction shown, this auxiliary mechanism for swinging the pattern comprises a rod 218 normally located at the left of the pattern engaging guides looking at the front of the pattern, and arranged to engage the peripheral face or edge of the pattern. This rod is clamped at its upper end in an arm 220 on a carrier 222 secured to the lower end of a shaft 224 mounted in bearings 226 and 228 on the frame of the machine. The carrier 222 is acted upon by a spiral spring 280 attached at one end to the carrier and at the other to the frame, which spring tends to swing the carrier in a counterclockwise direction (Fig. 6). The carrier 222 is normally held from movement under the action of the spring 230 in the position shown in the drawings, by a latch. hen the pattern engaging guides arrive at the toe portion of the pattern, the latch is released and the spiral spring 230 then acts on the carrier to swing the same and the rod 218, in a counterclockwise direction. During this movement of the rod, the rod engages the periphery of the pattern, and assists in swinging the pattern as the guides pass pin 234.

about the toe portion thereof. The latch is released automatically by a device mounted on the pattern-carrying frame. The latch is indicated in the drawings at 232. The latch is'mounted in suitable guides in the carrier 222 to slide vertically therein, and is arranged to engage at its upper end one of the pair of pins 234 mounted on and projecting downwardly from a spiral gear 236 journaled on the shaft 224. The latch is forced upwardly into acting position by means of a coiled spring 238. The upward movement of the latch relative to the carrier 222 under the action of the coiled spring 238 is limited by means of a collar 242 secured to the latch rod. The gear 236 is normally held from rotation on the shaft 224 in the position shown in the drawings, and through the engagement of the latch with one of the pins 234 the carrier 222 and the rod 218 are held from movement under the action of the spiral spring 230 in the posi tion shown in the drawings. The lower end of the latch rod is formed with a yoke indicated at 244 embracing a lever 246 consisting of a plate mounted upon pivot pins 248 carried by a plate 250 adjustably secured to the frame by means of a bolt 252 engaging in a slot in the plate. The lever 246 is normally maintained in its uppermost position in engagement with a stop face on the plate 250 by a tension spring 254. 'The lever 246 is connected by a ball-ended link or strut 256 with the horizontal arm of a bell-crank lever 258 pivoted upon a stud 260 carried by the plate 250. A rod 262 is mounted upon the vertical arm of the bellcranl-: 258 and projects forwardly therefrom into position to be engaged by a pin 264 constituting an extension on the rod 152 which engages in the heel end of the pattern plate, the pin projecting some distance above the pattern plate. hen the movement of the pattern plate past the guides brings the guides to the toe portion of the plate, the pin 264 strikes the rod 262 and swings the vertical arm of the bell-crank 258 to the left. By the movement. of the bell-crank thus produced, the lever 246 will be swung clownwardly, and through. the engagement of the lever with the lower arm of the yoke 244, the latch rod will be depressed to draw the latch232 down out of engagement with the The carrier 222 will then be swung in a counterclockwise direction by the action of the spiral spring 230, and the lower end of the rod will engage the periphery of the pattern plate at the side thereof near its heel end, and wi l swing the same in a counterclockwise direction. The rod 218 during its operative movement swingssubstantially through a quarter of a revolution, an angular movement of substantially a quarter ofa revolution being imparted to the pattern by the co-operative the pattern so that the auxiliary mechanism is thrown into operation at any desired point in theinovement of the pattern. As clearly illustrated in Fig. 1, the rod 262 is preferably constructed so that it is engaged by the pin 264 to throw the auxiliary mechanism into operation just as the rolls 182 and 184 reach the sharply curved portions of the segmental grooves 178 and 180.

After having thus assisted the pattern-en gaging guides in swinging the pattern when passing about the toe portion thereof, the carrier 222 is swung back to its initial position against the action of the spring 230 and is again latched in such position. This reverse movement of the carrier is imparted thereto by the action of the spiral gear 236. It will be noted that the two pins 234 which are adapted to be engaged by the latch 232 are arranged diametrically upon the gear 23 The driving mechanism for the gear 236is normally held out of operation so that the gear is held stationary. The carrier is held in inactive position through the engagement of the latch 232. with the pin 234 which is located nearerthe rear of the machine. The operative swinging movement of the carrier 222 carries the lower armof the yoke 244 out of engagement with the lever 246 before the carrier completes its movement, thereby allowing the latch to be again elevated by the action of the spring 238. The latch is then in position to be engaged by thepin 234 nearer the front of the machine. As the carrier completes its operative stroke, the driving mechanism for the gear 236 is automatically thrown into operation and rotates thev gear through substantially a halfrevolution in a clockwise direction (Fig.6), after which the driving mechanism is automatically thrown out of operation. During this rotation of the gear 236 the forward one of the pins 234 engages the latch 232 and swings the carrier 222 back to its initial position, thereby winding up the spring 230. The mechanism forthus intermittently rotating the gear 236 comprises a spiral gear 266 secured on a shaft 268 mounted in suitable hearings in the frame of the machine. Upon the rear end of the shaft 268 is loosely mounted a sleeve 270 of a cap 278 secured to the end of the shaft with the rear end of the sleeve. The driven member of the clutch is indicated at 280 and is secured to a sleeve 282 mounted on the shaft 268 to rotate with the shaft and. movable longitudinally of the shaft to carry the driven clutch member into and out of engagement with the driving clutch member 276. To connect the sleeve 282 for rota tion with the shaft, the forward end of the sleeve is formed with projections 284 arranged to engage in recesses or slots in an enlargement 286 on the shaft. A coiled spring 288 surrounding the shaft 268 within a suitable bore formed in the sleeve 282 is interposed between the end of the bore and the enlargement 286 on the shaft, and tends to move the sleeve to carry the clutch member 280 into engagement with the clutch member 276. The movement of the sleeve 282 under the action of the spring 288 is controlled by means of a lever 290 embracing the sleeve and carrying blocks 294 mounted upon pivot pins 296 and engaging in a groove in the sleeve. One end of the lever 290 is pivotally connected at 300 with the rear end of a rod 302 mounted to slide in suitable guides in the frame and formed with a yoke 304 at its forward end which is connected with the frame by a toggle. This toggle consists of the links 306 and 308 pivotally connected at 310. As shown clearly in Fig. 6, the link 306 is pivotally connected at its forward end with the yoke 304 and the link 308 is pivotally connected its rear end with the frame. The position of the toggle is controlled by a rod 316 connected with the central joint of the toggle. This rod is mounted to slide in guides in the frame and is acted upon by a coiled spring 318., interposed between the frame and a collar 320 mounted on the rod, which spring normally tends to move the rod in a left-hand direction (Fig. 4). The movement of the rod 316 under the influence of the spring 318 is limited by the engagement of a pin 322 mounted on the rod with the frame of the machine. This pin is located relatively to the rod so that when the pin is engaged with the frame the toggle will be held by the rod substantially in a. straightened condition, as shown in the drawings. The novement of the rod 316 in a direction to break the toggle is limited by the engagement of a stop screw 324 threaded into the yoke 304 with the toggle.

The other end of the lever 290 is pivotally connected at 326 with the rear end of an arm 328, to the forward end of which is secured a yoke 330 embracing the shaft 224 and resting on the hub of the gear 236. The arm 328 is normally held in forward position, as shown in the drawings, by the engagement of one of the rolls 332 mounted on the upper ends of the pins 234 which project above the gear 236 with a cam 334 formed on the yoke 330. With the opposite arms of the lev r 290 held in their forward positions, as shown in the drawings, the sleeve 282 will be held by the lever in position longitudinally of the shaft 268 with the driven mem her 280 of the friction clutch out of engagement with the driving member 276 of the clutch. When either end of the lever 290 is released by the mechanism for holding the same, the spring 288 will move the sleeve longitudinally of the shaft to engage the driven member of the clutch with the driving clutch member. The carrier 222 is formed. with an upwardly projecting arm 336 arranged to engage the end of the rod 316 during the operative swinging movement of the carrier. As the carrier approaches the end of its operative stroke, the arm 336 engages the end of the rod 316 and moves the rod longitudinally through its guides in the frame against the tension of the spring 318, thereby breaking the 306308. By the breaking of the toggle the rod 302 will be moved rearwar'dly through the frame, allowing the spring 288 to move the sleeve 282 to carry the clutch member 280 into engagement with the clutch member 2'76. Rotary movement will then be imparted to the shaft 268 and the 236 will be driven in a clockwise direction. During the rotary movement of the gear the pin 234, which is in forward position as the gear starts its rotation, will engage the latch 232 and the carrier 222 will be swung back to its initial position by the gear. The initial rotary movement of the gear carries the rearward roll 332 beyond the cam 334 so that the arm 328 is free to move rearwardly. As the gear picks up the carrier 222 the arm 336 on the carrier is carried out of engagement with the end of the rod 316 during the initial movement imparted to he carrier, and the rod is then moved back to its normal position, as shown in the drawings, by the action of the coiled spring 318. This movement of the rod straightens the toggle 306308, and moves the rod 302, and the end of the lever 290 connected therewith, forwardly. The disengagement of the members 280 and 276 of the friction clutch, however, is not effected by this movement of the lever 290, since the roll 332 has disengaged the cam 334 before this movement occurs, and the spring 298 continues to hold the member of the clutch in driving engagement. Fv hen the gear 236 has rotated substantially a half revolution, the roll 332, which was in forward position at the beginning of the rotation of the gear, engages the cam 334 on the yoke 330 and moves the yokeand the arm 328 forwardly, thereby actuating the lever 290 to carry the driven member 280 of the friction clutch out of engagement with the driving clutch memher 276. The carrier 222 is thus brought back to starting position, and is held in such position until again released by the movement of the pattern carrying frame in the process of sewing another shoe.

In starting the machine the operator, after having placed a shoe on the jack and located the shoe in proper position with relation to the sewing mechanism for the starting of the seam, depresses the treadle rod 38 to engage the members of the main driving clutch in the base of the machine. In order to maintain the members of the main driving clutch in engagement to drive the machine until the seam has been completed, a latch is provided for holding the treadle rod 38 in depressed position. This latch is thrown into operative position upon the depression of the treadle and is automatically released when the heel of the shoe upon the side of the shoe last sewn, where the seam is to be terminated, is reached. In the drawings, the latch is indicated at 838, and is secured upon one end of a shaft 340 mounted to turn in abearing in a support 3 12. The upper end of the latch is formed with a lateral projection to engage the upper side of an arm 34A secured to the treadle rod 38 to hold the rod in depressed position.

The forward end of the arm 3 A is arranged to engage in a guideway between a projection or bracket 3&6 on the frame, and a plate 34:8 secured to the bracket, to prevent the arm from turning about the axis of the treadle rod 38. To the forward end of the shaft 3&0 is secured an arm 350 upon the extremity of which is mounted a disk 352. The arm S is normally held up by a spring 354. Upon the depression of the treadle the latch is swung into operating position by the action of the spring 354;. The latch is swung in the opposite direction to release the treadle rod 38 and thereby cause the stoppage of the machine by the engagement of a rod 356 mounted in an arm on the pattern-holding frame and extending laterally of the frame with the disk The rod 356 is mounted on the pattern-holding frame in position to engage the disk 352 to throw out the latch 338 and thereby bring the machine to rest when the sewing mechanism has reached the point at the heel end of theishoe where the seam is to be terminated. After the machine has thus been brought to rest and the operator has removed the shoe from the jack, the treadle rod 38 is again depressed to start the machine to bring the pattern and jack to starting positions. The rod 356 is extended upon opposite sides of the arm 358 on the pattern-holding frame so that it will again engage the dish and actuate the arm 350 to throw out the latch 338 and cause the stoppage of the machine when the pattern and jack have been broughtto starting posltlons.

With the above construction the point of I engagement of the guides with the pattern is a fixed point and corresponds to the point of operation of the sewing mechanism on the shoe. It is to be noted that there is no lateral movement of the pattern produced by the tipping movements of the jack and the shoe about the point ofoperation of the operating means as is the case where the pattern is rigidly connected: with the jack, and that the tipping and turning movements about the point of operation imparted to the shoe correspond very closely with the tipping and turning movements of the" pattern about the point of engagement of the guides therewith, Itis thus possible to control the shoe very accurately in this machine.

Having explained the nature and object of the invention, and having specifically described a machine embodying the novel features thereof in theirpreferred forms, what is claimed is:

1. A machine for operating on shoes, having, in combination, means for operating on shoe, a shoe supporting ack, a pattern connected with the jacir, guides engaging the pattern and operating to impart tipping and turning movements to the pattern and thereby to the jack to correct the position of the shoe relative to the operating means as the point of operation is transferred about the shoe, and means acting directly on the pattern for advancing the pattern past the guides.

2. A machine for operating on shoes, having, in combination, means for operating on a shoe, a shoe supporting ack, a pattern connected with the jack, a series of guide rolls engaging the pattern and operating to impart tipping and turning movements to the pattern and thereby to the jack to correct the position of the shoe relative to the operating means as the point of operation is transferred about the shoe, and means for rotating certain of the guide rolls to advance the pattern past the guide rolls.

3. A machine for operating on shoes, having, inrcombination, means for operating on a shoe, a shoe supporting jack, a pattern having an outline curved to correspond with the outline of the shoe bottom and having its marginal portion curved to correspond 'ith the surface curvature of the marginal portion of the shoe bottom, connections between the jack and the patern for moving the jack from the pattern, guides engaging the pattern and operating to impart tipping and turning movements to the pattern and thereby to the jack to correct the position of the shoe relative to the operating means as the point of operation is transferred about the shoe, and means acting directly on the Lao pattern for advancin the pattern past the guides.

4. A machine for operating on shoes, having, in combination, means io operat' g on a shoe, a shoe supporting jack, a pa tern con nected with the jack, guides engaging the pattern and operating to impart movements to the pattern and thereby to the jacir to correct the position of the shoe relative to the operz'r'ting means the point ot opera tion is transferred about the shoe, and devices acting trietionally on the pattern to adv nce the pattern past the guides.

5. I; machine for operating on shoes, having, in Combination, means for operating on a shoe, means for feeding the shoe acting directly on the shoe, a shoe supporting jack, a pattern connected with the jack, guides engaging the pattern and operating to impart movements to the pattern and thereby to the jack to correct the pa ution the shoe relative "to the operating means as the point of o ierat'ion is transt i about the shoe, and devices acting frictionally on the pattern to advance the patte past the guides.

6. A machine for open on shoes, having, in combination, mea s for operating on a shoe, a shoe supporting jack, a pattern having-an outline curved to correspond with the outline of the snoe bottom and having its marginal portion curved to correspond with the surface curvature of the marginal portion of the shoe bottom, connections between the jack and the pattern for moving the jack from the pattern, guides engaging the pattern and operating to impart tipping and lateral turnin movements to the pattern and thereby to the jack to correct the position of the shoe relative to the operating means as the point of operation is transferred about the shoe, and auxiliary mechanism thrown into operation automatically at a predetermined pointinthe operation the machine on the shoe for imparting laterai turning movement to the ack.

7. A machine for operating on shoes, having, in combination, means operating on a shoe, a shoe supporting jack, a pattern connected with the jack, guides engaging the pattern and operating to impart movements to the pattern and thereby to the jack to correctthe position ot the shoe relative to the operating means as the point of operation is transferred about the shoe, and auxiliary mechanism constructed and arranged to be thrown into operation at one or more points in the operation of the machine on the shoe for imparting correct ing movement to the jack.

8. A machine tor operating on shoes, having, in combination, means for operating on a shoe, a shoe supporting jack, a pattern connected with "the jack, guides engaging the pattern and operating to impart movements to the pattern and thereby to the ack to correct the position of the shoe relative to the operating means as the point of operation is transferred about the shoe, and auxiliary mechanism constructed and arranged to be thrown into operation at one or more points in the operation of the machine on the shoe for impa ing correcting movement to the pattern and thereby to the jack.

9. A machine for operating on shoes, having, in combination, means for operating on at shoe, a shoe supporting jack, a pattern connected with the eel: guides eru ag'in a c \5 a 2;.

the pattern and operating to impart move ments to the pattern and thereby to the acl; to correct the position of the shoe relative to the operating means as the point of operation is transferred about the shoe, and aux iliary mechanism thrown into operation automatically at a predetermined point in the operation of the machine on the shoe tor imparting correcting movement to the 10. A machine for operating on shoes, having, in combination, means for operating on a shoe, a shoe supporting jack, a

"untoiineeted with the jack, guide/s enthe pattern and operating to impart movements to the pattern and thereby to the jack to correct the position of the shoe relative to the opera-ting means as the point of operation is transferred about the shoe, and auxiliary mechanism thrown into operation automatically at a predetermined point in the operation of the machine by tne movement of the pattern for in'rparting correcting movement to the jack.

11. A machine for operating on shoes,

having, in combination, means for operating on a shoe, a shoe supporting jack, a pattern connected with the jack, guides engaging the pattern and operating to impart move ments to the pattern and thereby to the jack to correct the position or the shoe relative to the operating means as the point of operation is transierreo about the shoe, and. auxiliary mechanism adapted to be thrown into operation at a predetermined point in the operation of the machine on the shoe for imparting correcting movement to the jack.

12. A machine for operating on shoes,

having, in combination, means "tor operating on a shoe, a shoe supporting jack, a pat tern connected With the jack, guides engaging the pattern and operating to impart lateral turning movements to the pattern and thereby to the jack to correct the position of the shoe relative to the operating means as the point of operation is transferred about the shoe, a spring-actuated arm for engaging the pattern to turn the same, a latch for holding the arm in inactive condition, and means operated by the movement of the pattern for releasing the latch.

14-. A machine for operating on shoes, having, in combination, means for operating on a shoe,.a shoe supporting jack, a pattern connected With the jack, guides engaging the pattern and operating to impartlateral turning movements to the pattern and thereby to the jack to correct the position of the shoe relative to the operating means as the point of operation is transferred about the shoe, a spring-actuated arm for engaging the pattern to turn the same, means for holding the arm in inactive condition, means for releasing the holding means, mechanism i11- cluding an intermittently acting clutch for turning the arm back to starting position, and mechanism for engaging and disengaging the clutch.

15. A machine for operating on shoes, having, in combination, means for operating on a shoe, a parallel-motion frame, I comprising parallel lateral members, a shoe supporting ack mounted on one of said lateral members, and mechanism acting on the other of said members to impart tipping movements thereto and thereby through the first member to the jack to correct the position of the shoe relative to the operating means as the point of operation is transferred about the shoe.

16. A machine for operating on shoes, having, in combination, means for operating on a shoe, a parallel-motion frame comprlsing parallel lateral members, a shoe supportin jack mounted on one of said lateral members, a pattern mounted on the other of said lateral members, and guides engaging the pattern and operating to impart tipping and turning movements to the pattern and thereby through the frame to the jack to correct the position of the shoe relative to the operating means as the point of operation is transferred about the shoe.

17. A machine for operating on shoes, havin in combination, means for operato b l i mg on a shoe, a parallel-motion frame comprising parallel lateral members, 7 a jack pattern and thereby through said frame and gearing to the jack to correct tthe posi tion of the shoe relative to the operating means as the point of operation is transferred about the shoe. V v

18. A machine for operating on shoes, having, in combination, means for operating on a shoe, a parallel-motion frame, a shoe supporting jack mounted on the frame, and devices acting on the frame to actuate the same to impart movements to the jack to correct the position of the shoe relative to the operating means as the point of operation is transferred about the shoe.

l9.-A machine for operating on shoes, having, in combination, means for operating on a shoe, a shoe supporting jack, a pattern having an outline curved to correspond with the outline of the shoe bottom and having its marginal portion curved longitudinally and transversely to correspond substantially at all polnts With the surface curvature of the marginal portion. of the shoe bottom,

connections between the jack and the pattern for moving the jack from the pattern, and guides engaging the pattern and operating to impart tipping and turning movements to the pattern and thereby to the jack to correct the position of the shoe relative to the operating means as the point of operation is transferred about the shoe.

20. A machine for operating on shoes, having, in combination, means for operating on a shoe, means for feeding the shoe, a shoe supporting jack, a pattern connected With the jack, guides engaging the pattern and operating to impart movements to the pattern and thereby to the jack to correct the position of the shoe relative to the operating means as the point of operation is transferred about the shoe,and means acting independently of the shoe feeding means for advancing the pattern past the guides.

21. A machine for operating on shoes, having, in combination, means for operating on a shoe, a shoe supporting jack, a pattern connected with. the jack, guides engaging the pattern and operating to impart lateral turning movements to the pattern and thereby to the jack to correct the position of the shoe relative to the operating means as the point of operation is transferred about the shoe, and auxiliary mechanism thrown into operation automatically When the guides reach the toe portion of the pattern for imparting lateral turning movement to the pattern While'the guides are passing about the curve at the toe portion or the pattern.

22. A machine for operating on shoes having, in combination, means for operat ing on a shoe, a shoe supporting jack, a pattern movable relatively to the jack, guides engaging the pattern at a substantially fixed point corresponding With the point of operation of the operating means on the shoe and acting to impart tipping and turning movements to the pattern about the point of engagement of the guides therewith, and connections comprising relatively movable parts for imparting from the pattern tipping and turning movements to the shoe about the point of operation to correct the position 01 the shoe with relation to the operating means as the pointoi operation is transferred about the shoe.

9.3. A machine for operating on shoes ha ing, in combination, means for operating on a snoc, a shoe supporting jack, a pattern movable relatively to "the jack, guides engaging the pattern at a substantially lixed point corresponding with the point of operation of the operating means on the shoe and acting to impart angular movements to the pat tern about the point of engagement of the guides therewith, and connections comprising relatively movable parts for imparting from the pattern angular movements to the shoe about the point of operation to cor-- root the position of the shoe with relation to the operating means as the point of operation is "transferred about the shoe.

24:. A machine for operating on shoes having, in con'ibination, means for operating on a shoe, a shoe supporting ack, iceding devices, a pattern movable relatively to the jack, guides engaging the pattern at a substantially fixed point corresponding with the point of operation of the operating means on the shoe and acting to impart angular movements to the pattern about the point of engagement of the guides therewith, and connections comprising relatively movable parts itor imparting from the pattern angular movements to the shoe about the point of operation of the operating means and for causing the feeding movements of the shoe and the feeding movements of the pattern to conform to each other.

25. A machine for operating on shoes having, in combination, means for operating on a shoe, a shoe supporting jack, a. movable pattern, guides engaging the pattern at a substantially fixed point corresponding with the point of operation of the operating means on the shoe acting to impart angular n-iovements to the pattern about the point of engagement of the guides therewith, and connections for imparting from the pattern angular movements to the shoe about the point of operation similar to the movements of the pattern about the point of engagement of the guides therewith to correct the position of the shoe with relation to the operating means.

26. A machine for operating on shoes having, in combination, a shoe supporting jack, a pattern with relation to which the jack is movable having contours corresponding to contours on the shoe, means for operating on a shoe, and means controlled by the pattern contours for imparting relative correcting movements to "the shoe and operating means as "the point of operation of the operating means is transferred around the shoe.

'27. A machine for operating on shoes having, in combination, means for operating 'on a shoe, a shoe supporting jack, a pattern movable relatively .to the jack, means for imparting tipping and turning movements to the pattern about a point'corresponding wi-ththe point of operation of the operating means on the shoe, and connections comprising relatively movable parts for imparting from the pattern tipping and turning movements to the shoe about the point of operation to correct the position of the shoe with relation to the operating means as the point of operation is transferred about the shoe.

28. A machine for operating on shoes having, in combination, means for operating on a shoe, a shoe supporting jack, a pattern movable relatively to the jack, means for imparting angular movements to the pattern about a point corresponding with the point of operation 01E the operating means on the shoe, and connections compris 1g relatively movable parts for imparting from the pattern angular movements to the shoe about the point of operation to correct the position of the shoe with relation to the operating means as the point of operation is transferred about the shoe.

29. A machine for operating on shoes having, in combination, means for operating on a shoe, a shoe supporting jack, a pattern movable relatively to the jack having contours corresponding to contours on the shoe, means for imparting to the patternmovements determined by said contours, and means for im earting corresponding-correcting movements to the shoe as the point of operation of the operating means is transferred around the .shoe.

3O. A machine for operating on shoes having, in combination, means for operating on a shoe, a shoe supporting jack, a pattern movable relatively to the jack having contours corresponding to contours on the" shoe, means for imparting to the pattern movements determined by said contours, and mechanism actuated by said pattern movements for imparting corresponding correcting movements to the shoe as the point of operation of the operating means is transferred around the shoe.

BENJAMIN F. NLAYO.

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