US1322129A - Sole pressing machine - Google Patents

Description

B. F. MAYO.

SOLE PRESSING MACHINE.

APPLICATION FILED MAR. n, 1916.

I 1,322, 129. Patented Nov. 18, 1919.

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SOLE PBESSING MACHINE. APPLICATION man MAR. 11. 1916.

1,322,129. H Patented N0v.18,19'19.

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B. F. MAYO.

SOLE PBES SING MACHINE.

APPLICATION FILED MAR-11,1916.

1 ,322, 129. Patented Nov. 18, 1919.

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SOLE PRESSING MACHINE.

APPLICATION FILED MAR. 1|,1916.

1 ,322, 1 29 Patented Nov. 18, 1919;

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SOLE PRESSING MACHINE. APPLICATION FILED MAR. II. 1916.

1,322, 129. Patented Nov. 18,1919.

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UNITED STATES PATENT OFFICE.

BENJAMIN F. MAYO, OF SALEM, MASSACHUSETTS, ASSIGNOR, BY MESNE ASSIGNMENTS,

'10 UNITED SHOE MACHINERY CORPORA POIRATION OF NEW JERSEY.

TION, OF PATERSON, NEW JERSEY, A. GOR- SOLE-PRESSING MACHINE.

Specification of Letters Patent.

Patented Nov. 18, 1919.

Application filed March 11, 1916. Serial No. 83,574.

17 0 all whom it may concern:

Be it known that I, BENJAMIN F. MAYO, a citizen of the United States, residing at Salem,in the county of Essex andState of Massachusetts, have invented certain new and useful Improvements in Sole-Pressing Machines; and I do hereby declare the following to be a full, clear, and exact descrip tion of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to sole-pressing machines and more particularly to a solelocating mechanism for sole-pressing machines of that class which are adapted to perform the operation known in the shoemaking art as sole-laying.

The primary object of the present invention is to provide a sole-locating mechanism which will enable the operator to quickly and accurately position the sole with relation to the upper, regardless of the position in which. the upper is supported, and to position all soles uniformly upon their shoe uppers.

In the preferred form of the invention the shoe is supported upon the jack with the bottom side up, and the sole positioning means consists of a series of gages arranged to surround the lasted shoe, each gage having an upper engaging face and solecontacting j aw. The upper engaging faces and the sole contacting jaws are relatively ad justable, so that the sole can be located in any desired position relatively to the upper. The gage jaws normally project above the bottom of the shoe t6 receive the sole, and are yieldable to allow the form to be properly seated on the sole. When the aws are pushed down by the form they remain in contact with the edge of the sole, so that the sole is positively retained in position during the pressing operation. 7

Although the shoe-locating device is well adapted for use in sole-laying machines, it is not limited to such use but may be employed in any machine in which the sole is to be located in a predetermined position relatively to the shoe upper.

The invention consists in the features illustrated in the accompanying drawings, in which Figure 1 is a view inside elevation showing a progressive pressure solelaying machine embodying the preferred form ofthe invention; Fig. 2 is a view in front elevation of an upper portion oi": the machine shown in Fig. 1, showing the shoelocating mechanism and the sole-pressing form; Fig. 3 is a view in side elevation, partly in section, of the parts shown in Fig. 2; Fig. 4 is a front elevation of the machine, the jack and pressing form being removed; Fig. 5 is a top plan view of the pressing form showing the relation of the shoe and sole-locating device thereto; Fig. 6 is a detail view. in vertical section taken on the 1ine 6-6 of Fig. 5; Fig. 7 is a hori- 'zontal sectlon of the shoe jack and solelocating mechanism taken on the line 77 of Fig. 3; and Fig. 8 is a detail view showing the clutch controlling shaft.

In laying a sole with the machine illus trated in the drawings, the sole-locating mechanism is withdrawn from the jack, a lasted shoe placed thereon, and the solelocating mechanism brought into contact with the lasted shoe. A sole is then placed in the locating mechanism and the machine set in operation to bring the pressing form into contact with the soleand then apply pressure to the form to lay the sole.

The laying machine has two jacks equipped with asole-locating mechanism, each one being entirely separate and independent of the other. The construction and operation of the two sole-locating devices are substantially the same, so that only one will be described.

The jack for supporting the lasted shoe, see Figs. 1, 3, and 6, consists of a heel post 10 and a toe post 12 which carry a heel sup port 14 and a toe rest 16. The heel support 14 is pivotally mounted on the post 10' and the heel support spindle 15 is normally forced toward the heel end of the last by a spring '18 connected between the heel sup port and the post 10. The heel post 10 and toe post 12 are formed integral with slides 20 and 22 respectively, see Figs. 6 and 7, which are provided with inwardly facing tively to one another by means of a threaded shaft 30, to which is secured a hand-wheel 32, see Fig. 3. The shaft 30 is fixed in a block 3% on the front of the carrier 28, and

is threaded into a block 36 on. the bottom of the toe post slide 22 and a block 38 on the bottom of the heel post slide 20. The block 86 has a left-hand thread, and the block 38 a right-hand thread, so that a movement of the shaft 30 will move the slides 20 and 22 toward or away from each other in making the size adjustment.

The jack determines the position of the lasted shoe for the sole-laying operation, and to accurately position a sole upon the shoe a sole-locating mechanism is mounted upon the jack and arranged to position the sole relatively to the lasted shoe. The sole-locating mechanism consists of a pair of tip line gages located on each side of the shoe at approximately the tip line, a pair of breast line gages located on each site of the shoe at approximately the breast line, and a heel gage located opposite the heel end of the shoe. The tip line gages are held in carriers d0 which are pivotally mounted in the toe post slide and the breast line and heel gages are held in carriers 4:2 and at respectively, pivotally mounted in the heel post slide 20. The tip line and breast line gages consist of a shoe upper contacting face 46 and a sole-retaining jaw 4:8 secured to a plunger 50 which is slidably mounted in the gage carrier. The sole-retaining jaw 48 is adjustable relatively to the upper contacting face 46, so that the sole edge may be adjusted to any desired position relatively to the upper. To make the adjustment, the j aw i8 is fixed toa screw 52 that is threaded into the block of the upper contacting face 46.

The sole-retaining jaw 54 of the heel gage, Fig. 3, is secured to a plunger 56 which is slidably mounted in the carrier +tt. The shoe upper-contacting face of the heel gage consists of the upper end of a plate 58 which is adj ustabl y mounted upon the carrier f t by means of a pair of screws 60. The lower end of the plate 58 is held in contact with a spreading shaft 62 upon which the carrier 4st is pivotally mounted. An adjustmentof the plate 58 relatively to the carrier at serves to adjust the sole-retaining jaw relatively to the upper engaging face of the plate 58. The tip line carriers 4.0 and breast line carriers 42 are connected by springs 614. and the heel gage carrier eta is connected to the breast line carriers 42 by a pair of springs 66. This inter-connection of the carriers with springs normally tends to force the gages toward the last and hold the upper contacting faces against the upper;

The sole-retaining jaws of the gages are normally held above the bottom of the last by means of springs 68 which are mounted in a chamber in the gage carriers and bear against the base of the plungcrs, see Fig. 3. The extent of projection of the sole-retaining jaws above the last may be controlled by means of a pair of locking nuts 70 which are threaded on a stem connected to the lower end of the plungers. The plungcrs are held from rotation in the carriers by means of a pin 7t mounted in the carriers and projecting into a keyway in the plungers. I

The gages can be preliminarily adjusted to get any desired projection of the sole edge beyond the upper of a particular style of shoe, and this adjustment may be used for all sizes of shoes of that style. When using the gages to position a sole on the shoe. the operator merely places the sole between the tip and breast line gages and forces it against the heel gage. The sole-retaining jaws project far enough above the bottom of the shoe, so that care is not required to get the sole in position. In bringing the pressing form down into contact wth the sole, the jaws are forced down across the edge of the sole. but always remain in contact with the sole, so that during the pressing oaeration the tops of the retaining j aws are substantial-ly flush with the top of the sole. The jaws thus positively retain the sole in position during the pressing operation and overcome any tendency the sole may have to shift.

The sole-locating gage are normally pressed toward the center of the jack, and in order to facilitate the insertion and removal of a lasted shoe, the gages are connected for simultaneous movement away from the jack. To this end the tip line and breast line carriers 4H) and 42 are keyed to parallel spreading shafts 76, Figs. 6 and 7, and the heel. gage carrier at is keyed to the sprezuling shaft 62 which is mounted at right-angles to the shafts 7 The shafts 6 are mounted in bearings 78 on the slide and in bearings 80 on the slide 20. The spreading shaft for the heel gage carrier is mounted in bearings 82 projecting from the slide 20. The shafts T6 are geared to the shaft 62 by means of beveled gears 8+: and S6 in such a manner that the movement of the shafts will tend to rotate all of the carriers away from the ack. A lever 88 for actuating the gages is secured at one end to the shaft (52, and the other end is connected by means of a trcadle rod 90. Fig. 1, with a foottreadle 92. When the gages have been spread by the treadle, the springs 6d and 66 will close the gages against the shoe upon releasing the treadle.

To give the gages freedom of movement in adjusting themselves to the contour of the shoe upper, the slots 99?, Figs. 3 and 6. in the carriers which fit over the keys 90 in the spreading shafts. are elongated to permit a limited relati movement of the carriers upon the shafts. The keys 96 are normally held substantially in the middle of the slots 94 by the gage actuating lever 88 which normally contacts with a pin 98 car ried by the slide 22. l/Vith the keys in this position the gage carriers have a freedom of movement both toward or away from the jack. The actuating lever 88 normally rests on the pin 98, due to gravity, when the treadle is not operated to spread the gages.

To adapt the jack for use with different sizes and styles of lasts, it is arranged to be vertically adjusted. To this end the jack carrier 28 is mounted upon a screw 100, Fig. 3, which projects down into the machine frame 102. An adjusting nut 104 is mounted on the screw 100 and is securely held in place on the frame by a pair of clips 106 which embrace a flangelOS on the bottom of the nut. The nut is held in adjusted position by means of a set-screw 110, Fig. 2, mounted in the machine frame and bearing against the flange 108.

The sole-laying machine illustratedin the drawings is similar in its construction and operation to the sole-laying machine shown in my Patent No. 1,146,341, dated July 13, 1915. In the patented machine, however, the pressing form is a sectional pressing pad which is progressively applied to the shoe, one section at a time, and has pressure placed upon the sections as they are applied to the sole. The use of a sectional pad is not entirely satisfactory, and the machine shown in the drawings is arranged to use a continuous pad. When using a continuous pad the pad'is brought down upon the sole all at one time and then pressure is progressively applied to the pad.

To. adapt the machine for the use of a continuous pad. the following changes have been made: The continuous pressing pad 112 is mounted upon a carrier 114 by a series of screws 116, Fig. 2. The carrier is made up of a series of sections 118 which are pivotally joined together and suspended between a rod 120 anchored to a post 122 on the jack carrier, and a rod 124 mounted in a pad-applying frame 126. The rod 120 is mounted. in a yoke 128, Figs. 2 and 8, which is secured on a plunger 130 pivotally mounted in the post 122. The plunger 130 is arranged to yield vertically against a spring 132 clamped between the end of the plunger 130 and an adjusting nut 134. The rod 124 is supported at each end in blocks 1.36 which are slidably mounted in slots 138 in the arms 140 of the pad-applying frame 126'. The blocks 186 are normally pressed toward the front of the frame 126 by means of springs 142 held between the blocks 136and adjusting screws 144-, so that the pad carrier 114 is yieldingly mounted. The post 122 may be adjusted longitudinally on the jack carrier 28 to properly position; the pressing pad112. so as toregister with the sole on a lasted and 4. The axis of the pivots of the pad applying frame 126 approximately coincides with the axis of the rod 120, on which the pad is pivoted.

The pad-applying frame has an oscillatory movement to and away from the shoe to place the pad upon the sole for laying it, and to withdraw the pad from the sole to permit the removal and replacement of a shoe. This movement of the pad-applying frame is secured through a connection with the cradle which carries the form pressing rolls. The cradle consists of a pair of sectors 1.52. each having a hub 154 pivotally mounted upon a shaft 156 secured to the machine frame, see Fig. 4. The upper ends of the sectors 152 are rigidly spaced apart by means of a series of tie rods 158. On the forward or leading edge-of each sector is mounted a stud 160. Figs. 3 and 4, which carries a roll 162. The rolls 162 fit within a cam groove formed on the inner face of each of the arms 140 of the pad-applying frame. The cradle moves across the form in laying a sole, and in the first part of the movement of the cradle, the roll 162 travels in a section 164 of the cam groove, which acts to quickly place the pad in contact with the entire sole at one time. After the pad is placed on the sole the roll 162 moves in a section 16 6 of the cam groove which has a shape similar to the bottom face of the last, and as the roll advances along the cam groove the pad is pressed down upon the sole. To operate the cradle anarm 168 is united with each of the hubs 154 of the cradle sections, Figs. 3 and 4, and these arms are connected by a link 170 with an eccentric 172 on the main driving shaft 174.

The pressing rolls for applying pressure to the pad, 6, consists of two roller disks 1.76 mounted upon a shaft 178. The shaft 178 has a portion projecting beyond each roll which is mounted in a bearing block 180. The blocks 1.80 are slidably mounted in radial slots 182 formed in the sectors 152 and are normally pressed against the bottom of the slots by springs 184 held between the blocks 180, and a pressure adjusting screw 186. The adjustment of the springs 184 determines the amount of pressure which is applied to the form by the rolls 176.

Each ofthe sections 118 of the pad car- .tion directly above the pad is chambered for the reception of a cushion 190, which preferably is leather. IVith the construction described above it will be observed that the pressure is applied at each side of the pad carrier and not directly above the sole. The pressure in turn is imparted to the sole from the pad carrier through the cushion 190 and pad 112.

In the progressive pressure laying machine described in the Patent No. 1,146,341, above referred to, the pressing cradles are actuated and controlled by a mechanism described as embodied in a rolling pressure leveling machine shown in my Patent No. 861,746, granted July 30, 1907. IVith this controlling mechanism the cradles, when in operation, have an oscillation out over the shoe and back again, which would be repeated as often as the operator desired. The forms and cradles are always removed from the shoe before they are disconnected from their actuating mechanism. In operating the two sets of pressing forms and cradles the controlling mechanism of each set is so arranged that, when one set is connected with its actuating mechanism, the other set is disconnected from its actuating mecha nism.

It has been found desirable in this type of pressing machine to permit the pressure to remain upon the sole for an appreciable period of time in order to more exactly conform the sole to the shape of the shoe bottom. To arrange the actuating and contr lling machanisms of the Patent No. 1,1e6,34l1, to give a dwell of pressure upon the sole, and to adapt the actuating mechanism to give a greater variety of pressing operations, the following changes are made: Each set of the forms and cradles is operated from an independent driving mechanism, to which it is connected and disconnected by the usual clutch. To operate each set of the forms and cradles independently, the clutch controlling mechanism described in the Fat ent No. 1,145,341 is used. This controlling mechanism includes a foot treadle 192 mounted on a rod 19% which carries a clutch cam 196. The cam 196 works against a roll 197 on a clutch controlling lever 198 which is connected by a link 200 and bellcrank 202 with a clutch 203. The clutch cams 196 of each of the controlling mechanisms are connected by a rod 204:, Fig. l. lVith this connection, when one set of forms and cradles is connected with the clutch, the other is disconnected.

To provide the independent operation of the cradles and forms for a dwell in pres,- sure on a sole, each set of cradles and forms is arranged to be automatically disconnected from the driving mechanism when it has been moved from a position of clearance, that is, with the form removed from the shoe, to a position of pressure, that is, with the form held under pressure on the sole. In automatically disconnecting the form and cradle from the driving mechanism, a roll 206 on the clutch controlling lever 198 is forced into a notch 210 in a controlling disk 212 mounted on the driving shaft 174C by means of a spring 214. A notch 216 is formed in the disk 212 diametrically opposite the notch 210, so that the driving shaft will make but one-half of a revolution before it is automatically disconnected from the driving mechanism. In making one-half revolution of the driving shaft 174, the cradles and forms are moved from the position of clearance to the position of pressure, or vice versa. If the cradle and form are in the position of pressure when the machine is automatically stopped, they will remain in this position as long as the operator desires. Further, each cradle and form may be applied to and removed from the shoe as many times as the operator desires, and each shoe receives its treatment independently of the other shoe.

To increase the speed of operation of the machine for ordinary working conditions, the form and cradle clutch controlling mechanisms are arranged to be connected together so that they may be both operated at the same time. In this way, one form can be arranged to be in a pressure position upon the sole while the other is removed, and remain in this position until a new shoe has been placed upon the free jack, and then pressure brought upon the newly jacked shoe and removed from the shoe which has been under pressure. This simplifies the operation of the machine and permits the operator to hold the shoe under pressure for any desired time. To this end, the clutch controlling lever 198 on the left, viewing Fig. 4, is mounted upon a shaft 218, and the lever 198 on the right is mounted upon a shaft 220. The shafts 218 and 220 are concentrically mounted, but independent of each other, so that they may be moved in separately con necting each form and cradle with its actuating mechanism. A sleeve 222 is secured to the end of each of the shafts 218 and 220, and an intermediate shaft 224: is loosely mounted in the sleeves 222 between the shafts. The shaft 224 is connected with the shafts 218 and 220 by means of clutches 226 which have tongues 228 projecting into slots 230 in the sleeves 222.

A lever 232 is pinned to the shaft 221 and has a foot treadle 234: on its forward end which is located at the front of the machine. The foot treadle is normally supported in an elevated position by a tension spring 236 which is connected between the lever 232 and the machine frame. The slots 230 in the sleeves 222 have a greater circumferential length than the tongues 228 in the clutches 226. When the treadle lever 232 is in elevated position the tongues 228 are in the position shown in Fig. 8, which permits a movement of the shafts 218 and 220 rela tively to the shaft 224: to allow the separate connection of the two sets of forms and cradles with their actuating mechanisms. If, however, the shaft is rotated in a counterclockwise direction, Figs. 1 and 8, by the treadle 234 the clutches 236 will simultaneously rotate the shafts 218 and 220 and connect both sets of forms and cradles with their actuating mechanisms.

Under normal conditions the treadle 234 will be used entirely in operating the cradle and forms, but at any time the treadles 192 may be used to separately operate their respective sets of forms and cradles. Since the driving clutches for the sets of forms and cradles are automatically stopped b the disks 212 when the main driving shafts ave completed a half revolution, each set of forms and cradles will move from a position of clearance to a position of pressure, or vice versa, and stop. To complete the operation of each set of forms and cradles, the respective treadles must be again actuated to complete the revolution of the main driving shaft. A shoe may remain under pressure as long as desired, and the pressing form may be removed from and applied to one shoe as many times as is desired without interfering with the operation of the other cradle and form. With this combination of treadles, also, the pressing cradles can be simultaneously operated to move into and out of pressure position either together or alternately.

The treadle operated mechanisms which are used to separately connect the two sets of forms and cradles with their driving clutches are so arranged that they will not interfere with the simultaneous connection of both sets of driving clutches by the treadle 234:. I

To accomplish this the treadles 192 are held in a neutral position by a pair of spring controlled. plungers 236 which are mounted on the machine frame and bear against the treadles. When the treadles are in neutral position, both clutch cams 196 are withdrawn from the rolls 197 in the clutch controlling levers 198, as shown in dotted lines in Fig. i. The treadles 192 will always be returned to the neutral position by the plungers 236 when they are not in use so that the machine parts will be in position for the operation of the two sets of forms and cradles by the treadle 234.

The operation of the machine will be apparent from the above description of the operation of the several parts of the machine.

Having thus described my invention, what is claimed as new, is:

1. The combination with a jack for supporting a lasted shoe, of a series of gages for holding a sole in a predetermined position upon the shoe comprising, a heel gage for determining the longitudinal position of the sole, a pair of breast line gages and a pair of tip line gages for determining the transverse position of the sole, and means for adjusting the breast line and tip line gages longitudinally of the shoe.

2. The combination with a jack for supporting a lasted shoe, of a series of gages for holding a sole in a predetermined position upon the shoe comprising, a heel gage for determining the longitudinal position and a plurality of side gages for determining the transverse position of the sole, and means to simultaneously adjust the jack and gages for treating different lengths of shoes.

3. The combination with a jack for supporting a lasted shoe, of a; series of gages for holding a sole in a predetermined position upon the shoe, all of said gages being mounted for movement in unison, and arranged to be independently movable to adapt themselves to the position of the shoe, and means to move said gages away from the jack for the purpose of inserting and removing the shoe.

1. The combination with a jack for supporting a lasted shoe, of a movable heel gage carrier, a plurality of movable side gage carriers on each side of the jack, gages on the carriers to contact with the shoe upper, and asole-retaining jaw yieldingly mounted on each of said carriers and normally projecting beyond the bottom of the shoe.

5. The combination with a jack for supporting a lasted shoe, of a series of spread ing shafts, a series of sole-retaining gages keyed to said shafts, and means for yieldingly forcing said gages toward the shoe, the key slots in said gages being enlarged to allow the gages to move relatively to the shafts to adjust themselves to the shoe.

6. The combination with a jack for supporting a lasted shoe, of a series of spread-- ing shafts geared together for simultaneous spreading movement, a series of soleretaining gages keyed to said shafts, means for yieldingly forcing the gages toward the shoe, and means for actuating the shafts to spread the gages, for the purpose of removin and inserting a lasted shoe.

A sole-pressing machine having, in combination, a sole-pressing form, a shoe supporting jack, mechanism for relatively actuating the form and jack to apply the form to the sole, means to progressively apply pressure to the form, and means for retaining the sole in a predetermined position on the shoe during the pressing operation.

8. A sole-pressing machine having, in

combination, a jack for supporting a lasted and a plurality of sole-retaining jaws surroundingthe jack constructed and arranged to adapt themselves to the position of the shoe while engaging the edge of the sole to hold the sole in a predetermined position relatively to the shoe during the pressing operation.

9. A sole-pressin machine having, in combination, a jack ior supporting a lasted shoe, a form for engaging the sole of a shoe, means for applyingpressure to the form, and a plurality of sole-retaining jaws mounted on the jack, and yielding means for normally projecting said jaws beyond the surface of a sole on the lasted shoe whereby the pressing form may seat itself on the sole while the sole is held in a predetermined position by said jaws.

10. A sole-pressing machine having, in combination, a jack for supporting a lasted shoe, a form for engaging the sole of a shoe, means for applying pressure to the form, a plurality of sole-retaining jaws mounted on the jack to hold the sole in a predetermined position relatively to the shoe, a series of springs connecting the jaws for normally forcing the jaws toward the shoe, and means to simultaneously withdraw the jaws from the shoe preparatory to jacking the lasted shoe.

11. A sole-pressing machine having, in combination, a jack for supporting a lasted shoe, a form for engaging the sole of a shoe, means for aoplying a rolling pressure to the form, a series of sole-retaining gages mounted on the jack and arranged to engage the edge of the sole comprising, an end gage and a plurality of side gages, and means for adjusting the side gages longitudinally'ot the shoe for treating different lengths of shoes, said gages being yieldingly mounted to permit the "form to seat itself upon the sole.

12. A sole-pressing machine having, in combination, a sole-pressing form, a shoe supporting jack arranged to support a lasted shoe with the bottom side up, means to relatively actuate the form and ack to bring the form into engagement with the sole and to apply pressure to the form, a series of gage carriers mounted on said jack and arranged to adapt themselves to the position of the shoe, and jaws yieldingly mounted in said carriers and arranged to project above the bottom of the shoe to engage the edge of the sole, whereby the jaws will hold the sole in position while the form is being seated upon the sole.

13. The combination, with a ack for supporting a lasted shoe, of a series of gage carriers mounted upon the jack and arranged to surround the shoe, said gage carriers being independently yieldingly movable to adapt themselves to the position of the shoe 011 the jack, and sole retaining jaws mounted on said gage carriers and adjustable toward and from the shoe to vary the extension of the sole over the edge of the shoe.

BENJAMIN F. MAYO.

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