US1962315A - Machine for treating shoe parts - Google Patents

Description

J1me 1934. L. s. MACDONALD MACHINE FOR TREATING SHOE PARTS Filed June 13, 1932 6 Sheets-Sheet l June 12, 1934. L. s. MACDONALD 1,962,315

MACHINE FOR TREATING SHOE PARTS Filed June. 13, 1932 6 Sheets-Sheet 2 Fig. 2.

WVE/WUH;

June 12, 1934; L. s. MACDONALD MACHINE FOR TREATING SHOE PARTS 6 Sheets-Sheet 3 Fig". 5.

Filed June 13, 1932' M/E/v 727R June 12, 1934. s. MACDONALD MACHINE FOR TREATING SHOE PARTS Filed June 15, 1932 6 Sheets-Sheet 5 June 12, 1934. 5 MACDQNALD 1,962,315

MACHINE FOR TREATING SHOE PARTS Filed June 13, 1932 6 Sheets-Sheet 6 Fig. 9

Patented June 12, 1934 PATENT OFFICE MACHINE FOR TREATING SHOE PARTS Lester S. Macdonald, Beverly, Mass., assignor to United Shoe Machinery Corporation, Paterson, N. J., a corporation of New Jersey Application June 13, 1932, Serial No. 616,908

Claims.

This invention relates to machines for treating shoe parts and is herein illustrated as embodied in a machine for applying a conditioning material such as solvent to the cemented portion of a shoe sole intended to be permanently attachedto a shoe by means of cement.

In the manufacture of compo shoes, it is usual to apply cement to the soles and to the shoes, to allow the cement to dry, and then just as the operator is ready to apply a sole to a shoe, to soften or activate the cement. by applying a solvent to the sole or to the shoe or to both. Usually the cement is applied to the soles in marginal bands extending from approximately the heel breast lines around the margins of the flesh sides of the soles back to the heel breast lines. This leaves dry spaces or islands in the centers of the foreparts of the soles and 1mcoated portions at the heel ends of the soles.

An important object of this invention is to provide an improved machine for treating pieces of work such as shoe soles by 'means of which a conditioning material such as a solvent may be quickly and, uniformly applied, only to those parts which it is desired to coat, by unskilled operators with precision and at a minimum cost.

Accordingly, a feature of the invention resdes in a machine for applying a conditioning material such as a solvent substantially simultaneously to the marginal portions of the attaching or flesh surfaces of the soles without treating the uncemented mid portions thereof and without soiling or staining the tread surfaces. By thus limiting the application of material to the marginal cemented areas of the soles, the waste of a rather expensive material is avoided and the danger that the solvent may penetrate the uncemented area of the sole where there is noabsorption by the cement, staining the grain surfaces of the soles, is overcome. In theillustrated machine, protection of the midportion of a sole is secured by masking, and a masking device is incorporated in a sole support upon which the sole is mounted in inverted position with the cemented side down so that an excess of solvent may be applied to the cemented area with the assurance that the unused portion of the solvent will drain or fall away from the sole without soiling the tread surface thereof.

As illustrated, the machine is arranged to flow the solvent simultaneously upon all portions of the cemented area, the sole being positioned to drain without soiling those portions which are not to be coated, and the coated and uncoated portions being separated by means of a sharp ridge upon the support against which the sole is pressed. Before the provision of machines for the application of solvent is was customary to utilize a hand brush, but this involved definite disadvantages which are overcome by flowing the solvent upon the cemented area as there is no tendency to disturb the cement upon the soles,

as may readily happen when the solvent is applied by the brush, because the softened cement is easily pushed around by the brush bristles 5 and transferred from one area to another. Furthermore, there is no danger of part of the treated cement drying out before the whole area has been treated. This may very readily happen with manual application, however, because of the quick-drying properties of both the solvent and-the cement. The illustrated support is shaped to receive a molded sole with a minimum of distortion of the work.

in still another aspect invention resides in the provision of a support embodying a nozzle through which the solvent may be delivered, and caused to flow over the cemented area of the sole. Preferably and as illustrated, the nozzle directs a stream of solvent from the uncemented area 30 outwardly across the cemented margin of the sole whereby this normal direction of the stream of solvent tends in itself to avoid wetting the edges of the tread surface of the sole and permits the excess to drain away from the sole without 5 touchin any portions thereof.

The high volatility of the solvent, which, how ever, is desirable in that it speeds the drying of the cement after the sole has been attached to the shoe and hence reduces the quantity of apparatus needed for clamping the soles to the shoes, renders it desirable to restrict evaporation and loss of solvent as much as possible during use of the machine. Accordingly, the illustrated applying apparatus is positioned within a closed chamber, and features of the invention are to be recognized in mechanism which is provided for positioning and gripping a sole upon a work carrier movable to carry the work into and to remove it from the chamber, in means for clamping a sole on a support within the chamber to which it has been presented by said carrier, and in mechanism for automatically opening and closing the chamber as the work is presented and withdrawn.

One embodiment of the invention is illustrated in the accompanying drawings, in which Fig. l is a side elevation with one work carrying slide in extended or loading position Fig. 2 is a similar view in front elevation, and Fig. 3 is a similar view in plan;

Fig. 4 is a vertical section taken longitudinally of the machine through the center of a sole support and showing a work carrier in closed position with a sole clamped to the support;

Fig. 5 is a rear elevation on a larger scale of part of the operating mechanism at the rear of the machine;

Fig. 6 is a horizontal section on the line VI-VI of Fig. l but on a larger scale, showing in plan the work locating and supporting gages;

Figs. '7 and 8 are transverse sections on the lines VII-VII and VIIL-VIII of Fig. 6 through the sole engaging ends of the gages;

Fig. 9 is a detail plan view of a sole clamp;

Fig. 10 is a large scale view in plan of the work support showing how it is constructed to serve as a nozzle;

Fig. 11 is a longitudinal vertical section through this work support and a sole clamp, showing a sole in position;

Fig. 12 is a perspective view of a molded sole to the flesh side of which a marginal band of cement has been applied;

Fig. 13 is a transverse section on the line XIII--XIII of Fig. 11 through the support and the shank portion of a sole positioned thereon; and

Fig. 14 is a similar transverse section upon the line XIVXIV of Fig. 11 through the support and the forepart of a sole.

In order that the machine may be used for either right or left soles, it is arranged as a twin machine. Upon a support 14 are hinged at 16 (Figs. 1 and 4) casings 18 providing closed chambers 80. With each of these there is associated a solvent applying mechanism and a carrier 30 embodying a sole positioning and presenting mechanism so that a left sole may be presented to the operating mechanism in one chamber and treated while a right sole is being positioned in its carrier. These mechanisms, aside from the fact that certain parts are reversed because of their side-by-side relation, are exact duplicates and a description of one will apply to the other. The various parts of the machine will be described in the order in which they become effective in the normal operation of the machine.

Thus an operator presents to the machine a sole 20 (Fig. 12) which is molded to substantially the shape which it will have in the completed shoe and to the flesh side of which there is applied a marginal band 22 of cement. This band Q leaves a dry space or island 24 in the center of the forepart of the sole and terminates approximately at the heel breast line, leaving the heel end portion 26 unooated. Such a sole 20 is positioned in a work carrier 30 (Fig. 1) by locating the heel end between interconnected gage fingers 32 (Fig. 6) the enlarged ends 34 (Fig. 3) of which engage the sides of the sole. The gage fingers are articulated for equal and opposite movement by interengaging segmental racks. They are pivotally mounted upon a block 36 bolted to a casting forming an end plate 38 which forms the end of the work carrier 30 and are spring pressed normally to a limiting position determined by an adjustable stop screw 40 threaded in the end plate 38. The carrier is also provided with a pair of gages 42 having forked terminal portions 44 adjustably secured thereto which are adapted to position and to support the forepart of the sole as it is pushed into the machine by movement of the work carrier.

These gages 42 are simi arly articulated and spring pressed to a limiting position determined by an adjustable stop screw 46. The heel end of the sole is supported upon a pin 48 (Figs. 4 and 11) carried at the end of an arm 50 which is secured by a screw 52 (Fig. 6) to the end plate 38 of the carrier. To hold the sole on this pin there is provided a displaceable gripper 54 pivoted to the end plate 38. This gripper is normally held in a raised position by a spring coiled around its pivot pin and may be depressed into work holding position by pushing in a slide 56 (Fig. 4) by meansof an operating handle 58. It will be noticed that in gripping position the handle 58 rests on a ledge 59 on the front plate 38, and. that the reduced forward end of the plunger 56 overlies the gripper 54 in such a way as to lock it in sole engaging position.

The carrier 30 comprises this front plate 38 mounted upon a pair of slide rods 60 journaled in the casing 18 and made rigid by a cross-bar 62 (Figs. 3 and 5) at their other ends. To this cross-bar there is secured a cord 64 connected through reducing pulleys 66 to a tension spring 68 (Fig. l) which tends always to pull the carrier to its forward or loading position. The termination of this movement is cushioned by means of an air bumper comprising a cylinder '70 which cooperates with a fixed piston '72 (Fig. 3). Upon one rod of the carrier is clamped a finger '74 for a purpose which will later appear. When the carrier has been moved to sole treating position, as shown in Fig. 4, it is held there by a spring-pressed latch '76 under the chamber at the front end of the machine.

When the sole has been positioned in the slide or carrier 30, it is presented to the operating mechanism by manually pushing in the carrier against the tension of the spring 68, thereby to carry the sole 20 into a chamber 80 formed in the upper portion of the casing 18 and closed by a glass cover plate 82 slidingly mounted in a frame 84 secured to a top casting 86. This top casting is secured by screws to the casing 18 and the glass plate 82 allows the operator to inspect the action of the solvent applying mechanism. The frame 84 is long enough to allow the cover plate 82 to be moved to an open position. On the top of the machine there are inclined tables 88 provided with retaining ribs designed for the convenient support of a supply of previously cemented soles and these tables are mounted on arched supports 89.

In order that this chamber 80 may be kept closed as much as possible to reduce loss by evaporation, it is provided with a displaceable door 90 (Fig. 4) which is supported upon parallel links 92 and 94 pivoted upon a bracket 96 secured to the top casting 86. The arrangement is such that this door is automatically raised to open position when the work carrier is moved into operative position where the door opening is closed by the end plate 38 and is released and drops to closed position as the carrier is withdrawn. It will be seen from Fig. 3 that the outer link 92 is a two-armed affair the side pieces of which are joined by cross pieces 98 and 100. To the intermediate link 94 there is secured a coiled spring 102 tending to lift the door to its raised or open position, while secured to the pivot of the outer links 92 is a crank 104 (Figs. 1 and 4) linked to a rod 106 extending along the outside of the casing 18 and connected at the rear of the machine to a crank arm 108. This arm 108 is on a cross rod 110 which is provided with a rocker arm 112 rigidly secured to said rod and having SDI ; has a vertical a projection on its hub for engagement ,by a latch finger 116. The latch finger 116 is loosely pivoted upon a shaft 120, being held against lateral displacement thereon by collars 122 (Fig. 5). A light spring 124 extends between the hub of this latch finger 116 and the rocker arm 112 so as thereby to maintain the latch finger 116 ready for cooperative engagement with the projection on the rocker arm. When the door is in raised position, as shown in Fig. 4, it is held there by the latch 116. As the slide or carrier 30 is moved inwardly to carry the sole to operating position, the door 90 is automatically lifted to raised position by engagement of the finger '74 on the slide with the curved under side 126 of the rocker arm 112, thereby swinging the crank 108 which transmits movement through the rod 106 to lift the door. As soon as the door reaches the upper limit of its movement it will be held there by the latch 116. When the work carrier slide is moved to open or loading position, the finger 74 on the slide rods will engage the latch finger 116 and release the door, allowing it to be closed by the force of gravity against the light coiled spring 102 secured to the link-94.

Within the closed chamber the sole is positioned over a support 130 which, for convenience in manufacture, comprises an upper casting 132 and a lower casting 134 (Figs. 4 and 11). lower casting has a tapered projection 136 seated in a suitable recess, thus allowing it to be easily removed and yet providing a tight joint between said casting 134 and a pipe 138 leading to a pump 140 to be later described. The lower casting 134 passage 142 communicating through a series of radial passages 144 with an annular passage 146 formed in the upper casting 132 and provided with a series of small openings 148 acting as nozzles through which solvent may be applied to the sole. These nozzle openings 148 lie just outside a raised portion or sharp ridge 150 formed on the upper surface of the support 130. The shape of the ridge 150 corresponds in the forepart of the sole to the outline of the dry space or island 24 indicated in Fig. 12, while along the shank portion of the sole the ridge occupies a mid position and terminates in two branches 152 forming a Y which separates the uncoated heel portion of the sole from the shank portion thereof. When the sole is clamped in position on the support, in a manner to be later described, the coated portion of the sole is left unshielded while the mid portion of the forepart, and the heel part, are definitely protected or masked so that no solvent can get to them. The longitudinal and transverse vertical profiles of the support 130 correspond to those of a molded sole when in inverted position, and it will be noted that the marginal ledge 154 of the support slopes outwardly and downwardly (Figs. 11, 13 and 14), being generally parallel to the coated under side of the inverted sole clamped thereon and tending to direct the fiow of solvent which normally willfill the space between the sole and the ledge 154 from the mid portion of the sole across the cemented margin all the way to the edge thereof. It should also be noted that the excess solvent drains away from the sole, so that there is no danger of soiling the edge of the grain surface thereof, and that the general direction of the flow of solventis such that the coated surface lies between the nozzle openings and the edge and tread surfaces of the sole, thus further protecting these surfaces. Because of the arrangement of ridges, ledges and nozzle openings, a number of sizes may be treated by use of the same support. If, before the sole carrying slide 30 is moved into operative position above the chamber, the work support 130 has been accidentally slightly rotated, turning the tapered plug 136 in the recess formed in the pipe 138, then a sole will not be correctly positioned on the support and, therefore, provision has been made for repositioning the sole support. To this end the lower casting of the support is cut to form a V-shaped notch 156 (Fig. 10) adapted to cooperate with the pin 48 of the heel gripping device on the carrier, thereby to turn the support 130 into the correct position when the carrier is moved into the chamber 80.

In order to clamp the inverted sole firmly against the ridge 150 on the work support 130, the machine is provided witha clamping plate 160 (Fig. 9), which is mounted on a pivot'16l at the outer end of an arm 162, the other end of which is clamped to a cross-bar 164 (Fig. 4). The arm 162 is made of resilient material and is passed loosely around the cross shaft 164 before being secured thereto, thereby providing some yield as the clamp is brought against the sole. Turning movement of the clamp plate 160 with respect to the arm 162 is limited by a cotter pin 166 (Fig. 9) passing between flanges 168 on the upper side of said clamp. To these flanges there is secured 'a spring finger 170 which presses against the shank portion of the sole and is so bent as to impart a firm pressure against the sole irrespective of variations in thickness thereof.

Solvent is supplied to the pump 140 for application to the sole from a sump or well 1'72 (Fig. 4) formed in the frame 14 and provided with a filling cup 174 (Fig. 1) and a drain spigot 176. The lower surface 178 of the chamber 80 slopes toward a drainage opening 180 in which is a strainer 182 so that unused solvent flows back into the sump 172. The pump 140 is provided with a double piston 184-rigidly secured to the pipe 138 while the reciprocable cylinder 186 of the pump is carried upon a bail 188 secured to a lever 190 which is mounted on a jack shaft 192 journaled in the casing 18 and provided upon the outside of the casing with a rocker arm 194 having at its end a cam roll 196. The cylinder is guided in its movements by the double piston and is provided with a valve 187. A gasket 193 is interposed between the casing 18 and the top of the sump 1'72 and a swinging bolt 199 is provided for clamping the casing in operative position. This may be released, however, to allow the casing to be tipped back, thus withdrawing both the strainer and the pump from the well and rendering the parts readily accessible for cleaning and repair. In terposed between the casing 18 and a base 200 (Fig. 2) is a storage chamber 202 having a door 204. Pivoted on this base are the operating :treadles 206 which, through treadle rods 208 supply power under the control of the operator for the actuation of an operating cam 210 (Fig. 1). This cam is pivoted upon the cross shaft 120 and is made with duplicate lugs 212 (Fig. 5) so that levers of the same construction may be used upon either side of the machine. One of these lugs 212 is engaged by the end of a coiled spring 214 the outer end of which is secured to a disk 216.

To permit adjustment of the tension of the l movable pin 222 passing through a plate 224 ii pinned to the outer end of the shaft 120. The shaft 120 is secured against rotation in the casing 18 by a clamp screw 226 so that the tensioned spring 214 tends to throw the cam lever 210 to its rearmost position, as shown in Fig. 1. Its movement in this direction is cushioned by a dash pot 230 having an adjustable control valve 232. The piston within this dash pot is connected to a tail 234 upon the cam lever 210. The cam lever 210 may be drawn to forward position against the tension of the spring 214 by power exerted through a connecting rod 236 joined at its forward end to a bell crank 238 having at its lower end a ratchet plate 240. This bell crank 238 is pinned to a shaft 242 to which there is also secured an arm 244 (Fig. 4) joined to the treadle rod 208. Another arm 248 is also secured to this shaft 242 and has an adjustable abutment screw 250 which is positioned for engagement at the proper time with the tail of the latch 76 holding the carrier 30 in the chamber 80, thereby to release the latch,

To hold the sole clamped and the spring energized until the operator is ready to apply the solvent and remove the sole, there is associated with the ratchet 240 an operator-controlled pawl 252 (Fig. 1) mounted at the lower end of a lever 254 having a handle 256 and pivoted upon the casing 18. The upper end of this lever 254 has a plunger 258 spring pressed into engagement with the lower side of a hump plate 260 so as to hold the lever 254 in operative engagement with the ratchet 240 or, when the plunger 258 is at the other side of the hump on the plate 260, to hold said pawl entirely out of engagement with the ratchet. An extension 262 of this lever 254 is positioned for engagement with a pin 264 on the ratchet so that if said lever has been thrown manually out of operative relation to the ratchet it will be brought back into operative relation thereto at the next operation of the machine.

Actuation of the sole clamp 160 is effected through the operating cam 210. To this end said cam is provided with a dip 266 below a circumferential surface 268 into which dip may drop a roller 2'70 on a lever 272 secured to the outer end of the jack shaft 164 which carries the sole clamp. Thus, when the cam lever 210 is in the position shown in Fig. 1, the roller drops in the dip and the clamp is raised, and when the lever 210 is drawn forward the clamp is brought down against the sole, as shown in Fig. 11, as the roller 270 rides out of the dip 266 and on to the surface 268. For the operation of the pump the cam lever 210 is provided with a closed cam track 274 in which rides the roller 196 attached to the lever 194 which, through the shaft 192, moves the lever 190 secured to the pump bail. In the position shown in Fig. 1 the pump has been emptied and when the cam lever 210 is rotated clockwise, as viewed in Fig. 1, against the tension of the spring 214, the pump cylinder will be depressed into the sump to the position shown in Fig. 4 to force solvent into the same through the valve 187 so that when the pawl 252 is released, setting free the spring 214, the solvent will be forced continually and gradually through the passages communicating with the nozzle openings 148 and applied to the sole. The velocity of flow of the solvent is controlled by a perforated plug 276 in the lower end of the projection 136 at the bottom of the sole support 130.

In the use of the machine, a sole 20 is first positioned in the gages on the carrier 30, as shown in Figs. 1 and 6, and gripped therein by pushing down the finger lever 58. The carrier is then pushed into the chamber 80. As its movement starts, the finger 74 on the carrier rods will engage the rocker arm 112 and lift the door 90, thus preventing any interference therewith. This door will be latched in upper position, as shown in Fig. 4, by the latch 116 and the sole will move in over the support 130 under the raised clamp 160. At the completion of the inward movement of the sole carrier, the opening in the chamber will be closed by the plate 38 on the work carrier slide and the slide will be held in its innermost position against the tension of the spring 68 by the latch '76. Depression of the treadle 206 will first allow the latch '76 to lock the slide and then, upon continued movement, will rotate the operating cam 210 to load or wind up the spring 214, depressing the sole clamp 160 and filling the pump cylinder 189. This mechanism will be held in its displaced position by the pawl 252 until the operator moves the finger piece 256, and he may wish to delay release of the pawl until there is a shoe at hand ready to receive the prepared sole. Upon release of the pawl the heavy spring 214 on the cross shaft 120 will become effective to return the operating mechanism to the position shown in Fig. 1. This movement will be gradual under the control of the dash pot 230. During such movement the pump cylinder 186 will be lifted to force the solvent through the nozzle openings 148 to cause the solvent to flow outwardly over the coated margin of the inverted sole and, by reason of the position of the sole, to drain therefrom without staining any of the uncoated surfaces thereof. The sole clamp 160 will be retained in position until the very end of the movement of the lever 210, until the roller 2'70 drops into the dip 266, whereupon the clamp will be lifted. At this time, the abutment screw 250, carried upwardly as the cam lever 210 pulls on the rod 236, will trip the latch 76 to release the work carrier slide 30, thus allowing the spring 68 to become effective to return the work carrier to loading position, as shown in Fig. 1. Near the end of this movement the finger '74 on one of the carrier rods will engage the latch 116 and release the rocker arm 112, thereby permitting the door 90 to drop into closed position again. This forward movement of the slide 30 is cushioned by the bumper '70. When the carriage reaches the end of its forward movement, the pin 264 on the ratchet 240 will engage the finger 262 on the pawl lever 254 and move the pawl back into engagement with the ratchet ready for the next operation. The sole may then be removed from the carrier slide by lifting up the finger piece 58, thereby relieving the heel gripping finger 54.

The method of preparing outsoles set forth forms the subject-matter of a copending application Serial No. 581,913, filed December 18, 1931, in my name.

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

1. In a solvent applying machine, a support for an inverted sole having a marginal coating of cement, said support having portions which mask an area of said sole within the marginal coating, and means including a nozzle under said sole arranged to direct a flow of solvent upon the unmasked cemented portion of the sole toward the edge thereof.

2. In a solvent applying machine, a member for supporting a cemented sole in inverted position with the cemented surface facing downwardly, and a nozzle underneath said surface for delivering solvent upwardly to the cemented surface of the sole whereby the excess solvent can drain from the sole without coating the uncemented upper and edge surfaces of the sole.

3. In a machine for applying conditioning material to a shoe part having a marginal band of cement, a substantially flat support having a raised portion within the borders of the support for contact with the shoe part to protect from the conditioning liquid a mid portion substantially corresponding to an uncemented area.

4. In a solvent applying machine, solvent applying means and a support for a sole having a marginal band of cement, said support having a ridge for contact with the sole, said ridge enclosing a space on the forepart of the sole corresponding to an uncemented area thereon and with the support serving as a shield or mask to protect that area from the application of solvent.

5. In a solvent applying machine, a substantially sole-shaped support having a Y-shaped ridge adjacent to the shank portion of the sole adapted to press against the sole thereby to define the area to which solvent is to be applied and to protect a portion of the heel end of the sole separated by the forked end of the Y.

6. In a solvent applying machine, a substantially sole-shaped support provided with an up-' standing ridge enclosing an uncemented portion of the forepart of the sole to protect it from the application of solvent, said ridge extending medially along the shank portion of the sole and splitting into two branches extending to the edges of the sole thereby to protect the imcemented heel portion of the sole from the application of solvent.

7. In a solvent applying machine, a substantially sole-shaped support provided with a ridge enclosing an uncemented portion of the forepart of the sole to protect it from the application of solvent, said ridge also extending medially along the shank portion of the sole.

8. In a solvent applying machine, a substantially sole-shaped support provided with a ridge enclosing an uncemented portion of the forepart of the sole to protect it from the application of solvent, saidridge extending medially along the shank portion of the sole and said support being provided with apertures outside the ridge for use in the application of solvent.

9. In a solvent applying machine, a substantially sole-shaped support provided with an upstanding ridge enclosing an uncemented portion of the forepart of the sole protected from the application of solvent, said ridge extending medially along the shank portion of the sole and splitting into two branches extending to the edges of the sole thereby to protect the uncemented heel portion of the sole from the application of solvent, said support being provided with a plurality of apertures along one side of said ridges.

10. In a solvent applying machine, a substantially sole-shaped support having a ridge to separate an uncemented portion of the sole from a cemented portion thereof as the sole is placed in inverted position upon the support, means for delivering solvent to the sole adjacent to the ridge on the support, said support sloping gradually away from the ridge in close relation to the under surface of the margin of the sole thereby to direct the flow across the cemented portion and to allow the solvent to drain from the support.

11. In a solvent applying machine, a sole support for holding a sole in position to drain without soiling the uncemented portion of the sole, said support contacting with the mid portion of one face of the sole and constructed and arranged to protect said portion from the application of solvent leaving the margin exposed, a clamp coacting withsaid support to hold the sole in close contact with the support, and a solvent nozzle pointed toward the exposed margin for applying more than the needed quantity of solvent to the exposed cemented area on the face of the sole around the protected area, allowing the excess solvent to fall away from the sole.

12. In a solvent applying machine for an outsole having a marginal band of dried cement upon the flesh surface thereof, means for supporting a sole with its flesh surface down constructed and arranged to protect the uncemented mid portion thereof, means for clamping the sole in firm contact with the supporting means, and means for flowing solvent unwardly upon an exposed marginal cemented area.

13. In a solvent applying machine for an outsole having a marginal band of dried cement upon the flesh surface thereof, means for supporting a sole in inverted position constructed and arranged to protect the uncemented mid portion thereof, means for clamping the sole in firm contact with the supporting means, means for substantially simultaneously flowing solvent upwardly upon the entire cemented margin of the sole, and means for catching the excess solvent as it falls away from the sole.

14. In a solvent app-lying machine, a support contacting with the uncemented mid portion of a sole, said support having a nozzle opening closely adjacent to the cemented portion of a sole on the support, and means for forcing solvent through said nozzle for application to said cemented portion.

15. In a solvent applying machine, a soleshaped support including a casing having a series of openings around the margin of the support, and means for forcing solvent from said casing through said openings for application to a sole positioned thereon.

16. In a solvent applying machine, a substantially sole-shaped supporting casing the longitudinal vertical profile of which approximates that of a molded sole, said casing having a plurality of apertures around the fo-repart and along the shank portion of the sole, and means for forcing solvent through said openings for application to the cement on the sole.

17. In a solvent applying machine, a support for a sole, means for directing a stream of solvent upon a margin of the sole comprising a nozzle opening inside the edge of the sole, and a ledge adjacent to said nozzle opening underlying the margin of the sole and constructed and arranged to direct the flow of solvent to maintain it in contact with the sole all the way to the edge thereof.

18. In a solvent applying machine, a support for a sole having a marginal band of dried cement, said support being constructed and arranged to hold the sole in inverted position with the cemented surface down and tocontact with and protect from solvent the uncemented mid portion of the sole, nozzles just outside the work contacting portion of the sole support directing a flow of solvent upon the band of cement, and a ledge co-operating with the nozzles to direct the flow of solvent outwardly across the full width of the band of cement, said ledge sloping downwardly to facilitate the outflow of solvent.

19. In a solvent applying machine, means for supporting a sole in inverted position, and means for directing a flow of solvent upwardly against and outwardly across the margin of the under side of the sole so that any surplus solvent will drain away from the sole.

20. In a solvent applying machine for an outsole having a marginal coating of dried cement, means for supporting a sole in position to drain without soiling uncemented portions of the sole, means for directing a stream of solvent upwardly against a cemented margin of the sole, and means for directing the solvent in a direction pointing away from the uncemented area within the margin, thereby to activate the cement without coating with solvent the unc-emented area of the sole.

21. In a solvent applying machine for an outsole having a marginal band of dried cement upon the attaching surface, means for supporting a sole in a position to drain without soiling the uncemented tread surface of the sole, means for directing a stream of solvent upwardly against the cement-coated surface of the sole, and means for directing the solvent outwardly toward the edge of the sole to revive the cement without soiling portions of the sole which are exposed in the finished shoe.

22. In a solvent applying machine for an outsole having a marginal band of dried cement on the flesh surface thereof, means for holding a sole with the flesh surface downward, means positioned beneath the supported sole for directing a stream of solvent outwardly toward the margin into contact with the stripe of cement, and means for catching excess solvent as it falls away from the sole.

23. In a solvent applying machine, a movable work carrier, articulated work positioning and supporting gage arms pivotally mounted on said carrier, said carrier being movable from a loading position to an operating position, and means at the operating position for applying solvent.

24. In a solvent applying machine, solvent applying mechanism including a sole clamp, and

means for presenting a sole to said mechanism comprising a movable work carrier having sole positioning gages and a heel gripping device engaging parts of the sole outside the sole clamp.

25. In a solvent applying machine, a solvent applying mechanism, a sole supporting carrier slidable from a loading position spaced laterally from the applying mechanism to an operating position adjacent to the applying mechanism to present a sole to said applying mechanism, means for returning said carrier to the loading position, and means for cushioning the return movement.

26. In a solvent applying machine, a solvent applying mechanism, a work presenting carrier movable from a loading position where work may be placed on the carrier to an applying position, means for automatically returning said carrier to loading position, a latch for holding said carrier in applying position against the force of said automatic return means, and operator controlled means for releasing said latch.

27. In a solvent applying machine, solvent applying mechanism including a movable part,

operator-controlled means for actuating the movable part of said applying mechanism, a work presenting carrier movable from a loading position to an operating position, means for returning said carrier to loading position, a latch for holding said carrier in operating position, and means associated with said operator-controlled means for releasing said latch.

28. In a solvent applying machine, an applying mechanism, a spring for operating said mechanism, a work presenting carrier movable from a loading position to an operating position, means for returning said carrier to loading position, a latch for preventing said return movement, and operator controlled means for energizing said spring having a member for releasing said latch as, at the termination of the operation, the spring returns to its original state.

29. In a solvent applying machine, a sole support, a movable clamp cooperating with said support to clamp a sole thereon, solvent applying mechanism including a pump, and operator controlled mechanism for applying clamping pressure, operating the pump, and releasing the clamp.

30. In a solvent applying machine, a sole support, a movable clamp for a sole positioned on the support, solvent applying mechanism, treadle operated means for applying pressure to said clamp and storing power, operator-controlled means for locking said clamp in said position, and means operable by said stored power when released for operating said applying mechanism to apply solvent to the clamped sole and for lifting said clamp.

31. In a solvent applying machine, a sole support, a removable clamp adapted to hold a sole on said support for the application of solvent, a spring-operated pump, and operator-controlled means for winding up said spring and applying said clamp and for releasing said spring and lifting the clamp.

32. In a solvent applying machine, a chamber, applying mechanism within said chamber, said chamber having a work presenting opening, and a movable work supporting and presenting member with a closure adapted to cover said opening when said member is moved to present the work in applying position.

33. In a solvent applying machine, a chamber, applying mechanism within the chamber, said chamber having an opening to permit the presentation of work to the applying mechanism, a displaceable door for said opening, a work presentcarrier reciprocable to carry a piece of work from a loading position outside the chamber through the opening to an operating position inside the casing, means for automatically displacing said door as the carrier positions the work in the chamber, a latch for holding the door in displaced position, and means operable upon retrograde movement of said carrier to release said latch.

34. In a solvent applying machine, a chamber, applying mechanism within the chamber, a work carrier movable to carry a pieced work from a loading position outside the chamber to an operating position inside the chamber, a displaceable door for said chamber, means for automatically displacing the door as the work is moved to operating position, and a closure upon said work carrier adapted to be substituted for the door when the work has been presented to the applying mechanism.

35. In a solvent applying machine, a chamber, applying mechanism within the chamber, said chamber having an opening for admitting the work, a displaceable door for said opening, a work presenting carrier movable from a loading position to carry a piece of work into the chamher to operating position, and means for automatically closing said door as said work carrier is returned to loading position.

36. In a solvent applying machine, a chamber having a work receiving opening, an applying mechanism within said chamber, a displaceable closure for said opening, means urging said closure to open position, a latch for holding said closure in closed position, a work carrier movable from a loading position to carry a piece of work through said opening into operating position, and means on said carrier for releasing said latch as the work is withdrawn from the chamber.

37. In a solvent applying machine, a chamber having a work admitting opening, a displaceable door for said opening, applying mechanism with in the chamber, a work carrier movable from loading position to carry a piece of work into operating position in the chamber and having a closure adapted to be substituted for said door, and means for automatically closing said door as the carrier reaches loading position upon its return movement.

38. In a solvent applying machine, a chamber having a work receiving opening, solvent applying mechanism within said chamber, a displaceable door for said opening, a work carrier movable from loading position to carry a piece of work into the chamber and present it in operating position, said carrier having a closure adapted to cover said opening when the work is in operating position, means for opening said door as said carrier is moved toward the chamber, and means for closing said door as said carrier is withdrawn from the chamber.

39. In a solvent applying machine, an applying mechanism pivotally mounted in said machine, a movable work carrier for presenting a piece of work to said applying mechanism, said applying mechanism and said work carrier having a cooperating tapered notch and projection to insure correct relation of a piece of work mounted on the carrier to the applying mechanism.

40. In a solvent applying machine, a frame provided with a sump, a casing embodying a chamber in which there is an applying mechanism, tiltably secured to said sump, said chamber having a drainage opening communicating with the sump, and a pump connected with the applying mechanism and removably secured to the under side of the casing to dip in the sump, whereby the tilting of the casing gives access to the pump.

LESTER S. MACDONALD.

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