US2913742A

US2913742A - Machines for operating on sole members

Info

Publication number: US2913742A
Application number: US633976A
Authority: US
Inventors: Alfred S Clark
Original assignee: United Shoe Machinery Corp
Current assignee: United Shoe Machinery Corp
Priority date: 1957-01-14
Filing date: 1957-01-14
Publication date: 1959-11-24
Anticipated expiration: 1976-11-24

Description

Nov.'24, 1959 v A. s. CLARK 2,913,742

MACHINES FOR OPERATING ON SOLE MEMBERS FilBd Jan. 14, 1957 5 Sheets-Sheet 1 Inventor fllfTEd 5. C/aP/f is v Nov. 24, 1959 A. s. CLARK 2,913,742.

MACHINES FOR OPERATING ON SOLE MEMBERS Filed Jan. 14, 1957 w w? w n m @m mm m m m e mm l s 3% w m 9% lm A Nov. 24, 1959 As. CLARK MACHINES FOR OPERATING ON some: MEMBERS 5 Sheets-Sheet 3 Filed Jan. 14, 1957 I Inventor Alfreq' 5. Clark Nov. 24, 1959 A. s. CLARK 2,913,742

MACHINES FOR OPERATING 0N SOLE MEMBERS Fi led Jan. 14. 1957 5 sheets-sheet 4 Nov. 24, 1959 A. s. CLARK MACHINES FOR OPERATING ON sou: MEMBERS Filed Jan. 14. 1857 5 Sheets-Sheet 5 Inventor Alfred 5. Clark w iw United States Patent MACHINES FOR OPERATING ON SOLE MEMBERS Alfred S. Clark, Beverly, Mass., assignor to United Shoe Machinery Corporation, Flemington, N .J., and Boston, Mass., a corporation 'of New Jersey Application January 14, 1957, SerialNo. 633,976

16 Claims. (Cl. 12-18.7)

This invention relates to machines for operating on sole members and is herein illustrated as embodied in a sole channeling and lip setting machine of the type dis closed in United States Letters Patent No. 2,750,607, granted June 19, 1956, on an application filed in the name of the present applicant. It will be understood, however, that in its broader aspects the invention is of general utility and hence not limited to use in a sole channeling and lip setting machine or to embodiment in a machine of the exact mechanical construction disclosed in the mentioned patent.

As will be understood by reference to thepatent mentioned above, the machine which is therein illustrated, generally in common with other machines of this type, has a rotary work table for supporting a sole member, a pair of knives for cutting and partially raising a pair of channel lips, a pair of jaws constituting means for pressing the partially raised channel lips together to form an upstanding rib, a presser gage for engaging the top face of the sole member to gage the depth of cut of the channeling knives, and a power operated foot for feeding the sole member on the table relatively to the channeling knives and lip setting jaws. In accordance with the usual practice, prior to the presentation of a sole member to the machine, cement is applied to those portions of the top face of the sole member which are to form the channel lips so that these lips will adhere to each other when pressed together by the aforementioned jaws to form an upstanding rib on the sole member.

It is a principal object of this invention to obviate the necessity for the two separate operations involved in the prior procedure just described by providing, in a machine of the mentioned type, means for extruding a band of cement on the top surface of the sole as it is fed along by the feed foot. With this object in view, in the herein illustrated machine the presser gage has two separate work engaging surfaces arranged, respectively, to contact the top faces of those portions of the sole member which are to form the channel lips, and means are provided for extruding cement through one of said work engaging surfaces onto the top face of one of the lip forming portions of the sole member. In order to assure immediate and adequate adhesion of the two channel lips to form the upstanding rib, heated thermoactive adhesive is extruded through the mentioned work engaging surface of the presser gage, and means are provided for lowering the temperature of the other work engaging surface of the presser gage thereby to cool the top face of that portion of the sole member which is to form the other channel lip. More particularly, and in the herein illustrated machine, the means for lowering the temperature of the mentioned work engaging surface of the.

presser gage comprises an arrangement for continuously circulating a cooling liquid through a portion of the presser gage immediately adjacent to the work engaging surface which is to be cooled.

, It is another object of this invention to provide novel and improved means for controlling the flow of cement 2,913,742 Patented Nov. 24, 1959 through an extruding nozzle in a machine of the type mentioned above or, as somewhat more broadly considered, in any machine for operating on a work piece having means for feeding a work piece and a nozzle, or equivalent member, through which cement is extruded onto the work piece as it is fed along by the action of the feeding means.

With this object in view, the herein illustrated machine, which has means for controlling the flow of cement through a nozzle, or equivalent member, i.e., the presser gage, is provided with mechanism including a sensing device which is responsive to the presence of a work piece in position to be engaged by the feeding means for operating the means for controlling the flow of cement. More particularly, the machine, which has a work table, means for operating on a sole member on the table, means for engaging and feeding a sole member relatively to the operating means, power operated means for driving the feeding means, a nozzle, and means for extruding cement through the nozzle, is provided wtih mechanism for controlling the action of the cement extruding means by selectively connecting it to the power operated means, together with means including a sensing device which is responsive to the presence of a sole member on the work table in position to be engaged by the feeding means for operating the controlling mechanism. Preferably, and in the herein illustrated machine which is adapted for channeling and lip setting sole members, a valve is also provided for controlling the flow of cement through the nozzle, and electrically actuated means are provided for simultaneously opening the valve and operating the connecting means to cause the extruding means to be driven by the power operated means, while the sensing device comprises a feeler for engaging a sole member on the work table in position to be engaged by the feeding means. As will be apparent with the arrangement just described, the flow of cement will be initiated immediately when the sole member is fed by the feeding means and will be terminated at the conclusion of the lip setting and channeling operation when the sole member is removed from the work table.

The above and other objects and features of the invention will be apparent in the following detailed description of the preferred embodiment of the invention illustrated in the accompanying drawings and will be pointed out in the claims.

In the drawings:

Fig. 1 is a view in front elevation of a machine embodying the features of this invention;

Fig. 2 is a detail view of a portion of the machine shown in vertical section taken substantially on line IIII of Fig. 3 and looking in the direction of the arrows; I

Fig. 3 is a view in said elevation of the machine shown in Fig. 1 as viewed from the left-hand side of that figure;

Fig. 4 is a view in side elevation and at a somewhat enlarged scale of a portion of the machine of Fig. 1 shown as viewed from the right-hand side of that figure;

Fig. 5 is a detail view of a part of the machine;

Fig. 6 is a view in rear elevation and at an enlarged scale of a portion of the machine with other parts omitted to simplify the disclosure;

1 and 4 thereof, the machine therein illustrated is, except for the cement applying mechanism which is to be described below, essentially the same as the channeling and lip setting machine disclosed in the aforementioned patent. Thus this machine is provided with a rotatable work table 20 upon which a work piece in the form of a sole member S is supported and intermittently advanced relatively to a pair of outer and

inner channeling knives

22 and 24. These knives serve to cut and partially to raise a pair of channel lips from the surface of the sole member, which lips are further raised and pressed together to form a rib by means of a pair of

gripper jaws

26, 28, Fig. 3. The heightwise position of the sole member relatively to the various work engaging members is determined by means of a presser gage 36 which is adapted to contact the upper surface of the sole member. A toothed feed foot 38, Fig. l, is provided for feeding the sole member on the table as it is guided by means of an edge gage 40, Fig. 4. As in the machine of the mentioned patent, the feed foot is driven by power operated mechanism including, among other elements which are described in detail in the mentioned patent, a pair of toggle links 68 and 74 which are connected by a pin 72 and operatively connected to an eccentric 62 on a main drive shaft 54 by means of a connecting rod 64. The various operating elements of the machine are associated with and mounted on a suitable frame construction which is indicated herein by the reference character 42 and which in turn is supported at an appropriate height on a column not shown.

As is shown more clearly in Fig. 9 of the drawings, the presser gage 36 is so formed as to present two separated

work engaging surfaces

100, 102, and as already suggested for the purposes of this invention means are provided for extruding cement through one of these working surfaces and for lowering the temperature of the other surface. Thus, the presser gage has a pair of

passageways

104, 106 which extend upwardly from the surface 102 into a small bore 108. This small bore opens into a larger bore 118 having a threaded outer end which receives a gland nut 112. Slidably mounted in this gland nut is a valve member 114 which is provided with a conical end 116 adapted to seat on the shoulder formed between the

bores

108 and 118. Leading from the lower end of each of the

passageways

104, 106 are grooves 118, see Fig. 10. Opening into the bore 118 is a third bore 129 to which there is connected, by means of a fitting 122, a supply conduit 124. This conduit is enclosed within a two-piece housing 128 including a front part 130 and a back part 132, Fig. 8, which housing is in turn secured to the lower portion of the casing 134 of a rod cement melting and feeding unit indicated generally by the reference character 136. This unit is substantially similar to the melting and feeding unit disclosed and claimed in United States Letters Patent No. 2,765,768, granted October 9, 1956, on an application filed in the name of Hans C. Paulsen. As shown in Figs. 6 and 7, the conduit 124 is connected at its upper end to an outlet passage 138 of the melting and feeding unit by means of an elbow 140.

The melting and feeding unit is supported on the frame 4-2 by means of an overhanging arm 142, Fig. 3, and like the unit disclosed in the mentioned Paulsen patent, has a rotary melting disk 144 carried on a shaft 146 and received within a recess formed in the casing and shaped to provide a passageway 148 extending along the periphery of the disk froman inlet passage 156' to an outlet chamber 152. Mounted within this outlet chamber are a pair of intermeshing gears 154-, 156, forming a gear pump, one of these gears being carried by a shaft 153, 6. Extending outwardly from the inlet passage 150 is an inlet tube 169 which has a portion received within a heating block 162. Referring to Fig. l of the drawings, there is mounted on the frame 42, by

means including brackets

164, 166, a generally rectangular plate member 168, see also Fig. 3. Extending outwardly from the upper right-hand portion of this plate member, as viewed in Fig. 3, is a bracket 170 to which there is secured a frame 172. Associated with this frame are a pair of

feed wheels

174, 176 which are interconnected by means of a pair of

gears

178, 180, the latter of which is connected to a sprocket 182. As shown in Fig. 6, the feed wheel 176 is yieldably urged toward the feed wheel 174, to the extent permitted, by a stop screw 184, by means of a tension spring 186. Also associated with the frame 172 is a guide tube 138 which is cut away, as indicated in Fig. 6, to expose the opposite sides of a rod of cement R to the action of the two feed wheels. As will be understood, the housing 128, through which the supply conduit passes, the casing 134 of the melting and feeding unit 136, and the heating block 162 are heated by suitable electrical heating units H, H, H, connected to a source of electrical energy, not shown, and controlled by thermostats T, T, T.

Referring to Fig. 1, the shaft 158 which carries the gear 156, Fig. 6, extends outwardly beyond the casing 134 of the melting unit 136 and has mounted thereon a pair of

sprockets

198, 192 and a gear 194 which meshes with a somewhat larger gear 196 carried by an outwardly extending portion of the aforementioned shaft 146 on which the disk 144 is mounted. Rotatably mounted on a stud which is carried by a bracket-like portion 198 formed on the arm 142, see Fig. 3, is a double sprocket 200. The sprocket 182 is operatively connected to the sprocket 192 by means of the aforementioned double sprocket and two

drive chains

282 and 284.

For driving the shaft 158, thereby to operate the rod cement melting and feeding unit and to cause heated thermoactive cement to be delivered from the outlet passage 138 into the conduit 124, the following arrangement is provided. Rotatably mounted in the aforementioned bracket 170 and in another similar bracket 210, also extending outwardly from the plate member 168, is a shaft 212. Connected to one end of this shaft by means of a friction drive device which includes a pair of

pressure plates

214, 216, keyed to the shaft, 2. spring 218 and an adjusting nut 220, is a sprocket 222 which is adapted to drive the sprocket 190 by means of a chain 224. Adjacent to the other end of the shaft 212 are two

arms

230, 232 carrying, respectively, one-way roller

clutch devices

234, 236 of conventional construction, the arrangement being such that when these two arms are oscillated equally and in opposite directions, the shaft 212 will be rotated, stepwise, in a counterclockwise direction as viewed in Fig. l of the drawings, see arrow thereon. When the shaft 212 is thus rotated, the rod of cement R will be fed into the melting and feeding unit and heated thermoactive cement will be delivered to the conduit 124 and thence in the arm, Fig. 1.

into the bore in the presser gage 36 in a manner which will be readily understood by reference to the abovementioned Paulsen patent.

The arms 230, 231 are connected, respectively, to the

oppositely extending arms

240, 242 of a bell-crank lever 244 having a third arm 248, by means of

links

250, 252, see Fig. 1. The bell-crank lever 244 has a hub portion 246 which is mounted for oscillation on a shaft 254, Fig. 3, carried by two outwardly projecting bosses 256, 25-3 formed on the plate member 168. Near its lower edge, the plate 168 has two more outwardly extending

bosses

268, 262 which carry a shaft 264. Mounted on this shaft is a hub member 266 having an upwardly extend ing arm 268 to which one end of a link 270 is adjustably connected by means of a binding screw 272 and slot 274 The other end of the link 271) is connected to the arm 248.

Also mounted on the shaft 264 is a second hub memher 276 having an upwardly extending arm 273 and two

radial projections

280, 282. As shown in Fig. 2 of the drawings, the projection 288 is somewhat longer than projection 282 and these two projections have oppositely facing

surfaces

284, 286 forming a groove having an upper open end. Pivotally mounted on the hub member 266 by means of a rockshaft 2881s an L-shaped member 290 having an upstanding arm 292 and a longitudinally extending portion 294. Secured to the shaft 288 is an arm 296, and carried by the hub member 266 is a springpressed plunger 298 which tends to swing the member 290 in a counterclockwise direction, Fig. 3, thereby causing the longitudinal portion 294 of the member 290 to assume the solid-line position in which it is shown in Fig. 2, and thus connecting the

hub members

266 and 276 together. The arm 278 is connected to the pin 72, which joins the two toggle members 68 and 74 of the power operated mechanism which drives the feed foot 38, by means of a link 300, Fig. 1.

Slidably mounted in guideways formed in two

blocks

310, 310 secured to the plate-like member 168, is a flat rod 312 to which there is secured an arm carrying a pin 314, Fig. 3. A coil spring 316, stretched between a pin 318 on the rod 312 and a pin 320 on the member 168, yieldingly urges the rod to the right to the extent determined by the engagement of a stop pin 322 with one of the blocks 310. When the rod is in this position, see Fig. 3, the pin 314 engages the arm 292 of the L-s'haped member 290 and swings it in a counterclockwise direction against the resistance of thespring-pressed plunger 298, elevating the longitudinallyextending portion 294 to the solid-line position in which it is shown in Fig. 3 (see dotted-line position of Fig. 2) thereby disconnecting the hub member 276 from the hub member 266. While these two hub members are thus disconnected, a coil spring 324 yieldingly urges the bell-crank lever 244 in a counterclockwise direction and to the extent permitted by the engagement of an abutment 326 with a stop screw 328, Fig. 1, thereby holding arm 268 and hub 266 in the positions shown. Connected to the left-hand end of the rod 312, as viewed in Fig. 3, isthe armature 330 of a solenoid 332 having a coil 334. As will .be apparent,

when the operating elements of the channeling and lipsetting machine are being driven, movement of the rod 312 to the left, as a result of the energization of the coil 334, will permit the longitudinally extending portion 294 of the member 290 to enter the groove between the

projections

280, 282, Fig. 2, and thereby connect the rod cement melting and feeding unit to the power operated means for driving the feed foot 38 so that heated thermoactive cement will be delivered into the supply conduit 124 and thence into the bore 110 in the presser gage 36.

Referring to Fig. 9 of the drawings, the valve member 114 is connected, by means of an enlarged head 340 thereon and a link 342, to the lower end of an arm 344 having a hub portion 346 which is secured to the righthand end of the shaft 348, see, Fig. 1. This shaft is rotatably mounted in a bearing bracket 350 supported on the frame 42 and has secured to its opposite end a relatively short arm 352 carrying a pin 354, Fig. 3. Rotat- .ably mounted on this same end of the shaft 348, between the arm 352 and'the, adjacent end of the bearing bracket 350, is a considerably longer arm 356 having a laterally extending flange portion 358. Extending downwardly from the hub portion of the arm 352 is a pin 360 and a coil spring 362, stretched between this pin and another pin 364 in the Plate-like member 168, yieldinglyrotates the shaft 348 in a clockwise direction, Fig. 3, thereby holding the valve member 114 in the closed position in which it is shown in Fig. 9. At its upper end, the arm 356 carries a pin 366 which projects laterally through a groove 368 formed in an arm 370 which is pivotally connected to the right-hand end of the rod 312, Fig. 3, by means of a pin 372. A coil spring 374, stretched between the pin 366 and the other pin 372, tends to hold the pin 366 against the bottom of the groove,3 68 when the parts are in the positions shown in 3. As will be apparent, when the rod 312 is moved to theleft, Fig. 3, the flange portion 358 will engage the pin 354 so that the valve member 114 will be moved to open position, i.e., to the left in Fig. 9, thereby permitting heated thermoactive cement to be extruded through the

passageways

104, 106 and 118 onto a sole member S on the work table 20.

Referring to Fig. 4, a microswitch 380 having an operating plunger 382 is fastened to a plate member 384 which in turn is secured to an angular bracket 386, mounted on a projecting portion of the machine frame 42. This switch is connected, by means of

leads

388, 390, into a circuit leading from a suitable source of electrical energy, not shown, to leads 392, 394 associated with the field 334 of the solenoid 332, the arrangement being such that when the switch 380 is closed as a result of the initial movement of the plungerv 382, the coil 334 of the solenoid 332 will be energized and, if the operating elements of the channeling and lip setting machine are being driven from the main shaft 54, heated thermoactive cement will be extruded through the surface 102 of the presser gage 36. Secured to the presser gage is a plate member 396 carrying a screw stud 398 on which there is pivotally mounted a lever 400 having an upstanding arm 402 and a laterally extending arm 404, see also Fig. 5. The arm 402 is formed with a laterally extending abutment plate 406 for engaging the plunger 382 of the switch 380, while there is secured to the arm 404 an S-shaped feeler 408. An adjustable stop screw 410 is adapted to limit clockwise rotation of the lever 400 under the influence of gravity acting on the heavier arm 404 and feeler 408, to a point where the switch 380 is just opened and so that a slight elevation of the feeler 408 will close this switch. As shown in Fig. 4, the

arms

402 and 404 are angularly adjustable relatively to each other by means including a clamp screw and slot 414, for the purpose of changing the normal elevation of the feeler 408.

, It will be understood by reference to my earlier patent mentioned above, that the work table 20 of the channeling and lip setting machine is adapted to be depressed, against the resistance of spring means, by means of a treadle, not shown, for the purpose of facilitating the placing of a sole member thereon. After a sole member has thus been placed on the work table and upon release of the mentioned treadle, the table will be elevated by the spring means to bring the sole member into position to be engaged by the feed foot 38 and at the same time the feeler will be elevated thereby simultaneously setting ,the cement melting and feeding mechanism into opera- .tion and moving the valve 114 to openposition.

If desired, another manually operable switch may be provided in the electrical circuit which is associated with the solenoid 332 so that the flow of cement may be controlled by the operator independently of the switch 380 and the feeler 408.

As is shown in Fig. 9, two

flexible conduits

430, 432 are connected, by means of

nipples

434, 436, attheir lower ends to a chamber 438 formed in that portion of ,the presser gage 36 which is adjacent to the work engaging surface 100. Supported on a bracket 440 mounted on a portion of the machine frame 42 is a tank 442 provided with a centrally located cylindrical chamber.

444 open at its upper end. Extending into this chamber is a propeller 446 which is secured to the lower end of the shaft 448 of a slow-speed motor 450. The upper end of the conduit 430 opens into the tank 442, while the upper end of the conduit 432 opens into the cylindrical chamber 444. Therefore, when the tank 442,

conduits

430 and 432, and the chamber 438 are filled with a,coo1- ing liquid, such as Water, and to the level indicated in Fig. 3, this liquid will be continuously circulated through the chamber 438, partly by convection and also as a result of the action of the propeller 446. In this manner, the temperature of that portion of the presser gage 36 adjacent to the work engaging surface 100 be lowered to cool this surface whi'ch, in turn, coolsthat portion of the surface. of the sole rrien'iber.- which itcontacts.

As will be apparent from an inspection of Figs. 9. and 10, when the machine is operating, two bands of heated thermoactive cement will be extruded through the work engaging surface 102 of the presser gage 36 onto the top face of that portion of the sole member S which is to form the inner channel lip, while the top face of that portion of the sole member which is to form the outer channel lip is cooled by contact with the work engaging surface 100 of the presser gage, the temperature of which is lowered by the cooling liquid circulating through chamber 438 therein. Accordingly, as these two lips are thereafter pressed together by the

gripper jaws

26 and 28, the heated cement applied to one of the lips is cooled by contact with the other lip so that immediate and firm adhesion of these two lips to form the rib on the sole member is assured. In addition, inasmuch as the extrusion of the heated thermoactive cement through the presser gage is controlled by mechanism responsive to the presence of a sole member on the work table 20 in position to be engaged by the feed foot 38, the operator is not required to exercise any care in this connection and hence can direct his attention wholly to the presentation of the sole members to and their removal from the machine.

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

1. In a machine for channeling and lip setting soles having a work table for supporting a sole, a pair of channeling knives for cutting and partially raising a pair of channel lips, means for pressing said partially raised channel lips together to form an upstanding rib, a presser gage located adjacent to and immediately ahead of said channeling knives for engaging the top face of a sole on the table for gaging the depth of cut of said channeling knives, and a power operated feed foot for feeding the sole, said presser gage having two separated work engaging faces, means for extruding heated thermoactive cement through one of said work engaging faces onto the top face of that portion of the sole engaged thereby, andmeans for lowering the temperature of the other work engaging face to cool the upper surface of that portion of the sole engaged thereby as the sole is fed along by the presser feed foot.

2. In a machine for channeling and lip setting soles having a work table for supporting a sole, a pair of channeling knives for cutting and partially raising a pair of channel lips, means for pressing said partially raised channel lips together to form an upstanding rib, a presse'r gage located adacent to and immediately ahead ofsaid channeling knives for engaging the top face of a sole on the table for gaging the depth of cut of said channeling knives, and a power operated feed foot for feeding the sole, said presser gage having two separated work engaging faces, means for extruding heated thermoactive cement through one of said work engaging faces onto the top face of that portion of the sole which is to form one of said channel lips, and means for lowering the temperature of the other ,work engaging face. to cool the upper surface of that portion of the sole which is to form the other channel lip as the sole is fed along by said feed foot.

3. In a machinefor operating on a work piece having means for operating on a'work piece, means for engaging and feeding a work piece relatively to said operating means, a nozzle for applying cement to a portion of the work piece as it is fed along by the feeding means, and

means for extruding cement through said nozzle, mechanism for controlling the action of the cement extruding means, and means including a sensing device responsive to the presence of a work piece in position to beengaged by said feeding means for operating said controlling mechanism. i

4. In a machine for operating on a work piece having means for'engag ing and feeding a work piece, power operated. means for driving said feeding means, a nozzle for applying cement to a portion of the work piece as it is fed along by the feeding means, means for extruding cement through said nozzle, and means for selectively connecting said'extniding means to said power operated means, mechanism including a sensing device responsive to the presence of a work piece in position to'be engaged by said feeding means for operating said connecting means to cause the extruding means to be driven by said power operated means.

5. In a machine for operating on a Work piece having means for operating on a workpiece, means for engaging and feeding a work piece relatively to said operating means, power operated means for driving said feeding means, a nozzle for applying cement to a portion of the work piece as it is fed along by the feeding means, means for extruding cement through said nozzle. and means for selectively connecting said extruding means to said power operated means, mechanism including a sensing device responsive to' the presence of a work piece in position to be engaged by said feeding means, and electrically actuated means for operating said connecting means to cause the extruding means to be'driven by said power operated means.

6. In a machine for operating on a work piece having means for' engaging and feeding a work piece, power operated meansfordriving said feeding means, a nozzle for applying cement to a portion of the work piece as it is fed along by the feeding means, means for extruding cement through said nozzle, a valve for controlling the flow .of cement through said nozzle, and means for selectively connecting said extruding means to said power operated means, mechanism including a sensing device responsive to the presence of a work piece in position to be engaged by said feeding means .for simultaneously opening said valve and operating said connecting means to cause the extruding means to be driven by said power Operated means.

7. In a machine for operating on a work piece having means for operating on a work piece, means for engaging and feeding a work piece relatively to said operating means, power operated means for driving said feeding means, a nozzle for applying cement to a portion of the work piece as .it is fed along by the'feeding means, means for extruding cement through said nozzle, a valve for controlling the flow of cement through said nozzle, and means "for selectively connecting said extruding means to said power operated means, mechanism including a sensing device responsive to the presence of a work piece in position to be engaged by said feeding means and electrically actuated means for simultaneously opening said valve and operating said connecting means to cause the extruding means to be driven by said power operated means. i

8. In a machine for operating on a sole member having a work table for supporting a sole member, means for engagingand feeding a sole member, power operated means for driving said feeding means, a nozzle for applying cementto a portion of the sole member as it is fed along by the feeding'means, means for extruding cement through said nozzle, and means for selectively connecting said extruding means to 'said power operated means, mechanism including a sensing device responsive to the presence of a sole member on said work supporting table in position to .be engaged by the feeding means for operating said connecting means to cause the extruding means to be driven by said power operated means.

9. In a machine for operating on a sole member having a work table for supporting a sole member, means for operating on a sole member on said table, means for engaging and'feeding a sole member, power operated means for driving said feeding means, a nozzle for applying cement to a portion of thesole member as it is fed along by the feeding means, means for extruding cement through said nozzle, and means for selectively connecting said extruding means to said power operated means, mechanism including a sensing device responsive to the presence of a sole member on said work supporting table in position to be engaged by the feeding means, and electrically actuated means for operating said connecting means to cause the extruding means to be driven by said power operated means.

10. In a machine for operating on a sole member having a work table for supporting a sole member, means for engaging and feeding a sole member, power operated means for driving said feeding means, a nozzle for applying cement to a portion of the sole member as it is fed along by the feeding means, means for extruding cement through said nozzle, a valve for controlling the flow of cement through said nozzle, and means for selectively connecting said extruding means to said power operated means, mechanism including a sensing device responsive to the presence of a sole member on said work supporting table in position to be engaged by the feeding means for simultaneously opening said valve and operating said connecting means to cause the extruding means to be driven by said power operated means.

11. In a machine for operating on a sole member having a work table for supporting a sole member, means for operating on a sole member on said table, means for engaging and feeding a sole member, power operated means for driving said feeding means, a nozzle for applying cement to a portion of the sole member as it is fed along by the feeding means, means for extruding cement through said nozzle, a valve for controlling the flow of cement through said nozzle, and means for selectively connecting said extruding means to said power operated means, mechanism including a sensing device responsive to the presence of a sole member on said work supporting table in position to be engaged by the feeding means, and electrically actuated means for simultaneously opening said valve and operating said connecting means to cause the extruding means to be driven by said power operated means.

12. In a machine for channeling and lip setting soles having a work table for supporting a sole, a pair of channeling knives for cutting and partially raising the pair of channel lips, means for pressing said partially raised channel lips together to form an upstanding rib, a presser gage located adjacent to and immediately ahead of said channeling knives for engaging the top face of a sole on the table for gaging the depth of cut of said channeling knife, a feed foot for feeding the sole, and power operated means for actuating said feed foot, means for extruding a band of adhesive through said presser gage, means for selectively connecting said extruding means to said power operated means, and mechanism including a sensing device responsive to the presence of a sole on said work supporting table in position to be engaged by the feeding means for operating said connecting means to cause the extruding means to be driven by said power operated means.

13. In a machine for channeling and lip setting soles having a work table for supporting a sole, a pair of channeling knives for cutting and partially raising the pair of channel lips, means for pressing said partially raised channel lips together to form an upstanding rib, a presser gage located adjacent to and immediately ahead of said channeling knives for engaging the top face of a sole on the table for gaging the depth of cut of said channeling a valve for controlling the flow of cement through said presser gage, means for selectively connecting said extruding means to said power operated means, and mechanism including a sensing device responsive to the presence of a sole on said work supporting table in position to be engaged by the feeding means, and electrically actuated means for simultaneously opening said valve and operating said connecting means to cause the extruding means to be driven by said power operated means.

14. In a machine for channeling and lip setting soles having a work table for supporting a sole, a pair of channeling knives for cutting and partially raising the pair of channel lips, means for pressing said partially raised channel lips together to form an upstanding rib, a presser gage located adjacent to and immediately ahead of said channeling knives for engaging the top face of a sole on the table for gaging the depth of cut of said channeling knife, a feed foot for feeding the sole, and power operated means for actuating said feed foot, means for extruding a band of adhesive through said presser gage, means for selectively connecting said extruding means to said power operated means, and mechanism including a feeler for engaging a sole on the work supporting table in position to be engaged by the feeding means for operating said connecting means to cause the extruding means to be driven by said power operated means.

15. In a machine for channeling and lip setting soles having a work table for supporting a sole, a pair of channeling knives for cutting and partially raising the pair of channel lips, means for pressing said partially raised channel lips together to form an upstanding rib, a presser gage located adjacent to and immediately ahead of said channeling knives for engaging the top face of a sole on the table for gaging the depth of cut of said channeling knife, a feed foot for feeding the sole, and power operated means for actuating said feed foot, means for extruding a band of adhesive through said presser gage, a valve for controlling the flow of cement through said presser gage, means for selectively connecting said extruding means to said power operated means, and mechanism including a feeler for engaging a sole on the work supporting table in position to be engaged by the feeding means, and electrically actuated means for simultaneously opening said valve and operating said connecting means to cause the extruding means to be driven by said power operated means. a

16. In a machine for operating on a work piece having means for operating on a work piece, means for engaging and feeding a work piece relatively to said operating means, a nozzle for applying cement to a portion of the work piece as it is fed along by the feeding means, and means for extruding cement through said nozzle, mechanism for controlling the action of the cement extruding means, and means including a sensing device responsive to the presence of a work piece in position to be engaged by said feeding means and electrical means adapted to be actuated by said sensing device for operating said controlling mechanism.

References Cited in the file of this patent UNITED STATES PATENTS 843,975 Thoma Feb. 12, 1907 1,004,705 Stanbon Oct. 3, 1911 1,278,099 Brackett Sept. 10, 1918 2,510,208 Bertrand June 6, 1950