US2241523A - Shoe machine - Google Patents

Description

May 13,1941. F. RICKS ETAL 2,241,523

SHOE MACHINE Filed Jan. 31, 1940 4 Sheets-Sheet 1 F. RlcK's ETAL 2,241,523

SHOE MACHINE Filed Jan. 31, 1940 4 Sheets-Sheet 5 May 13, 1941.

4 Sheets-Sheet 4 F. RICKS ETAL SHOE MACHINE Filed Jan. 31, 1940 May 13, 1941.

Patented May 13, 1941 SHOE MACHINE Fred Ricks and Frank Coleman Choice, Leicester, England, assignors to United Shoe Machinery Corporation, Borough of Flemington, N. J., a corporation of New Jersey Application January 31, 1940, Serial No. 316,480 In Great Britain February 18, 1939 2'7 Claims.

The present invention relates to shoe machines and is herein disclosed as applied to a machine for channeling sole members. It is to be understood that various features of the invention are not limited to this specific type of machine but may be applied equally well to machines of other descriptions.

When channeling insoles, for example, it is customary to vary the position of the channeling operation in different parts of the insole so as to vary the Width of the feather- In the present machines the variation in the position of the channeling operation is effected by adjusting the position of the edge gage during the operation of the machine, and to that end the machines are usually provided with an edge gage shifting lever and with three adjustable stops which are arranged in the path of the shifting lever to determine the different adjustments of that lever. The edge gage adjusting mechanism just referred to has two drawbacks. First, the operator may fail to move the shifting lever snugly against the appropriate stop and thus cause an erroneous setting oi the edge sage, and second, there may be and frequently is a considerable variation in the speed with which diiferent operators move the shifting lever between the different stops so that undesired changes in the width of the feather are effected, some changes being too abrupt and others too gradual.

It is an object of this invention to provide an improved automatic edge gage shifting mechanism which will accurately adjust the edge gage and will shift the edge gage at a uniform rate during a predetermined feeding interval. As illustrated, the improved edge gage shifting mechanism includes a cam which is shaped to effect desired adjustments of the edge gage and a transmission unit for operating the cam. The cam is connected with the edge gage by a linkage system that ensures the accurate adjustment of the edge gage and the transmission unit is connected with the driving mechanism of the machine so that there is a proper "correlation between the work feed and the speed of the adjustment of the edge gage.

Invention is also to be recognized in the use of an adjustable edge gage control cam, where by the edge gage shifting mechanism can readily and easily be adapted for operations upon sole members of different sizes and styles; in the controls for the transmission unit which automati cally cause that unit to stop after a predetermined period of operation regardless of whether or not its initiating control has been released; and in the construction of the transmission unit that enables it to be intermittently operated in either a forward or reverse direction so that both right and left soles can be operated upon without changing the setting of the edge gage control cam.

With the above and other objects in view, the invention will now be described with respect to the accompanying drawings and will be pointed out in the appended claims.

In the drawings,

Fig, 1 is a view in perspective showing part of a channeling machine having our invention embodied therein, only so much of the machine being indicated as is necessary to show the relation of the edge gage shifting mechanism to the machine;

Fig. 2 is a plan view of the cam and the edge gage shifting lever shown in Fig. 1;

Fig. 3 shows a development of the cam shown in Fig. 2;

Fig. 4 is a sectional View of the transmission which operates the edge gage shifting cam;

Fig. 5 is a sectional View taken on the line V VinFig. 4;

Fig. 6 is an elevation of a brake device on the drive shaft for the edge gage shifting cam;

Fig. '1 is a plan view of part of the clutch shifting means;

Fig. 8 is an elevation, partly in section, of a cam which forms part of the clutch disconnecting means, and

Fig. 9 is a plan view of part of the control mechanism for the clutch shifting lever shown in Fig. 4.

This invention is illustrated as embodied in channeling machine of the type disclosed in the United States Letters Patent No. 1,023,801, granted April 23, 1912, upon an application filed in the name of Frederic E. Bertrand. In machines of this type the edge face of a. sole membar is pressed against an edge gage as the sole member is fed through the machine and is oper ated upon by the channeling knives.

Referringt-o Fig. 1 of the drawings, 28 indicates a channeling machine having an edge gage l2 that is moved forwardly and rearwardly toward and away from the line of feed by a transmission unit I4. The transmission unit!!! is controlled by the operator through hand levers I 6 (Figs. 1 and 4) which are selectively depressed at appropriate times, during the channeling operation to cause forward and rearward adjustengage opposite sides of the cam and thus form a connection between the cam and the lever that causes the edge gage to be shifted positively back and forth when the cam is rotated.

It is customary when channeling insoles, for example, to change the position of the edge gage several times during the channeling operation so as to shift the location of the operation with respect to the insole edge andthereby vary the width of the feather formed by the edge knife. Three widths of feather are usually formed around the sole edge in this manner, one in the shank, another in the forepart, and a third around the toe. The different adjustments of the edge gage are effected during the operation of the machine by the cam Is, This cam is made adjustable so that it can be adapted to elfect variations in the adjustments of the edge age to meet different operating requirements. Referring to Figs. 2 to 4, it will be seen that the cam [8 comprises four segments 28 extending, end to end, around the periphery of a drum 30 which issecured to the forward end of a shaft 32. The adjacent ends of the segments 28 almost engage each other and the four segments form a practically continuous cam around the drum. Each segment 28 is pivoted midway between its end on a radial stud 34 secured to a T-shaped slide 36 which is mounted in a T-shaped guideway 38 (Fig. 1) formed in the peripheral face of the drum 38 and extending parallel to its axis.

The drum 3% also has formed on its periphery four other T-shaped guideways M] (Fig. 4) which extend lengthwise of the drum, The .guideways 40 are equally spaced apart around the drum and each of the guideways is positioned in thedrum between two of the guideways 38. Each of the guideways 40 has slidably mounted therein a T- shaped slide 42 from which a pin 44 extends radially of the drum. This pin is received in semicircular recesses formed in the adjacent ends of two of the segments 28 (Fig. 3). The T-shaped slides 42 extend forwardly beyond the forward end of the drum 3!] and eachslide has formed in its inner face, i. e. the face which is nearest to the axis of the drum, a recess 46 (Fig. 4) that extends laterally of the slide. Seated in each recess 46 is a flange 48 formed on an adjustable screw 50 which is threaded into the forward end of the drum Mparallel to its axis. Each screw 50 has on the forward end thereof a knurled head 52 by which it may be rotated to adjust the T-shaped slide 42 forwardly or rearwardly,

As will hereinafter be described, the drum 30 is rotated ninety degrees each time it is operated by the transmission M and in 'each stopping position of the drum one of the pins 44 lies between the two depending rods 26 on the horizontal edge gage shifting lever 20. Therefore, by

adjusting the positions ofthese pins the location of the edge gage after each operation of the transmission can be determined, During the adjustment of any one of these pins 44, the two adjoining segments 28 move about the adjacent pins which are engaged by the other ends of the segments 28 and the T-shaped slides 3% on which the segments are pivoted near their mid-points move rearwardly or forwardly in their guideways 38 half the distance of the adjustment. Each of the four pins 4 may be adjusted to give-four different, but variablepositions of the edge gage [2 if the drum 30 is causedto make a complete revolution in four stages. As the drum 39 always stopswith one of these pins between the two depending rods 26 on the horizontal lever 29, the pins 44 positively control the position of the edge gage l2 forwardly or rearwardly.

Each of the T-shaped slides 52 has on it a scale 54 (Fig, 3) and the drum 38 is provided 7 to adjust the edge gage l2 a chosen distance.

The scales 54 are preferably arranged to indicate in sixteenths of an inch the adjustment of the edge gage l2.

The shaft 32 to which the drum 38 is secured is rotatably mounted in a bearing 53 secured to a casing mountedon the right-hand side of the machine, The shaft 32 has formed on its rear end (Fig, 4) a gear 62 which meshes with a smaller gear 64 on an intermediate shaft 66 which is rotatably mounted in the casing. Formed on the other end of the shaft 56 is another gear 68 which meshes with a gear 10 that is keyed to a shaft 12. The shaft 12 is rotatably mounted in the casing and extends through a central opening in the shaft 32. The ratio betweeen the gears 62, 64, 68 and it! which connect the shaft 32 to the shaft 12 is such that the shaft 32 is rotated through ninety degrees during each revolution of the shaft 12. V

The shaft 12 has rotatably mounted on it a sleeve 14 having a projecting flange 76 at one end to which a pulley 18 is attached by screws 80. The flanged end of the sleeve i4 engages the rear faceof a-bearing 82 in the casing 63. Rotatably mounted on the sleeve 74 is a second flanged sleeve 84 to which a pulley 86 is attached by screws 88 which pass through the flange on the sleeve 84. The pulleys 18, 86 are driven in opposite directions by belt 9d, 92 which connect the pulleys 78, 86 to pulleys on the main shaft of the channeling machine (Fig. 1)

The rear portion of the outer sleeve 8 t functions as a clutch member and to this end is provided with a series of buttress-shaped teeth 94 which are spaced about its periphery, The rear end of the inner sleeve 14 extends rearwardly beyond the 'rear end of the outer sleeve M and has secured to it a second clutch member 96 which also has spaced around its periphery a series of' buttress-shaped clutch teeth 93 which face in the opposite direction to the teeth 94 on the clutch member 84. Theclutch teeth 94, 98 are selectively coupled to the shaft 12 by a connecting mechanism which consists of a clutch slide I02 (Figs. 4 and 5) having a depending tooth I09 which is normally positioned in the space between the clutch teeth 9:3, 98. The clutch slide. I92 'is supported in guideways I M which extend parallel to the axis of the driving shaft 12 and are formed "in a block I96 secured to the shaft 12 rearward of the clutch member 96. g 7

Theclutch slide I62 is moved, by means here-- inafter described, forwardly or rearwardly, to carry'the tooth HIE] 0n the slide into engagement with one or other of the series of clutch teeth 96, 98' to cause the shaft 12 to be driven in one direction-or theother. The clutch slide I82 has in its lower-face two recesses its one or other of which isengaged by a spring plunger lit in the block 106 when the clutch slide is moved forwardly or rearwardly to, hold the slide tooth in engagement with the clutch teeth that it has been meshed with by the movement of the slide.

The clutch slide I02 has extending upwardly from it a projection II2 (Figs. 4 and 7) which, in the stopping position of the parts, engages in a recess formed in a clutch trip slide II4 positioned above the clutch slide I02. The clutch trip slide H4 is mounted in a guideway formed in a block II6 secured to the casing 60 (Fig. the clutch trip slide having formed in it a vertical opening IIS (Figs. 4 and '7) positioned at about the middle of the slide which receives the rounded end of one corner of a triangular shaped shifting lever I20.

The triangular shaped shifting lever I20 is positioned vertically (Fig. 4) with its rounded corner at the bottom and with its two upper corners pivoted in such manner that when the lever is operated it is moved about one or the other of its pivot points so that the lower end of the lever is moved backwardly or forwardly to shift the tooth I00. As is best shown in Figs. 4 and 9, the upper right-hand corner of the shifting lever I20 is pivoted by a pin I22 to one end of a horizontal link I24, the other end of which is pivoted on a horizontal stud I26 secured to the casing 60. The other upper corner of the shifting lever I20 is pivoted by a pin I28 (Fig. 9) to a second horizontal link I30, the other end of which is pivoted on a horizontal stud I32 secured to the casing 60. The two links I24, I30 which support the shifting lever I20 are parallel to each other and to the shaft 12 and lie one at each side of the upper end of the shifting lever. The ins I22, I28 which connect the upper corners of the shifting lever I20 to the links I24, I30 are each coaxial with the pins I32, I26 which connect the other ends of the links I24, I30 to the casing 60 when the lever I20 is in its neutral position shown in Fig. 4. Thus, there is at each of the upper corners of the lever I20 two normally coaxial pins one connecting the lever to a link and the other connecting the other link to the casing.

The shifting lever I20 is normally held in its neutral position shown in Fig. 4 by supporting pawls which will now be described. The end of the link I24, to which on corner of the shifting lever I20 is pivoted, has projecting from it a lug I34 the underside of which is normally engaged by the upper end of a pawl I36; and the end of the link I30 to which the other corner of the shifting lever I20 is pivoted, has projecting from it a lug I38 which is normally engaged by the upper end of a pawl I40. Th pawls I36, I40 are pivoted on horizontal pivots I42, I44 extending laterally of the driving shaft 12 and secured to the casing 60. The lower ends of the pawls I36, I40 below their pivots extend downwardly and are engaged by springs I46, I48 backed by the casing so that the springs urge the upper portions of the pawls toward each other and tend to hold their upper ends in position beneath the lugs I34, I38 on the links I24, I30.

The pawl I36 has an upwardly projecting arm I50 which is arranged to be engaged by a block I52 secured to a horizontal bar I54 that is sli-dably mounted in a guideway in the casing 60 parallel to the driving shaft 12. The pawl I40 likewise has an upwardly extending arm I56 which is arranged to be engaged by a block I58 on the bar I54. The blocks I52, I58 on the bar r54 engage the inner faces of the arms I50, I56 on the pawls I36, I40 so that if the bar is moved forwardly, the pawl I40 is moved from beneath the lug I38 on the link I30 and, if the baris moved rearwardly, the pawl I36 is moved from under the lug I34 on the-link I24. The bar I54 has secured to it the rear end of a forwardly extending rod I60, the forward end of which is pivotally connected to the upper end of an arm I62 connected in turn to the hand lever I6.

The hand lever I6 is pivoted on a horizontal pin I64 (Fig. 4) intermediate its ends so that it provides two short arms, one of which may be pressed downwardly by the operat-ors finger to move the rod I60 and bar I54 forwardly, and the other of which may be depressed to move the rod and bar rearwardly. Forward or rearward movement of the bar I54 causes the clutching of one or the other of the pulleys 18, 86 to the shaft 12 by releasing one or other of the pawls I36, I40 from the lug on the link which it engages and supports and thereby allows that end of the link and that corner of the shifting lever I20 to be swung downwardly about the pivot at the other end of the link by a spring pressed plunger I66 (Figs. 4 and 9). The spring pressed plunger I66 is slid-ably mounted in a recess I68 in an overhanging member I10 which is connected to the casing. The lower rounded end of th shifting lever 120 is thus moved forwardly or rearwardly under the urging of the spring pressed plunger I66, and through the clutch trip slide II4 moves the clutch slide I02 forwardly or rearwardly to carry the tooth I00 into engagement with one or other of the series of clutch teeth 94, 98. The shaft 12 is thus driven in one direction or the other, depending upon which series of clutch teeth the tooth I00 on the clutch slide has been moved into engagement with, by the depression of one or other of the arms of the hand lever I6.

In-the illustrative embodiment of this invention, each time the shaft 12 is rotated through a complete revolution, the cam I8 is rotated through a quarter of a revolution and upon the completion of the revolution of the shaft 12, it is automatically stopped even though the operator does not release the hand lever I6. The automatic stopping of the shaft after each revolution is effected by a control mechanism which will now be described. The shaft 12 has keyed to it a flanged collar I12 (Fig. 4) which is provided with a projecting pin I14 (Figs. 4 and 8) that extends into a concentric groove I16 formed in a cam I18 rotatably mounted on the flange or sleeve I of the collar I12. The cam I18 has a single high point I82 (Fig. 8). The periphery of this cam is engaged by a cam roll I84 (Fig. 4) that is rotatably mounted on the lower end of a vertical rod I86 which is slidably mounted in an opening I88 formed in a projecting portion I90 of the casing 60. The rod I86 has extending laterally from it a pin I 92 which projects out through a slot I94 (Fig. 4) in the projecting portion of the casing and is arranged, when the rod is raised by the high point I62 on the cam I18, to engage the underside of a substantially horizontal arm of a bell crank lever I96 which is pivoted on the pin I64 upon which the hand lever I6 is also pivoted. The other arm of the bell crank lever I 96 engage the forward end of a rearwardly extending rod I98 which is slidably mounted in an opening in an upstanding flange 200 on the casing 60.

The rod I98 is urged forwardly by a spring 202 sleeved on the rod between the flange 200 and an adjustable collar 204 on the forward end of the rod. The rear end of the rod I98 is pivotally connected .to the lower end of an arm 206 of a bell crank lever 208 which is secured to a horizontal shaft 2I0 rotatably mounted in bearings on the casing 60. The other arm of the supporting the shifting lever.

faces 222 on the guide rails 220.

bell'crank lever 203 extends forwardly and has formed in it a recess 209 which receives an adjustable eccentric pin 2I2 carried by the forwardly extending arm 213 of a lever 214 pivoted on the shaft 2I0 adjacent to the bell crank lever 2I2. The lever 2I4 has two rearwardly extending arms 2I5 (Figs. 4 and 5) to which are pivoted a pair of depending links 2I6 that extend downwardly on opposite sides of the links I24, I The depending links 2I6, 2IIi have formed in their lower ends vertical slots 2II which receive pins 2IB that extend laterally from the links I30, I24, respectively. 7

When the partsof the control mechanism are in their neutral position, the pins 2I8 are in the middle of the slots as they are shown in Figs. 4 and 5. When either of the pawls I36, I is moved from beneath its lug I34 or I38 on the links I24, I30 and the unsupported link is moved downwardly through the action of the spring pressed plunger I56, a hereinbefore described, the pin M8 onthe unsupported link moves'to the bottom of the slot in its associated link 2I6. As the shaft I2 rotates, the two vertical links 2 I6 are raised and then allowed to move down again by the high point I82 on the cam I18. -When the links 2I6 are raised the pin 2I8, which is at the bottom of the slot in one of the links, is

raised carrying the lowered link and the shifting o lever I20 upwardly to their original position, whereupon the pawl (I36 or I40) which was released is moved by its spring (146 or I40) to a position beneath its associated lug (I34 or I38) whereit will hold the shifting lever I20 in its neutral position. As the link 2I6 are raised the slot in the other link moves idly past the'pin 2I8 on the link which was not released. When the shifting lever I20, is thus raised, its lower rounded end moves the clutch trip slide I I4 back again to its neutral position.

At the beginning of the revolution of the shaft I2, theprojection II2 on the clutch slide I02 is carried out of the recess in the clutch trip slide II4 formed by a pair of laterally extending guide rails 220 (Fig. '7'). Near the end of the revolution of theshaft I2 as the clutch slide I02 is again moved back to its neutral position by beveled The beveled faces on the guide rails 220 are so arranged that, in whichever direction the shaft I2 is rotated, one of the beveled faces 222 will engage a beveled face 224' on the projection II2 of the clutch trip slide II4 near the end of the revolution and will return the clutch slide II4 to its neutral position and thus will cause the disengagement of the tooth I00 from whichever serie of clutch teeth 94, 98 it has been meshed with.

The links 2I6 are raised and lowered and the tooth I00 is withdrawn from engagement with the clutch teeth near the end of the first revolution of the shaft I2 through the action of the Cam- I18 and its controlled linkage upon the shifting lever I20. In' Fig. 8the projection I82 on the cam I13 is shown in its stopping position after having been rotated in a clockwise direction as seen in that figure and after having passed beneath the cam roll I04 and having caused the links 2I6 to be raised and then allowed them to be lowered. If the cam H0 were secured to the shaft I2 and the latter were to be rotated in the opposite direction, the links 215 would be raised and the tooth I00 disengaged from the .clutchteeth during aniear'ly' part of the machineicycle. To prevent this untimely disamigos engagement of the tooth I00, the cam H8 is, as aforesaid, rotatably mounted on the sleeve I80 and is coupled to the shaft I2 through a pinand-slot connection I14, I76 so that when the direction of rotation of the shaft is reversed, the cam is not rotated until near the end of the first revolution of the shaft. Thus, if the shaft I2 is caused to be rotated in a counterclockwise di rection from the position shown in Fig. 9, the pin II4 will travel idly around the groove IIS during the first three-quarter of the revolution of the shaft and will then engage the other end of the groove and will rotate the cam through onequarter of a revolution during which the tooth I00 is disengaged from the clutch teeth. It will be apparent that during succeeding revolutions of the shaft I2 in the same direction the cam IIS rotates with the shaft, and that during the first revolution of the shaft in the opposite direction the cam I'I8 remains stationary during the first three-quarters of that revolution and is then rotated with the shaft during the last quarter of the revolution. The shaft I2 is therefore stopped by the action of the cam I18 and its controlled linkage after a single revolution irrespective of the direction of rotation of that shaft. To prevent a second and undesired rotation of the shaft I2 if the operator holds the hand lever I6 depressed too long, one of the vertical links 2I6- (Fig. 5) has projecting from it a. pin 226 which, when the links are raised by the aforesaid cam IIB on the shaft I2, engages the underside of the pawl releasing bar I54 and raises the bar. When the bar I54 is raised, the block (I52 or IE8) thereon which is in engagement with the arm (I or I56) on the released pawl is moved above that arm thereby freeing the pawl which is then returned by its spring (I46 or I48) to its supporting position beneath the lug on its associated link. The cam I18, after raising the bar I54, allows it to move down again, however, and if the hand lever it is held depressed the bar will still be displaced forwardly or rearwardly. In that case one of the blocks I52, I50 on the bar will rest on the upper'end of the arm. of a pawl until the hand lever is released and a spring 228 (Fig. 1) returns it and the bar to their neutral positions. Upon the returner, the bar I54 and the blocks I52, I58 to their neutral positions (Fig. 4) Where the blocks I52, I50 are located between the arms I50, @551 the bar I54 is moved downwardlyinto its lowered position where the blocks will engage one ,or the other of the arms I50, I56 when the hand lever It is again actuated. The bar I54 is raised in itsguideway in the casing 60 against the action of. a spring 230 (Fig. 4) which is connected at one end to the bar and at its other end to the casing. V Afterthe tooth i00 has been disengaged from the clutch teeth 94. or 98, continued rotation of the shaft I2 is prevented by a brake which consists of an eccentric disc 232 that is secured to th rear end of the shaft I2 (Figs. 4 and 6) and a brake, member .234 which is pivoted on the casingIlI! adjacent to the disc 232;

Thebrake is so positioned that the eccentric disc' zl engages the-brake member 234 just before "the shait completes a revolution and causes the fJhaI-UtU stop at the end of its firstrevolution. Adjustment of the brake member 234 is eifected by 311"8CCGlltfiC 235 which extends through a slot ."(Fig 6) in the brakeinember and is mounted on astud 240 (Fig."l)' which is secured Ito-the casing 60.

iTh'efsp'eed offthe main shaft of "the machine relatively to the cam shaft 32 is such that about three step-by-step feeding movements are given to the work while the cam I8 is rotated 90 and the position of the edge gage I2 is being changed. For example, if the Work is fed 4" during each feeding movement, the work will be fed about While the position of the edge gage is being changed. As the relative speeds of the main shaft of the machine and the cam shaft 32 are constant throughout the operation of the machine, all changes in the width of the feather made during the operation of the machine will be uniform, i. e., each change will be made while about three feeding movements are being given to the work.

To prepare the illustrated machine for operation, the cam I8 is first adjusted by appropriate operation of the adjusting screws 50. After the adjustment of the screws 50, the stud 44 which lies between the depending rods 26 will position the edge gage for shank operations and the other studs will be adjusted so that upon successive movements of the cam in the same direction the edge gage l2 will be moved appropriate distances forwardly or rearwardly by the cam- 18. To 013- erate upon a sole member, the operator presents the sole to the machine and presses its edge against the edge gage i2 and the channeling operation is started in the shank portion of the sole in the usual manner. As the forepart of the sole approaches the channeling knives the operator depresses the hand lever l6 and causes the transmission !4 to rotate the cam l8 ninety degrees and thereby effect the proper adjustment of the edge gage for the operation in the forepart. The operation of the hand lever I6 is repeated as the channeling operation approaches the toe end of the sole, as it leaves the toe and moves into the opposite forepart section, and again as it moves? into the shank portion of the sole. Thus, the cam [8 makes a complete revolution during the operation upon a sole and the gage is thereafter in an appropriate position for the commencement of. the channeling operation upon another sole member. It is contemplated that the cam will be rotated in one direction during the channeling operation upon a right sole and rotated in a reverse direction during the operation on a left sole, the direction of operation being controlled by an appropriate actuation of one side or the other of the hand lever [6.

If desired, the adjustable cam i8, disclosed in this application, may be dispensed with and instead a number of interchangeable cam plates each having a desired contour may be used. If the cam plates are used they will be constructed so that they can readily be changed on the shaft Having thus described our invention, what we claim as new and desire to secure by Letters Patent of the United States is:

1. In a machine for operating upon sole members having a work support and an edge gage associated with the Work support, an edge gage shifting lever, an adjustable cam for operating said shifting lever, power operated means for rotating said cam, and control means for said power operated means arranged automatically to stop the power operated means after the cam is rotated plurality of sections, power operated means for moving the cam relatively to the edge gage shifting lever a section at a time to produce adjustments of the edge gage, and means for connecting the power operated means with the driving mechanism of the machine whereby the adjustment of the edge gage is correlated with feeding mechanism of the machine.

3. A machine for operating upon soles comprising a work support, work feeding means, a feather forming knife arranged to operate upon a sole on the work support, an edge gage associated with the feather forming knife, an edge gage shifting lever, a rotatable cam arranged to operate the edge gage shifting lever, said cam being provided with a plurality of control points for determining different positions of the edge gage and having substantially straight surfaces connecting the different control points, and power operated means for rotating the cam from one control point to an adjacent control point, said power operated means being connected with the driving mechanism of the machine whereby the adjustment of the edge gage is correlated with the operation of the work feeding means and uniform changes in the width of the feather formed on the sole are produced.

4. In a machine for operating upon sole members, a work support, an edge gage associated with the work support, power operated means for adjusting the position of the edge gage during the operation of the machine, said power operated means including a rotatable edge gage shifting cam having a plurality of control points equally spaced about its circumference, each control point being arranged to determine a position of the edge gage, and means for causing the power operated means to render the control points sequentially effective to shift the edge gage.

5. A machine for operating upon sole members comprising a work support, an edge gage associated with the work support, means for adjusting the position of the edge gage during the operation of the machine, said means including an edge gage shifting cam, and means for adjusting the contour of said cam to adapt its operation to soles of different sizes and shapes.

6. A machine for operating upon sole members comprising a work support, a tool arranged to operate upon a sole on the work support, and means for controlling the operations of the tool upon the sole, said means including an adjustable cam for correlating the operations of the tool to the size and shape of the sole member operated upon, and cam operating mechanism associated with the driving mechanism of the machine.

'7. A machine for operating upon sole members comprising a work support, an edge gage associated with the work support, means including a cam for adjusting the position of the edge gage during the operation upon a sole, said cam comprising a plurality of adjustable sections, and means for adjusting the cam sections to adapt the operation of the cam to different types of work.

8. A machine for operating upon sole members comprising a work support, work feeding means, a tool arranged to operate upon a sole on the work support, an edge gage associated with the tool, a rotatable edge gage shifting cam connected with the edge gage, said cam comprising a plurality of adjustable segments for determining different positions of the edge gage, power operated means for rotating the cam, and means for connecting the power operated meanswith the driving mechanism of the machine whereby the adjustment of the edge gage is correlated with the operation of the work feeding means and uniform changes in the location of the point of operation of the tool with respect to the sole edge are effected.

9. A machine for operating upon sole members comprising a work support, an edge gage associated with the work support, means for controlling the position of the edge gage during the operation of the machine, said means including a power driven shaft, a plurality of pins for positioning the edge gage, said pins being equally spaced about the periphery of the power driven shaft, means for adjusting the pins axially of the shaft, segments connecting said pins, and an edge gageshifting lever positively controlled by the pins and segments.

10. A machine for operating upon sole members comprising a work support, an edge gage associated with the work support, an edge gage shifting lever, a power driven cam for controlling the edge gage shifting lever, said power driven cam comprising a plurality of adjustable segments, means for operating the cam, and means for stopping the cam after it'has moved through a distance equal to the extent of the segment passing the edge gage shifting lever.

11. A machine for operating upon sole members comprising a Work support, an edge gage associated with the work support, an edge gage shifting lever, a rotatable cam connected with the edge gage shifting lever, said cam including a plurality of adjustable members for difierentially positioning the gage shifting lever, power operated means for rotating the cam to bring the different adjustable members into operative relation with the edge gage shifting lever, and means for stopping the power operated means as the different members are brought into operative relation with the gage shifting lever.

12. A machine for operating upon sole members comprising a work'support, an edge gage associated with thework support, an edge gage shifting cam operatively connected with the edge gage, and power operated means for actuating the edge gage shifting cam, said power operated means comprising a driving member, a cam control shaft, means for clutching the driving member to the cam control shaft, and

for automatically disengaging the clutch after the cam control shaft has been rotated a predetermined amount.

13. A machine for operating upon sole members comprising a work support, an edge gage associated with the work support, an edge gage shifting cam operatively connected with the edge gage, and power operated means for actuating the edge gage shifting cam, said power. operated means comprising a driving member, a cam control shaft, means for clutching the driving member to the cam control shaft, clutch control means associated with the cam control shaft and arranged to disengage the clutch aft-- er a predeterminedperiod of operation of the cam control shaft, and a brake associated with the cam control shaft for stopping that shaft at a selected position.

14.. A machine for operating upon sole members comprising a work support, an edge gage associated with the work support, an edge gage shifting cam operatively connected with the edge gage, and power operated means for actuating the edgegage shifting cam, said power operated means comprising a driving member,

a cam control shaft, a clutch for connecting the driving member to the cam control shaft, a clutch operating member, means for returning the clutch operating member to a neutral position after it has connected the driving member with the cam control shaft, and a device on the clutch operating member arranged automatically to disengage the clutch after the cam control shaft has been rotated a predetermined amount.

15. A machine for operating upon sole members comprising a work support, an edge gage associated with the Work support, an edge gage shifting cam operatively connected with the edge gage, and power operated means for actuating the edge gage shifting cam, said power operated means comprising a driving member, a cam control shaft, a clutch for connecting the driving member to the cam control shaft, a clutch operating member, and control means for the clutch operating member including a cam connected with the cam control shaft and arranged automatically to return the clutch operating member to a neutral position after the driving member has been clutched to the cam control shaft.

16. A machine for operating upon sole mem bers comprising a work support, an edge gage associated With the Work support, an edge gage shifting .cam operatively connected with the edge gage, and power operated means for actuating the edge gage shifting cam, said power operated means comprising a driving member, a cam control shaft, a clutch for connecting the driving member to the cam control shaft, clutch operating means, and means for returning the clutch operating means to a neutral position after the engagement of the clutch has been effected, said returning means including a cam which is connected to the cam control shaft by a lost motion connection.

1'7. A machine for operating upon sole members comprising a work support, an edge gage associated with the work support, an edge gage shifting cam operatively connected with the edge gage, and power operated means for actu-' ating the edge gage shifting cam, said power operated means comprising a driving member, a cam control shaft, a clutch for connecting the driving member to the cam control shaft, 2. means associated with the cam control shaft clutch operating member, means for returning the clutch operating member to a neutral position after the engagement of the clutch, and control means on the clutch operating member arranged automatically to effect disengagement of the clutch after the cam control shaft has been rotated a predetermined amount.

18, A machine for operating upon sole members comprising a Work support, an edge gage associated with the work support, an edge gage shifting cam operatively connected with the edge gage, and a power operated device for actuating the edge gage shifting cam, power operated device comprising driving means, a cam control shaft, a clutch for connecting the driving means to the cam control shaft to effect either forward or reverse rotation of the cam control shaft, and manually operable means for determining the direction of rotation of the cam control shaft.

19. A machine as defined in claim 18 in which clutch control means are associated with the cam control shaft and are arranged automaticallyto disconnect the clutch after the cam control shaft has been rotated a predetermined amount in either a forward or a reverse direction.

20. A machine for operating upon sole members comprising a work support, an edge gage associated with the work support, an edge gage shifting cam operatively connected with the edge gage, and a power operated device for actuating the edge gage shifting cam, said power operated device comprising driving means, a cam control shaft, a clutch arranged to connect the cam control shaft to the driving means for rotation in either a forward or a reverse direction, and clutch control means associated with the cam control shaft, said clutch control means comprising a cam connected to the cam control shaft by a lost motion connection and arranged to disengage the clutch near the end of a predetermined period of operation of the clutch control shaft.

21. A machine for operating upon sole members comprising a work support, an edge gage associated with the work support, an edge gage shifting cam operatively connected with the edge gage, and a power operated device for actuating the edge gage shifting cam, said power operated device comprising driving means, a cam control shaft, a clutch arranged to connect the driving means to the cam control shaft to effect rotation of the cam control shaft in either a forward or a reverse direction, means for automatically releasing the clutch after the cam control shaft has rotated a predetermined amount in either direction, and a brake associated with the cam control shaft for determining the stopping position of that shaft.

22. A machine for operating upon sole members comprising a work support, an edge gage associated with the Work support, an edge gage shifting cam operatively connected with the edge gage, and a power operated device for actuating the edge gage shifting cam, said power operated device comprising a pair of oppositely rotating driving members, a cam control shaft, a clutch for connecting one or the other of the oppositely rotating driving members to the cam control shaft, a clutch operating device including a shifting lever arranged to effect selective clutching of the driving members to the cam controlv shaft, and control means for the clutch operating device including a cam associated with the cam control shaft and arranged automatically to return the shifting lever to its neutral position after the cam control shaft has moved a predetermined amount.

23. A machine for operating upon sole mem-' bers comprising a work support, an edge gage associated with the work support, an edge gage shifting cam operatively connected with the edge gage, and a power operated device for actuating the edge gage shifting cam, said power operated device comprising a pair of oppositely rotating driving members, a cam control shaft, change speed gearing for connecting the cam control shaft to the edge gage shifting cam, a clutch for connecting one or the other of the oppositely rotating driving members to the cam control shaft, a clutch operating device including a shifting lever, and control means for the clutch operating devices including a cam connected with the cam control shaft by a lost motion connection, said cam being arranged automatically to return the shifting lever to a neutral position after the edge gage shifting cam has been rotated a predetermined amount.

24. A machine for operating upon sole members comprising a work support, an edge gage associated with the work support, an edge gage shifting cam operatively connected with the edge gage, and a power operated device for actuating the edge gage shifting cam, said power operated device comprising a pair of oppositely rotating driving members, a cam control shaft, change speed gearing for connecting the cam control shaft to the edge gage shifting cam, the ratio of the change speed gearing being such that the cam control shaft makes a complete revolution.

while the edge gage shifting cam is rotated through a predetermined distance, a clutch for connectin one or the other of the oppositely rotating driving members to the cam control shaft, a clutch operating device including a lever arranged to effect a selective clutching of the driving members to the clutch control shaft, and control means for the clutch operating device arranged to return the shifting lever to a neutral position near the end of the first revolution of the cam control shaft.

25. A machine for operating upon sole members comprisin a work support, an edge gage associated with the work support, an edge gage shifting cam operatively connected with the edge gage, and a power operated device for actuating the edge gage shifting cam, said power operated device comprising a pair of oppositely rotating driving members, a cam control shaft, a clutch for connecting one or the other of the oppositely rotating driving members to the cam control shaft, a clutch operating device including a shifting lever and a clutch control member, means for returning the shifting lever and the clutch control member to a neutral position after the clutch has been connected, and control bars on the clutch control member arranged automatically to disconnect the clutch near the end of a revolution of the cam control shaft.

26. In shoe machines and the like, a pair of oppositely rotating driving members, a driven shaft, means for selectively connecting the oppositely rotating driving members to the driven shaft, said means comprising a clutch arranged for engagement with one or the other of the rotating members, clutch shifting mechanism including a shifting lever and a slide for selectively conmeeting the clutch to the rotating members, control means for the clutch shifting mechanism associated with the driven shaft and arranged to return the shifting lever and the slide to a neutral position after the clutch has been operated, and clutch shifting arms on the slide arranged automatically to disconnect the clutch after the driven shaft has been rotated a predetermined amount.

27. In shoe machines and the like, a pair of oppositely rotating driving members, a driven shaft, a clutch for selectively connecting the driving members to the driven shaft, a clutch operating device, and control means for the clutch operating device arranged automatically to dis connect the clutch after the driven shaft has been rotated a predetermined amount in either direction, said clutch control means including a cam connected to the driven shaft by a lost motion connection and arranged to be operated near the end of the predetermined movement of the driven shaft.

FRED RICKS. FRANK COLEMAN CHOICE.

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