US1258847A - Machine for operating upon soles. - Google Patents

Description

E. E. WINKLEY.

MACHINE FOR OPERATING UPON SOLES.

APPLICATION FILED MAYZT; IQIS- 4 1 ,258,847 Patented Mar. 12, 1918.

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MACHINE FOR OPERATING UPON SOLES.

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APPLICATION FILED MAYZI, I916.

Pa tented Mar. 12, 1918.

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'hYW E. E- WINKLEY.

MACHINE FOR OPERATING UPON SOLES.

. APPLICATION FILED MAY27, 1916. 1,258,847. Patented Mar. 12, 1918.

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MW bmi E. E. WINKLEY.

MACHINE FOR OPERATING UPON SOLES.

v v APPLICATION FILED MAYzT I916- 1,258,470 Patented M81212, 1918.

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E. E. W INKLEY. MACHINE FOR OPERATING UPON SOLES.

APPLICATION HLED MAYZT, I916- Patented M31". 12, 1918.

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ERASTUS n. WINKLEY, or LYNN, nassecnusnrrs, Assrenon', BY Mnsnn ASSIGN- MENTS, T UNITED snon MACHINERY CORPORATION, or re'rnnson, new JnnsnY,

A CORPORATION OF NEW JERSEY.

MACHINE FOR OPERATING UPON SOLES.

Application filed May 27, 1916.

To a whom it may concern:

Be it known that l, ERASTUS E. l/Vmin war, a citizen of the Jnited States, residing at Lynn, in the county of Essex and State of Massachusetts, have invented certain new and useful Improvements in Machines for Operating Upon Soles; and i do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The present invention relates to machines for operating upon soles, and more particularly to machines for rounding and skiving a flat sole before it is incorporated in a boot or shoe.

The object of the present invention is to provide a rounding and skiving machine of an improved type which operates in an efficient manner to round the edge of the flat sole and skive the marginal portions of the shank accurately and in a minimum of time.

With this object in view, the several features of the invention consist in certain novel features of construction, combinations and arrangements of parts hereinafter described and claimed. the advantages of which will beobvious to those skilled in the art from the following description.

In the accompanying drawings illustrating the preferred form of the invention, Figure 1 represents a side elevation of the rounding and skiving machine; Fig. 2 is an end elevation of the machine shown in Fig. 1 with the top portion broken away; Fig. 3 is a top plan view of the machine with the upper portion removed, and illustrating the position of the skiving and rounding knives relative to the sole; Fig. 4; is a detail illustrating the skiving knives in an inoperative position preparatory to the working stroke; Fig. 5 is a view similar to Fig. 4 illustrating the skiving knives in a .eparated position at the completion of the working stroke and during the return move ment; Fig. 6 is a detail illustrating a side elevation of a portion of the knife supporting head; and Fig. 7 is a detail illustrating the mechanism for locking the sole clamp in operative position.

Specification of Letters Patent.

Patented Mar. 12, rats.

Serial No. 100,237.

T he illustrated embodiment of the invention is preferably embodied in a rounding machine of the general type shown and described in the patents to Mayo No. 882,009, dated March 17, 1908, and No. 1,091,071. dated March 24, 1914. This machine comprises the usual stationary sole support and pattern 1 upon which the flat sole is held by clamping members 3 mounted upon the usual clamping head 1 which is slidingly supported in an overhanging arm The edge of the sole is trimmed by a rounding knife 7 which is supported upon a rotary table 10 which is actuated fromthe usual drive shaft 12 through the usual intermeshing bevel gears 13 and 1e. The'rotation of the table 10 is controlled by the shipper lever 15, fulcrumed upon the shaft 12 and arranged to release coope ating brake members 16 and permit the engagement of a clutch, indicated generally at 17, all as clearly shown and described in the patent to Mayo No. 1,091,071. The table is automatically stopped at the completion of one revolution by a dog 18 secured to the under side of the table and arrangedto engage with the end of a pivoted lever 19 which is actuated to release the shipper lever 15. The clamping head 4ioperated to clamp the sole upon the pattern 1 by a lever 20 fulcrumed upon the arm 5 at 21 and'having its opposite ends connected, respectively, with the head t and connecting rod 22. A. treadle 24. fulcrumed upon the lower portion of the machine frame, is connected with the rod 22 through a link 25 slidingly supported in bearings formed in a head 26 secured to the machine frame. With this construction, a depression of the treadle serves to elevate the link 25 and rod 22, forcing the clamping head down upon the sole. In the present in vention the clamping head is locked in. an operative position throughout substantially the entire operation upon the sole, and is thereafter automatically unlocked to release and permit the removalv of the sole. To this end the link 25 is 1 engaged upon opposite sides by a pair of cooperating rolls 27 which are received in taperedslots 28 formed in thehead 26. Each roll is normally retained To this end a slide 31 is supported upon the head 26 and is provided with oppositely extending flanges 82 at the bottom, which engage with pins 33 serving to elevate and unlock the rolls, as shown clearly in Fig. 7.

The slide is operated by a bellcrank fulcrumed upon the machine frame at 35 and having one arm 36 connected with the slide 31 through a link 37, and a second arm 38, which is operatively connected with a cam disk 40 to release the roll clutch a predetermined time. T 1e bellcrank is conveniently operated by a dog 42, mounted upon the face of the cam disk 4:0 and arranged to engage with a roll 43 journaled upon the outer end of the arm 38, as shown clearly in Fig. 2 of the drawings. The sole clamp is also arranged to be released by the operator, if so desired, during the operation of the machine; and to this end a depending arm 45 is secured to the shaft and is arranged to be conveniently manipulated by the operator.

' It will be obvious to those skilled in the art that the rounding knife passes completely about the edge of a flat sole which is clamped in a stationary position, and in order to minimize the time required for the rounding and skiving operations it is de".

sirable that the two operations so far as possible and without interference with one another, shall take place simultaneously. To this end, in the present invention after the rounding knife has completed its traverse along one side of the sole and is returning .upon the opposite side of the sole, the skiving knives are moved into an operative position upon the opposite sides of the sole, following the rounding knife. In the illustrated e abodiinent of the invention, as shown clearly in the drawings, the rounding knife starts and ends its operation at the toe of the sole, and the skiving knives are positioned, when out of operation, opposite the heel end of the sole and are moved toward the toe, following the rounding knife, to skive opposite margins of the shank portion of the sole. The operation of the skiving mechanism is conveniently controlled from the rotary table 10, which is arranged to start the skiving mechanism at a predetermined point in the rotation. The table carries upon the. underside a dog which is arranged to move a controlling arm 52, proj ecting into the path of the dog and connected with a second arm 53 by an oscillatory shaft 54 supported in vertical bearings 55 secured to the head of the machine. The oscillatory movement of the arms 52 and 53 upon the machine frame at 82.

. in the drawings.

serves, through suitable connections, to control a clutch, indicated at 57, which in turn controls the movements of the cam disk 40 operating the skiving mechanism. To-this end the arm 53 is connected with the upper end of an oscillatory arm 58 through a short link 60. The arm 58 is fulcrumed upon a bracket 56 and is provided with a second arm 61 secured thereto and connected at its outer end to a clutch controlling lever 63 through a link 65, as shown clearly in Fig. 1 of the drawings. The clutch controlling lever 63 is fulcrumed at 66 and is provided with a stud 67 which engages beneath a lateral projection 68 forming a part of the clutch 57. The usual form of roll clutch is employed and is arranged to be operatively connected by releasing the lateral projection 68 when the stud 67 is moved out of ou gagement therewith. With this construction it will be obvious to those skilled in the art that, when the arm 52 is oscillated by the dog 50, the bellcrank lever 63 will be moved to release the projection 68 to connect the clutch. invention the driving member 70 of the clutch is continuously rotated by a driving chain 71 driven from a main drive pulley 73.

The driven member of the clutch 57 is connected to the cam disk 40 through a transverse drive shaft 75 and intermeshing gears, indicated at 7 6, and connecting the shaft 7 5 with a cam shaft 78.

The actuating mechanism for the skiving knives is arranged to complete the operation of the knives upon the sole and thereafter return the knives to initial position during one complete rotation of the cam shaft 78. To this end the cam disk 4:0 is provided with a cam path operatively connected with one arm 81 of a bellcrank lever fulcrumed The second arm 83 of the bellcrank is operatively connected with an arm 85 of a second bellcrank lever through a link 86. The second arm 88 of the latter bellcrank is connected to a sliding head 90 through a link 91, as shown clearly in Fig. 1. The head 80 carries the skiving knives and is guided upon parallel rods 93 extending lengthwise of the sole when clamped in position, as shown clearly .Vith this construction one rotation of the cam disk 4:0 serves to move the head carrying the skivin'g knives from a position opposite the heel of the sole to a point opposite the ball line and finally back to the intial position at the heel.

It is desirable that the skiving knives and actuating mechanism shall be automatically stopped at the completion of the skiving op eration, and to this end mechanism is can veniently provided for returning the clutch controlling lever to initial position to disconnect the clutch at a predetermined time. A disconnecting arm 95 is secured to the In the illustrated embodiment of the arms 58 and 0 1, as shown clearly in Fig. 1. and is operated by the path cam 00 formed upon the face 97. of the cam disk 40. When the skiving mechanism is out of one ition the arm 50 is positioned as shown in Fig. 1 with relation to the cam path 01% and upon oscillating the arm 52 to connect the clutch the arm 05 is free to oscillate in the enlarged portion of the cam path. Alter the skiving mechanism has completed its operation and the knives have returned substantially to initial position, the arm 95 is engaged by a projection 98 in the cam path which serves to move the arm in a direction to move the stud 67 into the path of the projection (38 and disconnect the clutch. The clutch is not disconnected innnediately upon the engagen'ient of the arm95 by the projection 08 and the slight additional movement imparted to the cam disk 40 is sufiieient to position the end of the arm in the widened portion of the cam path, as shown clearly in Fig. 1. The clutch controlling lever (33 is provided with an operating handle 100 which permits the operation of the skiving mechanism to be placed under the control of the operator, if so desired. In order to cause the proper ope *ation of the clutch controlling lever to disconnect the clutch, it is desirable to provide a yielding connection between the actuating arm and the lever. To this end, as shown clearly in Fig. 1. the link provided with a laterally extending flange 101 at its upper end which receives a rod 102 connected to the free end of the arm 61. The rod 102 is provided with a collar 103 upon the lower end and a compression spring 104 surrounds the rod and is interposed between the collar 103 and the flange 101. 7

It will be obvious to those skilled in the art that, after the rounding knife has complcted its operation and prior to the stopping of the skiving mechanism it is essential to prevent manipulation of the shipper lever 15 by the operator. In the normal operation of the shipper lever a spring 105 is connected to the tail 106 of the lever and serves to retain the lever in the position shown in F in which the brakes 16 are applied and the driving clutch is disconnected. In order to lock the lever in this position during the completion of theskiving operation, a hook 107 is pivoted upon the machine frame at 108 and is arranged to project over the tail of the lever when in the position shown in Fig. 2. To this end an-arm 100 projects laterally from the "fulcrum 108 and 'is yieldingly connected with the actuating arm 61 through a link 110 connected to the actuating arm, a rod 111 connected to the arm 109, a spring 112 surrounding the rod and interposed between a lateral flange 113 "formed upon the upper end of the link 110, and a collar 114. secured to the end of the rod lllf 'lvith: this constructiom upon-Ythe actuation of the arm 61 to connect the clutch 70, the hook 107 is moved into the path -ot' oscillated to cause the clutch to be disconnected when the hook 107 is again moved into the inoperative position shown iii-Fig. 1.=

The skiving knives are normally positioned opposite the heel portion of the sole and when started are moved forwardtoward the toe of the sole, following the rounding knife. time required for both operations to a minimum, the skiving knives are arranged to engage with opposite margins of the shank during the advance movement of the knives toward the toe. Upon reaching the ball line the knives are automatically removed from engagement with the sole and are then returned to initial position opposite the heel. YVith this construction and mode of operation the sole is rounded and the margins of the shank skived in substantially the same length of time required to perform the rounding operation. This will be obvious from an inspection of Fig.3, in which it is seen that the skiving knives have substantially completed the skiving operation and are ready for the return movement to an inoperative position while the rounding knife is still completing the movement about the toe. In the illustrated embodiment of the invention each skiving knife, indicated at 115, is supported upon the free end of a depending curved arm 116 having a forked end to provide upper and lower hearing members 117 and 118, respectively, ful-' crumed upon the head 90. Each arm 110 is provided with an arm 120 extending rearwardly from the upper bearing 117 and provided with connections serving normally to swing the arms 120 outwardly and move the skiving knives toward one another. A bracket 122 is secured to the upper side of the head 90 and is provided with oppositely disposed arms 123 and 124: spaced vertically from one another and adapted to receive rods 125 and 126 connected to the free ends of the arms 120. Each rod 1s surrounded by a compression spring 127 which serves normally to separate the arms'12O and move the skiving cutters toward one another. The limit of movement of the cutters under the action of the springs is determined by adjusting members i 128 and 129 threaded, respectivelyyinthe arms 123 and 124. The skiving cutters are main- In order to reduce the tained in an inoperative position when p0- sitioned opposite the heel end of the sole by a pair of cams 130 which are supported upon the overhanging arm 5 of the machine frame. Each of these cams is engaged by a guide roll 131 journaled upon the frame 116, as shown clearly in Figs. 5 and 6 of the drawings. As the head carrying the skiving cutters is advanced toward the toe, the guide rolls 131 move along the surface of the cam plates 130 until opposite the breast of the heel, when the cam plates permit the inward movement of tie skiving cutters. Thereafter during the skiving operation the cutters are guided by the engagement of guides 133 supported upon the ends of the arms below the cutters with the pattern 1, to which the sole is clamped. At the completion of the skiving operation when the cutters reach a position opposite the ball line, it is desired to remove the cutters from engagement with the sole and to retain them in this position during the retracting movement of the head until the guide rolls 131 are again returned to the initial position. To this end a pair of cam levers 135 and 136. respectively, are ful crumed between their ends at 137 and 138. As the head 90 carrying the skiving cutters progresses lengthwise of the sole, the rear ends of the cam levers 135 and 136 are engaged by the inner faces of guide rolls 140 journaled upon the head 90, as shown clearly in Fig. 4, and arranged to oscillate the levers about the fulcrum into the relative positions shown in Fig. 5. In this position the forward ends of the levers engage with the guide rolls 131 to swing the arms 116 outwardly when each skiving cutter reaches the termination of the ball line. When the arm 116 has been swung outwardly by the cam lever to the limit of its movement, a stud 1 15, mounted upon each arm 120 engages in a recess 146 formed in one arm 1 17 of a bellerank lever fulcrumed at 148 upon the sliding head 90. This construction serves to lock the cutters in a separated position during the return movement of the head toward the heel of the shoe. When the head 90, carrying the skiving cutters, has been returned to a position in which the guide rolls 131 are opposite the rear end of the heel cam 130, the second arm 150 of each bellcrank lever engages with a stationary stud 151 which rocks the bellcrank lever to disengage the stud 145 from the recess 146 and permit the inward movement of the cutters under the action of the controlling springs.

11; will be obvious to those skilled in the art that the termination of the shank at the heel and forepart will vary with the style and size of the sole operated upon, and to this end improved mechanism is provided for adjusting the heel and forepart cam which control the movements of the skiving cutters into and out of operative posi-' tion. In general, the breast line of the heel extends in a direction normal to the median line of the sole, and in consequence the heel cams may normally be adjusted in unison in accordance with different lengths of heels. Each heel cam is secured to a head 155 slidingly mounted on the side of the overhanging arm and operated by a single arm 156 secured to a rock shaft 157 having a pair of depending arms 158 which areconnected, respectively, with the slides 155. Each slide 155 is provided with a guide rod 159 slidingly supported in a bearing 160 and having a collar 161 secured thereto, which is connected to the lower end of the arm 158 through a link 163. In order to adjust the relative positions of the heel cams 130, each cam is adjustably connected with the respective head 155through the usual bolt and slot connectiops, indicated at 166. The arm 156 is locked in any adjusted position by a pivoted latch 167 having a latch pin 168 which engages with one of a series of recesses 169 formed in the face of a station ary locking plate 170. It is essential that the forepart cams have provision for rela tive adjustment to cause the machine to operate properly upon right and left soles and to vary the adjustment to accommodate various styles of soles having a different inclination of ball line. To this end the cam levers 135 and 136 are pivoted respectively upon slides 17 2 and 173, which are mounted upon opposite sides of the arm 5. Both slides are connected to opposite ends of an adjusting lever 175 through links 176 and 177. The adjusting lever is pivoted midway between its ends upon a head 17 8 and by oscillating the lever, the slides and forepart cams may by adjusted relative to one another to accommodate either right or left soles. in order to determine the two positions of the adjusting lever 175 a pair of locating arms 180 and 181 are provided with slotted ends, indicated at 182, which are engaged by a latch pin 183 supported in the lever, as shown clearly in Fig. 4. It is desirable to secure a relative adjustment of the locating arms in order to adjust the two positions of the lever 175 for different styles of soles. To this end the arms are pivoted upon the head 178 and are connected at their free ends with snail cam paths 185 and 186 formed in a ings formed in a head 201 and a head 203."

The counter-shaft 200 is actuated by a driving chain 205 operated continuously by the main drive pulley73, as shown clearly in Fig.1. Theopposite end of the countershaft is provided with'a spiral gear 207 which meshes with oppositely disposed spiral gears 208, each of which serves to rotate a skiving cutter. A driving pinion 210 is secured to the lower end of a vertical shaft carrying the spiral gear 208, and meshes with an idlergear 211 which in turn drives a shaft 212 through intermeshing gears 213 and 214. The shaft 212isprovided with a driving. pinion 215 upon the lower end, which vdrivesthe cutter shaft through a second pinion. 216. Withsthis construction the cutters are rotated continuously and independently of the, swinging movements ofithe arms 116/ In orderfto permit the lengthwise movement of the head 90; carrying the '.cutters,..it will be noted from an inspection of the drawings that the spiral driving gear 207 issplined to the counter-shaft 200 and is retained in .posi

tion relative to -the head .90 byoppositely disposed bearing members 220 and 221, which are secured tothe head. The countershaft 200 may be disconnected from the driving connection 205' through. the provision ofa clutch 222 operatedby an actuating arm 223 positioned in convenient relation to the operator. 7

The preferred mode of operation :ofthe machine is as follows: After the sole blank I has been positioned upon the patternl, the treadle is depressed to operate the clamping head a, which is then locked in position through the engagement of the roll clutch with the treadle rod 25. The handle of the shipper lever 15 is next depressed to release the brake and connect the clutch 17, causing the operation of the rounding table 10. The clutch is retained in an operative position to cause the rounding knife 7 'to traverse completely about the edgeof the sole blank which is clamped in a stationary positlon' upon the pattern 1. In theillustrated embodiment of the invention the initial position of the knife is approximately at the toe of the. sole, and theknife first moves lengthwise of the sole toward the heel, next about the heel, and finally up the opposite side of thesole toward thev toe. After thev rounding knife haspassed about the heel.

andwhile the knife is operating upon the second side of the sole, the dog 50 on the under side of the table engages with the arm 52 to start the operation of the skiving mechanism. The first operationpf the skiving mechanism is to connect the driving clutch 70, after which the cam disk 40 is started and moves the head 90, carrying the skiving knives toward the toe.' During the passage of the knives along the heel they are retained in a separated position bythe cam plates 130. When the breast line of the heel is reached, the rolls are permitted to move toward one another until the guides 133 gage with opposite sides of the pattern 1. These guides serve to control the movements of the skiving knives during the skiving operation, causing the knives to follow the contour of the sole as determined by thepattern.

, are separated by the forepart cams 135 and r On reaching the ball line, the knives are retained during the return movement until opposite the rear end of the'heel. 'At this time the locking arms are moved into .an inoperative position and the cutter carrying arms are arranged to; again engage with the heel cams upon an advancing moverounding knife is progressing along theedge of the sole in advance of the skiving knives until the entire edge of the sole has been trimmed, after which the table is automatireally stopped by the dog 18. After the rounding mechanism has completedits oper- 40 and the lockinglhook 107 is returnedto the inoperative position shown in Fig. 1.

At the sanietime or prior thereto, the sole 1 is released by a dog carried by the cam' disk 40 and engaging with the arm 38 to unlock the roll clutch. I

While it is preferred to employ the specific construction and arrangement of parts shown and described, it will be understood that this construction and arrangement. is not essentlal except so far as specified in the claims, and may be changed or modified without departingfrom the broader features of the invention. a

The lnventlonhavmg been described,

what

1s clalmed is:

1. A machine for operating upon soles,

having, in combination, a sole clamp, a rounding knife, mechanism for causingthe rounding knife to traverse about the edge of the sole, a pair of oppositely, disposed vment of the head. In the meantime the skiving knives, mechanism for actuating the knives to move them toward the toe portion of the sole and for returning the knives to initial position opposite the heel, and means for causing the knives to engage With the sole during the advance movement toward the toe.

2. A machine for operating upon soles, having, in combination, sole clamping mech anism, a rounding knife, a rotary table carrying the knife, skiving mechanism, and means controlled by the table for starting the skiving mechanism constructed and arranged to cause the skiving knives to engage With the sole during the continued operation of the rounding knife.

3. A machine for operating upon soles, having, in combination, sole clamping means, a rotary table, a rounding knife sup ported upon the table, skiving mechanism, means controlled by the table for starting the operation of the skiving mec ianism, means for automatically stopping the table, and means for positively preventing further actuation of the table during the opera tion of the skiving mechanism,

4. A machine for operating uTpon soles, having, in combination, sole clamping means, rounding mechanism including a rotary ta ble, a head movable in a rectilinear path, a skiving knive supported upon the head, a rotary cam, means controlled by the rotary table for starting the cam, and operative connections between the rotary cam and head.

5. A machine for operating upon soles, comprising a rotary table, actuating mechanism for the table, means for automatically disconnecting the actuating mechanism to stop the table, and means for locking the mechanism in inoperative position.

6. A machine for operating upon soles, comprising a rotary table, a rounding knife carried by the table, skiving mechanism, a shipper lever, actuating mechanism for the table controlled by the shipper lever, means for automatically disconnecting the actuating mechanism, means for locking the shipper lever in an inoperative position after the actuating mechanism has been disconnected and during the continued operation of the skiving mechanism, and means for stopping the skiving mechanism.

7. A machine for operating upon soles, comprising a stationary sole clamp, a rotary table, a rounding knife carried by the table, mechanism for actuating the rotary table, skiving mechanism, means for starting the skiving mechanism constructed and arranged to commence skiving the sole during the continuous movement of the table, and means for automatically stopping the table during the operation of the skiving mechanism.

it A. machine for operating upon soles,

esser? comprising rounding mechanism, skiving mechanism, and means for controlling the operation of both mechanisms to cause the skiving mechanism to start the skiving oporation When the rounding mechanism is completing the cycle of operations and to cam, means for automatically connecting the clutch to start the cam, and means controlled by the rotation of the cam for disconnecting the clutch at the completion of the cycle of operations of the skiving knife. 7

10. A machine for operating upon soles, comprising sole clamping means, a rotary table, a rounding knife carried by the table, a driving shaft for the table, actuating mechanism for the shaft, skiving mechanism including a rotary cam, and means controlled by the rotary cam for locking the actuating mechanism in an inoperative position after the latter has been disconnected; 11. A machine for operating upon soles, comprising a rotary table, actuating mechanism for the table, a locking device adapted to retain the actuating mechanism inoperative, skiving mechanism, and means controlled by the rotary table forstarting the skiving mechanism and for simultaneously moving the locking device into an operative position.

12. A machine for operating upon soles,

comprising a head, a pair of skiving knives supported upon opposite sides of the head, mechanism for reciprocating the head, means for normally moving the knives together to engage with the opposite sides of the sole, mechanism for automatically separating the knives at a predetermined point in the advancing movement of the head, and means for locking the knives in separated position during the return movement of the head.

13. A m'achinefor operating upon soles, comprising a head, a pair of skiving knives supported upon opposite sides of the head,

supported upon opposite sides of the head, mechanism for reciprocating the head, means normally tending to move the knives toward one another, means for separating the knives during the movement of the head in one direction, mechanism for locking the knives in separated position, and means for unlocking the knives When the head is returned to initial position.

ERASTUS E. WINKLEY.

eating the head cam levers supported upon opposite sides of the head, and arranged to separate the knives at a predetermined point in the movement of the head, a lever connected With the cam levers for determining the position of the levers, and means for retaining the lever in one of two predetermined positions.

15. A machine for operating upon soles, comprising a head, a pair of skiving knives Gcpies of this patent may be obtained for five cents each, byefidressing the Commissioner of Patent Washington, D. C. e v

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