US1066940A

US1066940A - Sole-rounding machine.

Info

Publication number: US1066940A
Application number: US59063910A
Authority: US
Inventors: Edward E Orr
Original assignee: United Shoe Machinery Co AB
Current assignee: USM Ltd; United Shoe Machinery Co AB
Priority date: 1910-11-04
Filing date: 1910-11-04
Publication date: 1913-07-08
Anticipated expiration: 1930-07-08

Description

E. E. OER.

SOLE ROUNDING MACHINE.

APPLICATION FILED Nov. 4, 1910.

1,066,940. Patented July .8, 191s.

6 5 SHEETS-SHEET 1. A99 0 ,e6

E. E. ORB.

SOLE ROUNDING MACHINE.

APrLIoATIoN FILED Nov.4,1o1o.

1,066,940. Patented July 8,1913.

5 SHEETS-SHBET 2.

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SOLE ROUNDING MACHINE.

APPLICATION FILED Nov. 4, 1010.

1,066,940, Patented July 8, 1913.

5 SHEBTS-SHEET 3.

E. B. (IRR.

SOLE ROUNDING MACHINE.

APPLICATION HLED Nov. 4, 1910.

5 SHEETS-SHEET 4.

Q *s Mm'ge www? 25,7 mf i @www 57W V4/gpg Patented July 8, 1913.

E. E. URB..

SOLE ROUNDING MACHINE.

APPLIUATION FILED Nov. 4, 1910.

Patented July 8, 1913.

5 SHEETS-SHEBT 5.

Erlkrl NTTE STATES PATENT UFFTE.

EDVARD E. ORR, OF WEYMOUTH, MASSACHUSETTS, .ASSIGNOR TO UNITED SHOE MACHINERY COMPANY, 0F PATERSON, NEW JERSEY, A CORPORATION 0F NEW JERSEY.

SOLE-RO'UNDING MACHINE.

Specification of Letters Patent.

Patented l illy 8,1913.

"o (ff/Z :if/mm, it may concern.'

Vlie it known that I, Emvinu) E. (hui, a citizen oil. the United States7 residing at l/Veymouth, `in the county ot No1-,tolk and State oit Massachusetts; have invented certain new and useful. Impriwements in Sole- .liounding liiachines; and I do hereby declare the 'follmving 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 invention relates to machines 'for operating upon the soles of shoes and more particularly to that class of machines which is utilized vfor rounding or rounding and channeling the sole ot a shoe after the outer sole has been temporarily secured in position preparatory to permanently sewing or otherwise securing it to the shoe. ln machines ot this character as herctotore constructed it has been found desirable to guide the shoe during the operation upon the shank by a crease guide and to guide the shoe during the operation upon the :t'orepart by a guide which engages and guides the last close to the inseam or welt, the 'forepart guide being brought into engagement with the shoe by the operator in passing :trom the shank to the forepart and being disengaged trom the shoe when passing from the torepart to the shank. Machines oit this character have also been provided with a pattern cam or other form of pattern mechanism tor moving the 'forepart guide with relation to the rounding and channeling knives to vary the projection ot' the sole along' certain parts ot the shoe.

Tt is the object ot' the invention to provide novel and improved mechanism for varying the position ot the torepart guide whereby the projection oil the sole may be increased or diminished along any desired portion ot the orepart.

To this end the invention consists ot the :features and combinations hereinafter de scribed and referred to in the claims, the advantages oi. which will be obvious to those skilled in the art.

The invention is intended primarily as an improvement in the Goodyear rounding and channeling machine which is illustrated in the patent to French and Meyer7 No. 599,602, dated Feb. 22; 1898, although the broader 'features ot' invention are not Confined in their application to this machine but may be embodied in other it'orms oil machines the specific construction and arrangement ot the parts being varied or modified to suit the construction of the machine in which the invention is embodied.

The various features ot the invention will be readily umflerstoor'l trom an inspection ol the, accomlmnying drawings and the Alollowing` detailed description ot the machine illustrated therein.

In the drawings Figure l is a lejtt-hand side elevation o 'lf a rounding and channeling machine embodying the invention in its preferred term; Fig. 2 is a side elevation ot a part ol they standard oi" the machine showing the knee lever through which certain parts are imeratei'l; Fig. 3 is a trout elevation ot the machine; Fig. l; is a plan view7 partly in section, ot the parts shown in Fig. 2; Fig. 5 is a detail side elevation showing the devices :lor retracting the sole support; Fig. (3 is a side elevation partly in section showing the :torepart guide in position to engage the shoe; Fig. 7 is a detail elevation of the devices for operating the pattern cam; Fig. 8 is a :front elevation of these devices; Fig. t) is a sectional View on line Dwi), 8; Fig. l0 is a view similar to Fig. S showing the parts in a `diil'erent position and `ig. ll is a detail. plan view ot the reversing segment to be described.

The machine illustrated in the drawings is provided with a trimming knife Il carried by a vibrating lever 2; a Worksupport 3, which also acts as a crease guide for guiding the shoe during the operation along the shank; a sole-sulpiliort in the :torln ot a roll 4l, a channel liniit'e 5. a feed plate (i, which also acts as a cutting block, and a forepart guide 7 carried on the front end of a lever S. These parts are all constructed, arranged and operated in substantially the same manner as the corresponding parts shown and described in the French and hfeyer patent above referred to, to which reiter-ence may be had for a detailed description ot' their construction and mode o' operation.

The .lever carrying the :t'orepart guide is held normally in raised position by a spring and is connected through a laterally proiecting lug l() and chain ll with a treadle (not shown) by which the operator may throw the guide into and out ot operation at the proper times during the rounding and channeling ot the sole oit the shoe being operated upon. While operating upon the shank the shoe is guided by the crease guide 3 and as the ball line is reached the operator brings the forepart guide 7 down into position to engage the upper of the shoej retains it in engagement with the shoe during thel operation upon the forepart and throws it out of operationas the ball line on the opposite side of the shoe is reached. lVhen the forepart guide is engaged with the shoe the relative position of the guide and trimming or rounding knife is controlled to give the desired outline to the sole by a cain 12. rlhe cam is secured to a sleeve 13 surrounding the hub of the oscillating knife carrying lever 2 and frictionally connected therewith by a clamping ring let in a manner fully described in the French and Meyer patent above referred to. The sleeve 13 is provided with teeth 15 which are adapted to be engaged by a pawl 1G carried by the lever Svwhich carries the forepart guide. The pawl is formed on the lower end of a spring-pressed pin 17 and is provided with an inclined rear side adapted to ride over the teeth 15. When the pawl is in engagementwith the teeth it prevents movement of the sleeve 13 and cam 12 in one direction but allows these parts to be moved in the opposite direction by the frictional connection with the hub o-f the oscillating knife lever. The direction of the feeding movement imparted to the cam may be reversed by turning the pawl pin 17 through a half revo-lution and thus reversing the position of the pawl. The cam 12 is arranged to be engaged by a roll 13 on the forepart lever 3 when the forepart guide is brought into engagement with the shoe and the cam is shaped to gradually raise the forepart guide and thus decrease the project-ion of the sole when the cam is fed in one direction and to gradually lower the forepart guide and thus increase the projection of the sole when the cam is fed in the opposite direction. The feed of the cam in either direction is arrested by stops 19 and 2O formed at the ends of the cam.

In lorder that the projection of the sole may be increased or diminished along any desired part of the forepart of the shoe, means are provided for starting or reversingl the feed of the pattern cam while the forepart guide remains in engagement wit-h the shoe and this means is preferably so constructed that the cam may be started or reversed at the will of the operator. In the preferred embodiment of the invention shown, the pawl pin 17 is provided near its upper end with laterally projecting pins 21 which engage slots 22 formed in a sleeve 23. rEhe sleeve is loosely mounted upon a boss 24 formed on the upper end of the forepart lever 3 so that it may be raised to disengage the pawl from the teeth 15 and may be rotated to give the pawl a half revolution and thus reverse its position with relation to the teeth. The boss 24 is provided with an upwardly extending projection 25 on its front side which is arranged t'o underlie one of the pins 21 during the turning of the pawl and prevent engagement of the pawl with the teeth 15 until it has been turned a half revolution. The sleeve 23 is actuated to reverse the position of the pawl and thus reverse the feeding movement of the pattern cam by means of a reversing segment 2G which is pivoted at 27 to the end of the forepart lever 3 and is providedat its upper end with a cam segment 23 adapted to engage the under side of the flange 29 on the sleeve 23. The cam 23 operates to raise and lower the sleeve 23 to disengage and reengage the pawl with the teeth 15 and the sleeve is rotated to reverse the position of the pawl by a gear segment 30 formed on the segment 2G and arranged to engage gear teeth 31 formed on the flange 29. The reversing segment 26 is provided at its lower end with stops 32 for limiting its movementin either direction. rPhe reversing segment. is shifted at the will of the operator to start or reverse the feed of thevpattern cam by means of an arm 33 secured to a shifter rod 34e and arranged to engage lugs 35 and 3G, which project from the front face of the reversing segment 2G. The shifter' ro-d 3-1 is mounted to slide in bearings formed in the frame of the machine and is held from rotation by a guide pin 37 connected with one end of the rod and passing through a guideway formed in the frame of the machine. A friction device may be arranged to engage the guide pin 37 of the shifter rod to retain it in the position into which it is shifted by the operator. The shifter rod is actuated through a vertical rock shaft 3S, the upper end of which is provided with an arm 39 connected by a pivot pin l-O with a collar -11 on the end of the shifter rod. A gear segment 4t2 is secured to the lower end cf the rock shaft 33 and is engaged by a gear segment 1-3 formed on the rear end of a lever 44. A yoke 45 is mounted to slide upon the front end of the lever 14 and is shaped to receive the knee of the operator. By shifting the knee lever toward the right or left the operator may actuate the Vshifter bar lf-It to start or reverse the pattern cam at any time while the forepart guide is in engagement with the shoe.

Assuming that the machine is being operated to round and channel a shoe having a Baltimore edge and having a gradual increase in the projection of the sole about the toe, the mode of operation is as follows:- The parts are shown in Figs. 1 and 3 in position for operating upon a left shoe. During the operation upon the shank at the outside of the shoe, the shoe is guided by the crease gnide 3. Vhen the ball portion ot the shoe is reached the operator brings down the, it'orepart gnide 7 thns bringing the. roll 1S into engagement with the pattern calin 12 and bringing the pawl lt into engagement with the teeth 15 on the sleeve earrying ann. This movement oft the lever carrying the 'torepart gnid, also brings the reversing segment Qt into position with the lngs 35 and 256 on opposite sides ot the arm immediately atter the lorepart gnide is bronght into engagement with the shoe, the operator shifts the shi'lter rod :ist toward the right in Fig. 3 thns shitting the pawl 1G into the position indicated in Vlt`,igs. (3 to E). This starts the 'feed o'tf the pattern cam in a direction imlieated b v the arrows. The cam is now intermittently :nlvanced nntil the stop 19 engages the roll 18 when Yhe 'leeiliing niovenient o'l" the eain is arre-l'ed, Daring the iteed ot the eain the itorepart gnide is gradnally raised to decrease the projeetion ot the sole aronnd the ontsidc ball` portion o't' the shoe lforining a lialtimorc edge. l/Vhen the .ap line ot the, toe is reached the olnerator starts the pattern cam in the opposite direetion b v shitting the shifter bar toward the lettin Itig. I). l')nr ing this movement ot the shifter bar the arln 323 acts against the lng 35 to rock the reversing segment', in the direction indicated by the arrow in Fig. 10. During tho irst part oit' this movement the cain QS raises the sleeve 323 and li'lfts the pawl itt ont ot engagement with the teeth 15. llhis position oit' the parts is indicated in Fig. 1t). ',lhe gear segment 1:30 then engages the segment 3l and rotates the sleeve 2B and pawl lt' throngh a halt revolution after which the cani Q8 passes from nnder the flange 2t) on the sleeve and allows the sleeve to drop thns engaging the pa'wl 1G on the teeth 15. lhe Ylinal position ot' the reversing segment and the arm 33 is indicated in dotted lilies in Fig. 1t). rlhe Cain 12 will now be rotated in the direction opposite to that ,indieated by the arrows and will operate to gradnallyr lower the forepart gni de and thns 'adnallvy increase the pioiection ol the sole along the side ot the toe. then the point ol| the toe :is reached the it'eed et the pattern cam is reversed by shitting the bar 3T to itsI righthand position in Fig. 3. The pattern cam now ited in the direetion ot tlv arrow to gradually decrease the projection ot' the sole along 'the other Side ot the toe, the movement of the cani being arrestei'l when the stop 1t) reengages the roll 1S. When the ball line on the inside oit the shoe is reached the torepart gnide thr i wn ont ot operation. This leaves the parts in position `tor operating npon a right shoe. ln operating npon side of the shoe is reached.

engaged with the teeth 15 bnt at this time the pawl is in the position indieated in `l1`ig. fr) so that no leed ot the pattern cam takes place. lVhen the cap line. ot the toe is reaehed the operator starts the teed ol the pattern eam by shitting the shil'ter bar 3T toward the lel't in ltig. :3. ',l`he pattern cani is now 'l'ed in the direction opposite to the arrows and gradnaltv increases the projee tion o-l the sole. 'hen the point ol the toe is reached the l'eed ol the pattern ealn is reversed b v shitting the shil'ter bar toward the right in Fig. il and the pattern cani is 'l'ed in the direction olI the arrow to gradnall'vr decrease the projection ot the sole en the opposite side o'lI the toe. The I'eed ol' the can] is arrested blv the engagement ot the stop l!) with the roll 1S. lhe pattern cam is again started by shitting the shiliter rod ltoward the lett in lt`ig. $3 to gradnall)r increase the projection ot" the sole, along the ontsido ball portion and thlls torni the Baltimore edge at this part ot the shoe. 'llie Yl'orepart gnide is thrown ont olE operation as the ball line on the ontside ol the shoe is reached laving the pattern mechanism and torepart gnide in the position indi xated in Figs. t and C1, i. e. in position t'or operatA ing npon a lett shoe. tv shi lling the shilfter bar 37 at the proper tnnes i'lnring the ronnding ot the ilorepart, the operator ma)Y start and reverse the pattern mechanism to grad nall)r incr aise or decrease the projection olE the sole along anyY desired portion ot the Ytoreparlz. Bv arresting the shitting movement o'l the bar 3l when the pin 2l is over the cam projection Q5 or when the. sleeve 23 is supported on the cam 2H, the Yt'eed ot the pattern cani in either direction may be arrested by the operator and the cam nia'v be started in the saine direction in which it was moving when arrested or in the oppi site direetion by proper shitting ot bar 3T. The operator is therefore enabled to control the movements olf the pattern ram to inerease or diminish the |nfojeetion olE the sole as he may desire.

The ltnee volte. Alt may be ntilixed to withdraw the sole snpport #t `tor the insertion and removal ot the slice soles as well as being utilized to control the starting.` stopping or reversing ot the pattern mechanism. ltor this pnrpose in thel iamstrnction sl own, the linee yoke is provided at its rar end with a tlange Llt which engages the lower end ol an arm `li' secnred to a roel; shalt 11S. rlhe rochy shalft atri-ies a second arm Alttl, the rear end ot! which nmlerlies a collar 7i() secnred to a rod 5l. The npper end ot the rod 51 engages one arm ot a bell crank lever the other arm oit" which is arranged to engage a shonli'ler 523 on the slide 5l which carries the sole snpport. lv pressing l'orward on the knee yoke the operator ma v` throngh the, Connections described, withdraw the sole support for the insertion or removal of a shoe and may release the sole support so that it will be forced against the shoe by removing the forward pressure on the knee oke.

lVhile it is preferred to employ the specie construction and arrangement of parts shown and described in embodying the invention in the Goodyear rounding and channeling machine, it will be understood that this construction and arrangement is not essential and may be varied and modied without departing from the invention.

Having described the nature and object of the invention and specifically described one mechanism in which it may be embodied, what I claim isl. A machine for operating on the soles of slices, having, in combination, a tool, a guide, means for throwing the guide into action during the relative travel of the tool about the shoe, mechanism for moving the guide to vary the distance of the point of operation of the tool from the last, and means for reversing said mechanism while the guide is in action, substantially as described.

2. A machine for operating on the soles of shoes, having, in combination, a tool, a guide, means for throwing the guide into action during the relative travel of the tool about the shoe, mechanism for moving the guide to vary the distance of the point of operation of the tool from the last, and means for starting and reversing said mechanism while the guide is in action, substantially as described.

3. A machine for operating on the soles of shoes, having, in combination, a tool, a guide, means for throwing the guide into action during the relative travel of the tool about the shoe, mechanism for moving the guide to vary theV distance of the point of operation of the tool from the last, and means for starting and reversing said mechanism at the will of the operator while the guide is in action, substantially as described.

4. A machine for operating on the soles of shoes, having in combination, a tool, a guide, means for throwing the guide into action during the relative travel of the tool about the shoe, mechanism for moving the guide to vary the distance of the point of operation of the tool from the last, and means for starting, stopping or reversing said mechanism. while the guide is in action, substantially as described.

5. A machine for operating on the soles of shoes, having, in combination, a tool. a guide, means for throwing the guide into action during the relative travel of the tool about the shoe, mechanism for moving the guide to vary the distan-ce of the point of operation of the tool from the last, and

means for starting, stopping or reversing said mechanism at the will of the operator while the guide is in action, substantially as described.

6. A machine for operating on the soles of shoes, having, in combination, a tool, a guide, means for throwing the guide into action during the relative travel of the tool about the shoe, a pattern mechanism for controlling the guide, means for feeding the pattern mechanism in one direction to increase the distance of the point of operation from the last, and for feeding the pattern mechanism in the opposite direction to decrease the distance of the point of operation from the last, and means for starting and reversing the pattern mechanism while the guide is in action, substantially as described.

7. A machine for operating on the soles of shoes, having, in combination, a tool, a guide, means for throwing the guide into and out of action during the relative travel o-f the tool about the shoe, a cam. for moving the guide to vary the distance of the point of operation from the last, mechanism for feeding the cam in opposite directions, and means for reversing the cam while the guide is in action, substantially as described.

8. A machine for operating on the soles o-f shoes, having, in combination, a tool, a guide, means for throwing the guide into and out of action during the relative travel of the tool about the shoe, a. cam for moving` the guide to vary the distance of the point of operation from the last, mechanism for feeding the cam in opposite directions, and means for reversing the cam at the will of the operator while the guide is in action, substantially as described.

9. A machine for operating on t-he soles of shoes, having, in combination, a tool, a guide, means for throwing the guide into and out of action during the relative travel o-f the tool about the shoe, a cam for moving the guide to vary the distance of the point of operation from the last, mechanism for feeding the cam in opposite directions, means for starting and reversing the cam while the guide is in action, and stops for limiting the movements of the cam in each direction, substantially as described.V

10. A sole ro-unding machine, having, in combination, a trimming knife, a forepart guide movable into and out of operation, pattern mechanism for moving the guide to vary the projection of the sole, and means for reversing the pattern mechanism while the forepart guide is in operation, substantially as described.

1l. A sole rounding machine, having, in combination, a trimming knife, a forepart guide movable into and out of operation, pattern mechanism for moving the guide to vary the projection of the sole, andV means for reversing the pattern mechanism ioo at the will of the operator while the torepart guide is in operation, substantially as descriliied.

1Q. .A sole rounding machine, having, in combination, a trimming kni't'e, :L Ytorepartv guide n'iovable Vinto and out oit' operation, a reversible cam for moving' the guide to increase or decrease the projection ot the sole, means tor starting and reversing the cam while the guide is in operation, and stops for .liniiting the movement ot the cam ,in either' direction, substantially as described.

13. A sole rounding machine, having, in combination. a trimming linile, a :t'erepart guide, .movable into and ont ot operation, a support carrying the gnide, a pattern cam engaged by the support when the guide is thrown `into operation, a ratchet wheel connected with the cam, a pawl carried by the support iter engaging the ratchetwheel, and means Afor reversing the pawl while the snpport remains in engagement with the cam, substantially as tlescribed.

111-. A sole rounding machine, having, in combination, a trimming linit'e, a `torepart guide movable into and out oit operation` a support ter the guide, a cam engaged by the support when the guide is in operation, means itor il'eeding the cam in either direction, a pawl carried by the support 'for controlling the movements ot the cam, devices `t'or reversing the pawl at the will ot-the operator while the support remains in engagement with the cam, substantially as dcscribed.

15. A ,sole rounding machine, having. in combination, a trimming ltni'le7 a ilforepart guide movable into and ont oit operation, a support Afor the guide, a cam engaged by the support when the guide is in operation, 'trietional means for intermittently moving the cam in either direction, a ratchet wheel connected with the cam, a pawl carried by the support and arranged to engage the ratchet wheel, and means under the control oit the operator :tor reversing the pawl at will while the support remains in engagement with the cam, substantially as described.

1G. A sole'ronnding machine, having, in combination, a trimi'ning kni'le, a guide, a reversible cam for moving the guide to increase or decrease the projection oit. the sole, means including a laterally movable knee yoke for reversing the movement ot the cam while the torepart guide is in operation, a sole support, a slide on which said support is n'ionnted, and devices between yoke and slide itor retraeting the slide when the yolie is pressed forward, substantially as described.

17. A machine for operating on, the soles of shoes, having, in combination, a tool, a guide, means tor throwing the guide into action during the relative travel oit the tool about the shoe, mechanism rendered operative by the throwing o the guide into action tor moving the guide to vary the distance oft the point ol. operation oil the tool lrom the lastaand means 'tor reversing said mechanism while the guide is in action, substantially as described.

1t?. A machine `lor operating on the soles ot shoes, having, in colnbination, a tool, a guide, means .tor throwing the guide into action during the relative travel ot the tool about the shoe, mechanism rendered operative by the throwing ot' the guide into action tor moving the guide to vary the distance ot the point ot. operation ot" the tool from the last. and means :tor starting and reversing said mechanism while the guide is in action, substantially as described.

19. A machine Al'or operating on the soles ot shoes, having, in combination, a tool, a guide, means for throwing the guide into action during the relative travel ot the tool about the shoe, mechanism` remlered operative by the throwing ol the guide into action tor moving the guide to vary the distance ot' the point ot operation oll the tool :trom the last, and means t'or starting and reversing said mechanism at the will ot the operalor while the guide is in action, substantially as described.

20. machine `l'or operating on the soles ol'v shoes, having, in combination, a tool, a guide. means tor throwing the guide into action during the relative travel oit the tool about the shoe, mechanism remlered operative by the throwing ol the guide into action t'or moving the guide to vary the distance ot the point ot operation oli the tool, from the last, and means tor starting, stopping and reversing said mechai'iism while the guide is in action, substantially as described.

21. A machine tor operating on the soles oit shoes, having, in combination, a tool, a guide, means Alor throwing the guide into action during` the relative travel oil the tool about the shoe, mechanism rendered operative by the throwing oit the guide into action tor moving the guide to var v the dism tance ot the point oit operation ot the tool Atrom the last, and means tor starting, stopping or reversing said mechanism at the will ot the operator while the guide is 1n action, substantially as described.

22. A machine tor operating on the soles of shoes, having, in con'ibination, av tool, a guide, means 'tor throwing the guide into and out ot action during the relative travel ot the tool about the shoe, a cam 'tor moving the guide to vary the distance otE the point ot operation trom the last` mechanism rendered operative by the throwing ol the guide into action tor ileeding the cam in one ot two opposite directions, and means tor reversing the leed while the guide is in action, substantially as described.

98. A machine :tor operating on the soles of shoes, having, in combination, a tool, a guide, means for throwing the guide into and out of action during the relative travel of the tool about the shoe, a cam for moving the guide to vary the distance of the point of operation from the last, mechanism rendered operative by the throwing of the guide into action for feeding the cam in one of two opposite directions, and means for reversing the feed at the will of the operator while the guide is in action, substantially as described.

24. A machine for operating on the soles of shoes, having, in combination, a tool, a guide, means for throwing the guide into and out of action during the relative travel of the tool about the shoe, a cam for moving the guide to vary the distance of the point of operation from the last, mechanism rendered operative by the throwing of the guide into action for feeding the cam in one of two opposite directions, means for starting and reversing the feed while the guide is in action, and stops for limiting the movements of the cam in each direction, substantially as described.

25. A sole rounding machine, having, in

combination, a trimming knife, a forepart guide movable into and out of operation, pattern mechanism rendered operative by the throwing of the guide into action for moving the guide to vary the projection of the sole, and means for reversing` the pattern mechanism while the forepart guide is in operation, substantially as described.

26. A'sole rounding machine, having, in combination, a trimming knife, a forepart guide movable into and out of operation, pattern mechanism rendered operative by the throwing of the guide into action for moving the guide to vary the projection of the sole, and means for reversingthe pattern mechanism at the will of the operator while the forepart guide is in operation, substantially as described.

27. A sole rounding machine, having, in combination, a trimming knife, a forepart guide movable into and out of operation, a reversible cam rendered operative by the throwing of the guide into action for moving the guide to increase or decrease the projection of the sole, means for starting and reversing the cam while t-he guide is in operation, and stops for limiting the movement of the cam in either' direction, substantially as described.

EDVARD E. OBR. lVitnesses MARGARET L. GiLMAN, N. D. MCPHAIL.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C.