US1482379A

US1482379A - Channeling machine

Info

Publication number: US1482379A
Application number: US263389A
Authority: US
Inventors: Frederic E Bertrand
Original assignee: United Shoe Machinery Corp
Current assignee: United Shoe Machinery Corp
Priority date: 1918-11-20
Filing date: 1918-11-20
Publication date: 1924-02-05
Anticipated expiration: 1941-02-05

Description

Feb. 5, 1924. I 1,482,379

F. E. BERTRAND CHANNELING 'MAcHng E Filed Nov. 20 1918 8 Sheets-Sheet 2 Feb. 1924.-

F. E. BERTRAND CHANNELING MACHINE Filed Nov. 20; 1918 8 Sheets-Sheet 5 Feb. 5 1924.

F. E. BERTRAND CHANNELING MACHINE Filed NOV. 20, 1918 8 Sheets-Sheet 4.

Feb; 5 1924. 1,482,379 F. E. BERTRAND CHANNELING MACHINE Filed Nov. 20, 1918 8 Sheets-Sheet 5 Feb. 5- 1924.

F. E. BERTRAND GHANNELING MACHINE Filed Nov; 20, 1918 8 Sheets-Sheet 6 1 6 $3 m 0a 6 a 0 W 6 6 W a 2 w 7 v 5 M I- o/ 3 IIL Feb. 5 1924.

F. E. BERTRAND CHANNELING MACHINE 7 Filed Nov. 20. 1918 s Sheets-Sheet v Feb. 5 1924.

F. E. BERTRAND CHANNELING MACHINE 8 Sheets-Sheet 8 Filed Nov. 20, 8

Patented Feb. 5, 1924.

rannnnrc E. BEB'IRAND, or LYNN, messeicnnsn'rrs, Alssrcinoa "r unmen sHon MACHINERY CORPORATION, OF PATERS JERSEY.

on, n-nwannsn'v, A CORPORATION 01 new CHANNELING MACHINE.

Application filed November 20, 1918. Serial No. 263,389.

To all whom it may concern: 1

Be it known that I, Fnnnnnro E. BEKTRAND, a citizen of the United States, residing at Lynn, in the county ofEsseX and State of 5 Massachusetts, have invented certain; new

and useful Improvements in Channeling Machines; and I do herebydeclare the fdllowing 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.

This invention relates to machines for operating on or fitting the soles of boots and shoes, and more particularly to channeling machines for fitting turn soles and insoles prior to their incorporation in the boot or shoe. Other special uses of the invention will appear from the following description. One type of sole channeling'machine at present in commercial use for both turn sole and insole work, known as the Universal channeling machine, is illustrated in the present inventors prior patentsNo. 1,023,801, April 23. 1912, and No. 1,030,704, June 25, 1912. This type of channeling machine is so designedthat the usual toothed feed wheel, which acts on the between substance, is elim inated and in its stead the smooth-faced pressure gages, which cooperate with the edge and channel knives, are utilized as feeding devices. In such machines the sole is fed across the work support by a movement of the pressure gages and knives in the line of feed and afterthe feeding movement is completed a presser foot descends to hold the sole from movement on the table while the cuts are made on the back, or idle,,stroke of the feeding devices. In channeling the curved portion of the sole margin the sole is turned by the operatonrelatively to the line of feed, during the forward stroke of the feeding devices since at other times the sole is held firmly on thework support and no angular movement thereof is possible. As is customary' and necessary the pressure gages are held yieldingly on the sole, springs for this purpose being provided which bear on the slides which support the gages.

It has been found in operating machines of the type whereinla turning movement must be given to the sole while yieldingly engaged by the pressure gages, which determine the depth of the cut 'or, otherwise hold the sole in proper relation to the cutting devices, that the yielding gages permit an unskilled operative to buckleor distort the I rious as anyunusual movement of the pressure gages CllStUlbS their proper relation to the sole and on the cutting stroke will'cause the knives to dig in and make an improper cut. This causescripples and wasted work and material.

One'object of the invention is to prevent an occurrence of the condition just described. To this end one feature of the invention provides mechanism which will prevent any buckling or distortion of the sole should the operative crowd it against the edge gage while turning it during the feed. Themechanism in question comprises a construction and arrangement through which the pressure gages are automatically locked against anyvertlcal movement duringthe periods consumed in feeding the sole. This changes the yielding nature of the gages, essential to 1 making the cuts but unnecessary while feed ing, to a fixed or rigid nature and effectually 1 prevents any distortion of the sole from its normal. flat condition.

In making turn soles for sewed heel-seat work the shouldercut is frequently omitted about the heel seat. To produce such a fitting of turn soles the, shoulder knife is wholly removed from working position while channeling the heel-seat. In this type of turn sole the channel is cut farther in from the edge at the heel seat than around the forepart. Usually the base of the channel is (allowing for the thickness of the-between substance) from the edge of the sole throughout the forepart and shank, and '1'% from the edge of the sole at the heel seat. The change in the position of the channelis obtained by withdrawing the edge gage from the knives, as is usual'in' channeling machines. Operatives describe this condition as drawing on at the heel-seat. Afterthe heel-seat has been channeled and the shank at the opposite side'of the sole is reached it becomes necessary to return the shoulder knife toworking position and advance the edge gage to a position which again will produce a channel from the sole edge. These operations have ordlnarily been performed by hand through separate mechanisms for actuating the shoulder knife and the edge gage. Those skilled in the art will understand the absolute necessity, in returning these devices to their former positions, of bringing forward the edge gage before the shoulder knife is dropped on the sole. If the edge gage is still moving forward when the shoulder knife meets the sole the knife'will, until the gage reaches its forward position, cut through the between substance and thus produce a crippled sole. It is difficult for an operative to coordinate the two movements so that the edge gage will, without fail, be completely withdrawn, and thus properly position the sole beneath the shoulder knife, prior to the descent of the knife. Accordingly it has heretofore been proposed to mechanically connect the trains of mechanism which operate the shoulder knife and edge gage so that their movements may properly be controlled. Such proposals have not been entirely successful because the connecting mechanism has not been properly designed to effect the two movements in the required timed relation.

A further object of the invention is to perfect a controlling mechanism for the withdrawing and return movements of the shoulder knife and edge gage which will necessarily provide for a completion of the forward movement of the edge gage prior to the return movement of the shoulder knife. Accordingly a feature of the invention provides a single controlling device connected to both the edge gage and the shoulder knife operating mechanisms, and comprising devices which will lock and hold the shoulder knife in its raised position during the period of time that the edge gage is withdrawn and until said gage has been again returned to its forward position, when the lock is released and the knife again permitted to descend to its working position. Combined with this mechanism 1s a further feature of the invention comprising mechanism which permits a hand control of the edge gage through a limited movement and which may be used to enable the operator to draw on at the toe and produce a wider feather at this portion of the sole while the shoulder knife remains in operative position. Such wider feather at the toe is desirable to take care of the greater thickness of the lasted-in upper formed by the additional box toe materials.

A still further object of the invention is to enable operators to swing the soles being operated upon with greater accuracy when making the turn at the toe. To this end the machine may be provided with a central ized edge gage, that is, an edge gage arranged opposite the channel knife which constitutes the pivot on which the sole is swung; In the welt work machine the chamfer knife shown in said Patent No. 1,023,801 is omitted to permit the shifting in position of the edge gage. This brings the edge gage beneath the edge knife and means is provided to maintain a contact between the top of the gage and the bottom face of the edge knife when either the knife or the work support is adjusted for different thicknesses of soles; This provision insures a suflicient abutment for all sole edges.

Certain modifications in the form of the channel knife and presser foot are desirable when operating on pointed toe work to avoid breaking the channel flap when swinging at the toe, and roughing or marring the sole edge, particularly on turn work. Accordingly, further features of the invention comprise an improved channel knife and an improved presser foot which, respectively, overcome the tendency of the channel knife shank to break the channel flap, and the liability of the presser foot to mar the sole edge when operating on pointed toe work.

To the accomplishment of these objects and such others as may hereinafter appear, as will readily be understood by those skilled in the art, the invention comprises the features and combinations of parts hereinafter described and particularly pointed out in the appended claims.

The preferred form of the invention is illustrated in the accompanying drawings, in which:

Figure l is a front elevation of the head of a channeling machine of the type illustrated in the patents hereinbefore referred to, having the improvements of the present invention incorporated therein. A feed stroke has just been completed and the pressure gage lock has been released preparatory to the commencement of a cutting stroke;

Fig. 2 is a rear elevation of said channeling head;

Fig. 3 is an end elevation of said channel- 'ing head, a turn sole being shown in position in each of said views;

Fig. 4 is a plan of said channeling head with the driving pulley partly'broken away to show parts beneath it;

Fig. 5 is a plan of the parts below the line 55 of Fig. l, the head frame being sectioned;

Fig. 6 is an elevation, enlarged and partly in section, illustrating the mechanism for locking the pressure gages. The gage lock has just been operated and a feed stroke is about to commence. The channel knife block with attached parts has been broken away, and also the supporting bracket for the speed changing control lever;

" Fig. 7 is an enlarged horizontal section through the pressure gage locking mechanism and the driving shaft, a sole being shown in dotted lines in position to start the fitting operation;

Fig. 8 is an enlarged detail, in front elethe movements of the edge gage and V shoulder knife';

Fig. 20.

Fig. 9 is a vertical sect-ionon the line. 6- -9 of Fig. 8; i

Fig. 10 is a front elevation, partlyin sec tion, illustrating the hand control of the ed s g lli-is a detail, inplan, ,of theparts shown in. section on Fig. 10;

Figs. 12 and 13 are details, in plan, of a modified form of presser foot for use with soles having pointed toes V Fig. 14 is a detail, in front elevation, of the presser foot shown .in Figs. 12 andlil;

Fig. 15 isa detail, in plan, showing a modified form of channel knife for pointed toe Work;

Figs. 16 to 19 areviews of said modified channel knife, in elevation, from all four sides t Fig. 20 is adetail, in elevation, of a centralizing..edge gage as applied toa turn work machine; and

v F g. 21 1s a plan of the parts shown 111 While certain features of the .present in vention are applicable to both turn and insole work, for the purpose of illustration the invention has been" shown,.in a turn channeling machine of the typeuillustrated in the inventors prior patents hereinbefore referred to as, improved bythe addition of the edge knife pressure gage. shown in his prior Patent No. 1,630,710, June25. 1912, and thesubstitution of the eccentric drive shown n his prior PatentNo. 1,098,010, May 26, 1914, for the cam drive of the earlier patents. The type of machine illustrated is'one well known to shoe manufacturers having been the standard power channeling machine for turn work for many years, therefore the main features of its construction, in connection with which the features of the pres ent invention are employed, need be re ferred, to but briefly. It will be apparent to those skilled in the art from the following description that certain features of the invention are useful in operating upon shoes and can as readily be incorporated in a welt work channeling machine as in a turn work channeling machine.

In the machine illustrated in the drawings, the operating head is adjustably supported upon a column 2 (Figs. 1 and 2) by means of an intermediate member 4 to which the head is bolted. The frame 6 of the operating head is of general U formand has mounted therein the operating tools and feed mechanism, said parts being located above a work supporting table 8 vertically slidable within a bracket extending from thebase of the head. The table8 is normally held in raised position by means of a toggle mechanism 10 through which it is mounted upon knife blocks ried by the lower ends of independent slides ported upon a pair eccentric 5O 6).

This table operating mechanism is similar to the same mechanism illustrated in the Meyer Patent 1911, and is also embodied in the prior Bertrand patented machines. The channel knife 12 and the shoulder knife 14 (Fig. 2). are

which are (ar- 16 and 18 respectively (Fig. 6) vertically movable within a swinging carrier 20 which oscillates in the line of feed. The

slides

16 and 18 are yielding ly urged toward the work table. 8 by springs 22 and 24 -respec-" tively. The carrier 20 is pivotally supof horizontal bearings 28 (Fig. 1) near the upper endof the carrier. The channel knife pressure gage 30 (Figs. 2 and 3) is supported the channel cut from the upper or flesh side of the sole. The edge knife pressure gage 32 (Figs. 1 and 6) is mounted independently. of the edge knife being carried at the" the line of feed, of said knives and gages 1s a presser foot 38 (Figs. 1 and 6) yield ingly carried on a slide 40 by means of a spring 42. This foot is moved verticallyto- .ward and from the sole by means of an eccentric 44 (Figs. 6 and 7) on one end of the drive shaft 46. The other end of the drive shaft 46 is provided with. a beltpulley 48 (Figs. land 2). Thecarrier 20 is oscillated by connections thereto from a second All of these parts may be and preferably scribed in said prior patents hereinbefore referred to, and they are operated intimed relation to feed the work in the following manner. lVith the oscillating carrier in its position shown in Fig. 6. that is at the end of its right-hand stroke. viewing said figure, =the presscr foot 38 is held in raised posi tion by its eccentric The carrier 20 is then moved by its eccentric 50 to the end of its left-hand stroke, as illustrated in Fig. 8.

The pressure gages 30 and 32, being continually in feeding'engagement with the sole i n moving from the position of Fig. 6 to; that of Fig. 3, drag the sole forward across the work table 8. The angular position of the eccentrics 44 and. fidrelatively'to each other is such that upon the completion of the lefthand stroke of the oscillating carrier 20 the presser foot 38 has been lowered into ongagement with the sole and by means of its roughened lower face holds the sole against movement -;while the carrier makes its righthandstroke. On this stroke of the carrier thepressure gages yield as they slide backward over the sole whileat the same time No. 984,772, February 21,

on the chain ,nel knife block and determines the depth of are the same as de the knives cut through the sole forming the channel and shoulder. This cycle is repeated at a rapid rate, the length of the feed stroke being comparatively short.

The edge gage 52 (Figs. 1, 2 and 5) is mounted upon an edge gage slide 54 provided with an upwardly projecting pin 55 which enters a bore in the lower end of the oscillating carrier 20. The edge gage is thus moved in the line of feed with the knives toward and from the presser foot 38. The slide 54 is mounted upon a transverse slide 56 which is operated by mecha nism similar to that described in the li leyer Patent No. 984,773. February 21, 1911, and also embodied in the prior Bertrand patented machines, to move it across the line of feed and vary the margin of the sole determined by the line of cut made by the channel knife. Certain improvements have been made in the edge gage operating mechanism which will be made clear hereinafter.

Of the new features ofthe machine that the surface of such stock is quite liable to rough up the flesh and form a bunch which when passing under the channel gage will lift it against its spring pressure and, because the channel knife rises with it, cause a thin channel to be out. Sometimes also on stock of fleshy character the flesh will become so loose as to form a movable layer between the pressure gages and the firm portion of the stock which will at times wholly nullify the feeding action of the gages. For these reasons, and those already explained, it is highly desirable that the pressure gages be held rigidly in firm engagement with the sole stock during the feeding strokes of the oscillating carrier 20. It has been found convenient at the time desired to lock the gage supporting slides against vertical movement within the carrier 20 and, since the nullification of the force of the pressure on the springs which impart vertical movement to the slides is an intermittent operation, the locking operation must be accomplished in timed re lation to the vertical movement-s of the presser foot 38. It has been found convenient to use the vertical movement of the presser foot as an actuator for the slide locking device.

The pressure gage locking mechanism is best illustrated in 2, 3, 4:, 6 and 7, and referring first to Figs. 6 and 7, it will be seen that the edge knife pressure gage slide 34 and the left-hand wall .of the oscillating carrier are bored to permit the insertion of a sleeve 58 held from rotary movement by means of a squared collar 60 which fits transversely a longitudinal 'recess formed in the slide 3%. This recess is elongated somewhat longitudinally, as shown in Fig. 6, to permit such vertical play of the slide as may be required. The sleeve 58 is provided with an internal screw thread of steep pitch and threaded therein is a screw 62, one end of which bears upon a hardened wear piece 64 fitted into the face of the channel knife and channel pressure gage slide 16. To the outer end of the screw 62 there is rigidly secured a crank arm 66 (Figs. 2 and 7). This crank arm is forked and has pivoted therein a forked knuckle 68 to which is pivoted the lower end of a vertical lock actuating rod 70, which, at about its center, has secured thereto a collar 72. Above the collar 72 is coiled spring 74 surrounding the rod, borne upon by a slidable sleeve 76 having a pin 78 extending at right angles thereto. The pin 78 is journaled in a bearing 80 (Fig. 2) formed in the left-hand end, 81 of an operating lever which, as best shown in Fig. 4:, is provided with a pair of hubs 82 surrounding the bearings 28 of the oscillating carrier 20. These hubs are joined by a tie-plate 84 and the lever has a right-hand extension 86 to which is pivotally connected the upper end of a vertical link 88, the

'lower end of which is pivotally connected to the slide 40 which operates the presser foot 38. An adjustable collar 90 is threaded on the upper end of the lock actuating rod 70.

It will be observed that when the presser foot 38 is lifted, the lever 81-86 is rocked about the fulcrum of the oscillating carrier in a direction to bear downwardly upon the collar 72 which, being fast to the rod 70, moves this rod downward and rotates the crank 66 in a clockwise direction. The screw 62 being provided with a right-hand thread is thus moved forwardly within the sleeve 58 exerting pressure upon the wear piece 64- and through this pressure binding the

slides

16 and 18 against each other and against the right-hand wall of the oscillating carrier 20. The fit of the slides within the carrier is close and therefore they can move laterally but slightly under the pressure of the screw 62. Almost im mediately, therefore, after the screw has started its rotation it can advance no further and its pressure is then transmitted in an opposite direction through the sliding sleeve 58 to the edge knife pressure gage slide 34 which is pressed by the squared collar 60 against the left-hand wall of its slideway on the oscillating carrier. In this manner a slight rotation in a clockwise direction of the crank 66 willbind all three of' the slides within theloscillating carrier against any: movement "in a vertical direction and" this locking of the slideswilleiidure until will' cause' the link'88 to draw the end 86 of the lever 8l';86'downward. The spring 74 is interposed betweenthedever 81-:86

ating lever by theupward movement of the slide 40; Fig. 6-1, shows the slideslocked, as just' described, a and" the pressure gages about to start their Ifeeding'stroke. 3

shows the parts in the reverse position. In Fig.1 3 the presser foot 38 is in contact with the Work ,andzholds it from. movement, the oscillating carrier 20 is about to move to the right in order to make the'channel and edge cuts and the'lever 818 6 has been tilted about its pivot 28 by the downward movement of the'presser foot slide'ed until the sliding sleeve 7 6 has engaged -the fixed collar 90 and turned the crank 66 in a counterclockwise direction suffi'cientlyfto remove all the pressures which hadfbeen exerted by the sleeve 58 and screw 62 upon; the previous rotation of theparm 66 in a clockwise direction. It Will'beobservedthatthe eccenf tries-44 Iand fSO are sous'etfangularly rel-- atively to each other that thexspring pressure upon the: feeding pressure 7 gages 1s wholly nullified duringeachfifeed stroke, that ;iS, during tl1e time when the'sole mustl'be turned about. the channelknife as a center in guiding the various 'curves' of the sole past the edge gage'52.

' illustrated machine is provided with the usual 'means for "lowering thetwork sup- 40 port and lifting the knives when it becomes necessary to remove and insert .worl'rl This mechanism is 'best illustrated in Figs. 2" and 4t and is actuated by a 'foot .treadle attached to a treadle rod which is depressed in order to lower the work support and lift the knives.

The knives are lifted by the movement to the'right'of an arm 94 (Fig.2) c.arried by 'one" of the links of the l toggle 10 which, through the links'96 and 98 and' bel 104E, downwardly" about said shaftas a' pair of vertical set screws (Fig e)" which bear upon tail pieces oflevers' 106, and'108? also loosely pivoted upon the' shaft 104:, the V forwardendsof which project beneath pins extending laterally from thejchannel knife: slide 16' and shoulderknife s1ide*'18 respec-' knife slides against theforee ofltheir springs 22 and 24:. Obviously, if the rtreadleisfda pressed; at a time. in the cycle or, operations when the lknife slide lock is in operation, difficulty will be experienced and possible breakageof the machine. Meanslisprd vided, therefore, for insuring a release of the p I locking mechanism at the time it is desired and the 'collar 72 to take .up and cushion theexcessive throw imparted to the oper-' to exert pressure upontheslides to lift them. To this endthe lever' 102' is providedwith an eXtensioncarry-ing a -third 'set screw 110 (Figi2) which bears upon the tail piece of a third lever 112loosely pivoted on the shaft 104. "This lever'has aJforked end, through which'fthe' lock actuating rod 76, passesflocated below the collar 7201i said rod. Now, when the work support" lowering treadle is depressed the lever 112 is moved upward by the downward movement of the ar1n102 concurrently with the levers 106108 which movement if the lock is in operation,causes the arm. 66 to be rotated in'a counter-clock wise direction the rod 70"being moved loosely upward through the sleeve 7 6. Thus, during the time when i the 1 knives and work support are retracted from each other, the locking device is maintained in its released position. Preferably the set screw 110 is so adjusted relative to the other set screws in the arm 102 as to move the lever 112 just prior'to' the movement of the levers 106-108, thus insuring that the locking device is released prior to any lifting pressure being exerted upon the knife slides. In its normal position, the forked end of the lever 112 is lo cated a slightydistance below the sleeve72. This provides space' for'the required downward movement of thesleeve 72 whenthe lock is operated from the presser foot slide 40, without imparting movement to the lever 112. V i

As has heretofore been explained, in making turn soles for sewed heel-seat work, the shoulder is omittedaround the'heel seat, and the marginoutside the channel cnt, is increased; lTo attain this result the shoulder knife is lifted from. its operating p'esition and the edge, gage is retracted. so ithat, the sole being kept in contact with it, the channelknife will out further from the edge. Those skilled in the art will recognize the necessity of lifting the shoulder knifebe'fore the edge gage is retracted when channeling on to the heel-seat from the shank, and of advancing the edgegage beforer'the shoulder knife is lowered into cutting position when channeling on to the shank from the heelseat alt the other side ofthe sole. If this timing ofthe two parts is not preserved the sole cannot be pushed back againstthe gage quickly enough to immediately "obtain a wider margin when channeling onrto the heel-seat.'- When channeling on to the shank again, if thelknife should be dropped first, before the sole is again positioneddor "a narrow margin, the between substance would be cut through.

The mechanism through which the proper timing of parts is secured is best illustrated in Figs. 1, 2, 4, 5, 8 and 9. In this mechanism the shoulder knife is, as usual, lifted by lowering a rod 114 (Fig. 1) which is con nected to the end of a rearwardly projecting arm 116 secured to the transverse shaft 104. A stop 118 limits the downward movement of the arm. and a spring 120 acts to return the arm to its normal position when pressure on the rod 114 is relieved. A forwardly projecting arm 122 (Figs. 2 and 4) is secured to the other end of the shaft 104 and this arm bears beneath a pin 124 projecting laterally from the shoulder knife slide lifting lever 108. Thus, when the rod 114 is lowered, the shoulder knife only is lifted from operating position leaving the channel knife unafiected since no movement is imparted by the mechanism just described to the channel knife slide lifting lever 106. This mechanism is all as illustrated in said prior Patent N 0. 1,023,801.

In'order that the locking device may be re leased so as to permit the shoulder knife to be lifted when desired, the lever 122 is provided with a laterally extending lug 126 (Fig. 4) located beneath a set screw 128 (Figs. 2 and 3) which is threaded through a lateral lug formed on the lock releasing lever 112. Thus the upward movement of the lever 122 to lift the shoulder knife slide will at the same time lift the lever 112 and release the locking device so as to free said slide if the mechanism for lifting the slide should be operated at a time in the cycle of operations when the locking device'is effective.

Heretofore, in applicants patented inachines a shoulder knife lifting treadle was connected directly to the rod 114 and the edge gage was operated only by the handle 130, the two mechanisms being entirely divorced from each other. In the present machine, however, as shown best in Figs. 1, 5 and 10, certain mechanical connections are interposed between the knife lifting rod 114 and the edge gage adjusting mechanism which provide for an operation. of these two parts by a single means. These mechanical connections are so designed as to insure a concurrent lifting of the knife and withdrawal of the edge gage; and a concurrent lowering of the knife and advance of the edge gage, but each gage movement being so timed as to its partner of the couple as to insure a proper positioning of the work for the operation of the knife without crippling the sole.

The edge gage adjusting mechanism is mounted in a bracket 132 (Figs. 1 and 5) extending forwardly from the work support and comprises a rotary head 134 (Fig. 10)

secured to a vertical shaft 136 which extends downwardly through a sleeve 138 held fast, within a vertical bearing in the bracket 132, by means of a .draw bolt 140. The bracket is provided with a. segmental recess 142 (see dotted lines Fig. 5) into which there depends stop member 144 secured to the head 134. A wrist pin 135 on the head 134 is engaged by the forked end of a centrally pivoted lever 146 (Fig. 5) the other end of which is provided with a toothed segment engaging a rack on the edge gage slide 56. With this construction when the head 134 is rotated in a clockwise direction, the lever 146 is rotated in a direction to advance the gage and position it for a narrow margin on the sole. hen the head 134 is rotated in a counterclockwise direction the gage is, withdrawn across the line of feed for a widemargin on the sole. Ordinarily, the ends of the segmental recess 142 form stops which determine the amount of movement given the gage. This construction of the edge gage adjusting mechanism is like that shown in the Meyer Patent No. 984,772, February 21, 1911, and also embodied in, the prior Bertrand patented machines.

In the accompanying drawings, Figs. 1 and 4 show the edge gage in its advanced position and the shoulder knife in its operating position, and Figs. 5 and 8 show the edge gage in its retracted position at which time the shoulder knife is lifted.

The bracket 148, which supports the mechanism connecting the edge gage adjusting mechanism and the shoulder knife lifting mechanism, is shaped so as to fit the edge of the circular flange on the base of the U-frame 6, its form being well illustrated in Figs. 1 and 5. The bracket 148 is secured to the flange by a vertical bolt 150 and is adjusted about this bolt as a pivot by a set screw 153 which bears on the edge of the flange. The rotary head 134 of the edge gage adjusting mechanismis provided with a lateral ear 154 (Figs. 1 and 5) to which is pivotally connected a link 156 in turn pivotally connected to the left-hand end of an edge gage operating rod 158 (Figs. 1 and 8). The other end of this rod extends loosely through an opening in a block 160 which is provided with a lateral extending pin 162 received in a hub on the upper end of a vertically extending lever 164 pivoted loosely upon a horizontal rockshaft 166 journaled by its ends in the bracket 148 (see Fig. 9). Integral with the lever 164 and extending downwardly below the shaft 166 is a lock-block 168. Pinned to the rock-shaft 166 is an arm 170, the free end of which is connected by a vertical link 172 to the free end of a second arm 174 secured at its otherend to a short shaft 176 which is journaled in a depending portion 178 of the bracket 148. From the lever 174 .182 connected at its *7 8) is connected by one end to of the drawbolt 140, and

a treadle rod 180 depends and is connected to an operating treadle (not shown) at the base of the column. The weight of the treadle parts is sustained by a coiled spring lower end to the lever 174 and at its upper end to a pin projecting from the bracket 148. This spring normally holds the arm 174 in substantially horizontal position, as shown in Fig- 1, against a stop screw 183 threaded into a lug projecting from. the portion 1'? of the bracket 148. The arm 170 has a transverse lug 184 (Figs. 5 and 4) projecting from its rear side which carries an adjustable lockblock actuating screw 186 adapted to engage the rear side of. the lock-block 168. The. screw 186 is so adjusted that its end, when the parts are in the position shown in Figs. 1 and 4, is a short distance from the lock-block, thus providing for short idle stroke before the block is engaged. The rock-shaft 166 has also secured thereto a depending arm 187 (see Fig. 9). the lower end of which. is formed as a cam 188 (Figs.

.2 and 8) which is adapted to ride over and depress a roll 190 rotatably mounted upon a pin projectingfrom the rear face of a slide 192 (Figs. 1, 8 and 9) constrained to move vertically in upper and lower guideways 1.93 and 194 formed. on a vertical member 195 onjthe bracket 148. The slide. 192 is provided ,with a vertical slot 196 through which the rock-shaft 166passes, permitting movement of the slide past the shaft. The

,lower end. ofthe. knife lifting rod 114 is hooked into the upper end of the slide 192 (see Figs. 1 and 9) so as to be actuated thereby. The, slide 192 is located between the arm 187 and the1lock block168 and on its side toward the lock-block it is provided with a vertical shoulder 198 (Figs. 1 and 8) against which the lock block bears when the parts are in the position shownin Figs. 1 and 4. The shoulder 198 is provided with a horizontal shelf 200 at itsupper end and beside the shoulder, opposite. the lock-block, is a stop screw 202 threaded pendingfrom the bracket 148.

The spring 120 normally maintainsgthe slide 192 andthe

arms

170 and 174 in their raised positions and consequently the shaft 166 rocked to a position with the cam 188 at one side of the roll 190 as shown in Figs. 1 and 4. A coiled spring,204 (Figs. .1 and a sleeve 206 secured-to the rod 158 andby its other: end to a sleevev 208 secured to the projecting end thus tends continually to move the rod 158 to the left, in- Fig.1, and, maintain thestop 144 (Fig. 10) against the left-hand shoulder of the segmentaljrecess 142 in the rotary head 134 of the edge gage operating mechanism. Lock nuts210 threaded on. the freeend of the rod 158 bear upon the pivotal block160 and into a lug deact to move the lever 164 to the-left with the rod 158. This position of the lever 164 normally maintains the lock-block 168'at the right, in Fig. 1, of the shoulder 198 on the slide 192.

In operating the mechanismjust described when channeling on to the heel-seat from the shank, on depressing the .treadle rod 180 the result is to first lower the slide 192iand lift the shoulder knife from its operating position. This lowering of the slide is effected by the rotation of the rock-shaft 166 and consequent movement of the cam 188 over the roll 190 which forces the. slide downward. During this downward movement of the slide, there is no movement of the lever 164 and consequently no actuation of the edge gage adjusting mechanism. By thewtime the downward movement of the slide has caused the shelf 200 to come into the plane of the lower end of the. lock-block 168 the screw 186 has been advanced far enough, through the movement of the lever 170 to engage the lock-block and force it-to the left, in Fig. 1, into a position over the shelf 200 as shown in Fig. 8.

164 to the right and consequently, by .pressure against the lock nuts 210, moves therod 158 to the right extending the spring 204 and rotatingthe head 134 111:2. counter-- clockwise direction. This movement continues until the lock-block engages the stop screw 202. The shoulder knife is now out of operating position andthe edge gagevis:

withdrawn, to the position requirectforthe wide margin around the hee1seat, the parts being, in theposition shown in Figs. 5 and 8. l/Vhe-n theitreadle is releasedthe spring 204 immediately begins to contract which moves. the lever 164, to the left, in Fig. 8, and carriesthe lock-block 168 to the right'to remove it from the shelf 2O0. Thisturns the rotary head 134 in a clockwisedirection and.

advances the edge gage acrossthe line. of

feed to produce the narrow margin required final forward position. It will be observed that while the lock-block is moving to the right to free itself from the shelf 200, the cam 188 is also beingmoved to the right and withdrawn from abovethe roll 190 sothat when actuation of the slide 192 commences its completion is quickly consuminated, there being no pa'rts in position A movement of the lock-block to the left; moves the lever to prevent it from returning immediately to its raised position thus instantly permitting the shoulder knife slide spring 24 to act.

While ordinarily, in channeling turn soles, a single margin is used throughout the shank of the forepart and the margin is changed only for the heel-seat, in the better class of shoemaking manufacturers deem it desirable to increase the margin slightly around the toe to make room for the increased thickness of the upper materials at this point caused by the insertion of the stiffening materials which form the box toe. In order to permit the margin to be change around the toe without removing the shoulder knife from its operating position, certain improvements are made in the edge gage adjusting mechanism which are shown best in Figs. 10 and 11. The vertical shaft 136 to which the rotary head 134 is secured has fastened to its lower end, by a draw bolt 212 (Fig. 11), a flange 214. The operating lever 130 is centrally pivoted on this flange and its end 216 opposite the handle is positioned so as to bear upon the lower end of a spring pressed pin 218 seated in a bore in the under side of the flange 214, and adapted to be projected by a movement of the lever through an opening in the upper surface of the flange and into a Segmental recess 220 in the flanged lower end of the fixed sleeve 138. By depressing the handle 130 the pin 218 is projected into the recess 220 and the shaft 136 can then be rotated within the limits determined by the shoulders which form the ends of the recess. A rotation of the shaft 136 in this manner permits a withdrawal of the edge gage across the line of feed a sulficient amount to give the desired increased margin at the toe. The movement thus imparted to the head 134 actuates the rod 158 but due to the type of connection used between this rod and the upper end of the lever 164, the rod merely slides idly through the block 160 and imparts no movement to the lever.

When operating upon pointed or razor toe work, it is desirable to modify the shape of the presser foot 38 and of the channel knife 12. The modified presser foot is shown in Figs. 12 to 14 and the modified channel knife in Figs. 15 to 19. The sides of pointed toed soles slope so sharply toward each other at the toe that when the turn at the toe is made, as shown in Figs. 12

and 13, a presser foot of the form illustrated in Fig. 7, would entirely lose its bearing on the sole except for the small right angular leg 222. It so happens that the condition most frequently met with in making the turn is that illustrated in Fig. 13 when the sole is so positioned that the forward edge of the resser foot bears substantially, upon the e go of the sole. It being remembered that the machine is run at high speed, the result is that the rapidly reciprocating presser foot engages the edge of the sole :1 number of times before the operative can get it completely turned. Consequently, the margin is chewed up by the teeth on the presser foot and in particular the small leg 222 is apt to dig a hole in the margin. It is, therefore, desirable that the sole engaging portion of the presser foot be so shaped as to enable it to obtain a firm bearing upon the sole no matter what the shape of the sole be or its position relative to the foot. To obtain this advantage, the foot 38 is provided with a supplemental foot or leg 224extending at right angles to the main portion of the foot and of such length as to overlap the sole a considerable distance and provide a firm bearing in all positions which the sole assumes when turning at the toe. Its action is illustrated by Figs. 12 and 13 which show the two positions of the sole when turning at the toe which give the most trouble with the old type of foot employed for round toed soles. Since the foot or leg 224 extends so far forward as to lie beneath the oblique channel knife 12 the upper side of its inner surface must be beveledso that it can be located close to the point of operation of In order not to injure the channel flap the underside of the free end of the foot 224 is obliquely beveled asto 225 (Fig. 14).

This construction enables the foot to clear the channel flap when the'sole is in the position shown in Fig. 13.

Referring now to Figs. 15 to 19, each show the modified form of the channel knife. 5

In operating upon pointed toe insoles the cut channel flap is at one time, during the turning of the sole at the toe, brought into parallelism with the shank ofthe channel knife. This condition is illustrated by Fig.

15. If a channel knife having a straight shank, such as is shown in Fig. 13, is used for pointed toe work, when during the turn the point just described is reached, the flap is forced upwardly and outwardly by pressure of the back of the knife shank and the force of the pressure is suflicient either to tear the flap or, if the stock be stiff and hard, to break the knife. Those skilled in the art will, therefore, recognize that it is highly desirable to employ a channel knife so shaped and constructed that room is provided for the channel flap to lie in the channel in all positions of the sole relative to the knife. To gain this end, the present inventor has so constructed the channel knife that its shank, which has heretofore extended in the general direction of the cutting edge 226 of the blade, is provided witha crook 228 therein bowed toward the side of the Cllftlllg edge, thus forming a recess 230 in the back of its shank adjacent the heel 232 of the cutting blade. The portion 23a of the shank beyond the bow 228 is straight so that the knife may ,be clamped in the customary knife block. The recess 230, at 235 (see Fig. 19) where it joins the straight portion of the shank, is beveled so as to provide a smooth opening for the edge of the flap to pass through. 1n using this knife there is no danger of the channel flap beingv broken even on soles known as razor toes. The knife is particularly adapted for turn work where: the weight of the sole produces a stiff channel lit hasbeen found that ifthe edgeg age 52 is positioned, as is usual, in advance of the cutting point of the knives, as shown in Figs; 12 and some diflicultyis experienced in turning the sole at thetoe because the pivot about which the sole is turned is the end of the channel knife and the bear ingto which the edge of the sole must be held is not directly opposite the pivot point. It is, therefore, proposed to changethe location of the edge: gage to a position ce'ntrally opposite the channel knife which will be the. preferred location ofthe gagefor fine work; This modification is shownin Figs; 20 and 21. The centralized edge gage 236'is supported in a vertical dovetail way in a head 238 on the edge gage support 240 which is adjustably bolted, as usual, to the" longitudinalxslide 54. This position brings the edge gage beneath the shoulder knife. Its upper end is: therefore beveled as shown inf Fig. 20, to fit snugly againsttheund'er side of the knife. In turn Work the table isadjusted vertically relative't'o the knives -fordifferent weights ofsoles and since" the e'dgegage support-240 is mounted upon the work support bracket 132 it will move-yer tical-lyawith the work support during such adjustments. The work support adjusting mechanism, indicated (Figs. 1 and 3) is similar in principle to that disclosed in the Prenzel reissue Patent No. 13,375, February 27, .1912. To avoid a con tinual readjustment of the edge gage 236 so asv'to alwaysmaintain asutlicient bearing face above the plane of the work support,

whatever the height of the work support may be relativetb the knives, the edge gage 236- is made to slide vertically within the dovetail way in thehead; 238'. Thegage is constantly urged upward bymea'ns of a coiled spr1ng2l4- seated 1n a" recess back of the gage 'having lts'lower end secu'red to pin'projectingfrom ther'ear' side of the gage shank and its upper end s'ecuredto the gageblock. With this construction, whatever vertical positionthe work support may assume; the gage is always'held'incontact with generally! by 24-2 the underside of the shoulder knife and consequently always affords a bearing for the entire sole edge.

When applying this centralized edge gage to the machine of the type shown in the accompanying drawings, since the shoulder knife travels in" the lineof feed in the arc of a circle and the edge gagetravels in a right line path, it is necessary to back off the top of the gageat its forward edge so as to permit the shoulder knife to swing across it without injury to the cutting edge of the knife blade. This, therefore, will be a feature of the centralized gage construction when applied to a channelingmachine of the type illustrated, whether it be for turn work orwelt work.

Nothing'herein contained is to be interpreted as limiting the invention in the scope of its application to use in connection with the particular machine, of the particular poses of illustration and explanation. While the particulars of construction herein set forth are well suited to one mechanical form of theinvention, it is not limited'tothese details of construction nor to the conjoint use of all its features, nor is it to be understood that these particulars are essential since they may be variously modified within the slfill of the artisanwithout departing from the true scope of the actual invention, characterizing features of'which are set forth in the following claims by the intentional use of generic terms and expressions inclusive of various modifications.

l/Vhat is claimed as new, is:-

1. A sole fitting machine having, in combination, a sole fee-ding meansincluding a pressure gage normally urged yieldingly toward the sole, and having an intermittent feeding period during the operation of the machine, and means for locking the gageeach successive movement of the carrier in i one direction.

3. Asole fittlng machine having, in combination, a sole feeding member held in engagement' with the sole by spring pressure,

means for reciprocating saidmember in the line of feed,,and means'for nullifying the force'of said s Jrin ressure on each alter- .nate stroke of: said member without chang-' 'ing the springpressed position of said memher.

4. Asole'fitting machine having; incombination, a pressuregage, a spring for hold ing said gage continually in engagement with the sole, and means acting intermittently to nullify the action of said spring and periodically lock the gage against any vertical movement.

5. A sole fitting machine having, in combination, a plurality of pressure gages each independently spring-pressed toward the sole, and a single means acting intermittently to nullify the force of the pressure from all of said springs and periodically lock the gages against any vertical movement.

6. In a channeling machine of the type in which a knife and its pressure gage are reciprocated in the line of feed, said gage being spring-pressed and acting to feed the sole on one stroke, the knife performing its function on the other stroke, and a presser foot movable to intermittently engage the sole and hold it from movement during the cutting operation; the combination with said gage of means for changing the yielding nature of the gage to a fixed or rigid nature on its feeding strokes.

7. In a turn channeling machine of the type in which the channel knife and its pressure gage are mounted on a spring-pressed slide and the edge knife and its gage are mounted on independent spring-pressed slides; the combination with said slides of means for periodically locking them against any vertical movement.

8. In a channeling machine of the type in which the channel and edge knife ire mounted on spring-pressed slides vertically movable in a slideway, at least one of said slides carrying a pressure gage, bearing on the sole; the combination with said slides of means operative to bind them within the slideway to, at times, change their yielding nature to a fixed or rigid nature.

9. In a channeling machine of the type in which the channel and edge knife are mounted on contacting spring-pressed slides vertically movable in a single slideway, at least one of said slides carrying a pressure gage, bearing on the sole; the combination with said slides of a screw bearing on one of them, and means for rotating said screw whereby to bind said slides, at. times, in said slideway and lock them against any vertical movement.

10. In a turn channeling machine of the type in which the channel and edge knives are mounted on spring-pressed slides in a single slideway, and the edge knife presser gage is mounted on a third spring-pressed slide in another slid-eway; the combination with said slides of means operative to lock them against any vertical movement in their respective 'slideways.

11. In a turn channeling machine of the type in which the channel and edge knives are mounted on spring-pressed slides in a single slideway, and the edge knife presser gage is mounted on a third spring-pressed slide in another slideway; the combination with said slides of a slide locking device located between said slideways constructed and arranged to exert pressure on the slides in opposite directions to bind them, at times, in their respective slideways, and means for operating said device.

12. In a channeling machine of the type in which the channel and edge knife are mounted on spring-pressed slides vertically movable in a slideway, at least one of said slides carrying a pressure gage bearing on the sole; the combination with said slides of means periodically operated bythe machine to bind them within the slideway and change their yielding nature to a rigid nature.

13. In a turn channeling machine of the type in which the channel and edge knives are mounted on spring-pressed slides in a single slideway, and the edge knife presser gage is mounted on a third spring-pressed slide in another slideway; the combination with said slides of means periodically operated by the machine to lock them within their respective slideways against any vertical movement.

14. In a channeling machine of the type in which a knife andits pressure gage are reciprocated in the line of, feed, said gage being spring-pressed and acting to feed the sole on one stroke, the knife performing its function on the other stroke, and a presser foot movable to intermediately engage the sole and hold it from movement during the cutting operation; the combination with said gage of means operated periodically by the movement of said presser foot to lock said gage against any vertical movement on its feeding strokes.

15. A channeling machine having, in combination, a step-by-step sole feeding member having a smooth sole engaging end held yieldingly in engagement with the sole, and means cooperating with said member to hold the sole from movement across the line of feed beneath the feeding member during the feeding steps.

16. A channeling machine having, in combination, an edge gage, a sole feeding member, an expansion spring for holding said member continuously in engagement with the sole, and means to prevent compression of said spring when the sole is crowded against the edge gage in changing the direction of the feed of the sole, whereby buckling of the sole is overcome.

17. A sole fitting machine having, in combination, a reciprocatory sole fe-edingmemher, a spring for holding said member continuously in engagement with the sole, and means acting automatically on each feed stroke of said member to lock it against any vertical movement.

18. A channeling machine having, in combination', a. sole fitting; knife: and. cooperatingpresser gage, J a spring, for l'iolding; said gage continuously in. engagement. with. the sole, means for. reciprocating said: gage in the line of. feed, a presser foot, means for raising said foot from tfhe sole; on; the for- Ward stroke of said. gage and for lowering said. foot to the soleon the backward: stroke of said gage, whereby the: sole is advanced step-by-step, means. for locking. said gage against any vertical. movement during. its feeding stroke, and a train of mechanism connecting thewpresser toot and the locking means operative to." actuate. the locking means on each withdrawal of the foot from the sole. 1

19, A. turn channeling:machinehaving, in combination, a channel knife, an edgev gage, means foradjusting: the edge gage-relatively to said channel knife, avertlcally movable shoulder knife,. and mechanism connecting said gage. adjusting. meansznnd shoulder lIznifeconst-ructed and arranged to, insure a completion of one movement before the completion of the other, w

Aeturng channelingmachine having, in combination, a channel: knife, an edgeugage, meansto movesa-id gage toward the knife to decrease the margin on: the sole, a shoulder knife, means to: lower said knife relatively to the sole, and a single controlling mechanism for both of said-means. including? a locking device. operating: to delay-1 the: inove. merit of the knife untilthe completion of t-. the. movement-Loflth'e gage:

21. A channel-ing maohine-having,.in com; bination, an: edge g age, a shoulder knife,- means. under control of the.- operaton for withdrawing the gage and lifting: the knife, means; under controlof: the machine for advancing the gage and; lowening the knife, and mechanism= common to. said two means for insuring a.completion; of one movementbefore the completion of the othert.

22: A channelingmachine having, in combination, a channel knife, an-edge gag6:1i10" able horizontally toward: and fromsaid cl1annel-knife-,a shoulder knife movable ver tically toward and flOIIiI said channel knife,

and mechanism for moving; said parts'com currently in like directions said mechanism:

including means fon insuri-i'ig that the gage; movement 18 completed first when sald parts are moved toward the channel knife and that the knife-1 movement. is completed first.

when said partsare moved away from thechannel kmfe... i a i I .23. In a .turn channehng; machmeof the type in which the edgeegage isadjustable-and1 the shoulder knife; is removable from icuttinig position, the combinationiwith": the means;

for actuating-said. knife-of mechanism for locking; it m2 raised; pos tion. and means: for

delaying the-release-offthetlockfora time after the release of the actuating means to return the knife 24dwIII12L turn channel-ingmachine of the type.- in. which the edge gage is adjustable andythe shoulderxknife is removable from cutting position and both of said parts are under the control. of a single actuating mechanism thecombination with said mech anism of-a locking device, forholding the knife i'n its raised position, operated by the Withdrawing movement of the gage.

25. In aturn channeling machine of the type; in which the edge gageis adjustable and the shoulder knife is removable from cutting position, said adjustment of the edge gage v including a movement both toward and from the channel knife and both of said parts being under control of a single actuating:mechanism,.the combination with said mechanismof a locking device for holding the shoulder knife in its raised position, said device being actuated into its locking position bythe. movement ofsaid gage from the channel knife and released by the movement of said gage toward the channel knife.

26. A channeling machine having, in combination, a channelknife, an edge gage adjustable to differentdistances toward and from. the channel knife, and a separate actuator under control ofv the operator for each. degree of adjustment.

27. A channeling machine having, in combination, a channel knife, an edge gage adjustablez to different distances toward and from the channel knife, and a plurality of operating means under control of the operator for effecting such adjustments.

28. A channeling machine having, in com bination, a channelknife, an edge gage adjustable to different distances toward and from the. channel knife, and edge knife m ovable to'wardland from operating position, a singlemeans for. concurrently adjusting the edge gage and moving the edge knife,.and means for adjusting the edge gage independently of said edge knife.

29. A channeling machine having, in combination,.a channelknife, an edge gage adjustable todifferent distances toward. and from the channel knife, an actuator under control of the operator for effecting an adjustment to one degree, a second actuator normally disengagedbut engageable at the will of the'opera-tor: for effecting. an adjustment to a-zdifierentl degree.

30. Inla channeling machineof the type inwhich the edge: gage is adjustable toward and fromvthechannel knifeto vary the margin on the sole and mechanism' under controli of: the operator} is provided for effectingsuch" adjustment, the combination with said mechanismr; of two actuating devices each operable at-Ithe willlof the operator in dependently ofthe; other.

31.In a channeling machine, a channel knife reciprocablein the line of feed, an edge knife, and an edge gage located beneath the edge knife and centrally opposite the channel knife in all positions assumed by that knife.

32. In a channeling machine, a work support, an edge knife, means to adjust the support relatively to the knife, an edge gage beneath said knife mounted on the work support, and means fonmaintainingcontact between the top of the gage and the under side of the knife in all positions of the work support.

33. In a channeling machine, an edge knife and an edge gage beneath said knife both of which are reciprocable in the line of feed and means for continually urging said gage yieldingly upward toward said'knife.

34. In a channeling machine, an edge gage block having a vertical slideway, an edge gage in said-slideway, a spring connected to said block and gage to continuously urge said gage upward, and an edge knife above the-gagfef In a channeling machine'of the type in which the edge and channel knives and edge gage reciprocate in the line of feed, an edge gage holder beneath the edge knife, and means for yieldingly holding the gage in contact with the under side of the edge knife. 4 1? In a channeling machine of the type in which the edge and channel knives are blades with straight cutting edges on substantially the same line transversely of the sole, an edge gage so located that its center is also on said line. 7

37. In a channelingmachine of the type in which the channel knife is mountedon a slide in a reciprocating carrier, an edge gage connected to be reciprocated also by said carrier and located cent ally opposite said channel knife. a

38. A channel knife'for sole'channeling machines having a cutting blade with a longitudinal cutting edge, and a shank extending in the general direction of said cutting edge having a crook therein bowed toward the side of said cutting edge.

39. A channel knife for sole channeling machines having a recess in the back of its shank adjacent the heel of the cutting blade.

40.1%. presser foot for sole channeling machines having a foot to engage the soletransversely and a foot-to engage the sole longitudinally, said last named foot being beveled on the upper side of its inner sur face. a p

41. A presser foot for sole'channeling machines having a right angular sole engaging surface one of the ends of which is beveled on its under side to avoid injuring the previously-cut channel flap in rounding a pointed toe.

42. In a channeling machine of the type in which the channel knife extends at an acute angle to thesole, a presser foot having a main bearing portion in advance of the knife and a supplemental portion extending beneath said knife.

43. In a channeling machine of the type in which the knives and pressure gages are mounted in a reciprocating carrier and a presser foot intermittently engages the sole to hold it from movement while the knives perform their function, such a presser foot having an extension which reaches a forwardly in the line of feed to a position beyond said knives.

44. In a channelingmachine of the type in which the sole is fed by pressure gages mounted in a reciprocating carrier and knives also in said carrier out the -sole on one stroke thereof, and a vertically movable presser foot intermittently engages the sole in timed relation to the reciprocations of said carrier to holdthe-sole from movement while being cut, such a presser foot having a main sole engaging surface extending across the line of feed and a supplemental leg projected in the line of feed of such proportions as to providea firm bearing upon the sole when the sole is swung fro-m beneath the main footin channeling at the toe end. I

45. In a channeling machine of the type in which the channel and edge knife are mounted on spring-pressed slides vertically movable in a slideway, at least one of said slides carrying a pressure gage, bearing on the sole; the combination with said slides of a slide locking device operableintermitte-ntly to lock them from movement within the slideway, mechanism under control of the operator for raising said slides from the sole and means connected with said mechanism for releasing the locking device if necessary.

46. In a channeling machine of the type in which a knife and its pressure gage are reciprocated in the line of feed, said gage being spring-pressed and acting to feed the sole on one stroke, the knife performing its function on the other stroke, and a presser foot movable to intermittently engage the sole and hold it from movement duringthe cutting operation; the combination with said gage of means operated periodically by the movement of said presser foot to lock said gage against any vertical movement on its feeding strokes, and mechanism to lift the knife from the sole, said mechanism including lock releasing means.

47. A channeling machine having, in combination, a sole fitting knife and cooperating presser gage,a spring for holding said gage continuously in engagement with the sole, means for reciprocating said gage in the line of feed, a presser foot, means for rais-