US1623225A - Chinery goeposation - Google Patents

Description

y mzszs Plll 5 1927 H. A. BALLARD CHANNELING MACHINE Original Filed Nov. 5. 1920 8 Sheets-Sheet l A ril 1927. L623,2525

P 5 H. A. BALLARD CHANNELING MACHINE origin-a1 Filed'Nov. 5. .192() e sheets-sheet' 2 April 5 1927.

Hv A. BALLARD CHANNELING MACHINE Original Filed Nov. 3. 1920 8 Sheets-She'et 3 fa/Trie Ja 22rd 1927. Y April 5 A H. A. BALLARD GHANNELING MACHINE a Sheets-sheet 5 Original Filed Nov. 3.r 1920 April 5 H. A. BALLARD C'HANNELING MACHINE l oriqfmalV Filed Nov. 3. 1920 sheets-smet e .k QQ..

April 5 1927.

H. A, BALLARD CHANNELING MACHINE Original Filed Nov. 3. 1920 8 Sheeaizs--She'el 7 A52/vengar arrz'@ alla To? fz-zzom 'ys `April 5 v1927. l,623,225

H. A. BALLARD GHANNELING MACHINE Original Filed Nov. 3. 1920 8 She'e'cs-She't- 8 Patented Apr. 5, 1927.

rezan tlikllf STATS FfiQ@ HARRE A. BALLARD, @E BOSTON, IvCEASSACHUSETTS. .A SSIGNGE TO UNITED SHOE MA- CHINERY CORPURATION, OIF FATERSON, NEW' JERSEY, A CGRQORATION 0F NEW JERSEY.

Application filed November 3, 1920, Serial No. 421,485. Renewed GctObcr 12', 1925.

.lhe pres-ent inif'ention relates to channeling machines and is herein illustrated as embodied in a power-operated machine for channeling insel-es for welt shoes. Many features of the invention, how-ever, are adapted for embociment in channeling ma-I chines for operating upon other kinds of work, for example, soles for turn shoes.

In the development of power-operated channeling machines, one of the most troublesome problems has been to provide eiiicient and reliable means for feeding and cutting the work which will operate satisfactorily at the desired high rate of speed, not only while operating on the straighter portions of the work but also while the more sharply curved portions of the sole margin are being operated upon. D

One object of the present invention is to improve the construction andmode of operation of channeling machines to secure such relation between the feed of the work and the operation of the channeling knife or knives as best to facilitate accuracy of cutting, particularly at the ball and toe of the sole, and to insure a maximum degree of efficiency in operation at all times.

lViththis objectin view, an important feature of the invention consists in the combination of cutting means, work-feeding means, and mechanism for operating` them, so organized that the cutting means is moved opposite to the direction of feed of the work to cut the Work while the work is being fed, and then additional feeding of the work is effected while thev cutting means is ineffective to cut the work. More specifically, and as embodied in the illustrated machine, this feature of the invention comprises a. knife reciprocating in the line of feed of the Work and-arranged to cut upon its backward stroke, and means for feeding the work against the knife while the knife is moving barkwardly to cut the work and for feeding the work with the knife during the for ward or non-cutting stroke of the latter. By feeding` the work against the knife while. the knife is moving in the opposite direction, the length of cut produced will be equal to the distance travelled by the knife plus the distance travelled by the work during the cutting operation. By imparting an additional feed movement to the work to advance it in saison with 'the knife "wi/lille the knife is being retracted idly into position to begin its next cutting stroke, the machine is enabled to make successive cuts the length of each of which is equal to the length of the knife stroke plus the length of the feed stroke. The above-described mode of feeding and cutting th-e work permits the work to be fed and cut at the desired high rate of speed by means of intermittently effective feeding devices in which the length of the feed stroke is materially less than in feed mechanisms of this type which have been heretofore employed in channeling machines. As the operator guides the sole to keep its curved edge continuously against the edge gage the sole turns intermittently, the turning movements occurring as the work is released by the feeding means at the termination of successive feed strokes. By making the feed strokes shorter, accuracy of cutting is facilitated inasmuch as the sole is then free to be turned at more frequent intervals.

In stating the above feature of the invention, only a .single channeling knife was taken into consideration, although in the illustra-ted machine a pair of knives are provided for cutting both an outer and an inner channel in a sol-e. Nevertheless in certain classes of work only one knife will be employed and the novel relation between the feeding and cutting operations herein described and claimed may perhaps be more clearly visualized by considering first the feeding of the work with relation to the operation of a single channeling knife.

Considering therefore either one of the channeling knives with which the illustrated machine is provided, the means shown in the drawings for advancing the work against that knife, While the knife is moving rearwardly toA cut the work, comprises a reciprocating feed dog, and the means for advancing the work with the knife upon the forward or non-cutting stroke of the latter comprises a second reciprocating feed dog, the feed strokes of which alternate with the feed strokes of the first feed dog. The feed dog` which advances the work during the cutting stroke of the knife may be regarded as the main feeding means vand the other feed dog, which imparts further feed moveA ment to the werk during the non-cutting strcke of the knife, may be regarded as an auxiliary feeding means. For convenience of descriy tion, when the operation of a single knlfe only is being considered, the feed dog Which functions While that knife is cutting Will be referred to as the .main feed ing means and the other feed dog Will be termed the auxiliary feeding means. .Preferably, as shown, both the auxiliary feeding means and the knife are mounted upon a single horizontally reciprocating slide; the main feeding means is mounted upon a second horizontally reciprocating slide; and the two slides are mounted side by side and are actuated simultaneously :in opposite directions and normally they are moved through strokes of substantially equal length. As a result the Work normally is fed by the main feeding means through a distance substantially equal to that travelled in a backward direction by the knife, and inasmuch as the auxiliary feeding means functions after each effective operation of the main feeding means to impart an additional feed movement to the work substantially equal to the length of the knife stroke, the Work advanced in unison with the knife during the idle or return stroke of the latter. Consequently when the knife is again ready to cut, the relation of its cutting edge to the work will be the same as at the end of the preceding cutting stroke or, in other Words, it will still be located at the forward extremity of the cut. rlhus the knife can again cut throughout the entire length of its stroke while the Work is being fed a like distance in the opposite direction by the main feeding means. By reason of the auX- iliary feed movements above described, the present' machine is enabled, at each succes sive cutting operation, to produce a cut which is approximately twice the length of the knife stroke and which is approximately twice as long as the distance travelled by the work while that cut is being made. The two feed dogs are serrated along their workengaging faces so that the feed of the work is positive and inasmuch as the feed dogs voperate in alternation, the feed of the Work is substantially continuous.

It will be observed from the foregoing that the illustrated machine is provided with a reciprocatingifeed device effective upon its forward stroke to advance the work, a reciprocating knife effective upon its backward stroke to cut the work and means for operating said feed device and knife simultaneY ouslyin opposite directions. This organization constitutes another feature of the invention.

Heretofore, for successful operation, channeling machines have generally required the employment of relatively 'thick and highgrade material and they have not ordinarily been .capable of use with insoles of such inexpensive, soft or thin material as economy soles which are made of thin and relatively soft, weak stock.

To the accomplishment of this object, the invention contemplates the construction and arrangement of its parts in such a manner as to insure the making of a cleaner cut in the work and to avoid tearing of the stock. More specifically, this feature of the invention consists in certain improvements in the construction and organization of the knifeactuating mechanism whereby a pair of knives are made to operate in alternation on t-he Work to cut outer and inner channels such as are required in insoles for welt shoes. By causing the knives to cut alternately instead of in unison, the cutting strain is divided and distributed evenly over the entire period of operation upon the Work so that the thrust against the Work is never `more than substantially half as great as that caused by similar knives operating simultaneously. Hence, there is less tendency to tear or weaken the stock and cleaner cuts will be produced..

When two channeling knives are em ployed, as in the illustrated embodiment of the invention, one knife is mounted upon each of the tWo horizontally reci rocating slides heleinbefore mentioned. `he tivo knives are thus mounted independently of each other and normally they are movable simultaneously through equal strokes in opposite directions. Each feed dog is movable in opposition to the direction of movement of one of the knives and in unison With the other knife, and each feed dog may be regarded as the main feeding means with respect tothe knife which moves in opposition thereto, and as an auxiliary feeding means with respect to the operation of the knife which moves in unison therewith.

There is also associated with each knife a presser .member or gage which yields vertically and reciln'ocates liorizontally in unison with the knife. The presser gage rests upon the work, preferably in close proximity to the cutting edge of the knife, to regulate the depth to which the knife penetrates the Work and to hold the work down upon its support.

At the toeor other more or less sharply convex portion of the margin of a sole` the portion to be acted upon by the outer channel knife extendsalong a curve of a greater radius than the corresponding portion of the sole margin which is to be acted upon by the inner channel knife or, in otherV Words, that portion of the outer channel which is to be cut around the toe is longer than the corresponding portion of the inner channel.

tao

lun

llo

' fering knife.

Accordingly, to avoid undesirable overlapping of successive strokes of the inner channel knife at the toc and the resulting danger of mutilation of the sole lmaterial, it is desirable that the stroke of the inner channel knife slide should be variable so that the inner channel knife may have a relatively long stroke, substantially equal to the stroke of the outer knife, while operating along the Slightly curved lateral margin of the sole, and a stroke somewhat shorter than that of the outer knife while operating around the more sharply curved toe portion of the sole. Then the length of stroke of the inner knife slide is shortened, the length of stroke of the feed dog carried by the inner knife slide is also correspondingly shortened. Consequently the sole will then advance less rapidly and may be more easily manipulated to avoid being injured by the knives.

For supporting the work, l employ, preferably, a flat rotary table in conjunction with which I employ an edge and a cham- These are combined and associated, in a lnovel manner, so that all are adjustable simultaneously transversely of the line of feed, relatively to the channeling knives, so that the edge of the innersole is uniformly chamfered, and yet the distance between the bottoms of the channels and the adjacent edge of the innersole may be varied as desired. l/Vhile the chaxnfering knife, the Work table andthe edge gage are bodily adjustable coincidently, the chamfering knife also has an independent movement or stroke which is desirable for causing it to make a clean cut.

In the foregoing, I have referred. to only what may be regarded, perhaps, as the more prominent features of the n'lachine, but it will be understood from the following more detailed description that the invention comprises various other features of construetion and relative arrangement of parts which are of decided advantage and importance.

On the drawings*- Figure l is a view in front or end eleva-- tion of a channeling machiiie embodying the invention.

Figure 2 is a similar view of the major portion of the machine, but on a larger scale.

Figure 3 is a side elevational view of the portion of the machine shown in Fig. 2.

Figure fl a sectional view.y on a fairly large scale, taken along the line 4i-4l of Figure 3.

Figure 5 is a vertical section on the frontto-rear section of the machine.

Figure 6 is a section on the line 6-6 of Figure 5.

Figure Figure 5.

Figure 8 is a horizontal section on the line 7 is a section on the line 7 7 of 8-8 of Figure 3, taken through the main shaft.

Figure 9 shows a side elevation (opposite from that in Figure 3) and illustrates the means for moving the knives and feed dogs from the work.

Figure l() is an enlarged section through a portion of an innersole undergoing channeling.

Figure ll is a similar section through a portion of a completed innersole.

Figure l2 is a, section on the line Y12---12 of Figure 7, looking in the direction of the arrow.

Figure 13 is an elevational view of the feet dog and the associated knives and presser gages and illustrates one of the feed dogs as being provided with a toe to extend between the presser gages and thel knives.

Figure l-lis a section on the line 14--14 of Figure 13; and

Figure l5 is an end view of the elements shown in Figure 13.

Persons skilled in the art, reading the following description of the machine illust qated iu the drawings thus briefly referred to, will understand that, although I have selected for illustration the best form or embodiment of the invention now known to me, nevertheless the invention is capable of various other embodiments, that various details of construction which I hereinafter describe may be changed without departure from the Scope of the invention, and that the phraseology herein employed is for the purpose of description rather than that of limitation.

Proceeding to a description in detail of the said channeling machine, it is, of course, mounted upon a suitable standard or base, a portion of which is illust-rated in Figure 1 and indicated at 20. This standard is illustrated as being provided with a head 21 to which the operative portion of the machine may be bolted or otherwise secured. 22 indicates a goose-neck frame, the base 23 of: which is athXed to the head 21. This frame is provided with a lower horizontal portion 24 having guideways 25 on which a slide 2G is mounted. This slide or carrier supports a rotatable work tablel or support` and is adjustable transversely of the line of feed of the work so as to vary the distance between the channels and thi` edge of the Work or innersole. This slide 26 straddles the guideways 25 and is provided with gibs 27 which take thereunder as shown in Figure l. The rotatable Work table is indicated as a whole at 28 and is best shown in Figure 5. It is circular in plan view, and affords a tia-t supporting face for the Work. Near its perimeter, this table is provided with radial grooves, corrugations or teeth 29 for the purpose of engaging the Work. The table is freely rotatable about a. vertical axis, and

to this end it is provided with a depending stem 30 which is journaled in a bearing 31 formed in the bottom portion of the slide. Just above the stem, the table is provided with a radial flange 32, and a suitable form of anti-friction bearing is introduced be tween the flange 32 and the bottom of the slide 26. As shown, this bearing may comprise two hardened steel rings or washers 33, 34, and a series of balls or spheres 35 held in a cage 36. ".lhis bearing supports the end thrust of the table, and, in conjunction ywith the bearing 31 and the stem 3l), holds the table against lateral vibration. The work-supporting portion of the table is undercut or beveled so as to be more or less frustoconical, as indicated in Figure 5. The slide 26 has an upstanding semi-cylindrieal wall 37 which partially encloses the work table and which conceals it when the machine is seen in front or end elevation, the top of this 1wall 37 being only slightly lower than the wo1'ksupporting surface of the table. Any suitable mechanism, under the control of the operator, may be utilized to adjust the table and its supporting slide or carrier, such, for example, as the mechanism illustrated upon the drawing and which comprises a. lever 38 pivoted upon a bolt 39 and provided with a cam arm 40 (see Figures 5 and 7). The pivot bolt 39 is secured to a segmental plate 51 (hereinafter described) and is held in place by a nut 42. The cam arm 40 is formed with a cam slot 43, as shown in dotted lines in Figure 7, into which extends a pin 44 provided with a roll 45. The upper end of the pin projects through a slot 46 in the slide 26 and is adjustably secured thereto by a nut 47 and a washer 48, the upper extremity of the pin being appropriately threaded to receive the nut. The sides of the pin 44 may be slabbed off so as to lit between the walls of the slot 46 and be thus held against rotation relatively thereto, such flattened or slabbed sides beingr indicated at 50. The cam arm 40 is approximately 'at right angles to the lever 38 and the latter projects from the side of the frame so that it may be manipulated by the operator. A segmental plate 5l is secured upon the hase of the frame by any suitable fastenings, and it and the lever 38 are provided with interlocking means by which the lever may beheld in locked position at several points in its swinging movement. For example. the lever may have a handle 52 pivotcd thereto by the pivot 53 and provided with a latch 54 for engaging the members on the segmental plate. The handle may be provided with the lug 55, between which and the lever 38 may be interposed a spring 56 (see Figure 1). To the peripheral surface of the segmental plate I attach locking members indicated at 57, 58 and 59. The member 58 Leemans may be formed integrally with the segmental plate or it may be secured thereto in any suitable manner. The members 57 and 59 are preferably adjustable and are held in place by screws '60, 61, passed through the slotted end portions of said members into the body of the plate. Each of these 'three members is provided with a notch 69. with which `the latch of the handle may be engaged. Obviously, by lifting the handle so as to disengage the latch from one of the notches, the lever may be moved in one direction or the other to adjust the slide and the work support or table thereon back and forth as may he desired. While the mechanism herein described for supporting the work possesses certain features of novelty and desirability, nevertheless, so far as other features of the machine are concerned, it may be supplanted by any other suitable mechanism for supportmg and adjusting the work.

In the drawings I have shown a channeling knife for cutting obliquely into the substance of a sole toward the sole edge to form a channel' and an inner lip, and an edge-slitting knife for cutting inwardly from the edge of the sole to form a feather and an outer lip. For certain classes of work, however, a single knife only may be used as previously stated. The knives are independently supported and are operated simultaneously in opposite directions. The knives receive their movement primarily from a shaft driven from a suitable source of power. The upper portion of the gooseneck frame, as shown in Figures 3 and 8, is provided With bearings 63, 64, having bushings 65, 66, in which the main shaft 67 is journaled. It is from this shaft that the various power-operated parts of 1 the machine are driven. The shaft itself may be provided with a loose pulley 68, formed as one member of a friction clutch to engage a. clutch member 69 pinned to the end of the shaft. The pulley itself may be driven by a belt 7() from a separate motor from a counter-shaft or other source of power supply. Any suitable means may be utilized to frictionally engage the pulley 68 with the complemental clutch member 69, such, for example, as a bifurcated wedge 7l. located between. the frame and a complementally formed collar 72 loosely mounted on the shaft 67. Between this collar and the hub of the pulley, I may place aplurality of balls 73 held in a cage 74. The bifurcated wedge is illustrated as secured to the end of a rod 75 connected to a treadle (not shown) so that it may be raised and lowered by the operator. In this way, I provide for driving the main shaft 67 at any desired rate of speed up to the speed of the pulley 68. In channeling the end of `an innersole, the clutch-operating wedge may be lowered so as to permit the clutch member 69 to slip relatively to the pulley so as to reduce the speed of rotation of the main shaft and the speed at which the knives are operated.

The two knives may be termed, in order to distinguish them, the outer and the inner grooving or channeling knives, inasmuch as one cuts from the outer edge of the inner` sole and the other cuts into the body of the innersole at a point more remote from the dge thereof. These. two knives are indicated at 76 and 77 respectively, and they are secured, by ineans to be described, to knife carriers 78 and 79. Each knife carrier is reciprocated horizontally or in a plane parallel with the upper surface of the table or work support, and in addition is capable of movement towads and from the face of the Work table. rlhe knife carrier 79 for the inner knife 77 comprises a bar, which is rectangular in cross section as shown in Figure 7, and which is provided with a head 80 at its lower end to which the knife secured. Said knife carrier is mounted in a slide or carriage 81 which is adapted to reciprocate horizontally in a guideway afforded by the main frame. To this end, the main frame, which is hollow, is provided in its side walls with rectangular apertures 82, into which the slide entends and which afford a guideway therefor, and the slide is provided with ext-ended end portions 83, 88 (see Figure zl), which lit within the sockets or recesses 82. The knife. carrier 79 ei;- tends into a rectangular socket 8st in the slide, and its upper portion is in the form of a sleeve, being hollow as shown, so as to afford a recess 85 to receive a compression spring 86. The lower end of the spring is seated in the socket and its upper end bears against a screw 87, which is screwed downwardly into the slide 81 The function of the spring is to force the knife carrier downwardly towards the work table, and to hold the knife 77 yieldingly in its cutting position. t is necessary, of course, that the downward movement of the knife carrier should be limited, and for this` purpose a rod 88 is passed downwardly through a central aperture in the nut. and its lower threaded end is screwed into a threaded socket 89 at the lower end of the recess 85. The upper end of the rod 88 is threaded to ieceive a nut 90 which normally rests upon the upper end of the nut 87 and thus limits the extent to which the knife carrier may be forced downwardly by the spring. rllhe nut 87 is, of course, adjustable axially in the slide and the nut 90 is adjustable on the rod 88 so that the extent of downward movement of the knife carrier may be varied. The upper threaded end of the rod passes loosely through the nut 87. rlhe inn-er knife 77, which is attached to the knife carrier 79, is formed with a cutting` edge 91 to cut a channel a in the Work, as shown in Figure 10, so as to form a flap or rib Z). Said knife is further formed with a second cutting edge 92 which slits the flap or rib so as to remove the outer portion thereof, which is indicated at in Figure 10, thereby leaving the flap Z) relatively narrow in width. These cutting edges 91 and 92 are formed on a shank 93 which is arranged at an acute angle to the knife carrier, as shown in Figure 5. For this purpose, the knife carrier 79 has a lateral extension 94, to which a block 95 is secured by a bolt 96 and nut 97 (see Figure t3). The block and lateral extension of the knife carrier are formed with an interlocking projection 98 and recess 99. The block 95 is provided with a groove or guideway 100 to receive the shank 98 of the cutter.

A cap plate 101 is clamped against the knife shank and the block 95 by the bolt 96 and the nut 97, these lastenamed members 96, 97 rigidly securing the several parts together. The knife may be adjusted lengthwise by an abutment screw 102 passed through a rib 103 on the lateral extension 94 of the knife carrier, and abutting against the end of the knife shank. A. lock nut 104 serves to prevent accidental rotation of the abutment screw. The outer channeling knife, which is indicated as a whole at 76, is mounted upon the knife carrier 78 previously referred to. This knife carrier has a relatively large latera ly-extendng head 105. To this head is secured a block 106 (see Figures 7 and 12) which holds the knife 76. The knife itself is shown in Figures and 10 as being provided with a cutting edge 107 for forming the lip Z in cutting the channel c. lt is also provided with a supplemental cutting edge 108 which slits the lip and severs the strip, indicated in Figure 10, at The shank of the knife 76 is secured to the re movable block 106 by screws indicated at 109, 110, and is arranged ina groove or recess 'in the block, into which an adjustal'ile abutment screw 111 extends, as shown in Figure 5. A lock uut 112 holds the abutnient screw against dislocation after being adjusted. The block 106 is secured to the extel'ided head 105 of the knife carrier 78 by a screw 118. The knife carrier 78, except as herein described, substantially identical with the knife carrier 79, and it is mounted identically tl'ierewith in u slide or carriage 114 substantially similar to the slide or carriage 81 and arranged to reciprocate in a rectangular guideway 82 in the main frame. lnFigure 3, which shows the slides in end view, they can be seen as arranged in parallelism face to face and located to slide in one of the guideways 82. Inasmuch as the knife carrier 78 and the horizontally moving slide on which it is mounted are substantially similar to the knife carrier 79 and the slide or carriage 81, they nee-d not i ciprocatin be described, it being understood that; the knife carrier is pressed downwardly by spring mechanism like that described in connection with the knife carrier 79.

Each knife carrier is provided with a presser member or gage which rests upon the surface of the Work in proximity to the associated knife so as to hold the work down as the knife is cutting, and to limit the depth of the cut made by the knife. In Figure 14, these two presser members are indicated at 115. and 116 respectively, the former being associated with the inner cliainneling knife 77 and the other being assol ciated with the outer channeling knife 76.

These two presser members are likewise shown in face. view in Figure 5. As these two presser members are secured to their respective knife carriers by substantially the same means, I will refer to only one of them in describing it. It consists of a relatively flat, metallic bar, having a rounded lower edge to meet the oncoming work, as indicated at 117. It is placed flat against the head of the knife carrier 79, for example, as shown in Figure 4, and is provided with a rib 118 to fit a groove 119` formed in the face of the knife carrier (see Figure 5). The presser member is adjustably secured to the knife carrier by a screw 1,20y passed through the head of the latter, and the presser member may be adjusted by an adjusting screw 121 threaded into the head in parallelism with the screw and having a coni ical tip 122 to engage the upper end of said presser member. Any other suitable means, however, may be utilized for effecting a minute adjustment of the presser member relatively tol its associated knife carrier and the knife carried thereby. As illustrated, the adjusting screw 121 is provided with a lock m11?. 123. inasmuch. as each presser member is attached to and supported by its associated knife carrier, it is adapted to yield relatively to the work or towards and fromL the lane thereof. The two knife carriers, as s iown in Figure 5, are placed side by side, viewing them in the direction of the movement of the work.

As previouslyV stated, the knife carriers are reciproeated horizontally or in `lanes parallel with the plane of the sur ace of the work table but in opposite directions, this being accomplished by reciprocating the slides in which said knife carriers are meunted simultaneously in opposite directions in guides afforded by the main frame of the machine. To accomplish this result, mechanism must be employed for resaid slides. The slide 81, as shown in igure 4, is provided with a dependent lug v124; which is connected by a stud 125 and link 126 with a two-armed lever having the arms 127 and 128. This lever, as bem` shown in Figures 8 and 9, is provided with a duplex hub 129 mounted loosely upon a shaft 130 journaled' in bearings 131, 132, extending from` the side of the main frame., The upwardly extending arm 128 is pivoted to an eccentric rod 133 provided with an eccentric strap 134 placed upon an eccentric 135 secured to the main drive shaft 67,` as shown in Figure 8. Any suitable form of pivotal connection, such as a stud 136, may be utilized to connect the arm 128 to the eccentric rod 133. The depending arm 127 of the two-armed lever is provided with an elongated slot 137, inwliich may slide a rectangular block 138 (see Figure 4).., in which is journaled a stud 139 extending inwardly from the link 126. Preferably the end of the link is bifurcated (as shown in Figures 2 and 4) so as to straddle the arm 127, and the pivot 139 is threaded at its'ends to receive nuts one of which is indicated at 140. By reason of the construction thus noted the rotation of the main shaft 67, through the ec. centric, the double-arm lever and the link, causes the reci-procation of the slide 81 and the knife carrier 79.

The extent of reciprocation of the knife carrier, however, may be varied by moving the pivot 139 in the slot 137 towards and from the axis of oscillation of the two-. arm lever 127, 128. As kshown in Figure 2, the pivot 139 and its block 138 occupy the lowermost position in the slot 137. By means of a rock lever 141, which has alug or stud 1452' projecting under a rib 143 formed on` the link 126 (as shown in Figure 2), the link may be moved upwardly about the stud 125 so that the stud 139 will be moved towards the axis of oscillation of the two- armed lever 127 and 128, and thus decrease the extent of reciprocation of the slid-e 81 and the knife carrier therein mounted, all for a purpose which will be subsequently explained. The rock lever 141 is under the control of the operator and may be raised and lowered as desired by any suitable means. For example, the said rock lever is illustrated as bei secured to a rock shaft 144 journaled in earings 145, 146 (see Figure 8), and having at its rear end an arm 149 which may be con-` nected by a Chaim rod or other suitable connection 150 (see Figure 1) with a treadle, not shown. The depression of Vthe treadle rocks the shaft 144 and raises the free end of the rock lever 141. The downward movement of the rock lever may be limited by a linger 15,2 formed thereon; and adapted to engage the main frame, as shown in Figure 2. The pivot pin 139 is yieldinglv maintained in the lower end of the slot 137 of the arm 127 by a spring 153, one end of which is attached to a lug 154 on the link 126 and the other end of which is secured to a pin 15.5 projecting from the face of the slide 81,; and consequently, when the operator raises the treadle, the free end of the link 12,6 is moved downwardly to increase the extent of reciprocation of the knife carrier slide 81 and thus to lengthen the stroke of the inner channeling knife 77.

The slide 114 is provided with a laterally and downwardly extending head 156 which serves a double function; that is, it serves as a member of the transmitting connecttions by which the slide is operated and it also serves as a support for an edge gage subsequently to be described. To this head or extension 156 a link 157 is pivoted by a pivot 156, and the link in turn is connected by a pivot 159 with a rock lever which is mounted loosely on the shaft 130 and is provided with two arms 160, 161. The upper end of the arm 161 is connected by a pivot 162 to an eccentric rod 163 formed with a hub or strap 164 encircling an eccentric 165 formed on the same hub on which the eccentric 135 is formed, as shown in Figure S. This hub is secured to the shaft 67 by a pin 166. The two eccentrics 165 and 135 are disposed diametrically opposite each other, and hence, through the connections described, the two slides 81 and 114, and the parts carried thereby, are reciprocated simultaneously in opposite directions horizonally. Further, the eccentrics preferably are of the saine diameter, as shown, and the connections between the eccentrics and the slides 81 and 114 are so constructed and arranged that when the pivot- 139 occupies its lowest or normal position with respect to the slotted arm 127, as shown in Fig. 2, the slides 81 and 114 will be reciprocated through strokes of equal length. Consequently, under normal operating conditions the feed strokes imparted to the work will be of the same length as the knife strokes, thus providing for maximum efficiency in the feeding and cutting of the work as will hereinafter appear. As a matter of construction, the head 156 of the slide 114 may be bifurcated, as shown in Figure 7, so as to straddle the end of the link 157; and similarly the lower end of the arm 160 may be bifurcated to straddle the other end of said link. The arm 160, shown :in side elevation as in Figure 9, is inclined at an angle so as to extend forwardly for the purpose of bringing its end into alineinent with the head 156.

The member 156, which is formed on the slide 114, serves both as a support for an edge gage and for a. chamfering knife, each of which is adjustable towards and from the path of movement of the work when it is being fed. The under side of the head is provided with an undercut or dove-tail guideway 167 (see Figures 5 and 12) in which mounted a slide carriage or support 166. rThis carriage consists of a bar formed to fit within the guideway 167 and the carriage is movable bodily with the main carriage 26 which supports the rotary table or work support. For this purpose, the slide or carrier 26 is provided with an upstanding pin 169, the end of which is flattened to eX- tend into a transverse groove 17 O formed in the under side of the slide 168. Hence, when the slide 26 is adjusted, the carrier or slide 168 moves simultaneously with it. At

'its forward end, the slide 168 is provided with an upstanding member 171 (see Figure against which the edge of the work may be pressed and which thus serves as an edge gage. This member may be formed integrally with the slide 168 or adjustably secured thereto as may be desired. The slide 16S, however, at its forward end is provided with a downwardly extending head 172 (see Figure 5) which is recessed to receive the shank of a chamfering knife 17 3, secured in place by a screw 174 passed through a slot in the knife shank. The head 172 is inclined so that it fits under the frusto-conical portion of the work table, and the knife edge projects upwardly in close proximity to the circular edge of the table so as to chamfer that portion of the innersole which eX- tends beyond the perimeter of the table into engagement with the edge gage 171, as illustrated in Figure 3. As the carrier for the work table is adjusted horizontally in reference to the channeling knives, and in a direction transverse to the lines of reciprocation of said knives, the edge gage and the chainfering knife are adjusted bodily therewith. rllhe chamfering knife, however, must be moved or reciprocated longitudinally of the path of movement of the work, and, for this reason, its supporting carrier or slide 168 is supported by the head 156 of the transVersely movable slide 114 so to reciprocate therewith, the pin and slot connection 169 and 176 between the inain can riage or slide 26 and the chainfering knife slide 168 permitting this movement without affecting the sii'nultaneous adjustment of the chamfering knife with the work table. rThis connection between the main carriage 26 and the slide 168 causes the edge gage to nzove with the channeling knives so as to maintain a constant relation thereto while providing a bearing point for the turning` of the sole as the latter is guided by the operator.

As previously stated, as each channeling knife moves rearwardly, that is; in a direction opposite to the direction of feed of the work, it cuts the material of the innersole, t-he innersole at this time being fed forwardly or in the opposite direction. For accomplishing this result, I employ two feed dogs, one associated with each of the knives and movable horizontally therewith. In addition to this horizontal movement, however, each feed dog is reciprocated vertically so that it has a four-wav motion. These two feed dogs are indicated at 180 and 181 reis mounted inthe slide 114.

spectively. The feed dog 180 is associated with the slide 81 in which the knife carrier 79 is mounted, and theother feed dog 181 is associated with the knife carrier 7 8 and These two feed dogs are arranged side by side (as shown in Figures 3, 13 and 15)., and are serrated on their under faces so as to provide teeth for engaging the surface of the work. As shown, the serrated faces of the feed dogs are of substantial area to enable them to prevent the sole from buckling at the portions about to be presented to the knives. The feed dogs. are mounted on the lower ends of carriers 182, 183, respectively. The carriers are provided with downwardly extending lugs 184 to. which the feed dogs are secured by screws 1840.

Thev feed dog carriers 182, 183, are substantially identical in construction so that I shall describe only one of them. Each comprises 'two sections 18110, 186, which are placed end to end (as shown in Figure 4), and which are recessed to receive between them a spring 187 which tends to hold them apart. The upper section 186 is formed with a transverse guideway 1870 to receive a block 188 encircling an eccentric on the main shaft 67'. There are two eccentrics, one. for each feed dog carrier, as indicated at 189, 190, and they are arranged in diametrically opposite relations, so that, as one feed dog is being depressed, the other is being raised, and vice versa. A rod 191 is passed through the lower section 185 of the feed dog carrier, and its upper end is screwed into a threaded bore formed in the upper section 186. The lower end of the rod is provided with a head 192 which limits the downward movement of the spring-pressed section 182. By this construction, I provide for a yielding engagement of each feed dog with the surface ofthe work, and yet permit the feed dog to receive a four-way motion, as previously stated. The arrangement is such that after each feed dog has been depressed into engagement with the work the respective spring 187 is somewhat. compressed kso that the serrations in the bottonil face of the feed dog are forced into the material of the Sole thus insuring that the sole will be firmly gripped and positively fed by the feed dog. The rod 191 is held against accidental rotation by a screw pin 193 passed through the lug 184 of the feed dog carrier and having its end entering one of a series of grooves formed in the head 192 of said rod.y

It will be seen from the feregoiiig, that, as the main shaft is rotated, the two slides 81 and 1514 are reciprocated in opposite directions; and that, as each slide moves forwardly or in the direct-ion of the feed of the work, the associated feed dog, which is then depressed into its engagement with the work,

Losanna feeds the work forwardly, thel other feed dog in the meantime being raised and moving in. the opposite direction. The parts are so adjusted that, during each com lete rotation of the main shaft, each fe x dog will be depressed into engagement with the work, then moved forwardly to advance the work, then lifted, and then caused to move rearwardly in the opposite direction while out of engagen'ient with the work. As each fred dog moves the work forwardly, the associated channeling knife and the associated presser member or gage moves with the work, without the knife at this. time cutting' the work. of these parts which I have enumerated, the other feed dog is out of engagement with the work. If desired, the end of each feed dog may abut the face of the associated presser member. two presser members 115. and 116 should.'` be so closely adjacent as to be contiguous, as illustrated in Figure 5 for example, as they may be separated at their lower ends,` as shown in Figure 14, in which case the feed dog 181 may be provided with a longitudinal toe or extension 194 toextend between them and to a point beyond the two channeling knives so as to ensure that the Work will be fed beyond the knives when the cut is come pleted.

The feed dogs are moved forward in effective feeding engagement with the work throughout the length of the forward movements of the slides 8l and 114. Inasmuch as these slides also. carry the knives, the strokes of the feed dogs, and consequently the feed movements of the work, are equal in length to the strokes of the knives. It will be seen therefore that each feed dog, while functioning as the main feeding means with respect to the knife travelling backwardly in opposition thereto, will advance the work a distance equal to the length of the backward cutting stroke of said knife, and further that each feed dog, while functioning as the auxiliary feeding means with respect to the knife travelling forwardl and idly in unison with said feed dog, wil feed the work forwardly inv unison with said knife and through a distance equal to the length of knife stroke. Consequently each time a knife is retracted, the work is fed along with the knife so that when the knife again moves backwardly there will be no lost motion between the knife edge and the work but the knife will begin to eut immediately. Itis of importance that the relation between the knife strokes and feed strokes be at least approximately as above described if the knives are to cut practically without idle movements at the start of their strokes or, in other words` if a maximum degree of efficiency is to be attained' in the operation of the machine.

During this forward movement.

It is not essential that the.

By reason of the large area of the serrated work-engaging faces of the feed dogs 180 and 181 and the fact that the serrations are mnbedded firmly in the material of the sole by the con'ipression of the springs 18T, it folle that the sole is firmly gripped and positively fed, and further that the sole is not free while thus gripped to be turned in response to guiding pressure of the operator tending to maintain the edge of the sole against the edge gage. yEhe solo, however, is free to be turned as each feed stroke terminates or during the interval when the compression of the spring 187 associated with one feed dog is being relieved and before the spring associated with the other feed doghas been materially compressed. ln the present machine, by reason of the fact that the sole and the knife are moved in opposiate directions while the cut is being made, the length of stroke of the feed dogs may be, and preferably is, made less than the length of stroke of the feed devices in many machines heretofore used. The feed strokes being made shorter it will be seen that the periods when the sole is free to be turned by the operator occur more frequently. This makes for greater accuracy in cutting since the operator is thus enabled to impart a greater number of turning movements to the sole per given length of sole edge. Consequently it is easier to maintain the sole against the edge gage so as 'to prevent the work from deviating from its proper' relation to the knives, and thus to insure against liability of the sole to throw out at the toe or at the ball with resulting mutilation .of `the material of the sole. Furthermore, the relative position oit' the knives and the work may be more easily changed to compensate for any such deviation of the work from its proper course relatively to the knives as may have occurred.

I provide means by which the channeling or grooving knives may be bodily elevated from the surface of the work. Such means may comprise a lever pivoted at Q00 (as shown in Figure 9), and having one arm Q01 which may be connected by any suitable oonnection 'ith a treadlc.y not shown, and having another arm 209, which enters the framework through an aperture formed therein and is arranged under two plates 208, 208, clan'iped .to the rods 88 of the knife carriers by the nuts 90 and nuts 204 screwed upon the rods 88. By depressing the free end of the lever, the two knife carriers and the presser inen'ibers 115, 116, secured thereto or associated therewith, may be lifted vertically away from the face of the work or away from the work table.

In operation, the shank of an inner-sole is introduced between the work table and the two feed dogs, the latter yielding to permit this insertion, and the edge of the innersole is brought to bear against the edoe gage 177. rEhe machine is then set in operation, and, as the work is fed by the feed dogs, the channeling knives 76 and TT cut the channels in the work and form the lips Z) (l (Figure 10). After completing its forward cut, each knife moves forwardly with the work, during which time the other knife makes its cut. As the work is fed, the chamfering knife chamfers the innersole, as shown in Figure 10. rlhe operator at will adjusts th-e main slide which supports the work table, and thus varies the distance at which the channels are formed from the edge of the innersole. When the toe of the innersole is reached, the operator may, by moving the clutch-controlling yoke 71, decrease the speed of the main shaft 67, and at the same time may reduce the length of the reciprocations of the inner channeling knife by raising the fr-ee end of the link 126 until its approaches the axis of oscillation of the two- armed lever 127, 128, by which the knife-carrying slide is operated.

As it is sometimes desirable to prevent a cessation of reciprocation of the inner knifecarrying slide 81, 1 provide an abutment screw 9.05 arranged in a path of the block 188 on the pivot 189, as illustrated in Figures 2 and 4s, so that the axis of the pivot 139 may not be brought into alinement with the axis of the shaft 18() on which the twoarmed lever 127, 128 is fulcrumed.

After the innersole has been channeled, the two lips and l may be compressed together and condensed and compact-ed, as illustrated in Figure 11, with the lip d bent inwardly toward the middle portion of the innersole and lying upon the lip b, as shown in Figure 11. After this, the face of the innersole may be covered with an adherent lay-er of canvas or the like, but this forms no part of the present invention and is not claimed herein.

Having thus explained the nat-ure of my said invention and described a way of making and using the saine, although without attempting to set forth all of the forms in which it may be made or all of the modes of its use, what I claim is:

1. A channeling machine comprising independent channeling knives, means for simultaneously reciprocating said knives in opposite direct-ions, and means associated and movable in unison with each knife for feeding the work while the other knife is cutting in an opposite direction.

2. A channeling machine comprising feed dogs, means for siii'uiltaneously operating said dogs in opposite directions to impart a substantially continuous feed to the work, a pair of channeling knives, and means for reciprocating said knives in opposite directions to cut in alternation.

8. A channeling machine comprising channeling knives, means for operating said knives to cause them to cut in alternation, means for feeding the work in a direction opposite the cutting strokes of said knives, and a presser gage associated with each knife.

4. A channeling `machine comprising channeling knives, means for ope 'ating said knives to canse them to cut in alternation, means for feeding the work in a direction opposite the cutting' strokes of said knives, a presser gage associated with each kei and means by which each presser gage is caused to reciprocate with its associated knife.

5. A channeling machine comprising channeling knives, means for operating said knives to cause them to cut in alternation, neans for feeding the work in a direction opposite the cutting strokes of said knives, a presser' gage associated with cach knife and arranged to bear on the work adjacent the cuti .LA i

'ting edge of said knife, and means for cansing each gage to reciprocate with its associated knife.

6. A channeling machine comprising channeling knives, means for operating said knives to cause them to cut in alternation, a feeding device associated with each knife and movable therewith, and means. by which each said device is caused to feed the work in a ldirection opposite the cuttingstroke of the non-associated knife.

`7. A channeling machine comin'isingchanneling knives, a presser gage anda feed dog associated with each knife, and mechanism for reciprocating said knives and tl eir associated presser gages and feed dogs simultaneously in opposite directions.

8. A channeling machine comprising channeling knives, mechanism for feedint work, and mechanism for reciprocatin knives simultaneously `in opposite directions, a presser gage having a fixed relation to each knife andanovable therewith, and a feed dog movable with each knife and capable of independent movement toward and from the Work.

9. Achanneling machine comprising channeling knives, means for causing said knives to cut in alternation, and a feeding device associated with each knife for feeding the work to the other knife during the cutting stroke thereof.

10. A channeling machine comprising chain neling knives, means for reciprocating said knives simultaneously in opposite direetioi'is to cut in alternation, and means associated with each knife and movable in a straight path for feeding the work against the cut ting stroke Of the other knife.

11. A eh anneling machine comprising channeling knives, means for reciprocating said knives simultaneously in opposite directions` to cut in alternation, means associated and neling knife, a presser gage and a Workfeed-l ing device.

lil. fl'n a channeling machine, a slide, means for reciprocating said slide, a knife and a feed dog supported by said slide and movable theri-nvith, and means for independently reciprocating said feed dog in lines transverse to its lines of movement with said slide, whereby a four-way motion isl imparted to said feed dog.

l5. A channeling machine comprising ay` pair of parallel slides, a channeling knife and a feed dog attached to and movable with each slide, and means for simultaneously reciprocating said feed dogs in opposite directions but in lines transverse to the paths of movement of said slides.

16. A channeling machine comprising a slide, means for reciprocating said slide, a channeling knife, a knife carrier mounted in said slide and movable therewith, feed dog, v

a feed dog carrier mounted in said slide and .movable therewith, and means for reciproeating the last-mentioned carrier perpendicnlarly to the path of movement of said slide.

i7. A channeling machine comprising a channelingknife, a carrier therefor, a presser gage attached to said carrier in .fixed relation to said knife, a feed dog, a carrier there for in fixed lateral relation to the knife carrier, means for recii'nocating said carriers simultaneously back and forth, and means for ing an independent np and down mo' ement to the feed dog carrier.

1S. A channeling machine comprising channeling knives, presser gages, and feed dogs, one of said feed 'dogs having a toe or extension extended between the presser' gages to ensure the feeding off of the work l.t the completion of the cuttingoperation.

19. In a channeling machine, a work snpport comprising a rotary table having asubs initially flat upper surface and a downwardly converging conical side wall, terminating in a depending stem provided with a circinnferential flange, in combination with a bearing for said stem and a thrust bearing snpportimi; said flange.

20. A channeling machine comprising a main frame, a member movable on said frame, work channeling and feeding mechanisms mounted on said member, a sliding carriage supported on said frame beneath .said channeling n'iechanism, a rotary work table journaled in said carriage, means for moving' said carriage in lines transverse to the direction of feed of the work, a chamfering knife carried by said member, and connections between said knife and said carriage to render said knife adjustable simultaneously with the movement of said carriage.

2l. A channeling machine comprising a channeling knife, a slide for simporting said channeling knife, means for reciprocating' said slide, a chamfer knife carried by said slide to move therewith, and means for adjust-ing said chamfer knife transversely of the movement of said slide.

22. A channeling machine comprising a channeling knife, a feed dog', a slide by which said channeling; knife and feed dog` are supported, means for reciprocating' said slide to channel and impart feed movements to the work, a chamfer knife carried by said slide to chamfer the edg'e of the work by 'the reciprocation of said slide, and means to adjust said chamfer knife transverse to the line of feed.

23. A channeling` machine coi'nprising' a channeling knife, a feed dog, a slide by which said channeling knife and said feed dog are supported, means for reciprocating` said slide, and a chamfering' knife supported and reciprocated by said slide.

24. A channeling' machine comprising' a channeling' knife, a feed dog, a slide by which said channeling` knife and said feed dog are supported, means for reciprocating' said slide, a chamfering knife supported and reciprocated bysaid slide, a work table bodily movable transversely of the path of movement of said knives, and connections between said table and said chanifering knife to move said knife simultaneously with said table.

25. A channeling machine comprising a channeling` knife, a carriage therefor, means for vibrating` said carriage, a slide mounted on said carriage to move in lines transverse to the path of movement thereof, and a chamferinp; knife mounted on said slide.

26. A channeling machine comprising' a channeling` knife, a carriage therefor, means for vibrating' said carriage. a slide mounted on said carriage to move in lines transverse to the path of movement thereof, a chamferinp; knife mounted on said slide` a worksupporting carriage, movable longitudinally of said slide, and an operative connection between said slide and said work carriage.

27. A channeling' machine comprising' a. pair of channelingl knives, a pair of slides on which said knives are respectively support ed, feed dogs and appropriate carriers there for carried by said slides, a shaft, connections between said shaft and said slides for reciprocating said slides simultaneously in opposite directions, and connections between said shaft and said carriers for simultaneousiy reciprocating' said feed dogs in opposite directions.

28. A channeling;l machine comprisinpl a pair of knives, a pair of feeding` devices, a pair of slides, each slide carrying` a knife and a feeding' device, a pair of oppositely disposed eccentrics on said shaft, connections between .said eccentrics and said slides by which said slides are reciprocated simultaneoi'isly in opposite directions, and a pair of eccentrics on said shaft arranged'to reciprocate said feeding' devices simultaneously in opposite directions transversely of the paths of movement of said slides.

29. In a channeling machine, a main frame, mechanisms on said frame for feedingl and for channelingl the work, a guideway on said main frame, a carriage movable in said guideway, a work table journaled in .said carriage, a manually-controlled lever, operative connections between said lever and said carriage, and interlocking' mechanism for securing' said lever at any one of different predetern'ii' ed positions.

30. In a channeling machine. a, channeling knife, a reciprocatory carriage on which said knife is supported, a two-arn'ied lever. a shaft, an operative connection between said shaft and one arm of said lever for oscillating said lever, the other arm of said lever having' a longitudinal slot, a link pivoted to said carriage at one end and having' a stud at its other end located in said slot and movable toward the axis of oscillation of said lever, and manually-controlled means for adjusting,l said link to locate said stud in said .slot at different distances from said axis to tary the extent of the reciprocation imparted to said carriage.

A channeling machine comprising' a pair of reciprocatorv slides, a channeling` knife and a feeding device mounted on each slide, n'iechanisms for reciprocating' saidA slides sinn'iltaneously in opposite directions to cause said knives and feeding' devices to cut and to feed the work in alternation, and means for manually controlling; the extent of reciprocation of one of said slides.

32. In a channeling` machine. a work support, a reciprocatory slide. mechanism for recirocating said slide, a 'channeling knife, a yielding carrier therefor silpported on said slide, a feeding' device supiliorted ou said slide, and movable therewith, means for moving' said feeding' device tcuvard and from the work support, and maunally-controlled means for moving the said knife away from said work support.

233. A channeling` machine coniprising two sets of the following' instrumentalities, viz. a channeling knife, a presser gage and a feed dog arranged in alinement, said sets being arranged side by side; an independent carriage for each of said sets; and mechanism for moving said carriages back and f forth simultaneously but in opposite directions, whereby, when the feed dog of one set is moving in one direction to feed the work, the knife of the other set is moving in the opposite direction to channel the work.

`34. A channeling machine comprising `two sets of the following instrumcntalities, viz, a channeling knife, a presser gage and a feed dog arranged in alinement, said sets beingV arranged side by side; an independent carriage for each of said sets; mechanism for moving said carriages back and forth simultaneously but in opposite directions` whereby, when the feed dog of one set is moving in one direction to feed the work, the knife of the other set is moving in the opposite direction to channel the work; a chamfering knife; and means by which said chamfering knife is reciprocated by one of said carriages.

35. A channeling machine comprising two sets of the following instrumentalitics, viz, a channeling knife, a presser gage and a feed dog arranged in alinement, said sets being arranged side by side; an independent carriage for each of said sets; mechanism for moving said carriages back and forth simultaneously but in opposite directions, whereby, when the feed dog of one set is moving in one. direction to feed the work,

the knife of the other' set is moving in the opposite direction to channel the work; a chamfering knife; means by which said chamfering knife is reciprocated by one of said carriages; a workv table arranged to move bodily transversely of the direction of feed of the work; and means by which the chamfering knife is moved in unison with said table relatively to the last-mentioned slide.

36'. In a channeling machine, means for feeding the' work, a pair of upright knife carriers each having a laterally-extending head at its lower end, an inner channeling i knife attached to one of said heads, an outer knife attached to the other head, and means for simultaneously reciprocating said carriers in lilies parallel with the direction of feed of the work but in opposite directions.

37. In a channeling machine, means for feeding the work, a pair of upright knife carriers each having a laterally-extending head at its lower end, an inner channeling knife attached to one of saidheads, an outer knife attached to the other head, means for simultaneously reciprocating said carriers in lines parallel with the direction of feed of the work but in opposite directions, and manually-controlled means for moving said knife. carriers longitudinally or upwardly to 'lift them from the work.

38. In a channelingv machine, a reciprocatory carriage, a shaft, operative'connections between said shaft and said carriage, a feed dog, a reciprocatory carrier therefor slidably` mounted in said carriage, and comprising a yielding member on which said feed dog Vis secured, a member reciprocated by said shaft, a spring interposed between said members and tending to separate them, anda sliding member connecting saidmembers to limit their separation.

39; In a machine of the classdescribed, a knife reciprocating in the line of feed of the work and arranged to cut upon its backward stroke, and means for feeding the work against the knife while the knife is movin backwardly and for feeding the work witi the knife during the forward stroke ofthe knife.

40. In a machine of the class described, a knife reciprocating in the line of fed of the work and arranged to cut upon its backward stroke, and alternately operated feed devices for advancing the work duringboth the backward and forward strokes of the knife.

41. In a machine ofthe class described, a knife reciprocating iny theline of feedof the work and arranged to cut upon its backward stroke, a reciprocating feed dog for advanc- Y ing the work during the backward stroke ofl the knife, and a second reciprocating feed dog for advancing the work during the forward stroke of the knife.

42. In a machine of the class described, a knife reciprocating in theline of feed of the work and arranged to cut upon its backward stroke, and means for feeding the Work through a distance substantially equal to the length of knife stroke while the knife is moving backwardly and for feeding the work a like distance whilethe knife is moving forwardly.

43. In a machine of the class described, feed mechanism intermittently operative to advance the work, and means movable opposite to the direction of feed to cut the work while the work is being advanced by said mechanism and in the direction offeed to impart an auxiliary feed movement to the work while said feed mechanism is inoperative.

44. In a machine of the class described, feed mechanism intermittently operative to advance the work, means movable opposite to the direction of feed to cut the work while the work is being advanced by said feed mechanism, and an auxiliary feed device for advancing the work while said feed mechanism is inoperative.

45. In a machine of the class described, feed mechanism yintermittentlyI effective to

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