US1795485A - Gaiter-trimming machine - Google Patents

Description

March 10, 1931. s, FINN 1,795,485

GAITER TRIMMING MAbHINE Filed May 27. 1927.. 's'sneets-sheet 1 Fig.1.

WIIIIHIIH March 10, 1931. 5, J, N 1,795,485

GAITER TRIMMING MACHINE Filed May 27, 192' 3 Sheets-Sheet 2 S' J. FINN GAITER TRIMMING MACHINE Filed May 27, 192" 5 Sheets-Sheet 5 March 10, 1931.

Patented Mar. 10, 1931 UNITED STAT SIDNEY J. FINN, OF BEVERLY, MASSACHUSETTS,

:ESIGNOR TO UNITED SHOE MACHIN- ERY CORPORATION, OF EATER-$0M, NEW 3' A CGR-POELATIGN OF NEW JERSEY GAITER-TRILMEEIWG I IAGHINE Application filed May 27,

This invention relates to the manufacture of footwear and is illustrated with reference to a machine arranged to trim projecting portions from the linings of arctics.

In the manufacture of arctics or, as they are also called by rubber shoe manufacturers, gaiters, it is necessary, after the vulcanizing of the arctics and when they are otherwise substantially completed, to trim projecting portions or flaps from their linings. The manner in which the various pieces which go to make up the lining of 'anarctic are ordinarily assembled is such that it is necessary to remove two pairs of flaps from the interior of each arctic. The flaps of one pair extend from the top of the arctic downwardly near the back of its upper approximately parallel to each other until they approach within two i ches or so of the foXing when they swing forwardly in a curve, finally reaching the vicinity of the foxing substantially at the base of the bellows of the arc-tic. The flaps of the other pair run from the top of the arctic to the location of the foxing starting an inch or two to the rear of the forward edge of the quarter and extending roughly parallel to the dge of the bellows throughout the greater portion of its length but ending near the in tersection of the bellows and the foXing. Heretofore these flaps have been trimmed off manually by means of ordinary scissors or shears. The trimming in this way of the lower portion of these flaps, particularly of the rearmost pair, is awkward and the operation is, therefore, slow and correspondingly expensive, especially in the case of high arctics.

It is an object of the present invention to provide simple and inexpensive machine well adapted to trim these projecting portions or flaps from the linings of arctics. In ac cordance with an important feature of the in-' vention the illustrated machine, which comprises a preferred embodiment of the invention, provided with cutters arranged to enter the interior of anarctio, trimming a projecting portion or flap from the lining as they enter and following the line of intersection of the flap and the body of the upper of the arctic to the end of the fiap adjacent to the foxing. To facilitate the presentation of arctics 19 27. Serial no, 184,815.

to the trimming cutters, the cutters are preferably carried by'an arm arranged, as the trimming proceeds, also to be received within the arctic.

Another feature of the invention comprises feeding means illustrated as a plurality of friction-driven feed rolls positioned to engage opposite sides of the projecting por tion or flap which is to be trimmed OE and arranged to feed the flap at an angle toithe direction in which the upper of the arctic is fed thereby tensioning the material transversely of the direction of the cut as the trimming proceeds. This transverse tensioning of the material makes it much easier to out than would otherwise be the case and thus greatly facilitates the trimming operation.

it further feature of the invention com- TflSQS the combination of a pair of thin rotary dish cutters arranged to engage opposite sides of the projecting portion or flap to be trimmed from the upper of the arctic and a plurality of guards for the cutters arranged to prevent damage to the upper of the arctic by the cutters while at the same time permitting free engagement of the flap with the cutters.

Pro ferably and as illustrated herein, a suitable hold-down member is provided in cooperative relation to the cutters and arranged to engage the outer surface of the upper of the arctic at a point opposite and adjacent to the point at which the cutters operate to trim the projecting portion or flap. This aids in the proper presentation of the arctic to the cutters and assists in controlling the position of the arctic during the trimming operation. lifeans, illustrated as manually controlled, are provided for moving the hold-down member into and on: of engagement with the Work.

In another aspect the invention includes an improved method adapted for use in trimming projecting flaps from the linings of arctics and other articles of foot-wear characterized by feeding the upper of the arctic or other article of footwear and the flap to be trimmed therefrom along diverging paths, preferably at an acute angle to each other, so as to tension the material to be out transverse'ly 0. Lee line of the cut as the trimming proceeds. Preferably, and as herein disclosed, the arctic or other article to be trimmed is fed relatively positively and the projecting portion or flap to be trimmed therefrom is fed impositively with a tendency to move at a greater speed than that of the arctic or other article, whereby the tension is maintained.

l Vith the above and other objects and features in view, the invention will now be described with reference to the accompanying drawings and pointed out in the claims.

In t ie drawings Fig. 1 is a side elevation of a trimming machine embodying the present invention;

Fig. 2 is a perspective view of the head of the machine showing the manner in wnich an arctic is presented to the machine to have a projecting portion of do p trimmed from its nmng;

Fig. 3 is a front view, F l a plan view, and Fig. 5 a side elevation of the trimming cutters, feed rolls, hold-down roll, and associated parts of the machine Fig. 6 is a sectional view on the line VL-Vl of Fig. 5 and Fig. 7 is a detailed view of a spring serving as part of the friction drive of the feed rolls of the machine.

The illustrated machine is designed for trimming projecting portions or flaps from the interiors of arctics. To this end, first referring to it generally, the machine shown in the drawings is provided with a pair of rotary disk knives or cutters carried at the end of a projecting arm of such a shape that the knives and arm can be received inside an arctic or gaiter as the projecting portions or flaps are trimmed from its lining. A pair of guard members arranged peripherally of the knives and a third guard member arranged at the rear of the knives are provided to protect the arctic from damage by the rotating knives. Below the knives and in a position to engage the projecting flap to be trimmed from the arctic are a pair of frictionally-driven feed rolls which tend to feed the flap in a direction at an acute angle to the direction in which the upper of the arctic is moved by the operative. A hold-down roll engages the outside of the arctic opposite the disk knives and helps to position the arctic properly. This hold-down roll is carried by an arm held by a sprin in inoperative position, and is moved into engagement with the work by a treadle connected to the roll-carrying arm by a spring which limits the force with which the roll can be pressed against the work.

Going now into detail, as shown in Fig. the machine is provided with a column 1 carrying a head 12 and rising from a base 1 which carries at the rear an electric motor 1 connected by a pulley 18, belt 20, and pulley 22 with a forwardly and downwardly inclined drive shaft 24 suitably journaled in the head of the machine. Idler pulleys 26 are provided to direct the belt between pulleys 18 and 22. Surrounding the shaft 24, and thus also inclined forwardly and downwardly, is a hollow supporting arm 28 provided at its forward end with bearings for a pair of inclined upwardly extending cutter carrying shafts 30, (Figs. 5 and the axes of which lie at right angles to arm 28 and in a plane at right angles to the a:-:ie of the shaft 2%. As shown best in t3, the bearings for shafts 30, 32 comprise a pair of upwardly extending approximately cylindrical members 34-, 36 having their upper ends cut off in a plane at right angles to the axes of shafts 30, 32.

The drive shaft carries at its forward extremity a skew gear 38 meshing with a skew gear 4-0 fast upon the lower end of the shaft 32. Also fast upon the shaft 32 is spur gear 42 meshing with a similar spur gear l i fast upon the sha t 30. A suitable end thrust bearing is provided for the shaft 32 to take up the thrust of the skew is illustrated, this comprises a ball 46 contained in a socket in the lower end of the shaft 32 and bearing upon a plunger d8 pressed upwardly by a spring 50 housed within the plunger. T he lower end of the spring 50 bears upon a screw 52 threaded into a sleeve 5% carried by a plate 56 attached to the end of the arm 28. Thus it will be seen that as long as motor 16 operates, shafts 30 and 32 will be driven con tinuously, the being such that these shafts rotate in opposite directions as indicated by the arrows sh wn in n (i, the shaft 30 moving in a clockwise direction and shaft 32 in a counterclockwise direction as viewed in Fig. 4.

Secured by screws 60, 62 to the tops of the shafts 30 and 32 are a pair of overlapping shear members illustrated thin disk knives or cutters 64, 66, the lower surface of the former and the upper surface of the latter being plane surfaces while the other surfaces of the two knives are somewhat beveled. toward their peripheries to provide sharp cutting edges. It will be observed, as shown best in Fig. 4, that the edges of the disk knives 64-, 66 together form between them an open and unobstructed substantially J-shaped space 6? well adapted to receive a projecting portion or flap to be trimmed from the interior of the upper of an arctic. The shearing plane of the cutters 64, (it; is parallel to the length of the arm 28, and the cutters are therefore enabled to sever the described flaps at their roots without attacking other parts of an arctic.

In addition to the disk knives 64, 66, the shafts 30, 32 also carry a pair of feed rolls 70. '72 arranged to engage opposite sides of the flap to be trimmed as shown at 73 in 5 and 6. These feed rolls are each provided.

with a pair of circumferential grooves 74, 76 arranged to receive a pair of pawl-shaped strippers 7 8, 80 carried by rods 81, 83 positioned somewhat to the rear of the axes of shafts 30, 32. The strippers 78, 80 serve to prevent the flap 73 from adhering to either of the feed rolls. In addition to the grooves 74, 76, the feed roll 70 is provided with an annular toothed member 84, frictionally held in another groove formed in feed roll 70, opposite and projecting toward a groove 86 in the feed roll 72, the toothed member 84 and the groove 86 being positioned somewhat to deform the flap gripped between the feed rolls so as to help the feed rolls to get a good hold upon the flap.

Keyed to the shafts 30 and 32, as shown at 90 (Fig. 6), are two pairs of washers 92, 94 and 96, 98. The upper edges of Washers 94 and 98 are beveled and are overhung by similarly inclined surfaces formed upon feed rolls 70, 72. Frictionally to connect washers 94 and 98 and, therefore, shafts 30, 32 with feed rolls 70, 72 and thus to drive the feed rolls 70, 72, a pair of arcuate springs 100 (Figs. 6 and 7) are positioned between washers 94 and 98 and the overhanging surfaces of feed rolls 70, 72. Between the upper ends of feed rolls 70, 72 and disk knives 64, 66 are positioned washers 102, 106 and flanges 104, 108 formed on shafts 30, 32.

Carried by supports 105, 107 (Figs. 3 and 6), secured to the end of the arm 28, and partially surrounding disk knives 64, 66, are a pair of arcuate guards 110, 112 (Fig. 4) which serve to avoid injury to an arctic if it should be carelessly presented to the machine. Overlapping the rear of the disk knives 64, 66 is a third guard 114 resting upon the upper surfaces of the portions of the strippers 78, 80 remote from the feed rolls and carried by the rods 81, 83 to which the strippers 7 8, 80 are secured. The rods 81, 83 are carried by a bracket or brackets secured near the lower end of the arm 28.

A second arm 128 rotatably carrying at its outer end a hold-down roll 130 is pivoted to the head 12 of the machine above the arm 28 and approximately parallel thereto. The roll 130 is, when the machine is at rest, held spaced from the disk knives 64, 66 by a spring 132 hearing at one end against a seat 134 carried by the head of the machine and'adjustable by means of a screw 136, and hearing at the other end against a suitable abutment 138 carried by the arm 128. To move the arm 128 so as to bring the roll 130 into engage ment with the external surface of the body of an arctic adjacent to the cutting point as shown in Figs. 5 and 6, the arm 128'is secured to the upper end of a cable 140, passed througha guard tube 142,and carrying upon its lower end a collar 144 which forms a seat for a spring 146 (Figs. 1 and 2). The upper endof spring 146 bears against a finger 148 clamped to the end of a bent rod 150 which extends upwardly, then rearwardly, and tinally downwardly through the column 10 as shown in Fig. 1. A guide member 154 and a suitable bearing 156 serve to maintain the rod 150 against transverse movement while permitting vertical movement. The lower end of the rearward portion of the rod 150 is connected by a tension spring 158 with a lever 160 fulcrumed at 162 to the base of the machineand connected intermediate its ends by a link 164 with a treadle 166 fulcrumed at 168 to the base of the machine. A spring 170 surrounding the upper portion of the rear arm of the rod 150 bears at its upper end against a pin 172 passing through the rod, and at its lower end against a washer 174 seated against the upper end of the bearing 156 and serves to lift the rod 150 when the treadle is released. Thus it will be seen that depression of the treadle 156 serves to bring the roll 130 into engagement with the outer surface of the upper of the arctic a flap of the lining of which is engaged by disk knives 64, 66, the pressure of the roll 130 being limited to the force which can be transmitted by spring 158, but being suflicient to maintain the body of the arctic against the cutters. Also, when the treadle is released the arm 128 and the roll 130 are moved away from the disk knives by the spring 132 to facilitate the removal of the work from the machine.

Since the linings of arctics are commonly made of rubberized material, it is desirable slightly to lubricate the surfaces of disk knives 64, 66. For this purpose the machine is provided with an oil reservoir of a well known type, the outlet of which is controlled by a plunger 182 operated by a hand lever 184. The oil passes from the reservoir 180 through a tube 186 paralleling the arm 28 and then extending upwardly to the vicinity of the disk knife 64upon which it discharges the oil. The outlet to reservoir 180 should be adjusted so that a drop of oil passes out every two or three minutes, lubricating the disk knives 64, 66 but not suflicient in any way to damage the arcticsoperated upon.

The rear portion of the upper of an arctic commonly comprises a layer 200 (Figs. 2, 5 and 6), usually made of two sheets of rubberized fabric vulcanized together, and two strips 202 of lining material portions of which are vulcanized to the inside of the layer 200 in overlapping relation at the extreme rear of the arctic. The forward edges or margins 73 of strips 202 are loose and are two of the projecting portions or flaps here tofore mentioned which must be trimmed off at or close to their roots one of which coincides with the line indicated at 206 in Fig. 2. In using the machine, the upper edge of the arctic to be operated upon is gripped by the operative upon both sides of a flap 73 as shown in Fig. 2 and the-rootof the upper end of the flap is introduced between t isk knives 64, claim as n W enl desire to secure by Letters 66. Then the operative steps upon the Patent of "he Uritec States is: treadle thereby bringing the roll down 1. i hine for trimming; projecting porens h )S from the linings of erotics or 21' l sung, in combinek and 6 to maintain the root of the iap to the line of the cut, after \VlllCll he moves tie arctic tion hairinto the position shown in Figs. 2 i

lire

c e of I001; n to enter the interlor of for rardly and upwardly in a dire "o trim. from lining as they enter ing a large component in the rection of the extending from length of ti e arm 28, until reaches the posii it; toning, und tion shown in Fig. then he lets go of the to fr lion the upper with the lit located at extreme fleeting portion rear of the arctic i 3f the upper of the arctic proceeds.

for trimming the linings of mt. o1 foot-near liming,

, uil1lJ1l12l,Ll.Ull, an arm arranged to enter portion of the flap is ti 1 arctic article of iootwear the trimming 1s ompleted h be trimmed, and cutting and removes the arctic f ns c211 .1 arm enn arranged to Each arctic has also a engage o pro ortion of the llllli'lg hetrim elf the projecting ic or other article of foot 2: dirwtion having a large in the direction of the ing portions having must be trimmed 0? forward edges of t tic upon a line such Fig. 9. These lisp J 7 V Mancin similar manner t or trin ning the linings of that it is not neces ticles motwenr having, take hold of the he arm n i'nng'cd to enter the if :ootvrm r the lining it since these 1 eps e traight "from the to, of (i i which is H il, and a pair Oil 1'0- cnti-en f th j' E- g A l, cutters czzrried o said arm and er anged it should he observed the-.t durino" r a projecting p rtion of the lining ming operation the arctic is move: I i em and to trim i the projecting ing plane of dist: knives (56 n1 thus a is moved length vise of the projecting;

at an acute angle to the direction in which rolls 70, 72 tend. to fc l en the p o ecting (lap 73. Thus the action or feed rolls '70, 7 which tend to feed t 1e fiep 72 faster hen he arctic in comhi notion, is fed manually, serves to tension the fabric i rim projecting in a direction having a substantial com- 0 i ero cs or other ponent transverf-iely o the line of cut. This articles of footw ar, '1 cutting means hetransverse tension greatly facilitates he mg carried by an tin reed, as the trimtrimming' operation. lit else tends tr n l -i ca i l formed 5 nit the trimming to proihe arctic or the upper of the erotic down towers knives 6%, 66 and insures close tnmm the flap. It is to be noted, moreover, ti :1 sublinear speed of the cutting edges of t n i towenl, l eof.

knives Get, (36 and consequei tly the surface A machine for trimming projecting porspeed of the feed rolls 7O, '72, when rui ning "ons fron the i s of erctics or other aridly, is many times roster then the speed it cl- 0. nc, in combination,

to engage opposite on of a 1i i by an arm arranged, as

l to enter arctic or mmin may pro- 2 which the ope *etor moves the arctic durin the trimming operation. However, since rolls 70, 72 are frictionally driven, those rolls are much retarded during Le trimming operation. Also, they may slii elatively to the 0 nin said i l on. trimming proc r article so that from the extreme top of the arctic or flap T3 of the arctic, still nmintaining tree ceed, tion, however, by reason of the toothed ed other article of foot veer interlorly is far as of the member 8e; and times lzeepxrg the foxmg' thereof.

the projecting flap under tension though 6. A machine for t 'imming projecting feeding impositively rather than positively flaps from arctics or other articles of foot and thus preventing such disintegration of Your having, in coml'iination,means fortrimthe chip trimmed from the Work as might inming projecting flaps of fabric from arctics or other articles of footwear, and means for terfere with the feeding action.

Having described my invention, What I tensiomng a flap transversely of the direction of the trimming cut at the line of the cut as the trimming proceeds.

7. A machine for trimming projecting flaps from arctics or other articles of footwear having, in combination, cutting means k to trim a flap from an arctic or other article, and a plurality of feed rolls engagi... opposite sides of the flap and tending to feed the flap in the general direction of the trimming cut and at the same time tensioning the material at the line of the cut transversely of the direction of the cut.

8. A machine for trimming projecting portions or flaps from articles of footwear having, in combination, cutters arranged. to trim a projecting portion or flap from the interior of an article of footwear, and a plurality of frictionally driven feed rolls engaging opposite sides of the projecting portion or flap arranged to carry the chip away from the cutters and at the same time to tension the material at the line of the cut transversely of the direction of the cut.

9. A machine for trimming projecting flaps from arctics or other articles having, in combination, a pair of co-operating cutters arranged to trim a flap from an arctic or other article, and a plurality of feed rolls engaging opposite sides of the flap and arranged to feed the flap in the general direction of the trimming cut and at the same time to tension the material at the line of the cut transverse 1y of the direction of the cut.

10. A machine for trimming projecting flaps of fabric from arctics or other articles comprising a pair of disk cutters arranged to receive between them a flap projecting from the interior of an arctic or other article of footwear and extending from the top a substantial distance toward the sole thereof, and to trim it from the arctic or other article, and feeding means arranged to engage the flap inside the arctic or other article adjacent to the trimming cut.

11. A machine for trimming projecting flaps of fabric from arctics or other articles comprising a pair of disk cutters arranged to receive between them a flap projecting from the interior of an arctic or other article of footwear and extending from the top a substantial distance toward the sole thereof, and to trim it from the arctic or other article, and feeding means arranged to engage the flap inside the arctic or other article adjacent to the trimming cut and to tension the material transversely of the direction of the cut as the cutting proceeds.

12. A machine for trimming projecting flaps from arctics or other articles of footwear having, in combination, cutting means arranged to trim a projecting flap from an arctic or other article of footwear, a plurality of feed rolls adjacent to said cutting means arranged to engage opposite sides of a ,fiap to exert a feeding action on the arctic or other article to present it progressively to the cut ting means, and a pair of strippers operative to strip the trimmed portion of the flap from the feed rolls.

13. A machine for trimming projecting flaps from arctics or other articles of footwear having, in combination, cutting means arranged to trim a projecting flap from an arctic or other article of footwear, a pair of feed rolls adjacent to saidcutting means arranged to engage opposite sides of the flap to exert a feeding action on the arctic or other article th by to j resent it progressively to the cutting means, and a pair of strippers, one engaging each of the feed rolls, operative to strip the trimmed portions of the flap from the feed rolls. I

14. A machine for trimming projecting flaps from artics or other articles of footwear having, in combination, a pair of powerdriven shafts, a pair of co-operating disk cutters carried by the respective shafts, and a plurality of feed rolls adjacent to the cutters and mounted for rotation on the respective shafts, both said feed rolls being driven frictionally from the shafts and arranged to engage opposite sides of a flap to assist in feeding the article to the cutters.

15. A machine for trimming projecting portions from arctics or other articles of footwear having, in combination, means for trimming a projecting portion from an arctic or other article of footwear, a plurality of feed rolls adjacent to the trimming means and arranged to receive between them the pro jecting portion which is to be trimmed off, said feed rolls each being provided with a circumferential groove, and a stripper in each groove to prevent the chip trimmed from the workfrom adhering to the feed rolls.

16. A machine for trimming projecting,

portions from arctics or other articles of footwear having, in combination, a pair of cooperating disk cutters arranged to trim a proj ecting portion from an arctic or other article of footwear, a plurality of feed rolls adjacent to the cutters and arranged to receive between them the projecting portion which is to be trimmed off, said feed rolls each being provided with a plurality of circumferential grooves, and a plurality of strippers in the grooves to prevent the material of the work from adhering to the feed rolls.

17. A machine for trimming projecting flaps from the interiors of arctics or other articles of footwear having, in combination, a projecting arm formed and arranged to enter an arctic or other article of footwear, means carried by said arm for trimming from an arctic or other article of footwear a projecting flap of fabric extending from the top a substantial distance toward the s le th r f, and m ans for t nsioni g the flap transversely of the direction of the trimming cut as i he trimming proceeds.

18. A machine for trimming a flap from articles of footwear having, in combination, means for trimming from the interior of an article of footwear a flap extending from the top of the article of footwear, a substantial distance toward its solo, a pair of feed rolls arranged to engage and feed said flap, one of the feed rolls having a groove and the other feed roll having a member opposite the groove in the first feed roll and projecting toward said groove to cause the feed. rolls to deform the flap engaged by said feed rolls and thereby firmly to grip the flap.

19. A machine for trimming a flap from articles of footwear having, in combination, means for trimming a flap from an article of footwear, a pair of feed rolls arranged to engage and feed said flap, one of the feed rolls having a groove and the other fGQC roll having a frictionally held toothed member opposite the-groove in the first feed roll and projecting toward said groove to cause the feed rolls to deform the flap engaged by said feed rolls and thereby firmly to grip the flap.

20. A machine for trimming projecting portions from arctics or other articles of footwear having, in combination, a pair of disk cutters mounted to be received bodily within an arctic or other article of footwear and arranged to engage opposite sides of a portion to be trimmed from the arctic or other article, and a pair of guards for the cutters arranged to protect the work flOll'l damage by the edges of the cutters and leaving unguarded a substantially V-shaped space between the cutters.

21. A machine for trimming projecting flaps from arctics or other articles of footwear having, in combination, a. pair of disk cutters arranged to receive between them a flap to be trimmed from an article, a pair of guards arranged peripherally of the cutters to protect the work piece from the edge of the cutters and arranged to leave unguarded a V -shaped space between the cutters so that the flap may have unobstructed access to the cutters, and another guard arranged to overlie the cutters on the side of their centers remote from said V-shaped space.

22. A machine for trimming projecting portions from arctics or other articles having, in combination, a pair of cutters arranged to engage opposite sides of a projecting portion extending from the top a substantial distance toward the sole interiorly of an arctic or other article and to sever the projecting portion therefrom, and a holddown member arranged to engage the arctic or other article opposite the projecting portion.

23. A trimming machine comprising, in combination, a pair of shearing cutters supported and arranged to operate inside an arctic or other hollow article of work to sever a flap attached to the inside of the article, means arranged to operate one or both of said cutters, and a roll the periphery of which is arranged to maintain the body of the article against the cutters adjacent to the eu ting point thereof and thereby dire:-t the root of the flap to said cutting point.

24:. A machine for trimming proj cting flaps from arctics or other articles of footwear having, in combination, a pair of disk cutters mounted on parallel axes and arranged to engage opposite sides of a flap to be trimmed from an arctic or other article of footwear and to sever the flap therefrom, and a hold-down roll mounted for rotation about an axis substantially parallel to the plane of the axes of the disk cutters and arranged to engage the work piece opposite the flap thereby controlling the relation of the work piece to the cutters as the trimming proceeds.

25. A machine for trimming projecting portions or flaps from arctics or other arti- CLGS havii in combination, a pair of cutters arranged to engage opposite sides of a projecting portions or flap to be trimmed from an arctic or other article to sever the projecting portion or flap therefrom, a holddown member arranged to engage the arctic or other article opposite the flap to be trimmed therefrom to hold the arctic or other article in co-operative relation to the cutters, a treadle, and connections from the treadle to the holddown member for moving said hold-down member into and out of engagement with the arctic or other article.

26. A machine for trimming projecting flaps from arctics or other articles having, in combination, a pair of disk cutters arranged to engage opposite sides of a flap to be trimmee from an arctic or other article and to sever the flap therefrom, a hold-down roll arranged to engage the work piece opposite the flap to be trimmed therefrom to hold the arctic or other article in co-operative relation to the cutters, and manually controlled means for moving said hold-down roll into and out of engagement with the work piece.

27. A machine for trimming projecting flaps from the interiors of arctics or other articles of footwear having, in combination, a frame, an arm projecting from the frame, a pair of disc knives carried by said arm for rotation about axes substantially perpendicular to said arm and arranged to engage and trim a flap from the interior of an arctic or other article, a second arm movably carried by the frame, a hold-down member carried by the second arm, and means for moving the second arm to bring the holddown member into engagement with an arctic or other article to be operated upon to hold the upper of the arctic or other article in co-operative relation to the trimming 32. A machine for trimming the linings means.

28. A machine for trimming projecting flaps from the interiors of arctics or ot er articles of footwear having, in combination, a frame, an arm projecting from the frame, a pair of di 1 cutters carried by the arm and arranged to receive between them and trim a projecting flap from the interior of an arc tic or other article, a second arm movably carried by the frame ap n'oxin'iately paral,

lel to the first, a hold-down roll carried by the second arm, and means for moving the second arm to br the hold-down roll into engagement with the arctic or other article operated upon to engage that article opposite the flap to be trimmed therefrom, thereby maintaining the article in co-operative relation to the cutters as the trimmin proceeds.

29. A machine for trimming projecting portions or flaps from the interiors of arc tics or other articles of footwear having, in combination, a pair of cutters arranged to engage opposite sides of a projecting portion or flap to be trimmed from the interior of an arctic or other article of footwear and to sever the projecting portion or flap there from, a hold-sown member arranged to engage the arctic or other article of footwear opposite the projecting portion or flap to be trimmed therefrom and adjacent to the cutters to hold the arctic or other article of footwear in co-operative relation to the cutters, and means for moving said hold-do 7rn member into and out of engagement with the arctic or other article of footwear arranged to limit the force with which the hold-down member i held in engagement with the arctic or other article of footwear. 30. A machine for trimming projecting flaps from'arctics or other articles of f i wear comprising a pair of dislr cutters ranged to enter the interior of an arctic or other article of footwear and to receive be tween them a flap extending from the top toward the sole thereof to trim it from arctic or other article, feeding means arranged to engage the flap adjacent to the trimming cut, and means for lubricating the work-engaging surfaces of the disk cutters,

31. A machine for trimming projecting flaps from the linings of arctics or other articles of footwear having, in combination,

'= an arm arranged to enter an arctic or other and means for lubricating the cutters comprising a source of supply of lubricant and a pipe extending from the source of supply approximately parallel to the cutter-carrying arm and arranged to deliver lubricant to the cutters.

of arctics or other articles of footwear having, in combination, an arm arranged to enter an arctic or other article of footwear the lining of which is to be trimmed, and a pair of cutters carried by said arm and each mounted for rotation about'an axis substantially at right angles to the general direction of said arm, said cutters being arranged to engage a projecting portion ofthe lining between them and to trim off the projecting )OPtiOIl of the lining as the arctic or other article of footwear is moved in a direction having a. large component extending in the direction of the length of the arm.

A machine for trimming the linings of arctics or other articles of footwear having, in combination, an arm arranged to enter an arctic or other article of footwear the lining of which is to be trimmed, a pair of shafts carried by said arm arranged substantially at right angles to the general direction of the arm, and a pair of rotary cutters mounted upon said shafts and arranged to engage be tween them a projecting portion of the .lin- 1 ing of the arctic or other article and to trim oh the pro ecting portion as the arctic or other article is moved lengthwise of the pro- 34. A machine for trimming the linings of arctics or other articles of footwear having, in combination, an arm arranged to enter an arctic or other article of footwear the lining of which is to be trimmed, a pair of shafts carried by said arm and arranged for rotation about axes extending substantially at right angles to the general direction of the arm, and a pair of thin rotary disk cutters mounted upon said shafts and arranged to engage opposite sides of a projecting portion of the lining of the arctic or other article and to trim oil the projecting portion as the arctic or other article is moved lengthwise of the projecting portion.

35. A machine for trimming projecting flaps from the linings of arctics or other articles offootwear, having, in combination, an

arm arranged to'enter an arctic or other article of footwear the lining of which is to be trimmed, a pair of rotary cutters carried by said arm and arranged for rotation about axes substantially at right angles to the general direction of the length of the arm, and a pair of feed rolls mounted for rotation about the same axes as the cutters and arranged to engage opposite sides of a flap to be trimmed from the interior of the arctic or other article and tending to feed the flap in the general direction of its length thereby presenting the flap to the cutters and causing the cutters to sever the flap from the arctic.

36. A machine for trimming projecting flaps from the linings of arctic-s or other articles of footwear having, in combination, an arm arranged to enter an arctic or other article of footwear the lining of which is to be trimmed, a pair f rotary cutters carried by said arm and arranged for rotation about axes substantially at right angles to the general direction of the length of the arm, and a. pair of feed rolls mounted for rotation about the same axes as the cutters and arranged to engage opposite sides of a flap to be trimmed from the interior of the arctic or other article and tending to feed the flap in the general direction of its length thereby presenting the flap to the cutters and causing the cutters to sever the flap from the arctic or other article, the feed rolls being arranged at the same time to tension the material of the flap transversely of the direction of the cut.

37. A method of trimming projecting flaps from the lining of arctics or other articles of footwear characterized by feeding the up per of the arctic or other article of footwear and the flap to be trimmed therefrom along diverging paths as the trimming proceeds and thereby tensioning the material to be cut transversely of the line of the cut.

38. A method of trimming projecting portions from the linings of arctics or other articles of footwear characterized by feeding the upper of the arctic or other article of footwear positively and a flap to be trimmed therefrom impositively along paths diverging at an acute angle as the trimming proceeds and thereby tensioning the material to be cut.

39. A trimming machine comprising a supporting arm formed and arranged to project into an arctic or other hollow article of work, a pair of cutters arranged in shearing relation and mounted on said arm to operate in side the hollow article of work, mechanism mounted on said arm for operating one or both of said cutters, and means mounted on said arm adjacent to said cutters to direct an unattached margin of material on the inside of the article into the operating field of the cutters.

40. A trimming machine comprising a hollow supporting arm formed and arranged to project into an arctic or other hollow article of work, a pair of rotary disk cutters arranged in shearing relation and mounted on said arm to operate inside the hollow article of work, mechanism arranged in said arm for driving said cutters, and means mounted on said arm adjacent to said cutters to direct an unattached margin of material on the inside of the article into the operating field of the cutters.

41. A trimming machine comprising a supporting arm formed and arranged to project into an arctic or other hollow article of work, a pair of cutters arranged in shearing relation and mounted on said arm to operate inside the hollow article of work, the shearing plane of said cutters being substantially parallel to the length of said arm, mcchanism mounted on said arm to operate said cutters, and means arranged adjacent to the cutters to direct the root of an unattached margin of material on the in side of the article into the operating field of the cutters.

42. A trimming machine comprising a supporting arm formed and arranged to project into an arctic or other hollow article of work, a pair of cutters arranged in shearing relation and mounted on said arm to operate inside the hollow article of work, the shearing plane of said cutters being substantially parallel to the length of said arm, mechanism mounted on said arm to operate said cutters, means mounted on said arm adjacent to the cutters to direct an unattached margin of material on the inside of the article into the operating field of the cutters, and means arranged to maintain the body of the article against the cutters at the cutting point thereof to insure severing said unattached margin at its root.

In testimony whereof I have signed my name to this specification.

SIDNEY J. FINN.

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