US1666964A - Lining-trimming machine - Google Patents

Description

April 24, 1928.

J. GOULDBOURN ET AL LINING TRIMMING MACHINE Filed Feb. 28. 1925 llllll II I I I NVE/V 727/95 Patented Apr. 24, 1928.

UNITED STATES 1,666,964 PATENT OFFICE.

JOSEPH eouLDBoUn AND JOHN wILLIAII GODDARD, or LEICESTER, ENGLAND, AS-

SIGNORS 'ro UNITED SHOE M CHINERY CORPORATION, or PATERSON, NEW JER- SEY, A coaroaA'rIoN or NEW JERSEY.

'LINING-THIMMING MACHINE.

. Application filed February 28, 1925, Serial No. 12,427, and in Great Britain March 8, v1924.

This invention relates to cutting machines.

and is herein illustrated as embodied in a machine designed for use in severing surplus sheet material inside and conformlng to the upper of a shoe. The invention is exemplified with particular reference to trimming surplus portions of the linings of shoes.

In the manufacture of certain kinds of fancy shoes, it is customary to cut out ornamental openings in the upper, to attach the lining to the upper by stitches which extend along the edges of the openings in the upper, and later to cut out those portions of the lining which "are exposed by the cut-out openings in the upper. The portions of the lining which are thus exposed are commonly known as panels and the operation of cutting them out as panel cutting. The panel cutting may be done in the stitching room before the upper has been lasted, but is commonly done in the packing room after the shoe is otherwise complete. Another occasion when a similar trimmlng operation must be performed arises when a marginor a portion of the margmof the lining of a shoe projects beyond the top of the upper until after the lasting operation, as it sometimes does until the shoe is otherwise finished, wherefore this projecting lining material must be trimmed off into conformity with the outline of the edge of the upper.

The general object of the present invention is to provide improved means for. per forming these and similar operations.

According, therefore, to one feature of the invention there is provided a support shaped to enter a shoe so as to support an edge of the upper thereof, whether that edge extends alon the top of the shoe or about an ornamenta opening in the upper thereof, a cutter mounted in the support, and arranged to function inside the shoe, and means for operating the cutter. In the illustrative construction a reciprocating cutter is mounted at the outer end of a supporting arm arranged to project into the forepart of the shoe and adapted to permit the shoe to be moved with respect to it so that the operator may cause the cutter to sever the lining along the desired path.

In order to ensure the making of a clean cut as well as to facilitate the proper guiding of the movements of the shoe by the operator, a further feature of the invention comprises a cutting block adapted to cooperate with the cutter andhaving a gaging face adapted to engage an edge of the upper to guide the feeding of the shoe so that the 'cut produced may readily be caused to follow av path close to said edge. In the illustrative construction the cutting block has a narrow, flat under face against which the knife cuts; and is provided with two 'gaging faces which may be used alternately when cutting out a panel so that panels may be completely out out without turning the shoe entirely around, and panels having portions which taper to a narrow apex may readily be operated upon by cutting in to the apex along one side and then out along the other side.

In certain instances, for example when a panel is located in the toe portion'of the vamp, it may be impossible or impractical, by reason of the presence in the shoe of the end of the supporting arm of the machine, to turn. the shoe sufiiciently to cut out the panel; and in order to provide for this and similar possibilities, a further feature of the inventionrelates to means forproducing relative movement of rotation between the cutter and the support. In the illustrative construction the reciprocating cutter is mounted in the support for rotation about an axis which passes through a point in the edge of the cutter. Thus, by turning the cutter about said axis the cuts made by it may be made parallel to the guiding edges of the up er irrespective of curves and obliquity of said edges. This( feature may be used to do away with much turning or skewing of the shoe, and in some cases it affords access to parts of the work that would otherwise by inaccessible in consequences of interference of the supporting arm with manipulation of the shoe.

Furthermore,the cutting block is also arranged to turn about the said axis, and the machine is provided with manually operative means by which the cutter and the cutting block maybe turned collectively about said axis'while the machine is operating. So, even though the cutter is concealed by the shoe, the cutting block furnishes a visual indication of the direction in which the cutting edge extends, and by turning the cutting couple one way or the other tomamtain the edge-guiding face of the cutting block parallel to the work-guiding edge of the upper as the trimming progresses, the operative may cause all the cuts to extend parallel to said edge.

These and other features of the invention including certain details of construction and combinations of parts will be described as embodied in an illustrative machine and pointed out in the appended claims.

Referring now to the accompanying drawm s,

%igure 1 is a side elevation, partlyin section, of a machine in which the present invention is embodied;

Figure 2 is a front elevation of apart of the machine, and

Figure 3 is a detail on an enlarged scale showing the relative positions of the knife, the cutting block and the work.

The illustrative machine comprises a frame 1 having two forwardly rojecting arms 2 and 3 one above the ot er. The lower of these arms 3 (which is downwardly inclined towards the front of the machine at an angle of some fifteen degrees to the horizontal) is small in cross-section and of such a length as to permit of its forward end being advanced well into the forepart of a shoe. In the forward end of the arm 3, and nested in the work-support hereinafter described, is mounted a reciprocating chopping knife 4 and at the forward end of the upper arm 2 is a cutting block 5 against which the knife 4 cuts to trim the work.

The knife is about one-eighth of'an inch wide and is formed at the upper end of a cylindrical rod 6 the axis of which is vertical and passes through the centre of the horizontal knife edge.

The rod 6 is secured in a sleeve 7 having at its upper end a face against which a shoulder 8 on the rod is clamped by a screw 9 threaded into the lower end of "the sleeve 7 and engaging the lower-end of the rod. The sleeve 7 has formed on it a flange 10 which is supported by a shoulder 11 formed in a second sleeve 12 slidin ly mounted in a guiding sleeve 13 which is rotatably adjustable in a block 14 fixed in the end of the lower arm 3. The sleeve 12 has fixed to it a key which enters a keyway 15 formed in the sleeve 13 so that the sleeves may have relativeaxial movement but no relative turning movement. A compression spring 16 surrounding the sleeve 7 and within the sleeve 12 bears at its upper end against a knife guide 17 rotatably mounted in a cap 18 screwed onto the upper end of the rotatable member 13 and at its lower end against the T e spring holds the ange down on to the upper face of the flan e 10 on the sleeve 7 eeaeea shoulder 11111 the sleeve 12 and presses the I Upward movement of the member 13 under the influence of the spring 16 is limited by a projection 22 on the member which engages the block 14. The knife bar or rod 6,and the sleeves 7, 12 and 13 are coaxial, and the axis bisects the knife edge so that when the member 13 is rotated, as hereinafter described, the knife 4 is also rotated about this axis. As the shaft 21 is rotated, the knife is reciprocated relatively to the sleeve 13. The knife guide 17 has in it an opening through which the knife projects and the upper faces of the knife guide and cap 18 form a support for the work being operated upon. As the knife wears away and is reground, the cap 18 is adjusted downwardly to maintain constant the distance, say about one-sixteenth of an'inch which the knife projects above the face of the cap when at the top of its stroke.

The turning of the cap cal adjustment thereof does not turn the cutter guide 17, since the two members have a swivel connection and the opening in the guide closely surrounds the cutter. Concutter is not circular in cross-section the descr1bed construction provides for close fitting of the parts to prevent fuzz and dirt from usted position. The cap and mem er may be pressed downward by the operator against the action of the spring 16 to permit a relatively thick portion of a workpiece (such as aseam) to pass beneath the cutting- 18 to obtain verti- 'sequently, although the upper portion of the block 5 which, although as hereinafter de-' scribed is yieldingly depressed, is urged downwardly b a. much stronger spring pressure than t at which holds the member The forwardly extending upper arm 2 of the frame 1 supports the cutting block 5 which is formed and arranged to separate the edge ofthe upper 27 from the material to be trimmed and to engage the outer surface of said material so that the cutter 4.

may out against it without touching the upper. See Fig. 3. The lower face of the cutting block is a little longer than the knife edge and about one-thirty-second of an inch wide. The cutting block is adapted to abut and guide a finished edge of the upper and in the operation of the. machine is usually the space between the cutting block and thelining 26 (Fig. 3) which is being trimmed so that the work may be fed beneath it; but

lining is not sufiicient to allow the upper 27 (Fig. 3') to pass between the block and upper face of the knife guide 17 and be cut by the knife. The axis of the knife bar (in which lies the mid-point of the knife edge) passes perpendicularly through the centre of the lowerf-face of the cutting block, and the knife edge registers with the medial longitudinal line of said face.

Owifig to the narrowness of the cutting block, and its shape, both side faces of it may be usedalternately as guides, it being understood that the knife edge cuts midway between and parallel to the two longer edges of the lower face. The lining at opposite sides of an opening in the upper can therefore be cut out without turning the shoe around, and openings which taper to a fine point may readily be operated upon.

The block 5 is secured in a collar 28- fixed to the lower end of a round bar 29 (the axis'of which is in line with the axis of the knife bar 6) which. is slidably and rotatabl mounted in a bearing 30 atthe forward emf of the upper arm 2 of the frame 1. The

upper end of the bar 29 is threaded and has.

screwed on to it a nut 31 the lower face of which rests on the upper face of a collar 32. By adjusting thisnut the distance of the lower face of the block 5 above the work supporting face of the knife guide 17 may be adjusted. A set screw 33 threaded through the upper end of the nut bears against the upper end of the bar 29 to lock the bar and nut in relative adjusted position. The nut 31 and collar 32 are positioned between plates 34 and 35 connected together by rods 36, 36. Bearing on the upper face of the plate 34 at each side of the screw 33 is a blade spring 37, fixed by screws 38, 38 to the frame 1 at its opposite end, which holds the cutting block down in its operative position. To raise the cutting block for the insertion of work beneath 4 it, a lever is pivoted on a horizontal pin 39, and its forward arm 40 extends under the lower face of the plate 35. A rearwardly extending arm 41 of the lever is connected to a tr'eadle so that depression of this treadle raises the cutting block; and, when the treadle is released, the cutting block is lowered by the blade spring 37 into operative position. The structure comprising the plates 34, 35 and the rods36 prevents the spring 37 from clamping the collar 32 between the nut 31 and bearing 30 and thereby preventing its free rotation as hereinafter described.

The knife and cutting block may b turned collectively about 180 degrees about their common axis; and, for this purpose,

' the collar 32 has formed on it a groove 42 to receive a steel band or chain 43. "The band is fixed by a pin 44 to the collar and extends rearwardly around a pulley'45, to

which it is also fixed by apin 46,- said pulley being fast to the upper end ofa. shaft 47. The shaft is substantially the axis of the knife and cutting block bar 29. and hasfixed to its lower end a'second pulley 48 to which is fastened b a-pin 49 a second steel band or chain 50 w ich passes around the latter pulley and extends forwardly and around the rotatable-member 13 in the lower arm, to which it'is fastened by a screw 51. The shaft 47 is 'rotatably mounted in a rocking bearing 52. which is supported by two cone-pointed screws, one

' of which is shownat 53, enteringconical recesses 54 in the bearing 52 about midway between thepulleys and one at'each side of By adjusting these screws the.

the shaft. bands'may be tightened, the bearing, shaft and pulleys tipping about the conical points of the screws 53 to compensate for differences in the length of the bands. The shaft 47 is of reduced diameter where it engages the bearing 52 and has fixed to it a hand lever 55 by which the cutting block and knife may be turned. The bearing 52 is held in place against the points of the screws 53 by the tension of the . bands 43, 50. By this mechanism the cutting block and knife may be turned in unison in'either di-- rection from their median operative position about their common axis. ThlS turning of the knife and block facilitates the cutting out of panels that would otherwise be prevented by interference between the shoe and the arm 3 of the frame of the machine.

In the operation of this machine on panel or cut-out work, the operator raises the block 5'.by the lever 40,41-and parallel to i places the work upon the lower arm 3 with the surplus lining under the cutting. block and the finished edge of the upperagainst the cutting block as shown by Fig. 3, so that one of two locating and guiding lips 60, 61 on the margin of the face of the block will project between the liningand the margin of the upper stitched thereto.

As he allows the block with the work positioned on it in this way to descend, the lining is brought within the rangeof the knife which cuts through it against the block. As alread indicated, the normal setting of the block is such that, while in the lowered position of the block, the knife can out against it, the block is held, when the knife is lowered, above the knife guide 17 a distance somewhat greater than the thickness of the lining, an adjustment easily secured by adjusting the nut 31 so that the block is in proper cutting relation to the knife at the top of the stroke of the latter, and adjusting the cap 18 so that it is at all times-below the face of the block a distance slightly greater the cutting block, The operator feeds the work manually while using the cutting block as a guide until the end or corner of the opening in the upper is reached when, if it is a narrow opening, he causes the trimming cut to return along the. other side of the opening by reversing the feeding mow ement and guiding the work then by the other side of the cutting block. If the cutting has to be taken around a curve or a corner, he turns the knife and block or the work, or doesboth, according to the nature of this corner or curve and the extent to which movement of the shoe is at that time limited by having the lower arm 3 within it or rendered undesirable by the manner in which he can conveniently hold, advance or view the shoe. j

Although the invention has been described as embodied in a particular machine, it should be understood that the invention is not limited in the scope of its application to the particular machine which has been shown or the particular. cutting operations described.

Having thus described our invention, what we claim as new and desire to secure by Letters Patent of the United States is 1. A machine for severing the lining which projects beyond an edge-of the upper of a shoe having, in combination, a work support arranged to project into a shoe and to support a portion of the lining thereof, a cutter mounted in and movable relatively to said support to enter the shoe, and means for operatin said cutter to sever the lining. 2. A mac ine for severing the lining which projects beyond an edge of the upper of a shoe, having, in combination, a work support arranged to engage the lining inside a shoe to support a portion thereof, a cutter mounted in and movable relatively to said'support to enter the shoe, and means for reciprocating said cutter inside the shoe to sever the lining.

3. A trimming machine comprising a cutting-bed formed and arranged to project between a marginal portion of the upper of a shoe and a layer of sheet material inside and conforming to said upper, a cutter arranged to cooperate with said cutting-bed to sever said sheet material progressively, and means arranged to operate said cutter. 4. A machine for severing the lining which projects beyond an edge of a shoe-upper, comprlsin a member having a face to engage the limng, said. member also having a lip to project between the lining and said edge of the upper and a dguiding portion arranged to run on said e ge, areciprocatory cutter arranged to operate against said face to sever the ining, and means for actuating said cutter. I

5. A machine for severing the lining which projects beyond wedge of the upper of a shoe, having, in combination, a work support arranged to enter a shoe, a cutter movably mounted in said support, means for reciprocatin said cutter tosever the lining, and'a yie dable cutting block against which said cutter operates.

6. A machine for severing the lining which projects beyond an edge of a shoe upper, having, in combination, a member arranged to engage said edge to guide the work, said member having a face to engage the lining, a cutter arranged to operate against said face to sever the lining, and means for reciprocating saidcutter.

7. A machine for severing the lining which projects beyond an edge of the upper of a shoe having, in combination, a cutting block having a face arranged to engage the lining, and a work-guiding surface arranged to abut said edge of the upper, a cutter arranged to out against said face to sever the lining, and means for reciprocating the the cutter cooperates, said block having a portion arranged to abut and guide an edge of the work, and means for operating the cutter.

9. A machine of-the class described having, in combination, a support adapted to enter a shoe, a cutter-movably mounted in said support, a yieldable cutting block with which the cutter cooperates, said block having a portion arranged to abut and guide an edge of the work, and means for reciprocating thecutter against said cutting block.

10. A machine of the .class described having, in combination, a support adapted to enter a shoe, a cutter mounted in the support, a cutting block with which the cutter in one-of which one gaging face engages 011% edge of'the V and during the other of which cuts the other gaging face engages the other edge of the V.

12. A machine for severing the lining which extends across an openinglin the upper of a shoe, a portion of whic opening is substantially V-shaped, having, in combination, a reciprocating cutter, and a cooperating cutting block having different faces ada ted to serve alternately as gages for the ang e-formin edges of the upper whereby the V-shape portion which is to be cut out of the lining may be severed by two progressive cuts during one of which one gaglng face engages one edge of the V and during the other of which cuts the other gaging face engages the other edge of the V.

13. A trimming machine comprising worksupporting means formed and arranged to pro ect into a shoe, a reciprocatory cutter nested in said means and arranged to chop the lining inside a shoe, mechanism arranged to reciprocate said cutter, and means arran ed to turn said cutter relatively to said mec anism while the latter is operating said cutter. r

14. A trimming machine comprising a fixture formed and arranged to project into a shoe, work-supporting means supported by and rotatable relatively to said fixture, a

trimming cutter nested in said means and arranged to operate inside the shoe to" sever the lining, mechanism arranged to actuate said cutter, manually operable means accessible outside the shoe and connected to said work-supporting means to turn the latter, and means arranged to communicate such turning of said work-supporting means to said cutter.

15. A machine of the class described having, in combination, a work support arranged to enter a shoe, a cutter mounted in said support, a cutting block arranged to cooperate with the cutter, means for rotatively adjusting said cutter and cutting block relatively to said support, and means for operating the cutter.

16. A machine of the class described having, in combination, a work support arranged to enter a shoe, a cutter mounted in said support, a cutting block arranged to cooperate with the cutter, means for turning said cutter relatively to said support, and means for reciprocating the cutter against said outtin block.

1 A machine of the class described having, in combination, a support arran ed to enter a shoe, a cutter mounted in sai sup port, a cutting block arranged to function against the exterior of the shoe, means for operating the cutter against said cutting block, and means for turning said cutter and cutting block collectively to follow various contours of the work.

18. A lining-trimming machine com rising a cutter adapted to function insi esa, shoe, means for guiding said cutter to func tion as specified. a cutting block arranged to cooperate with said cutter by on gmg 19. -A lining-trimming machine comprisagainst t e interior of the forepart of a shoe to sever the lining, a cutting block arranged to cooperate with said cutter by engaglng the exterior of the shoe, mechanism arranged to extend into the shoe to o crate said cutter, means arranged to exten into the shoe to-guide said cutter, and means arranged to turn said cutter and said cutting block collectively to various positions required by the work.

20. A machine of the class described having, in combination, a support shaped to enter a shoe, a cutter rotatably and reciprocably mounted in the support, means for reciprocating the cutter continuously, a cutting block, and manually movable means for adjusting the cutter rotatively while it is reciprocating.

21. A machine of the class described having, in combination, a support shaped to enter a shoe, a cutter rotatably and recipro cably mounted in the support, means for reciprocating the cutter continuously, a cutting'block, and means movable at will for turnin the cutter and the block collectively while t e cutter is reciprocating.

22. A machine of the class described having, in combination, a support shaped to enter a shoe, a cutter rotatably and reciprocably mounted in the support, means for reciprocating the cutter continuously, a cutting block, and a member manipulation of which rotates the cutter and the block in unison while the-cutter is reci rocatin 23. machine of the class escribe having, in combination, a cutter, a cutting block with which the cutter cooperates, and manually movable means for turning the cutter and I the block collectively about an axis which passes substantially through a point in the edge of the cutter.

24. A machine of the class described having, in combination, a cutter, a cutting block with which the cutter cooperates, and means for rotatingthe cutter and the block in.

unison about an axis which passes substantially through a point in the edge of the cutter.

25. A machine of theclass described having, in combination, a reciprocating cutter, a cutting block with which the cutter cooperates, said block having a surface arranged to abutan edge of the work, manually moving a reci rocatory cutter adapted to operate able means for rotating the cutter and the block collectively about an axis which passes substantially through a point in the edge of the cutter, and means for operating said cutter.

26. A machine of the class described having, in combination, a' support shaped to enter a shoe and to support a portion of the upper thereof, a cutter mounted in the support, means for reciprocating the cutter, a rod located above the cutter and having its longitudinal axis inline substantially with the middle point on the edge of the cutter,

a narrow cutting block carried by the rod and having its long axis substantially parallel ed to project into the shoe to support said sleeve therein, mechanism for reciprocating said cutter, and a work-supportin cap arranged on the upper end 0 said eeve and having an opening through which said cutter operates.

28. A machine of the class described having, in combination, an elongated support adapted to enter a shoe, a hollow sleeve rotatably mounted near the end of the support, a cutter mounted in the sleeve for rotation with and for reciprocation independently of the sleeve, and a cap for one end of the sleeve, said cap comprising an outer portion held from movement with respect to the sleeve and a revoluhle middle portion having a slot through which the cutter reciprocates.

In testimony whereof we have signed our names to this specification.

JOSEPH 'GOULDBOURN. j JOHN WILLIAM GODDARD.

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