US1351153A - Machine for removing surplus material - Google Patents

Description

B. n.. BUIIANAIII.

MACHINE FOR REMOVINGSURPLUS MATERIAL.

APPLICATION FILED IuLY 24, Isls.

1 35 l 1 5 3 Patented Aug. 31, 1920.

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mg. 4. f5 @ff/9%@ CII BUDD BOHANAN, OF BSTGN, liISSAGHUSETTS, ASSEGNGR, BY MESNE 'ASS'VIGN- MENTS, TO UNITED SHOE IVJCHINERY CORPORATIGN, F TERSON, NEW JER- SEY; A CORPDRATION OF NEW JERSEY.

MACHINE FOR REMUVING SURPLUS MATERIAL.

To all 'iu/1.0m t may concern:

Be it known that l, BUDD D. BOHANAN, a citizen of the United` States7 residing at Boston, in the county of Suffolk and State of Massachusetts, have invented certain lmprovements in Machines for Removing Sur plus Material, of which the following description, in connection with the accompanying; drawings, is a specification, like reference characters on the drawings indicating like parts in the several figures.

rlhis invention relates to cutting machines for use in the manufacture of boots and shoes and is herein illustra-ted in connection with a machine for removing surplus materialprojectingbeyond the seam 4which joins the quarters to the vamp of a shoe.

ln the manufacture of shoes, there are several thicknesses of material atgthe point where the lower forward portions of the quarters are attached to the throatof the vamp. For example in a lace balmoral boot, there may be in addition to the quarters and the va1np the linings of the quarters, the lacing); strips. the lacing strip stays and certain other pieces of reinforcing` material. The stitches which. attach the quarters to the vamp pass tl'iroug'h all of these articles so that a considerable amount of surplus material projects beyond the seam. This material. if allowed to remain., forms an objectionable bunch which makes the shoe more oi' less unsightly and uncomfortable. p

llithcrto this operation has been carried out by hanrh and the general object of the present Vinvention is to provide a. machine for performing; the operation.

@ne feature of the present invention comprises a machine for removing such surplus material having a knife, a support for the surplus material, and means for operating the knife and for causing; relative movement between the knife and support to sever said material.

It is desirable to cut ofi the surplus material as close as practicable to the scam but to avoid-cutting; the stitches. lTo this end another feature of the invention comprises in a machine of the class described a support havinga narrow end adapted to extend close Specification of Letters Patent.

Application filed .Tilly 24, 1916.

Patented Aug. 3f, 1520.

Serial No. 110,942.

to the seam and a supporting face inclined to the direction of cut of the knife, and means for presenting the work to the knife while maintaining' the seam out of the path of the cut of the knife. By properly locatingthe support and the knife, it is thus possible to cut close to the seam without in any case cutting into it.

These and other features of the invention, including;` certain details of construction and combinations of parts will be described in connection with an illustrative machine and pointed out in the appended claims. preferring. now to the accompanying draw ings. y

AFigure l is a perspective of a portion of a machine, in which the present invention is embodied Y 2 is a detail in perspective showing the surplus material placed upon the sup; port in position to he presented to the knife;

, Figli. 3 is a detail in section on the line 3 3 l showing` .the mechanism for moving the support.y the support being in position to receive the work;

Fig. 4s is a similar section showing the work support in position to cause the knife to operate upon the work. ln all the figures a guard which covers all of the knife except that portion opposite the work support has been omitted to promote clearness.

i The illustrative machine comprises a band knife 5 running); over drums of usual form, two of which are shown at 7, said drums heing; rotated by any suitable mechanism7 not shown. Fastened to the Vframe 9 of the machine is a bracket 1L through which as well as through bars 13 and knife guides l5 pass screw bolts 17 by which these parts are fa. tened to the frame of the machine. Between the knife guides l5 the worksupport is located? said support having; an inclined operative face with which the knife cooperates and narrow forward end adapted to eX- tend close to the seam as best shown in Fig'. 4. This worksupport is herein shown as composed of a hardened block 19 mounted on carrier 2l1 said parts beine' fastened together by a screw 23. The carrier has a fiat under face having an inclined forward end y 25, the flat face normally resting upon the bottom of a guideway formed by the flat upper face of the bracket 11, and the inclined end being adapted to engage and ride up an upwardly inlined face 27, formed on the bracket 11. The carrier 21 is held from sidewise movement by guides, one of which is shown at 29, said guides being fastened to the bracket l1 by screws 3l. A leaf spring 33 bears upon the upper side of the work support, tending at all times to hold it down but permitting it to rise into the position shown in Fig. 4L when moved toward the knife.

The carrier 2l and work support 19 are normally held in the retracted position shown in Figj by a coiled spring 35 fastened at its upper end to the bracket 1l and at its lower end to the end of the horizontal arm of a bell crank lever 37, said lever being pivoted -at 39 to a stationary lug 41 and having in its vertical arm a slot 43. Through this slot passes a pin i5 carried by ayoke 47 the stem of which passes through a slot in the bracket l1, through a bore in the carrier 2l and receives a nut 51 on its upper end. A treadle rod 53 pivoted to the bell crank lever at 55 is connected to a treadle, not shown. From the foregoing it will be evident that the work support isl normally held in the position shown in Fig. 3 and that depression of the t'readle will move it forwardly and upwardly into the position shown in. Fig. l so as to present the work to the knife.

As has been explained above, therpurpose of the present machine is to remove surplus material .which projects beyond a seam, and this surplus material. may consist of the ends or margins of various. articles such as linings, stays, reinforcements, etc. In order to simplify the drawings and the eXplana tion of the operation of the machine there has been shown an unlined. upper comprising two quarters l0() attached. to a vamp 200, a single reinforcing piece 300 having been. interposedV between them and.. the three stitched together, the reinforcing piece in the present case being a small piece of leather of Icircular outline located at ,the throat of the vamp at the. point of junction of the lower forward ends of the quarters. It is at this point that an objectionable,bunch' of surplus material accumulates in the, manufacture of the upper of a shoe, and ordinarily this material consists of the ends or margins-of several pieces of leatheror cloth.

In the operation of the machine the upper is turned` wrong side out and presented to the support 19 while said. support is in the position shown. in Fig. Y3 with the nairow forward` end of saidI support` extending close to the seam 50 and between the surplus material andy the vamp, said surplus material resting upon the inclined upper face of the support. The treadle is then depressed, whereupon the support is moved toward the knife and upwardly into the position shown in Fig. 4, and the projecting ends of the quarters 100 and the projecting end of the reinforcing piece 300 are severed by a draw cut on a bevel. Upon release of the trea'dle the support is returned to the position shown in Fig.

Although the invention has been set forth iii connection with a particular machine, it should be understood that the invention is not limited in the scope of its application to the particular machine shown and described. l

Having thus described my invention, I claim as new and `desire to secure by Letters Patent of the United States:

l. A machine for removing surplus mate'- i-ial projecting beyond a seam which joins4 two or more flexible articles, having in` combination,- a knife, Ymeans for operating the knife, a combined support for the surplus material and cutting. bed for the knife, and

combination, a knife, means for operating theY knife, a combined support for the surplus material and cutting bed for the knife,

and means for moving the support; into contact with the edge ofthe knife to cause the surplus material t0 be severed.

3', ifi machine for removing surplus material projecting VbeyondY a` seamf which joins two or more. flexiblearticles, having in combination, a knife, means-` for moving the knife in a manner to .producey a draw cut, a support forthe surplus material, and means for producing relative movement of approach between the knife and the support to cause the edge of the Vknife to pass through the surplus material into contact with the support. j 1

4. A machine for removing surplus material projecting beyond a seam which joins two or more flexible articles, having. in combination, a knife, means for operating the knife to produce a draw-cut, a support forA the surplus material normallyspaced from the knife, said support having. a narrow end adapted to be placed close to theseam,

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two or more flexible articles, having in combination, a band knife, means for operating the knife, a support for the surplus material, said support being normally spaced from the knife, treadle controlled means for moving the support into contact with the knife to sever the surplus material, and means responsive to release of the treadle for returning` the support to and holding it in its normal position.

6. A machine for removing surplus material projecting beyond a seam which joins two or more flexible articles, having, in combination, a knife, means for moving said knife in a manner to produce a draw cut, a support for the surplus material, said support being normally stationary and out of operative relation to the knife having a narrow end adapted to be placed close to the seam and a supporting face inclined to the direction of the cut to be made, and means for causing relative movement between said knife and support to cause the surplus material to be severed on a bevel.

7. A machine for removing surplus material projecting beyond a seam which joins two or more flexible articles, having, in combination, a knife, means for operating said knife, a support located in front of said knife in position to support the work with the locality to be cut below that portion of the edge of the knife to which it is to be presented, and means for raising said support and moving it into operative relation to said knife.

8. A machine for removing surplus material projecting beyond a seam which joins two or more flexible articles, having, in combination, a knife, means for moving said knife in a manner to produce a draw cut, a support located in front of said knife in position to support the work with the locality to be cut below that portion of the edge of the knife to which it is to` be presented, and means for raising said support and moving it into operative relation to said knife.

9. A machine for removing surplus material projecting beyond the seam which joins the top of the upper of a shoe to the vamp, having, in combination, a support normally stationary and out of operative relation to the knife having a tapered end adapted to be inserted between the surplus material and the vamp and a face which serves as a support for said surplus ma` terial, a knife, means for moving said knife in a manner to produce a draw cut, and means for producing relative movement between saidL knife and support to cause the knife to sever said material.

10. A machine for removing surplus material projecting beyond a seam which joins two or more flexible articles, having, in combination, an endless knife, means for op- @rating said knife, a support for the surplus material, said support being normally stationary and out of operative relation to the knife, and'means for moving the support into operative relation to the knife to cause the knife to sever said material and for returningthe support to normal position. v

ll. A machine for removing surplus mate ial projecting beyond a seam which joins two or more flexible articles, having, in combination, a knife, means for operating said knife continuously, a support for the surplus material, and treadle operated means for causing relative movement between said support and knife to cause the knife to sever said material.

l2. A machine for removing surplus material projecting beyond a seam which joins two ormore flexible articles, having, in combination, a knife, means for operating said knife, a support for the surplus material, said support being normally stationary and out of operative relation to the knife, and treadle operated means for moving the support into operative relation to the knife to cause the knife to sever said material.

i3. A machine for removing surplus material projecting beyond a seam which joins two or more flexible articles, having, in combination, a knife, means for moving said knife in a manner to produce a draw cut, a support for the surplus material, said support being normally stationary and out of operative relation to the knife, and treadle operated means for causing relative movement between said support and knife to cause the knife to sever said material.

lll. A machine for removing surplus material j irojecting beyond the seam which joins the top of the upper of a shoe to the vamp having, in combination, a knife, means for operating said knife, a support for said surplus material, said support being normally stationary and out of operative relation to the knife, a guideway in which said support is slidable, and treadle controlled means for sliding said support toward said knife.

l5. il machine for removing surplus material projecting beyond the seam which joins the top of the upper of a shoe to the vamp having, in combination, a knife, means for operating said knife, a support having a narrow end adapted to be inserted between said surplus material and said vamp, said support being normally stationary and out of operative relation to the knife, and means for presenting the material thus supported to the knife while maintaining said seam out of the path of the cut of the knife.

16. A machine for removing surplus material. projecting beyond the seam which joins the top of the upper of a shoe t0 the movement Ah'c-tvveen the cutter vand the supvmp having, in' combination, a support port t0 cause th'e edge of the Cutter t0` pass having a tapered end adapted to'he inserted through the surplus material into Contact 10 y between the surplus material and the vamp With the support.

` and a face which serves as va support for In testimony whereof I herve signed my said surplus material Vand as a cutting bed,4 name to this speccation'. e cutter, and means for producing relative `BUDD D. BQHANAN.

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