US1070133A - Cutting-machine. - Google Patents

Description

C. E. HOWE.

l CUTTING MACHINE. APPLIUATION FILED Arms. 1912.

Patented Aug. 12,1913

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CHARLES E. HOWE, OF ROCHESTER, NEW "YORK, ASSIGNOR TO .UNITED SHOE MACHNERY COMPANY, 0F PATERSON, NEW JERSEY, A CORPORATION 0F NEW JERSEY.

CUTTINGMACHINE.

Specication of Letters Patent.

resented aw. 12,1913.

Application filed April 3, 1912. Serial No. 688,240.

#To all 'whom t may concern.'

Be it known .that l, CnAnLns E. Howie, a citizen of the United States, residing at Rochester, in the county of Monroe and State of New York, have invented certain Improvements in Cutting- Machines, of which the following description, in connee tion with the accompanying drawings, is a specification, like reference characters on the drawings indicating like parts in the several figures.

This invention relates to cutting machines and particularly to means for maintaining the material to be cut in such machines in proper position for the cutting opera-tion or operations.

The invention is herein shown as applied to a clicking machine, the illustrated em.- bodiment of the invention being especially adapted for preventing the cloth or other material from which blanks are to be cu-t from heilig drawn over the edge of the cutting bedof a machine ot this type. It will be understood, however, that the invention is not restricted to use with clicking machines.

In cutting cloth for linings or in cutting any other material which is of substantially uniform texture throughout it is customary to superpose several. layers ot' material so that a number of blanks may be cut at each operation. When a number of layers ot material are thus superposcd, it is important that there be no relative slipping of the layers, particularly after one or more cuts have been made through the layers. Moreover the cloth or` other material is usually of a length considerably greater than any of the dimensions of the cutting bed of' the machine in which it is to be. cut,` and it is therefore important to prevent the weight of the material which projects beyond the edge of the bed from pulling the material which is on the bed overthe edge. One of the most common practices is to stick awls through the material into the cutting block. lf the material is comparatively wide a number of awls are required and it takes considerable time to so place them that they will hold the material properly and also to remove them when the material is to be moved.

One object of the invention, therefore, is

` to 'provide convenient holding or clamping means which will hold the materialagainst movement over the bed or block during the operations upon the part of the material which is on the bed or block and will also eitectually prevent relative movement to each other of the different layers.

Another object of the invention is to provide holdinf:lf or clamping means which will be so locatec with respect to the cutting bed or block that it will not interfere with the cutting operation Aupon any part of the bed or block.

Other objects of the invention areto provide means for effecting easily the clamping and unclamping operations, to provide means 'for protecting the finished surface of the material :trom injury by contact with the block or other parts of the machine, to provide means for receiving the scraps which will be located in convenient relation to the cutting and clamping means, and-in general to provide a construction which can be manufactured cheaply and which can be applied readily to any of the Well-known types of cutting machines.

In the accompanying drawings,-Figure .i is a perspective view of a clicking machine to which the present invention has been applied; and Fig. 2 is adetail section illustra-ting the manner in which thematerial to be cut and the protective material are passed between the clamp members.

The clicking machine herein shown is of' Well-known construction, being extensively used in the manufacture of boots and shoes. In this machine a cutting block 2 is supported upon a table 4 carried by a bracket attached to the trame 6. The material to be cut is spread out on the block 2. A die having the outline of the blank to be cut. is then placed uponthe material and the presser member 8, `constituted by a swinging arm attached to a post 1Q, is swung into position over the die after which theoperator depresses the handle l2 which he has grasped to swing the presser member into position, thereby actuating clutch through which the fly wheel la isfv connected to the drivingsheft andthrough suitable connections reeiprocates'fthe post 10 to cau'sethe presser member to perform the cutting oper. ation.

The various details of construction ofthis machine are more fully shown and described in United States Letters Patent No. 921,503, to Arthur Bates, dated May. 11, 1909; No.

:tie

1,004,757 to H. H. Eaton, dated Oct. 3, 1911;

and No. 1,011,908 to Arthur Bates, dated Dec. 19, 1911.

The principal use made of this machine is i'n cutting upper leather for boots and shoes.

It is, however, used to a considerable extent for cutting other material, such as linings for boots and shoes, and when the material which is to be cut is of substantially uni- 1 form texture throughout it is customary to;`

superpose several layers of material and Y means has beenprovided. v:This means com-l prises upper and lower clampfmembers 16 and 18 respectively, which may conveniently consistv of cylindrical tub/ing, the upper clamp "member inthe villustrated constuction".being stationary and 'beingv attached at .its ends to latral supports 20 and 22 which may IA"conveniently consist of tubing of the same diameter asvv the tubing used for/the clamp members 16 and 18, the member 16.

` being, -atta `-ized to the supports 20 and 22,

preferably yy sleeves 24 and 26 which are rigidly con'nned upon the supports 2O and 22 f and serve as stops for other sleeves 28fand BOslidably mounted upon the supports 2O and 40 22gand carrying the moyable clamp member V18;..4 The.' movable clamp-'member 18 is normally'zyieldingly pressed into' clamping Irelation to ltl'ie stationary clamp member 16 by springs 82 and 34'vs'urrounding the respective lsupports 2O and 2,2"anti eating respectively at their' u p/erv dsjagairstjthe sleeves 28 and BO'afi at theirlower ends'fagainst other "1 -sleeves G/frind 38 rigidly confined upon the` supports 2O and 22. V :"V In order to separate thef'elamp members 16 and 18 to permit the material to be inserted between them orto be drawn through thelamp, means is provided for depressing ".,the-j movable member 18 against the tension .5i/fof the springs'32 and 34. The illustrated means comprises a cross-bar 40, attached at its ends by links 42 and 44 to ears upon the sliding sleeves 28 and 80, and a treadle 46 pivoted in a stand 48 which may be attached to the Hoor and connected by a chain 50, or any other suitable means, to the cross-bar 40. The chain 50de illustrated since it forms a connection which can conveniently be adjusted to di'erentheigbts of cutting blocks. The lateral supports 20 and 22 preferably 15 To prevent relative slipping of the differ-4l Aenter sockets 52 and 54 in stands which may the cutting block. The usual practice/is to insert a piece of paper under the cloth. ln order to provide convenient means for hold- .ing the paper or other protective .material a rod titl adapted to receive a roll of paper has been provided with supports 62 and G4 which may be clamped to a cross-bar (i6 connecting the sleeves 36 and 88. The rod 60 35 may be clamped to the bar 6G in different positions fof adjustment about said bar whereby the position of the rod/60 may be adapted to the size of the roll of paper, to t. the position of the clamp with respect to the cutting block, and to the position of the container' 68 or othevnmeans for holding the cloth or other material to be cut. In Fig. 2 is shown the mann/er of using the clamp, the cloth being passed in front of the movlable clamp member 18 and then between the /clamp members, and the paper being passed between the members in such manner that it comes beneath the cloth.upon the cutting block.

To provide convenient means for receiving the scraps which are left from' the.cutting operation, a bag holder 70 is arranged at one side of the bed, the illustrated bag holder comprising a rod bent into substantially semicircular form and having an eye -which 'receives one of the clampingrv .bolts 72 of the cutting block, the rod being'provided withpins 74 over. which the bag 7G may be hooked.

It will be noted that the clamp herein shown is located so that the'portien of the material which is engaged/thy it lies in a plane below the plane of the material which is upon thebed. This is the preferable arrangement of the clamp since, although it is obvious that thematerial-elamped might lie in the same plane as the material upon the surface of the bed witlfout any disadvantage other than-having the' clamp project above the surface of the bed, it would be quite objectionable to have the material clamped in a plane above thatuponthe bed since it would tend to lift/tlm material on the bed slightly, and any-pressure `upon the material between the clamp and the edge of the bed would tend topf move the material over the surface of the bed. To avoid any possibility of clamping the material so that the portion clamped will lie in a plane'above the plane of that on the bed and also to have the clamp so located that it will not interfere with any operations upon the bed, it is preterable to locate it as shown so that it will clamp the material in a plane below the surface ot the bed or below the plane in which the material upon the bed lies and will itself not project above the surface of the bed.

I-laving described my invention, what I claim as new and desire to secure by Letters Patent of the United States is l. In a machine ot the class described, the combination with a bed for supporting material to be cut and a presser member moi'- able into engagement with a die supported upon saidmaterial, ot means for clamping during the cutting operation a portion of.` said material that projects beyond the edge i ot' the bed.

2. In a machine of the class described, the combination with a bed tor supporting material to be cut and la presser member movable toward the bed and adapted to engage a movable die upon the bed, of means t'or clamping during the cutting operation a portion of said material tnatI projects beyond the edge of the bed, said means being constructed to operate outside the edge ot the bed and having provision for vertical adjustment to adapt it to beds of different heights.

In combination, a cutting bed, a presser member adapted to cooperate with substantially all portions of the bed to ett'ect the cutting operation, and means outside the bed for clamping-the material to be cut which projects beyond the edge of the bed comprising clamping members extending entirely across the width of the material,

l. ln combination, a cutting bed, a presser member adapted to coperate with subst-antially all portions of the bed to effect the cutting operation, and means outside the bed for clamping the material t-o be cut which projects beyond the edge of the bed, and treadle operated means t'or controlling said clamping means.

5. In combination, a cutting bed, a cooperating prcsser member movable to engage. a die wherever located on said bed, means outside the bed for clamping the material to be cut which projectsbeyond the edge ot' the bed comprising an u'pper stationary clamping member and a. lower mov` able elainping member yieldingly maintained normally inclamping relation to said upper clamping member, and vmanually con- -trolled means :tor separating said members.

G. The combination with a cutting bed and means outside the bed for clamping the material to be out which projects beyond the edge of the bed, of means tor supporting a roll ofpaper or other protect-ive material in position to pass through the clamping means below'the material to be cut.

7. In a machine of the class described, the

combination with a bed and a coperating presser member adapted to engage a movable die wherever located on said bed, of means outside sai'd bed for clamping the material to be cut which projects beyondv the edge'ot the bed, said means extending the entire length of said bed.

8. In combination, a cutting bed, a presser member movable into coperative relation to substantially all portions of the bed, and

means outside the bed for clamping the mai terial to be cut which projects beyond the edge ot the bed, said means comprising lateral supports, a stationary clamp member connecting said supports, a movable clamp member guided atits ends upon said supports, and a spring'upon each support.

operating to press said movable clamp member toward said stationary clamp member.

9. The combination with -a cutting bed and means for clamping the material to be cut which projects beyond the edge of the bed, of adjustable means for supporting a roll of paper or other protective material in position to pass through the clamping means below the material to be cut.

l0. In combination a cutting bed and' means outside the bed for clamping the ma terial to be cut which projects beyond the edge of the bed, said means comprising vertically adjustable lateral supports, a stav With a die Wherever located on the bed, and 'Y means outside the bed for clamping during the cutting operation the material to be cut which projects beyond the edge of the bed, said means being so located With respect to t-he surface of the bed that the portion of the material clamped will lie in a plane below the plane of the material upon the bed.

In testimony whereof I have signed' my name to this specification in the presence of two subscribing Witnesses.

CHARLES n. Hovvn.

Witnesses:

GEORGE Genuss, GEORGE CLARK.

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