US1024271A - Cloth-cutting machine. - Google Patents

Description

A. MERHIGB & G. P. GOOKSQN.

CLOTH CUTTING MACHINE. APPLICATION FILED NOV. 21, 1911,

1,024,271 Patented Apr. 23, 1912.

1 AWN/5V8 COLUMBIA PLANcuRAPH 00.. WASHINGTON. n. c.

UNITED STATES PATENT OFFTQE.

AMIN MERHIGE AND CLARENCE FRED COOKSON, OF NEW YORK, N. Y.; SAID COOKSON ASSIGNOR- TO SAID MERHIGE.

CLOTH-CUTTING MACHINE.

Specification of Letters Patent.

Patented Apr. 23, 1912.

Application filed November 21, 1911. Serial No. 661,525.

T 0 all whom it may concern:

Be it known that we, AMIN MERHIGE and CLARENCE F. CooKsoN, both citizens of the United States, and residents of the city of New York, borough of Brooklyn, in the county of Kings and State of New York, have invented a new and Improved Cloth-Cutting Machine, of which the following is a full, clear, and exact description.

The object of the invention is to provide a new and improved cloth-cutting machine, arranged to permit of conveniently following curved lines in cutting the material, to permit of readily adjusting the presser foot relative to the thickness of the material to compensate for unevenness in the thickness,

' and to insure proper entering of the base under the material to be out.

In order to accomplish the desired result, use is made of a base, and a standard carrying the cutting mechanism and mounted to turn on the base on a vertical axis.

A practical embodiment of the invention is represented in the accompanying drawings forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the views.

Figure l is a side elevation of the clothcutting machine; Fig. 2 is a front end elecation of part of the same; Fig. 3 is a like view of the same with the hinged bearing for the presser foot swung into open position; Fig. 4 is a plan view of the same; Fig. 5 is an enlarged cross section of the cutter in position on the reciprocating cross head; Fig. 6 is an enlarged sectional side elevation of the locking device for the presser foo-t; Fig. 7 is a sectional plan view of the cloth-cutting machine on the line Z-7 of Fig. 1; Fig. 8 is an enlarged sectional side elevation of the front end of the base in position on entering underneath the material; Fig. 9 is an enlarged cross section of the base on the line 9-9 of Fig. 7 and Fig. 10 is an enlarged sectional side elevation of the base and the bearing of the standard on the base, the section being on the line 10-10 of Fig. 7

On the base A of the cloth-cutting machine is mounted to turn on a vertical axis a standard B, provided at its upper end with a stud B and a handle O for moving the machine about. On the head B is mounted a motor D, of any approved construction, and connected by the usual mechanism E with a cross head F to which the cutter G is secured, the cutter being mounted to slide up and down in suitable bearings arranged on the front end of the standard B. The cross head F is mounted to slide in a bearing having a fixed member H on the head B, and a gib H movable on the said head and provided with a notch H engaged by the head of a screw I screwing in the under side of the head B. Thus when the cross head F gets loose in the bearing, that is, between the member H and the gib H then the operator on adjusting the screw I can move the gib H in the direction of its length to take up the wear, it being understood that the outer face of the gib H is beveled and engages a corresponding bevel H 011 the head B.

On the front end of the head B is ar rangeda bearing J hinged at J to the head B, to permit of swinging the said bearing J into an open position to gain access to the gib H for proper adjustment thereof, as above explained, the bearing J, however, normally overlying the front of the gib H vand the member H, and being secured in this position by a screw J as plainly indicated in Fig. 2. The bearing J is engaged by the shank K of the presser foot K adapted to rest on top of the material to be cut by the cutter G, and the said shank K is slidable up and down in the bearing J and is normally held in a locked position by rings L arranged on the top and bottom of the bearing J. The opening of each ring L is approximately of the size of the di' ameter of the shank K so that when a ring L is in an inclined position it looks the shank K against movement in the bearing J. The rear end of each ring L rests on the bearing J and the front of the ring is pressed on at the under side by a pin L mounted to slide in the bearing J and pressed on by a spring L so as to normally hold each pin L in an outermost position and the ring L in an inclined position. Each pin L is provided with a stop pin L extending in a slot L arranged in the hearing J so as to limit the up or down sliding movement of the pin L.

hen it is desired to release the shank K and with it the presser foot K it is only necessary for the operator to press on the front raised ends of the rings L to release the shank K and thus allow the same to drop with a view to engage the presser foot ,K with the top of the material to be cut.

The shank K of the presser foot K is provided with a sleeve K into which fits slidingly the polygonal arm K of the presser foot K, and the said arm K is pressed on by a spring K held in the sleeve K to allow the presser foot K to yield on its shank K. The arm K is provided with a stop pin K extending through aslot K arranged on the sleeve K to limit the up or down sliding movement of the arm K in the sleeve K Now when the presser foot K is engaged with the material the operator presses the shank K downward suhiciently far to cause the arm K to slide up or down in the sleeve K to place the spring K under tension, and when the presser foot K moves onto a lesser thickness of the material then the spring K forces the presser foot K downward to properly engage the material at the uneven thickness, thus insuring at all times a uniform pressure on the material during the cutting operation.

The lower end of the standard B is pro vided with a disk B having an annular flange B (see Fig. 10) engaging an annular guideway or a bearing A formed in the base A, and between the disk B and the base A is arranged a ball bearing N so that the disk B and with it the standard B can readily turn in the base A. A retaining ring 0 is secured in a recess in the top of the base A and projects over the flange B so as to hold the said flange in its bearing A, at the same time allowing ready turning of the standard B on the base A. By the arrangement described, the operator having hold of the handle C can readily push the machine along and at the same time turn the standard B on the base A to permit convenient cutting of the material along the curved lines as it is not necessary to turn the base A with the standard B. The standard B can be locked to the base A at any desired position, and for this purpose use is made of a locking bar P mounted to slide vertically in suitable bearings P arranged on the standard B. The lower end of the pin P is adapted to engage one of a series of recesses 0 formed in the face of the retaining ring 0 to lock the standard B against turning on the base A. The pin P is provided with an arm P pivotally connected by a link P with a lever P arranged below the handle C so that the operator can conveniently take hold of the lever P and swing the same upward with a View to raise the pin P and thus disengage the same from the corresponding recess 0 to allow of turning the standard B on the base A. A spring B is coiled on the rod P intermediate the upper bearing P and the arm P, so as to normally force the rod P downward into engagement with a recess 0 on the operator releasing the lever P In order to insure an easy traveling of the base A over the cutting table, use is made of roller Q (see Fig. 9) journaled in bearings Q, attached to the under side of a disk Q provided with a flange Q engaging a bearing or guideway A formed in the under side of the base A. A retaining ring Q is secured in a recess in the under side of the base A and engages the flange Q so as to hold the disk Q is posit-ion on the base A. A ball bearing R is interposed between the base A and the disk Q so that the latter can freely turn, thus carrying the rollers Q around according to the direction in which the base A is pushed at the time. The rollers Q extend a short distance below the base A so as to hold the under side thereof a distance above the cutting table, and the front of the base A is provided with a point A hinged at its rear end at A on the base A, so as to permit the point A to swing downward into contact with the cutting table to readily pass under the lowermost layer of the material to be cut by the cutter G (see Fig. 8

From the foregoing it will be seen that by the arrangement described the material can be readily out along straight or curved lines especially as the standard B carrying the cutting mechanism can be turned on a vertical axis on the base A and the base A can be readily pushed forward over the cutting table in any desired direction owing to the mount-ing of the rollers Q, on the turntable disks Q It will also be seen that the presser foot K can be readily adjusted and locked in place on correspondingly manipulating the rings L, and convenient access is had to the gib H for adjusting the latter to take up the wear between the cross head F and its bearing on swinging the bearing J into an open position and with it the presser foot Having thus described our invention, we claim as new and desire to secure by Letters Patent:

1. A cloth-cutting machine, comprising a base, a standard mounted to turn on the said base, cloth-cutting mechanism mounted on the said standard, and a manually-controlled locking bar mounted to slide on the standard for locking the said standard against turning on the said base.

2. A cloth-cutting machine, comprising a base having a circular'guideway and a ball bearing, a standardhaving a disk at its lower end, the disk being provided with an annular flange fitting into the said guideway and the said disk resting on the said ball bearing, a retaining ring on the said base and engaging the said flange and provided on top with spaced recesses, and a manually-controlled locking bar mounted to slide on the said standard and adapted to engage one of the said recesses.

3. A cloth-cutting machine having a base,

disks mounted to turn on the under side of the base and provided at the under side with rollers to hold the base a distance above the cutting table, the base having a pivoted front point adapted to rest with its terminal on the cutting table to readily pass under the material on the said table.

4. A cloth-cutting machine having a base, disks mounted to turn on the under side of the said base, rollers carried by the said disks, and ball bearings between the base and the said disks.

5. A cloth-cutting machine having a base provided at the under side with an annular guideway, a disk having an annular flange engaging the said guideway, a retaining ring on the under side of the base and engaging the said flange, a ball bearing between the disk and base, and a roller journaled on the under side of the disk.

6. A cloth-cutting machine, comprising a base, a standard rising from the base and having a head, a cutter mounted to slide on the said standard, a cross head carrying the said cutter and mounted to reciprocate in the said head, a motor on the said head and connected with the said cross head, a hearing for the? said cross head in the said standard head, the said bearing having a fixed and an adjustable member, a presser foot, and a bearing for the said presser foot. and hinged to the said standard head, the said bearing normally overlying the front of the adjustable and fixed members of the bearing for the cross head.

7 A cloth-cutting machine provided with a standard having a head, an adjustable bearing mounted in the said head, a cutter cross head mounted to slide in the said bearing, a presser foot, and a bearing for the said presser foot and hinged on the said standard head the said bearing normally overlying the bearing for the cross head.

8. A cloth-cutting machine provided with a standard having a head, an adjustable bearing mounted in the said head, a cutter cross head mounted to slide in the said hearing, a presser foot, a bearing for the said presser foot and hinged on the said standard head the said bearing normally overlying the adjustable bearing for the cross head and adapted to be swung with the presser foot into an open position to permit of adjusting the said adjustable bearing, and

means for locking the said bearing for the presser foot in closed position on the said standard head.

9. A cloth-cutting mechanism provided with a bearing, a presser foot having a shank slidably engaging the said bearing, and a spring-pressed locking ring through which passes the said shank, the ring resting at the rear on the said bearing, and a spring-pressed pin pressing the front end of' the ring to hold the latter normally inclined to lock the shank in place.

10. A cloth cutting machine, comprising a base, a standard mounted on the base and having a head, a cutting mechanism mounted on the standard, a bearing on the head, a presser foot having a shank slidably engaging the bearing, locking rings through which the said shank passes, and means engaging the locking rings to hold the latter normally in locking position on the said shank.

11. A cloth cutting machine, comprising a base having a circular guideway and a ball bearing, a standard having a disk at its lower end provided with an annular flange fitting in the said guideway, the said disk resting on the ball bearing, a retain ing ring secured to the base and engaging the said flange, a cutting mechanism mounted on the standard, and a locking device for locking the standard against turning on the base.

12. A cloth cutting machine, comprising a base, a standard on said base having a head, a bearing on the said standard head having a fixed member, and a member movable on the head and having its outer face beveled to engage a corresponding bevel on the said standard head, the said movable member being provided with a notch, a screw screwing in the said standard head and having a head engaging the notch in the movable member of said bearing to adjust the latter, a cutter, and a cross head mounted to reciprocate in the said bearing and carrying the said cutter.

13. A cloth cutting machine, comprising a base, a standard mounted to turn on the base and having a head, a cross head mounted to reciprocate in the said standard head, a cutter carried by said cross head, a motor on the said standard head and connected with the cross head, a presser foot having a shank, a bearing on the standard head slidably engaged by the shank of the presser foot, means for locking the said shank in place, and means for locking the said standard against turning on the base.

In testimony whereof we have signed our names to this specification in the presence of two subscribing witnesses.

AMIN MERHIGE. CLARENCE FRED COOKSON.

Witnesses PHILIP J REILLY, H. C. KRICKMIER.

fiopies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G.

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