US156418A - Improvement in machines for sewing sacks or bags - Google Patents

Description

v H. PQGARL'AND. v Machines for Sewing Sacks and Bags.

04 ,156,413, Pa tented Nov. 3,1874.

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THE GRAPHIC CO. FHOTO'LITHESJL 4-! PARK PLACE N.Y.

UNITE-n STATES PATENT O FIcn HOWARD P. GARLAND, OF SAN FRANCISCO, CALIFORNIA, ASSIGNOR OF ONE-THIRD HIS RIGHT TO ANDREW J. GOVE AND ISAAC FRIED- LANDER, OF SAME PLACE.

IMPROVEMENT IN MACHINES FOR SEWING SACKS ORBAGS.

Specification forming part of Letters Patent No. 156,418, dated November 3, 1874; application filed I August 22, 1874.

To all whom it may concern.-

Be it known that I, HOWARD P. GARLAND, of San Francisco, county of San Francisco and State of California, have invented an Improved Machine for Sewing Sacks, Bags, Carpets, and for other like purposes; and I do hereby declare that the following is a full, clear, and exact description of the same, so as to enable others skilled in the art or science to which it most nearly appertains to make and use the said needle and sewing-machine, reference being had to the accompanying drawings, and to the letters marked thereon.

This invention consists mainly in the novel construction of the needle, it being spiral in form, or not unlike that of a cork-screw, with a continuous groove around the outer trend or spirals, in which to wind the thread, and a spring at or near the point, with which to confine the end of the thread.

A slotted guiding-case is provided, in which the needle operates, along which is attached a plate, and around which a belt with pins is caused to operate, to keep the sack in position, all of which will hereinafter more fully appear.

Referring to the drawings forming a part of this specification, Figure 1 represents a plan of my device, with a portion broken away to show the trend of the needle. Fig. 2 is a plan of a portion of a sack, showing the stitch. Fig. 3 is a side view, showing the belt or band with pins in position; Fig. 4, a front-end vertical section; Fig. 5, an enlarged section of the needle and spring with thread in position. The needle or is connected to an arbor, b,

and is operated by a belt on the pulley c in a horizontal manner in the case A. Around the outer circumference or trend of the needle,

' from the heel to near the point, is made a groove, (1, of sufficient depth to receive the twine or thread, which groove terminates under a spring, 6, which confines the end of the thread f, when, by turning the needle in an opposite direction and guiding the thread, the groove is filled from-end to end. The case A,

in which the needle operates, is confined to a table, and is provided with a slot, h, for introducing the end of the thread under the spring and guiding it in filling the groove. From the case extends a spring-plate, z, provided with end rollers j, around which a belt, is, is caused to pass. This belt is provided with pins" K K which travel with the same velocity as that of the needle or screw and cloth. Those represented at K are vertical, and pass through the cloth and into the guiding-slot K in the bed-plate, while the pins represented by K being placed at intervals along the edge of the belt and at right angles with it, project so as to follow the trend of the screw both in the forward and reverse motion of the needle, and prevents the cloth, with the aid of the hand, from being unduly drawn toward the needle, in which case a crooked and uneven stitch would be made along the edge of it. The pins K also serve to press and keep the cloth down upon the plate at the starting-point as well as in sewing. A lip, Z, at the end of the frame or plate serves as a guide to the cloth at its initial or starting point and in sewing. I

In its operation, the needle being threaded, as above described, one end of the cloth is placed under the lip Z, in close proximity to the point m, and the needle set in motion in a reverse direction from that of the operator, and enters the cloth in the manner of a screw, carrying the thread with it until the desired length of seam has been obtained, when the end of the thread is removed from under the spring 6, and two coils loosened from the spirals at the opposite end; then a reverse motion is given the needle, which tightens up the thread the whole length of the seam.

In this operation, however, and in order to make sure the taking up the slack of the thread and tighten the stitch, a deeper cut, 0, is made in the groove, into which the opposite end of the thread is drawn in winding, and in this wise the bi ght of the thread is had around the spirals composing the needle. Thus the overseaming is completed, and a stronger and. more even stitch, g, is had than if it were made by hand-sewing. I

This needle can be operated in a very rapid manner by a common treadle with a belt-connection over the pulleys on the arbor b.

In practice, it is fully believed that twice the number of sacks can be sewed in a given time with this machine than by the ordinary devices now employed.

It should here be observed, however, that the needle may be constructed of various lengths yet the entire length will not be available on account of the slack caused by unwinding the thread.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. The combination of the spiral needle, having a groove, as described, and the feeding-belt, as and for the purpose set forth.

2. The spiral needle, provided at its end with the spring for holding the end of the thread in position, and with a groove or retention-guide, as set forth and specified.

3. The slotted case A, in which the spiral needle operates, in combination with the said needle, when constructed substantially in the manner as herein set forth and specified.

In witness whereof I have hereunto set my hand and seal.

HOWARD P. GARLAND.

Witnesses:

G. W. M. SMITH, PHILIP MAHLER.

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