US23984A - Improvement in single-thread stitches - Google Patents

Description

J. S. MeCUR.DY.- v Sewing Machine Single Thread Stitch. No. 23,984. 4 Patented May 10, 1859- N PETERs. Pholn-Lnhngraphen Nuslnngmn, 0. cv

UNITED STATES PATENT OFFICE.

JAMES S. MOOURDY, OF BROOKLYN, NEWV YORK, ASSIGNOR TO ELIAS HOWE, JR, OF SAME PLACE.

IMPROVEMENT IN SINGLE' THREAD STITCH ESJ Specification forming part of Letters Patent N0. 23,984, dated May 10, 1859.

T0 aZZ whom it may concern.-

Be it known that I, JAMES S. MOCURDY, of Brooklyn, in the county of Kings and State of New York, have invented a new and useful Single-Thread Interlooped Stitch for Sewing, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, in which Figure 1 represents an enlarged section of two pieces of cloth united by my stitch, and Fig. 2 is a top View of the thread of the stitch below the cloth in a slack condition, so as to show the peculiarities of the stitch. Fig. 3 represents a view of a needle and a pair of loopers suitable for forming the stitch, and Fig 4 is a plan of the loopers.

Theobject of my invention is to produce a single-thread interlooped stich which will be secure; and my invention consists'in a single thread interlooped stitch in which each successive loop is encircled by a complete coil of the thread of the preceding loop tightly drawn.

- The most convenient method of-producing my stitch is by mechanism whichmakes all the stitches alike, so that each loop a of the series is encircled by a coil, 1), of the thread of the preceding loop. The mechanism which I have devised for sewing in this manner consists of an eye-pointed needle to perforate the cloth and carry through it a loop of thread,

acting in combination with one or more suitable instruments beneath the cloth for acting upon the loop presented by the needle, ar-1 The most convenient means of forming the coil of my stitch is by means of two loopers, d and e, which are caused to revolve by suitable mechanism in opposite directions around the line of motion described by the needle, which is protruded from the opposite side of the cloth; When the needle, after descending through the cloth within the circles described by these loopers, commences to rise, the loop of' thread carried by it, being'choked at its neck in the cloth, spreads laterally from the needle as it rises, thus leaving an open space between the thread and the needle, into which the points of the loopers are moved. The loop-' ers are thencaused to revolve in the opposite directions, so as to coil the thread around the body f of the inner looper, e, where it remains until the needle, after having been withdrawn upward through the cloth, is pro jected downward to form the next stitch. The

needle then enters in the coil formed by the loopers, and the latter are turned back to deliver the coil upon the needle and' to be in the A single-thread interlooped stitch in which each successive loop. is encircled by a tight coil of the thread of the preceding 100p, substantially as described.

In testimony whereof I have hereunto subscribed my name.

7 JAMES s. Mccunnv Witnesses:

WM. H. Townns, W. H. PLUMMER.

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