US73759A - Improvement in gauge poe sewing-machines - Google Patents

Description

T. s. SCRANTON.

Sewing-Machine Guide.

Patented Jan. 28, 1868.

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T. S'. SCRANTON, MADISON, CONNECTICUT.

Letters Patent No. 73,759, dated January 28, 1868. I

IMPROVEMENT'IN GAUGE FOB. SEWING-MACHINES.

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TO ALL WHOM IT MAY CONCERN:

Be it known that I, T. S. SCRANTON, of Madison, in the county of New Haven, and State of Connecticut, have invented a new Improvement in Gauge for Sewing-Machines; and I do hereby declare the following, when taken in connection with the accompanying drawings, and the letters of reference marked thereon, to be a full, clear, and exact description of the same, and which said drawings constitute part of this specification, and represent, in-

Figure 1, a top view,

Figure 2, a front view,

Figure 3, a view from the under side, looking up, and in Figures 4 and 5, detached parts.

This invention is designed as a guide for the work in sewing-machines, and commonly called self-sewers, and consists in the peculiar construction of the guide, whereby it may be set upon the work with equal pressure upon the whole surface, and detached from the gauge, so that the same gauge to which the guide is applied answers for other purposes as a gauge upon the sewing-machine.

To enable others to construct my improvement, I will proceed to describe the same, asillustrated in the accompanying drawings.

A is the gauge, of ordinary construction, preferring to make a slotted tail-piece,13, separate from the gauge, and pivoted thereto at a, so as to turn to the right or left, as denoted in fig. 5, to accommodate itself to different sewing-machines. In the upper surface of the gauge, I form a dove-tail groove, d, from which projects an arm, C, fitting the groove on the gauge, and so as to be inserted therein, or removed therefrom, as occasion may require. To the outer end of the arm C, I fix a thin sheet-metal spring, D, curved so as to give elasticity to the outer end, as seen in fig. 2, and extending inward nearly to the-gauge A, where it is spread, as seen in fig. 3. In the under surface of the said spring, I form several corrugationmf, inclining inward and toward the needle, as denoted in broken lines, fig. 1, and as seen in figv-3', and through the arm C, I arrange a set-screw, E, which bears down on to the spring D, as denoted in fig. 2. The gauge is adjusted to the sowing-machine in the usual manner, so as to bring the guide in the proper position, then the Work is placed beneath the spring D, and the screw E turned down to give the requisite pressure thereon, the diagonal corrugations tending to draw the work inward toward the gauge, so that the work passing inward to the machine is always held in the proper position. i a

The peculiar formation of the spring D, at its attachment to the arm C, tends to equalize the pressure over the whole surface of the guide. If the spring extended directly down from the arm C, the pressure at the inner end would be the only adjustable part of the pressure, whereas by curving or elongating the spring, as denoted in fig. 2, elasticity is given to the guide at that point, so that an even pressure is maintained. The screw E may be inserted through either of the several holes formed in the arm C, if such an adjustment is required. On the arm C, and near its connection with the gauge, Ifind it. advantageous to reduce the thickness of the arm, as at F, fig. 2,'as additional elasticity is thereby gained for the outer end of the guide.

By my invention, the guide is detachable from the gauge, so that the same gauge answers all purposes on the machine. I

Having therefore thus fully described my invention, what I claim as new and useful, and desire to secu e by Letters Patent, isi I The arm C, combined with the elastic guide D, the said guide being attached to the arm C, and the said arm made elastic at or near its connection with the gauge by the reduction of the said arm, substantially as herein set forth.

T. S. SCRANTON! Witnesses Joan E. EAR-LE, A. J. Tmnrrs.

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