US83219A - Improvement in tucking device for sewing-machine - Google Patents

Description

R. H. sT; JOHN; Y Sewing Machine Tucker.

Patented Oct. 20, 1868 N- PETERS, PHOTO UNITED STATES PATENT OFFICE.

It. H. ST. J OHN, OF BELLEFONTAINE, OHIO.

IMPROVEMENT IN TUCKING DEVICE FOR SEWING-MACHINE.

Specificatioiiforming part of Letters Patent No. 83,219, dated'October 20, 1868.

To all whom it may concern:

Be it known that I, R. H. ST. JoHN,of Bellefontaine, in the county of Logan and State of Ohio, have invented a new and Improved Tuck-Folder for Sewing Machinery; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, making a part of this specification, in which- Figure 1 is a perspective view of the instrumentcomplete. Fig. 2 is a side elevation of the instrument, showing, by the aid of red lines, the arrangement of the cloth for being folded and stitched. Fig. 3 is a top view of the instrument.

Similar letters of reference indicate corresponding parts in the several figures.

This invention relates to improvements on devices which are designed for use upon the cloth-plates of sewing machinery, for the purpose of folding cloth in tucks or plaits, in the act of feeding the cloth beneath the needle.

The nature of my invention consists in combining a pressuregage plate, which is upon the end of a hinged handle, with an adjust-- able folder, a cloth-guide, and an adjustable plait-guide, in such manner that cloth can be readily and neatly folded in plaits, and also accurately guided in the act of moving it up and beneath the needle of a sewiug machine, said parts being so constructed that the folds or plaits can be made any desired width and any desired distance apart, as will be hereinafter explained.

To enable others skilled in the art to understand my invention, I will describe its construction and operation.

In the accompanying drawings, A represents the bed-piece of the instrument, which is a long narrow strip of metal, having lugs is formed on its upper face at one end, an extension, h, formed on its back edge, and an elevation, a, formed on the end opposite the lug 70. This bed-piece is to be secured upon the cloth-plate of a sewing-machine by means of a clampscrew passed through an eye which is made through the extension h, or in any other convenient manner. If desirable, a slotted extension might be formed on plate A, instead of the piece 72, so as to adapt this plate for being secured to different sewing-machines. To the lugs 70 one end of an arched handle, B, is

pivoted, by means of a transverse pin j, to the opposite end of which handle a flat plate, 0, is rigidly secured, as shown in the drawings. This plateO is properly marked on its top surface, so as to adapt it to serve, in conjunc .tion with a sliding plate, D, as a gage-plate for indicating the width of the folds made, or to be made, and the distance which it may be desired to make these folds. This plate 0 also serves as a pressure-plate, by means of which the operator can, with the hand upon the handle B, apply any required pressure upon that portion of the cloth which is drawn beneath it, as indicated in Fig. 2 by the red lines. Plate 0 extends nearly to the perpendicular shoulder s of the elevation a, so as to fold and hold the cloth against this shoulder.

From the back edge of the gage and presstire-plate G is a right-angular extension, 0, which increases the 'width of the folding-edge of this plate, and serves, in conjunction with the opposite straight edge of a tapering extension of the plate A, as a means for guiding the folded work up to the needle.

In the upper face of the elevated portion a. a dovetail grooveis made, and into this groove is fitted a plate, D, which may be made of any required length, and which should be allowed to slide in a direction with the length of the bed-plate, so that the edge nearest the handle B can be adjusted to any one of the marks upon the pressure-gage plate 0. This slideD should be in a plane parallel, or nearly so, to the surface of the bed-plate A, and it should be fitted into its groove so that it will not be liable to slip out of place during the operation of folding the work.

On the front edge of the bed-plate is a rectangular plate, E, one portion of whichis slotted to receive through ita binding-screw, b, for securing it to the bed'plate in any desired position. The lower portion of this plate E is extended along the edge of the bed-plateA beyond the shoulder s, and constructed with a guide, f, upon its end. This guide is made by reducing the end of said extension to a knife-edge, turning this end up, as shown, and forming upon one side a shoulder, which will sustain this end, upon the plate A, against downward pressure of the plate 0 in the act of guiding the folds or tucks to the needle.

To use this instrument, it is first secured in proper position upon the cloth-plate of a sew 1. The pressure-gage plate 0, applied to the ing-machine. The folding-slide D is then free end of a hinged handle, B, substantially moved aside, so as to allow the plate 0, with as and for the purpose described.

its handle B, to be raised high enough to in- 2. The pressure-gage plate 0 on the hinged troduce a portion of the cloth to be plaited handleB,in combination with the folding-plate beneath it. The guide having been adjusted D, substantially as described.

and set in proper position, according to the 3. The pressure-gage plate 0 on the hinged Width of spaces required to be left between handle B, in combination with an adjustable the plaits, the plate 0 is depressed and the guide, f, and a folding-plate, substantially as slide D moved over this plate to a given mark. described.

This will fold the cloth as indicated in red in 4. The vertically-adjustable gage-1: late C,

Fig. 2, and as the cloth thus folded is guided constructed with an extension guide, 0, upon up to the needle the pla'its will be stitched. it, in combination with a shoulder, s, and ex- While folding and stitching one plait, the tension-guide 2', formed on base-plate A, and operator presses with the hand upon thehana horizontally-adjustable slide, D, substandle B, and thus causes the guide f to hold the tially as described.

cloth in a line parallel to the plait which is being stitched, by which guide the next plait is formed parallel with last one stitched.

Having described my invention, what I claim as new, and desire to secure by Letters Patent, isl R. H. ST. JOHN.

Witnesses:

WARREN NIouoLs, SAML. H. APPL

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