US118109A - Improvement in attachments for sewing-machines - Google Patents

Description

G.A.C0LT oN BLSRBABCQC Improvement In Attachments To 12mm AUG 15 1871 UNITED STATES PATENT OFFICE.

GEORGE A. COLTON AND SYLVESTER I). BABCOCK, OF ADRIAN, MICHIGAN.

IMPROVEMENT IN ATTACHMENTS FOR SEWING-MACHINES.

Specification forming part of Letters PatentrNo. 118,109, dated August 15, 1871.

To all whom t't may concern:

Be it known that we, GEORGE A. CoLToN and SYLvEsTER P. BABcocK, of'Adrian, in the county of' Lenawee and State of Michigan, have invented certain new and valuable Improvements in Sewing-Machine Attachments 5 and we do hereby declare that the following is a full, clear, and exact description of the construction and operation of the saine, reference being had to the annexed drawing making a part of this speciiication, and to the letters and figures of reference marked thereon.

Figure l of the drawing is a top view of our invention. Fig. 2 is a side view of' the same. Figs. 3, 4, 5, 6, 7, 8, and 9 are details.

Our invention has relation to certain improvements in cord-welting devices and other attachments for sewing-machines; and consists in the method of connecting the bed-plate and the detachable presser-plate, whereby they are rendered more steady; in the construction of the corder and method of attaching it to the tongues; and in the construction of the adjusting set-screw and the method of operating the same between two bearings formed by the bed-plate.

A ofthe drawing designates the bed-plate, provided with the gauge b, button c, and nut d. A slot, e, is formed at the bend between the iianch and the horizontal part of the plate for the introduction of the presser-plate G, which is provided with a slot, s, in its end. A loop, h, serves to confine the presser-plate to the bed-plate, and a spring-catch, k, connects the two by rising into the slot s in the end of' the presser-plate. B represents the detachable fingers, secured to the bed-plate by means of' a set-screw and the button c. D represents the corder, which is attached to the tongues E by means of small lugs z z, which project upward and downward into small openings n formed in the upper and lower branches of the tongue near the bend. Prior to bending the tongues E a slot, y, is formed longitudinally, which, after it is bent, serves to divide the rear end vertically into two branches, which pass on either side of the set-screw. Each of these branches is furnished with two openings, a, one above and the other below, for the reception of the lugs z z. In the manufacture of the corder a plate, m, is first stamped or out out of sheet metal of the f'orm shown at Fig. 9. rlhe center is expanded into a rectangular form, while the ends are forked. The rectangular expansion serves, after the plate is bent, as a gauge for the welt-cloth, while the forked ends extend to the rear on each side of' the set-screw, and are attached to the tongues by the lugs z z. The cordway 'v consists of a tube of steel or other metal, rigidly attached by solder or otherwise to the plate m. It is secured between the upper and lower branches of the plate after it is bent, and extends from front to rear at an angle of about forty-five degrees. The delivering end of the tube, from which the cord passes into the clothwelt, extends through the bend of the welt-cloth gauge q at the end thereof which lies next to the presser-plate. Attached to the side of the corder D, in rear of the welt-cloth gauge, is the lug zo, whose perforation is provided with a f'emale-screw thread to receive the adjusting-screw a. This screw is provided with a collar, d, and works between the lianch l) and the notched bearing or rest b', both being f'ormed by bending up the metal of` the bed-plate.

By turning the screw a the corder is adjusted backward or forward as may be required, while the rounded edge or bend ofl the welt-cloth gauge is always kept parallel to itself, thereby preventing any turn or twist in the material, and enabling the operator to feed it forward in a right line to the needle. The object of the forked shape of the end of the corder is now apparent.

A similar adj Listing-screw may be attached to a binder, H, Fig. 7, an d, the forked shape being given to the rear end thereof, it may be placed between the lingers and adjusted back and forth according to requirement in a similar manner to the corder above described. By means of the little lug w, with its female screw, the adjusting-screw a may be attached to a hemmer also, and to any sewing-machine attachment which operates in an analogous manner.

All of the above-described devices, with the exception of the cord-tube o, nut d, set-screw a, and lug w, can conveniently be made of sheets metal.

We do not claim, broadly, a removable presserplate attached to a bed-plate, as we are aware that such a plate is an old device; but

What we claim as our invention, and desire to secure by Letters Patent, is-

l. In combination with the plate A, having loop h and catch k, the removable presser-plate G provided With a slot or catch, s, for the purpose speeied.

2. The eerder, constructed substantially as described7 and provided with :t set-screw 11a-ving a collar, o', in combination with the bed-plete hzwing the anch b and notched bearing b.

In combination with the bed-plate A having the bearings b b', the combined tongues and e0rder herein described7 provided with the adjusting'serew a with its colla-r c, substantially as :md for the purpose specified.

In testimony that We claim the above we have hereunto subscribed our names in the presence of two Witnesses.

GEO. A. COLTON.

Witnesses: SYLVESTER P. BABCOGK.

C. B. JOHNSON, S. E. GRAVES.

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