US143589A

US143589A - Improvement in corders for sewing-machines

Info

Publication number: US143589A
Authority: US
Current assignee: SABIC Global Technologies BV
Publication date: 1873-10-14
Anticipated expiration: 1890-10-14

Description

UNITED STATES APATENT OEErcE.,

JOHN G. POWELL, OF PHILADELPHIA, PENNSYLVANIA.

IMPROVEMENT IN CORDERS FOR SEWING-MACHINES.

Specification forming part of Letters Patent No. 143,589, dated October 14, 1873; application filed August 11, 1873.

To all whom it may concern:

Be it known that I, JOHN G. POWELL, of the city and county of Philadelphia and State of Pennsylvania, have invented a new and useful Oording Attachment for Sewing-Machines, of which the following is a speciica-V tion:

This invention relates to that class of corders in Which a recurved spring attached to the presser-foot guides the cord, by suitable eyes, to the fold of the fabric in which it is sewed; and has for its object the easy introduction of the cord into the guides, and the greater Vcertainty of retaining the proper adjustment of the guides, besides a saving of labor in the making of the corder consequent upon its simple construction.

The annexed drawing, which is of actual working size, shows, in Figure 1, a plan of this corder, and in Fig. 2 a front elevation thereof. Fig. 3 is a section on the line Xin Fig. l, four times enlarged.

The same letters of reference apply to the saine parts in the several iigures.

-A represents the presser-foot, B, a recurved spring attached thereto. The spring B formed into one or more corrugations, marked B1, at the bend. This stiffens the spring against any lateral inaladjustment of the lower end B2, but does not interfere with its elasticity in a vertical direction. Instead or soldering `or riveting tubes to the spring B, through with the spring B. In this projection a groove is sawn horizontally, and the pair of ears C2 and G3 (see Fig. 2,) are bent so as to form a guide, in and from which the cord may be introduced or withdrawn laterally, the elasticity of the ears O2 and O3 being such as to yield in these operations and yet hold it during the sewing process by forming the guides C in the manner described.

The following advantages are secured: They are made with less labor, and, being immovable, cannot be put out of adjustment.

The elasticity of the spring B and ears C2 and O3 is unimpaired by the heat incident to the soldering process; and the cord is introduced 'and removed with a facility impossible with tubular guides.

I do not, broadly, claiin to have invented a cordjng attachment with a recnrved spring attached to the presser-foot of la sewing-machine, and bearing-guides directing the cord to the place of sewing, the same-.having been heretofore made and used; but

What I do claim as my invention is- The corder herein described, consisting of the spring B attached to the presser, corrugated at B1, and provided with the open guides O and O1 having guiding-ears, as shown, all being constructed and operating as set forth.

y JOHN G. POWELL.

Witnesses:

J AMES P. PETIT, GEo. R. J EFFERsoN.