US258870A

US258870A - altmann

Info

Publication number: US258870A
Authority: US
Publication date: 1882-06-06
Anticipated expiration: 1899-06-06

Description

Patented June 6, 1882.

rw F v A i c 1 A v INIVENYTORS a M NI! m x G E T m W UNIT D STATES,

PATENT OFFICE.

FRANK G. ALTMANN AND FRED POMMER, OF EDINA, MISSOURI.

NEEDLE-THREADING ATTACHMENT FOR SEWING-MACHINES.

SPECIFICATION forming part of Letters Patent No. 258,870, dated June 6, 1882.

Application flled March 4,1882. (No model.)

1" all whom it may concern Be it known that we, FRANK G. ALTMANN and FRED POMMER, of Edina, in the county of Knox and State of Missouri, have invented certain new and useful Improvements in Needle- Threading Attachments for Sewing-Machines;

and we do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification.

Figure 1 is a perspective view of our improved needle-threading attachment for sewing-machines, and Fig. 2 is a vertical sectional view of the same.

Similar letters of reference indicate corresponding parts in both figures This invention relates to needle-threading attachments for sewing-machines; and it consists in certain improvements in the construction of the same, which Will be hereinafterfully described, and particularly pointed out in the claims.

In the drawings hereto annexed, A represents the needle-bar, which slides vertically in suitable hearings in the frame B of the machine. The needle-bar A is grooved vertically to receive asliding rod, 0, which is confined inthe groove D of bar A by'aring or flange, E,'

formed or secured upon said bar, and also by the hearings in which the needle-bar moves. The rod 0 has at its lower end a bracket, F, to which is hinged a frame, G, in which the threading-tube T, which may be of the construction described in previous patents, No.246,360 and No. 252,007, issued to ourselves,is mounted. The upper end of the rod 0 has at its upper end a shoulder, 0, provided with a handle, H, by which it may be conveniently manipulated. It is also provided with a notch, I, adapted to engage a spring-catch, J, mounted at the upper end of the needle-bar for the purpose of retaining the rod Gin its normal or raised position. The rod 0 is provided with a stud, K, which is so disposed in relation to the ring or flange E of the needle-bar that when the said rod 0 is lowered and the stud K strikes flange or ring E the threading-tube T shall register with the eye of the needle.

Mounted in a socket, L, at the upper end of the frame-piece B, is a pin, M, supported upon a spring, N. The function of said pin, which weterm the anvil, will bepresentlydeseribed.

To operate our improved needle-threading device, the catch J is disengaged from the notch I, at the-upper end of rod 0, which may then be lowered until its pin or stud K strikes the flange or ring E of the needle-bar. The thread in g-tube then registers with the eye of the needle, which may be easily threaded. Therod O is automaticallyreturned toits original raised position, when the machine is started by the shoulder at the upper end of said rod striking the anvil M, which holds said rod while the needle-bar continues its downward course until the catch J'again engages the notch I at the upper end of rod U.

By mountingthethreadiug-tube,as described, in a hinged frame, its front end will easily and readily swing into contact with the needlewithout the employment of springs, and without mountingthe carrying-rod O in diagonal guides, as has heretofore been done.

Having thus described our invention, we

claim and desire to secure by Letters Patent of the United States- 1. In a sewing-machine, the combination, with the needle-bar, of the vertically-sliding rod and threading-tube mounted in a frame hinged to thelower end of said rod, as set forth.

2. The combination oftheneedle-bar A, having groove D and ring or flange E, with the sliding rod 0, having pin or stud K, and hinged frame G, carrying the threading-tube-T, as set forth.

3. The combination of the frame B, having spring-supported piu M,the needle-barA, having groove D,ring E andcatch J, and the sliding rod. 0, having handle H, notch I, pin K, and hinged frame G, carrying the threadingtube T, all arranged and operating substantially as and for the purpose set forth.

In testimony that we claim the foregoing as our own we have hereto aflixed our signatures in presence of two witnesses.

FRANK G. ALTMANN.

FRED POMMER. Witnesses:

, FRANK 000K, J OHN Downs.