US310612A

US310612A - John w

Info

Publication number: US310612A
Authority: US
Publication date: 1885-01-13
Anticipated expiration: 1902-01-13

Description

(No Model.)

J. W. POST.

SEWING MACHINE.

No. 310,612. Patented Jan. 13, 1885.,

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JOHN \V. POST, OF NEW YORK, N. Y.

SEWING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 310,612, dated January 13:, 1885.

A pplication filed July 3, 1884. (No model.)

Z") (4% whom it may concern.-

Be it known that I, JOHN IV. Pos'r, a citizen of the United States, residing at New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Feeding Mechanism for Sewing-Machines, of which the following is a specification, reference being had therein to the accompanying drawings.

My invention relates to a feeding mechanisin more particularly adapted to the machine shown and described in my application No. 136,180, filed June 27, 1884, the object of my invention being to inelose the feeding mech anism, so as to exclude dust and dirt therefrom, the inclosing-plate serving also to hold the feed-lever in position on its actuating-eccentric. The feed-regulating lever may also be sustained by the inclosing-plate.

In the drawings, Figure 1 is a vertical section on line 1 1, Fig. 2, of my invention. Figs. 2 and 3 are sections on line 2 2 and 3 3, respectively, Fig. 1, of the same, the feed-lever being in elevation in Fig. 2.

A indicates a portion of the bed-plate of a sewing-machine, and B a depending lug .or bracket thereon. In said lug or bracket is tightly fitted a bushing, O, forming the front bearing for the driving-shaft D, having at its forward end the looper-operating disk E. A bushing, F, for, the loopershaft, and a slotted latch, G, fol-holding the looper-shaft in place, as fully described in my application above referred to, are supported by the lug or bracket B.

H is the feed-lever, having at its upper offset end the feed'dog h, the lower end of the said lever encircling an eccentric, I, secured to the driving-shaft D.

J is a recessed plate, conforming in outline to the bracket B, to which it is secured by screws j, or in any other suitable manner. This recessed bracket J thus forms a housing for the feed-lever and its eccentric, tightly inclosing these parts laterally, as shown in Fig. 3, and thereby excluding dust and dirt therefrom.

The bushing 0 projects within the recess opposite side of the said lever being in loose contact with the inside wall of the said recessed plate, which thus serves to keep said lever in position on its operating-eccentric, where it can easily and noiselessly play between the plate and bushing when the ma chine is in operation.

.K is the feed-regulating lever, which is preferably pivoted on a pin entering the plate J, which thus serves as a support for said lever, a pin, 7. on the end of which enters a slot in the feed-lever. as a fulcrum for the feed-lever, and by moving said pin nearer to or farther from the feed-operating eccentric the throw of the feeddog at the upper end of the feed-lever will be varied, according to the length of stitch desired, in a well-known manner.

Having thus described my invention, I claim and desire to secure by Letters Patent 1. The combination, in a sewing-machine, of a bed-plate having a depending bracket, a recessed plate attached to said depending bracket and having a shape corresponding thereto, a driving-shaft, a bushing for said shaft, fixed to the depending bracket and'pro' jecting within the recess of its attached plate, and an eccentric and a feed-lever, both arranged within the said recess, whereby the attached recessed plate is adapted to serve as a housing for the said feed-lever, and to hold the latter in place on its eccentric, substantially as set forth.

2. The combination, in a sewing-machine, of a bed-plate having a depending bracket, a recessed plate attached to said depending bracket, a feed-regulating lever attached to said recessed plate, a driving-shaft, a bushing for said shaft, fixed to the depending bracket and projecting within the recess of its attached plate, and an eccentric and a feed-lever, both arranged within the said re The pin it serves ccss, whereby the attached plate is adapted to serve as a housing for the said feed-lever, and to hold the latter and the feed-regulating lever in place, substantially as set forth.

3. The combination, in a sewing-machine, of a bed-plate having a depending bracket, a recessed plate rigidly secured to said depending bracket, 2i driving-shaft; an eccen- In testimony whereof I afiix my signaturein trio, and a feed-lever, the latter and the ecpresence of two witnesses. centric bein contiguous to the inner surface of the said recessed plate, which is thus adapt- JOHN POST 5 ed to protect these parts from dust and to re- Vitnesses:

tain the said lever on its eccentric, substan- ALBERT H. NORRIs,

tially as set forth. E. D. SMITH.