US345684A

US345684A - hadley

Info

Publication number: US345684A
Authority: US
Publication date: 1886-07-20
Anticipated expiration: 1903-07-20

Description

in ModeL) a Sheets-Sheet 1 H. W: HADLEY & W. L. GROUT;

- FEEDING MECHANISM FOR SEWING MACHINES.

No. 345,684. Patented July 20 1886.

N. PETERS mliflwgnplur, Wahlngton. D. C,

(No Model.) 3 Sheets-Sheet 2.

H. w. HADLEYX; W. LGROUT.

FEEDING MBGHANISMTOR SEWING MACHINES.

No. 345,684. Patented July 20 1886.

ii 1 I i I -1 I O I i wowifow (No Model.)

' E 3 Sheets-Sheet 3. H. W. HADLEY & W. L. GROUT.

, FEEDING MECHANISM FOR SEWING MACHINES.

Patented July 20; 1886.;

N ETERS. "win-Lithograph", Washington. D. C.

UNITED STATES PATENT OFFICE.

HORACE W. HADLEY AND NVILLIAM L. GROUT, OF ORANGE, MASS;

FEEDING MECHANISM FOR SEWING-MACHINES.

SPECIFICATION forming part of Letters Patent Elo.345,684, dated July 20, J 886.

Application filed September 11, 1885. Serial No. 176,8l6. (No model.)

To all whom it may concern.-

Be it known that we, HORACE W. HADLEY and WILLIAM L. GROUT, both of Orange, county of Franklin,and State of Massachusetts, have invented an Improvement in Feeding Mechanisms for Sewing-Machines, of which the following description, in connection with the accompanying drawings, is a specification,

like letters on the drawings representing like parts.

This invention has for its object to simplify andimprove the devices for operating the feeding-bar. I

In this invention the feeding-bar is attached to a rocker, and the latter is vibrated about its pivots by means of an oscillating rod supported in a bearing pivoted uponaprojecting arm of a feed-regulating slide, one end of the said rod being j ointed to a pivoted lever mounted on a vertical stud, the rear end of the said lever being connected by a link with the lower end of a lever mounted on a horizontal pivot in the upright arm of the machine, the upper end of the said lever having a cam-slot, which is entered by a roll on a stud extended from a connecting-rod attached at its upper end to a crank of the needle-bar-actuating shaft, the lower end of the said connecting-rod, by asystem of links, to be described, imparting mo tion to a rock-shaft below the bed-plate, the said rock-shaft in practice moving a shuttlecarrier, (not shown,) and being provided with a cam or eccentric, which, co operating with an arm attached to the feed-bar, effects the raising and lowering of thelatter to engage and release the cloth or material being sewed.

Our invention consists, essentially, in a system of levers, substantially as will be described and pointed out in the claims, whereby is obtained a reliable and simple feeding mechanism.

Figure 1, in side elevation, represents a sufficient portion of a sewing-machine to enable our invention to be understood; Fig. 2, an under side view thereof, the shuttle and race being omitted; and Fig. 3 isa section of Fig. 1 in the dotted line a: as, looking toward the left.

The bed-plate A, upright arm A, overhanging arm A, main rotating needle-bar-actuating shaft A, feedadjusting slide IB, provided with alug, B, the bearing B, pivoted thereon, and the screw-stud B, rising from the slide B through a slot in the bed-plate, are all sub stantially as usual.

The feedbar a is attached by suitable screws, a, to ashortsleeveo ,supported upon apin, a, having its ends sustained in sockets a of arms depending from a rocker, a supported upon pointed pivot-screws a The short sleeve of has an arm, a, which is forked at a,(see, also, dotted lines, Fig. 3,) to embrace a cam or eccentric, a on the oscillating shaft 0, which, as stated, in practice will actuate the shuttle. (Not shown.) The cam or eccentric a acting upon the arm a", turns the sleeve to place the acting end of the feeding-bar against the material, and then to lower it away from the said material.

The oscillating bearing B" receives in it a rod, D, the front end of which in practice is made ball-shaped and enters a ballshaped recess in the socket (1. the latter being split, (see Fig. 2,) its ears receiving an adjusting-screw, b. The rear end of the rod D is loosely joined by a screw, D, with a lever, D having as its fulcrum the vertical screw D, the rear end of the said lever being in practice made ballshaped, and being embraced by the open socketed end of the link e, jointed by a screw, 6', to the lower end of the lever E, having its fulcrum on the horizontally-placed stud E, inserted into the upright arm A. end of the lever E is provided with a camshaped slot, as shown in Fig. 3, which receives the roller 0" on the stud 0 extended laterally from the connecting-rod E, which at its upper end is made to embrace the crank of the shaft A, the lower end of the said connecting-rod having a pin, f, with which is connected a short arm of a rocking lever, G, the journals 9 of which are supported upon pointed screws 9 .a longer arm of the said rocking lever being provided with a pin, 9 over which is placed one end of a link, 9*, that embraces at its opposite end a stud, 9 carried by the crank secured to the shaft 0.

The connecting-rod F vibrates the elbowlever G, and it, by the links described, oscillates the shaft 0.

The length of feed-stroke will be varied, when The upper desired,by moving the slide B and the pivoted fulcrum 13 thus altering the effective stroke of the frontend of the rod D, or that end thereof connected with the socket a.

We claim 1. The rotating shaft A the connecting-rod F, its roller-stud, and the lever E, provided with the cam-slot and the link 0, combined with the lever D, pivoted at D the rod D, and the movable fulcrum B and .With the feed-rocker to move the feeding-bar, substantially as described. v

2. The bed-plate,t-he feed-rocker a, pivoted upon and depending from the under side of the said bed and provided with the sockets a, the sleeve a supported by the said rocker, tended therefrom, and the rod D, combined and the feeding-bar a and forked arm a ex- \Vitnesses:

H. S. DAWLEY, F. 'I. EWING.