US214903A - Improvement in sewing-machines - Google Patents

Description

1). W. G OODELL. Sewing-Machine.

Patented April 29,1879.

N PETERS. PHOTO LITHGRAPHEE WASHING UNITED STATES PATENT OFFICE.

DEXTER W. GOODELL, OF FLORENCE, MASSACHUSETTS, ASSIGNOR TO FLORENCE MACHINE. COMPANY, OF SAME PLACE. a

IMPROVEMENT IN SEWING-MACHINES.

Specification forming part of Letters Patent No. 214,903, dated April 29, 1879; application filed September 6, 1878.

To all whom it may concern:

Be it known that I, DEXTER W. GooDELL, of Florence, in the county of Hampshire and Stateof Massachusetts, have invented certain new and useful Improvements in Sewing-Machines, of which the following is a description, reference being had to the accompanying drawings, forming part of this specification.

The invention consists in certain novel combinations of devices with the main shaft which actuates the needle-bar, shuttle, and feeder, whereby motion is transmitted by an eccentric in a smooth, positive, and easy manner from the main shaft to the feed-shaft and shuttle-carrying lever.

The accompanying drawings only illustrate so much of a sewing-machine as is necessary to explain my invention, the remaining portion of the machine not necessarily differing from that of other shuttle-machines, in which the shuttle-driving lever and feed-shaft arranged below the bed are operated by connections with a needle-operating shaft in the arm or goose-neck of the machine.

Figure 1 represents a mainly sectional side elevation of the rear portion of a shuttle or double thread sewing machine having my invention applied; and Fig. 2 a partly-sectional rear elevation of the same, with the balance-wheel and driving-pulley of the machine, also a plate which covers a rear opening in the goose-neck or arm on the bed, removed.

A is the bed of the machine, and B the fixed arm or goose-neck mounted thereon. C is the main shaft, arranged to work within said arm or goose-neck, and serving to communicate motion to the needle-bar, the shuttle-carrying lever, and the feeding device of the machine. D is the driving-pulley, which may, if desired, be arranged loose on the shaft 0, or on the hub of a balance-wheel, E, which is fast on said shaft, and is provided with a spring-catch or coupling-pin, S, that engages with anyone of a series of apertures, f, in the driving-pulley D, when it is required to have the pulley D drive the shaft C; but this special construction of the driving-pulley, and means providing for its engagement with and disengagement from the main shaft, forms no part of this invention. Secured on the shaft C, within the rear upright portion of the arm B, is an cecentric, G, on which is fitted a yoke, H, for actuating both the feeding device and the shuttle-carrying lever.

I is the feed-shaft, to which rotary motion for actuating the feeder of the material under operation is communicated asfollows: J is a connecting-rod, pivoted at its one or upper end to the yoke H on one side of the shaft C, and attached at its opposite end to a vibrating crank, K, which has its shaft or center of motion 1) in an arm or disk, L, secured on the feed-shaft I, the shaft or center of motion b being in eccentric relation to said shaft.

To rotate the shaft I through or by means of the connecting-rod J and vibrating crank K in a smooth, positive, and easy manner, free from all liability of the feed-shaft moving in a reverse direction, or of the vibrating crank working forward and backward without producing a continuous rotation of the feed-shaft in its requisite direction, the connecting-rod J is fitted to rock upon an intermediate fulcrum, Q, and is guided in direction of its length to provide for the longitudinal movement of the rod by a slide, M, con iected with said fulcrum, and working within a slot, 0, in the rod J or the rod J might have attached to it the intermediate fulcrum and slide arranged to work within a fixed longitudinal guide.

N is a shuttle-operating lever, having a fixed fulcrum, d, in the arm B, and pivoted at its one or upper end to the yoke H on the reverse side of the main shaft C to that on which the connecting-rod J of the feed-operating mechanism is pivoted. The lower or opposite end of this lever N is in free connection by a slide, 0, with a shuttle-carrying lever, P, having its fulcrum e on the under side of the bed A. The opposite end of the lever P to that which is connected by the slide 0 with the lever N carries the shuttle.

The rear upright portion of the fixed arm B may be of open construction. at its back, and be closed or covered by a removable back plate, R, to provide for access to the mechanism contained within said arm.

'I claim- 1. The combination of the driving-shaft C,

the eccentric G, eccentric-yoke H, the feedshat't I, the rod J, connected at one end with the yoke,and at its other end with the feed-shaft, and a slide connection and fulcrum applied to the connecting-rod, substantially as and for the purpose described.

2. The combination of the driving" shaft 0, the eccentric G, yoke H, the feed-shaft I, the rod J, connected at one end with the yoke and at its other end with the feed-shaft, and a fulcrum, Q, and a slide, M, connected with the fulcrum, and working in a slot. 0, in the c011- necting-rod, substantially as shown and described.

3. The combination of the eccentric G, driving-shaft the crank K, feed-shaft I, the eccentric-yoke H, the shuttle-operating lever N, and sliding connection with the shuttlecarrying lever P and connecting-rod J and its fulcrum, substantially as described.

4. The combination of the eccentric G, driving-shaft U, the crank K, the shaft I, the eccentric-yoke H, the shuttle-operating lever N, and the connecting-rod J and its fulcrum and slide connection, substantially as described.

5. The combination of the eccentric G, driving-shaft (J, the eccentric-yoke H, the feedshaft I, connecting-rod J, the slide and fulcrum applied to said rod, the crank K on the feed-shaft, the shuttle-operating lever N, the slide connection 0, and the shuttle-carrying lever l, substantially as described.

DEXTER W. GOODELL.

VVi tnesscs:

E. N. TANNER, II. I. DIBBLE, Jr.

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