US389081A - Hand sewing-machine - Google Patents

Description

(No Model.) 4 Sheets-Sheet 1.

L. P. INGRAHAM &'G. L. HUBBELL. HAND SEWING MACHINE.

310.389,.081. Patented Sept. 4, 1888..

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(No Model.) 4 Sheets-Sheet 2.

L. P. INGRAHAM & G. L. HUBBELL. HAND SEWING MACHINE.

No. 389,081. Patented Sept. 4, 1888.

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L. P. INGRAHAM & G. L. HUBBELL.

HAND SE WING MACHINE.

N0. 389,081. Patented Sept. 4, 1888.

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(No Model.) 4 Sheets-Sheet 4..

L. P. INGRAHAM & G. L. HUB'BELL.

HAND SEWING M GHINE.

Patented Sept. 4, 1888.

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LEPRELETTE P. INGRAHAM AND GEORGE L. HUBBELL, OF BRIDGEPORT, CONNECTICUT, ASSIGNORS, BY MESNE ASSlGNMENTS, TO DANIEL C. OYSTER, OF RIDGWAY, PENNSYLVANIA.

HAND SEWING-MACHINE.

SPECIFICATION forming part of Letters Patent N0. 389,081, dated September 4, 1888.

Application filed July 27, 1886.

To all whom it may concern.-

Be it known that we, LEPRELET'IE P. INGRA- HAM and GEORGE L. HUBBELL, citizens of the United States, residing at Bridgeport, in the county of Fairtield and State of Connecticut, have invented certain new and useful Improvements in Hand Sewing-Machines; and we do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the artto which it appertains to make and use the same.

Our invention relates to certain new and useful improvements in hand sewing-machines, and has for its object to furnish a machine adapted to be operated by a lever and handpressure after the manner of shears, and in which a straight needle may be used, in which the parts shall be simple and positive in their operation, and which, moreover, shall possess the same certainty of action as the larger machines which are mounted upon a table or stand and are operated by rotary motion; and with these ends in view our invention consists in the details of construction and combination of elements hereinafter fully set forth, and then recited in the claims.

In order that such as are skilled in the art to which our invention appertains may fully understand both how to make and use our improvement, we will now describe the same in detail, referring by letter to the accompanying drawings, which form a part of this specification, and in which- Figure l is a side elevation of the frame and work-plate, having attached thereon the operating-levcr, needle-lever and needle-bar, and the clamp; Fig. 2, a side elevation of the assembled machine; Fig. 3, a plan view of the shuttle mechanism, the work-plate being removed; Fig. 4, a bottom view showing the shuttle mechanism and feed; Fig. 5, a rear side elevation showing the position of the parts when the needle is in the goods, and Fig. 6 a transverse vertical section at the line .r m of Fig. 4..

Similar letters denote like parts in all the figures of the drawings.

The frame of the machine is composed of the Serial No. 209,266.

(No model.)

rearwardly projecting rigid handle A, the overhanging needle/arm B, and the plate-supporting arm G, all of which parts are preferably made integral.

The work-plate D is secured upon the arm 0 at its forward end and at its rear end to the vertical portion of the needle-arm.

E is the needle-lever, pivoted at F to the needle-arm. Its forward extremity is forked and embraces a stud or screw upon the needlebar G, which slides in ways formed in the end of the needle-arm.

H is the operating-lever. It is pivoted to the base of the needle-arm and connected to a short backward projection, I, from the needle lever by means of link J.

K is the take-up. It is preferably curved, as shown in Fig. 2, and is pivoted to the needle-arm, as at a, and its extremity is secured to the needlelever by a slot-and-pin connection, as at b.

A bifurcated presscr-foot, L, is secured upon a presser-bar, M, behind the needlebar, and any usual lifter, as N, is attached to said pressenbar to raise the same.

A spool-pin, O, is mounted at the rear end of the needle-arm, and a tension device, P, is arranged upon the top of said arm.

The loop-taking device and the mechanism for operating the same are as follows:

Upon a downward extension, Q. of the nee die-lever is secured a cross-pin, R, which on ters a slot in a bar, S, arranged to slide upon the side of the plate-arm.

T is a plate, which is mounted upon the bar S, and is arranged parallel to the under surface of the work-plate. Through the plate last referred to is cut a curved or deflected slot. (Shown at Fig. 3.)

U is a swinging carricrbar whose forward end carries a small boat-shaped shuttle, V, after the manner of such machines as the Enipress, Domestic, Helpmate, See. The rear end of the carrier-bar is pivoted to the top of the plate-arm, and a pin, W", extends upward from said bar through the deflected slot in plate T. The back and forward motion of the plate T and the engagement of the pin V with the U ment thereto.

curved slot therein impart the proper segmental reciprocating movement to the carrierbar and shuttle.

The feeding of the goods beneath the needle is accomplished by the following means:

A link, X, adjustable in the slotted downward extension Q of the needle-lever, connects the latter to the long arm of an L-shaped lever, Y, which extends across the bottom of the work-plate and whose elbow is pivoted thereto.

Z is the feed-lever, fulcrumed to the bottom of the work-plate and with its rear end pivotally connected to the short arm of the lever Y.

A is the feed-bar, and B is the feed-dog carried thereby. The two extremities of the feed-bar are forked, and the end engaged by the feedlever is bent slightly away from the work-plate. The end of the feed-lever passes under the bent end, and a pin, 0, upon said lever passes through a slot in the bar. A T- headed stud engages the other forked end of the bar and holds the same to the work-plate, while permitting limited longitudinal move- A spring, 0, is secured to the bar near its center, and its other end bears upon the under surface of the work-plate.

D is a spring interposed between the handle A and the operating-lever H. The lead of the upper thread from the commercial spool upon the spool pin through the tension, takeup, and guide-eyes is shown at Fig. 2 in dotted lines. 7

E is a clamp or dog for the attachment of the machine to a table or bench. Its hooks e grasp the plate beneath the shuttle, and an ear, f, is secured to the work-supporting arm by a set-screw, g. A clampscrew, h, secures it to the table.

The operation of our improvement is as follows: By the opening and closing of the hand the operatinglever is closed toward the handle upon the frame against the action of spring D, which serves to return said lever when the grip of the operator is relaxed. The movement thus induced in the lever is communicated to all the working elements of the machine through the link J, which effects an oscillation on its pivotal point in the needle-lever. Thereby the vertical reciprocation of the needle-bar and needle is effected after the manner common to sewing-machines. At each downward stroke of the needle-lever the rearward motion of the slotted extension (through the cross-pin, slide-bar, and horizontal slotted plate) swings the carrer across through its arc, and the shuttle takes the loop in the ordinary manner. Meanwhile the take-up has been car-' ried upward, giving out the slack for the loop, and after the loop has been traversed by the shuttle, and as the needle ascends, thestitch is drawn tight in the fabric. The swinging of the feed-lever simultaneous with the downward stroke of the needle effects the downbar. The downward movement of the feed bar and dog is effected by the feed-lever, which is wedge-shaped in cross section, (see Fig. 6,) and which is forced between the feed bar and the work-plate, thereby lowering that end of the said bar out of engagement with the plate. The other end of the feed-bar is pivoted at d; but the downward movement at the center is sufficient to take the dog out of engagement with the goods. The backward movement is induced by the engagement of the pin on the lever with the slot in the bar. The upward movement of the bar, which carries the dog into engagement with the goods, is brought about through the withdrawal of the feed-lever from between the bar and workplate and the action of the spring 0, and the forward movement, whereby the goods are moved beneath the needle for the next stitch, by the engagement of the pin on the feed-lever with the other end of its slot.

The clamp, which may be separate, but which it may be advantageous to form upon the machine, gives to the operator the option to operate the machine by holding it in one hand while the goods are fed by the other, or to secure the machine firmly to some stationary object'as a tableand thereby give to it a rigidity and steadiness in operation otherwise impossible.

Having thus described our invention, what we claim as new, and desire to secure by Letters Patent, is-

1. The combination, with the needle-arm, work-supporting arm, and the handle rigid upon the first named, of the pivoted needlelever and the vertically-sliding needle-bar carried thereby, the swing-carrier and shuttle, and the means whereby motion from the needle-lever is communicated thereto, the feeding mechanism and its connection to the needle-lever, and the operating-lever pivoted to the needle-arm and connected to the needlelever, whereby power is imparted to the ma chine, substantially as set forth.

2. In a hand sewing-machine, the combination, with the needle-arm, work-supporting arm, and handle formed integral therewith, of the pivoted needle-lever and needle-bar, the pivoted operating-lever whereby movement is imparted to the needle-lever, the slide-bar S, the horizontal plate provided with a curved slot, and the pivoted swingcarrier and shuttle operated from the downward extension of the needle-lever, the feedlever and its bell-crank connection to the downward extension last referred to, the transverse feed-bar, its slot-andpin connection to the feed-1ever, and the feed-spring whereby the upward motion of the feed-bar is accomplished, all arranged as described, and for the purpose set forth.

3. The combination, with the needle-arm, needle-lever, and the rigid and pivoted handles whereby power is applied to said needlelever, of the slotted bar connected to the extension of the need1e-1ever and arranged to seoei 3 slide upon the side of the plate-arm, the plate '1', mounted upon and carried by the slotted bar aforesaid, said plate having eut therein a curved or deflected slot, the carrierber pivoted to the plate-arm and havinga pin arranged to travel in the slot in plate T, and the shuttle carried by said carrier-bar, all an ranged as described, and for the purpose set forth.

4. The combination, with the needle-arm and plate-arm, of the needle-lever extended downward below its pivotal point, the shuttie mechanism and feeding devices, both 0p-

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