US259383A

US259383A - Julius c

Info

Publication number: US259383A
Authority: US
Publication date: 1882-06-13
Anticipated expiration: 1899-06-13

Description

J. C. GOODWIN.

BOBBIN WINDER PoR SEWING MAGHINBS.

,383. Patented June 13 (No Model.)

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Y NrrED STATES PATENT OFFICE.

JULIUS C. GOODWIN, OF KALAMAZOO, MICHIGAN, ASSIGNOR OF ONE-HALF TO IVILLIAM HOTOP, OF SAME PLACE.

BOBBIN-WINDER FOR SEWING-MACHINES.

SPECIFICATION forming part of Letters Patent No. 259,383, dated .Tune 13, 1882.

Application filed March 2l, 18S-2. (No model.)

To all whom it may concern:

Be it known that I, JULIUS C. GOODWIN, a citizen of the United States, residing at Kalamazoo, county of Kalamazoo, State of Michigan, have invented new and useful Improvementsin Sewing-Machines, of which the following is a specification.

My invention has for its objects certain improvements, in combination with the bobbinwnder, to effect useful results, hereinafter described. v

In the drawings, forming a part of this specitication, Figure 1 is a sideelevation of my invention, showing the machine-arm partly in section and theV bobbin-winder swung down; Fig. 2, a section on line 3 4 in Fig. 3; Fig. 3, a view, looking from a point at the right of Fig. l, with the bobbin-winder swung up to engage the belt, the upper portion of said figure being in section on line 1 2 in Fig. l; Fig. 4, an end view of the hub of the belt-pulley, with the pulley-shaft in section, on line 5 6 in Fig. l; and Figs. 5 and 6, detached parts in perspective, hereinafter described.

B is the pulley-shaft, located in the hollow arm A, as in many sewing-machines, said shaft connecting with theneedle-bar (not here shown) in a manner to impart a vertical movement thereto. l

F is the y-wheel, rigidly keyed to shaft B.

I) is the belt-pulley, revolubly located on shaft B, around which the belt x :c is located, at the top, the lower portion of said belt being located, in the usual manner, around the treadlewheel below the table. (Not here shown.)

H illustrates the common bobbin -winder with belt -wheel lw. I provide this bobbinwinder with a cam-lever, C, integrally formed therewith, or firmly secured to the same at the point of pivoting, Fig. 3. The circular edge of this lever C consists of a flange or rim increasing in width from one end to the other, Fig. l. t is a vertical lever pivoted to the arm A on the inside, or to other suitable support at d. The lower end of this lever terminates in a right-angled extension, s, through the right side or wall of arm A, and bears spring o. This extension may be rigidly or integrally formed with the vertical part of the lever, or 5o it may be pivoted, as in Figs. 1 and 6.. When rigidly secured the hole through which it passes should be sufficiently large to admit of the slight vertical play ot' said part s. The outer end is provided with slot fi, adapted to receive 5 5 the tapered rim of the lever-cam, Figs. l and 6. The upper end of the vertical lever tis loosely located in a groove of a collar, a, said collar being adapted to revolve with shaft B, and to be moved laterally thereon, Figs. 1, 2, 6o 3. To this collar a locking slide or bar, c, is secured, one or more, as desired. This slide cis provided with a projection, a', which is adapted to pass into mortises h h of the hub of beltpulley D in locking said pulley. The lockingslide c is located in a channel or recess in shaft B, and is adapted to slide back and forth therein. fn m is a recess formed in the end of the shaftsupport around said shaft B to accommodatc projections a a. By thus adapting a 7o bobbin-winder to lock and unlockthe belt-pulley greater convenience in construction and operation is effected, especially in sewing-machines of the style described, and nearly all the mechanism is shielded from view.

In the operation, referring to Fig. 1,7when the bobbin-winder is swung down, bringing the narrow end of the inclined rim in recess i, as in said gure, spring n forces thelever t back, moving collar et tothe right, with the locking- 8o slide c, thus locking the belt-pulley, as before explained. Swinging the bobbin-winder up, as in Fig. 3, moves lever t to the left, and also the collar a and locking-slide c, unlocking the belt-pulley, as in Fig. 2.

Having thus described my invention, what I claim isl. In a sewing-machine, the combination, with the recessed pulley-shaft provided with the collar and locking-slide, the belt-pulley 9o having the recesses to receive the locking-slide, and the bobbin-winder provided with the camlever, of the pivoted lever having the rightangled extension, bearing a spring, and slotted to receive said cam-lever, the upper end of said pivoted lever being adapted to operate the sliding lock, all substantially as set forth.

ing the end projections, of the shaft-supportsaid projections play when the shaft revolves,

2. In a. mechanism for causing the movesubstantially as described and shown.

5 ments of the bobbin-winderto lock and unlock the belt-pulley, the combination7 with the pulley-shaft having the recess in which the locking-slide is located, and the locking-slide hav- JULIUS C. GOODWIN. Vitnesses:

W. H. WooDHAus, W. H. WooDHAMs, J r.