US327925A - Chaeles edwabd device - Google Patents

Description

(N0 ModeL) O. E. DEVINB.

THREAD RELEASER FOB. SEWING MACHINES.

No. 327,925. Patented Oct. 6, 1885 UNTTED STATES PATENT OFFICE.

CHARLES EDW'ARD DEVINE, OF PLATTSBURG, NEW YORK, ASSIGNOR OF ONE-HALF TO CHARLES PAXTON, OF SAME PLACE.

THREAD-RELEASER FOR SEWtN'G-MACHINES.

SPECIFECATION forming part of Letters Patent No. 327,925, dated October 6, 1885. Application filed March 12, 1885. Serial No. 158,604. (No model.)

To aZZ whom it may concern.-

Be it known that I, OHARLEs EDWARD DE- VINE, of Plattsburg, in the county of Clinton and State of New York, have invented certain new and useful Improvements in Thread- Releasers for Sewing-Machines; and I do hereby declare that the-following is a full, clear, and exact description of the same.

My invention is applicable to those machines which are furnished with plate tension-regulators; and it consists in means by which the operation of the presser-bar lifter will simultaneously raise the presser-foot and release the top thread from tension, thus giving to the operator the use of both hands to take goods from under the presser-foot by doing away with the necessity, when the presser-foot is raised, of the operator keeping one hand on a tension-liberator or of pulling some slack thread through tension on the top of machinearm, the omission of this latter often causing the breaking of the thread or the bending or breaking of the needles. The chance of this is entirely obviated by my device, which also always keeps the thread taut, preventing slack thread when the operator begins to sew.

For full comprehension of my invention reference must be had to the annexed drawings, in which Figure 1 shows a side view of part of the arm, face-plate, 850., of a sewingmachine to which my invention has been applied, with the parts in the position they occupy while sewing is being done; Fig. 2, a similar view showing the tension released; and Fig. 3, a front view of face-plate, 850.

Similar letters of reference indicate like parts.

A is the arm, A the head, B the face-plate, and C the presser-bar, of ascwing-machine, all

these being of any ordinary and suitable construction.

D is the presser-bar lifter, acting, as usual, against a stud, c, on the presser-bar.

E is the tension leaf, plate, or disk, secured The operation of myinvention is as follows:

\Vhen the operator desires to remove the goods from under the presser-foot, she raises the presser-bar lifter D, and this simultaneously acts upon the presser-bar C and the lever F, and through G upon the plate H,withdrawing it from the tension-plate E at the point e, where the thread passes through the plate, thus freeing the tension and allowing the thread to be drawn through. It must be understood that any other combination of equivalent elements may be used to transmit the action of the presser-bar lifter to the tension device to free thread from same.

What 1 claim is as follows:

In a sewing-machine, the combination,with the presser-bar lifter, of a pivoted bell-crank lever with turned-up end, connected with the lower plate of the tension device, and operated directly by the presser-bar lifter to loosen the tension simultaneously with the raising of the presser-bar, substantially as described.

CHARLES EDWARD DEVIN E.

\Vitnesses:

PATRICK JosErH SCANLON, CHARLES HENRY BooTH.

1 l l l, I, l l

It is hereby certified that the name of the assignee of one-half interest in Letters Patent No. 327 ,925, granted October 6, 1885, uponthe application of Charles Edward Divine, for an improvement in Thread-Releasers for Sewingdvlachines, was errone ously Written and printed Charles Paxton; that the name of said assignee should and that the said Letters Patent should the same may conform to the record of the have been Written and printed Charles Parton be read with this correction therein that case in the Patent Office.

Signed countersigned, and sealed this 24th day of November, A. D. 1885.

H. L. MULDROW, Acting Secretary of the Interior.

[SEAL] Countersigned M. V. MONTGOMERY,

Commissioner of Patents.

Images