US282408A - Sewing-machine - Google Patents

Description

(N0 Model.)

I J'QTRIPP SEWING MACHINE No. 282,408. Patented July 31, 1883.

2 I W 8 ZEIW/AEVA 11/ WITNESSES? A F j INVENTOR a I 2 L M CZMZA 17 ATTORNEYS,

PATENT OFFICE.

JAMES TRIPP, on NEW YORK, N. Y.,

AssieNoR TO CHAS. 'r. nnckwiriai AND ELLEN F. BEOKWITH, OF OBERLIN; OHIO.

,SEWING-IMACHINE.

SPECIFICATION formingpart Of Letterslatent No, 282,408, dated July 31, 1883. Application filed February 8, 1883. (No model.)

To all whom it may concern:

Be it known that I, JAMES TRIPP, a citizen of the United States, residing at the city of New York, in the county and State of New York, have invented certain new and useful Improvements in Sewing-Machines, of which the following is a specification.

. My invention relatesto improvements in sewing-machines; and it consists in the peculiar arrangement and construction of the shuttle-lever and feed-lever, wherebyI am enabled to arrange all-the centers in a straight line,

thereby avoiding side draft-+21 great defect which is experienced in machines in, which the levers are crooked round or bent so as to reach the working centers; and, also,in the arrangement and construction of the feed and of the end of the feed-lever operating in conjunction therewith, all as hereinafter more fully described, and indicated by the claims.

The accompanying drawings form part of this specification, and represent what I consider the best means of carrying out my invention.

Figurel is a sectional view of the bed-plate of asewingmachine and a portion of the post with my improvements appliedthereto. Fig. 2 is an under side View of the bed-plate with my improvements applied thereto.' Fig. 3 is an under side view, Fig: 4 a longitudinal section, and Fig. '5 a side view, of the shuttlelever. Fig. 6 is an under side view, Fig. 7 a longitudinal section, and Fig. 8a side view, of the feed-lever. Figs. 9, 10, 11, and 12 are detail views of parts separately.

In each of the views similar letters of .reference are employed to indicate correspond ing parts in all thefigures.

A represents the bed-plate; B, asmall portion of the post of a sewing-machine with my improvements applied thereto.

O is my'improved shuttle-lever, which, as shown, is constructed with a cavity or opening, 0, adapted to allow of its free motion, and at the same time admitting of the pivoting of the axis or bearing D of the feed-lever D to the bed-plate of the sewing-machine, within the cavity or opening G of the shuttle-lever 0, without in any way interfering with the to-and-fro motion of the said shuttlefixed to the bed-plate A, and provided witha cavity or opening, D adapted to allow of the free motion of the same, and also admitting of the pivoting of the axis or bearing of the shuttle-lever to the bed-plate of the machine,

within the opening D of the feed-lever D,

without interfering with the lateral and vertical motions of the feed-lever D. The feedlever D is formed or provided with a flat T- shaped piece, D adapted to joperate within a vertical opening or'slot formed in the center of the feed-piece E. The feed-piece E is sup: ported by the Tshaped portionD of the feedlever D, and it is guided in its motions by means of guides or sockets A, formed on or affi'xed to the bed-plate A. The guides or sockets A may be either cast with the bedplate or separately affiXed thereto; or I can arrange the feed-piece E to operate between a plate or hearing affixed to or connected with the bed-plate A and a gib or bearing-surface, A supported; and controlled in position by a set-screw, A An opening, A, is formed in the bed-plate A, to allow of the free motion of the end D of the lever D. Y

The feed-piece E is constructed in the form of a parallelogram, having a vertical central opening, E, hereinbefore referred to, adapted for'the reception of the T-shaped portion D .of the feed-lever D. On its upper, side the feed-piece E is provided with the ordinary roughened surface or series of teeth, E

The gibs or bearing-surfaces A are so arranged as to allow of the requisite vertical and horizontal movements of the feed-piece E.

The T-shaped portion of the feed-lever D is formed withslightly rounded or curved sides,

as shown by Figs. 6, 7, and 8, for thepurpose of allowing of the free motion of the feed-lever D within the feed.

Having thus described myinvention, what I claim,--and desireto secure by Letters Patent, 1s-

1. In a sewing-machine, ashuttle-lever con structed with a cavity or opening adapted to allow of its free motion, and at the same time admitting of thepivoting of the axis of the IOO feed-lever to the bed-plate ,within the said 4 opening, substantially as shown and described.

2. The combination, with the bed-plate of asewing-machine, of a shuttle-lever provided with an opening adapted to receive the pivotpin "of the feed-lever, and a feed-lever having an opening adapted to receive the pivot-pin of the shuttle-lever, substantially as described.

3. The combination, with the feed-lever D, provided with the T-shaped portion D of the feed-piece E,having the opening E, adapted to receive the said portion D of the lever D, substantially as hereinbe'fore set forth.

4. The combination, with the feed-1ever D, provided with the T-shaped portion D, having rounded or curved sides, of the feed-piece E, having theopening E, adapted to receive said T-shaped portion D of the lever D, and suitable guides for said feed-piece, whereby the latter is adapted to be recip'rocated in a 20 rectilinear path by the vibrating feed-lever,

substantially as set forth.

JAMES TRIPP. [n s.]

WVitnesses:

J OHN S. WALKER, OHARLEs LANG.

Images