US29785A - Improvement in sewing-machines - Google Patents

Description

D. HSKELL.

Sewing Machine.

Patented Aug. 28, `1860.

No. 29,785.v

UNITED STATES PATENT OFFICE.

IMPROVEMENT IN SEWING-MACHINES.

Specification forming part of Letters Patent No. 29,785, dated August 2S. 1860.

To aZZ whom it 11i/ty concern.-

Be it known that l, DAVID HAsKELL, of Georgetown, in the county of Essex and State of Massachusetts, have invented a new and useful Improvement in Sewing-Machines and I -do hereby declare that the following is a full, clear, and eXact description of the same, reference being had to the accompanying drawings, forming a part of this specification, in whichy Figures l and 2 are elevations at right angles to each other of the framing of a sewing-machine constructed with my improvement. Fig. 3 is a plan of the same with the stationary arm which carriesV the presser removedto leave the whole ofthe bed exposed. Fig. 4 is a plan of a movable plate fitted to the bed.

Similar letters of reference indicate corresponding parts in the several figures.

To enable others skilled in the art to make and-use my invention, I will proceed to describe its construction and operation.

A B C represent the bed or worktable, which,instead of being made with an unbroken flat horizontal surface, as is generally the case, is made with an isolated upright post, C, connected at the bottom by a foot, B, with the main portion A, whose upper surface is ofthe same level as the top of the post C. This post C may be made as small as may be desired, in order that articles of stiff material of small` as well as of larger size may be placed upon it in the mannerillustrated by thc piece of work represented in red outline in Fig. Z-that is to say, with their edges lapping over it on either or all sides-and be turned round upon it in any direction. The needle works through a needle-hole, a., in or near the center of the said post, and may be made to perforate the fabric under operation either by an upward or downward movement 5 but it will be more convenient to have the vneedle work with an upward movement, the needle-bar in such case working through the post, and being connected with a lever, E, working within the foot-piece B or havino an f other suitable connection directly over the top of the post C. This construction of the bed with an isolated upright post is specially adapted for sewing-machines for shoe-makers use, and makes a machine capable of doing much of the work on shoes yand boots which it has been difficult and in some cases impossible to do with thc machines heretofore used.

In order that the same machine may be adapted for straightforward flat work, I provide a movable plate, F, of the form shown in Fig. i-that is to say, with a recess, b, to fit around the post C, and with its opposite side straight to fit to the part Athe said plate being formed with a'beveled edge to fit and rest in a halfdovetail recess, C, Figs. 2 and 3, in the part A, and having a shoulder, d, provided for its support on the post A. This plate is shown in section in blue color in Fig. 2 applied to the bed, and it will be understood by reference to that ligure th at the said plate combines with the post and the part C to form an unbroken at bed not differing practically from the flat bed of the sewing-machines in common use.

Vliat I claim as my invention, and desire to secure by Letters Patent, is-

The arrangement of the isolated upright post C with the notched movable pla'te F, in the manner and for the 'purpose herein shown and described.

p DAVID HAsKnLL. y

Vitnesses:

RIcHD. TENNEY, EDw. I). `VILDES.

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