US146094A - Improvement in tuck-creasers for sewing-machines - Google Patents

Description

l u EPwELL.,

vTuck-(realsersfor Sewing-Machines.` N0, 145,094 Patented De. 30,4873.

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EDWARD POWELL, OE. NEW YORK, N. Y.

IMPROVEMENT IN TUCK-CREASERS FOR SEWING-MACHINES.`

Specification forming part of Letters Patent No. 146,094, dated December 30, 1873; application led September 5, 1873.

vice with a marker composed of two plates,

made by bending a strip of elastic material, the upper plate having a curved projection, which presses the cloth down against the marking-edge, and the lower plate provided with a straight tongue, the oflice of which is to keep the cloth smooth while being marked, the

i two plates being guided in their operation by a post on the lower projecting up through a slot in the upper plate.

It has been found desirable, when fabrics are marked for tueking by a sewing-machine attachment, that the cloth to be marked shall be stretched smoothly at the time the mark is made; and Vit is also desirable, in some instances, to mark for tueking several thicknesses or folds of cloth at the same time with certainty and distinctness. These results, it is believed, are accomplished by my tuckmarker, the subject of this invention, as will appear in the following specification and draw- J ings; wherein Figure lis a plan or top view of my improved tuck-marker; Fig. 2, a side elevation of same; Fig. 3, an end elevation of same; and Fig. 4, aside elevation of :markingV device, showing the manner of producing mark.

Similar letters of reference indicate like partsin the several figures.

A is a tuck-markin g attachment for a sewingmachine. That part which is attached to the plate of the machine and the striking-bar may be of any of the well-known forms of construction, and Ltherefore, do not claim any part of them as of `my invention 5 but my invention is confined solely to the actual marking device, B. This marker may be constructed from thin steel or any other elastic metal, bent so as to form an upper and lower plate, a and b. The upper plate, a, at or near its outer eXtremity, has formed upon, and at right angles to it, a projection, cthe lower end of this projection being slightly curved, as at d. The lower plate, b, is constructed at its inner extremity, with a prolongation or tongue, e. To the lower plate, b,'is firmly secured, at right angles to its surface, a guide-pimf, this pin passing through a slot, y, formed in the upper plate, a. (See Figs. l and 2.) The device above describedis rmly secured, in any desirable manner, to the spring-bar F, this spring-bar being likewise secured to the sliding bar G, the sliding bar G having a small plate, h, projecting from or near its outer end. At right angles to the i plate or projection h, and formed with, or connected to, said plate, is raised a ledge, i, (see Figs. l, 3, and 4,) the edge of this ledge being sharpened to form a kniteedge. To the under side of tongue e a supportingpoint, o, -is affixed, so that said tongue and theledge fi are raised, more or less, from` the surface of the face-plate of the sewing-machine, in this' way increasing the throw ofthe projection o.

My tuck-marking device being constructed substantially as above described, its operation is as follows: The cloth to be marked for tucking is placed under the spring-bar F and un-l der the tongue e, and the moment the striking-` If it should be desired to mark at the same time i several thicknesses or folds of cloth, it may be accomplished with 'the same facility as would be i the marking of a single thickness of cloth;

for, as will be seen, the projection o, being provided with a curved point, which workson the 1 outer side of the ledge i, itwill accommodate itself to several thicknesses of cloth, and force them over the knife-edge with the same facility as it would a single thickness, forming upon ,each thickness an equally distinct marking.

Having,` thus described my invention, what I claim as new7 and desire to secure by Letters Patent, ism

In a tuck creasing or marking attachment for sewing machines, the spring-plates, provided With a guide-pin, f, to prevent lateral movement, in combination With the prolongation or ton gne e and supporting-point o.

EDWARD POWELL.

Witnesses IH. L. WATTENBERG, C. J. MILLER.

44, mm L

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