US902194A - Stiffening-strip. - Google Patents

Description

A. A'. ACKBBMAN.

STIFFBNINGSTBIP. PrLIoATIoI HMD-S'B11; 4. ma,

Patented Oct. 27, 1908.

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UNITED STATES T OFFICE.

ALBERT A. ACKERMAN, OF CHICAGO, ILLINOIS, ASSIGNOR, BY MESNE ASSIGNMENTS, TO

WARREN FEATHERBONE COMPANY OF MICHIGAN, OF THREE OAKS, MICHIGAN, A COR- PORATION OF MICHIGAN.

STIFFENING-STRIP.

To all whom it may concern.'

Bc it known that I, ALBERT A. AGKERM'AN, a citizen of the United States, residing in the city of Chicago, county of Cook, and State of Illinois, have invented a new and useful Improvement in Stiii'ening-Strips, of which the following is a specification.

My invention relates to stiffening strips, such for example, as lare used for dress and corset stays, and the objects of my invention are: First: to produce a stiffening strip which shall be pliable in a direction across the strip. Second: to produce a strip which shall require a comparatively small amount of thread for securing' the individual cords together in the form of a fiat strip, and third: to increase the unity of the strip by minimizing the danger of separation of the different cords when the outer threads become accidentally broken at points here and there along the strip.

I attain my objects in the manner illustrated in the accompanying drawings, in which Figure l represents a single bundle or cord of fibers. Fig. 2 represents a stiffening strip composed of three cords stitched together. Fig. 3 is a cross sectional view of the strip on a greatly enlarged scale, showing the manner of looping or interlocking the outer threads. Fig. 4L is a cross sectional view showing each stitch or bight of the outer thread inclosing two longitudinal cords. In Figs. 3 and 4 the outer threads are shown in a loose condition for the purpose of illustrating the course of each thread in the preferred construction. Fig. 5 is a face view of the finished product upon a scale approximately natural size.

Similar letters refer to similar' parts throughout the several views.

A single cord is shown in Fig. 1 and consists of a number of fibers a bundled together and permanently held by the wrapping thread Z9. The said bers a may consist of various substances, such as tampico, fibers of horn, or bers of feathers cords and blades formed of the latter substance being commonly known as feathcrbone.

In the forming of a stiffening strip or blade according to my invention three or more cords constructed as above described are brought side by side and then stitched in a Specification of Letters Patent.

Application filed. September 4, 1903.

Patented Oct. 27, 1908.

Serial No. 171,943.

Zigezag manner, as best shown in Fig. 2. In this Zig-zag formation the stitch extends obliquely from one edge of the strip to the other, and then returns obliquely across the strip, but always progresses along the strip in the same direction.

The form of stitch is best shown in Figs. 3 and 4 in which the upper thread c is engaged by the lower thread d by means of a looping or interlocking shown at all. It is desirable that the lower thread Z in thus engaging the upper thread c pass backward upon itself in the manner shown, thereby making a true stitch. By this construction when the outer threads are drawn tight, as occurs in actual practice, there is a knotting effect and the outer threads will be able to hold the cords a together even though said outer threads be broken in many places. This results in a distinct advantage over the form of stay where the outer threads are wound around the cords, for when wound, if the thread breaks, it tends to greatly weaken the strip. i

It will be understood that the stitching may be single or multiple, that is to say, there may be two threads lying parallel caught by one thread at the bottom, or caught by two threads at the bottom, but in either event there will be a single set of stitches. The interlocking occurs at the edge ing the individual strands together, rendering such wrapping or binding unnecessary. If preferred, however, an additional binding or wrapping thread may be used. The number of stitches in any straight stretch or reach of the zigzag stitching will depend of course upon the width in which the strip is manufactured; but it is essential that in each ofsaid straight stretchesor reaches of the stitching there shall be a plurality of stitches. That is to say, after each change of direction of the stitching to form the zigzag effect there shall be a plurality of stitches before the direction is again changed.

It will be obvious from an examination of the drawings and from the above description, that the strip produced by this manner of stitching will be leXible at the points where the outer threads interlock or engage each other, thereby greatly improving the quality and flexibility of the strip. Another advantage in this construction is that a comparatively small amount of exterior thread is required for securing the individual cords together.

In producing a strip for practical use, it is within my contemplation that the strip may be sized, calendered, or pressed and covered, as preferred by the manufacturer.

lhat I claim as new and desire to secure by Letters Patent is:

l. An article of the class described, coinprising a plurality of continuous strands arranged side by side and stitching Zig-zagged across all the strands, the threads of the stitching interlocking at a plurality of points in each reach of the Zig-Zagged stitching whereby the strands are all bound and secured together solely by said stitching into a flat resilient blade or tape.

2. An article of the class described, comprising a plurality of continuous resilient strands arranged side by side and a continuous Zig-Zagged row of stitches therethrough7 each reach of said zig-zagged row of stitches being arranged to embrace all of the strands whereby they are all bound and secured together into a flat resilient blade or tape solely by said stitching, there being a plurality of stitches through said blade in each of the reaches, said strands consisting of ibered quill portions of feather bound together by a wrapping thread.

3. An article of the class described, co1nprising a plurality ot continuous resilient strands arranged side by side and a continuous Zig-Zagged row of stitches therethrough, each reach of zig-Zagged row of stitches being arranged to embrace all of the strands whereby they are all bound and secured together into a flat resilient blade or tape solely by said stitching, there being a plurality or' stitches through said blade in each of the reaches.

4. An article of the class described, coniprising a plurality of continuous resilient strands arranged side by side and a continuous zig-Zagged row of stitches therethrough, each reach of said zig-zagged row of stitches being arranged to embrace all of the strands whereby they are all bound and secured together into a flat resilient blade or tape solely by said stitching, the strands consisting of ibered quill portions of feather bound together by a wrapping thread.

5. An article of the class described, co1n-V prising a plurality of continuous resilient strands arranged side by side and a continuous zig-zagged row of stitches therethrough, each reach of said Zig-Zagged row of stitches being arranged to embrace all of the strands whereby they are all bound and secured together into a fiat resilient blade or tape solely by said stitching.

ALBERT A. ACKERMAN. Vitnesses OTTO J. VEIL, JENNIE MCDONALD.

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