USRE2843E - Improvement in weaving - Google Patents

Description

UNITED STATES PATENT OFFICE.

WILLIAM SMITH, 0E NEw YORK, N. Y.

IMPROVEMENT 1N WEAVING.

Specification forming part of Letters Patent No. 9,653 dated April 5, 1853; extended seven years; Reissue No. 1,656, dated June 18, 1867; Reissue No. 2.843, dated January 14, .1868.

DIvIsIoN A.

To all whom t may concern Beit known that I, WILLIAM SuITII, of the city, county, and State of New York, weaver, have invented, made, and applied to use certain new and useful Improvements in Weaving; and I do hereby declare thc following to be a full, clear, and exact description of the same, reference beingh ad to the annexed drawings, making apart of this specification, where- 1n- Figure l is a sectional elevation of the loom employed by me. Fig. 2 is a front view of the lay, and Fig. 3 is a perspective view illustratin g the mode of weaving the fabric that is formed by this loom.

The like marks designate the same parts.

The object of this invention is to produce, by weaving, a fabric that has a center warp inclosed on each side by weft-threads held in place by interlaced warps.

The nature of this division of my said invention consists in the process by which the weavin g of such fabric is accomplished. I will, however, first proceed to describe the looni employed.

a is the frame of the loom, of anyconvenient form, carrying the drivingshaft b, that is moved by any competent power.

c are the connecting-rods from cranks on the shaft b to the lay d, that is supported by and vibrates on a rock-shaft 1.

2 is a warp-roller, kept from turning freely by the friction of a strap or any usual means, so that the warp 3 is given off when at the required tension, as now practiced. The warp 3 is to be of indiarubbcr strips, if the fabric is to be corrugated and elastic, or this warp may be cotton or any fibrous substance, where a thick quality of goods is required. This warp passes through the stationary heddle 4, and through the reeds c in the lay, over the breastbeam f, the fabric as it is formed being wound by any usual means on the roller g.

5 is the warp-roller, supplying the warp 6 for the two sheds. The warp passes through heddles 7 and 8, and through the reeds e, forming the fabric with the warp 3 and filling, as hereinafter shown. The heddles 7 and 8 are worked by any competent means, the one being fitted to ascend as the other descends. In

the drawings these are shown as connected by straps 9 over a pulley, 10, the straps ll and 12 being connected from the under side to treadles, to be worked by cams from an auxiliary shaft, or by the feet in the usual Ina-nner when power is not used. The lay itselfin front ofthe reedse is shown as formed to receive two shuttles havin ga center piece, 13, with a rib on each edge, an upper piece, 14, and a lower piece, 15, all attached to the body of the lay, so as to receive and sustain the shuttles h and by the ribs taking grooves in the top and bottom of the back edge of the shuttle, and the length of the shuttle being greater than the width of the reeds one end enters the groove before the opposite end is disenga-ged The shuttles are propelled by means of a frame, 7c, with projections depending from the same to give the blow and propulsion to the upper shuttle, and the lower shuttle is moved by a similar frame, Z, and projections. Fig. l. shows a means by which these frames may be moved, the ends of the top and bottom parts bein gconnected by straps over pulleys, so that one travels one way while the other travels in the opposite direction, and by an ordinary picking motion, if in a power-loom, or the usual strap for a hand-loom applied to move either frame, the shuttles are thrown in opposite directions through the sheds above and below the warp 3. This loom is especially intended for use in weaving corrugated elastic fabrics, several pieces being woven at the same time.

Instead of the frame 7c and l, racks may be used, that in theirmotion rotate pinion-wheels iixed on the lay that take a rack in the side of each shuttle, one pinion takinghold of one end of the shuttle before it clears the other pinion, thus drawing the shuttle through the shed, even if the motion be not sudden enough to throw the shuttle; or both shuttles may be thrown through the sheds in the same direction atthe same time.

The two shuttles carry bobbins with filling, as usual, and the loom in working form a fabric, as shown in large size in Fig. 3, the warps 6 passing up and down through the stationary center warp, 3. The lling from the' upper shuttle, t', forms a fabric on one side of the warp 3, while the filling from the lower sh uttle, h, forms a fabric on the under side. 'Ihus the Warp 3 is inclosed, and in Weaving indiarubber elastic goods, my loom and mode of weaving are especially useful, and have advantages over other looms for the following reasons, which reasons apply to a certain eX- Y and forming a Woven pocket for the said cord. ,In this mode of Weavin the fabric has ribs produced on its surface, caused by the indiarubber in raising or lowering embedding itself, leaving the india-rubber thread loose within the Woven covering Which is raised on each side, but by my arrangement, the india-rubber being stationary, but a slight rib is formed on the surface of the goods, and the rubberis held tightly by the warps, and is not liable to draw into the fabric at its ends when said fabric is cut crosswise of the rubber.

Second. Where two shuttles have been used with different or the same kinds of filling, one has passed through the shed, and then the india-rubber raised up to let the second shuttle pass beneath it. This produces the same imperfections in the goodsVI that are manufactured.

Third. With boththe foregoing old methods for weaving elastic goods, the indiarubber being moved against the surfaces and edges of the reeds is subject to constant wear and friction, often breaking the india-rubber warp, Whereas, in my loom the rubber remaining stationary is not subject to as much Wear.

Fourth. Where but one shuttle is used in Weavin g elastic fabrics an expense is incurred which can be saved by my loom, as these fabrics are usually formed entirely with silk, while in mine I can use silk from one shuttle to form the side which is seen, while a filling of cotton or similar fabric from the other shuttlc may form the under side, thereby saving much cost for material.

What I claim, and desire to secure by Letters Patent, is

The process herein specified of weaving, consisting in the use of stationary Warps, in combination with moving warps and iilling that inclose such stationary Warps, substantially as set forth.

In Witness whereof I have hereunto set my signature, this 7th day of September, A. D. 1867.

WM. SMITH.

IVitnesses:

Crus. H. SMITH, GEO. T. PINOKNEY.

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