US691375A - Weft-motion for haircloth-looms. - Google Patents

Description

No.4 69l,37.5. Patented 1an. 2|, |902.

w. W. HARRISON & J. HLT. WEFT MOTION FOR HAIRCLOTH LOOMS.

(Application led Jan. 17, 1900. Renewed June 13, 1901.)

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No. 69l,375. Patented 1an. 2|, |902.

W. W'. HARRISON &J. HLT. WEFT MOTION FOR HAIBCLTH LO'DMS.

(Application med Jan, 17, 1900. Renewed June 13, 1901.)

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No. 69I,375. Patented 1an.' 2|, |902.

W. W. HARRISON 8|. J; HLT.` WEFT MOTION F0fl HAIBCLOTH LOOMS.

(Applicatidn filed. Jan. 17, 1900. Renewed June 13, 1901.) (No Model.) 3 Sheets-Sheet 3.

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UNITED STATES Frison.

PATENT \VILLIA1WI WV. HARRISON AND JOHN` HOLT, OF PAVTOKET, RHODE ISLAND, ASSIGNORS OF ONE-THIRD TO CHARLES E. PERVEAR, OF PAWTUCKET,

RHODE ISLAND.

wEFT- MOTION FOR -eAlRoLoj'H-Loolvls.

SPEGlFlLCATION forming part of Letters Patent 1\TO.`691,375, dated January 21, 1902.

Application iiled January 17, 1900. Renewed June 13, 1901. Serial No. 64,476. (No model.)

To @ZZ whom it may concern:

Be it known that we, WILLIAM W. HARRI- SON and JOHN HOLT, of Pawtucket, in the county of Providence and State of Rhode' Island, have invented certain new and useful Improvements in Wett-Motions for Hair-cloth- Looms; and We do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompaxo nying drawin gs, and to the letters of reference marked thereon, which form a part of this specification.

This invention relates torlooms for weaving haircloth, and more especially to the mechanism for operating the nippers that select the hairs to form the weft or filling of the cloth. It is fully explained and illustrated in this specification and the accompanying drawings.

Figure 1 shows a front elevation of a por- .zo tion of a loom-lay with parts of the loom immediately connected with the nipper-motion.` Fig. 2 represents an end elevation of a loom with the nipper-motion. Fig. 3 is a perspective view of the nipper-m otion with some partsl z5 of the loom.

The object of this invention is to make the' N is a vertical plate made at and broad in l 4o its upper half and having a slot made in itl that slides on the main shaft D between the hub of the crank J and the cam C and is guided at its lower end, which is made round, in a stand I, fast on the end frame A. The

cam has a heart-shaped groove S in its outer side, in which a friction-roll R, held on a stud in the plate N, travels and gives an up-anddown motion to the plate.

Eis a connecting-bar the upper end of which is held between ears on the plate N by a pin G, on which the bar has a limited swinging motion, and its lower Yend is held on a pin in the outer end of the arm P, fast on a horizontal rocker-shaft H, which is held in bearings in the stands L L, fast to the floor. In this way a rocking motion is given to the shaft H by the cam C everytime the shaft D and cam revolve and the lay beats up.

On the front of one end of the layB a dove- Vtailed bar K is attached to form ways for the clamp V to slide on. The clamp V has a stud Z in its face, which stud is tted to slide in a slot in the upper end of what may be called a picker-stick F, as it performs the function of placing the filling in the warp. The picker-stick F swings back and forth with the [lay on a pin T, held in a shoe W, which is held on a pin in a step 0fast on the floor, to swing in and out from the end frame A. (See dotted lines in Fig. 1.) This latter motion is given to the stick F by the connectingrod X, one end of which is pivoted to the shoe W and the other end to the arm Y, fast on one end of the rocker-shaft H. (See Fig-1.)

The nipper-bar Af, with the nipper M, is held at'its outerend on a block C', which slides in ways made on the top of the lay B. This block C has a pin D in it (see Fig. 2) that connects it to an ear on the top of the clamp. It will readily rbe seen that the motion required to push the nipper-bar through the shed of the warp and return it again is obtained from thecam O through the sliding plate 'N operating the rocker-shaft H by the connecting-rod to arm P and the rocker-shaft operating the picker-stick F by means of the larm Y and the connecting-rod'X, and as all these parts are rigid the motion of the nipper asto distance and time will always be the y same with regard to the movements of the other parts of the loom. By setting the arm C on the shaft D properly with regard to the position of the crank J that moves the lay and shaping the cam to allow the required amount of dwell for the friction-roll to allow the lay to beat up a certainty and accuracy of the motion of the nipper-bar can be counted on that will admit ofl a considerable im crease in the speed of the loom and at the same ing plate with a friction-roll operated by said lcime improve lche product. cam, and means for operating said picker- Having thus described our improvements, stick by said plate'and friction-roll, substan- 15 We claim as our invention and desire to secure tally as described. Y 5 by Letters Patenn- 'In testimony whereof We have hereunto set In a hairelothdoom the combination of a our hands this 6th day of January, A. D'. 1900.

ypicker-stick a nippel-bar connected thereon, WILLIAM W' HARRISON hold the picker-stick, a pin passing through xo sides of said shoe and the picker-stick to allow the stick to move With the 1ay,'amain shaft, a donblelcam fast thereon, a vertically-slid- In presence of H. E. BARLOW, BENJ. ARNOLD.

a shoe pivoted in a step fast on the fioor to i JOHN HOLT.

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