US58865A - Improvement in hand-looms - Google Patents

Description

UNITED STATES PATENT OEEIGE.

DANIEL HENDENHALL, OF FAIRFIELD, IOWA.

IMPROVEMENT IN HAND-LOOMS.

Spccilication forming part of Letters Patent No. 58,865, dated October 16, 1866.

To all whom it may concern:

Be it known that I, DANIEL MENDENEALL, of Fairfield, Iowa, have invented certain new and useful Improvements in Looms; and I do hereby declare the following` to be a full, clear, and exact description of the same, reference being had to the drawings which accompany this specification and form a part of the same, and to the letters of reference marked thereon.

Figure l is a perspective View of the rear end of the loom. Fig. 2 is a perspective view of the front end of the same.

In Fig.` 1, a al is the batten, constructed in the ordinary manner, and hinged t0 the framing A, near the bottom of the loom. The lever e is hinged tothe cross-bar a2 of the batten, near its center, and extends to and the opposite end rests upon the ta-ppet-cylinder o. To the lever c is attached a jack, t, the catch of which embraces a tappet upon the cylinder o as the hatten which carries the lever e is thrown back, and by the return motion of the hatten a partial revolution of the tappet-cylinf der o is produced.

B is a rod extending across the rear end of the framing, supported by the uprights c c', upon which the ends of the treadles 1 2 3 4E and l 2' 3 f1' are secured, four of which are upon each side of the loom immediately above the tappet-cylinder o, the treadles being operated by the action of the tappets s s s s of said cylinder. The front ends of these treadles are each connected with the frames of the heddies E E E E by means of wires or braces It 7L h h.

Underneath the tappet-cylinder o are the sub-treadles m ax m, corresponding to and parallel with the treadles 1 2 3 4, and arranged at such equal distance below the cylinder o as to be operated by the before-mentioned tappets s s s s. The front ends ot' these sub-treadlesfv w a: .fr are connected with'the heddle-frames in a like manner as the upper treadles. The action of the tappets upon the upper and sub treadles alternately produces a corresponding motion perpendicularly otl the heddle-frames.

L, Fig. 1, is a sliding bracket attached to the upper cross-piece of the batten, working horizontally upon a guide-pin, N, by means of a slot near the upper edge. Immediately underneath and parallel with this slot is an oblong opening, which terminates in an gular slots ot' a uniform angle above and below, the center of which forms a wedge of the desired angle, terminating in straight sides formed by the continuation of the angular slot in lines parallel to the plane of the bracket. The bracket L works upon the outside of the heddle-frame A', and receives its reciprocating motion from the hatten.

The heddle-frames E E E E are each provided with a pin, V, inserted in the outside,`

end ot the frame, and working in the oblong square opening ofthe bracket L.

The operation ot' this arrangement is as follows: rlhe batten, being against the web, is drawn forward, the jack turning the cylinder o, the tappets of which raise the heddle E sufciently to bring the pin V above the point of the wedge M, thus partially opening the shed of the warp. As the hatten returns, the point of the wedge comes in contact with and raises the pin V, and also the heddle to which it is attached, holding open the shed during that portion of the vibration of the batten till, reaching the point of the wedge again, the pin passes under and another pin has been raised by the tappets and treadles, which is in turn raised and lowered in the same manner.

It will be observed that the full motion of the heddle is produced bythe combined movements of the treadles and brackets, as before described.

The operation of the wedge M and the slots with which it is surrounded has a positive and constant action upon the movement of the heddles, holding them or moving them with perfect certainty and precision, as may be requisite.

In Fig. 2, m m are levers hinged to arms which are framed into the cross-bar a2, and extending backward nearly to the rod B. Near their junction with the arms, and forward of the hinges, the lower surfaces of these levers are provided with notches or oii'sets. Attached to the cross-piece A3, and near itsl center, is the rocker-arm I, having a semicircular head, H, and held in position by the cap-block H. The notches in the under side ot' the levers m m are intended to operate the head H, as they are operated back and forth by the batten, the tappets a a raising each alternately7 so as to permit the free action ot' the other.

The picker-staffs F F, placed outside of the ,by means of the cords gg, secured in the holes which is provided with a pin fitting into Suitthe batteri releases it by ineens of the crossframing, are pivoted at the bottom tothe bars G Gr, and are connected with the rocker-arm I J J. The Vibrations given to the, rocker-arm I by the action of the levers m m operate the picker-stads alternately, giving; the requisite force and direct-ion'to the shuttle.

In Fig. 1, 5 is a hinged bar, the rear end of able holes in the cylinder O as the hatten comes forward, while the backward motion of 'bar ofthe hatten, which presses upon the same. In the saine figure, and operating at nearly the same point upon the cylinder 0,1's a pawl, 6, which at every partial revolution of the cylinder drops behind a suitable tappet thereon, and secures it in its proper position rigidly.

The lower bar of the heddle-fraines may be so constructed as that the Wires may be at-y tached to a separate piece, which may he oonnected or disconnected with the frames at;

pleasure. i

Having,` thus fully described my said invention, what I claim as new, and desire to secure by' Letters Patent, is-

rlhe sliding,` bracket L, with its openings and wedge M, and the pins V V V V, all Constructed and operating in the ina-nner and for tliepurposes set forth.

2. The combination and arrangement of the treadles l 2 3 4 and the sub-treadles x x w w with the tappet-cylinder 0 and jack fi, as and for the purposes set forth.

3. The hinged levers m m and tappets n a, in combina-tion with the hatten and With the rocker-arm I, head H, cords g (hand pickerstaffs F F, said several parts being respectively constructed and the whole arranged for use as described.

DANIEL MENDENHALL.

W'iti'iesses WM. T. D ENMS, WRIGHT LANCASTER.

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