US162238A - Improvement in harness-motions for looms - Google Patents

Description

0. w. KENISON Harness-Moti'un for Looms.

Patented April 20,1875.

b e S u a u W THE GRAPHIC CO.PHOTO LITH.39 3:41 PARK PLAGE,N.Y.

OREIN VVpKENISON, OF LAWRENGE, MASSACHUSETTS.

IMPROVEMENT IN HARNESS-MOTIONS FOR LOOMS.

Specification forming part of Letters Patent No. 162,23S, dated April 20, 1875 application filed March 2, 1875.

!['0 all whom 'it 'may concern:

Be it known that I, ORRIN W. KENISON, of Lawrenee, in the county of EsseX and Sta-te of Massachusetts, have invented an Improvement in Harness-Motion for Fancy-Looms, of which the following is a specification:

My invention relates to an improvement in fancy-looms, of the class termed the closed shed, in which all the harnesses are brought to a common level, and the shed closed after each pick.

The object of my invention is to produce a harness-motiou which shall be simple in operation, requiring much less power, and capable of much grcnter speed than in the ordinary Construction of looms of this class. Owing to its peculiar Construction, the operation isso simple as to enable any person of ordinary skill and intelligence to readily manage a loom possessing my present improvement.

The improvements apply to that class of fancy-looms in which the harnesses are raised and lowered by means of a series of uprght levers--one for each harness; the, said levers being supported on a shaft at their centers on one side of the loom, and connected at their upper and lower ends, by straps or other suitable means, with their respective harnesses. At or near the centers of these upright levers project horizontal arms, having on their ends segmental gears, which engage with corresponding racks on the lower ends of the vertical jack-bars.

My invention consists in the employment of two arms placed upon the vertically-acting rods, which are operated by the double crankshaft, the said arms being made to actuate the segment-gears, so as to close the shed at each revolution of the crank-shaft.

The drawings exhibit a portion of a loom embodying my invention. Figures 1 and 2 are vertical sections of a loom, showing the parts in different relative positions. Figs. 3 and 4 are enlarged viewsindetail, showing my improvement.

a represents a portion of the frame of the loom. On the shaft 1) are mounted the harness-levers I b. To each lever is attached an arm, 0, provided at its end with a segmental gear, as shown. These gears engage with 'acks on the lower portion of the jack-bars e. The jack-bars are caused to become engaged with, and disengaged from, the elevator and depressor bars by means of the levers l, actuated by the springs 70, on one side, and the levers i, operated by the pattern-chain h, on the other side-the bent lever l serving to keep the jack-bar pressed forward to engage with the depressor-bar, until the contrary action upon the jack-bar is cause-d bythe action of the pattern-chain upon the lever i. On the main double crank-shaft are mounted the two vertical rods n n", each one having an arm, ff ,arranged atright angles to the jackbars e e, and moving in opposite directions to each other, and corresponding with the movements of the elevator and depressor bars. WVhen the depressor-bar g has carried down the jack-bars to their lowest point, the shed is open, as shown by the position of the harnesslevers in Fig. 2. The bars f f' are made to bear upon the upper and lower edges of the segmental gears, and are brought to their earest proximate position at each revolution of the erank-shaft, thus bringing the harnesslevers into line, and closing the shed at each pick ot' the loom. Instead of havingthe bars ff' bear directly on the upper and lower edges of the segmental gears, they can be made to act directly on the jack-bars e by passing them outside of the jack-bars, and causing them to act on pius which may be placed in the jack-bars.

It will be seen from the foregoing description that, as the elevator and depressor bars g g and also the bars ff', are farthest apart, the rackbars are at their highest point, and the shed is open. The crank-slaft acting upon the vertical rods n n', the bars f f' are cansed to press upon the segmental gears above and below, thus bringing the harnesslevers into line when the shed is closed, the position of the parts being shown in Fig. 1.

This Construction and arrangementof parts admits of a limited, and consequently very rapid, motion of the vertical bars n n', causing a correspondingly rapid motion of the loom. The parts are not liable to get ont of order, and the Simplicity of the Construction and operation of the loom enables a person of ordinary skill and intelligence to manage the loom without difficulty.

3. The oombination of the harness-aotuating levers b, provided with a horizont-al arm, c, terminutig in a geared segment, and slidiug jack-ber g, provided with a raok adapted to gear with the arm 0, all arrauged and operating together in the manuer and for the purpose herein set forth.

In testimony whereof I have signed my name to this speoifioa-tion in the presence of two subscribing witnesses.

OREIN W. KENISON.

Witnesses:

ANDREW O. STONE, F. E. CLARKE.

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