US140013A - Improvement in loom-temples - Google Patents

Description

N. CHAPMAN.

Loom-Temples. N0 140 013. Patentedjun e17,l873.

Gilt :14 IE "n": Th 1 D k Q T 5 Flg i. R l w Q WITNESSES.

, PATEN NATHAN CHAPMAN, on HorEDALE, MASSACHUSETTS.

IMPROVEMENT IN LOOM-TEMPLES.

Specification forming part of Letters Patent No. 140,013, dated June17, 1873; application filed J une 6, 1873.

To alt whom it may concern:

Be it known that I, NATHAN CHAPMAN, of Hopedale, Worcester connty, and State of Massachusetts, have invented certain new and useful Improvements in Temples for Looms; and I hereby declare the following to be a full and exact description thereof, reference being had to the accompanying drawings forming part of this specification.

The nature or essence of my invention consists in arming the toothed rollers of temples with a step or pivot of hard metal, to turn against some part of the frame or case of the temple, and hold the roller on its axis against the draft of the cloth; and in making the interior end of said pivot hollow and fitting it to turn on the end of the stud with the roller. Also, in a sheet-metal plate, under the stock of the temple, to cover thespring under the slot and keep out the waste, dust, and dirt.

The drawing, Figure 1, is a plan of a temple with my improvements, with the cap turned up to show the toothed roller. Fig. 2 is an elevation of one side with the cap down. Fig. 3 is a plan of partof a temple modified in some of its parts, with cap raised. Fig. 4 is an elevation of the same with the cap partly raised.

In these drawings, A is a stand of cast-iron to be fastened to the breast-beam of the loom by one or more bolts in the slot B. This stand has two vertical studs, 0 and G, to which the stock D is fitted and arranged to traverse, the stock being slotted for the studs to pass through; which studs are provided with caps fastened by screws to hold the stock on the studs. The top of the stand A, and the under side of the rear portion of the stock D, are grooved to receive the spiral-spring D shown in dotted lines, which presses the temple forward and allows it to be pressed back by the lay in the process of weaving. The top of the stock is notched down at D so that when it is pushed back the spring 1) forces the notches up onto the cap of the rear Stud 0 and holds the temple back until the rear end is pressed down, when the spring pushes the stock forward again. The fore end of the stock D may be made in the form shown in the drawing, or in such other form as will answer the purpose, and is provided with a studpin, E, fastened in the stock for the toothed roller E to turn on, shown in Fig. 1. The toothed roller E may be made of wood or metal, but I prefer them made of hard wood with steel-pointed teeth set with their points inclined toward the stock of the temple. The action of the cloth on the teeth of the roller exerts a heavy strong pressure on the front end of the roller, and causes it to wear away, and also causes much friction to resist the turning of the roller. To avoid most of the friction and resistance, and prevent the wearing away of the wood, I insert a hard metal step or pivot, F, in the end of the wooden roller E and make the end of this step F conical or hemispherical, to turn against the inside of the lug G on the cap H of the temple with very little friction or resistance, at the same time that it holds the roller on the stud against the action of the cloth which tends to draw it off. I also prefer to bore out the inner end of the step F and fit it to the end of the stud-pin E so that it forms a bushing in the end of the roller to turn on the pin. There is a curved plate, 0 of sheet metal fastened on the stud G to cover the spring under the slot in the stock D, and keep outthe waste, dust, and dirt. The cap H is hinged in the slot of the stock on the pin J, to cover the roller E and it has a lug, G, projecting down at the end by the step or pivot F, so that the step turns against the lug which holds the roller on the stud E against the action of the cloth which tends to draw it off the stud. The inside of the lug G may be chilled in casting to make it hard to resist the wear of the pivot F, or the lug may have a piece of hard metal fastened on it, which may be made conical or hemispherical; and the end of the step or pivot F may be made flat, hollow, or countersunk to run against the piece of hard metal on the lug. The cap H has a chamber, I, on the top for the spring-bolt J which may be pushed back by the screw K, when the cap is to be raised, as the bolt J catches in a hole in the stock and holds the cap down when the temple is in use; but by pushing the bolt back and raising the cap the roller may be slipped off the stud, and cleaned and oiled and put back again with the greatest facility. The trough L under the roller is cast with the stock, and holds the cloth against the roller, and is provided with a horizontal lug, N, to hold the slide P, which is fastened to it by the screw Q, and may be adjusted to the lay by means of the slot in the stand P.

Figs. 3 and 4 represent a modification or different construction, in which R is a portion of the stock having the two sides S S and end T cast with it, and also the journal-boxes V V for the pivots of the roller U to turn in, as shown in Fig. 3, the pivots of the roller being made to turn with it, and the end of the pivot which turns against the end T and resists the draft of the cloth may be made conical or hemispherical to lessen the friction of the roller in turning. Thecap W is hinged in the stock It on the pin X, and is provided with two projections, a and b, which, when the cap is shut down, come on the pivots of the roller and hold them down in their seats or boxes, when the cover is fastened down by the spring-bolt d in the top of the cover, which catches into the end T. The bolt may be slipped back and the cover raised, and the roller taken out and cleaned, and oiled, and put back with the greatest facility. The trough f under the roller U is cast with the stock to hold the cloth against and on the teeth of the roller.

Having described myimprovements inloomtemples, I claim- 1. The toothed temple-roller provided with a fixed stop or pivot of hard metal, conical or hemispherical in shape, to turn against the end piece or lug of the case, which holds the roller on its shaft.

2. In combination with the toothed roller, the conical hard-metal pivot, as described, and constructed with a recess to serve as a bushing for the end of the roller-shaft.

3. The sheet-metal plate a under the stock D fastened on the stud c, to cover the spring under the slot in the stock, and keep out the waste, dust, and dirt.

NATHAN CHAPMAN. Witnesses:

J. DENNIS, J r., T. G. OoNNoLLY.

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