US321631A - Loom for weaving looped or terry fabrics - Google Patents

Description

(No Model.)

J. NUGENT. LOOM FOR WEAVING LOOPED 0R TERRY FABRICS. o. 321,631.

Patented July 7, 1885.

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UNlTED STATES PATENT @rrrcn.

JAMES NUGENT, OF PHILADELPHIA, PENNSYLVIXNIA.

LOOM FOR WEAVING LOOPED OR TERRY FABRECS.

SPECIFICATION forming part of Letters Patent No. 321,631, dated. July '7, 1885.

(No model.)

To all whom it may concern:

Be it known that 1, JAMES N ccnrr'r, a citizen of the United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented a new and useful Improvement in Looms for Weaving Looped or Terry Pile Fabrics, of which the following is a specification.

The invention consists in the combination, with thelathe, of blocks secured thereto having inclined rear sides, blocks mounted and adapted to slide upon the inclined rear sides of the blocks first mentioned, and having the lathe-actuating crank-arms connected there with, and means whereby the sliding blocks are automatically drawn down or raised, so as to vary the point of connection between the lathe and crank-arms, and increase and decrease the extent of the vibratory movement of the lathe at desired intervals.

In the accompanying drawings, Figure 1 represents a rear view of the lathe-frame and parts connected therewith. Fig. 2 is a top or plan View showing the lathe, the crank-shaft, the cranlcarms, a portion of the loom-frame, the sliding blocks to which the crank-arms are attached, and the fixed blocks on the back of the lathe, the parts for operating such sliding blocks being mainly omitted. Fig. is a vertical section through the main portions of a loom having my improvements applied thereto. Fig. l is a cross-section of a fixed block and the sliding block mounted thereon, and Fig. 5 is a side view of such parts. Fig. 6 is a detail perspective of a portion of the mechanism for operating the sliding blocks.

Like letters indicate like parts throughout the several views.

A represents the frame of a loom; B, the lathe; O, the crank-shaft, which communicates motion to the shaft T by means of the usual intermediate gzanwheels, 1 and 2.

D is a cam-shaft driven by gears 8 and 4 from the shaft T, and upon which are fixed the cams (not shown) for working the heddles, and also a slotted arm, 1?, carrying a roller, 1;,which strikes upon the rear end of the horizontal lever G at each revolution of the shaft 1), except when such end is held depressed, as hereinafter described, thereby forcing down the rear end of said lever and raising its forward end, said lever being pivoted to the cross-girth G of the loom-frame.

Secured to the lathe 13, preferably bybolts, are two blocks, H", formed with inclined rear sides, having thereon dovetailed projections, as shown, upon each of which projections slides a block, H, formed with a corresponding dovetailed groove, the said block having one of the crank-arms H pivoted to its upper end. The sliding blocks are connected with mechanism, hereinafter described, whereby they are drawn down at each third pick to shift the point of connection between the crankarms and lathe nearer the fulcrum of the latter, and thus increase the extent of the forward movement of the lathe, except when it is desired to weave plain cloth, when the sliding movementmay be interrupted, as herein after described.

To the bottom of each of the sliding blocks H is pivoted a vertical connecting-rod, I,which rod is in turn pivoted to one of two arms, J secured to the shaft K, mounted in bearings J upon the lathe'fra-me B.

Secured to the shaft'K is the slotted curved arm L, which is connected by the connectingrod M to the slotted bent extension G" of the front end, G, of the horizontal lever G. The arms J and L are adjustably secured to the rod K by means of set-screws e 6. By means of these set-screws I am enabled to change the relative positions of said arms on the shaft.

L is the slot in the end of the lever L, such slot being provided to permit of changing the point at which the depending rod M is at tached to said lever. The slot in the curved extension G of the lever G is provided for adjusting the point at which the rod M is connected with the said extension. By means of these slots and the set-screws a nice adjustment of the parts may be effected to vary the extent of movement of the sliding blocks H.

N represents what is termed the terry pawl, the said pawl being pivoted in a bracket, N, fixed to the loom-frame A. This pawl is connected to a rod or wire, '0, which at its upper end is connected to the terrylever S. The arm P on shaft D is slotted to admit of adjustment of the rollcrp thereon, so

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as to vary the extent of the vibratory movement imparted to the lever G. R represents the yarn-beam for the terry-warp, and R the yarn-beam for carrying the body-warp. These yarn-beams are constructed and operated in the usual manner, and I make no claim thereto, and therefore do not deem it expedient to illustrate and specify them more fully.

The operation of the devices is as follows: The rear end of the lever G is depressed at each revolution of the shaft D by means of the roller 1) on the arm P. This depression of the rear end and consequent elevation of the forward end acts through the medium of the rod M arms L and J, shaft K, and rods I to force down the blocks II on the inclined rear sides of the blocks H, and thus lowers'the point at which the crank-arms H are connected to the lathe, whereby the extent of the succeeding forward stroke of the lathe isincreased. When the roller 12, on the arm I? is raised from the lever G, said lever is operated in the reverse direction by means of the spring L, and the sliding blocks are forced back to the normal position shown in Fig. 3. The depression of the sliding blocks is repeated at each third pick of the loom.

In weaving plain cloth the end of the pawl N is dropped under the heel G of the lever G, whereby the forward end of said lever is held up and the rear portion thereof held down and out of the way of the roller 1) on the arm P of the shaft D. The lever while thus locked is inoperative, but when the pawl is disengaged from the heel thereof it again vibrates for the production of terry-cloth. When the lever G is in the position shown in Fig. 3, it lies immediately under and against the shaft D, and it is depressed at each rotation of the shaft by the roller 1) and arm P.

By the two short beats of the lathe the weftthreads introduced among the warps are carried forward not quite to the cloth-making point in the warps, leaving a short space in the warps intervening between the fully beatenup wefts, and the two wefts last introduced. The, third beat of the lathe, which is a full beat, not only carries forward the third weft, but moves the two partially-beaten-up wefts fully forward, sliding them along the tightlystrained body-warps, and pushing the lesstightly-strained terry-warps ahead in the form of short loops, which are caused to rise from the surface of the fabric.

Having thus described my invention, 1 claim as new and desire to secure by Letters Patent 1. A lathe having affixed thereto a block bination with the pawl N, rod 0, and lever S, the several parts being connected and operated substantially in the manner shown and described.

2. A lat-he having affixed thereto a block having an inclined rear side, as described, a block adapted to slide upon said inclined rear side, a crank-shaft, a crank-arm pivot-ed to the sliding block, the rods I M, arms J L, shaft K, lever G, spring L shaft D, and arm P, in combination with the pawl N, rod 0, and lever S, substantially as described, and for the purposes set forth.

In testimony that I claim the foregoing as my invention I have signed my name in the presence of two subscribing witnesses.

J AMES' NUGENT.

Witnesses:

Lnwrs F. BROUS, JAMES H. NUGENT.

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