US288303A - brown - Google Patents

Description

(No Model.) 2 Sheets-Sheet 1.

W. BROWN. LEASE ROD FOR Loomsi No. 288,303. Patented Nov. 13, 1883.

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(No Model.) ZSfleets-Sheet 2.

W. BROWN.-

, LEASE ROD FOR LOOMS. N0. 288,303. Patented Nov. 13.1883.

' ivrrs n STATES PATENT FFICe WILLIAM BROWN, OF WEST POINT, GEORGIA, ASSIGNOR OF ONE HALF TO THOMAS LANG, OF SAME PLACE.

LEASE-ROD FOR LOQMS.

SPECIFICATION forming part of Letters Eatent No. 288,303, dated November 13, 188

Application filed April 10, 1893. (No model) ism for moving the lease-rods simultaneously with the lathe; second, in a combination of' rocking couplers or clamps with the movable lease-rods, the lovers, or supports of the clamps, and means for vibrating said levers,

and, third, in the combination of endwise removable lease-rods, clamps, or couplers, the

lathe, connecting-rods, and levers, as hereinafter described and claimed.

The use of vibrating lease-rods upon looms is very desirable. \Vhere the lease-rods are not constructed to vibrate it is customary to apply them in a stationary manner by securing them with a leather band fastened to the cross-beam or whip-roll at the rear of the j loom; or, in other words, the end couplers or clamps of the lease-rods shown in my draw ings are fastened in place by cord or leather bands, instead of being mounted upon levers.

Lease-rods thus applied offer great resistance to the passage of the warp on account of knots, swells, and the like upon the warp-threads hanging upon the rods.

Vibrating lease rods and bars have been employed prior to my invention, as is instanccd in United States Letters Patent No. 6,813, and in British Patent No. 2,428 for 1869 5 but these contrivanccs difi er essentially in their construction and combination and -oper ation from my improved means for applying movable lease-rods to looms.

In the United States patent above referred to the movement of the rods is simultaneous with the heddl es or harness, for the purpose ofrelieving the friction of the warp-threads upon the harness, while my invention separates the warp-threads. In the English patent, also above referred to, the rods have an up-anddown motion, and this arrangement and motion would not operate successfully in weaving domestics and heavy fabrics.

By making the lease-rods movable horizontally in the manner and by the means I have shown and shall describe hereinafter, the draft of the warpthreads is eased and the passage of knots and swells over the rods is facilitated, and thus the loom can be operated more 'rapidly and without dragging or danger of breaking the warp-threads, and more work, as well as more compact and better weaving, can be 6 done with the loom in a given time than with a loom having vibrating bars or lease-rods, such as are shown in the patents above referred to, or when stationary lease'rods are employed upon thelooms.

In the accompanying drawings I have represented a portion of a loom with my movable lease-rodsapplied to it, Figure 1 showing a partial section and elevation. Fig. 2'is a top 7 view of a portion of a loom provided with my invention. Fig. 3 is a diagram of the main working portions and the warp, the position of said portions being the same as in Fig. 1, but the shed of the warp being in reversed position. Fig. a is a diagram showing the lathe 7 5 and lease-rods in their most advanced position, and the shed closed previous to reversal. Fig. 5 is a vertical section through one of the lease-rod clamps and the upper portion of one i of the supporting and operating levers. Fig. 6 is a detached perspective view of the two clamps or couplers, their supports or levers, and the lease-rods, the clamps or couplers being shown slightly raised above the bases,upon which they rest and rock longitudinally when in proper position.

A represents a loom-frame; B, the lathe; C, the operating crankshaft; D .D, the leaserods; E E, the lease-rod carrying-levers; X, the warp. The parts, excepting the leaseo rods and lease-rod levers, may be of any suitable known construction, and adapted for any style of weaving.

The lathe B is connected with the cranks c by means of ordinary connecting rods, b, and with the lease-rod levers by means of suitable connecting-rods, d; Thelease-rodlevers E are suitably pivoted to the frame at 2. Their top portions are reduced, so as to form a rounded or other suitably-shaped shoulder, asat c, and to these reduced portions thelease-rod clamps F are secured by means of elongated slots f,

-' allowing the'clamps to rock longitudinally in one end and the finished fabric at the other end are secured in position and fed along in; These difficulties are overcome by means of With my invention upon a loom the oper ation is as follows: After the loom is .pro-

vertical planes on their supports, and thus permitting the lease-rods D D to accommodate themselves to theiposition of the warp while the levers E are moving backward and forward. The lease-rods D D are securedftoi the clamps by being properlyfittedinto-them. f The half as of the warps passes over the leaserod D and under the lease-rod D. and the half :0 of the warps passes under'thelease-rod} D and over the lease-rod D, and the warp at the usual way.

vided, in the usual manner, with'the war-p, the

lease-rods, after having been withdrawn from; the cl ainps,are reinserted in the following.

wayz'the'b'ack 'heddle is raised and the back quires. In the operation of the loom thusconstructed the lathe moves forward, as do also the lease-rods, "the motion of the latter being, 5 by-preference, of less lengththan'that oi the lathe, and 'whilefthis movement of the leasel rods is going'o'n they accom'modatethemselves 'to'the position of the warp, while the levers nio've backward and forward.

By means'of the construction andcombination'ofparts, as herein'described and shown, the lease-rods arecaused topass so effectively over all portions of the warp threads'as to smoothen'all rough places-suchas knots and; swells-preparatory to their passage'through the heddles, whereby the warp-threads are prevented fromhanging'to the lease-rodsand to'the heddles, and breaking in consequence, thereof. By means of the back stroke'of 'theleaserods every separate warp-thread is combed backward, and if, in passing'through the heddles or through the reed in the lathe,

or oscillatory one.

anyofthe above-described inequalities of the warp -threads should cause such thread or threads to become stretched, said back stroke of the lease-rods, together with the friction of thewarp-threads and lease-rods, serves to again equalize'or reestablish the proper tension 'of thoseth'reads.

more perfect quality of fabric, but it may'also be rendered more productive by runningit 'faster without endangering'the fabric.

Other modes analogous to the one shown might be adopted for giving 'movementtothe lease-rods, according to the requirements of the different styles of looms to Whic'h 'thejy are applied. -For instance; the "movement might .be straight'reciprocating, instead of a vibratory So, also, more "thanftwo lease-'rods'might be used.

What I" claim as'my invention, and desire to securefby 'Letters Patent, is-

1. The combination of the lease-rods, nieans 5 'for-holdingthe same, and the supporting levers, with the lathe, and means for connecting the levers with the lathe, whereby the leaserods have a'forward and backward motion in thedirection of the warp simultaneously with 9 'the'motion of the lathe, substantially'as and fo'r'the purpose described.

2. The rocking clampsor couplers, in combination with'lease-rods, supporting leversfor WVILLIAM BBGWVN.

Witnesses: WV. H. HARRINGTON,

J. W. GRIGGS.

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