US1636343A - Loom - Google Patents

Description

July 19, 1927.

Filed March 15, 1924 4 Sheets-Sheet l WITNESS July 19, 1927.

W. S. WELLS LOOM 4 sheets-shea 2 Filed March 15, 1924 July 19, 1927. '1,636,343

W. S. WELLS LOOM Filed Maroh 15, 1924 4 sheets-sheet 5 wauw swens,

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LOOM

4 Sheets-Sheet 4 Filed March 15. 1924 u v9/Enron, WHmm SNN/ens,

A Y Afro/mir- Patented July 19, 1927. l

UNITED STATES y 1,636,343 PATENT Omer.

WILLIAM s. wELLs, or BE'rHLEHEi/r, rENNsIYLvANr'AJs'srGNOR yro BENJAMIN EAST- woon COMPANY, OE PArEEsON, NEw. JERSEY, A CORPORATION or NEW JERSEY.

Loom.

Application med March 15, 1924. serial No. 699,391.

This invention relates to looms for weaving in which the reed is arranged to yield rearwardly.

One object of the invention is to provide for the yielding of the reed shoulda shuttle or other obstruction intervene between it 1nd the fell of the fabric during the forward stroke Of the batten and yet to provide for establishing resistance to yielding of the reed after thebatten during said stroke has passed a given position, to thexend that when the Obstruction intervenes in the event that only a comparatively few ofthe `warp threads are up or down and for this or any other reason the warp is frail there may occur a yielding of the reed and yet under normal conditions the reed will ineet the vfell of the fabric with-the proper degree of impact. Y, y y

nother object is to provide novel and efficient means for controlling` the yielding of the reed, Aone of such means being in the ezainple hereinafter set forth afforded by that part ofthe 'mechanism which controls the reed at the moment of the beating up and the other being afforded by that part f said mechanism which" controls the reed when `a` shuttle or othei` obstruction intervenes between it andthe fell of the fabric. In the drawings,v l

Fig. 1` is a front elevation Of a hatten, a rearwardly yielding reed thereon, and the mechanism of this invention which controls the reed, certain partsv appearing in section and others broken away;

Figs'. 2 and 3`are vertical frontto-re'ar Sections on a larger scale, taken on the line 2 2, Fig. 1, the batte'n being'res'pectively in the one oase fully forward and in the othervba'ck; y e

"Fig 4 is'v a similar section in' the same plane, and showing the reedy to have yielded rearwardly due to pressiire' of an obstruction between it and the fell ofthe fabric;

Fig. 5 isa plan, partly in' section,iof substantially what is shown in' Fig. 1;

Fig. 6 is a plan O f certain parts with the batteriV removed, being on a larger scale than Fig; and y e Figs. 7 and 8 show certain details'. n

The frame is indicated at a. b designates the usual lay swords, whichin thisv case are bent backward, as at b', near theirY upper endsg; and C is the hatten, d being the shut- The reed is here taken as including the reedproper tand a frame in which ity is mounted, constructed thus: with upper and lower railsj and Vc grooved to receive the reed proper and with two uprights [leach bent backwardlatl as shown) which conneet the ends of therails and have forward ears Z2 (Fig.` 5).,receiving pivots or studs/m on angle brackets m ysecured to the lay swords. `As in `my application No. 660,293,

Patent No. 1,530,530, therreed is provided with,4 counterweights n upstanding therefrom,l their depending4 extensions n being set in recesses m2 inthe ends of the upper rail j-and .clampedbetween the latter and the .uprights Z. i

`@ne upright'l` hasa depending lug la whose nose is normally rearwardly abutted 'by a cam-rise o formed on the upstanding arm of a lever o which may be fulcrurned on a stud Ao2 on. the `adjoining `lay-sword, the other and forward'arm of the lever being. pulledpdownwardly vby a spring p attached to thelay-sword. yThe spring'pexerts comparatively little 4.force on `the lever `so'that while thefriction .that exists between Rando is perfectly adequateto prevent .backward swingingofthe' reed as the result of inertia whenthe batten goes forward, if an obstacle, as theV shuttle d', inter- `venes betweenthe :reed'and ythe fell: of the cloth during the:forward` stroke, the reed will cam backl the lever o, yielding rearwardly from, the position in Figures 2 or 3 to the positionin Figure 4. When the vreed is in the firstmamed of .these positions it abuts forwardly against a stop afforded by the loackface of the batten, against which a pair of catch-.plates g depending from the 'bacle of the reed may abut.

After the hatten-including structure during each. stroke has passed afgiven position, to wit, when y-it has approached..` Isufficiently near to the fell of the cloth so that the shuttle or any other obstacle is not likely to intervene, means now to be described 'establishes resistance to backward yielding of the reed and maintains the same until such stroke is completed. In the present adaptation said means takes the form of a couplinio,- mechanism which couples the reed structure to the batteri-including structure, but with a. certain amount of yield. Thus:

Bolted to the under side of the batten and therefore forming a part of the structure including the same and the lay swords is a pair ol brackets r which have forward seats i" and from which upstand the bolts s. On two horizontally alined studs t in these brackets are fulcrun'ied a pair of bell-crank levers u which have their forwardly projecting arms formed as pads u to rest on the seats r under the pressure of strong spiral springs o coiled about the bolts s and interposed between said pads and adjustable nuts s on the bolts; the upwardly projecting arms u2 of the levers have arranged to rock therein a shaft w which has clamped thereto, by screws m, the pair of hooks or latches y adapted to be raised and catch the catch-plates g, thus to couple the reed and batten-including structures together. The coupler proper formed by shaft fw and the latches is normally held depressed by a spiral spring w (Fig. l) secured at one end to a collar on the shaft and having a roller lw2 at the other end to bear against the bottom face of the batten. The coupling is effected during the forward stroke of the batten, as stated, from an actuator in the form of an abutment, here a roller, z secured to one side of the loom frame, through means which has provision for yielding elastically should the latches perchance be raised wit-hout the reed structure being fully forward where the hooks of the latches properly clear Vor take behind the catch-plates. Thus another rock-Shaft 2 is journaled in the right-hand bracket r and in a suitable bearing on the adjoining lay-sword and has at its right'end an arm 3 (Fig. l) fixed thereon in the path of and adapted to enthe abutment e and at its left-hand end the following parts, to wit: a fixed head @t (Fig. 8) having a lateral hook-extension 4, a lever 5 fulcrumed on the shaft next to the head and equipped with a roller 5 to bear against the under side of the righthand latch g/ of the coupler proper, and a spring 6 coiled about the shaft and having one end hooked over the hook-extension and its other end hooked under the lever 5 and thereby normally holding the latter pressing against the hook-extension. When the hatten moves forward contact of arm 8 of rock-shaft 2 with the abutment .e rocks the latter clockwise (Fig. 2), thus elevating the lever 5 which in turn elevates the coupler proper, the necessary yield of the lever 5 at this time being permitted by spring 6; when the hatten moves back the rocking structure including shaft 2 and its :uljuncls turns anti-clockwise to a limit afforded by contact of an arm 2 thereon with the laysword (Figs. l and (i), the coupler proper falling clear of the reed.

Under normal conditions the coupling of the reed to the batteri-including structiu'e through the coupling means described occurs on every forward stroke of said structure, the necessary yield of the reed on impact with the fell of the fabric being afforded by the springs e. But if an obstruction intervenes between' the reed and the fell the reed will yield rearwardly, as already described, overcoming the resistance ollered by the lever 0.

As in my said application, I may provide a dagger 7 which is pivoted beneath the batten in a bracket depending therefrom and shown dotted at 8 in Fig. 2 and which, when it is cleared by a set-screw 9 depending from the reed and normally overlying the rear end of the dagger, falls so as to engage the arm g and thus cause stopping of the loom by rocking the knock-off shaft, this occurring when, in a forward movement of the batten, the presence of an obstacle in the shed results in rearward yielding `of the reed.

Having thus fully describedmy invention, what I claim as new and desire to secure by LettersPatent is 1. In combination, a batten-includin structure movable back and forth, a ree rearwardly movable therein, and means to establish yielding resistance to the backward movement of the reed after said structure during each forward stroke thereof has passed a givenposition and thereupon maintain said resistance until such stroke is completed.

2. In combination, a hatten-including structure movable back and forth, a reed rearwardly movable therein, and means to establish spring resistance to the backward movement of the reed after said structure during each forward stroke thereof has passed a given position and thereupon maintain said resistance until such stroke is'completed.

In combination, a hatten-including structure movable back and forth, a reed structure rearwardly movable therein, and means to yieldingly couple the two structures together and thereby oppose backward movement of the reed structure after the first structure during each forward stroke thereof has passed a given position.

4. In combination, with a support, a batten-including structure movable back and Y forth therein, a reed structure rearwardly movable in the first structure, and movable means arranged on one of the structures and including a yielding coupling adapted on` movement of said means to couple the two Structures together and thereby oppose backward movement of the reed structure, the support having a part thereof adaptedto be wiped by said means during a forward stroke of the irst structure and thereby cause such movement of said means.

5. In combination, with a support, a batten-ineluding structure movable back and 'forth therein, a reed structure rearwardly yieldable in the first structure. and yielding mechanism, movable back and forth with said structures, for coupling them together and thereby opposing said yielding4 of the reed structure after the {irst structure during each forward stroke thereof has passed a given position including a coupling member movable into and out of the coupling position and also including a device movable t0 move the coupling, the support having aV part thereof adapted to be wiped by said device during such stroke.

` 6. In combination, a hatten-including structure, a reed rearwardlyyieldable therein, a lever ulcrumed in said structure, a coupler to connect the lever with said reed and movable into and out of coupling engagement with one of them, a spring opposing movement of the lever on its fulcrum transmited thereto through the coupler from the reed on pressure being exerted Vrearwardly on the reed, and means to control the movement of the coupler.

7. In combination, a hatten-including structure, a reed yieldable rearwardly therein, and a lever having a cam-rise engaged by, and frictionally opposing the yielding of, the reed' and past the summit of which the reed moves in yielding, said lever being spring-held to oppose yielding of said reed.

In testimony whereof I aiiiX my signature.

WILLIAM S. WELLS.

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