US813765A - Warp stop-motion for looms. - Google Patents

Description

No. 813,765. EATENTED PEB. 27, 1906.

H. G. BAKER.

WARP STOP MOTION FOR LOOMS. AIPLIOATION FILED seza, 1905.

' rientrino sterne HARRY G. BAKER;l OF l/VORCESTER, MASSAUHUSE'S, ASSiGiTUR TU CROMPTON t KNOWLES LM WORKS, A CORPORATION 0F YMAS- SACHUSETTS.

No. eist/e5.

Specification of Letters Patent.

Patented Feb. 27, i906;

Application iiled September 28,1905. Serial No. 280,426.

To all whom it may concern:

Be it known that I, HARRY G. BAKER, s citizen of the United States, residing et Worcester, in the county of Worcesterl and State oi Messachusetts, have invented certain new and useful Improvements in Werp Stop-Motions for Looms, of which the following isn specil My invention relates to werp stop-motions for looms end to that class oi werp stop-nictionsin which the breaking of a Warp-thread allows the drop device supported thereon to be lowered 'and to close the electric circuit in cese of en electric werp stop-motion, orto bev engaged by @moving part in case of e mechanical Warp stop-motion, to cause mechanism to be ,operated to stop the loom in the usual and well-known wey. ln the ordine@7 construction 0i werp stop-motions of the ciess referred' to the stands or frames supporting the werp lesse-rods and the terminels or the'guide-rods for the drop devices are rigidlyv secured to the loom frames or sides and held in e iixed position. By this construction the warp-threads are prevented from having e free vmotion up and down, ectueted bv the hernesses and b v the operation of the w ip-roll.

The object of my invention is to improve u on the construction of Werp stop-motions o the class referred to, and more partie-ulsriv to provide e werp stop-motion supported by the werp-threads and verticali)Y movable with the werp-threads in their upand-down motion end prenerzibl')r edjustebly connected with the loom-freine or some stetionery part of the loom to prevent movement of the wer stop-motion in the direction of theiengt 1 of the werp-threiids.

My invention consists in certeinnovel features of construction of myimprovements, ns will be hereinafter fully described.

I have shown in the drawings my improvements in connection with en electric werp stop-motion oi" ordinary ind well-known construction end operation.

Referring to the drawings, Figure 1 is :i rear perspective view of an electric werp stop-motion embodying my improvements and some of the parts connected therewith.

,Fig 2 is ny central vertical section through the parts shown in Fig. l and looking in the i direction of arrow a, seme figure. @ne oi the drop devices is shown in its lowered position.

In the ecconipenving drawings, l is e detached portion of :i loom side or trame on one end oi the loom. i

2 is the Whip-roll, journele'd in the loom sides or frames in the usuel wey.

The werp-threads 3 pass over the whip-roll 2 from the werp-boem (not shown) et the lower part of the loom and are divided in the usuel Way into two planes which cross noch other intermediate the two lesse-rods -i und are held epertby seid lease-rods, which may be supported and carried by the werpthreeds and have an up-snd-down motion in e vertical plone vwith the werp-threads es they are actuated by the harnesses (not shown) in the usuel wey.

To theends ci the lense-rods -fi ere rigidly secured zi stuud or i'rume 5, forming the end stands or frames of the warp stop-motion. Supported onI and secured tothe end stands or frames 5 are the two guide-rods 6 for the part of the drop devices. The lower port or .the drop devices have in this instance openend slots, through which the werp-threads 3 pass' to support the drop devices in their raised position in the ordinary wey. llzich guide-rod 6 acts in thi: instzinec ns one ot' the terminals of un electr circuit. liltending between the drop devices 7 und supported upon und secured et nach end io the end stands or frames is :i bnr 8, forming the opposite terminal oi' the electric circuit, A wire 9 of one pole' (positive) is connected to the terminal 8, und e wire i() of the opposite pole (nega-tivo) is connected to euch oi' the terminals 6, and seid wires lend to mechaniinism (not shown) for stopping the loom in the usuel und Well-known wey.

it will be understood that n. drop device is supported on each worp-threuti find the? upon the breaking oi any Wurp-tln'ind the drop device supported thereon is lowered until the side projection engages the central terminal 8, indicated in Fig. 2, to close the circuit :ind cause niechzinisni to he operated to stop the loom in the usual und weli-knmvn .wav

drop devices 7,which in this instance extend through elongated openings 7 in the upper' ln order vto prevent the lease-rods Lland the other parts of the warp stop-motion from having a movement inthe direction of the length of the warp-threads as the warpn threads are drawn through the loom and also to provide means for adjusting the position ol the warp stop -motion relative to the whip-roll, .if desired, l provide means for connecting the same withsomc stationary part of the loom; but these means do not prevent the free vertical or up-anddown movement of the several parts olz the warp stop-motion with the warp-threads. in this instance I provide a boss or hub 11 on cach end frame 5, which has a hub or s leeve 1 1/ therein, of non-con ducting material, into which extends and is' secured b a set-screw 12 a wire 13. The' wire 13 ism this'instance bent atits other end, 'at an angle to extend outwardly and pass. loosely through a non-conducting hub orl sleeve 14, iiast on the head or hub 15. on theI upper end of a vertically-moving stud 15, whch is adjustably secured by a set-screw 1 in a hub or boss 17 on a stand 17, secured to the loom side or i'rame 1. (See F ig. 2.) l i In order to lessen the weight of the warpstop-motion on the warp-threadsand to as-` sist in supporting the warp stop-motion, I may rovide a spiral coiled spring 18 or its equiva' ent at each side or end of the warp sto -motion which spring in this instance enciprcies the outwardly-pi'ojectiiig ends of the bent wires 13 and is secured at one end to the head 151 on the stud 15 and at its other end to a collar 19, which is rotatably adjustable on the end of the wire 13 to vary the tension of the; spring 18 and secured thereon. by a setscrew 20. i

in order to hold the warp stop-motion in its raised position in case the operator wishes to'lind a broken thread or for any other rea-` semi preferably rovide a stand or arm 21 at each side or en( or" the warp stop-motion, which is preferably ivotally supported in this instance on a stu 22 on. an extension 17 on the boss 17 on the stand 1 7. Eaclrarm 21 has a forked u )per end, which is adapted to be moved un er the wires 13 lby raising said wires and the warp stop-motion and receivc said wires 13 in the forked end and -support the same and withthemthe warp stopinotion, shown in the drawings.

it will be seen that in my improvements the several parts of the warp stopmotion, including the lease-rods and the terminals or guide-rods 'lier the drop-wires, will have a vl'ree up -anddown motion with the war threads, as the same are supported direct y on the warp-threads and at the same time are connected Awith the statifmary arts of the loom to prevent n iovement of t ie warp stop-motion in thc'directiim of' the length ot' the warp-threa lsln caso the spring 18 or its equivalent is stop-motion on the warp-threads the whole weight of, 'the warpfstop-motion will be supported by the warp-threads, thewire 13 turning loosely in the hub lain the head 15 on the stud 15. in case the spring 18 or its equivalent is used to lessen the weight or the warp stop-motion on the warp-threads said spring acts topa-rtially support the warp stopmotion or to take a portion of the strain of the warp stop-motion oli the warp-threads,'

as will be well understood.

The advzmtages of myimprovcments will be readily appreciated by those skilled in the art,fand they may be adapted to be used in connection'with mechanical warp stop-mo tions and different classes of electric warp sto -motions t will be understood that the details oi construction of my improvements may be varied, .if desired.

Instead of a spring 18 a weight or an equivalent device may be used.

' Having thus described my invention, what 'I claim as new, and desire to secure by Letters Patent, is-

1. Aloom warp sto -motion, supported by the warp-threads, an movable up and down therewith in a vertical plane'. j

2. A. loom warp stop-mo tion, supported by the warp-threads, and movable up and down therewith in a vertical plane, and adj ustably connected With a stationary part of the loom.

3. Ateloom warp sto -motion, supported by the warp-threads, an movable up and down in a vertical plane, and adjustably connected with a stationary part of the loom, to be moved in the direction of the length of the warp-threads.

4. A loom warp stop-motion, supported by the warp-threads, and. movable up and downtherewith in a vertical plane, and means for lessening the weight of the Warp stop-motion on the warp-threadsf 5. A loom warp Vstop-rriotion, supported by the warp-threads, and movable up and down therewith in a vertical plane, and means for adjusting the weight of the warp stop-motion on thel warpthreads.

6. Awarp stop-motion folooms, compris# ing lease-rods and guiderods for the dro devices, sup orted by thewarpthreads to iiave a vertica .up-and down movement therewith, and means for connecting the leaserods and guide-rods. y

'7. A loom warp stopmiotion, supported by the warp-threads, and movable u and down therewith in a vertical plane, ai; connected with a stationary part of the loom.

8. The combi nationw'ith warp-threads divided into two planes which cross each other intermediate two lease-rode, of a warp stop motion supported. by saidwarp-threads and having' as a part th creol said lease-rods- 9. The combination with warp-threads difnot used to lessen the Weight of the warp vided into two planes which cross each other Y rmotion supported by seid Warp-threads, and

with, and means for lessening the Weight of the War stop-motion on the War -threads 11. he combination with a oom Warp sto -motion comprising lease-rods and guideio s for the drop devices, supported by the Warpthreads to have e vertical lip-and-down movement therewith, of means for holding the WarpAstop-motion in its raised position.

HARRY G. BAKER.

intermediate two lease-rods, of a 'Warp stopcomprising said lease-rodsI two end frames secured to said lease-rods, guide-rods or terminels for drop devices secured to said end frames, and said drop devices, and a central, baifor terminal extending between the drop i devices and secured to said end iTemes.

i0. A loom Warp stop-motion, comprising 1ease-rods and guide-rods for thedrop de- Witnesses: vices, supported by the Werp-threads to have J. C. DEWEY, a vertical up-anddown movement theie- M HAAS.

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