US351934A - Beoad silk - Google Patents

Description

4 Sheets-Sheef 1.

(No Model.)

J. NIGHTINGAL'E, Jr. TAKE-'UP AND LET-OFF MEGHANISM FOR LOOMS FOR WEAVING l BROAD SILK.

l No. 351,934. Ptented Nov, 2, 1886;

- DTVENTOR:

QIDO

OCD

WITNESSBS ATTOR N. PETERS. Fhololjihagnple', Washington, D. (L

(No Model.) v l 4 Sheets-Sheet' 2.

J. NIGHTINGALE, Jr. TAKE-UP AND LET-OFF MEGHANISMYPOR LOOMS FOR WEAVING BROAD SILK.

. "lfatented Nov. 2, 1886.

WITNESSES: INVENTOR:

(No Model.) I 4 Sheets-Sheet 4. J. NIGHTINGALE, Jr. TAKE-UP AND LET-OFF MEGHANIS'M FOR LOOMS FOR WEAVING l BROAD SILK.

PatntedNov. 2.1886.

l WITNESSES:

IN'VENTOR:

omaa

JAMES NIGHTINGALE, JR., on NEW YORK, N. Y.

TAKE-UP AND LET-'OFPMECHA'NISM FOR LOOMSTOR WEAVING BROAD SILK.

Application filed March 6, 1886,

To all 'whom it may concern:

Be it known that I, JAMES NIGHTINGALE, J r.,of the city, County, and State of N ewYo rk, have nvented a new and Improved Take-Up and Let-Off Mechanism for Loonis for Weariug Broad Silk, `ofwhichthe following is afull, i clear, and exact description.

The invention consists in the construction,

arrangement, and combination-of partsand details, as will be fully deserbed and set forth herinafter, and olained.

Reference is to be had to the accompanying drawings, forming a part of thisspecification, in which similar letters of reference indicate correspondingopartsin all the figures.

' Figure 1 is a'side view of a loon provided -with myfimprovements parts being broken out and others insection. Figt 21is a front view of the same. Fig. 3 isa rear view ofthe same. Fig. 4 is an enlarged detail sectional view showingthe cloth-bean, the lay, andthe mechanism for 'revolvingfthecloth-beam.

A is the frame; B, the heddles, which are The warps Dare wound on andare passed from the said warp-beam downwardand under a rol1er,E, `pivoted in a frame,-

E', arranged to slide between the :rear uprights, A', 'of the frame. Fronthesnidroller LE' the warpspass npward andoverftherollers F andF', on the topof the frame, then down- `ward under the'roller "F and through -the reed 0 and the finished fabric G passes over the breast-beamG', under the front bar, G in the breast-bean G', over a statonary rod, G under a vertically-adjustable rod, G over the stationary rod G and then downward behind the cloth-beam H,under aroller, 'H', at the bottom of the frame, then up and around the cloth-beam. The rod G* is adjusted by means of the screws G (see Fi g. 6,) or in any suitable manner. a

The frame E' has considerable weight, and, if desired, it may be weighted still more by a weight suspended from the same. The roller H' is journaled in the ends of arms I, pivoted to the sides of the frame in such a manner Serial No. 194251. :No model.)

ou the. said leves or 'arns I a box, I' isheld, which serves to receive a weight; orthe levers I can be weighted at or near their free ends in any other suitable manner. A lever, J, pivoted-at its top to the side of the frame, has its lower end connected with the lay C, thus causing the said lever J to swing with the lay.

To the'lerer J a pawl, J', is -pivoted, which is provided at its outer end with a dog, J

adapted-to engage with the teeth of a gear or change-Wheel, J nounted on the same shaft with a pinion, J*, whichin turn engageswith 'a cog-wheel, K, mounted on thesame shaft extent' that its dog J' can no longer engage -with'the teeth of the ratchet-wheel J'* and revolve tlesame, and 'conscquently cannot fre volve the cloth-bran.

Check-dogs or pawls L', resting on the edge of the wheels J are pivoted to an aru lfi,

projecting from the front of the loom. Two

angle or elbow levcrs, M and M', are pivoted;

tothe frame of the loon at the front and bot- -tom in such a manner that their inner-ends overla'p and their outer upwardly-projecting -euds, M ,rest against the roller H', as shown in Pig. 2. By pressing down the inner end of theupper lover, M', the short arns M of both the said levers M and-M' are pressed npward, and the roller H' is thus raised.

The arrangement of the picker-staffs, the

construction of the lay, Shuttle-race, reed, heddles, &c., is the same as in other looms. The warpbeam D' is provided with the usual tension-rope, N, and weight N', for the pur- `curved rod L will raise the pawl -J to' such an ing in the usual manner.

wound on the cloth-beam, the tension on the completed fabric passing over the roller H' and in the warps becomes greater, and is sufficient to raise the weighted levers I and the roller H' slightly. By this movement of the levers I the bar L is raised, and in turn raises the pawl J', carrying the dog J so that the said dog cannot engage with the teeth of the ratchet-wheel J and the clothbeam H is no longer revolved. The fabric formed is taken up by the action of the weighted levers I on the said fabric, as the roller H', journaled in the said weighted levers I, draws the fabric downward. The levers I descend suficiently to permit the dog J' to drop on the toothed edge of the wheel J again, whereby the said wheel J is again revolved and the cloth wound on the cloth-bean. The tension on the fahric and warps is thus ohtaincd from the weighted levcrs I and not directly from the clothhean, as in other looms. If at this tine the operaf tor wishes to let the fabric back to the reed, he presscs down the levers M M which raise the roller H' and permit the frame E', aeting on the warps passed over the roller E, pivoted to the said frame, to pnll the warps downward, whcrchy the fabric G is moved in the direction of the arrow (t', Fig. 4. Should the filling break or run out wlile theloom is running, then there is no blank space formed in the fahric G, and as soon as the weaver discovers that the filling has broken or run out he movcs the fabric in the direetion of the arrow a', as above described, so as to bring the last wefttlnead up to the reed C on the lay and there remedies the running out or breaking of the fill- If the weaver has occasion to undo a few picks for any defeet that might happen to the fabric in the breaking ofa thread between the reed and the breast-beam, he moves the fabric in the direetion before described toward the rced in the direetion of the arrow a', and corrects this defeet in the nsual manner. In all cases this adjustment of the fabrie to the reed is entirelyfindependent of the cloth-bcam, the only function ol' which is to carry the completed fabric, but not to give the same any tension. is empty at the beginning of the weaving, and as the gear or change wheel J turns a little faster, according to the desired number of picks per inch ot' the fabric, there is atendeney to nove the weighted lever I upward, and such raising will take place at quite long intervals at first, until the clothbeam becomes 'The cloth-beam' more and more filled with the fabrio woven, so that the intervals between the raising and lowering` of the weighted lever I become more frequent, according to the quantity of the fahric on the cloth-beam; but as the diameter of the windingsurface of the clothbean increases, and the quantity of the fabric wound on the cloth-beam for each revolution increases with it, it is evident that the weighted levers I will be raised much sooner than when there is asmall quantity of fabric on the clothbeam.

Having thus fully described ny invention, I claim as new and dcsire to secure by Letters Patent- 1. The combination, with aloom'frame, the warp-beam, the heddles, and the lay, of the cloth-beam, nechanism for revolving the said cloth beam fron the lay, lovers l, pivoted to thel.oom-frame, a roller, H', journaled in the ends of the levers I below the cloth-beam, and a lever, M', pivoted on the l00mframe and having one end, M resting against the roller H', substantially as' herein shown and described.

2. The combination, with a loom frame, the warp-beam, the heddles, and the lay, of the clothbcam, mechanism for revolving the said cloth-beam from the lay, levers I, pivotcd to the loom-frame, a roller, H',journalcd in the ends of the levers I below the cloth-beain, and angle-levers M M', pivoted to'the loom-frame, their outer angular ends, ltP, restin g against the roller H' and their inner ends Overlapping, snbstantially as herein shown and described.

3. The combination, with a loom frame, heddles, a lay, a cloth-beam, and a warpbean, of a vertically-sliding frame, a rollcr journaled in the same, over which roller the warps are passed, levers pivoted to the loom-frame, a rollerjonrnaled in the ends of said lovers below the cloth-beain, a pawl operated from the lay, a ratchet-wheel operated fron the said pawl, gearing for operating the cloth-beam from the ratchet-wheel, an arn projccting upward from one of the levers in which the roller below the cloth-beam isjournaled, andlevers for raising the levers in which the roller below the cloth-bcatn isjournaled, snbstantially as herein shown and described.

JAMES NIGHTING ALE, JR.

Wtnesses:

THEo. G. Hos'rER, C. SEDGwIcK.

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