US398365A - To the - Google Patents

Description

2 SheetsSheet 1.

(No Model.)

Patented Feb. 19, 1889.

7 Ir II II III I lll llllll II II] Witness E5: W n/u MAD/LU.

2 Sheets--Sheet 2.

(N0 Model.)

H. WYMAN.

TAKE-UP MECHANISM FOR NARROW WARE LOOMS. No. 398,365.

Patented Feb. 19, 1889.

N, PETERS, Plmo-Lillw u her, wasm'n mn, D. C.

UNITED. STATES PATENT ()Frrcn.

HORACE IVYMAN, OF \VORCESTER, MASSACHUSETTS, ASSIGNOR TO THE CROMPTON LOOM VVOBKS, OF SAME PLACE.

TAKE-UP MECHANISM FOR NARROW-WARE LOOMS.

SPECIFICATION forming part of Letters Patent No. 398,365, dated February 19, 1889.

Application filed June 21, 1888. Serial No. 277,834. (No model.) i I i To all whom it may concern.-

Be it known that I, HORACE \VYMAN, of IVoreester, county of \Vorcester, State of Massachusetts, have invented an Improvement in Take-Up Mechanism for N arrow- YVare Looms, of which the following description, in connection with the accompanying drawings, is a specification, like letters on the drawings representing like parts.

This invention has for its object to improve the take-up employed in connection with narrow-ware or tape loo1ns,wherein man y webs are wound or taken up simultaneously or by one shaft. In this class of loom a series of take-up or sand rolls are arranged on a common take-u p shaft, and when the shuttle-thread breaks or other imperfections occur during weaving it is necessary to be able to independentlyi' move the take-up or sand roll handling gears, as herein shown, having one or more teeth than the other gear, both the said gears being, however, engaged by one pinion carried by a hub or hand-wheel loose on the takeup shaft, and, as shown, having its hearings on parts of the said gears, such construction enabling the take-up shaft, when rotated forward in usual manner to rotate all the take- 1 up or sand rolls positively in unison with it,

yet, when desired, by turning any individual hub or hand-wheel, thetake-up or sand roll co-operating with it may be moved slowly, either backward or forward, on the take-up shaft to take up slack in the web or give back slack, as may be desired.

The gearing herein shown for moving the take-up or sand rolls is one form of what is called differential gearing, and I desire it.

I to be understood that I do not in tend to limit my invention to the exact form of differential gearing herein shown, as I may use instead any other well-known and equivalent gearing whereby any one of a series of takeup or sand rolls loosely connected with the take-up shaft may be moved independently byhand in either direction by or through a hub or hand-wheel, which is also loose on the take-up shaft and free to be rotated by hand at all times.

Myhwention consists, essentially, in a takeup shaft, a series of gears fast thereon, a series of gears loosely mounted on the said shaft, and take-up or sand rolls attached to the said loose gears, combined with a series of hubs or hand-wheels loosely surrounding the said shaft, a pinion carried by each hub or hand wheel and meshing with both the said gears,

the teeth of the said gearing differing in numher to constitute a differential gear, substan tially as will be described, whereby, through the said looseh ub or hand-wheel, the said take up or sand rolls may be freely rotated independently one of the other on the take-up shaft in either direction, substantially as will be described; also a tak e-up shaft, its attached series of take-up or sand rolls, and pressure rolls, combined with a series of receivingrolls and the levers upon which they are mounted, the said receiving-rolls being rotated by the sand or take-up roll, substantially as will be described.

Figure 1 is a front elevation and partial section showing a sufficient portion of a loom embodying my improvements to enable my invention to be understood. Fig. 2 is a sectional detail taken in the line or, Fig. 1, looking to the left, the figure showing the toothed gear C, which is fixed to the end of the take-up shaft 0, and the pinion C for moving it. Fig. 3 is a detail showing the stand and weighted arm, upon which is'niounted the receivingroll. Fig. 4 is a partial left-hand end elevation of the loom shown in Fig. 1; and Fig. 3 is a perspective view of one of the levers f for supporting the receiving-roll.

Referring to the drawings, A represents the frame-work of the loom; A, the usual under or picking shaft; A a toothed gear secured to it and in mesh with the toothed gear A fast on the crank-shaft A joined by usual connecting-rods, A with the lay A. These parts are and may be all as usual.

As herein shown, the lay is provided with guideways of usual construction, in which I have shown arranged a series of shuttles, a, of usual coiistruetion'such as are commonly empldied in looms for weaving narrow fabrics or tapesthe said shuttles deriving their motion in usual manner tlnrough suitable rackbars (not shown) put in operation by straps of (L2.

The loom at a point below the usual breast,

beam, B, has aftake-up shaft, (3, which, near the left-hand end of the loom, as herein shown, has fast upon it a toothed gear, 0, which derives its motion of rotation from a pinion, C fast upon a short shaft extended through the loom side and provided at its other end with a ratchet-wheel, C of usual construction, the said ratchet-wheel deriving its .step-by-step movement from a pawl, C", mounted upon a pawl-carrier, 0'', having its fulcrum at O, the lower end of the said pawl-carrierbeingj ointed by a link, as G to a pin, 0 fast upon one of the swords of the lathe. The take-up shaft 0 is extended across the loom, and has fast upon it a series of gears, b, one for each web or tape to be woven, and on the said shaft, immediately alongside of each gear I), is placed a gear, c, the latter having preferably a hub,

c,to w rich is secured in any suitable man.-

In practice the take-up shaft 0, the loom being in regular operation, is rotated by the pawl C and ratchet-wheel and the take-up or sand rolls are moved forward in unis(n with the take-up shaft the teeth of the gears 1) .fast on the shaft at such. time so ongaging the teeth of the pinions (Z as to cause the hubs or wheels (Z to travel with the gears l1 and rotate the gears c, and with them the take-u p or sand rolls 0 but when it is desired to move one of the webs independently of the others to correct some fault in the weaving, or for other cause, it is only necessary to rotate the hub or hand-wheel d with its pinion around the two gears b c, which will rotate the loose gear 0 and take-up roll 0 next the said hand-wheel. about the axis of the shaft independently of the others.

It frequently happens in weaving that the weft fails, and at such time it becomes necessary to suspend the operation of the loom and readjust the take-up or sand roll controlling the web in which the fault occurred. By the mechanism herein described this can be done rection, as may be desired, about the shaft C, the hand-wheel through the pinion (1 car'- ried by and in engagement with the then fixed gear'b, acting upon the teeth of the loose gear 0, carrying the take-up or sand roll, and

moving it in one or the other direction, ac-

eordin g as maybe desired, to let back or take up the web properly preparatory to again resuming weaving, the filling having been prop-' erly supplied.

each of the said levers at its end next the takeup' or sand roll having open bearings, as 2, to receive within them and support and guide the journals Sofreceiving-roll, f3, upon which is wound thewebor tape as it is woven, the opposite end of the said lever having supported upon it a suitable weight, as f. (See Fig. 3.) i

In practice the web or tape passes from the breast-beam, as indicated by dotted lines, down in front of the take-up or sand roll, thence under and between it and the receiving-roll f and between it and the presser-roll e thence over the top of the presser-roll, down around its rear side, and under the receiving-roll, the end of the web being connected to the said recei ving-roll, preferably, by

a suitable pin or projection. In this manner it will. be noticed that the take-up or sand roll for a considerable portion of its surface is in direct contact with the web, and that the sand roll acts directly to rotate the receivingroll.

The rceei ving-roll, when filled, may be readil y removed from the loom by depressing the weighted lever, thus leaving the receivingroll free to be lifted from thcopen bearings :2.

I claim-- I. In a loom, the take-up shaft, a series of gears fast thereon, a series of gears loosely On the under side of the breast-beam B, I

mounted on the said shaft, and take-up or sand rolls attached to the said loose gears, combined with a series of hubs or hand-wheels loosely surrounding the said shaft, a pinion carried by each hub or hand-wheel and meshing with both the said gears, the teeth of the said gearing differing in number to constitute a differential gear, substantially as described, whereby or through the said loose hub or hand-wheel the said take-up or sand rolls may be freely rotated independently one of the other on the take-up shaft in either direction, substantially as described.

2. The take-up shaft 0 and a take-up roll loose thereon, a gear carried by the said takeup roll, a gear fast to the said take-up shaft 4 next the end of the gear carried by the said roll, and having a different number of teeth, and means to engage and rotate the said shaft, combined with a hand-wheel having a pinion, (P, to engage the teeth of the said gears carried, respectively, by the said take-up roll and by the said shaft, as described, whereby by the rotation of the hand-wheel and its pinion about the said gears the take-up roll may be rotated independently of the said shaft 0 in IO either direction, substantially as described.

In testimony whereof I'haye signed my name to this specification in the presence of two subscribing witnesses.

HORACE \VYMAN. Vitnesses:

J'. B. SYME, JUSTIN A. AKE.

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