US1579346A - Take-up for looms - Google Patents

Description

April 6 1926. E. F. BALDWIN TAKE-UP FOR Looms original Filed Dec. 12.1921

Patented Apr. 6, 1926..

UNITED STATI-:s

1,579,343 PATENT OFFICE. l

EARL ETALDWIN, or GARDNER, MASSACHUSETTS, ASsIeNoRl To AMERICAN FIBRE CORPORATION, or GARDNER, MASSACHUSETTS, A CORPORATION OE MASSACHU- SVETTS.

Original application led December 12, 1921, Serial No. 521,624. Divided and this application led November 25, 1922. Serial No. 603,338.

- To all whom it may cancer/n.:

Be it known that l, EARL F. BALDWIN, a citizen of the United States, residing at Gardner, in the county of llVorcester and State of Massachusetts, have invented new and useful Improvements in Take-Ups for Looms, of which the following is a specifi cation. Y

This invention relates to looms particu- 50 larly designed' for weaving fiber Such as 'strands formed of paper strips, this application being a division of my application 'iled l)ecemher12, 1921, Serial No. 521,624 for looms and relating more particularly to take-up mechanism so designed as to cause no bruising or other injury to the strands in the` woven fabric and to be adjustable to vary the rate of feed of the. fabric While the machine is ruiming.

Further objects and advantageous details and combinations of Vparts will appear from a more complete description of one embodiment of the invention disclosed in the accompanying drawings in which- Figure 1 is a fragmentary end elevation of the loom showing the take-up mechanism. Figure 2 is a fragmentary front elevation of the machine. I Figures 3 and 4: are fragmentary sections of different portions of the machine on line -az of Figure 2.

` Referring to Figure 3 a portion of thev weaving mechanism of the loom is shown, this mechanism comprising harnesses 201 and 203 and a. beater shown at 270 for beating up the picks laid progressively in the shed produced by the harnesses. These parts may be, if desired, of the form more fully Shown and described in the parent application of which this application is a division and which has been referred to above, but as their detail construction forms no part of the present invention, they are not herein further described.

After being .beaten the fabric passes over the take-up mechanism which comprises an upper roll 300 over which the fabric passes, a roll 301 beneath roll 300, under which the fabric passes, and roll 302 in horizontal alinement with roll 301 over which the fabric passes. From the roll 302 the fabric passes downwardly to the arbor or mandrel 303 on which it is wound. The roll 301 is intermittently driven to take up the material as it is Woven and for this purpose its shaft 304 has fixed at the end thereof outwardly of the frame 2 a large gear 305 (see Figures 1 and 4). Between the gear 305 and the frame 2 this shaft also carries a smaller gear 300 which meshes with a similar gear 307 fixed to rotate the roll 300. Both the rolls 300 and 301 are journaled in boxes as shown at 308 and 309 which are vertically slidable in guide recesses 310 formed in each end frame 1 and 2, the upper box 308 being spring supported as shown at 311, on the lower box. The roll 302 is journaled in a bracket 312 fixed or integral with the front" faces of the members 1 and 2. In order that the strands of fabric may not be crushedby passing over these rolls it is preferable to 'lform the upper roll 300 fluted or longitudinally corrugated as shown at 313 in Figure v2, the depressions of these corrugations comthat they are not unduly compressed or'injured, the fabric being engaged substantially uniformly across its width.

For the purpose of driving these rolls intermittently as above described, Aa ratchet mechanism Vhas been provided, this being shown more particularly in Figures 1 and 2. Ontwardly of the frame portion 2 the main drive shaft 15 of the loom carries an eccentric 315 having a strip 316 to which is attached an arm 317. The outer end of this arm may bel pivoted by a pin passed through any one of a plurality of holes 318 therein to the lower endl of a bar 319. The upper end of this bar is fixed to an arm 320 which is pivoted on a shaft 321 journaled between side plates 322, 323 of a Casing made fast to the end frame member 2. This shaft 321 has fixed thereon a ratchet wheel 324 and a pinion 325. The pinion 325 meshes with a gear 326 Carried on a stub shaft 327 also journaled between the side plates 322 and 323 and which carries a pinion 328 meshing with by gravity to engage the teeth of the ratchet wheel 324, such action may be insured by means of a spring 331 fastened at one end to the arm 320 and at the other to the rear end of the paivl. A gravity actuated pawl 332 positioned above the ratchet wheel serves to prevent reverse rotation thereof. lVhile adjustment of the throw of the pawl 829 may be effected by changing the point of connection of the lilik 31T to the bar 319, further adjustment is also provided which may be actuated by the operator while the ma chine is in operation. This means comprises a bell crank member 333 pivoted on the shaft 321. one arm of this lever extending over the teeth of the ratchet wheel 324 and furnishing a knock-ofil engaging the inner end of the pawl 329 on its retracting stroke and forcing it ont of engagement with these teeth. The position of this arm angularly is determined by means of a link 334; pivoted at one end to the opposite arm of the bell crank and at its other end to an army 335 fixed to a rock shaft 340. This rock shaft extends through the frame member 2 across the machine to a bracket fit1 (see Figure l) positioned on the uper edge of the frame 1.

This bracket 341 has an upstanding arcuate portion 342 flanged about its margin and havingits upper segmental flange formed with notches on its edge as shown at 348. Adjacent this bracket the shaft 340 has fixed an arm 344 terminating in a resilient handle portion 845 engageable in the notches 343. By this means the shaft 340 may be rocked and held in adjusted rocked position by engagement of the handle 345 in the notches 343. this serving to change the angular position of the pawl knock-off with relation to the swinging motion of the arm 3Q() to determine the extent of motion of the ratchet wheel at each actuation of the arm 320. This control is at the left side of the machine readily accessible to the operator who may from the same point superintend the feeding of the filling strand and control the main clutch.

The fabric is wound on an arbor 303, journaled at one end in a bracket 366 fixed to the front face of frame member 2, the other end of this arbor being removably fixed between jaws 36T outstanding from a bracket 36S made fast to the frame member 1. The arbor is held in position by means of a cotter pin 369. For the purpose of driving this arbor the shaft B01 outwardly of the gear 5305 has a belt pulley 23:3() and the arbor 303 has a similar pulley lot over which passed a belt i552. The friction exerted between the belts and the pulleys may be adjusted by means of a tightening device comprising an arm 354 pivoted at 355 to a bracket member njt. This bracket has an outwardly extending flange 3T() for receiving the pivot 355. the outer end of this flange being formed as a circular arc concentric with the pivot 355 and having teeth ST1 thereon. The arm carries a pawl 372 engagealile with these teeth. At the upper end of this arm is rarried a belt tightencr pulle\ Cit-2l which bears against' the belt .352. the amount of tension thereon being regulated by the position of the pawl 3.72 against the teeth fii'l. The lower end of the member 2li-l; terminates in an actuating handle Bil.

Having thus described certain embodiments of this invention it should be eridcnt to those Iskilled in the art that many changes and modifications might be made therein without departing from its` spirit or scope as defined by the appended claims.

I claim:

1. In a` loom, a fabric take-up mechanism comprisingr a faluic-engaging element formed to substantially equalize the pressure exerted alongthe filling strands of the fabric surface.

2. Tn a loom, a fabric take-up mechanism including a fluted fabric engaging roll the 'flutes corresponding in position to individual warp strands.

3. Tn a loom. a fabric take-up mechanism including a fabric engaging roll having its surface shaped in accordance with the lateral surface configuration of the fabric produced by individual strands.

Tn testimony whereof I have affixed mv signature. i

EARL F. BALDVIN.

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