US2564342A - Cloth roll support device - Google Patents

Description

14, 1951 J. RINNE ETAL 2,564,342

CLOTH ROLL SUPPOR' l DEVICE Original Filed April 12, 1947 I 2 Sheets-Sheet l 1 INVENTORS.

- JOHN RINN l EVERETT H.ASHTON I ROBERT c. MALLARD E FRANCIS GERARD LAKE BY W41 12 ATTORNEY 1951 J. RINNE ETAL 2,564,342

CLOTH ROLL SUPPORT DEVICE Original Filed April 12, 1947 2 Sheets-Sheet 2 l A I /K 275 268 P45 276 285 INVENTORS. NNE

H. SHTON Patented Aug. 14, 1951 Jiihn Rinn'e, Staten Island, N. )Z and Everett H.

Ashton, Allston, and RobertG. Mallard, Hopedale, Mass, and Francis Gerard iiake, New' York, N. Y., assignors, by mesne assignments, to Steel and Alloy Tank Company, Newark, N-J' a corporation-ofNew Jersey Original application April 2" 1947., Serial No.

739,004, new Patent No. 2, 5

,18'5, dated August 8, 1950. Divided a'h'd this ao -lieation rebruary 3, 1950., Serial No.14'2,201

2 "Claims. (01. res- 308) fillhe present invention relates to a cloth roll take-up mechanism for looms and is a division o f application Serial No. 739,004, filed April 2, 1 -94 7, now Patent No. 2,518,185. I

:It the principal object of this invention to provide a new and improved cloth roll supporting means which effects automatic lowering of thetcloth roll axis as the diameter of said roll increases, while maintaining said roll in friction "drive contact with the take-up roll, which permits selective adjustments in the pressure with which said cloth roll contacts said take-up roll fordriveaction, which permits a full cloth roll to be easily removed therefrom and an empty cloth roll to be easily mounted thereon, and 1 which permits easy manipulation of the cloth toil up or down with respect to the take-up roll. various other objects of the invention will be apparent from the following particular zdescription,-and #from an inspection of the accompanying drawings, in which:

, :Fig. 1 is a front .view of the left-hand :side of a loom embodying the features of the present invention, certain parts of said loorn not related to the present invention being absent from the view for the purpose 'of clarity;

Fig. 2 is a section of the right-hand :side *of the loom looking'outwardly, taken approximately along the :lines :2-2 of Fig. 3, and :showing in the :main the cloth roll structure and the support therefor at the beginning of cloth winding operation;

.Fig. 3 is a section of the loom taken approximately along the lines 3 -3 of Fig. 2.;

Fig. 4 is *a detaiLsection of the:'cl0th --ro11 ratchet taken along the lines 4- 4 of Fig. 3; and

.Fig. 5 is a detail section of the cloth -rol1 -tension spring adjustment collar taken along the lines 5--:5 of Figs-3.

Referring to the drawings, and especially to Fig. N1, the loom frame may be of the conven- 'tional type, but is desirably-of the improved form shown in copending application, Serial No. 691,237, filed August 17, 1946, now Patent vN0. 2,533,128. In this improved type of loom, instead of the conventional loomsid'es, each with a single .frame web, each loomside comprises a pairof parallel webs l0 and II rigidly interconneoted by suitable vgirts and bracing members.

'Mounted near the front section of the loom is the take-up motion comprising a take-up roll I2 supported on the loomsides and covered with sandpaper or similar rough surfaced material adapted to 'frictionally grip the cloth -A after it is formed and advance it towards the cloth roll .2 i 43. T-hecloth .roll 13 is pressed into *contact with the take-up r011 l2 and is friotionallydriven thereby to wind the cloth aroundsaid roll 43.

The take-up roll 12 has secured to the ends thereof rgudgeons .jour-nalled in suitable hearings on the inside :frame webs ID. One of; the gudgeons 011 the left-hand :loomside has secured thereto between the two frame webs al and 4-1 a gear 1 6 bywhich the take-up roll 12 ispontin uouslydriven as the cloth is formed. The take up roll gear I 6 .is dri-ven from the \crank shaft- 0f the loom Knot shown) which extends parallel to the axis of the take-up roll L2,, and which drives through a pair-of intermesh-ingrgea-rstnotshowr), a short .pick ca-m shaft below said crank shaft @011 the --left-hand side of the loom. 0n the mick cam shaft is aconnecteda bevel .gear meshing with a :bevel .gear on a drive shaft. Between the drive shaft and the take-up roll :gear l 6,=is 1a take-up :gear transmission 25. gL'he transmission 25 and the associated mechanisms are not the basis :of the 'claims of this application and will not he described particularly as they are fully shown and described in said parent application Serial No. 739,004.

A pressure applying means 200 is provided (for maintaining the cloth A in controllable pres sure gripping contact with the periphery of the take-up roll '12, to afford effective advancement of the cloth A towards the cloth roll I3. The pressure applying means 20!! is fully "disclosed in said parent application "Serial No. 739;00.4 :and will not bexgone into in -:deta-i1 :since it does not form the basis for the claims of this application. The pressure means 209 includes a pressure roll extending in front of the take-up roll 12 "and along substantially the full length thereof, and supported at its ends :in a pair :of upright arms mounted at their lower ends in pivots secured to -the inner sides of the inside frame webs iilfl. To :press the :ro'll of pressure applying means .200 against the "-take up roll 1'2, pressure apply ing m'e'an's 230 includes cam arrangement for moving the pressure roll about its pivot sup ports and for holding said supports in any "selected position.

The full cloth roll ['3 maybe lowered out'of drive "engagement with "the'take-up roll '12, hand the cloth cutoff, to .permit said cloth roll to .be removed from theiloom without-moving thepressure roll .200 out :of contact with said take-up applying :means. The cloth will therefore :remain threaded in position around the take-up roll l2 while :a new emptycloth roll is :being set lip on the loo-m; thus the cloth roll !3 may be removed while the loom is running. v

The cloth roll '13 is maintained infriction drive contact with the lower section of the take-up roll (2 to rotate said cloth roll at the speed necessary to wind the cloth therearound. For supporting the cloth roll IS in a manner to compensate for the progressive increase in its (ii-- ameter, as the cloth winding operation proceeds, there is provided a cloth roll support axle 24!) mounted at its ends in bearings 24! fixed to the inside frame webs !9. Supported on the axle 240 for angular movement thereabout is a cloth roll support frame 242 comprisin a pair of arms 243 and 244 having respective hubs 245 embracing the axle 240 with a snug rotative fit, andv rigidly interconnected by means of a cross frame piece 246. The frame piece 245 is preferably of circular segmental cross-section, and may comprise a segment of a pipe welded to the support arms 243 and 244, and extending concentrically of the roll axle 249.

The outer roll supporting end of each arm 243 and 244 is provided with a notch 241 for receiving the gudgeon 259 of a cloth roll shaft 25!. The cloth roll shaft 25! includes at its ends the gudgeons 259. The cloth roll shaft 25! is thereby free to rotate in the cloth roll support arms 243 and 244,. and is rotated by the friction drive engagement of the take-up roll l2 with the cloth wound around said cloth roll shaft 25!.

The cloth roll support arms 243 and 244 are urged angularly upwardly about the axle 246, to maintain the cloth roll !3 in frictional contact with the take-up roll !2 under yieldable spring pressure. For that purpose, there is provided at each end of the cloth roll support axle 246 a torsion spring 260 encircling said axle, and having one end engaging a lug 26! fixed directly to the axle 246, and having its other end engaging a lug 262 fixed to the corresponding hub 245. The coil spring 269 is torsionally stressed by the two lugs 26! and 262, to urge the cloth support arms 243 and 244 in a counterclockwise direction, as viewed in Fig. 2.

At the beginning of the winding operation, when the cloth roll support arms 243 and 244 are in their uppermost position shown in Fig. 2, the springs 266 are torsionally stressed to their lower values. As the diameter of the cloth roll 13 increases, the cloth support arms 243 and 244 are moved angularly clockwise about the axle 24!], thereby increasing the torsion stress on the springs 269. The springs 269 thereby automatically compensate for the progressive increase in the-weight of the cloth roll !3, so that effective friction driving engagement of said cloth roll with the take-up roll !2 is maintained throughout the cloth winding operations.

Means areprovided for adjusting the torsion stress of the springs 266. To that end, there is keyed to'each end of the axle 249 a ratchet wheel 265. Pivotally mounted on the inner side of the corresponding inside frame web I0 is a pawl 266 supported on a pivot stud 261 on said frame web, and cooperating with the teeth of the ratchet wheel 2.65. Also keyed to each end of the axle 249 near .the ratchet wheel 265 is a spring adjusting collar 268, desirably comprising two sections secured together by means of studs 21!], as shown in Figs. 3 and 5. The collar 268 is of hex agonal shape to receive a suitable turning tool, and serves not only as means by which the torsion stress on the springs 299 may be varied through rotation of the axle 240, but also as a 4 means for spacing the cloth roll supporting frame structure 242 from the inside frame webs I6.

When it is desired to increase the torsion stress on the spring 269, the collar 263 at each end of the axle 249 is rotated in a direction to permit the corresponding ratchet wheel 265 to ride idly past its pawl 266. The detent engagement of the pawl 266 with the teeth of the ratchet wheel 265 locks the axle 240 against reverse rotation, and thereby prevents release of the adjusted torsion stress on the corresponding spring 260.

For lowering the cloth roll !3 by hand out of friction drive engagement with the take-up roll !2, as for example, when it is desired to remove a full cloth roll and to replace it by an empty one, one of the cloth roll support arms 243 has a handle extension 215. To maintain the cloth roll !3 in any selected elevational position out of engagement with the take-up roll !2 and against the action of the springs 26!], there is secured to the inner face of one of the inside frame webs H) adjacent to the cloth r011 support arm 243 an arcuate ratchet bar 216 substantially concentric with the cloth roll support axle 246, and having a series of teeth 211 separated by spaces or notches 218. The outer upward edge of each tooth 211 has a bevelled surface 280 for the purpose to be made apparent. Aligned with notch 241, rigid with the cloth roll support arm 243, is a pivot stud 28!. Supported on said stud for rotation thereabout is a pawl 282 adapted to ride over the outer surface of the ratchet bar 216, and urged into contact with said ratchet bar 'by means of a torsion spring 283. The pawl 282- has a bevelled cam surface 284 at its outer end, which is adapted to ride idly over the bevelled edges 290 of the ratchet teeth 211 as the cloth roll support arms 243 and 244 are swung downwardly about the cloth roll'support axle 240, so that the downward movement of said support arms is effected without interference from the ratchet bar 216. The upward movement of the cloth roll support arms 243 and 244- is, on the other hand, prevented by the locking engagement of the pawl 282 with the ratchet teeth 211.

To release the pawl 282 from looking engagement, with the ratchet bar 216, and thereby to permit the cloth roll support structure 242 to be raised upwardly, the pawl 282 has a handle extension 296 comprising a section. 29! rigid with the pawl 282, and a section 292, which normally hangs downwardly from said handle section '29! as shown in dot and dash lines in Fig. 2, and which may be latched into locking engagement-with said handle section 29! to form a horizontal handle extension therefor, as shown in full lines, when it is desired to render the pawl 282 inoperative. The handle section 292 has at one end a fork 293 flanking the handle section 29!, and carrying a pair of pins 294 and 295 between the branches thereof. The handle section 29! has'an elongated slot 296 for receiving the pin 294, and the outer end of said handle section 29! has a notch 2s! for receiving the other pin 295 m normal inoperative position, the handle section 292 extends downwardly, as shown in dot and dash lines in Fig. 2, with the pin 294 resting at the bottom of the slot 296 in the handle extension 29!. When it is desired to render the pawl 282 inoperative, the handle section 292 is swung coun terclockwise from the depending position shown in dot and dash lines in Fig. 2, until said section is in alignment with the outer end part. of the handle section 29!. In this position, the handle section 292 is moved inwardly to the left to bring the pin 295 into the base of the notch 291 of the handle section 29 I, and to bring the other pin 294 into the lefthand upper end of the elongated slot 296. In this position, the two handle sections 291 and 292 will be locked in position for clockwise rotation of the handle 29!). The clockwise rotation of the handle 299 will move the pawl 282 out of the path of the ratchet bar 216. While the pawl 282 is in this released position, the cloth roll support structure 242 can be raised through the action of the torsion springs 269 without interference from the ratchet 216 and the pawl 282.

To efiect the upward movement of the cloth roll support structure 242 through the action of the springs 260 at controlled rates, the pawl supporting handle section 29l pivotally carries a brake shoe 298 lined with suitable braking material, and adapted to be moved into braking engagement with the ratchet bar 216, which for that purpose, serves as a brake drum. By angular manipulation of the handle 290 about the pivot stud 28!, it is possible to move the brake shoe 298 towards and away from the brake drum section of the ratchet bar 216, and thereby control the ascent of the cloth roll 13 towards the take-up roll l2 under the action of the torsion springs 269.

As many changes can be made in the above apparatus, and many apparently widely different embodiments of this invention can be made without departing from the scope of the claims, it is intended that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense.

What is claimed is:

1. In a take-up mechanism for a loom, a cloth roll, means supporting said cloth roll for movement towards and away from driven position, spring means urging said cloth roll towards said driven position, a fixed brake frame plate extending substantially parallel to said movement, and having ratchet teeth, a pawl carried by said cloth roll and adapted to cooperate with said ratchet teeth to lock said cloth roll against movement towards said driven position in opposition to the action of said urging means, while permitting said cloth roll to move away from its original cloth roll driven position as the diameter of said cloth roll increases during cloth Winding operations, a handle for moving said pawl in and out of cooperative position with respect to said ratchet teeth, a brake shoe carried by said cloth roll and movable by said handle towards and away from said brake frame plate, to control the movement of said cloth roll towards driven position under the action of said urging means.

2. In a take-up mechanism for a loom, a cloth roll, means supporting said cloth roll for movement through an arcuate path towards and away from driven position, spring means urging said cloth roll towards said driven position, a fixed brake plate extending substantially parallel to said path of movement and provided with ratchet teeth spaced along its length, a lever, having a handle extension, pivoted intermediate its ends on said cloth roll, said lever including a pawl on one side of its pivot point adapted to cooperate with said ratchet teeth to lock said cloth roll against movement towards said driven position, said lever also including a brake shoe on the other side of its pivot point adapted to frictionally engage said brake plate to reduce the urging action of said spring means, and spring means biasing said lever to carry said pawl towards said ratchet teeth.

JOHN RINNE. EVERETT H. ASHTON. ROBERT G. MALLARD. FRANCIS GERARD LAKE.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 674,424 Meats May 21, 1901 1,691,145 Bergstrom et al Nov, 13, 1928 2,420,178 Kronofi et al May 6, 1947 2,425,781 Bergstrom et a1. Aug. 19, 1947

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