US1130599A - Take-up motion of looms for weaving. - Google Patents

Description

D. M. HOLLINS.

TAKE-UP MOTION 0P LOOMS FOB. WEAVING.

APPLICATION FILED DEO.15, 191a.

1,130,,599. Patented Mar.2,1915

"HE NORRIS PETERS CO., PHOTO'LITHIL; \VASHIII'JI'ON. D. C.

DENIS M. HOLLINS, on BLACKBURN, ENGLAND, ASSIGNOR TO nnarnn COMPANY, or

HOPEDALE, MASSACHUSETTS, A'CORPORATION 0F MAINE. I

TAKE-U]? MOTION 0F ILOOMS VJEAVING.

Specification of Letters Patent.

Patented Mar. 2,1915.

Application filed December 15, 1913. Serial No. 806,748. 7

To all whom it may concern Be it known that I, DENIS MAoHnLn HOL- LINS, a subject of King George V of Great Britain, residing at Blackburn, 1n thecounty of Lancaster, England, have invented certain new and useful Improvements 111 or Connected with the Take-Up Motions of Looms for Weaving, of which the following is a specification.

This invention relates to loomtake-up motions and particularly to the positive worm driven take-up motions which'are employed in looms for weaving fustian or velvet or like fabrics,and the object of my invention is to provide means for automatically stopping the take-up immediately the weft fork motion operates on breakage or absence of weft, or on the actuation of the weft replenishing mechanism when weft exhaustion is detected by a filling feeler, in order that the next pick inserted after a change has been made may be beaten up close against the last pick, it being advantageous 1n weaving fustian or velvet to have the picks of weft closely laid adiacent each other.

My invention, and the manner in which 1t is carried into practice, will be descr1bed with reference to the accompanying drawing; in which Figure 1 is a front elevation of so much of a positive worm driven take-up motion as is necessary for thepurpose of enabling the improvements tobe understoodzowhile Fig. 2 is a section on theline AA,Fi2. 1, looking in the direction of the arrow B, certain of the parts shown in Fig. 1 being omitted from this figure. i

Referring tothe drawing, 1 represents the sand beam or roll, and '2 the cloth'beam or roll. Fast on the shaft of the sand roll is a spur wheel 3 which meshes with a pinion 4: integral with or secured on the axis of a worm wheel 5. This worm wheel meshes with a worm 6-fast on a shaft-7' onthefront end of which is loosely mounted a spur wheel 8, to which motion is transmitted through spur gears 9, 10 and 11 from the tappet shaft of the loom. The above parts and, their arrangement" with means to clutch the gear 8 to the shaft 7', constitute an ordinary form of worm-driven take-up motion and do not in themselves form a part of my inventiomwhich consists in providing means wherebyithef gear '8 is unclutchei'l from "the" shaft 7""im'm'ediately the weft fork motion operates on breakage or absence of weft or, if a weft feeler mechanism be employed, in case such mechanism detects substantial weft exhaustion.-

In carrying out my invention as applied in connection with a weft fork motion, I

mount loosely on the usual stop or change of weft. The boss 13 of the lever 13 is provided with a short extension or arm 13 carryinga pin, lug or the like 14 which extends in the path of and is adapted to engage the upper end 15' of a lever 15 pivotally mounted on a stud 16 carried by a suitable fixed bracket 17. The lower end or arm 15 of the lever 15 is formed or provided with a circular portion or ring 15 which is adapted to pass'over, and occupy a position concentric with, a boss 8 on the spur wheel 8.

7 On the'outer or forward end of the shaft 7 is'secured' an arm 18 carrying at its outer end a stud 19 Which is adapted to move freely through an opening in the arm. Near the inner end of the stud 19 is a flange,

collar, or 'thelike "20, which is normallv held in engagement or contact with the face of th'e boss 8 and with the face of the circular portion or'ring 15 of the lever 15 by means of a" spring 21' confined on the stud 19 between the flange or collar 20 and the arm 18.

In the boss 8 of the wheel 8 I form a number of radial slots or'rec'esses 8 into one or other of which the inner end 19' of the stud19 is adapted to enter; the engagement of the said stud with one of the said recesses looking or clutching the spur wheel 8 to the shaft '7Von whichit is mounted. so that the breakageofweft, the movement of theweft fork'slide in the ordinary manner to rock roll I is immediately the stopor change rod 12, rocks the lever 13 and causes the arm or extension 13 of the arm 13 to be moved inwardly or toward the lever 15. This movement of the arm 13 .throughthe pin or lug l e-thereon, causes the upper end of the lever 15 to be forced inwardly or in the direction of the arrow 0, Fig. 2, and the lower end 15 of said lever to be moved outwardly or in the opposite direction as indicated by the arrow 1), Fig. 1.

The engagement of the circular portion .or ring 15 ofthe lever 15 with the collar or flange 20' causes the stud 19 to be forced outwardly, against the action of the spring 2l',and its inner end 19 to be moved clear of the opening or recess 8 in which it happenedto be engaged. v 7

The wheel 8 is thereupon permitted to rotate idly upon the shaft 7 which thus ceases to be driven, so that the motion of the sand arrested and the takeup ceases. 1 7 7 7 Onnormal conditions being reestablished and the weft fork slide moving back to normal position, .the circular'portion or ring 15 -is released and the stud 19 isforced back against the face of the boss 8. The wheel 8 being constantly driven, the inner end of the stud 19 isforced into the first opening or recess 8 -which is presented opposite thereto, and the wheel 8 is again locked to the worm shaft 7 to cause motion to be transmitted to the sand fabric. v I v The spring-actuated stud 19 is provided on its outer end with a knob or device 19 to enable it to be drawn outwardly by hand to free it from the boss 8 of the wheel 8, and when thus drawn out it serves as a handle to the arm '18 and enables the operative to rotatetheworm shaft 7 forwardly or backwardly at will to windi-up or let back.

the fabric. v

The pin 14: may be carried by an extension on the boss of the usual fixed arm 22 instead'of being carried by an extension on a separate arm loosely mounted on the stop or change rod as shown.

The construction and arrangement ofthe parts may be varied without departing from my invention. :Ifthe improvements are appliedin conjunctionwith' a Weft feeler motion,-the lever 15 maybe arranged to be' bination of a shaft, a sand or take-up roll,

means for driving the latter from the forrollto take up the other of said openings or recesses, said pin being provided with a flange or collar, a

lever having a portion underlying said flange or collar, and means to rock saidlever to disengage the pin from said openings or recess when filling is absent or substantially exhausted.

r 2. In a loom take-up motion, the combina .tion with a shaft carrying a worm by which 'Inotion'is transmitted to the sand roll and a driven spur wheel loosely mounted on said shaft, of an arm fast on said shaft, a spring'actuated stud carried by said arm, a boss on said spur wheel having in its face a series of radial openings or recesses in one or other-of which the inner end of the spring actuated stud is adapted to engage, a pivoted lever having a circular portion: or ring encircling or concentric with the said boss,

a flange, collar or the like on the stud adapt-' ed to be engaged by said ring or circular portion, and means to cause said lever to be rocked, on indication by the weft forkn1otion of breakage or absence of Weft, or on indication by the weft feeler motion'of'weft exhaustion.

3. In a take-up motion for looms, thecom- V bination of a pinion or spur Wheel continuously operated by a going part of the loom, a takeup, means for transmitting motion from said pinion or spur wheel to the takeup including a shaft, an arm carried by said shaft and having a pin for operatively'engaging the pinion or spur wheel andsaid shaft, a fiangeor collar mounted on said pin, a leverhavinga part underlying said flange-or collar and bearing upon a face of the pinion spur wheel, and means for causing saidlever tomove the pin and interrupt the operative'relation between the shaft-and pinion or spur upon detection of filling absence or substantial exhaustion.

4- In a take-up motion for looms, the com bination of a shaft, a take-up or sand roll, means for driving the latter from the former, said means including av continuously driven pinion or spur wheel, a" combined manually and automatically controlled pin device for operatively connecting and disconnecting the shaft and pinion or spur wheel and having a hand engaging head and a flange or collar, a lever having a bearing portion on .which said flange or collar travels, and means for actuating the lever to automatically disengage the operative connectionsbetween the pin and pinion or spur wheel upon detection of filling absence or substantial exhaustion.

5. In a take-up motion for looms, the combination of ashaft, a worm fixed thereto, a take-up or; sand roll, operating con- 10 rests, and means for tilting the lever to disengage the pin from the openings or recesses upon absence or substantial exhaustion of filling. 1

In testimony whereof I aflix my signature in the presence of two Witnesses.

DENIS M. HOLLINS.

Witnesses:

JOHN WILLIAM THOMAS, ERNALD SIMPSON MOSELEY.

fiopies of this patent may he obtained for five cents each, by addressing the Commissioner of Patents,

Washington, I G.

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