US1303664A

US1303664A - Stop-motion for textile-machines

Info

Publication number: US1303664A
Authority: US
Publication date: 1919-05-13
Anticipated expiration: 1936-05-13

Description

J. HIGGINSON. I STOP MOTION FOR TEXTILE MACHINES.

APPLICATION FILED AUG.4. 1911. 1,303,664. Patented May 13,1919.

. zsucsrs-smzsn.

W Jlfiarn 6:95,

we NORRIS PETERS cc.. [mow-1.1mm. WASHINGPON. 0. c.

J. HIG GINSON.

STOP MOTION FOR TEXTILE MACHINES. APPLICATION H-LED MGM. 1912.

1,303,664. I Patented May 13, 1919.

ms NORRIS PZYERS 00.. Fnamuma. W/lsnlllliroll. b c.

ITED STATES PATENT OFFICE.

JAMES Hreenvson, or NEWBEDFORD, MASSACHUSETTS, AssIGNon. or ONE-HALF r0 ARCHIBALID s. FULLER, or nnw'ron, MASSACHUSETTS.

STOP-MOTION FOB. TEXTILE-MACHINES.

New Bedford,in the county. of Bristol and State of Massachusetts, have invented new and useful Improvements in StopMotions for TGXlZllG'MELChlDGS, of which the follow ing is a specification. d

This invention relates to stop motiondevices for lapping, drawing, doubling or other textile machines treating a fleece orf sliver of fibrous materiahand especially to machines of this nature adapted to drawby progressively increasing-speed sets of rollers an attenuated lap, fleece or sliver.

It has heretofore been the practice to provide' nachines of the class indicated with mechanically actuated stop motions com-j prising power-release means and a detector device actuated upon breakage or running out of the sliver, lap or fleece, prior to its entrance upon the bank of drawingqolls, railway-head, or the like; and for some kinds of material, it has been possible to actuate the stop motion by breakage of the material after it has been drawn, or between the sets of drawing-rolls. It has also been proposed to detect in such machines the elevation of one or more of the drawing-rolls due to the Winding of an end or a loop of the sliver, lap or fleece about said roll, which sometimes occurs when one part of the material under treatment presents a broken or loose loop, continued operation of the machine when causing breakage of the machine as well as defective product, but such devices as last mentioned are not in general use, perhaps because of defects of construction and lack of reliability in operation.

j The present invention provides improved means cooperating with the existing broken or run-out lap stop-motion devices to occasion stoppage of the wholev machine or of the particular setof drawing-rolls affected whenever any part of the material under treatment laps about or is wound upon any of the drawing-rolls forming a part of the existing machine. Objects of the invention are to provide'a wholly reliable device of this character capable of being attached with a minimum of effort, expense and skill to existing machines, and"toprovide for the sensitive operation of the device'"iinmediately upon the beginning of winding upon all or any part of oneor more ofthe rolls Specification of Letters Patent.

Hreernson, a.

Patented May 13, 1919.

Application filed au ust 4, 1917. Serial No. 184,477.

of a brokenpart or loose loop of an attenuatecl sliver or lap. Other objects are to provide such a stop motion device enabling the rolls to be examined, changed, or cleaned readily without removing the stop motion device.

In the accompanying drawings,

Figure l is a typical section, showing one bank of drawing rolls'of a ribbon lap ma chine with the new device in place; Fig. 2 is a similar fragmentary view showing one detector, the connection therefrom, an a part of the power release device when the machine has been stopped by the occurrence of the fault for which it is desired to stop the machine;

Fig. 3 is a plan, the drawing rolls being removed;

Fig. t is a rear elevation, parts being broken away; and

Fig. 5 is a section on an enlarged scale on line 5-5 of Fig. 3.

Referring to Fig. 1, the ballor wound lap 1 of'material to be drawn is supported as usual on the rolls 2, thesliver or fleece 3 passing over the table 4 through guides 5, over the respective bottom rolls 7 and under the respective top rolls 8 of the drawing rolls, as shown. As usual in the art, bearings 9 for the rolls7, 8, may beopen slots giving upward freedom of movement to both rolls. The respective pairs of rolls 7, 8, are driven at progressive speeds, as

jecting through an aperture 15 in the table A. The lever 1a is pivoted on a knife-edge 16 so that the counterbalance weighted balk 17 tends to raise the detector guide 13, except when the guide 13 is depressed by the weight of the lap or sliver 3.

The balks 17 when permitted to drop are caught between the teeth of a rotating spider 19 and frame-member 18 so as to etc the spider 19 and the spider shaft 20, Figs. 1

and 4. As shown in Fig. 4, the shaft20- may be driven by asgear 21 through a cam-faced clutch 22 normally held together by a weighted lever 23, adapted when displaced by the stoppage of the shaft 20 to-lift a notched belt-shipper rod 24 from its engagementatj-25 with a member of the frame. Rod 24 is provided with a spring, not shown, to shift the belt. The said br'oken lap'or run-out-lap detector and

stopping device

13, 20, 24, etc., is typical ofthe old art and forms no part ofthe present invention except as hereinafter explained.

.In order to adaptsu'ch devices also to stopthe machine whenany'part ofthe'material under treatment winds upon any one of the rolls 7 or s, pro ision is'made to lift the existingdete'ct'or'element, as 13. In'the form shown, a connection between'the yokes 10 and detector'1'3 is provided. This connectionmay comprise 'a'pairof

rocker bars

30, 31, preferably pivoted by perforated lugs 32 on a'fixed shaft '33 hung in bearing brackets 34 bolted to the machine frameat 35 and extending under eachbank of drawing-rolls. The

rocker bars

30, 31 each carry arms36, which may be integral with the respective frames, and which lie in the vertical plane of the last pair or front drawing-rolls 7, 8, the arms 36 restingupon the yokeslO or links 11 so that at least one of the arms 36 will be moved by motion; of, the weight yoke 10 at eitheror, both ends of the roll induced by liftinggtheroll 8, which will, occur when the material under treatment winds upon any part ofeitherthe roll 7 or the roll 8. The arms36panbe integral becausethe weight yokes 10'for' the front drawing-rolls can be swung forward to release the rolls of their Weight, arms 36;;not interferingwith this operation.

llherespective bars

30, 31, which are preferably rectangular in section, also carry arms 37 having slotted bosses 38,'Fig. 4, to take over the respective frames, and having if desired adjustment screws 39, each arm'37 being in therplane of a pair of drawing-rolls so asto rest upon the link 11 or the weight'yokelO. h

Rigid, and preferably integral, with the barr30 is an arm 40, the bar 31 having a similararm- 41. Thesearms as shown in Fig. l eXtendupw-ardly at the rear of the frame carrying thedrawing-rolls, and are connected. by alinkagehavin'g members-42, 43, pivotedtogether and t0- the respective, -arms -40, 41',

as by

ashoulderedpivot screws

44, 45, the.

members '42, 43, having large bosses 46 to prevent the lazyi-

tonglinkage

40,41, 42, 43 from closing upon itself tootightly. As shown in Figs. 4 and 5, the linkage is adjustable to vary; the elevation ofcyokes 10 at'whichthe machine :stops, "as by varying the ;position off-the pivot screws 45; levers 42 an'd 43, for instance, being slotted at 50 to receive threaded and headed shoulder screws 45 admembers 42, 43, terminate inenlargements 48, which normally stand under the detector guide 13 as best shown in Figs. 1 and 4.

The'operation will now be apparent. If any of the rolls 7, 8, are wound upon at any part of their length, either or both the

bars

30, 31, will be rocked on the shaft 33, causing the

arms

40, 41, to approach each other, which movement is transformed into elevation of the

enlargements

48, 48, at agreatly multiplied rate, a slight displacement of either frame resulting, by reason of the

linkage

40, 41, 42, 43, in a large upward movementof the detector 13, and prompt stoppage of the machine by the intervention of the lever 14, balk 17, spider '19 and the devices actuated thereby. The arms 37 may be liftedfrom the

bars

30, 31, whenever'it is necessary to remove 'a top 1'0118, and replaced 'without altering the ustment of screws 39, which are nottightened onthe refs'pectivebars.

WhatI claim is:

1. A stop-motion device for textile machines comprising a breakage or absent-material detector, a power release device worked thereby, means for detecting displacement of 'a roll acting on the material under treatme1'1t,'anda11 operating connection from said displacement detecting means to said breakage detector.

2. A stop-motion for textile machines having pairs of drawing-rolls comprising. power release devices and anindependentoonnection between said devices and -the 'ends of one member of each? pair of rolls, said connections being linked together whereb to inultiplythe' motion'at either end of said rolls efi'ective'to operate said power release devices.

3. A stop-motion for a machine having drawing-rolls comprisingpower release devices, means for detecting displacenient from normaldposition of one or more of said rolls, and a connection between said devices and said means comprising a plurality of rockerbars, and a linkagebetween said bars adapted to actuate said release devices upon movement of one or more of said bars. I

4. A stop-motion for textile machines having aplurality of rolls, comprising power release devices, means for detecting displacement from normal position of any of the rolls acting on the material under treatment, and a connection between said devices and said means comprising a linkage adapted to multiply tolike extentithe.displacement of said displacement detecting means caused by displacement of any of said rolls.

5. A textile Ina-chine stop-motion adapted to be actuated by inaterialunder treatment winding about a bodily movableroll workin gon thesame; havingtherein independent detector means cooperating with each bearing end of said roll, said means being independently movable by motion at either end of said roll, and a connection between the detector devices for the respective ends of said roll adapted to multiply the motion of either detector device, and means operated by said connection for releasing the power.

6. A textile machine stop-motion having power release devices, detector means for a Wound-upon roll, and a connection between said devices and said means comprising a lazy-tong linkage adapted to multiply the motion of displacement of said roll.

7 A textile machine stop-motion comprising displaceable rolls acting on the material under treatment, power release devices adapted to be actuated by a detector acting on said material, and means adapted to be attached to the machine comprising rockerbars respectively having arms reaching to a part displaceable with said rolls, and a linkage between said bars adapted to actuate said detector upon movement of any or all of said rocker-bars.

8. A textile machine stop-motion comprising displaceable rolls acting on the material under treatment, power release devices adapted to be actuated by a detector acting on said material, and means adapted to be attached to the machine comprising rockerbars respectively having arms reaching to a part displaceable with said rolls, and an adjustable linkage between said bars adapted to actuate said detector upon movement of any or all of said arms to a predetermined extent.

Signed by me at Boston, Massachusetts, this 3rd day of July, 1917.

JAMES I-I'IGGINSON.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. 0.