US1630428A - Take-up motion for looms for weaving - Google Patents

Description

J. H. HINDLE ET AL TAKE-UP MOTION FOR LooMs FOR WEAVING May 31, 1927. 1,630,428

Filed Sept. 30. 1925 c R i refinem nt (1fSantana an eaterrm:-

are interposed, the v the peripheries of cloth against both to prevent t-moving backjohn assi t-11mm.

' Timer bs B w a This invention for'lo'oms ro r'wea%&ing mdrs particular plicable to; looms-for 'weax' ingfheavy w de fabrics", such as. dscribed ii'i ou1',concur re11t application of even date, Serial No. 59,736.

7 According to the invention between aglap J roller and the breast beam ofthe loon'n apair of plainrollers one above the other in a vertical plane and'an K118511113 roller n1 p roller rest ng aga nst ward suitable intermittent *gearing being intermediate nip rollers. r T heinventio'n will be fully described with reference to the accompany ng drawings pro'vided to drive": the lap roller and the Fig. 1 isatransverse sectlon through the nip rollers andlap-roller'sQ; 5

for operating the rollers-. v

" Fig. 8 is a plan o'l' Fig. j

Fig. 2 is a'sideelevation showing- Fig. 4 is a frontele'vation' of the rollers with the'idlevnip iroller I) removed. 1

Below or in front-of tne breast beani A of the loom two plain rollers'B and C- are' mounted in a vertical plane-one above the other in suitable bearingssome distance apart on the gable end-A of the loom and geared soas to rotate in tlie'saine direction.v

A nip roller D is soplaced in relation to the two rolle'rsB and Gas to bear againstthe periphery 'sition 111 a ,free to move to and from the rollers,

' and 1D is a lap roller Eireely mounted inasiiitable' of both and is maintained in bearing bracket cZ in which" it 1s In front of the nip'rollers B, C

frame F and driven by -a roller G. V The' cloth w from the breast beam A passes partly-around theroller B 'andback and over and under the roller C forming aloopj or pocket at one side around the nip rollen o-rint'o which the nip roller D is placed;-

When the cloth is taut itis drawn tightly upon the rollers B and Gand nipped against their peripheries by the pressureot the cloth Jon the nip roller D.

The take-up motionis driven wheel a on a fixed stud in the frame revolving at crank speed geared with Wheel b on the cam 1 or. tappet vshaft (not shown).; The'wheel a is employed todrive the takeup gear, instead of the'crankshaft itself fortwo reasons,

the "facility ofritiming the momentof the take up w1th relation to the remaining operations of weaving, and forfconvemence, $11106 PTTHQMAS ime 'j ssisnaem .0 takeu motions r T pe fran1e A -The pawl "e' is carried by; an 1 gearing inanner the 'rollersi are intermittently 1m:

tatedthe required am ou nt'in the directioninfdicated by thev arrows;

' the lap roller E resting by Y gravity on the:

to protect by'L'etters- Patent is T l P n e May 31; 1927', e

the wheel assists asi1yf6nne ted ite t take-up'inechani ni tl'ian' the er klghgftit I would be.

' The wheel a carries -acranl'r pin a l 1a reciprocating j'conneting' rod fel to the free) r end of whlcha pawl e-is plvotedto drive a r ratchet heel The pin a? to which the n ng ibdilt is pivoted is adjustable for throw sothat any-number of teeth from" one i to five'orjs x' on, the ratchet wheel f may be taken up ateach revolution of the Wheelal' "gj revolvingir in bearings? provided g in a t bolted to;the outside ofthe end;

oscillating arm 1L fonthesh'aft'g and a checklfi' pawl 7c prevents any backward'movementof the {wheel Up'on the shaft g'is a pinion} driving spur wheelf n keyed to shaft 0 which passes through the end frame ofthe loom-and carries the-pinionp. The pinion hp p gearswithtwo'spurawheels p p oneon each ofthe'take-up; rollersB and C." In this The roller Gv upon machine lap l'roller rests'is positively driven simultaneously ,withl 'd the rollersBand a connecting rod.iq,- M pawl 4 anchrat'c'het iwheel jsand thejcompound spur trainit; I v The cloth passes frond -the-=b1east'beain around the take upandniprollers B, G and 'Dto-the lap frame F'where it is wound ondriving roller G 'lhe rollef-s' arenormallysmoothiand tlieil."

drive the. cloth bylvirtueofithejlarge total angle of contact. provided. between the cloth and the rollers. The cloth passes-under and partially around thedrivenrollerG and this 'is a. matter of some iniporta ncefin. securing I a good drive: of the lap roller 13,; since there mav be an appreciable tension in the cloth passlng jrorn the m tothe lap frame* and somerelia nce is placed upon this tensionin "f creasing the efiiciencyfofthe drive between theiclothiand thetake-u p rollersBfC'andw" D. l TherollerG may be driven at a greater 1 peripheral velocity than the rollers 13 'andfl' G'either to ensure the tension in the cloth at X or to actually stretch the clothlength 'wa'vsflb efore itis wound on the lap roller; I} 1 is llO 3 What we claim as our invention and desire 1. Aftalie up motionlfo'rlooms comprising;

Images