US920122A

US920122A - Apparatus for stretching textile fabrics.

Info

Publication number: US920122A
Application number: US37164307A
Authority: US
Inventors: Frank Farnworth
Original assignee: Individual
Current assignee: Individual
Priority date: 1907-05-03
Filing date: 1907-05-03
Publication date: 1909-05-04
Anticipated expiration: 1926-05-04

Description

P. PARNWORTH, APPARATUS FOR STRETGHING TEXTILE FABRICS.

Patented May 4, 1909.

APPLIOATION IILED MAY 3, 1907.

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FRANK FARNWORTH, OF RAMSBOTTOM, ENGLAND.

APPARATUS FOR STRETGHING TEXTILE FABRICS.

Specification of Letters Patent.

Patented May 4, 1909.

Application filed May 3, 1907; Serial No. 371,643.

To all whom it may concern:

Be it known that I, FRANK FARNWORTH, subject of Great Britain, residing at Rama bottom, in the county of Lancaster, England, Kingdom of Great Britain, have invented new and useful Improvements in Apparatus for Stretching Textile Fabrics, of which the following is a specification.

My invention relates to that type of apparatus for stretching textile fabrics in which a series of rollers, bobbins or tapered. cones revolving on bent shafts or on shafts arranged at an angle are employed and the object is to provide means whereby the tension roller of the said series of rollers can be so raised above a horizontal plane as to cause its middle to lower and its ends to rise, or so lowered below the same as to cause its middle to rise and its ends to lower and thereby simultaneously decrease in the middle and increase at the selvages the tension of the fabric or vice versa respectively, for the purpose of straightening the weft while the fabric is being stretched. I attain this object by the means illustrated in the accompanying drawing, in which- Figures 1 and 4*2 and 5 are end views and plans respectively, and Fig. 3 a detached plan of various embmliments of my invention.

Similar letters refer to throughout the various views.

Referring to Figs. 1. and 2, in this case the invention is shown as applied to a curved similar parts tension roller a composed of revolving bobbins. roller (1 is rigidly clamped to the arms I) and the latter are rigidly held by the pins or rock shafts e and (Z. These pins or rock shafts are rotatably mounted in bearings f which may have screw-threaded shanks g rotatably attached and held in screw-threaded bearings on the frame ends 1' to permit of vertical adjustment of the bearings f or the latter may form art of the frame ends 1. One of the said pins or rock shafts, say (Z, has rigidly secured a handle 7L carrying a spring bolt i and the respective bearing f has rigidly secured a notched segment 76. The said handle serves to raise and lower the arms I) and thus also the roller a and the said spring bolt is adapted to engage in one of the notches of the said segment, and thereby lock the said lever and thus the pins or rock shafts (Z and e and arms I) in the desired position of the roller (1 The fabric to be stretched passes through In this example the shaft c of the l the apparatus as shown in dotted lines and in the direction indicated by the respective arrow in Fig. 1.

When moving the handle 7b in the direction indicated by the respective arrow, that is to say, when lowering it, the middle of the roller (1 is lowered and the ends thereof are simul tancously raised, thus simultaneously taking tension oil the middle and putting tension on the sclvagcs of the fabric as may be required.

-By moving the handle IL in the opposite direction, that is to say, when raising it, the middle of the roller (0 rises and the ends thereof are lowered, the o )posite effect is exer cised. on the fabric, that is to say,thc tension is taken off the selvages and put on the middle of the fabric.

- --Rcferring to Fig. 3, which shows my invention also applied to curved tcnsion rollers composed of bobbins revolving on a shaft c, in this case the aforesaid radial arms are dispensed with and the pin c has a sockctl cranked to receive the respective end of the roller shaft (1 which is secured thereto while the other end of the roller shaft a is correspondingly cranked to form the pin (Z. in this example one of the pins (1, c is also provided with a handle 72 carrying a spring bolt and the respective bearing with a notched segment, such as shown in Figs. 1 and .lteferring to Figs. -11- and 5, which show my invention applied to tension rollers (1 made in two parts set at an angle a radial arm I) is also secured to each outer end of the roller shafts c and secured upon a pin (Z, c mounted in bearings as shown in Figs. 1 and 2. To permit of rocking the pins (1, c and arms 1) simultaneously the latter are connected to gcther by a bar in. and in lieu of a handle 72 and notched segment, such as shown in Figs. 1, 2 and 3, a toothed quadrant 'a may be socured upon the pin d in gear with a worm 0 on a shaft 7 suitably mounted and having a hand wheel g.

I claim:

1. In an apparatus for stretching textile fabrics of the character described, a cu rvcd shaft, a curved tension roller on the said shaft, a bearing adjacent to each outer end of the said tension roller shaft, a pin rotatably mounted in each of the said bearings, means rigidly connecting each inner pin with the outer ends of the said tension roller shafts and means for turning the said pins to raise or lower the middle of the said roller below or above the horizontal plane in which its'cnds lie and means for locking the same in position, all combined substantially as and for the purpose set forth.

2. In an apparatus for stretching textile fabrics of the character described, a shaft, a tension roller on the said shaft, a bearing adjacent to each outer end of the said tension roller shaft, a pin mounted in each of the said bearings, ineans rigidly connecting each inner pin end with the outer ends of the said tension roller shafts and means for turning the said pins to raise or lower the said roller below or above a horizontal plane and for locking the same in position, the said eans comprising a lever secured to the outer end of the said pins, a notched disk secured to the respective bearing and a spring bolt carried by the said lever adapted to engage in the said notches, all combined substantially as and for the purpose set forth.

3 In an apparatus for stretching textile fabrics of the character described, a curved shaft, a curved tension roller on the said shaft, a bearing adjacent to each outer end of the said tension roller shaft, a pin mounted in each of the said bearings, a radial arin secured to the inner end of each piii and its free end to the ends of the said tension rollershaft and means for the joint rotary adjustment of the said pin and arms, to raise or lower the DIlCldlG'Of the said tension roller below or above the horizontal plane in which its ends lie, all combined substantially as and for the purpose set forth,

In testimony whereof I have signed 1113' FM name to this specification in the presence of two subscribing witnesses.

FE; ANK FAR OR TH.

Witnesses JXLFBEDV BossnAnn'r, STANLEY E. BRAMALL.