US592714A - George roger - Google Patents

Description

' (No Model.) 2 Sheets-Sheet 1.

'G.ROGER.

MAGHINE FOR CUTTING PILE 01E WEFT PILE FABRICS. No. 592,714. Patented Oct. 26,1897.

(No Model.) 2 Sheets-Sheet 2.

G. ROGER.

MAGHINEAFOR CUTTING PILE 0E WEPT PILE FABRICS. No. 592,714. Patented Oct. 26, 1897.

UNITED STATES PATENT O CE.

GEORGE ROGER, OF WARRINGTON, ENGLAND.

MACHINE FOR CUTTING PILE OF WEFT PILE FABRICS.

SPECIFICATION forming part of Letters Patent No. 592,714, dated October 26,1897.

Application filed January 23, 1897. $erial No. 620,497. (No model.) Patented in England October 16, 1895, No. 19,381 in France February 11,1896, No. 253,846, in Belgium February 11,1896, No.119,'786,' in Germany February 14,1896,No.

88,931, and in Austria December 16, 1896, No. LG/5,021.

To all whom it may concern.-

Be it known that I, GEORGE ROGER, a subject of the Queen of Great Britain, residing at VVarrington, in the county of Lancaster, England, have invented new and useful Improvements in Cutting the Pile of Weft Pile Fabrics, (for which I have obtained patents in the following countries Great Britain, numbered 19,381 and dated October 16, 1895; France, numbered 253,846 and dated February 11, 1896; Belgium, numbered 119,786 and dated February 11, 1896; Germany, numbered 88,931 and dated February 1a, 1896, and in Austria, numbered 46/5,021 and dated December 16, 1896,) of which the following is a specification.

The improvements relate to the cutting of the weft pile fabrics, and are more particularly applicable to cutting on what is known as the long run, although they may be adapted to the short frame, if requisite, and have for their object greater facility in connection with'such'cutting. To accomplish this and to effect my improvements, I mount in any convenient manner at each end of a stretched piece of cloth in a cutting-frame, preferably a drum or pulley, either vertically, horizontally, or at an angle, around which pulleys I cause to pass an endless 'cord, wire, or band, or it may be a light chain-gearing,which cord, wire, or band stretches above the surface of the fabric in sufficiently-close proximity thereto. .Tothis cord, wire, or band I attach at two points a light frame, by'means of which the cutting-knife is actuated in its travel in such manner that as the'band is moved the knife is pulled or pushed along in the race of the fabric. Attached to, connected with, or forming part of each of the pulleys afore said may be arranged a second pulley, preferably'concentric with the first and of smaller diameter, around which smaller pulleys a second cord, wire, or band is caused to pass in such mannerthat as the operator moves the last-named band the pulleys are revolved and the band passing over the larger pulleys is moved to a greater distancethan the actuating-band, whereby a distance of race is cut at one operation which may greatly exceed the travel of the operator, or the operator may remain stationary, moving the cord only within arms length, and yet cause the knife to travel a considerable distance, or, in lieu of this second set of pulleys and bands, a handle may be attached to one of the first-named pulleys, and thereby the knife maybe carried forward by the simple turning of such handle. In like manner a handle may be attached to one of the secondary pulleys above named and the actuation effected thereby in an analogous manner. At the same time the operator can readily become sensibly aware of any varyingactuation given to the knife arising from penetration of the fabric or other cause by means of a screw or other tension apparatus for stretching apart the pulleys to the proper degree requisite for the purpose.

That the improvements may be better understood I will, with the aid of the accompanying drawings, proceed more fully to describe means employed by me.

In the drawings, Figure 1 shows an elevation partly in section; and Fig. 2 a plan view of apparatus arranged in accordance with one form of my invention at the operating end of the stretched piece of clotl1,while Fig. 3 shows an elevation partly in section, and Fig. 4 a plan view of apparatus arranged in accordance with a like formof my invention at the'opposite end of the strained piece of cloth.

The same letters indicate corresponding parts wherever they occur.

a is a portion of the framing carrying the tightening-rollers b for the purpose of stretching thecloth to be cut, as will readilybe' understood,and all details of which a'r omitted for the sake of clearness.

c are the pieces of cloth, although only one maybe operated upon at once; but'it is practicable to operate two, as shown, which may be arranged either to overlap eachother in their width or may be arranged clear of each other side by side.

d is a portion of the framing carrying the special apparatus to be described, theother end being supported by the ordinaryframing a, although, if preferred, the framing may be designed to carry the apparatus independently.

c shows a weft-pile-cutting knife which is preferably carried forward by means of the carrier f, which is supported solely by the stretched fabric and actuated by the band or cord g, which passes around the pulley h, to which is attached the smaller pulley h, and which is driven by the band or cord j, passing around the third pulley 7a, which is operated by the handle Z, as will be readily understood. The cord or band 9 traverses the length of the strained portion of cloth and around the pulley m,which is mounted on the stud 01, attached to the sliding plate orframe o. In similar manner the pulley h is mounted on the slide p,which carries with it the pulley k,with its handle Z, by means of the projection q, the end of which rests and slides on the bar 1', forming part of or attached to the frame a. The slide 1) is caused to synchronize with the slide 0 by means of the cord or band .9, passing from its attachment of the one slide to the attachment of the other slide around the pulleys t, '21, and o. In addition counterbalancing-cords w and w are shown in Figs. 2 and t passing over pulleys, and to the ends of which weights are attached, but which are omitted in the other views for the sake of clearness. Any suitable means may be employed for adjusting the length of this cord for the purpose of keeping the slides in their proper relative positions, and in Fig. 2 a ratchet-wheel 0c and pawl 03 is shown on the shaft or drum 0?, upon which a cord whose other end is fixed, as at y, is wound at intervals by such ratchet-wheel and pawl.

To keep the bandj of the requisite degree of tension, the screw extension .2 is provided, whereby the pulleys 7L and 7c are forced apart or drawn together, as desired.

In operation the knife is set into the race in the ordinary manner, when the handle is turned and the knife-carrier travels with the knife to the opposite end, and is brought back by reversing the motion of the handle. The knife may be attached loosely to the carrier by means of a cord and hook or other convenient arrangement to insure the same being brought back to the operator. lVhen two pieces of cloth are strained, as shown, a knife-carrier is provided to both halves of the cord in such manner that one goes forward as the other returns. By means of the adjustment of tension of the actuating-cordj great delicacy of operation may be obtained, so as to enable the operator to readily feel any variation in the resistance to the force required to actuate the knife. Only just sufficient tension may be given to the actuatingcord to enable it to propel the knife when cutting a single race, so that in the event of the knife meeting with any obstruction or more than normal resistance to its travel the actuating-cord will slip on the pulley and the knife will cease to travel, so that if the knife turns into the slip or double race or makes a hole in the cloth it stops in its progress and thus avoids further damage to the cloth.

In lieu of the handle-pulley a pulley without a handle, as already described, may be employed, and the operator would in that case actuate the apparatus by pulling the cord j to and fro. Also, when only one knife is employed, the pulleys carrying the band g may be mounted in other positions than the horizontal, as shown, and the design of the parts and precise mode of actuating and connecting the same may be made, togetherwith other variations in detail, without departing from the peculiar character of the invention.

Inasmuch as the value and quality of the cloth operated upon by machines of this character depends wholly upon the degree of perfection and accuracy of the cutting of the pile, Ihave discovered from actual experience that by causing the knife or its carrier to ride directly upon or be supported solely by the stretched fabric (whether such cloth is supported or not by a table) the knife will be enabled to accurately follow the curve or undulation of such fabric and thereby cut the pile with great nicety and precision, and at the same time, owing to the delicacy of this operation, the operator instantly feels any 0bstruction or undue resistance to the free travel of the knife, and thereby, knowing that something is going wrong, ceases to propel the knife at once, thus preventing the knife from puncturing or otherwise injuring the cloth.

An apparatus made in accordance with my invention is very simple in construction and can be cheaply manufactured. Its parts are also within reach and can be easily got at for repair and adjustment.

Having now particularly described and ascertained the nature of my said invention and in what manner the same is to be performed, I would have it understood that I do not claim the employment of a running band and traveling knife per se; but

.Vhat I claim is- 1. In apparatus for cutting weft pile fabrics, the combination of a traveling knife or knives supported solely by the cloth, a flexible cord or band carrying said knife or knives, and adapted to be moved to and fro to reciprocate the said knife or knives, substantially as and for the purposes hereinbefore set forth.

2. In apparatus for cutting weft pile fabrics, the combination of a traveling knife or knives, supported solely by the cloth, a flexible cord or band carrying said knives, and mechanism arranged at the opposite ends of said apparatus for supporting said cord or band, substantially as and for the purposes hereinbefore set forth.

3. In apparatus for cutting weft pile fabrics, the combination of a traveling knife 01' knives, a carrier or carriers therefor sup,- ported solely by the said cloth, a flexible cord or band, attached to said carrier or carriers,

pulleys or drums located at opposite ends of the frame and supporting the said cord or band, and means for actuating the said cord or band, substantially as and for the purposes hereinbefore set forth.

4:. In apparatus for cutting Weft pile fabrics, the combination of a traveling knife or knives, supported solely by the cloth, a flexible cord or band, pulleys or drums arranged at opposite ends of the apparatus for supporting said cord or band, driving-pulleys h and k, a cord or band j passing around said last-named pulleys and means for actuating said cord or bandj, substantially as and for the purposes hereinbefore set forth.

5. In apparatus for cutting Weft pile fab rics, the combination of a traveling knife or knives, supported solely by the cloth, a cord or band g carrying said knife or knives, pulleys or drums h and m arranged at opposite ends of the frame, a secondary driving-cord j, pulleys h and is around which cord j passes,

a tension device ,2 adapted to regulate said cord j therefor, carrier-pulleys t, u and 0 on the frame of the apparatus, as set forth, slides o, 19, carrying pulleys h and m and connecting cord or band 8 for moving the slides synchronically across the Width of thecloth, sub? stantially as and for the purposes hereinbefore set forth.

GEORGE ROGER.

Witnesses WILLIAM GADD,

GEORGE FREDERICK GADD.

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