US905207A - Cloth-cutting machine. - Google Patents

Description

d. FLMITCHELL a; J. L. BARKBR.

GLOTH CUTTING MACHINE. APPL'IUATION FILED H1143, 1908.

Patented Dec. 1,1968.

C. F. MITCHELL 6v J. L. BARKBR.

CLOTH UUTTING MACHINE.

ArrLIoATIoN FILED un. 1a, loos.

Patented Dee. 1, 190s.

3 SHEETS-SHEET 3.

a4 mvENTons." h CMM i www.

- To all whom 'it *may concern." I

UNITED sn-fiTl/ts.iN

CHARLES F. MITCHELL, oF LEvENsHULMn-MANCHESTER, AND JOHN: L; mmc-En, oF Mo'sToN,

ENGLAND.

- fCzpTn-Cur'rmo Specication of Letten. Patent.

Patented Dec. 1, '1908.

i Appuaaonmi Apru 18,1908. snm Hamam.

Bc it known that we, ARLES' MrrCHELL'and JOHN LORD BARKER, British subJects, and'resldents, CHARLES FREDERICK MITCHELL, of Levenshulme, Manchester,

county of Lancaster, England, and JOHN LCRD BARKER, of Moston, county ofLancaster, En land, have invented certain newfand useful mprovementsfin Cloth-Cutting Machines, of which the following is a specific'atlon. *y .This invention relates to improvements in apparatus for manufacturing or producin long lengths of cloth upon the bias e., wit

the warp' and weftl thread at an angle or in. clination of 45 to the edge of the cloth.'

The invention consists essentially in apparatus for cuttingV a circular or tubular cloth' into len ths sfpirally `constructed with a stationary rum Xed obliquely -to'rollers for drawing the fabric forward, a knife fit-` ted to the oblique drum `for severing the cloth as it is 4drawn forward and spiked bands driven by the drawing rollers over the ends of the drum to engage the cloth and v draw it forward as it is cut. 1

It will be fully described with reference to the accompanying drawings, forming part of the specification. t t

Figure 1. isl 'a side elevation of the machine. Fig. 2.4is a plan of same Fig. .3.k is a perspective diagram of the operative parts Fig. 4.-. `is a perspective view of holder for paying 0H the cloth. Fig. 5. is a modification `of drum `A formed `with wire'. Fig. 6 is a modification of drum A similar tot Fig. 5. with `rollers attached. Fig. 7. is a modification/of drum A with roller temples attached.

The cloth is woven tubular or circular of any desired diameter in the usual way .for weaving a'tubular fabric, and is then cut s irally upon a suitably constructed machine thereby producing a full length of cloth which is on the bias or in which the threads both warp and weft are at an angle of 45 to the edge of the fabric. The fabric is subsequently cut llengthwise and crosswise into any size that may be desired.

The machine is constructed `with a cylinder or drum A to receive the cloth with a conical or pointed end to enter the ,tubular fabric and enable the cloth to be drawn on to the drum ina continuous len h. The end of cylinder A projects beyon or over- FREDERICK i \`\The `cylinder A is' stationary and set obliqucly to` a drawing or pulling roller B .and a` pair of taking up ro lors C C placed `behind it by which the` cloth is drawn over rthe oblique cylinderv A and carried away g from it when severed. The cloth when cut maybe rolled u 'into a roll on the.'roller C, or it may be fo ded or plaited by the usual machine not shown.v

At the overhanging or `front end of the cylinderA a circular, knife D (or other knife `rorshears) is mounted. The axle of the knife D is set parallel tothe rollers B and C at an angle .of 45 to the longitudinal axis of hangsthe'support or frame B upon which it A is mounted so-as to offer no obstruction to `the cloth as it is draw-n forward over it.

the cylinder A and cuts or severs the cloth as it is drawn forward on to the cylinder. The knife vD is operated by band d. A roller or weight a is placed in the bottom of the cylinderl Ato project through a slot therein to take'u any slack in the cloth as it passes the knife y To `assist the roller B in drawing the cloth over the cylinder A and to keepait out to the desiredfwidth and prevent it contracting laterally two bands or chains G and H furnished with pins or s likes .g and it are driven by the drawing rol er B.

t The spikedband or chain G passes over one, end `of .the drawin roller B and over a pulley g mounted in t 1e interior of the cylmder A the band or chain passing through a slot tin the cylinder. The band is placed so that the pins g rise up above the surface of vthe cylinder and engage the cloth at or near the edge where it is severedL by the knife D and revents itcontracting as it is drawn forwar by the rollers.

The spikes referably enter the cloth at a little distance efore it reaches the knife.

'I he spiked band or chain H emerges from a slot a2 and traverses a spiral groove a in the surface of the cylinder A the pins h projecting above the surface of the cylinder. The band H then passes over the other end of the drawing roller B and enters the interior of the cylinder through a slot and passes over the uide pulleys k3 h2 h in the interior of the cy inder and then emerges again from the drum A.l The pins h of the bar/1d H engage the other ed e of the cloth as it is severed by the cutter and carry lthe edo'e spirally around the cylinder'A and stretch it out drawing roller B'.

The spiked bands as descr` )ed are considered the best means for'keeping the cloth from shrinking but any of the other devices usually employedfor this purpose may be utilized, suchfas temple rollers, as shown in Fig. 7.

In front of-t-he cylinder A' a roller K is mounted upon which the tubular fabric is rolled and from which it is delivered to the machine. The roller K is mounted in a frame L in bearings to rotateabout its longitudinal axis and in a standard M with bearings mf to also rotate in a plane at right langles thereto as the roll of cloth on the roller K will be rotated in both planes as it is delivered to and drawn spirally over the cylinder A. The cloth may be delivered to the cylinder A by any other suitable. mechanisiu. i v

Instead of a drum or cylinder a number of bars a3 or rollers a* mounted in a suitable frame to form -a skeleton cylinder may be employed in substitution for the cylinder A (see Figs. and 6) or roller'temples a5 as shown in Fig. 7 may take the place of the spiked band.

In cases where the cloth to be cut has already been proofed or finished with a preparation of rubber or other mixture and it is desired to cut it into more than one strip a shaft It carrying additional knives 7 may be fixed in a convenient position preferably below the drawing roller B and in front of the' taking up roller C. The knives being capable of sliding upon the shaft and of being fixed at various distances apart as desired.

The machine may also be constructed to "cut cloth at angles other than that of in -which case the knife and drawing rollers would be set at an angle to the longitudinal axis of the cylinder equal to the angle at which the cloth was required to be cut.

What we claim as our invention and desire to protect by Letters Patent is l. Apparatus for cutting a tubular cloth spirally to produce long lengths of cloth upon t e bias comprising in its construction a stationa-r cylinder and drawing off rollers set oblique y to one another and a cutter set in the cylinder to sever the cloth scpirally as it is drawn forward over the cylin er by the drawing rollers, and means for drawing the `cloth across the cylinder and means for exas it is cut substantially as dedrawing rollers and bands provided with pins which carry forward and expand the cloth as it is cut substantially as described.

3.`Apparatus for cutting a tubular cloth spirally to produce long lengths of cloth upon the bias comprising in its construction a stationary cylinder drum or frame' over which the tubular cloth is drawn, drawing rollers to which the drum is set obli uely, a cutter fitted at the front end of the rum to sever the cloth spirally as it is drawn forward, and bands with pins to engage the edges of the severed cloth to prevent the cloth contracting as it is carried forward substantially as described.

4. Apparatus for cutting a tubular cloth spirally to produce long lengths of cloth upon the bias comprising in its construction a stationary cylinder and drawing off rollers set obliquely to one another and a cutter set in the cylinder to sever the cloth s irally as it is drawn forward over the cylin er by the drawinlg rollers and bands provided with pins w ich carry forward and expand the cloth as it is cut, rollers to take up the cloth and knives to divide it into strips substan, tially' as described.

In witnessl whereof, we have hereunto signed our naines in the presence of two subscribing witnesses.

CHARLES F. MITCHELL. JOHN L. BARKER. Witnesses:A

J. OWDEN OBRIEN, HARRY BARNFATHER.

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