US2057615A - Pile wire for doup heddle looms - Google Patents

Description

Oct. ,1'3, 1936. W, H HALL, JR 2,057,615

PILE WIRE FOR DOUP HEDDLE LOOMS Original Filed Sept. 2, 1933 2 Sheets-Sheet 1 oct. 13, 1936. W HALL, 1R 2,057,615

PILE WIREv FOR DOUP HEDDLE LOOMS l Original Filed Sept. 2, 1933 2 Sheets-Sheet 2 Cil Patented Oct. 13, 1936 UNITED STATES ATENT OFFICE PILE WIRE FOR DOUP HEDDLE LOOMS Sey Original application September 2, 1933, Serial No. 688,019. Divided tober 25, 1934, Serial 'l Claims.

The present application is a division of the copending parent application Serial No. 688,019, filed September 2, 1933.

This invention relates to the weaving of pile fabrics, such as carpet, on a loom normally adapted for the weaving of plain non-pile fabrics, such as canvas or asbestos fabric of the character normally used in the making of brake linings and clutch facings, wherein the sheet or web of fabric after weaving on the loom is cut and folded to provide a required number of layers or plies in the finished frictionized material.

The loom is of an ordinary type Vof well known construction including the usual plurality of heddle frames for manipulating the warp threads in forming open sheds for the passage of the shuttle in carrying a weit thread through the open warp shed in the production of a common one-over-one or a twill weave; and normally is not equipped with any mechanism for forming a pile face on the fabric.

The present invention relates to equipment adapted to be incorporated in a loom of the type noted, whereby a plain pile faced fabric may be produced thereon, all as will be fully disclosed hereinafter, reference being had to the accompanying drawings, of which:

Fig. 1 is a longitudinal sectional elevation of sufficient of a loom of the type noted to illustrate the operation of the elements of the present invention as applied thereto;

Fig. 2 isI a fragmentary view`similar to Fig. 1, drawn to an enlarged scale, illustrating certain parts of the mechanism of Fig. l;

Fig. 3 is a fragmentary perspective view of the support for the'rear ends of the stationary pile wires;

Fig. 4 is a fragmentary perspective view of the support for the front ends of the stationary pile Wires; and

Fig. 5 illustrates a detail of the invention.

As shown in the drawings, the loom comprises the usual transversely extending breast beam I, a series of transversely extending heddle frames 2, 3, 4, 5 and B, in the present instance, and a lay 1 provided with the usual reed or comb having a series of dents 8 formed by and between a series'of laterally spaced blades 9, 9.

In the present instance the warp in the loom comprises a series of stuffer warp threads s, a series of chain warps c, a second series of chain warps c1 and a series of pile warps p, all of which extend longitudinally of the loom through the heddle frames and dents of the reed` and this application Oc- No. 749,979

Also extending longitudinally of the loom, through the heddle frames and lay reed, is a series of pile wires Il), I0, the front ends of which terminate adjacent the breast beam I and are each provided with a head II, clearly shown in Figs. l and 2.

Each head Il is provided with a forwardly extending lug or projection I2, which is seated in a horizontal groove I3 formed in the rear face of a bridge beam I4; and a shoulder I5 abutting the rear face of the bridge beam I4, to prevent forward longitudinal movement of the pile wires I0, IU.

Each of the heads II is provided with a rearwardly extending lug or projection I6 overhanging the forward end of the associated pile wire IIJ. The projection I6, in each instance, is provided with a depending lip II (see Fig. 5), the underside of which, and the corresponding upper side of the adjacent portion of each pile wire I0 are grooved as indicated at I8 and I9 respectively, to receive a thin removable blade 20. Each blade 20 is provided with a cutting edge 2|, which is disposed at an acute angle to the upper edge of the pile wire. Each blade 20 is shouldered, as indicated at 22, to abut the rear edge of the projection I6, to prevent forward longitudinal movement of the blade relative to the pile wire.

'I'he rear end of each of the pile wires I9 is provided with a slot or eye 23 (see Fig. 3), which is adapted to receive a readly removable bar 24 on which the series of pile wires is threaded. The bar is supported by a rear beam 25 which extends transversely of the loom and is permanently fixed, at its opposite ends, to the side frames 26 of the loom, as indicated in Fig. 3. A staple or hook 21 is provided adjacent each end of the bar 24 and rigidly secured in the rear beam 25, to receive the bar 24 and secure the same in xed relation to the rear beam 25, each end of the bar 24 being provided with an opening 28 adapted to receive a cotter pin 29, outside the staple 2l, whereby longitudinal movement of the bar 24 is prevented.

The pile wires I D, while being stationary, insofar as longitudinal movement in the loom is concerned, are permitted a slight relative lateral movement in the slot I3 at their forward ends and on the bar 24 at their rear ends, to prevent binding of the pile wires against the blades 9 of ,the reed, as the lay 'I reciprocates intermediate the breast beam I and the first of the heddle Vframes 2.

The front ends of the pile wires I0 maybe readily removed from the supporting slot |31 of the bridge I4 by the removal of a bar 3i), the lower surface of which forms the upper surface of the slot I3, which is secured tothe bridge beam I4 by means of bolts 3l, as clearly shown in Fig. 2.

The bridge vbeam i4 is spaced above the upper face of the breast beam i, to provide a fabric passage or slot 32, by means of blocks 33 disposed at the opposite ends vof the bridgebeam I, between the said bridge beam and the said breast beam, the bridge beam M, the `bloclrsf33, and the breast beamvl being secured together as a unit by means of screws or boltsn34.

As shown in Fig. l, the stuifer warps s are under the control of the heddle framefE while the chain warps c and c1 are controlled `by the heddle frames 4 and 5 respectively. The pile warps p,

are each under control of a doup heddle 35.

The doup heddles are operated in the manner described in the'above noted parent application,

to carry thev pile warpsp down first on one side of the pile wires l0, then on the opposite side..

The pile wires and the 'mounting therefor, which form the subject matter of the present application, are so constructed and supported that in event of it being necessary for the weaver to tie' in broken warp ends the pile wires l 0 may beseparated in the same manner as the warp threads, i. e. pushed aside by the weavers hands in getting in at vthe broken thread in the shed underlying theipile wires, due to the flexibility of the wires and upon withdrawal of the weavers hands the wires will reassume their normal relative positions immediately or upon the next movement of the lay wherein the blades 9 will comb the wires into place. This is made possible by the fore and aft mountings of the pile wires by which lateral relative movement of the wires is permitted.

I claim:

1. In a loom, comprising a breast beam, the combination therewith of a series. of pile Wires extending substantially at right angles to the breast beam in a substantially horizontal plane, a bridge beam spaced abovel and substantially paralleling the breast beam and provided with a horizontally extending groove, ahead on and formed integral with each pile wire and of a width not'exceeding the width of the wire, said head havingf'air projection extending into said groove for holding each pile wire against verticalv movement and providing for lateralrelative movement between the pile wires, a shoulder on each head engaging the bridge beam to prevent longitudinal movement of the pile wires, a projection on the head and overhan'ging the pile wire, a removable'blade inserted in a slot formed in the upperedge of the pile wire adjacent the head and into a slot formed in the rear edge of the overhanging` projection 'of said head and having a cutting edge projecting at an angle from the upper edge of the pile wire to the overhanging projection on the head, and a shoulder'on the blade engaging the base of the slot Yin said rear edge of said projection on the yead to prevent longitudinal movement of the blade relative to the wire.`

2. In a loom, comprising a breast beam, the combination therewith of a series of pile wires extending substantially at right angles to the breast beam in a' substantially horizontal plane,

-a bridge beam spaced above and inwardly from the front edge of the breast beam and substantially paralleling the'breast lbeam and provided with a horizontally extending groove in its rear face for the reception of the ends of the pile wires and loosely holding said ends of said wires against forward longitudinal and vertical move-v ving groove to facilitate removal of the pile wires Vfrom the bridge beam.

3. In a loom, comprising a breast beam, the

"combination therewith of a series of pile wires extending substantially at right angles to the -breast beam in a substantially horizontal plane,

a bridge beam spaced above and substantially paralleling the breast beam and provided with a horizontally extending groove for the reception .of the ends of the pile wires for holding said ends of said wires against longitudinal and vertical` movement and providing for lateral relative movement therebetween in said groove, a rear beam supporting the rear ends of the pile wires, and a readily removable bar extending through formed eyes in the said rear ends ofV the pile wires to secure the pile wires tothe rear beam.

4. In a loom comprising a breast beam, a Warpcontrolling harness, a back beam substantially parallel to the breast'beam and disposed behind said harness and a lay having a reed comb oscillating intermediate the breast beam and the harness, said loom having a woven fabric passing over the breast beam and a divergent open warp shed extending rearwardly from the fabric through said reed comb and the harness, a bridge beam spaced above the breast beam and fabric, pile wires extending rearwardly vfrom the bridge beam through the reed comb and the harness with one portion thereof substantially Yparallel to the fabric and supported by the bridge beam, a second portion thereof inclined to the first said portion and disposed above and substantially parallel to the upper portion of said open warp shed, andf a third portion Asubstantially parallel to the rst said portion and lying to the rear of said .lay and extending through the harness and anchored at their back ends to said back beam.

open warp shed extending rearwardly from the fabric through said reed comb and the harness, a bridge beam spaced above the breast beam and fabric, pile Wires extending rearwardly from the bridge beam through the reed comb and the harness with one portion thereof substantially parallel to the fabric, a second portion thereof inclined to the first said portion and disposed above and substantially parallel to the upper portion of said open warp shed, and a third portion substantially parallel to the rst said portion and lying to the rear of said lay and extending through the harness and anchored at their back ends to 'said back beam, said bridge beam having a rear groove in which the front ends of said pile wires are slidably mounted for relative lateral movement.

'6. In a loom comprising a breast beam, a warpcontrolling harness, a back beam substantially parallel to the breast beam and' disposed behind said harness and a lay having a reed comb oscillating intermediate the breast beam and the harness, said loom having a woven fabric passing over the breast beam and a divergent open warp shed extending rearwardly from the fabric through said reed comband the harness, a bridge beam spaced above the breast beam and fabric, pile wires extending rearwardly from the bridge beam through the reed comb and the harness with one portion thereof substantially parallel to the fabric, a second portion thereof inclined to the first said portion and disposed above and substantially parallel to the upper portion of said open warp shed, a third portion substantially parallel to the first said portion and.- lying to the rear of said lay and extending through the harness and anchored at its back end to said back beam, said bridge beam having a rear groove in which the front ends of said pile wires are slidably mounted for relative lateral movement, and a shoulder adjacent the front end of each wire bearing against the rear face of the bridge beam and preventing forward longitudinal movement of said wires.

7. In a loom comprising a breast beam, a back beam substantially parallel thereto and a lay having a reed comb oscillating intermediate said beams, said loom having a woven fabric passing over the breast beam and a divergent open warp shed extending rearwardly from the fabric through said reed comb, a bridge beam spaced above the breast beam and fabric, pile Wires extending rearwardly from the bridge beam through the reed comb witli one portion thereof substantially parallel to the fabric, a second portion thereof inclined to the first said portion and disposed above and substantially parallel to the upper portion of said open.l warp shed, and a third portion substantially parallel to the first said portion and lying to the rear of said lay and anchored at its back end to said back beam, said anchorage comprising a bar parallel to, spaced from, and secured at its opposite ends to said back beam and having its central portion passing through eyes respectively formed in the back ends of said pile Wires allowing relative lateral movement of the wires on said bar.

WM. H. HALL, JR.

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