US1259625A - Loom for weaving cartridge-belts. - Google Patents

Description

E. R. HOLMES.

LOOM FOR WEAVING CARTRIDGE BELTS.

APPUCATION FILED FEB. 2.197- I 1,259,625, 99 Patented Mar. 193, 1918.

3 SHEETS -SHEET I.

E. R. HOLMES.

LOOM FOR WEAVlNG CARTRIDGE BELTS.

APPLlCATlON FILED FEB. 2. I911- 1,259,625. Patented Mar. 19, 1918.

3 SHEETS-SHEET 2.

E. R. HOLMES.

LOOM FOR WEAVING CARTRIDGE BELTS.

APPLICATION HLED FEB. 2. i917. E. 25,62. Patented Mar. 19,1918.

3 SHEETS-SHEET 3.

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ELBRIDGE R. HOLMES, OF WORCESTER, MASSACHUSETTS, ASSIGNOR TO CROMPTON & KNOWLES LOOIVI VOBKS, OF WORCESTER, MASSACHUSETTS, A CORPORATION OF MASSACHUSETTS.

LOOM FOR WEAVING CARTRIDGE-BELTS.

Application filed February 2, 1917'.

T 0 all whom it may concern:

Be it known that I, ELBRIDGE R. HOLMES, a citizen of the United States, residing at Worcester, in the county of Worcester and State of Massachusetts, have invented a new and useful Loom for lVeaving Cartridge Belts, of which the following is a specification. 1

This invention relates to a loom for weaving cartridge belts and particularly to certain improvements in the devices cooperating with the take-up for retaining the fabric in position after it is beaten up by the lay.

For this purpose it is common practice to provide a retaining device intermittently actuated to release the fabric during the beat of the lay and to engage and hold the fabric as the lay moves rearward. Such retaining devices yieldingly engage the fabric under heavy spring tension.

It is an important object of my invention to provide means by which the spring tension may be readily overcome by the operator when desired, and by which the re tainer may be easily lifted and thereafter locked in raisedposition. To the attainment of this,object I provide, in the preferred form of my invention, a footcontrolled pedal pivotally mounted upon a liftin or releasing device, and I also provide means for conveniently locking said pedal in depressed or operative position.

A further feature of my invention relates to certain improvements in the construction of the means forpositioning the retaining device. My invention also relates to certain arrangements and combinations of parts hereinafter described and more particularly pointed out in the appended claims.

A preferred form of my invention is shown in the drawings in which- Figure l is a front-elevation of a portion of a loom, showing a retaining device with my improved releasing and locking mechanism applied thereto;

Fig. 2 is an enlarged side elevation of the releasing and locking mechanism;

F ig. 3 is a side elevation of the parts shown in Fig. 1;

Fig. 4 is a plan device;

Fig. 5 is a side elevation thereof, and i Fig. 6 is a partial sectional side elevation taken along the line 6-6 in Fig. 4.

view of the retaining Specification of Letters Patent.

Patented Trial. 19, 1918.

Serial No. 146,228.

' Referring to Figs. 1 and 3, I have shown a portion of a loom side 10 supporting a breast beam 11 upon which is mounted the retaining device B. This device comprises a bracket 12 (Figs. 4 and 5) secured to the breast beam 11 and provided at its front edge with a convex portion 18 over which the fabric is guided to the take-up roll S. The bracket 12 is also provided with raised side portions 14 and 15 connected by an intermediate portion forming a plate 16 (Fig. 4). An upper plate or table 17 rests upon the plate16 and is mounted to slide between the side portions 14 and 15. The plate 17 is secured at its forward end to a casting 18 having a flat rearward projection 19 underlying the fixed plate 16.

The plate 19 thus retains the plate 17 in position but allows it to slide freely upon the plate under the influence of a coil spring 20 connected at one end to a stud 21 in the fixed plate 16 and at its opposite end to a stud 22 in the projection 19.

ward movement of the plate 17 by the spring 20. Check nuts 26 hold the screws 24 and 25 in adjusted position.

A retainer 80 is also pivotally mounted upon the shaft 523 and is provided at its rearward end with a transverse portion '31 having teeth 32 which are adapted to engage and hold the fabric drawn over the plate 17. The teeth 32 just clear the end of the plate when the retainer is depressed. A stripper 33 is also mounted upon the transverse portion 31 of the retainer and is forced yieldingly downward to free the teeth 32 from the fabric when the retainer is raised.

Lifting rods 34 are attached to each side of the retainer 30 and extend downward to arms 35 forming part of a lever 36 pivotally mounted upon a cross shaft 37 supported in fixed bearings in the loom frame. Heavy coil springs 3838 are connected to the rods 34 and normally force the retainer downward with heavy pressure upon the fabric.

At its rearward end the lever 36 carries a cam roll 39 positioned for engagement by a striker 40 rotatable with a shaft 41 and engaging the roll 39 as the'reed 42 (Fig; 3)

reaches its forward position to beatup the fabric. 7

The construction of the retaining member 30 and the means'for operating said member form no part of my invention, although I claim certain improvements in the supporting structure upon which the retainer 30 is mounted.

It is often desirable to release the member 30 so that the woven fabric may be let back for inspection or repairs during the operation of the loom. It has been heretofore necessary to raise the retainer manually against the tension of the springs 38' and to hold the retainer in raised position by inserting blocks or other temporary devices beneath the retainer. This method of operation requires the exertion of considerable strength 011 the part of the operator to overcome the tension of the heavy springs 38 and also often involves delay in finding suitable blocks to hold the retainer. inconvenient features I provide the releasing and locking mechanism which I will now describe.

Upon a cross shaft 50 mounted in the lower portion of the loom frame I provide a bell crank comprising an arm 51 engaging one of the arms 35 to which the rods 34 are attached, an integral sleeve or hub portion 52 loose upon the shaft 50, and a second arm 53 also integral with the sleeve 52 and extending forwardly, as shown in Fig. 2-. A pedal 54 is pivoted to the 53 and is provided with a depending hook-shaped projection 55 positioned for engagement, when depressed, by a locking member or stop 56 bolted to the loom frame 10.

When it is desired to raise the retainer 30 the operator places his foot upon the pedal 54, thus swinging thebell crank and raising the arm 35 with which the retainer is connected by the link 34. As the pedal moves downward the hook-shaped projection 55 engages" the stop 56 and retains the member 30 in raised position. The outline of the stop or looking member 56' is such that the pedal 5-4 retains substantially the same angular position during its downward travel until the projection 55 passes below the stop. I

With this attachment the retainer 30 is easily lifted from the work and is securely To avoid these held in raised position until intentionally released by the foot of the operator.

Having thus described my invention, it will be evident that changes and modifications can be made therein by those skilled in the art without departing from the spirit and scope thereof as set forth in the claims, andI do not wish to be otherwise limited to the details herein disclosed, but what I claim is:

1. In a loom, a retainer, means to yield ingly depress said retainer upon the fabric, means. to periodically raise said retainer. and additional foot-operated means for raising said retainer and locking the same in raised position, said means comprising a lifting device, a pedal pivoted thereto and having a hook-shaped projection thereon, and a stop adapted to engage said hook and hold said device in position with said retainer raised.

2. In a loom, a retainer, means to yieldingly depress said retainer upon the fabric, a cam actuated lever for periodically raising said retainer, a bell crank engaging said lever, a pedal pivoted to said bell crank and having a depending hook-shaped projection, and a fixed stop positioned for engagement by said projection and adapted to hold said lever and retainer'in raised position.

3. In a loom, a retainer, means to yieldingly depress said retainer upon the fabric, means to periodically raise said retainer, and additional foot-operated means for raising said retainer and locking the same in raised position,. said. means including a pedal movable about one axis to raise said retainer and movable about a second axis into engagement with a stop to hold said retainer in raised position.

4. In a loom, a retaining device com-prising afix'e'd support, a stand slidable on said support, a retainer mounted on said stand and coeperatin-g therewith, means to actuate said retainer, means to slide said stand yieldingly rearward upon said support, and a pair of stops for limiting said rearward movement, said stops being separately adjustable.

In testimony whereof I have hereunto affixed my signature.

ELBRIDGE It. HOLMES.

Copies of this patent may be obtainedfor five ccnts'each, by addressing the Commissioner of Patents,

Washington, D. G.

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