US572140A

US572140A - Chusetts

Info

Publication number: US572140A
Authority: US
Publication date: 1896-12-01
Anticipated expiration: 1913-12-01

Description

K (No Model.)

J. F. & C. G. WARREN.

PICKER STAFF' STRAP POR LOOMSvl v No. 572,140. Patented Deo'. l, 1896.

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PicKER-STAFF STRAP FoR Looms.

SPECIFICATION forming part of Letters Patent No. 572,140, dated December 1, 1896.

I Application lecl March 23, 1895. Serial No. 542,897. (No inodel.)

To (all, whom it may concern:

Be it known that we, JOHN F. VARREN and CHARLES G. XVARREN, of the city and county of Worcester and State of Massachusetts, have invented certain new and useful Improvements in Lug-Straps for Looms; and we do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, forminga part of this specification, in which- Figure l represents so much of a pickerstaff, its strap, and connections as is necessary to illustrate the application of our invention to practice. Fig. 2 is a full-size central longitudinal section of our said improved lug-strap. Fig. 3 is a transverse section thereof, taken at the point indicated by line a', Fig. 2; and Fig. et is a similar view showing a slight modification. Fig. 5 is a partial sectional view of our improved strap, taken on line b, Fig. 2, cutting through. the fold at the center of the bend of the strap.

The object of our invention is to produce a lug-strap for looms which Shall embody strength, durability, and elasticity in use, and also minor advantages hereinafter specified; and our inventlon consists in a lug-strap y preferably made of a single piece of leather of suicient size to produce the strap, said piece being folded upon itself and then fastened near the folded edges and bent into the usual loop form of a lug-strap, as will be hereinafter more fully set forth.

In order that others may'better understand the nature and purpose of our said invention, we will now proceed to describe it more in detail.

In the drawings,A represents the pickerstalf of a loom, which is pivoted at its lower end to a stationary bearing B, forming in practice a part of the loom-frame.

C represents part of the lug-strap-operating bar, to the outer end of which is attached our improved lug-strap D, through the loop of which the picker-staff passes, as shown in Fig. l.

Our completed lug-strap is preferably made from a single piece of leather about square in shape, said piece being folded upon itself to produce several thicknesses, one lying against the other, with folds at the edgesof the completed strap, as is shown in the drawings.

Our improved strap is preferably so folded i' that one edge of the piece of leather from which the strap is made comes upon the outside of the strap at what is to be the top theredescribed, with the wide fold at the bottomof the completed strap and the narrower fold at the top thereof lyingagainst the outer edge of the leather, it results that when the strap is bent into its proper shape for use the top ofV the loop formed by the bend in the strap flares outwardly slightly upwardly, so that what may be termed the end of the completed loop, against which the picker-staff strikes, is somewhat inclined relative to a vertical plane, as shown in Figs. l and-5, and thus conforms to the radial striking position of the picker-staff at the time of the impact of the blow of the latter. Moreover, in forming our completed lug-strap by a single piece of leather, folded as described, lit will be observed that the wearing portions of the said strap, or the parts thereof subjected to the blow of the picker-stalf, are all upon Wh at is the iinished surface of the piece of leather before the latter is folded, which surface has the greatest capability for resisting wear and consequently the greatest endurance in use.

Our strap, after having been folded as above described, has its several plies firmly secured together, this being preferably done by two n with a narrower fold at the upper edge of said completed strap lying against the other edge of said piece of leather, the plies of the said folded piece of leather being secured together and then bent into thev usual loop form of a lug-strap, substantially as set forth.

2. Alug-strap for looms consisting of apiece of leather lined with cloth and folded upon itself to form several plies, with a wide fold at the lower edge of the completed strap and having one edge of the piece of leather lying in said fold, and with a narrower fold at the upper edge' of said completed strap lying against the other edge of said piece of leather, the plies of the said folded piece of leather being secured together and then bent into the usual loop form of a lug-strap, substantially as set forth.

JOHN F. NVARREN. CHARLES G. WARREN. XVitnesses:

ARTHUR C. FRISBIE, WILLIAM H. LEWIS.