US1563570A - Lay for narrow-ware looms - Google Patents

Description

Dec. 1, 1925 E. R. HOLMES LAY Fbn mnnow was Loous Filed Sept. 1924,

Patented Dec. 1, 1925.

UNITED STATES PATENT OFFICE.

ELBRIDGE R. HOLMES, or WORCESTER, MASSACHUSETTS, Assionon To CROMPTON & KNOWLES LOOM worms, or woRCnsTEn, MASSACHUSETTS. A CORPORATION or MASSACHUSETTS.

LAY FOR NARBOW-WARE LOOMS.

Application filed September 2, 1924. Serial No. 735,262.

To 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 'IVorcester and State of Massachusetts, have invented a new and useful Lay for Narrow-Ware Looms, of which the following is a specification.

This invention relates to improvements in the lays of narrow ware looms and more particularly to means for permitting angular adjustment of the shuttles and reeds of said lays.

My former Patent No. 1,462,549 shows a form of lay wherein the lay beam or batten is angularly adjustable with respect to the lay swords. When changing the shuttles of a narrow ware loom it sometimes happens that their angular position with respect to the shed must be varied so that they will pass more freely through the warp threads. In my aforesaid patent the shuttles are moved about a center intermediate the pivot of the lay and the batten, the result of which is to give the shuttles a horizontal motion either backward or forward whenever they are given a new angular adjustment. This results in a displacement of the shuttle which must be corrected by lengthening or shortening the lay connector to the crank shaft sothat the shuttles will occupy substantially the same position that they were in before the angular adjustment was made.

' It is the general object of my present invention to provide means whereby the shuttles are adjusted angularly about a center which is closely adjacent to or insubstan-v tial alignment with the shuttles themselves shuttles which move in arcuate paths, but

so that their angular adjustment will not be accompanied by an appreciable horizontal displacement. Obviously, such a construction makes it unnecessary to alter the length of the lay connector for each angular adjustment ofthe shuttles.

It is to be understood that narrow ware looms may employ straight shuttles such as are illustrated herein which move in a straight line or they'may employ circular my invention is equally applicable to either type of shuttle. Where more than one bank of shuttles is employed I may conveniently locate the center of rotation between the banks so as to minimize'the horizontal displacement which is incident to angular adjustment. j

A further object of my invention is to provide means for angularly adjusting the reed with respect to the plane of the cloth so that the angle of beat up may be varied as desired.

With these and other objects in view which will appear as the description proceeds, my invention resides in the combination and arrangement of parts hereinafter described and set forth in the claims.

In the accompanying drawings wherein I have shown two forms of my invention,

Fig. l is an end elevation of a portion of a loom incorporating my invention,

Fig. 2 is an enlarged detail end elevation of a lay constructed according to my invention,

Fig. 3 is a front elevation of a portion of the lay showing the method of attaching the batten to the lay sword, and

Fig. 4 shows a modified form of the invention employing a double bank of shuttles.

In the drawings I have illustrated a loom side 10 having a bottom shaft 11 and gear 12 which meshes with gear 13 fastened to the crank shaft 14. The crank connectors 15, one of which is shown in the drawings, are connected at the rear ends to the crank shaft in a well known manner and have their forward ends provided with pins 16 which pass through one of a series of openings '17 formed in the lay sword 18. It is to be understood that there may be as many lay swords 18 as the width of the loom requires and each sword is bolted to a foot 19 which is pivotally mounted on a rocker pin 20. The matter thus far described is well known and forms no part of my present invention.

In carrying out my present invention I angle iron 36 is mounted on shoes 38 the lower face of each of which is arcuate as indicated at There will ordinarily be as many shoes 38 as there are lay swords and in order to hold the shoes fixed with respect to the arms 31' I provide bolts which pass thr oughthe lower arm 3'? of the angle'iron, the shoe 38, and a slot 4-1 formed in the arm 31. The slot 41 lies parallel to the plane in which the lay sword moves to permit adjustment of the batten forwardly and rearwardly.

An important feature of my invention is the manner in which the arcuate surfaces 32 and 39 are curved. shaped as to permit angular adjustment of the batten around a center substantially in alignment with the shuttles. As shown in Fig. 2 the surfaces 32 and 39 are concave and convex, respectively, and the under face 42 of each arm 31 is preferably concentric with the surface 32 so that as adjustments are made bolt 40 may remain at right angles to portion 37 of the angle iron.

lVhen it is desired to adjust the angular position ofthe shuttle S from the position shown in Fig. 2 the bolts 40 will be released and the shoe 38 moved over the boss 31 in the proper direct-ion after which the bolts will again betightened. Inasmuch as the batten moves about a center which passes through the shuttle the latter will have practically no horizontal motion with respect to the lay swords and it will therefore be unnecessary to vary the driving connection for the lay.

In the modified form of my invention shown in Fig. 4 the brackets 50 are provided to which are secured the lower blocks 5i and the upper blocks 52 which guide the shuttles S and S respectively. The shoe 53 and the arm 54 are provided with arcuate surfaces 55 and 56, respectively, which are struck about a center preferably located halfway between the shuttles S and S \Vhen an adjustment is made of the structure shown in Fig. it the shuttles will undergo such a slight horizontal motion with respect to the lay swordsas to render adjustment of the driving connections unnecessary.

, A reed (30 may be provided in either form of the invention and is adjustable with respect to the lay swords by angular movement of the batten as hereinbefore set forth.

From the foregoing it will be seen that I have provided a simple lay construction by which the angle of the shuttle with respect to the fabric being woven can be changed in such a way as to render unnecessary any compensating adjustment of the driving connections of the lay.

Having thus described my invention it will be apparent that changes and modifications may be made therein by those skilled in the art withoutdeparting from the spirit and They are preferably so scope of the invention, and I do not wish to be limited to the details herein disclosed, but what I claim is:

1. In a loom, a batten structure, shuttles thereon, supporting means for said batten,

batten, pivots for said supportingmeans,

and co-acting arcuate faces formed on the batten and supporting means, said faces being concentric about an axis substantially in alignment with the shuttles.

3.-In a loom, a batten structure, shuttles movable thereon, supporting means for the batten, a pivotal mounting for the supporting means, and arcuate co-acting faces formed on the batten and supporting means, said faces being between the pivotal mounting for the supporting means and the axis of said arcuate surfaces.

4. In a loom, a batten structure, shuttles movable thereon, supporting means for the batten, apivotal mounting for the supporting means, and means to move the batten angularly with respect to the supporting means about a center substantially coincident with the shuttles.

5. In a loom, a shuttle carrying batten structure, supporting means for said structure, and curved co-acting surfaces formed on the structure and supporting means, the surfaces on the supporting means being concave with respect to the batten structure to cause the shuttles to have an angular motion with respect to the supporting means about an axis above the curved surfaces.

6. In a loom, a batten structure, shuttles movable thereon, supporting means for the batten, a pivotal mounting for the support ing means, a crank shaft, driving c0nnectionsbetween the crank shaft and the supporting means, and arcuate faces formed on the batten structure and supporting means held together in adjusted position, the center of the arcs being substantially in alignment with the shuttles.

7. In a loom, a batten structure, shuttles movable thereon, supporting means for the batten, a pivotal mounting for the supporting means, and means to adjust the angular tions from the crank shaft to the supporting means, and mleans to adjust the angular position of the batten with respect to the supporting means about a center substantially coincident with the shuttles to permit angular adjustment of the shuttles with respect to the supporting means without varying the longitudinal position of the shuttles with respect to the crank shaft and driving connections.

8. In a loom, a batten structure, shuttles thereon, supporting means for the batten I structure, a pivotal connection for the supporting means, a crank shaft, driving connections between the crank shaft and the supporting means and curved co-acting surfaces formed on the batten structure and the supporting means, the curved surface on the supporting means being convex with re- 10 spect to the pivotal mounting for the supporting means and the curved surface on the batten structure being convex with respect to the shuttles to permit relative angular adjustment of the shuttles without substantially changing the horizontal position of the same with respect to the crank shaft and the driving connections.

In testimony whereof I have hereunto afiixed my signature.

ELBRIDGE R. HOLMES.

Images