US2754852A - Check for loom shuttle - Google Patents

Description

July 17, 1956 c. R. MOORE 2,754,852

CHECK FOR LOOM SHUTTLE FELETE.

Filed April 15, 1953 INVENTOR. CAflflf/Vf A. Mam/5 United States Patent CHECK FOR LOOM SHUTTLE 'ClarenceR. Moore, New York N. Y. Application April 15, 1953, Serial No. 348,944 2 Claims. (Cl. 139-166) This invention relates to checks or hunters for worsted, woolen, cotton, rayon and narrow fabric looms.

As is well known, in a loom, the picking motion actuates a picker stick which at its upper end is connected to a picker. The picker is slidably supported on a rod parallel to the shuttle box and when actuated serves in turn to shoot the shuttle across the loom. In order to stop the shuttle following its entry into the shuttle box, a check or bunter is employed, and it is the improved construction of such check or bunter that this invention relates.

With the checks or bunters now in use, when the check or bunter becomes badly compressed and Worn damage results to the picker or picker stick or other parts of the loom. Furthermore, with some of the checks now in use, when one side of the check becomes Worn, it must be discarded. Other checks now on the market are complicated and when subjected to the severe impact to which the device is subjected tend to become loose and noisy and furthermore are diliicult to remove for replacement and repair, need constant repair resulting in loss of service of the loom, and cause kinks in the yarn with resulting damage to the fabric.

A principal object of the present invention is to provide a check for looms which overcomes the above disadvantages.

Another object of the invention is to provide a check for a loom which will cushion and gradually absorb the shock resulting from impact of the shuttle, without rebounding, so that the resulting strains will diminish gradually and so that no damage to the picker contact area or back of the picker will occur thereby providing longer life for the picker and picker stick.

A further object of the invention is to provide a check for looms which is readily mounted in and demounted from its box and which is reversible so that opposed sides thereof may be used before the check is discarded.

Still another object is to provide a check for a loom which not only serves to stop the rearward movement of the picker, but in addition also positions the shuttle properly within the shuttle box cell so that the bobbins can be transferred into the shuttle correctly, and the yarn held taut.

A specific object of the invention is to provide a check for a loom composed of compressible resilient material between strips of leather shaped so as to drop readily into operative position into its box and so as to be removed just as readily therefrom.

It is also proposed according to a modification of the invention to provide a check for a loom composed of compressible resilient material impregnated with a plastic liquid composition.

It is a further object of the invention to construct a check for a loom which is simple and durable and which can be manufactured and sold at a reasonable cost.

Still another object of the invention is to provide a check for a loom which is characterized by fewness of parts and with no parts which are likely to get out of order.

For a further comprehension of the invention and of 2 the objects and advantages thereof,sreference will be"had to the following description and accompanying drawing and to the appended claims in which the various novel features of the invention are more particularly set forth.

In the accompanying drawing-forming a material part of this disclosure:

Fig. Us a fragmentary perspective 'view of the lay end assembly of a loom showing 'ach'eck embodying'one form of my. invention in. operative position.

Fig. :2..is an enlarged sectional view of the line 22 of Fig. 1.

Fig. 3 is an enlarged perspective view of the improved check.

Fig. 4 is an enlarged spread perspective view of the improved check.

Fig. 5 is an enlarged perspective view of a check embodying a modified form of the invention.

Referring in detail to the drawing, the check 10 made in accordance with the present invention is desirably designed so as to be readily removable from the top end of the box 11 in which it is mounted, with a minimum loss of time and with a minimum amount of labor. Accordingly, the check as shown in detail in Fig. 3 is rectangular in shape and may be of any desired size so as to slidably fit in the opening 13 in the standard size box 11. Of course, the check may be square or any other desirable shape.

The check shown includes a pair of juxtaposed rectangular solid slabs 14 formed of compressible resilient material. A substance found highly efiicient in use for this purpose is polyvinyl chloride. The faces of the slabs are secured together by an adhesive, such as cement 15, but any other suitable adhesive may be used. The slabs are positioned between two strips 16 of stiff leather, the leather strips being fastened to the outer faces of the slabs by a suitable adhesive, such as cement 17. Of course, instead of making the check of two slabs 14, a single slab might be inserted between the leather strips.

When the check 10 is in operative position, such as shown in Fig. l, the end strip 16 of leather facing the picker 18 will receive directly the impact transmitted from the shuttle 19 through the picker 18. Owing to the shape of the check and the inherent characteristics of the material forming the slabs 14, the shock of the impact will be absorbed gradually, most of the strains being carried to the center of the check and diminishing gradually toward both ends. This results in a gradual flexing of the slabs in addition to such compression thereof as may occur. The slabs gradually return to normal condition and the tendency to throw the shuttle back is substantially eliminated. No rebounding of the shuttle occurs. Furthermore, the shuttle is allowed to be stopped at a very definite point each time that it hits.

In the modification of the invention shown in Fig. 5, the check 10' has been dipped in a bath of plastic liquid material forming a plastic coating 20 all around it and impregnating the slabs 14 and leather strips 16. However, if desired, only the slabs may be impregnated and the leather strips 16 left uncoated. A substance found satisfactory for this purpose is an organsol, such as vinyl liquid, but any other suitable substance may be used. The coating of plastic increases the durability and life of the check.

While I have illustrated and described the preferred embodiments of my invention, it is to be understood that I do not limit myself to the precise constructions herein disclosed and the right is reserved to all changes and modifications coming within the scope of the invention as defined in the appended claims.

I claim:

1. In combination with the shuttle box of a loom having an open top and front, a shuttle check including a rectaken on the plan'e tangular block detachably mounted through the open top of the box and being exposed through the open front of the box, said block being composed of thick slabs of compressible polyvinyl chloride material rectangular in shape cemented together and strips of leather cemented to the outer faces of the slabs whereby the block is reversible in use in the shuttle box.

2. A shuttle check for use with the shuttle box of a loom comprising a block of thick slabs of compressible resilient material, rectangular in shape, secured together, and strips of leather of the same shape cemented to the outer faces of the slabs whereby the block is reversible in use in the box, said slabs and strips of leather being impregnated and coated with a plastic liquid substance.

References Cited in the file of this patent UNITED STATES PATENTS Cook July 8, 1919 Cady Sept. 10, 1929 Blyler Sept. 16, 1947 Lesesne Feb. 10, 1948 Dodenhoff Dec. 5, 1950 Wakefield Dec. 12, 1950 FOREIGN PATENTS Great Britain Mar. 22, 1950

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