US3464456A

US3464456A - Front box plate for looms

Info

Publication number: US3464456A
Application number: US616287A
Authority: US
Inventors: John R Brandon
Original assignee: Individual
Current assignee: Individual
Priority date: 1967-02-15
Filing date: 1967-02-15
Publication date: 1969-09-02
Anticipated expiration: 1986-09-02

Description

p 2, 1969 J. R. BRANDON 3,464,456

FRONT BOX PLATE FOR LOOMS Filed Feb. 15, 1967 FIG. I

INVENTOR JOHN R. BRANDON ATTORNEY United States Patent 3,464,456 FRONT BOX PLATE FOR LOOMS John R. Brandon, Box 46, Cramerton, N.C. 28032 Filed Feb. 15, 1967, Ser. No. 616,287 Int. 'Cl. D03d 49/52, 49/54 US. Cl. 139-183 4 Claims ABSTRACT OF THE DISCLOSURE This invention concerns the use of a separable wearresistant nosepiece in the area along the inside surface of the front box plate where the conventional leather lining was subject to deterioration from the impact of the shuttle.

BACKGROUND OF THE INVENTION Means for arresting the flight of the shuttle across the lay of a weaving loom are usually attached to the inside surfaces of the front box plate and binder, and are so arranged to box the rapidly moving shuttle at each side of the loom. This causes considerable abuse to the lining of the inner or entrance level of the front box plate.

Various attempts have been made to reduce the deterioration of the conventional leather lining, such as treating it with a Wax coating as described by the patent to Brooksbank, No. 3,273,604. The Butler Patent No. 3,258,036 discloses the use of a resilient layer between the leather covering and the inside surface of the front box plate.

However, these attempts are still not completely satisfactory in that they require a complete relining of the front box plate when the lining in the entrance area becomes unusuable. In Patent No. 2,494,913, the front box plate is divided into two parts. While this eliminates the need for relining the segment of the plate which receives the least wear, it is objectionable in that additional problems of alinement are presented as well as requiring additional inventory of parts.

SUMMARY The device of my invention overcomes these disadvantages by providing a separate wear-resistant nosepiece or lining at the entrance or inner end of the front box plate. The invention is particularly advantageous in that existing front box plates may be modified to receive the nosepiece or lining. Alternatively, a front box plate equipped with the separable nosepiece or lining of the invention is readily interchanged with existing equipment. High molecular weight polyethylene or any other suitable wear-resistant material has been found to be a satisfactory material from which to make the shuttle checking member in that it is virtually impervious to the wear and abuse suffered by the shuttle impact.

It is, therefore, an object of this invention to provide a separable nosepiece or lining which may be attached to existing front box plates with only slight modifications thereto.

It is another object of this invention to modify existing front box plates by replacing a portion of the leather lining adjacent the entrance to the shuttle box with a wear-resistant strip such as high molecular weight polyethylene.

Still another object of this invention is to provide an effective means for reducing deterioration of the inside lining of the front box plate and to eliminate the need for replacing the entire lining when the area adjacent the entrance to the front box plate becomes unusuable.

Some of the objects of the invention having been 3,464,456 Patented Sept. 2, 1969 stated, other objects will appear as the description proceeds, when taken in conjunction with the accompanying drawings, in which BRIEF DESCRIPTION OF THE DRAWINGS FIGURE 1 is a plan view of a shuttle box showing one embodiment of my invention;

FIGURE 2 is a perspective view of the entrance or inner end portion of the front box plate removed from the shuttle box of FIGURE 1;

FIGURE 3 is a perspective view of the inner end portion of a front box plate showing another form of the invention; and

FIGURE 4 is an exploded perspective view of the form of the invention shown in FIGURE 3.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring now more particularly to the drawings, FIG- URE 1 shows the shuttle box B with a shuttle S entering the entrance or inner end thereof and about to engage the inner end of the front box plate 14. The shuttle box B comprises a rear plate or hinder 10 and a front box plate 14, each of said

plates

10 and 14 having its inner or front end slightly outwardly turned to receive the shuttle S as it returns from the other side of the loom. A leather lining 12 extends from the inner end of the binder 10, along the inside surface to a point 13 whereby the entire length of the fully boxed shuttle will be engaged by said leather lining. The front box plate 14 also has a leather lining 16 suitably adhered to the inside wall thereof and extending from the outer or rear end of said plate along the length of the inside surface to point 17. From point 17 throughout the remainder of the inner surface, the leather is trimmed away according to the invention and replaced by the lining or nosepiece 18, suitably secured at its front end by a screw or rivet 20 to the corresponding end of front box plate 14.

FIGURE 2 more specifically shows the nosepiece 18 which preferably comprises a strip of high molecular weight polyethylene but may also comprise some other suitable wear-resistant material. The plastic strip 18 is generally curved in shape to conform to the wall of front box plate 14 from point 17 to beyond the screw 20. An enlarged portion or bead 22 is formed along the edge of the plastic strip 18 opposite screw 20 and is of such size as to be receivable within a vertical passageway 24 which extends through the front box plate 14. A slot 23 provides communication between passageway 24 and the inner surface of front box plate 14, slot 23 and passageway 24 providing means for receiving and retaining said opposite end of the plastic strip 18.

To replace a worn or damaged shuttle checking device, screw 20 is removed and plastic strip 18 is slid vertically from slot 23 and passageway 24. A new plastic strip is then seated within slot 23 and screw 20 is replaced to secure the new plastic nosepiece.

FIGURES 3 and 4 show an alternate embodiment of the nosepiece or lining, whereby the complete inner portion of the conventional leather-lined metallic front box plate is replaced. According to the invention, the inner end portion of a conventional metallic front box plate is cut away and replaced by a plastic block 32 formed of high molecular weight polyethylene having approximately the same exterior dimensions as the metallic front plate portion replaced. At the shuttle impact point 34 the plastic block 32 is rounded to provide a means for guiding the shuttle S into the shuttle box B.

The plastic block 32 has a longitudinal passageway 36 extending throughout its length and includes a horizontally extending protuberance 40 having a transversely elongated slot 38 formed therein providing a means for mounting the front box plate to the lay end plate. The elongated slot 38 also provides a means for adjusting the front box plate transversely with respect to the shuttle lay.

The plastic block 32 is fixed to the metallic portion 30 of the front box plate by a threaded stud or shaft 42 fixed to and extending axially beyond the metallic portion 30. The shaft 42 may include an enlarged portion, not shown, defined by a shoulder 46 and threadably received Within a bore 50. The smaller portion of stud 42 is received in passageway 36 and is threaded at 44 to secure the plastic block 32. The diameter of stud 42 is slightly larger than the diameter of passageway 36, so that the plastic block 32 is internally threaded as the block 32 is screwed onto stud 42. The threads 44 are cut into the stud 42 in an opposite direction from the threads on the enlarged portion of shaft 42, so that when the plassistant material covering substantially the entire interior tic block 32 is being secured to the metallic portion 50,

stud 42 will not be loosened from the metallic body 30 of the' front box plate. That is, one end of stud 42 is provided with right-hand threads, while the other end has left-hand threads. Also, the exposed portion of stud 42 is preferably of less length than the corresponding dimension of the plastic block so it will not extend beyond passageway 36.

Although the drawings and description are descriptive of the right-hand front box plate, it should be understood that this invention is equally suitable for use on left-hand front box plates.

Although preferred embodiments of the invention have been described using specific terms, such description is for illustrative purposes only, and it is to be understood that changes and variations may be made without'departing from the spirit or scope of the following claims.

I claim:

1. In a s'hutttle box for a loom, said shuttle box comprising a front box plate and binder having out-turned faces at one end thereof to receive a shuttle, said front box plate having a front and rear end and further comprising:

(a) a covering on the inside face of said front box plate suitably secured to the face thereof and extending from the rear end of said front box plate toward the other end of said plate and covering a portion of the entire length thereof;

(b) wear-resistant means suitably attached to said surface of the front box plate at said front end and being suitably secured thereto.

3. The front box plate according to claim 2, wherein said opening in the front box plate comprises a vertical slot in the wall adjacent the interior of the shuttle box, said strip of wear-resistant material having a hole through one end thereof through which a screw is inserted to secure said one end to said front end of the front box plate, and the enlarged portion at the end of said strip nearest said covering comprises an enlarged bead extending the width of said strip, said bead being inserted into said slot to attach said other end of the strip to said front box plate.

4. The front box plate according to claim 2, wherein said wear-resistant means is formed of high molecular weight polyethylene.

References Cited UNITED STATES PATENTS 1,763,456 6/ 1930 Caux. 2,111,962 3/1938 Brown 139--185 2,206,843 7/ 1940 Johnson 139-183 2,596,651 5/1952 Carter 139-183 2,156,885 5/1939 Turner 139-184 2,710,030 6/ 1955 Work 139-187 3,405,741 10/1968 Hampson 139183 FOREIGN PATENTS 567,192 10/1958 Belgium. 772,052 4/ 1957 Great Britain.

r JAMES KEE CHI, Primary Examiner