US2475943A

US2475943A - Loom binder

Info

Publication number: US2475943A
Application number: US786565A
Authority: US
Inventors: Albert E Chouinard
Original assignee: Graton and Knight Co
Current assignee: Graton and Knight Co
Priority date: 1947-11-18
Filing date: 1947-11-18
Publication date: 1949-07-12
Anticipated expiration: 1966-07-12

Description

July 12, 1949. CHQUINARD 2,475,943

LOOM BINDER Filed Nov. 18, 1947 V Q U ,JNVENTOR.

14/6677 5 cau/hdrd J 841% Q Ma). ATTORNEY Patented July 12,1949

UNITED STATES PATENT OFFICE to Graton & Knight Company,

Worcester,

Mass, a corporation of Massachusetts Application November 18, 1947, Serial No. 786,565

9 Claims. 1

This invention relates to a binder for use in the shuttle box of a loom.

The invention has for an object to provide a novel and improved binder for use in the shuttle box of a loom, which may be economically manufactured and is adapted to withstand the impact of the point of the shuttle for far longer periods of time than other binders heretofore proposed and of which I am aware, and which is capable of exerting a high degree of friction against the lateral surface of the shuttle as the latter continues to move into the shuttle box over the binder following its first impact therewith.

With this general object in View, and such others as may hereinafter appear, the invention consists in the binder for use in the shuttle box of a loom hereinafter described and particularly defined in the claims at the end of this specification.

In the drawing illustrating the preferred embodiments of the invention, Fig. 1 is a vertical elevation illustrating a cushionless binder embodying the invention; and Fig. 2 is a similar view illustrating a binder embodying the invention which embodies a cushion member.

As is well known, during the operation of a loom the shuttle travels at a relatively high speed and at near the end of its flight the shuttle is arranged to engage a binder associated with the shuttle box and whose function is to receive the impact of the shuttle and by friction to reduce its speed as it enters the shuttle box. It has heretofore been customary to utilize a binder leather or leather strap to provide a surface against which the shuttle impinges and in frictional contact with which it is caused to pass in entering the shuttle box. The binder leathers have been mounted upon the inner lateral surface of the usual movable member of the binder. In practice the binder is usually pivoted at its rear end and yieldingly urged toward the rear wall of the shuttle box. As the shuttle approaches the shuttle box it first impinges upon the front end of the binder swinging the same away from the rear wall of the shuttle box. Thereafter as the shuttle moves into the box, the leather surface upon the binder frictionally engages the lateral surface of the shuttle, checking the speed of the shuttle and permitting it to enter the shuttle box to be brought to rest by the picker stick check strap. Because of the high speed at which the shuttle is travelling when it en ages and passes in contact with the binder leather the latter is subjected to hard wear the leather requiring frequent replacement.

The present invention contemplates a novel binder provided with a novel leather facing for resisting the impact of the shuttlefor long periods of time. The leatherfacing comprisesa two part elongated strap which is attached to the movable binder member .to most .efilciently resistthe initial impact of the shuttle and further .to offer most effective frictional resistance to the :passage of the shuttle thereby. The front part of :the binder strap may and preferably will comprise a hard well-filled wear-resisting long tanned leather. Such a leather may comprise well-filled vegetable tanned leather, that is a leather which is tanned for relatively long periods of time and is wellfilled with tanning material, presenting a dense impact resisting surface. The rear portion of the binder leather may and preferably will comprise a leather of a character which presents a relatively high frictional surface'having a relatively high degree of heat resistance and which may and preferably will be secured to the front portion by a rearwardly extended tapered joint or lap. The function of the front component of the binder leather is to resist the impact of the shuttle as it engages the movable member of the binder, and the function of the rear component of the composite strap is to engage the lateral surface of the shuttle and to offer increased and relatively high frictional resistance to the travel of the shuttle in contact therewith. For most-purposes any well-filled combination tanned leather of the belt type of finish or curry may be used.

Referring to the drawing, in Fig. 1 I have illustrated a. cushionless binder leather or strap l0; and in Fig. 2 I have illustrated a cushion leather or strap 92, both being adaptedto ,be secured to the inner face I3 .of themovable member or block 14 of any usual or preferred form of binder, the latter being usually pivotally secured to thevshuttle box as by a bolt It, or otherwise. In accordance with the present invention the binder straps or leathers Ill, 12 are each made in two parts'and each of two different types of leather. The forward parts 2|] of each of the binder straps or leathers It, 12 are mounted upon the binder blocks M in a position to receive the first impact of the shuttle as the latter is travelling into the shuttle box, and each forward part 20 comprises an impact resisting type of leather, whereas each of the second portions 22 of the binder straps or leathers Ill, l2 comprises a softer leather of a type capable of exerting relatively high frictional resistance against the lateral surface of the shuttle as the latter moves past and in'engagement with the rear portions 22 of the straps. The two portions 20, 22 of each strap may and preferably will be adhesively or otherwise secured together to form a unit presenting a substantially smooth surface against which the shuttle contacts as it moves into the shuttle box. In the embodiments of the invention illustrated in Figs. 1 and 2, a rearwardly extending cemented lap joint 25 is provided which connects together the two portions 20, 22 of each strap into a single unitary structure and by extending the lap rearwardly minimum tendency exists for injuring the lap joint during operation of the loom because the shuttle is being engaged by the lap joint portion of the surface of the strap only when the shuttle is travelling into the box or in other words in the direction of extension of the lap.

In practice I have found that any hard wearresisting long tanned and preferably vegetable tanned leather possesses the desired characteristics which render it capable of withstanding for long periods of time the repeated hard impact blows of the shuttle as the latter engages the forward portion 2!! of the strap. Referring to Figs. 1 and 2 it will be observed that the forward portion of each binder block M is provided with a tapering surface 28 against which the point of the shuttle strikes, so that as the shuttle continues its movement, the movable block is forced outwardly by the shuttle. This subjects the leather facing to extreme wear which the forward portion 20 of the present strap is able to successfully resist for relatively long periods of time compared to prior straps,

because of its dense, hard, wear-resisting ehartanned leather having a belt type of finish or curry. Such a leather possesses high heat resistance which will enable it to withstand the frictional heat developed during the operation of the loom.

In Fig. 2 I have illustrated a binder strap or leather of a cushioned type, wherein a loosely tanned compressible leather is cemented or otherwise secured as a backing 30 for the combination strap of Fig. 1. The cushion serves to absorb some of the impact of the shuttle against the portion 28 of the strap and assists in extending the wearing life thereof. This type of strap finds particular use on moderate or low speed looms. The cushionless binder strap or leather shown in Fig. 1, while suitable for use on all types of looms, is particularly adapted for use with advantage on high speed looms.

While the preferred embodiments of the invention have been herein illustrated and described, it will be understood that the invention may be embodied in other forms within the scope of the following claims.

Having thus described the invention, what is claimed is:

1. A binder strap for use as a facing for the movable member of a shuttle box binder comprising an elongated strap composed of two sec tions having their adjacent ends united together to present a smooth surface adapted for contact with the shuttle, one section comprising a hard impact resisting leather and the remaining section comprising a softer leather capable of exerting high frictional resistance to the passage of the shuttle thereover.

2. A binder strap for use as a facing for the movable member of a shuttle box binder comprising an elongated strap composed of two sections having their adjacent ends united together to present a smooth surface adapted for contact with the shuttle, one section comprising a hard wear resisting well-filled vegetable tanned leather having a dense impact resisting surface, and the second section comprising a well-filled combination tanned leather having a belt type finish.

3. A binder strap for use as a facing for the movable member of a shuttle box binder comprising an elongated strap composed of two sections having their adjacent ends united together to present a smooth surface adapted for contact with the shuttle, one section comprising a hard impact resisting leather and the remaining section comprising a softer leather capable of exerting high frictional resistance to the passage of the shuttle thereover, said sections being connected together by a lap joint extending toward the shuttle contacting surface of the frictional section of the strap.

4. A binder strap for use as a facing for the movable member of a shuttle box binder comprising an elongated strap composed of two sections having their adjacent ends united together to present a smooth surface adapted for contact with the shuttle, one section comprising a hard wear resisting well-filled vegetable tanned leather having a dense impact resisting surface, and the second section comprising a Well-filled combination tanned leather having a belt type finish, said sections being connected together by a lap joint inclined toward the shuttle contacting surface of the frictional section of the strap.

5. In a loom, a shuttle box provided with a movable binder block and a leather facing therefor secured to the surface of the block in a position to contact the shuttle as it enters the box. said leather facing comprising an elongated strap composed of two sections having their adjacent ends united together to present a smooth surface adapted for contact with the shuttle, one section comprising a hard impact resisting leather and the remaining section comprising a softer leather capable of exerting high frictional resistance to the passage of the shuttle thereover, said impact resisting section being disposed to be first engaged by the shuttle as it enters the box.

6. In a loom, a shuttle box provided with a movable binder block and a leather facing therefor secured to the surface of the block in a position to contact the shuttle as it enters the box, said leather facing comprising an elongated strap composed of two sections having their adjacent ends united together to present a smooth surface adapted for contact with the shuttle, one section comprising a hard wear-resisting wellfilled vegetable tanned leather having a dense impact resisting surface, and the second section comprising a well-filled combination tanned leather having a belt type finish, said impact resisting section being disposed to be first engaged by the shuttle as it enters the box.

'7. A binder strap for use as a facing for the movable member of a shuttle box binder comprising an elongated strap composed of two sections having their adjacent ends united together to present a smooth surface adapted for contact with the shuttle, one section comprising a hard impact resisting leather and the remaining section comprising a softer leather capable of exerting high frictional resistance to the passage of the shuttle thereover, and a cushion backing member secured to the rear surfaces of the component sections of said elongated strap to form a unit therewith.

8. A binder strap for use as a facing for the movable member of a shuttle box binder comprising an elongated strap composed of two sections having their adjacent ends united together to present a smooth surface adapted for contact with the shuttle, one section comprising a hard impact resisting leather and the remaining section comprising a softer leather capable of exerting high frictional resistance to the passage of the shuttle thereover, and a loosely tanned compressible leather backing member secured to the rear surfaces of the component sections of said elongated strap to form a unit therewith.

9. In a loom, a shuttle box provided with a movable binder block and a leather facing therefor secured to the surface of the block in a position to contact the shuttle as it enters the box, said leather facing comprising an elongated strap composed of two sections having their ad- REFERENCES CITED The following referenices are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 820,589 Mills May 15, 1906 2,120,144 Emmons June '7, 1938 2,399,851 Brown May '7, 1946