US3559696A

US3559696A - Shuttle checking device

Info

Publication number: US3559696A
Application number: US867658A
Authority: US
Inventors: Coy L Huffman Jr; James Earl Huffman
Original assignee: Individual
Current assignee: Individual
Priority date: 1969-10-20
Filing date: 1969-10-20
Publication date: 1971-02-02
Anticipated expiration: 1988-02-02

Abstract

A shuttle binder has a thin flat member and an elongated element constructed from a single unitary wooden blank, said blank having been compressed and densified by the application of heat and pressure along opposite sides thereof across said flat member so that said flat member is capable of dissipating heat and withstanding flexing and impact from the shuttle during weaving.

Description

Q United States Patent 1 1 3,559,696

[72] Inventors Coy L. Hufiman,Jr. [56] ReferencesCited ggzoBsrookside Way, Greenville, S.C. UNITED STATES PATENTS 856,310 6/1907 Stone 139 185 s 'ggg'g g 'zgf 880,602 3/1908 Tiich 139/185 21] A No 867658 3,225,793 12/1965 Huffman,Jr.etal. 139 185 3,227,188 1/1966 Bakeretal 139 185 [22] Filed Oct. 20, 1969 [45] Patented Feb. 2, I971 [54] SHUTTLE CHECKING DEVICE 2 Claims, 3 Drawing Figs.

[52] US. Cl 139/185 D03d 49/54 l39/l 83- l 87, 157

Primary Examiner-James Kee Chi AttorneyBailey & Dority ABSTRACT: A shuttle binder has a thin flat member and an elongated element constructed from a single unitary wooden blank, said blank having been compressed and densitied by the application of heat and pressure along opposite sides thereof across said flat member so that said flat member is capable of dissipating heat and withstanding flexing and impact from the shuttle dun'ng weaving.

PATENTED FEB 2 197i fli IL v3.

, w 9 F Q V INVENTORS COY L. HUFFMAN, JR, 2, JAMES EA RL. FFMAN ATTORNEY SI-IU'ITLE CHECKING DEVICE This invention relates to a shuttle checking device and more particularly to an improved unitary wooden shuttle binder capable of operating without repair on high speed looms over extended periods of time.

This is an improvement upon the invention of U5. Pat. No. 3,225,793.

Shuttle binders covered with leather have long been used on looms. With the advent of high speed looms many attempts have been made to solve the problem of excessive wear on the binder. Attempts to solve this problem have included the use of cushioning material as well as attempts to leave an air space between portions of the binder engaged initially by the shuttle and the remainder of the binder wood. It has been found that excessive heat, generated by the friction between the shuttle and the leather when the shuttle contacts the leather repeatedly at close intervals and at high speed, accounts for a greater portion of the wear. While efforts have been made to I dissipate such heat through the use of air spaces, none have been successful because the element receiving the shuttle and its connection to the shuttle wood are not capable of withstanding successive impacts by the shuttle in practical operation.

The device of the above patent functions well except for difficulties with the means fastening the flat member to the elongated elements of the shuttle. Such was difficult to fabricate and did not wear well. This invention contemplates the use of a unitary wooden binder constructed from a densified blank wherein the air space is formed between an elongated element and a thin flat member, both formed from the single blank.

Accordingly, it is an important object of the present invention to avoid any problem in fastening the relatively thin flat member to the elongated or body element of the binder while effectively reducing heat generated by shuttle contact and resulting wear to the binder.

It is an important object of this invention to provide an improved shuttle binder capable of minimizing the heat generated by many repeated engagements with the shuttle during weaving.

Another important object of the invention is to provide a means for reducing wear on a shuttle binder capable of withstanding successive impacts by the shuttle during weaving without excessive wear or damage.

Another object of the invention is to provide an air space type means for dissipating heat generated by shuttle contact with the binder to thus minimize wear on the binder leather so that the resulting binder is capable of operating over much longer periods without alteration, thus prolonging the life of the binder leather and reducing labor and machine downtime.

The construction designed to carry out the invention will be hereinafter described, together with other features thereof.

The invention will be more readily understood from a reading of the following specification and by reference to the accompanying drawing forming a part thereof, wherein an example of the invention is shown and wherein:

FIG. 1 is a top plan view illustrating a loom shuttle constructed in accordance with the present invention;

FIG. 2 is a top plan view of the binder mounted in a shuttle box receiving a shuttle during weaving; and

FIG. 3 is an enlarged transverse sectional elevation taken on the line 3-3 in FIG. I.

The drawing illustrates a loom shuttle box having shuttle receiving members. An elongated longitudinally disposed wooden binder element A has a curved portion adjacent the shuttle receiving end thereof. A relatively thin flat wooden member B substantially conforms to the shuttle receiving surface of the wooden element. It is important that member 8 be densified or otherwise fortified in comparison to natural wood to the extent that good flexing and impact resisting qualities are provided to withstand repeated impacts by the shuttle. Means C are provided for fastening the wooden member B to the wooden element A forwardly of the portion receiving the shuttle on initial impact, and fastening the wooden member to the wooden element adjacent the rear thereof in substantially overlying relation thereof. An air space D is defined between the wooden element and the wooden member. The usual strip of leather and the like, substantially covers the shuttle engaging surface of said wooden member. The flat member B and the elongated element A are constructed from a single unitary wooden blank, said blank having been compressed and densified by the application of heat and pressure along opposite sides thereof across said flat members as illustrated at E in FIG. 3.

The loom shuttle box includes a box front 10 fastened by the usual bolts 11 to the lay end plate I2 of a loom. A picker stick is designated at I3 and rocks back and forth within the usual slot 14. The shuttle 15 is received between the binder, the elongated element or body of which is designated at A, and the box front I0 prior to its reception by the picker I6, which is carried by the picker stick 13. The binder is mounted upon a pin I7 carried by the lay end plate, and a fiber bearing I8 is provided to protect the binder wood from excessive wear. A metal strip 19 protects the butt of the binder wood and is fastened thereon as by a rivet [9a. A leaf spring 20 is fastened as by screws 21 to the lay end plate, and serves to resiliently bias the free end of the binder inwardly so as to exert a checking shuttle box. A protective strip 22 engages an abutment (not shown) for limiting the outward movement of the binder responsive to the impact of the shuttle 15 when it is received. I

A flat formed wooden member B is fastened at both ends thereof on the inner shuttle receiving face of the shuttle. The member B is formed and fortified by compressing and densifying the single blank by the application of heat and pressure along opposite sides thereof, across the flat member. The slot D is then routed out conforming to the general configuration of the binder as illustrated in the drawing. It is desirable that the member B be constructed of flat stock uniform cross section, capable of dissipating heat and withstanding successive impacts by the shuttle during weaving. For example, such treatment of wood as is described in connection with portions of a picker stick in United States Letters Pat. No. 2,488,301, issued Nov. I5, 1949 to C. B. Lundstrom, would be satisfactory. It has been found that densified or otherwise treated, formed wood makes possible the provision of the air space through its ability to withstand the constant flexing resulting from many successive impacts by the shuttle. For example, if a strip of most known metals were used in lieu of the fiat densified wooden member, the metal would crystallize at its points of maximum flexure in the area of contact by the shuttle.

The means C for fastening the wooden member B to the wooden element A are provided by the integral wooden connection resulting from the routing out of the slot from the unitary blank.

Thus, the means C fastening the flat member adjacent the forward end and adjacent the rear ends thereof consist essentially of the integrated continuous fibers and lignin of said unitary wooden blank, said flat member having been formed by routing out the air space in the blank between the elongated element and the flat member.

It will be noted that the binder has a flat surface 28 in substantial alignment with the path of the shuttle when in boxed position. Thus, the curve 29, in the area of initial contact by the shuttle is not so pronounced as is normally the case with other shuttle binders. This results in minimum lateral displacement of the shuttle wood during boxing and a maximum area of engagement by the binder leather 30 with the shuttle rearwardly of the curve. This is important because when conventional binders are displaced on engagement by the shuttle on initial impact and return no checking or shuttle receiving or engaging surface is available except that adjacent the curve. The binder leather 30 is suitably fastened over the member B as by suitable adhesive (not shown). By reference to FIG. 2, it will be noted that the air space D tends to close upon engagement by the shuttle and that such closing continues as the shuttle progresses into the box to be received by the picker I6.

The portion of the binder wood rearwardly of the crest of the curve 29 is preferably of generally uniform cross section as described above and illustrated in the drawing.

While a preferred embodiment of the invention has 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.

We claim:

I. For use in a loom shuttle box. a shuttle binder compris ing. an elongated longitudinally disposed element ha ing a curved portion adjacent a shuttle receiving end thereof for receiving the shuttle on initial impact. and an inner substantially flat surface extending rearwardly therefrom substantially in alignment with the elongated element so that the adjacent portion of the elongated element has a substantially uniform cross section. a relatively thin flat formed member substantially conforming to the inner surface of the elongated element. said thin flat member and said elongated element being constructed from a single unitary wooden blank said blank having been compressed and densiflcd by the application of heat and pressure along opposite sides thereof across said flat member so that said flat member is capableofdissipating hea and withstanding flexing and impact from the shuttle durin; weaving. means fastening the thin flat member to the elon gated element adjacent the forward end of the elongated ele ment. means fastening the thin flat member to the elongatet element adjacent the rear end thereof. each of said mean:

fastening the thin flat member resisting thrust longitudinally o the thin flat member caused by engagement of the binder b3 the Shuttle. said thin l'lat member being in substantially overly ing relationship to the elongated element. an air spact between the elongated element and the thin flat member ex tending between themeans fastening the thin flat member ad jacent the ends thereof and a shuttle engaging leatherlike stri; substantially covering the thin flat member.

2. The structure set forth in claim I. wherein said mean: fastening the flat member adjacent the forward end and ad jacent the rear ends thereof consist essentially of the in tegrated continuous fibers and lignin of said unitary wooder blank. said flat member having been formed by routing out thiair space in the blank between the elongated element and tht flat member.

Claims

1. For use in a loom shuttle box, a shuttle binder comprising, an elongated longitudinally disposed element having a curved portion adjacent a shuttle receiving end thereof for receiving the shuttle on initial impact, and an inner substantially flat surface extending rearwardly therefrom substantially in alignment with the elongated element so that the adjacent portion of the elongated element has a substantially uniform cross section, a relatively thin flat formed member substantially conforming to the inner surface of the elongated element, said thin flat member and said elongated element being constructed from a single unitary wooden blank, said blank having been compressed and densified by the application of heat and pressure along opposite sides thereof across said flat member so that said flat member is capable of dissipating heat and withstanding flexing and impact from the shuttle during weaving, means fastening the thin flat member to the elongated element adjacent the forward end of the elongated element, means fastening the thin flat member to the elongated element adjacent the rear end thereof, each of said means fastening the thin flat member resisting thrust longitudinally of the thin flat member caused by engagement of the binder by the shuttle, said thin flat member being in substantially overlying relationship to the elongated element, an air space between the elongated element and the thin flat member extending between the means fastening the thin flat member adjacent the ends thereof and a shuttle engaging leatherlike strip substantially covering the thin flat member.

2. The structure set forth in claim 1, wherein said means fastening the flat member adjacent the forward end and adjacent the rear ends thereof consist essentially of the integrated continuous fibers and lignin of said unitary wooden blank, said flat member having been formed by routing out the air space in the blank between the elongated element and the flat member.