US2832098A - Garnett wire - Google Patents

Description

April 29, 1958 w. H. MEE 2,832,098

GARNETT WIRE Filed Nov. 15, 1954 //v VENTOR: M41. IBM Ii MEE- H ffofllvE-fy:

United States Patent GARNETT WIRE William Henry Mee, Bradford, England Application November 15, 1954, Serial No. 468,949 1 Claim. (Cl. 19-114) The invention relates to Garnett wire of the kind used for clothing the swifts, doflers and certain other rollers of textile Garnett and similar machines, and has for its object to devise a new kind of wire whereby when the clothed rollers of Garnett machines are in use and a foreign body gains access thereto which overloads some of the teeth, one or more of the overloaded teeth of the new wire will be broken or torn from the base without damage to the remaining teeth or clothing and without fracturing the base.

Owing to carelessness in collecting and sorting waste for processing in Garnett and similar textile machines it sometimes happens that hard or metallic bodies are introduced to the machine. These foreign substances then cause considerable damage to the clothing of the Garnett rollers, rendering the latter useless, and the clothing must then be replaced at considerable expense. In addition, the friction produced by the impact of the foreign substance with the teeth of the Garnett wire is apt to generate suflicient heat to ignite inflammable materials in the machines.

The chief object of the present invention is to produce a new kind of Garnett wire comprising a base and integral toothed portion whose teeth are so constructed or treated than on engagement with a foreign substance which overloads the teeth an overloaded tooth or teeth may be broken from the wire base without the latter or the rest of the teeth being damaged. To this end the teeth of the new Garnett wire are perforated, slotted, grooved, recessed, or otherwise weakened, preferably near their base.

In order that the invention may be fully and clearly comprehended, the same will now be described with reference to the accompanying drawings, in which:

Figure 1 is a side view of a fragment of Garnett wire constructed according to one embodiment of the invention, and Figure 2 is a plan of Figure 1, part of which is shown in section on the line II--II of Figure 1.

Figure 3 is a similar view to Figure 1 of another arrangement of the invention, and Figure 4 is a sectional end view on the line IV-IV of Figure 3.

Figure 5 is a similar view to Figures 1 and 3, of still further embodiments of the invention.

Figure 6 is a sectional side view on the line VI-VI of Figure 5, and Figure 7 is a similar view to Figure 6 on the line VIl--VII of Figure 5.

Figure 8 is a cross-section of Garnett wire constructed according to a still further modification of the invention.

Referring to Figures 1 and 2 of the drawings, the Garnett wire comprises a base 1 and a multiplicity of appropriately shaped integral teeth 2.

Formed in the body of each tooth 2, preferably near the base thereof, is a perforation or aperture 3, which may be drilled, punched or otherwise provided.

In the example of wire illustrated in Figures 3 and 4, the base of each tooth has a V-shaped groove 4 formed in it, on one side of the wire. These grooves 4 extend almost to the clearer angle or back of the teeth and gradually diminish in depth, each tooth therefore being weakened at the front end or opener angle.

Referring now to Figures 5 to 7 of the drawings, each tooth may have a slot 3 formed in it, as clearly illustrated in the first full tooth of Figure 5; or a perforation 3 may be provided, as shown in the second tooth. In the third tooth of Figure 5 two perforations 3 are formed; whilst in the fourth tooth a dimple or recess 5 is furnished.

In all instances the grooves 4 may be omitted, or they may be formed on one side only of the teeth.

The grooves may be-rnilled or stamped in the Garnett Wires, or they may be otherwise formed, according to whichever method proves most convenient.

It will thus be understood from the foregoing examples and description that when the customary rollers of Garnett machines are clothed with wire of the kind described according to the invention, each tooth serves as a safety device. Should any foreign substance, likely to damage the wire, inadvertently gain access to such machines and consequently overload one or more teeth the overloaded tooth or teeth will be torn or broken from the supporting base because of the weakened nature of the teeth. Thus is obviated an amount of damage to the clothing likely to render immediate renewal of the clothing necessary. In this manner and by these means considerable economies may be effected in the cost of clothing replacement or renewal, and fire risks are correspondingly reduced to a minimum.

What I claim is:

Garnett wire of the class described including an elongated base having a plurality of integral teeth extending from one side thereof, each of said teeth adjacent the base being provided with an aperture to form weakened means so that, if one or more teeth is subjected to an overload, the tooth will be removed from. the base due to the apertured weakened means without damaging the other teeth.

References Cited in the file of this patent UNITED STATES PATENTS 1,346,637 Coulston July 13, 1920 2,139,859 Schwarze Dec. 13, 1938 2,331,943 Von Osten Oct. 19, 1943 FOREIGN PATENTS 24,245 Great Britain of 1896

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