US2171729A - Shuttle guide for looms - Google Patents

Description

Sept. 5, 1939. H. F. LIVERMORE SHUTTLE GUIDE -,FOR LQOMS Filed April 16, 1958 ELY/e 77/607 16677162" Flizyermre,

Patented Sept. 5, 1939 UNITED STATES I 2,171,729 I 4 SHUTTLE GUIDE FOR LOOMS Homer Fl Livermore, Boston, Mass, assignor to Guaranteed Parts, Inc., Allston, Mass, a corporation of Massachusetts Application April 16, 1938, Serial No. 202.423

7 Claims.

This invention relates to improvements in shuttle guides for looms, particularly those guides that are located at the entrance to a shuttle box and which are adapted to deflect a 6 shuttle downwardly as it enters said box.

It has been common practice for. many years to provide the working faces of shuttle guides with leather linings for the'purpose of protecting the shuttles against excessive wear. In protectm ing the shuttle, however, the lining of the shuttle guide is itself subjected to excessive wear which makes it necessary to replace said lining frequently.

The primary object of this invention is to pro- Vide a resilient metal guide member as a substitute for the leather lining hereinbefore mentioned and thereby providing a yielding structure which resists wear and effectively deflects the shuttle downwardly as it enters the shuttle box without causing injury to said shuttle.

Another object of the invention is to provide a resilient guide member which may be reversed upon its supporting structure.

The invention consists of a shuttle guide as set 5 forth in the following specification-and particularly as pointed-out in theclaims thereof.

Referring to the drawing:

Fig. l is a front elevation of an end portion of a lay, including a shuttle box having a back box plate upon which a shuttle guide embodying my invention is mounted.

Fig. 2 is a plan view of the shuttle guide disclosed in Fig. 1.

Fig. 3 is a front elevation of a portion of a back box plate having a modified type of shuttle guide embodying my invention mounted thereon.

Fig. 4 is a front elevation illustrating still another modified type of shuttle guide embodying my invention and including its supporting structure adapted for use upon a different type of loom from that illustrated in Fig. 1.

Fig. 5 is a plan view of the shuttle guide disclosed in Fig. 4.

Like numerals refer to like parts throughout the several views of the drawing.

In the drawing, referringv particularly to Figs. 1 and 2, 8 represents a lay having a shuttle box I mounted thereon including a back box plate 8, a front box plate 9, and a shuttle binder In all of a type well known in the art. The back box plate 8 has a forwardly projecting flange ll embodied therein which overlies the entrance to the shuttle box 1, said flange being provided for the purpose of deflecting a shuttle l2 downwardly as it enters said shuttle box if for reasons well known in the art said shuttle is caused to deviate upwardly fromits normal course as it approaches the shuttle box. In order to prevent actual contact of .the shuttle with the rigid metal flange H and consequent injury to said shuttle it has heretofore been customary to apply a leather lining to the surface of said flange which may be contacted by the shuttle, and while said lining does protect the shuttle it nevertheless is unsatisfactory because the lining itself is sub- 10 jected to such rough usage that it necessarily must be replaced frequently.

The shuttle guide of this'invention which is provided as a substitute for and also as an. improvement .over the leather lining hereinbefore mentioned is as follows: Mounted upon the flange I l and secured to the upper surface thereof by means of screws 13 is a resilient guide member l4 constructed of spring metal and'having a downwardly bowed or arcuate lower portion I5 2 embodied therein which is positioned beneath said flange and which is spaced apart therefrom a sufficient distance to permit an upward yielding movementv of said bowed portion 15 beneath the flange. The opposite end portions'of the guide 25 member l4. arerbent at It to extend around the opposite extremities of the flange II and provide portions I! which are secured to said flange by means of the aforesaid screws I 3. The guide member |4 isso positioned upon the flange II at 0 the entrance to the shuttle box 1 that when the resilient bowed portion I5 is contacted by the shuttle l2, the shuttle will be deflected downwardly and caused to enter said shuttle box without injuring either the shuttle or the guide mem- 35 ber. By forming the guide member M as a bowed resilient spring a structure is provided which effectively resists wear and at the same time protects the shuttle against wear. The

guide member is reversible end for end upon the 40 flange II. V

In Fig. 3 I have illustrated a modified embodiment of my invention wherein a resilient guide member IQ of approximately the same formation as the guide member I4 is rigidly secured at one 45 end thereof at 20 to the upper surface of a flange ll of a back box plate 8 by means of a screw l3, while the remaining portion of said guide member is free to flex upwardly. Normally the guide member I9 is positioned as illustrated in Fig. 3 50 with an end portion 2| thereof resting upon the upper surface of the flange II and held under tension thereagainst. A screw 22 extending loosely through an opening provided therefor in the end portion 2 [positions said end portion upon the flange ll. When a bowed lower portion 23 of a guide member l9 is contacted by a shuttle la the free portion of said guide member flexes upwardly from a bent portion 24 thereon to break the force of the blow as the shuttle is deflected downwardly into the shuttle box.

In Figs. 4 and 5 still another shuttle guide is illustrated embodying the novel features of my invention although adapted for use upon a different type of loom from that illustrated in Fig. 1. This structure comprises a bracket 25 embodying therein a flange 26 which is utilized as a support for a resilient guide member 21. The bracket is slotted at 28 to provide a means whereby it may be attached to the hand rail of a lay at the entrance to a shuttle box to replace a shuttle guide of well known type and which is provided with a leather lining which is subjected to excessive wear and consequently must be replaced frequently. The guide member 21 is con structed of resilient metal and has a downwardly bowed lower portion 29 embodied therein which terminates at its opposite ends in similar portions 30 which are rigidly secured to opposite end portions of the flange 26 by screws 3!, and in every respect the action of this structure is identical with the shuttle guide structure disclosed in Figs. 1 and 2 and the results accomplished are the same.

All of the various embodiments of the invention hereinbefore described are constructed in substantially the same manner of resilient sprin metal, and all of the structures effectively resist wear and function in substantially the same manner to cushion the blow of a shuttle and deflect the shuttle downwardly into the shuttle box.

I claim:

1. The combination with a shuttle box including a back box plate having a flange embodied therein, of a downwardly bowed resilient metal guide member positioned beneath said flange and attached at its opposite ends thereto and adapted to yieldingly deflect a shuttle downwardly into said shuttle box.

2. The combination with a shuttle box including a back box plate having a'flange embodied therein, of a downwardly bowed resilient metal guide member positioned beneath said flange and rigidly secured at one end thereof thereto, and an intermediateportion thereof being arranged to yieldingly deflect a shuttle downwardly into said shuttle box and being free to swing upwardly while so doing.

3. The combination with a shuttle box including a back box plate having a flange embodied therein, of a downwardly bowed resilient guide member positively secured at opposite ends thereof to said flange, and an intermediate portion thereof being spaced apart from the flange and arranged to deflect a shuttle downwardly into said shuttle box and yielding upwardly while so doing.

4-. A shuttle guide for looms comprising a bracket adapted to be secured to a supporting structure, and a downwardly bowed resilient spring positively secured at opposite ends thereof to said bracket and yieldable upwardly with respect thereto.

5. A shuttle guide of the character described comprising a resilient spring having a bowed intermediate portion terminating at its opposite ends in fastening portions reversely bent from said intermediate portion toward each other and arranged to be attached to a supporting structure.

6. The combination with a shuttle box including a back box plate having a forwardly projecting flange embodied therein overlying the entrance to said shuttle box, of a spring attached at opposite ends thereof to opposite ends of said flange and bowed downwardly therebeneath and adapted to yieldingly deflect a shuttle downwardly into the shuttle box.

'7. The combination with a shuttle box of a support overhanging the entrance thereto, and a metal guide member having a downwardly bowed intermediate portion positioned beneath said support and spaced apart therefrom and terminating at its opposite ends in reversely bent extensions arranged to rest upon and be attached to the support.

HOMER F. LIVERMORE.

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