US2628406A

US2628406A - Thread storead advancing device

Info

Publication number: US2628406A
Application number: US109387A
Authority: US
Inventors: George M Allen
Original assignee: American Viscose Corp
Current assignee: Akzo Nobel UK PLC
Priority date: 1949-08-09
Filing date: 1949-08-09
Publication date: 1953-02-17
Anticipated expiration: 1970-02-17
Also published as: BE497319A; CH291464A; FR1022718A; ES194172A1; GB683495A

Description

Feb. 17, 1953 G. M. ALLEN 2,628,406

THREAD STORAGE-THREAD ADVANCING DEVICE Filed Aug. 9, 1949 INVENTOR. GEORGE M. ALLEN ATTORNEY- be either single end or double end supported of any of the types which are well known in the art such as that shown in the patent to Stanley et al. 2,403,031, July 2, 1946.

The thread supporting bars of this invention are hollow, rigid, longitudinally extending members of glass, noncorrosive, fused ceramic material or the like that is homogeneous throughout. The cross section of the bar is substantially uniform throughout its length. The bar comprises a hard smooth continuous unbroken top portion having one or more thread contacting portions and spaced therefrom a base portion by which the bar may be secured in position in the cage-like member. The top'portion and the base portion are connected together by spaced apart side portions that are integral with the top and base portions. The bars are preferably made from preformed, hard smooth surfaced, uniform, hollow tubing of glass or the like that is homogeneous throughout. The bars may be formed by heating the tubing and expanding it against a mold or by heating the tubing and shrinking it on a mandrel of the desired cross section: The resulting bar is-rigid and has a hard smooth continuous unbroken outer surface that is noncorrosive and resistant to abrasion.

The hollow bar may be reinforced from the inside by a layer of cellulose acetate, vinyl resin or the like plastic, adhered to the inner wall of the bar. Natural fibers or-synthetic fibers such as rayon, glass, or the like, or fine wire may be incorporated in the plastic to further reinforce the glass. Additional reinforcing'may be provided such as a tubing or solid rod positioned within the bar and extending substantially the length of the bar. The cross section of the outer periphery of the reinforcing maybe substantially that of the inner periphery-of the bar to closely fit therewith. The reinforcing may be fixed to the interior of the bar by plastic or other adhesive. A pigment may be added tothe plastic, such as black, or other dark color or white, so that the threads supported by the bar may be readily seen. I 7 7 Each bar is attached to parts of the cage-like member by longitudinally extending spacedanchoring blocks or by a single anchoring block positioned in the bar against the base portion of the bar. The base portion of the bar is secured to parts in the cage-like member by screws that extend through the base portion and into the blocks or by screws that extend into the ends of blocks positioned adjacent the'ends of the bar. With this attaching arrangement only the base portion of the bar is pressed against the supporting means in the cage-like member. The bars being hollow are relatively light in weight, but are sufficiently rigid due to their cross section that they are practically free from distortion during operation. 7

Thread storage-thread advancing devices embodying the present invention may be used in handling thread, yarn, ribbon -bands, tow and the like, and wherever the term thread'is used herein before or hereinafter it is intehdedto be inclusive.

Referring to Figures land of the drawing, I

reference character 2 indicates generally a form of thread supporting bar embodying this invention. The thread supporting bar is a hollow, rigid, longitudinally extending member of glass, noncorrosive fused ceramic ware, or the like that is homogeneous throughout with a continuous smooth, hard outer surface and a cross section that is uniform. The perpendicular distance between the bottom of the base portion and the thread contacting surfaces of the top portion indicated by reference character A in Figure 2 is practically constant throughout the length of the bar. The bar comprises a smooth, continuous unbroken top portion 3 having thread contacting portions 4 and spaced therefrom a base portion 5 by which the bar may be secured in position in the cage-like member. The top portion and the base portion are connected together by flat, spaced apart side portions 1 and 8 that are integral with the top and base portions. In order to further reinforce the thread supporting bar for safety purposes, a rigid metal tube or rod, or a layer of tough elastic plastic 9 is firmly anchored to the interior surfaces of the bar by an adhesive or the like. The plastic layer may be of cellulose acetate, vinyl resin or the like. The plastic layer may be preformed and adhered to the inner. surface of the bar by cement or by chemical adhesive properties of the plastic, or the plastic either molten or in a solvent may be uniformly applied to the inner surfaces of the bar and dried or otherwise allowed to solidify. The bar may be further reinforced by the addi tion of natural or artificial fibers or filaments or fine wire to the plastic. In the event the bar is cracked or broken during operation, the reinforcing adhering to the bar throughout its interior will prevent pieces of the bar from being thrown out. In order to make the portions of the thread supported on the bar clearly visible, pigment, such as carbon black, titanium dioxide, or other pigment of a color contrastin to the color of the thread to be supported may be added to the plastic or adhesive. The reinforcing being applied to the interior of the bar does not contact the thread and is not subject to wear or corrosion. Also, the reinforcing does not interfere with the mounting means for the bar. The bars are mounted and fixed in position on supporting members of the cage-like members of the device by means of the base potrions.

In Figure 4 of the drawing is shown a cage-like member of a thread storage-thread advancing device embodying the invention. The longitudinally spaced circular disk-like supporting members it and I l are keyed to the rotatable shaft l2 that is mounted in suitable supporting bearings that are not shown. The disk-like members are formed at their peripheries with axially extending generally circular flanges I3 and [4. The bar members are circularly spaced apart and are supported on the flange members with the lower surface of the bottom portion of the bars in engagement with the outer periphery of the flanges. The portions of the flanges in engagementwith the lower surface of the bars are flattened to engage the entirewidth of the bars throughout the length of the flange members. Anchoring blocks I5 of durable plastic, metal or the like that closely conform to the inner cross section of the bars are fitted into the bars in regions adjacent the flanges. Bolts l5 thatpass through aligned holes in the bottom portions of the bars and the flange members are screwed into tapped holes in the blocks firmly anchor the bars to'the flange members. With this arrangement the top portions of the bars are continuous and are unbroken by any drilled holes or other means for securing the bars to supporting means which would weaken the bars and interfere with the thread supported on the bar. V V

In Figure 5 of the drawinga portion of a section of a cage-like member of a thread storage-thread advancing device is shown having mounting means for the thread supporting bars that embody another form of the invention. Reference character 2 indicates the thread supporting bar which is of the same type as that shown in Figures 1 to 3 inclusive. The cage-like member comprises a plurality of the thread supporting bars that are circularly spaced and are fixed adjacent each end to the circular disk like members I! are keyed to the shaft l8. The shaft is rotatably supported in suitable bearings that are not shown. Anchoring blocks I9 of durable plastic, metal or the like that closely conform to the inner cross section of the bars are fitted into the ends of the bars. The bars are clamped to the periphery of the disk-like members through the anchoring blocks by means of the L-shaped brackets 20. The brackets are bolted to the disk-like members adjacent the peripheries thereof and to the an choring blocks by bolts 2! and 22. The bars are supported through the base portions of the bars which are clamped against the peripheries of the disk members and the inner surfaces 23 of the laterally extending portion of the brackets. With this arrangement no holes need be bored in any portion of the bar members so that all outer portions of the bar have a continuous unbroken surface throughout.

If desired, such as in a single end supported thread storage-thread advancing device, the bars may be supported in the cage-like member at only one end to a disk-like member positioned adjacent that end.

While preferred embodiments of the invention have been shown and described, it is to be understood that changes and variations may be made without departing from the spirit and scope of the invention as defined in the appended claims.

I claim:

1. A thread supporting bar for a thread storage-thread advancing device comprising a hollow longitudinal extending member of glass having a smooth continuous unbroken top portion provided with a thread contacting portion thereon, a base portion spaced from the top portion by which the bar may be supported, spaced apart side portions connecting the top portion and the base portion that are integral with the top and base portions, and a reinforcing layer of tough elastic plastic material adhered to the inner surfaces of the top, bottom, and side portions of the bar said plastic material having reinforcing fibers therein.

2. A thread storage-thread advancing device comprising a hollow longitudinally extending thread supporting bar of glass having a smooth continuous unbroken top portion provided with a thread contacting portion thereon, a base portion spaced from the top portion, and spaced apart side portions connecting the top portion and the base portion that are integral with the top and base portions, a supporting member, means for mounting the bar in the device on the supporting member comprising an anchoring member extending within the bar and in engagement with the base portion, and means for securing the anchoring member to the supporting member with the base portion of the bar clamped between the anchoring member and the supporting member.

3. A thread storage-thread advancing device comprising a hollow longitudinally extending thread supporting bar of glass having a smooth continuous unbroken top portion provided with a thread contacting portion thereon, a base portion spaced from the top portion, and spaced apart side portions connecting the top portion and the base portion that are integral with the top and base portions, a supporting member, means for mounting the bar in the device on the supporting member comprising an anchoring member extending within the bar and in engagement with the base portion, and means extending through the base portion of the bar for securing the anchoring member to the supporting member with the base portion of the bar clamped between the anchoring member and the supporting member.

4. A thread storage-thread advancing device comprising a hollow longitudinally extending thread supporting bar of glass having a smooth continuous unbroken top portion provided with a thread contacting portion thereon, a base portion spaced from the top portion and spaced apart side portions connecting the top portion and the base portions that are integral with the top and base portions, a supporting member, means for mounting the bar in the device on the supporting member comprising an anchoring member extending within the bar and in engagement with the base portion and means for securing the anchoring member to the supporting member with the base portion of the bar clamped between the anchoring member and the supporting member comprising a bracket member having a portion secured to the supporting member and an offset portion positioned at the end of the bar and secured to the anchoring member.

GEORGE M. ALLEN.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,983,221 Furness Dec. 4, 1934 2,056,197 Knebusch Oct. 6, 1936 2,380,526 Hoagland July 31, 1945 2,429,584 Stone Oct. 21, 1947 2,475,483 Dasher July 5, 1949