US1887342A

US1887342A - Tuft yarn spool and method of making the same

Info

Publication number: US1887342A
Application number: US511171A
Authority: US
Inventors: Robert E Vickerman
Original assignee: Individual
Current assignee: Individual
Priority date: 1931-01-26
Filing date: 1931-01-26
Publication date: 1932-11-08
Anticipated expiration: 1949-11-08

Description

Nov. 8, 1932.

TUFT YARN SPOOL AND METHOD OF MAKING THE SAME Filed Jan. 26. 1951 IN V EN TOR.

A TTORNE Y.

R. E. \II'ICKERMAN 1,887,342

Patented Nov. 8, 1932 ROBERT E. vIcKnRMaN, or rn'rtanntrina rnnnsvnvanm TUFT YARN SPOO -AND METHOD or MAKI GJT E' SAME Application filed January 26,1931. serial No. 511,171.

The present invention relates to yarn spools employed in the weaving of tufted pile i'tabric's and relates more, particularly to an improved spool and method ofinaking the same.

. some of the objects of the present invention are to provide an entirely new form of yarn spool; to provide a new method of forming yarn spools; to provide a yarn spool wherein provision ismade for self anchoring the yarn so that relatively short ends are attached to the spool andaccurate setting with a minimum of Waste takes place; to provide a spool which is light, inexpensive to manufacture and embodies features of advantage not present in any spools heretofore devised or manufactured; to provide a yarn spool which makes the use of a holding clamp unnecessary; and to provide other improvementsas will hereinafter appear.

In the accompanying drawing Fig. 1 represents a blank showing one step in the method of forming a spool in accordance with the present invention; Fig. 2 represents the same after two steps in the methods have been completed; Fig. 3 represents a section on line 33 of Fig. 2; Fig. 4 represents a perspective of the partially complete spool after the shaping and welding steps; Fig. 5 represents a side elevation of arfinished spool embodying the invention; Fig. 6 represents a perspective of a partially formed blank show ing another embodiment of the invention;

and Fig. 7 represents afperspective of a por-' tion of the spool body after formation prior to the attaching of the spool heads.

Referring to thedrawing one form of the 7 present invention consists of a body 10 which forms the core for wrapping strands of yarn for later use 1n a loom for weav ng tufted fabrics. The body 10 isrprovided withend flanges 11 for the purpose of preventing displacement of the strands axially from the ends. In the present instance the body 10 is of tubular construction and is formed with a' row of teeth 12 which parallel the long axis of the body 10- in relatively close proximity to a groove 13 also extending lengthwise of the body and parallel to the aXis thereof. While the part 13 is specified generally as a clearance beneath the teeth 12 to give thelatrter an overhung relation so that the yarn strands pass respectively betweenthe teeth to be more surely-anchored. This construction isalso designed to interrupt as little as possiblethe general cylindrical shapeof the body and asa; result .afiter one layerof yarn strands has beenfwrapped about the body 10, the t.eeth 12 and clearance groove 13 V are concealed and thewrapped yarn has the appearance of a true .cylinderthroughout the length of the body. Thus. while preserving the usual outer appearance of a Wound. spool the new article-conceals a novel holding or anchoring means for the end of every. strand I onthe body. The ends of the body 10' are respectivelysecured to headsor flanges 11 of a diameter to permit theproper buildup of the yarn asitisreele'dupon the body 10.

,grooveit really functionsv as a depression or' The method ofmaking the spool of the present invention consists in first stamping tangular bla nk 30 of sheet metal bythe use of a die designed to shape and'aceurately shaped to complete in the same operation'the" the rowlof teeth 12. along one edge of ,arecform the teeth.) Preferably the die is also groove13 which runslongitudinally of the .blank and parallel tothe rovi of teeth but lo- .cated: near the. opposite edge of the blank.

from the teethi12. As so formed the blank is i then rolled about a mandrel or other suitabletool to bring to substantially cylindrical, shape butwiththeteeth 12 overlapping the grooved edge of the blank. I In this position the teeth .12 project over the groove 13 sothat there islfull clearance for the placing of each y Y yarn strandinone of theslits between the teeth. The overlapped ends are then welded along the line ofcontact 14 so that the resulting tube isto all'intents and purposes an integral body having an outer smooth periphery interrupted only" by the groove 13 with its overhanging teeth 12. The heads or,

flanges 11 are now swaged. expanded,-welded or otherwise madefast'to the ends of the body 10 and the new spoolis complete and "ready for usexTheheads 11 are each'ofdisc form having projecting axially disposed ends 20 which journal the spool for rotation during winding and unwinding operations.

In the form of the inventionshown in Figs. 6 and 7 a blank 14 of sheet metal is first preferably formed with two rows of

teeth

15 and 16 along two opposite edges thereof, while a groove 17 is pressed into the metal in close proximity to one of the rows of teeth. The blank so formed is then rolled to tube shape with one row of teeth superposed upon the other and then welded in such position. This construction'not only provides the desired overhanging comb with the clearance groove but also a row of teeth, each of which is of double thickness and so capable of resisting bending and displacement in use. In

some instances it may be found desirable to roll the blank so formed with a groove into its substantially cylindrical shape prior to forming the teeth and in this case the two straight edges of the blank are brought together around the mandrel and thenwelded permanently together. The teeth are then milled or ground into the edgeof double thickness to comp'letethe'comb. The final step is the securing of the spool heads to the body as heretofore explained.

It will now be apparent that a new method and article for winding yarns has been devised whereby .each strand of the yarn is anchored at one end to the article and can be embodied in various other forms without departing from the present invention. It is further to be understood that where the term groove is used it may not necessarily always be rolled into the blank and is to be understool as being included in any bending operation of the blank which would form a clearance space beneath a row. of teeth.

Having thus described my invention, I a

wound evenly and accurately to form acomplete wound spool of substantially uniform d mensions. Furthermore for the spool of the present invention it is no longer necessary to draw the yarns across the body of the spool for a considerable-length in order that they be held; while a clamp bar is placed in position to hold the yarn ends. These extended ends of the yarn result in a tremendous waste when taken in the aggregate, all of which is I avoided by the construction of the present invention. Furthermore this pulling of the yarn taut by the operator takes place in groups of yarn strands and gives a converging effect which leads to improper crossing oft-he strands so that thereis also considerable waste when unwinding due tofthe unusable condition of these crossed strands. This disadvantage is entirely avoided by the presplace because these last convolutions of the yarn strands cannot unwind and hang loose and tangled over the side of the tuft frame.

In spools as heretofore used this is a common fault and these unwrapped ends have to be out off and add to the loss.

- l/Vhilebut two forms of the present invention have been here shown by way of example it is understood that the invention is not specifically limited to either but may be