US1852813A

US1852813A - Loom picker and method of making same

Info

Publication number: US1852813A
Application number: US410279A
Authority: US
Inventors: Clarence W Mansur
Original assignee: General Electric Co
Current assignee: General Electric Co
Priority date: 1929-11-29
Filing date: 1929-11-29
Publication date: 1932-04-05
Anticipated expiration: 1949-04-05

Description

April5, 1932. c. w. MANSUR 1,852,813

' LOOM PICKER AND METHOD OF MAKING SAME Original Filed Nov. 29, 1929 2 Sheets- Sheetl lfiVenborI y His Attorney.

April 5, 1932- 7 c. w. MANSUR 1,852,813

LOOM PICKER AND METHOD OF MAKING SAME Originl F iled Nov. 29, 1929 2 Sheets-Sheet 2 Inventori I Clarence \A/ Man sur:

WWW. T Hi5 Attorney Patented Apr. 5, 1932 UNITED STATES PATENT OFFICE CLARENCE W. MANSUR, 0F MAIDEN, IASBAGHUSE'I'TS, ASBIGH'OB TO GENERAL ELEG- TRIO COMPANY, A CORPORATION 01! NEW YORK Loom rrcxnn' am) unmon on name sum Application filed November 29, 1929, Serial No. 410,279. Renewed October-36, 1981.

The present invention relates to pickers for looms and especially to pickers formed from spinnable textile fibers held under great compression by a suitable adhesive, such as a 5 resinous compound which is converted bythe application of heat or by heat and pressure into an infusible, insoluble state. By the term spinnable textile fibers, I mean textile fibers capable of being spun, whether in a woven or unwoven state.

The object of my invention is to provide an improved construction and arrangement in a poker ofthis type, whereby the picker is especially well. adapted for heavy duty work such as is met with in connection with looms for weaving heavy woolen cloth, for example, and for a consideration of what I consider-novel and my invention, attention is directed to the following. specification and the claims appended thereto.

In the drawings, Figs. 1 and 2 are perspective views of pre-formed, parts whichma be utilized in forming a picker embo yin my invention; Fig. 3 is a perspectlve.

vievv o the-parts shown in Figs. 1 and 2 as-' sembled 'relativelyto each other and additional'iparts'which are utilized in the picker.

stick opening; Fig. 4 is a perspective view of a' completed picker embodying my invention; Fig. 5 is adetailed perspective view of a portion of the picker shown in Fig. 4; Figs. 6 and are perspective views similar to Figs. 1 and 2 of pre-formed parts which may be used in constructing a modified form of pick-.

er; Fig. =8is a perspective view showing the parts of Figs. 6 and 7 assembled relatively to each other and showing also an additional part corresponding to the additional parts shown in Fig. 3; and Fig. 9 is a perspective view of a completed picker. 4

Referring first to Sheet 1 of the drawings, Figs. 4 and 5, 1 indicates the base of the picker provided with a'guide rod opening 2, 3 indicates the head of the picker, i. e., the shuttle engaging portion, and 4 indicates the web which unites the base and head and is provided with picker stick opening 5. According to the embodiment of my invention shown in- Figs. 1 to 5, I form the exterior or outer portion of the base, web

and head of woven textile material 6, such as canvas or duck, united by a resinous compound which is converted by heat or by heat and pressure into an infusible, insoluble treated with resinous compound but is rolled to of woven textile material 8, which is not tightly on itself and held under compression by the surrounding woven material 6.

The material 6 is preferably in the fOllIi of a continuous strip of woven material such as a suitable grade of duck or canvas which has been treated with a resinous compound. This serves to provide a strong,tough outer portion-for the base, web'and head which is not likely to split-or break out.

The interior portion 7 of the base and web, which comprises relatively small pieces, may be formed from the trimmings which result from the manufacture of the-part 6, which trimmings are out up into pieces of suitable size. By this means the picker is formed in part from material which otherwise would be waste material, and also isformed from material which can be readily pre-formed to give the desired shape to the picker.

The shuttle engaging portion 8 may be I formed from woven material such as canvas or duck, tightly wound on itself and held imdercompression by the surrounding material 6. The ends of the 'material 8 receive the blow of the shuttle. By this arrangement I provide a material which is somewhat softer and more resilient than materialtreated with a resinous compound so. that it does not in any instance injure the point of the shuttle.

At the same time, it forms a durable sub-' stance which wears very slowly, whereby the picker is given a substantial life. The walls surrounding the roll 8 serve to hold it ti htly under compression and prevent its bu ging outwardly in a radial direction.

I may, in some instances, treat the shuttle engaging portion 8 wit an adhesive such as I a suitable glue or resinous material, as this may be desirable for certain classes of work;

For example, it may be desirable in cases wherein a fiber of cotton material dislodged from the head might be injurious to the 0th being woven. Therefore, while I prefer, especially for heavy duty pickers, to employ the untreated material in making the roll 8, it is to be understood that as to certain aspects my invention is not limited thereto necessarily.

In connection with pickers of this type,

difficulty has been ex 'erienced due to the icker wearing the pic er stick, and accordmg to a further feature of my invention I provide in the picker stick opening stick engagin inserts 9 of a material softer than that of t e main body of the picker, it bein of a character such that while it has goo wearing qualities still it does not wear the stick. Thls insert may be formed from rubberized cloth or leather, for example, and preferably is molded into place at the time the picker is formed.

In constructing a picker as. shown in Figs.

. 1 to 5, I-may first preform the

parts

6, 7 and 8 as shown in Figs. 1 and 2. In preforming the part 6 I may take a strip of woven material of suitable width and which has been treated with uncured resinous compound, wind it on itself about a suitable support to form a cylinder; and then cut and press it to the shape shown in Fig. 1 in a suitable press, the central opening through the layers being formed at the same time. Or, if desired, the strip ma be previously cut to the deslred shape wit spaced holes therein and then-wound on itself and pressed to form the construction as shown in Fig. 1. The pzrt 7 which forms an insert for part 6 may molded in a suitable mold from relatively small pieces of textile material which has been treated with uncured resinous compound, suflicientheat being supplied to stick the pieces together but not sufiicient to cure the resinous compound. The part 7 may be given a shape as shown in Fig. 2 so as to supply the necessary material to 've the finished picker the desired form. e part 8 which forms an insert for the head of part 6 may be formed from a strip of untreated woven material wound tightly on itself. In this case I may roll upon itself a comparatively wide sheet of material and afterwards cut rolls of the desired length from it.

The parts shown in Figs 1, 2 and 3 are then assembled relatively to each other, the

roll 8 being inserted in the upper rounded portion of the part 6 which forms the outer portion of the picker and the part 7 being inserted between the sides of the part 6 which form the outer portion of the base and web of the picker. The structure as thus assembled may be then given an initial pressing operation in a heated die to give it generally the shape shown in Fig. 3. Following hardness increasing this, the notches indicated at in the side walls of the opening 5 may be formed in any suitable manner and the inserts 9, which have been previously preformed, put into place with their projections fitting into the notches 10. The assembled structure may benow placed in a final mold and heat and pressure applied to compress the picker to the desired s ape and to cure the resinous compound. The temperatures and pressures necessary for curing resinous compounds are known to those familiar with this art, and a detailed description is therefore considered unnecessary. After the structure is removed from the mold, the rod opening 2 may be drilled in the base 1 thereby completing the picker structure.

A picker as thus formed, due to the outer portion 6, has the required strength to perform the heaviest types of work to which a picker is subjected. At the same time the insert 8 gives a contact portion in the head for the shuttle which is somewhat softer and more resilient than would be material treated with the resinous compound, so that while it has good wearing qualities it will not injure the point of the shuttle. The inserts 9 provide a softer portion for engagement with the picker stick which, while olferin good wearing qualities, are not sufficiently ard to wear 3 the stick unduly. By the above construction, I provide a picker which has the required strength and which presents surfaces of just t e desired properties to both the shuttle point and the picker stick.

In connection with the insert 8, during the final molding operation resinous compound from the walls surrounding the insert finds its way into the material of the insert, penetrating in gradually decreasingamounts to a con- 1 siderable depth. This serves to bind the'insert 8 firmly to the surrounding walls and also to give insert 8 a giaduated hardness, the

sert radially outward in accordance with the amount of resinous compound which has penetrated the insert.

The inserts 9 are preferably formed from textile fibers united by a rubber compound and in forming them I preferably arrange the textile material so thatedges of the material are presented to the outer surface of the in serts. In other words, the textile material for the most part extends crosswise of the inserts whereby ends of the strands are presented for engagement with the picker stick. This arrangement serves to give a good bond between the inserts and the adjacent portion of the picker and also to give a softer and a better wearing surface for engagement with the stick.

Referring now to the construction shown in Figs. 6 to 9 inclusive, I have here shown a picker of another type, but which is generally similar in construction to that shown in Figs.

cm the center of the in- 1 to 5 inclusive. Referring to: Fig. 9, 12: in

. one side engages the picker stick, andat 16' the picker shown as being. provided. with an insert of softer material for engagement with. the picker stick, such insert corresponding to the inserts 9 of Figs. 3 and 4.

This form of picker is constructed from preformed parts as shown in Figs. 6 and 7, the same comprising the outer or exterior portion 17 corresponding to the portion 6 of Fig. 1, and which is formed in a corresponding manner, an interior portion or insert 18 for the web which is formed from relatively small pieces of textile material united by a resinous compound, an interior base portion or insert 19 which is formed from a strip of Y textile material such as cotton duck whichlias been'treated with a resinous compound and rolled tightly on itself, and an inferior head portion or insert 20 for the head which is formed froma strip of untreated textile material rolled on itself after the manner of the insert 8 of Fig. 2. The parts shown in Figs. 6 and 7 are suitably preformedaftcr the manner already described in connection with Figs. 1 and 2, after which they are assembled relatively to each otheras indicated in Fig. 8, the insert 20 being inserted in the head portion of the part 17, the insert 18 being inserted inthe web portion of the part 17 and the insert 19 being inserted in the base portion of the part .17. The assembled parts are then placed in a die and pressed together in an initial manner to stick them together and bring them generally to the shape shown in Fig. 8. Following this, the structure is removed from the die and the notched slot 21 for the reception of insert 16'is formed as shown in Fig. 8. Following this, insert 16 is placedin position and the assembled structure is then placed in the final die and heat and pressure applied to cure the resinous compound and bringthe construction to its final form as shown in Fig. 9.

By using an insert 19 formed of rolled up woven textile material, I produce a base which isfstronger than the base shown in Figs. 1 to 5, and which serves toadapt the picker of Figs. 6 to 9 for duty of a heavier character than that of the picker shown in Figs. 1 to 5. However, if found desirable, -a picker of the shape shown in Figs. 1 to 5 may be constructed after the manner of the picker shown in Figs. 6 to 9, or a picker of the shape shown in Figs. 6 to 9 ma be constructed after the manner of the pic er shown in Figs. 1 to 5.v

In accordance with the provisions of the patent statutes, I have described the principle of operation of my invention, together the: apparatus; which. I: now" consider to. represent. the best embodiment thereof; but: I desire to have it understood. that/the apparatus shown is only illustrative and that the invention may be carried out; by other means.

Whatv I claim as new and desire to. secure by Letters Patent of the. United States is:

1., A. picker for looms. comprising, a base portion, a web portionv and a head. portion, the exterior of said portions being formed from woven textile material united by an adhesive, the interior of said base and web portions being formed at least in part from relatively small pieces of spinnable textile fibers united by an adhesive and the interior of the head portion being formed from spinnable textile fibers untreated with adhesive and held in a compressed state by said exterior textile material.

2. A picker for looms comprising a base portion, a web portion and a head portion, the exterior of said portions being formed from woven textile material united by an ad hesive, and the interior of the head portion being formed from spinnable textile fibers untreated with adhesive and held in compressed state by said exterior textile ma-v terial, said untreated fibers being exposed at an end of the head for engagement with a shuttle.

3. A picker for looms comprising a base portion, a web portion and a head portion, the exterior of said portions being formed from woven textile material united by an adhesive, and the interior of the head portion being formed from a roll of woven textile fibers untreated with adhesive and held in com-.

4. A picker for looms comprising a base portion, a web portion and a head portion, the exterior of said portions being. formed from woven textile material united by an adhesive and the interior ofv the head portion being formedfromaroll of woven textile fibers untreated with adhesive and held in compressed state by said exterior textile material, said roll being arrangeda transversely of said head whereby its edges are exposed at the'end faces of the head.

5. A picker for looms comprising spinnable textile fibersheld in a highly compressed state by a resinous compound, said picker having a stick engaging insert formed from a softer material molded directly to and forming an integral part of the picker.

6. A picker for looms comprising spinnable textile fibers held in a highly compressed state by a resinous compound, said picker having'a stick engaging insert formed from rubberized textile 'material molded directly to and forming an integral part of the picker.

7 A picker for looms having a shuttle engaging portion formed from untreated spinnable textile fibers held in a highl compressed state by a surrounding wall 0 woven textile material united by an adhesive.

8. A picker for looms having a shuttle engaging portion comprising a roll of woven textile material wound tightly on itself and held in a highly compressed state by a surrounding wall of woven textile material united by an adhesive.

9. The method of forming a picker for looms which comprises winding upon itself a strip of woven textile material treated with an adhesive to form outer walls for a picker, placing inserts within said outer walls, the insert for the head being formed from untreated textile material, and then molding the picker to bring it to the desired form and to cure the adhesive.

10. The method of forming a picker for looms which comprises preforming outer walls and inserts, said outer walls com rising woven textile material treated wit an adhesive and the insert for the head comprising untreated textile material, assembling the inserts within said walls, and then molding the picker to bring it to the desired form and to cure the adhesive.

11. The method of forming a picker for looms which comprises preforming outer walls and inserts, said outer walls comprising woven textile material treated with an adhesive, the insert for the head comprising untreated textile material, and the inserts for the web and base comprising textile material treated with an adhesive and being formed at least in part from relatively small pieces of textile material, and then molding the picker to bring it to the desired form and to cure the adhesive.

12. A picker for looms comprising spin nable textile fibers held in a highly compressed state by a resinous compound, said picker having a stick engaging insert formed from rubberized textile material molded directly to and forming an integral part of the picker, strands of the textile material extending transversely of the inserts whereby their ends are presented to the stick-engaging surface.

13. A picker for looms comprising spinnable textile fibers held in a highly compressed state by a resinous compound, said picker having a stick-engaging portion comprising edgewise arranged textile material molded directly to and forming an integral part of the picker.

14. The method of forming a picker for looms which comprises winding upon itself a strip of woven textile material treated with an adhesive to form outer walls for a picker, placing inserts within said outer walls, the insert for the head being formed from a roll of textile material with its edges exposed to the end faces of the head, and then molding CLARENCE W. MANSUR.