US2196628A - Temple roll - Google Patents

Description

April 9, 1940.

' c. T. DICKEY TEMPLE ROLL" Filed Jan. 4, 1939 PRES? /l 'zw Paten-ted Apr. 9, y194() UNITED STATES f A 2,196,628 j PATENT" OFFICE 2,196,628 TEMPLE ROLL charles Themas Dickey, Elizabeth, NQJ.y Applicationdanuary 4', 1939, Serial No. 249,20*7

a claim.l (01.139-296) rllhis invention relatesto a. roll for use in a loom temple. l

As is well known. to those skilled inthe art,

a loom temple is employed at each. side of Ithe 5 loom adjacent thefell of the cloth beingv woven,

for the purpose of uniformly maintaining the cloth stretched widthwise.-

In connection with various types of fabrics, for p example, as those composed wholly or largely of 10.` rayon or cellulose ester filamentsV as acetated cellulose, or those of a fine and delicate nature, it has long been customary to have thev surface of the roll ofthe temple which engages. the cloth composed of rubber or rubber composition.

15' But the pressure andv pull of the cloth towards thev center of the loom over the. inner part of the temple acts to wear away the rubber surfaceI of such a temple'roll.

The small amounts of sulfur normally present 20 in rayon made by the viscose processv aided by frictional heat, appear to vulcanizeor otherwise indurate the rubber and destroy its 1ife, while the fumes or products of an acid nature evolved from, or present in the artificial'lainents em- 25 ploycd, especially acetate filaments, have a direct solvent and deteriorating effect upon' the rubber urface. and consequent rapid surface smoothing and disintegration of said rubber. v

The combined result is that the life ofthe roll `3o is considerably shortened and the eiiiciency of its proper functioning correspondingly diminished. The amount of such Wear depends upon various conditions other than `above indicated,v

ing the initial desired frictionalgripping sur.- l face, which remains uniform and substantially unimpaired for an indefinite period of time.

' A third object is to provide a temple rollof required frictional gripping lsurface which is unacted upony and. unimpaired byanyfof the components of, in, or evolved incident to the textile 50, Abeing woven. l

` A further object is to provide a temple roll wherein the surface passing-.in 'contact with the cloth,` does lnotvleave amari;v or streak, or deposit material on the goods, asis then case wherea scrubber-faced roll is used,especially when -the= I Il.; rubber hasbeen softened by thefumes? fromA thelaments being woven. This i's animportant point because the goodsv are plainI woven whitel and afterwardsy dyed. Even if an almostV urrnoticeable streak is left on the goods from deposi- 51'. tion of tiny traces of' rubber, Ethis materially interieres with uniform penetration" of dyestuff. in the. dyeing yoperation for` the, reason thatvrubber. i`sabsolutely insoluble in'r water, and the result is that uneven and unlevel dyeings result.

Other` objects of the invention will appear more.. fully `and .clearly from. the accompanying description and drawing, and Will be, particularly` pointed out in the claims.

The general nature,function and purpose ofV a lll loomternpleof the roll type are so wellr known and familiar to those skilled inv the' art", that it here only becomes' necessary to illustrate a por l tion of one typical form of a temple, together' with perferred forms' of the i'nventionembodied. 2g) therein. l l

In the `drawing and illustrative examples' are shown and describedseveral preferred forms of.' temple roll embodying my invention.

Eig. 1 is an end elevation ofv a temple head1 2 5 with the form or" roll embodying the invention Vlocated therein; I

Fig. 2 is a top plan View of the construction shown in Fig, 1; f

Fig. Epis a side elevation ci the core forming 3Q, the central part of the roll;

Fig. '4 is a face View of one ofthe units from f which theroll is'fabricated;

Fig. 5 is a side View of the unit shown in Fig. 4;

Fig.` 6 is a longitudinal cross section through: 3m a fabricated roll in an intermediate stage of manufacture;

Fig, 7 is a longitudinal cross section through afinished roll.. f

The invention .is `shown in connection with the ,my usual type of temple wherein two rolls are rotatively mounted. The temples are ar-,ranged` inv pairs, one at each side of the loom, and may be termedright-handed and left-handed since their r'function is to laterally stretch the clothnbeing 45m wovenfto the right and left side of the: loom. The construction. of thev templev is the same in both cases andtherefore only' a right-handed, temple has been illustrated.

The form `of roll embodied in the present in- 5th-g ventionis adaptedI for use in substantiallyv ally types of rolltemples.

-The temple illustrated in lFiguresl and'2 com prises an arm l; of which onlyI a portionisshown;. andfby which it is mounted. upon the. loomfatv y forward end, and a main body portion or pod 2 formed thereon having a trough-like shape in which the rolls are mounted. The temple rolls are journaled on pins 3 supported in the end walls of the pod 2, the inner ends 4 being fitted into the end wall 5 .and the outer ends being provided with enlarged screw-threaded heads 6 which are tightly threaded into the end wall '1.

The temple roll 8, to perform its function of putting lateral tension on the cloth being woven, has its surface formed into alternating ridges 9 and grooves I arranged in the form of a helix. In constructing the roll 8, a tubular core I I is provided having an enlarged head or ange I2 formed on one end and an internal bore I3 which acts as the journal on pin 3. The core I I may be made of wood, impregnatedk and/or plasticized Wood flour, wood pulp or the like.

The outer part of the roll 8 in which the ridges 9 and grooves I 0 are later formed is fabricated or built up of a plurality of washer-shaped members I4 in which the outside diameter is slightly greater than that of the finished roll and the diameter of the hole I is slightly smaller than the diameter of the core II.

To construct the roll 8, the proper number of impregnated washer-like members I4 are closely placed on the` core I l and extend from the flange I2 to the opposite end of the core. The core With its assembled members I4 thereon is then subjected to pressure or pressure and heat, in a device having dies with an internal configuration which will compress, distort, groove and furrow a the substantially cylindrical shape of the series of members I4 into the helically arranged ridges 9 and grooves I 0 of the finished roll 8. During this operationthe members I4 are so compressedV and merged into one another that they form a highly resistant, substantially one piece unit having the characteristics desirable in a temple roll.

The diameter of the flange I2 on the core `II is less than the outer diameter of the roll 8 and hence does not come into contact with the cloth or fabric upon which the temple roll acts. By

`-this arrangement and construction the temple roll is only subjected to wear upon that part of itself which has the wear resisting qualities given it by the material from which the members I4 are composed.

The members I4 are preferably of woven natural or articial fibers or admixtures thereof as cotton, linen, wool, silk or rayon, and impregnated with a thermoplastic body or` bodies which are substantially unaffected by the fibers being woven, or materials contained therein or evolved therefrom. And conversely, solvents, non-solvents, diluents, softeners and plasticizing bodies used in conjunction With the impregnating material must be substantially devoid of solvent action upon the filaments constituting the textile being treated.

suitable impregnating bodies forV this purpose i are cellulose derivatives in the thermoplasticized condition as cellulose esters and Iethers, ora ',thermoplastic natural or synthetic` resinousl body or mixtures thereof, or a thermoplastic mixture of cellulose derivative and resinous body in proportions varying with the chemical composition and physical constants of the same.

In carrying the above method of `my invention into effect, I may take 4 pounds avoirdupois of ten ounce duck, drill or canvas, and permeate or impregnated the same with a resinous body of the vinyl type rendered fluid by solution in a volatile l petroleum hydrocarbon mixture or other solvent or solvent combination, preferably of such flowability as will thoroughly permeate the woven fibers with the lminimum of solvent, excess of the latter after impregnation, being removed as by an evaporative step.

'Ihe canvas, after removal of volatile portion therefrom, Weighs about 6 pounds 11 ounces avoirdupois. From this impregnated textile, washer-like members are cut as shown in Fig. 4.

Or the original textile may bc cut into washerlike members which afterwards are impregnated in manner as above indicated or its substantial equivalent.

Example IL In an alternative method, the `Woven fiber may be impregnated as in the previous example, using a cellulose derivative as an etherized cellulose, preferably of relatively high degree of etheriiication as, for example, highly ethylated ethylcellulose or highly benzylated benzylcellulose, or mixtures of the same, with suitable solvents and thermoplasticizing bodies if desired.

A plurality of such impregnated textile sheets are then stacked one upon the other, in number so that when pressed together into a unitary-appearing body, a slab of `thickness to fit the length of II of Fig. 3 is' formed.

The plurality of sheets are then compacted in any suitable manner.

The impregnated sheets after being compacted into a unitary block or slab of thickness approximating the length of the plurality of Washer-like members I 4 shown in Fig. 6, are then cut in a direction perpendicularto the long axis of the threads'so as to form unitary hollow cylindrical bodies With inner diameter nearly equal to the outer diameter of 'core II and of outer diameter substantially the same as I4, and in appearance willbe the equivalent of I 4 in Figure 6, except that the plurality of I4 on II in Figure 6, is replaced by a unitary member,

Compression and distortion is then applied as described in the previous example, to produce the equivalent of the finished temple roll shown in Figure '7.

Example IIL-In another. embodiment of my invention, fibers in the unwoven state but preferably in a twisted condition, are chopped to a fraction of an inch in length, then homogeneously intermingled with the suitable thermoplastic body in any effective Way, being afterwards extruded in manner now knownin the plastic art to form an endless shell which lits over core II andof diameter 'shown at I4 of Figure 6, after the volatile portion has been substantially removed, if evaporative solvents have been employed.

The shell of indefinite length is then cut to individual lengths to fit over core I I (equivalent to the plurality of I4 shown in Fig. 6), one length placed over said cellulosic or other suitable core, and finally compressed and distorted kas shown in previous examples, or in a manner to produce an analogous result.

In the foregoing examples, after removal from thepress, the helically arranged ridges 9 are more or less rounded from thermoplastic extruded thereon. The final operation is a grinding or abrasive treatment whereby 9 is smoothed until a `flattened face is formed, as shown at 9 in Figure 7.

The plurality of woven or unwoven threads may be dyed, mercerized or otherwise treated before impregnation, and the impregnating medium may be .colored as by addition of dyestuff or pigment.

' 2,196,6asy t f The important feature of this invention resides 'in, and its eiciency depends upon, the relative percentage of raw edges of outwardly-projecting fibers constituting as the fabric-engaging surface the periphery of I4 of Figure 6, compacted y and held together by a thermoplastic body not deleteriously affected by components in, or evolved from, the bers orflaments passing over the same, and'constituting the helically raised ridges vElof Figure 7, wherein the surface of 9 is substantially parallel with core III. What I claim is: 4 l. A roll for a loom temple comprising a woodlen core having an internalshaft bearing; a hollow cylindrical body of twisted, unwoven cotton bers concentric therewithy and secured to said core; said fibers being rigidly encased ina matrix of thermoplastic cellulose derivative material not v`adversely aiected by the textile. being woven,

Y from; the fiber aggregates constituting an excomponents contained therein or evolved thereterior toothed or furrowed cloth-engaging 'and Africtionalfgripping surface of compacted,v outlong dimension of said fibers is perpendicular tov f y l0 3. `rA roll for a loom'vtemple comprising a core the axis of the core. f

and a plurality of textile washer-like members previously impregnated with colloided highly.

etherized thermoplastic cellulose ether concentrically :secured to said core; said washer-like membersbeing indistinguishablyrnerged into a unitary-appearing, highlyfresistant," cloth-en `gagirig and frictional-gripping unit with helically arranged grooves and abraded ridges having outwardly-projecting fibers. ,Y l

' CHARLEST. DICKEY.

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