US2815045A - Loom temple rolls - Google Patents

Description

Dec. 3, 1957 v. B. SPLAWN 2,315,045

LOOM TEMPLE ROLLS Filed Jan. 18, 1955 FIG.|

-2 I I mum 21 4: 23 Ill IlllllllllllllllllllIlllliiilllllllllllllllll lllllllllllll I '.IEHIISEEEEE1 INVENTOR VIRGIL B. SPLAWN ATTORNEY United States Patent LOOM TEMPLE ROLLS Virgil B. Splawn, Burlington, N. C. Application January 18, 1955, Serial No. 482,536

20 Claims. (Cl. 139-296) This invention relates to loom temples and more particularly to loom temple rolls provided with a novel cloth-engaging surface.

It is now conventional practice to employ a mechanical tensioning means for gripping the selvage edges of a fabric as it is being drawn from the fell line of a loom. This tensioning means, usually a loom attachment, tends to prevent the finished fabric from elongating warpwise and contracting weftwise. One type of device employed for this purpose is a temple which may be installed at the side of the loom adjacent the weaving or fell line to receive the selvage edge of the cloth and maintain a constant uniform tension thereon as the woven cloth is drawn from the loom. One form of temple construction comprises a frame structure that supports a base member in which there are several parallel roll receiving recesses over which the finished cloth may be drawn and a cover member in which cylindrical cloth-engaging rolls are rotatably mounted on spindles in juxtaposition with the roll recesses. In operating engagement, the base member roll receiving recesses and the rolls are maintained in selective spaced relation to accommodate a fabric therebetween, normally with sufiicient compressive action for frictional engagement to eliminate weftwise slippage of the fabric.

Since considerable tension is usually applied to the fabric as it is being drawn from the weaving line there is a strong tendency for the fabric to elongate warpwise and invariably some objectionable weftwise narrowing will occur. In the standard types of temple rolls directed to overcoming this problem there have been several varied approaches made and they have been directed primarily to providing a tubular sleeve or cover made from a desirable cloth-engaging material which will be made to adhere to a rigid cylindrical wooden core member. The materials employed for the cloth-engaging surface are quite numerous, however, the physical properties required are usually such that each must have high frictional or tractive engagement with the cloth being produced, long wearing qualities during an extended useful life of the roll and uniformity in traction despite wear. A few of the materials found suitable for the temple roll cloth-engaging surfaces are rubber, natural and synthetic, cork, and more recently thermosetting, thermoplastic or reaction-setting plastics have been used with satisfactory results.

Another approach has been made to overcome the many difficulties encountered in this problem because despite the substitution of the various materials employed, fabric slippage has not been completely eliminated. Various configurations embossed or cut into the clothengaging surfaces have been utilized quite extensively yielding greatly improved results. Raised spiral ribs, narrow notches or slits, continuous axially spaced rings, helical ribs, and raised fluted edges are a few of the various forms. which have been applied to the cloth-engaging resilient surfaces. Ithas been found and verified 2,815,045 Patented Dec. 3,

by many tests that although it is possible to obtain optimum gripping characteristics with one type of surface configuration and a specific type material that the wear resistant properties are short-lived making replacement costs quite prohibitive. Also one surface configuration may be found suitable for one cloth application and completely fail to meet the requirements for other cloth applications. Furthermore, although one specific surface contour is found to be suitable when a new temple roll is installed in position shortly after use the surface wear may produce an objectionable glazed or flat surface which may ultimately result in irregular cloth traction. An earlier patent, U. S. Patent 2,428,101, by the same inventor, Virgil B. Splawn, indicated another and different approach to the solution of this problem.

The problem of slippage has become even more acute with the increased use of the newer synthetic yarns of which several types have a rather low coefiicient of friction thereby making some of the older forms of temple rolls impractical for use.

Therefore, it is an object of this invention to provide a temple roll with a cloth-engaging cover surface composed of individually deformable, resilient members that will appreciably reduce Weftwise cloth slippage.

Another object of this present invention is to provide a temple roll cover with a plurality of individual, axially displaceable resilient members, each of the members be ing provided with a section attached thereto to be displaced outwardly to grip the selvage edge of a moving cloth.

Still another object of the present invention is to provide a temple roll with an elastic cloth-engaging surface on which a plurality of axially deformable resilient members are integrally formed, and each of the members is provided with an outwardly displaceable irregular edge for gripping a moving cloth to prevent cloth slippage.

Yet another object of the present invention is to provide a temple roll with a continuous cloth-engaging rib surface composed of a series of individual separable sectors each of which is axially displaceable to prevent cloth slippage while in roll surface contact.

Another object of the present invention is the provision of a temple r'oll having a continuous cloth-engaging rib surface with a plurality of resilient, axially separable frictional elements, each of the resilient elements having a radially displaceable elastic segment to engage the edge of a moving cloth in order to prevent relative slippage between the cloth and the roll surface.

And still another object of the present invention is the provision of a temple roll having a rigid core member with a cloth-engaging elastic cover member which is composed of a cloth engaging rib formed from a series of uniformly spaced contiguous sectors each of which is displaceable independently of adjacent sectors and each sector having a resilient cloth engaging segment with gripping teeth thereon to prevent relative cloth slippage between the cloth and the temple roll.

Other and further objects and many of the attendant advantages of this invention will be readily apparent as the invention becomes better understood from the following detailed description taken in conjunction with the accompanying drawings in which like characters of reference designate corresponding parts throughout the several views and wherein:

Fig. 1 is a top plan view of a temple with a portion of a cover member broken away to illustrate the opera tive relationship of the component parts and incorporating one embodiment of the present invention;

Fig. 2 is a partial enlarged side elevational view of a portion of the temple showing the relative position of the rolls and the fabric, as taken substantially along the plane of line 22 of Fig. 1;

Fig. 3 is a front elevational view of a preferred form of temple roll embodying the present invention as incorporated in the temple structure of Fig. 1;

Figs. 4, 5, 6, 7, and 8 are front elevational views of modified forms of the cloth-engaging surface of temple rolls embodying the present inventive concept;

Fig. 9 is an enlarged partial sectional view of the preferred form of roll taken substantially along the plane of 99 of Fig. 3;

Fig. 10 is an enlarged transverse sectional view of a roll taken substantially along the plane of line 101tl of Fig. 9.

Referring to the drawings there is shown broadly in Fig. l a left loom temple which may be supported from the breast line of a loom and positioned adjacent to the Weaving line to receive one selvage edge 21 of a fabric 22 as it is drawn toward a beam for collecting the woven material. The temple 20 comprises a temple supporting bar 23 to which distal end a base 24 having a pair of parallel roll receiving recesses 25 and an intermediate roll rib surface 26 extend normally to receive thereon the selvage edge of the fabric as it is drawn from the loom. A cover member 27 is retained adjacent the base 24 as by suitable fastening bolts 28 and houses a pair of spaced apart spindles 29 that are mounted in bearings for rotatively supporting the temple rolls 3!) in position. The temple rolls 30 will be accommodated in the base roll recesses 25 and maintained in substantial parallelism during the operation as is clearly illustrated in Fig. 2. Cover member 27 may be raised or lowered so that the temple rolls 30 may exert the requisite compressive action on the cloth to prevent relative slippage between the roll surface and the traveling cloth as it is drawn over the temple base.

The construction of the temple roll 30, depicted clearly in each of the figures, is basically an inner tubular rigid core member 31 and an outer elastic or resilient cloth engaging cover 32. The core member 31 is usually made of wood although other suitable materials which are capable of presenting the requisite rigidity for withstanding the applied forces may be used with equally satisfactory results. As previously stated, the clothengaging cover portion 32 'of the roll may be made from a large variety of resilient or elastic materials such as natural rubber, the common synthetic rubbers, and suitable plastics as well as blends of these materials. In a preferred form of the present invention, as illustrated in Fig. 3, the temple roll comprises a rigid core member 31 and an elastic cloth-engaging tubular cover 32 which substantially wraps the entire core member. The tubular cover is provided with a single helical or spiral groove 33 of substantially uniform pitch which extends between the ends of the cover and projects only partially through the resilient cover so as to form a helical rib surface or thread 34 having a root diameter that is greater than the core diameter.

The outer diameter of the rib or thread 34 is substantially constant throughout the helix except that at one end 35 it may slightly chamfer to reduce the possibility of thread peeling or unraveling. The sides 36 of the helical thread have been cut so that an irregular or serrated edge 37 is formed presenting a series of gripping teeth which are normally flush with the helical periphery, as is clearly shown in Figs. 3, 9, and 10. Longitudinally extending and inwardly directed slits 38 are circumferentially spaced about the roll periphery to form a series of contiguous separable sectors 39 which are individually displaceable and deformable axially relative to adjacent sectors. As will be readily apparent to those skilled in this art upon comparing the rolls of the prior art, the rib surface configuration is normally continuous thus providing substantial resistance to lateral and axial deformation of that cloth-engaging portion or are of contact engaging the cloth. Furthermore, the lateral and subjacent support of the rib surface preeludes outward deformation of individual sectors of the cloth engaging surface. Accordingly, to facilitate the outward deformation of individual sectors 39 a series of chordal slits 40 spaced radially from the roll axis, is provided, preferably intermediate the root diameter of the helical rib. Each chordal slit 40 extends only partially through the rib width. As illustrated in Figs. 9 and 10, the chordal slits 40 may be made at the root diameter of the helical thread.

For the purposes of this specification the term chordal slit shall be sufficiently broad in scope to include an arcuate slit since an infinite number of chordal slits in a given distance will approach an arcuate configuration. Fig. 10 clearly indicates one form of roll structure wherein the longitudinal slits 38 are cut partially through the cover to communicate with the chordal slits 40 thereby forming a pivotable segment 41 attached to an individual rib sector.

Thus in operation, the continuous helical cloth engaging rib surface Will present a plurality of individual axially deformable sector elements 39, each of which is axially displaceable relative to adjacent contiguous sectors and additionally each sector element is provided with an outwardly movable resilient cloth gripping segment 41 having teeth thereon which will further restrain relative slippage of the cloth with respect to the roll.

In each of the modifications to be described herein after the formation of the individual sectors as well as the segments is substantially similar to the form illustrated in Fig. 3 and clearly represented in Figs. 9 and l0.

The temple roll depicted in Fig. 6 is substantially identical to the roll of Fig. 3 except that a longitudinal spiral slit 45 has been substituted for the relatively straight longitudinal slit 38 used in Fig. 3. The individual sector elements 46 in this modified form will be permitted to present a slightly increased resistance to axial deformation due to the angular disposition of the individual sectors, the inclined plane which each sector will engage when contacting adjacent sectors, and also the changing degree of arcuate contact encountered between sectors.

The roll surface illustrated in Fig. 7 is substantially similar to the surface of Figs. 3 and 6, however, instead of the helical thread formation between the ends 'of the roll a series of axially spaced grooves 48 are cut to provide the roll surface with the intervening ribbed rings 49. circumferentially spaced longitudinal slits 50, which may also take a spiral form shown in Fig. 6, are cut transversely across the rings 49 to form individual axially displaceable sectors 51. Chordal slits are also cut into the ring sides to form segments in each of the rings, at least on one side thereof, which will function in a manner similar to the other forms described above.

In Fig. 4 there is illustrated a roll having a helical groove cut at an angle partially through the tubular cover to form a helical thread 56 between the ends of the roll. In this represented form the main distinguishing feature from the previously described forms is the omission of the marked irregular edges on the helical thread. However, there does appear rather small jagged cloth gripping projections 57 which serve as teeth on the helical thread edge so that at least a side of a sector 58 on which a segment is cut will present a gripping edge to engage the cloth as the individual sectors come into cloth contact. The longitudinal inwardly directed and circumferentially spaced slits 59 are similar to those of Figs. 3 and 7.

The embodiment shown in Fig. 8 is substantially similar to the roll of Fig. 4, except that a series of axially spaced grooves 62 form spaced continuous ribbed clothengaging rings 63 similar to the roll of Fig. 7. Individual continguous sectors 64 are formed in each ring 63 by the circumferential slits 65 which transversely cut the individual ribbed rings from the periphery inwardly. As in previous examples, the longitudinal ortransverse slits 65 as well as the grooves 62 are out only partially through the elastic cover, and the chordal slits, represented by the form shown clearly in Figs. 9 and 10, only penetrate partly through the width of each ring. It is quite feasible in the forms illustrated in Figs. 4 and 8 to substitute the longitudinal spiral form of slit of Fig. 6 in place of that shown. However, the chordal slits shown in Figs. 9 and 10 to form the segments in each of the rings will be present in Figs. 4 and 6 as in the other embodiments illustrated and described.

Some woven fabrics have required a further modified form of roll surface Which is illustrated in Fig. as having a substantially continuous plain cylindrical clothengaging surface 68 in which spaced helical slits 69, 70 are generated between roll ends so that the pitch of the thread is relatively small thus permitting the sides of the helical thread to be substantially contiguous. In the form illustrated a coarse slit 69 and fine slit 70 are cut into the cylindrical surface 68. By providing the longitudinal slits 71 in the roll surface individual sectors 72 are formed. Each sector will be surrounded on all sides by similar sectors each of which is axially displaceable independently of the next adjacent sector in the helix. Additionally each sector is provided with a chordal slit to form a segment that is outwardly displaceable as shown in Fig. 10.

It will be quite evident that the resistance to axial deformation and displacement will be appreciably increased in this latter form. By partially undercutting the side of the helical thread to form a chordal slit in a side thereof at least one segment is formed on each sector that will have a cloth engaging edge surface suitable for imparting appreciable tractive action on the cloth. The width of the helical slit may be varied as well as combinations of slits formed in the cover such as the rather coarse slits and the fine slits shown. Although a straight longitudinal slit is employed in Fig. 5 a spiral form similar to the one of Fig. 6 may be used with satisfactory results.

In each of the illustrated forms it will be quite evident that some portion of the cloth engaging surface will remain in gripping contact with the traveling cloth and since there will be more intimate contact between the upturned segmental portion of each individual sector slippage will be reduced appreciably thus resulting ultimately in longer roll life.

Obviously many modifications and variations may be made in the construction and arrangement of the clothengaging ribbed surfaces by varying the geometrical configurations in the light of the above teachings without departing from the real purpose and spirit of this invention. It is therefore, to be understood that within the scope of the appended claims many modified forms of the cloth-engaging surface as well as. the use of alternatives may be reasonably included and modifications are contemplated.

What is claimed is:

1. A loom temple roll comprising a rigid core member and an integral tubular cover, said cover presenting a cloth-engaging surface between its ends, said clothengaging surface consisting of at least one circumferential continuous projecting rib of substantially uniform contour and having sides extending only partially through the cover, a rib side having a chordal slit extending only partly through the rib, and the rib periphery having circumferentially spaced slits extending thereacross to a depth at least sufiicient to communicate with the chordal slit.

2. A loom temple roll comprising a rigid core member and an integral tubular cover, said cover presenting between its ends at least one circumferential cloth-engaging surface and depressions extending only partially through the cover, said depressions being equally spaced axially along the. cover forming sides therein, one of said sides having slits radially spaced from the roll axis and intermediate the depth of the depression and projecting only partially through a side of the cloth-engaging surface, and the cloth engaging surface having slits circumferentially spaced from each other extending thereacross to a depth suflicient to communicate with the radially spaced slits.

3. A loom temple roll comprising a rigid core member and an integral tubular cover, said cover having disposed between its ends a continuous cloth engaging rib of substantially uniform width, said rib having sides extending partially through the cover, one of said rib sides having a chordal slit extending partially through the rib side intermediate the rib height, and the rib surface having circumferentially spaced slits extending across the cloth engaging surface and projecting radially inwardly to a minimum depth of at least the chordal slit to form axially displaceable sectors.

4. A loom temple roll comprising a rigid core member and an integral tubular cover, said cover having disposed between its ends a series of continuous clothengaging ribs of substantially uniform width spaced axially along the roll axis, each of said ribs having sides extending partially through the cover, one of said rib sides having a slit extending partially through the rib intermediate the rib height, and the periphery of said ribs having circumferentialy spaced slits extending across the ribs and projecting radially inwardly to a minimum depth sufficient to at least communicate with the slit in the rib side.

5. A loom temple roll comprising a rigid core member and an integral tubular cover, said cover having disposed between its ends a helical oloth-engaging rib of substantially uniform width, said helical rib having a root diam eter greater than the core member diameter and a chordal slit in the side of the helical rib extending partially through the rib, and said cloth-engaging rib periphery having circumferentially spaced slits extending thereacross to form individually separable sectors.

6. A loom temple roll comprising a rigid core member and an integral tubular cover, said cover presenting a generally cylindrical cloth-engaging surface and having between its ends at least one continuous cloth engaging rib, said rib having individual resilient separable sectors displaceable axially and radially relative to adjacent sectors, each of said sectors being formed by radially extending slits, said slits extending inwardly from the clothengaging surface and having a depth less than the cover.

7. A loom temple roll comprising a rigid core member and an integral tubular cover, said cover presenting a cloth-engaging surface and having between ends a continuous helical rib, said rib having individual resilient sectors axially displaceable relative to adjacent sectors, and said sectors having a segmental portion being radially pivotable from the helical rib sector upon cloth engagement.

8. A loom temple roll comprising a rigid core member and an integral tubular cover having disposed between its ends at least one continuous cloth engaging rib and depressions extending only partially through the cover forming said rib, said depressions being spaced axially along the cover to form sides in the cloth engaging surface, said rib having a slit radially spaced from the roll axis extending only partially into a side of the rib and a slit extending across the rib periphery and penetrating at least into the rib sufficiently to communicate with the radially spaced slit, and a serrated edge on a rib side adjacent the top surface forming irregular resilient cloth gripping teeth.

9. A loom temple roll comprising a rigid core member and an integral tubular cover, said cover having between ends at least one circumferential cloth-engaging projecting rib surface having sides extending partially through the cover, said ribs having individual separable sectors, each of said sectors being axially and outwardly deformable relative to adjacent sectors, and irregular serrations on the sectors to form cloth-engaging teeth.

10. A loom temple roll comprising a rigid core mem her and an integral tubular cover, said cover having disposed between its ends a helical groove forming a helical thread cloth engaging surface, the helical thread having a root diameter greater than the rigid core member, said helical thread consisting of a plurality of resilient sectors each of which is axially displaceable relative to adjacent sectors, each of said sectors having a slit partially cut therethrough and so arranged and constructed to form a displaceable segment capable of being raised when in cloth engagement, and an irregular serrated edge on the helical thread to form cloth engaging teeth.

11. A loom temple roll comprising a rigid core member and an integral resilient tubular cover on said core member, said cover presenting a generally cylindrical cloth-engaging surface and having disposed between cover ends a helical groove forming a helical thread, the helical thread having a root diameter greater than the core diameter, said helical thread having a slit radially spaced from the roll axis and intermediate the thread depth and additionally transverse slits circumferentially spaced from each other and projecting radially toward the roll axis only partially through the resilient tubular cover.

12. A loom temple roll comprising a rigid core member and an integral resilient tubular cover on said core member, said cover presenting a generally cylindrical cloth engaging surface and having disposed between cover ends a helical groove forming a helical thread, the helical thread having a root diameter greater than the core diameter, said helical thread having a chordal slit radially spaced from the roll axis intermediate the thread depth and extending partially through the thread, and additionally circumferentially spaced slits projecting radially toward the roll axis, each of said slits having a depth at least greater than the difference between the cloth engaging surface of the cover and the slit in the helical thread, and a serrated edge on the helical thread to form cloth-engaging teeth thereon.

13. A loom temple roll comprising a rigid core member and an integral tubular cover on said core member, said cover presenting a generally cylindrical cloth-enga ging surface and having disposed between cover ends a helical groove forming a helical thread having a root diameter greater than the core diameter, said helical thread having a plurality of slits in a side of the helical thread spaced radially from the roll axis to form arcuate segments, and said helical thread having longitudinal slits circumferentially spaced from each other extending from the cover periphery partially through the cover at least to the depth of the radially spaced slits.

14. A loom temple roll comprising a rigid core memher and an integral resilient tubular cover on said core member, said core member presenting a generally cylindrical cloth-engaging surface and having disposed between cover ends a helical groove forming a helical thread having a root diameter greater than the core diameter, said helical thread having a plurality of chordal slits in the side of the helical thread spaced radially from the roll axis to form arcuate segments, said helical thread also having circumferentially spaced slits extending from the cover periphery partially through the cover at least to the depth of the chordal slits, and an irregular edge on the helical threads to form groups of cloth engaging teeth on the segments each of the groups being radially and axially displaceable relative to each other.

15. Aloom temple roll comprising a rigid core member and an integral resilient tubular cover on said core memher, said cover presenting a substantially cylindrical clothengaging surface and having disposed between cover ends a helical groove forming a helical thread having a root diameter greater than the core diameter, said helical thread having slits in a side thereof, said slits being spaced radially from the roll axis, and said cloth-engaging surface having slits circumferentially spaced on the cover extending to a depth at least greater than the distance between the cloth-engaging surface of the cover and the slit in the helical thread.

16. A loom temple roll comprising a rigid core member and an integral resilient tubular cover on said core memher, said cover presenting a substantially cylindrical clothengaging surface and having disposed between cover ends a helical groove forming a helical thread, the helical thread having a root diameter greater than the rigid core member, said helical thread having longitudinally extending spiral slits forming a plurality of resilient sectors each of which is axially displaceable relative to adjacent sectors, said sectors having a segment partially cut therethrough and so constructed and arranged as to be raised partially when in cloth engagement, and an irregular serrated edge on the helical thread to form cloth-engaging teeth.

17. A loom temple roll comprising a rigid core member and an integral tubular cover, said cover presenting a generally cylindrical cloth-engaging surface and having disposed between its ends a helical thread, said thread having substantially contiguous sides which extend partially through the cover and individual contiguous sectors, each of said sectors being axially deformable relative to adjacent sectors constituting the helical threads, and each of said sectors having a segment partially out therethrough and so constructed and arranged as to be raised partially when in cloth engagement.

18, A loom temple roll comprising a rigid core member and an integral resilient tubular cover on said core memher, said cover presenting a substantially cylindrical cloth-engaging surface and having disposed between cover ends a series of axially spaced continuous cloth-engaging ribs, each of said ribs consisting of contiguous sectors axially deform-able independently of adjacent sectors, and each sector having an outer resilient segment outwardly displaceable.

19. A loom temple roll comprising a rigid core member and an integral resilient tubular cover on said core member, said cover presenting a substantially cylindrical clothengaging surface, and having disposed between cover ends a series of axially spaced continuous cloth-engaging ribs, each of said ribs consisting of contiguous sectors axially deformable independently of adjacent sectors, each of said sectors having a resilient segment outwardly displaceable, and an irregular serrated edge on each segment to form cloth-engaging teeth.

20. A loom temple roll comprising a rigid core member and an integral. tubular cover, said cover presenting a continuous cloth-engaging surface and having between ends a raised rib, said rib having individual resilient sectors axially displaceable relative to adjacent sectors, and each of said sectors having a segmental portion radially pivotable from the rib sector in response to weftwise stress of a fabric engaging the temple roll.

References Cited in the file of this patent UNITED STATES PATENTS 2,140,448 Brown Dec. 13, 1938 2,297,128 Benson Sept. 29, 1942 2,428,101 Splawn Sept. 30, 1947 2,434,820 Tifit I an. 20, 1948

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