US1679571A - Compressor roll - Google Patents

Description

Aug. 1, ,1928;

' glvvmnznc'oov Lindsay SHalL 2 Sheets--Sheelz 2 v l.. s. HALL couPREssoR ROLL v Filed July 19,1926l rulli-.. l l nulli Patented Aug. 7, 1928.

UNITEDSTATES 1,679,571 PATENT OFFICE.

LINDSAY S. HALL, OF NEW BEDFORD, MASSACHUSETTS, ASSIGNOR TO THE GOODYEAR TIRE.& RUBBER COMPANY, OF AKRON, OHIO, A CORPORATION OF'OHIO.

COMPRESSOR ROLL.

Application med July 19,

My invention relates to loom attachments and it has particular relation to a compressor roll adapted to be used in conjunction with a loom beam.

One object of my invention is to provide adevice which is associatedwith a loom beam to control the tension of the selvage portion of strands of `fabric material adapt* ed to be wound thereon.

Another object of my invention is to provide a compressor roll for loom rbeams which is adapted to vary the tension of the outer strands of warp material wound upon a loom beam preparatory to the wcavingthereof.

In the manufacture of fabric material, especially of cord fabric, of the type employed' in building pneumatic tire casings, the cord or warp strands of the fabric are held together by. interwoven sparsely distributed filler or cross threads. Heretofore it has been customary to wind the warp cords upon a loom beam, the layers of cordsbeing uniformly compressed and distributed upon the loom beam by a smooth cylindrical roll. From the loom beam the warp cords were guided directly into the loom for weaving and accordingly the cord fabric. was woven entirely across its web under substantially the same degree of tension.

By I employing a compressor roll constructed according to my invention, the edge o r selvagewarp cords can be Wound more loosely upon the loom beam than the Icords of the central web or body portion of the fabric. Thus, the warp cords adjacent the edges of thefabric web will be longer and under less tension thanv the central cords. By reducing the tension atthe edges of the fabric material in this manner, the finished rubberized fabric material prepared therefrom may bereuty upon a bias cutter much more uniformly than the rubberized fabric whose cords are directedinto' a loom` for weaving under the samedegree of tension from edge to edge. Itv has been found by experiment that because of the fact that the fabric is provided with loosely woven edges or selvage portions, when it is cut into 'plies upon the bias cutter, the plies are substan tially of perfect width according to measurement; whereas when fabric of the uniformly tensioned cordweave is so cut, there is considerable objectionable variationl in the widthof the ply Vwhich has caused much inconvenience. In addition to lobviating the 1926. serial No. 123,362.

disadvantage of variation in width of the fabric plies, my inventionalso provides for the production of rubberized fabric material which will not wrinkle during the calenderingv operation. i f

vThe compressor roll embodying my inven tion is provided with reduced end portions having. cylindrical surfaces which are slightly stepped or offset from the larger centrally disposed cylindrical surface of the roll by a beveled surface.k A plurality of rings, preferably .made of metal, encircle l and fit snugly over the reduced end portions and are ofsmaller peripheral diameter than thek body portion of the roll. When the warp cords of fabric material are being wound upon the loom beam, the rings are removed during the first part of the winding operation and the cords adjacent the reduced portion `are accordingly Wound rela-- tively loosely upon theloom beam, while the cords under the body portion of the compressor roll are pressed tightly upon the loom beam. Afl'ter the loom beam has been partially filled with cord material, and the selF vage or edge cords adjacent the reduced portions have been built up to a desired height the rings maybe placed over the ends of the compressor roll.. Thus, the outer or edge cords will be wound about a greater diameter than the centralor web cords and when the cords are fed lfromythe loom beam into the loom for weaving, the selvage cords are under considerable less tension'than the central cords.

For a better understanding of my invention, reference may now be had to the drawings forming a part of this specification of which:V

Fig. l is an beamand a compressor vroll designed according to my invention; l

Fig. 2 is a plan viewof a supporting apparatus for the compressor roll;

Fig. 3 is a cross-sectional view of av'loom beam showing the compressor operatively mounted with respect theretothe section being taken substantially along the line III-III of Fig. l, and parts being broken away for the sake of clearness;

Fig. 4 is a fragmentaryk elevational view of the compressor roll constructed according to my invention; and f f Fig. v5 is a fragmentary view on an enlarged scale illustratingin detail the mountyelevational view of a looming and construction of ring members embodying certain features of my invention.

In order that a practical application of my invention may be readily understood, I have illustrated a loom beam 10, which in this embodiment of my invention, is employed in connection with the so-called warping or beaming operation. However, it will be apparent to those skilled in the art that the compressor roll has many other applications in the arts of weaving and winding, all of which are within the purview of this invention. The loom beam is composed of a cylindrical member 11 provided at its ends with parallel discshaped flanges 12 and 13 and an axially extending shaft 1/1 upon which the entire as-y sembly is secured. rlhe shaft 1/l is journaled adjacent its ends in horizontally projecting journal brackets 15 and 16 respectively secured to supporting frame members 17 and 18. It is to be understood that the loom beam is adapted to be rotated through the medium of suitable power Vdriven connections (not shown) in order that cord strands 19 may be wound thereon. Also the axial shaft 14 is sectional, being provided with joints 21 which are adapted tobe disconnected in order that the loom beam may be lifted from the frame members.

Beneath the loom beam 10 a shaft 2O extends substantially parallel thereto and is journaled in brackets 22 and 23 secured to the frame members 17 and 18. One end of the shaft 2O is provided with a rigid horizontally projecting arm 2a which carries a counterweight 25. A ratchet wheel 2G rigidly secured to the shaft operates in conjunction with a pawl 27 which prevents the shaft from turning in one direction when in operative position.

The portion of the shaft 20 extending between the frame members 17 and 18 is adapted rigidly to support a plurality of arms 23 and 29 which extend laterally din rectly beneath the loom beam 10. Each of the arms 28 and 29 is of identical construction and each is provided with a pair of roller 'members 30 supported upon axial pins', .indicated at 32. rlhese roller members are adapted rotatably to support a compressor roll 33, 'which engages. under pressure the cord windings 19 against the force exer ued by the counterweight 25.

The compressor roll 33 is of substantially the same length as the distance between thev flanges 12 and 13. In order to insure a close itbetween the flanges and the ends of the compressor roll at all times, the latter is constructed in two sections, which are provided with extensible connections, indicated at 3d. Each end of the compressor roll is reduced in diameter and is provided with a relatively short cylindrical surface 35 which is connected to the larger cylindrical surface of the body portion ofthe roll by means of a beveled surface portion 3G. A ring 37 of such size as slidably to fit over the surface portion 35 is provided for each end of the compressor roll 33 and is interiorly beveled, as indicated at 38 for the purpose of engaging snugly against the beveled surface 36 of the compressor roll 33. If desirable, an addi tional ring 39 may be provided for each end of the compessor roll and is adapted to be disposed slidably and concentrically about the ring 37. The rings 37 and 39 lare constructed in substantially the same manner.A

It is to be understood that any convenient number of rings may be applied concentrically over the end surface 35 of the compressor roll, according to the relative degree of tension that itis desired to impose upon the cord strands before they are directed into the loom. i

The operation of the mechanism above described is as follows: The compressor roll 33 is moved upwardly by the force of the counter-weight against the cords 19 as they are wound upon the rotatable member 11. The maximum pressure is exerted by the compressor roll along the cylindrical surface of the larger diameter thereof, while the'end surface portions 35, during the first several convolutions of the cord winding,

are radially spaced from the edge cords, thereby permitting` the latter to be wound relatively loosely. Accordingly they will be built up higher than, or with a Vgreater diameter than, the central web portion of the fabric lmaterial on the' loom beam. In order to regulate the degreeof looseness of the edge or selvage cords, the ring37, and if desired, the ring 39, is slipped over the surface portion of the compressor roll after the selvage portion of the tcord material has been built up to the desired height. 26 and 27 permits the roll to be moved out of engagement with the cord material and to be positioned in spaced relation thereto while the rings are being applied to the ends of the compressor roll or While the loom beam is being dotted.

From the foregoing description, it willv be apparent that by the use of my invention an improved fabric material may be manufactured, which is especially adapted to be incorporated in pneumatic tire casings, rand that the device embodying my invention possesses the important commercial requi' sites of structural simplicity and inexpensiveness from the standpoint of economic manufacturing.

Although I have illustrated but one form which my invention may assume andv have described in detail but a single application thereof, it will be apparent to those skilled in the art, that it is not so limited but that various minor modications and changes The pawl and ratchet mechanism lil!) liu CII

may be made therein Without departing from the spirit of my invention or from the scope of the appended claims.

What I claim is:

1. A compressor roll for loom beams comprising a cylindrical member provided with end portions of lesser diameter than the body of the cylindrical member.

2. A compressor roll for loom beams comprising a cylindrical member provided with reduced end portions and removable means adapted to be disposed over the reduced end portions for varying the diameter thereof.

.reduced end portions and a plurality of concentric annular members of smaller 'diameter than the cylindrical member removably mounted upon each Areduced end portion. I

6. The combination with a loom beam) provided with flanges for guiding fabric strands thereon of a compressor roll adapted to fit between the flanges to compress the strands of fabric against the loom beam and means provided on the com ressor rolli permitting the outer edge stran s adjacent the anges of the loom beam to be wound loosely thereon while the interior fabric. strands are wound tightly thereon.

7. The combination with a loom beam provided with flanges for guiding warp fabric 'strands thereon of a compressor roll disposed between the flanges of the loom beam for pressing the fabric strands thereon, said compressor roll being provided with portions tightly compressing the warp strands centrally upon the loom beam and provided withportions loosely engaging the strands adjacent the flanges of the loom beam. f y

8. -The combination with a loom beam provided with yflanges for guiding warp fabric strands thereon of a compressor'roll disposed between theflanges of the loom beam for compressing the fabric strands thereon, said com ressor roll being provided with reduced en portions and removable annularA members adapted' to be disposed over the reduced end portions for varying the diameters thereof.

9. The combination with a loom beamt provided with flanges for guiding warp fabric strands thereon disposed between the flanges of the loom beam of a compressor roll dis osed between the flanges of the loom beam or compressing the fabric strands thereon, said compressor roll being provided with reduced end portions and removable annular members of less diameter than the compressor roll disposed over the reduced end portions. n

In witness whereof, I have hereunto signed f my name.

LINDSAY S. HALL.

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