US2784920A - Warp beam - Google Patents

Description

March 12, 1957 a CRONLAND 2,784,920

WARP BEAM Filed y 8, 1954 INVENTOR: BLYTHE CRONLAND BY Zi E ATTORNEYS United States Patent WARP BEAM Blythe M. Cronland, Lincolnton, N. C.

Application July 8, 1954, Serial No. 442,163

4 Claims. (Cl. 242--124) This invention relates to an improved warp beam for use on looms, warpers, sizing apparatus and in fact in all places where a warp beam is used.

his an objectof this invention to provide a warp beam-in which-there is provideda hub member which is fixedly secured on each end of a shaft, said hub member having a pairof oppositely directed fiangeportions, one for receiving thewarp beam head andthe other for supporting the slats which make up the warp receiving surface.

It is another object of this invention to provide an improved warp beamhaving improved means for supporting the heads at each end of the Warp beam and improvedmeans for supportingthe slats at each of their ends and also an intermediate support for the slats ,thus providing a-rigid warp beam which will not get out of alinement and will not skew and having other new and improved 'features which provide a very rigid and long wearing warp beam.

Some of the objects of the invention having been stated, other objects-will appear asthe description proceeds, when taken in connection with the accompanying drawings, in which:

Figure 1 is an. end view of the warp beam;

Figure 2 is a side elevation of the beam'with a portion thereof broken away;

Figure 3 is a longitudinal sectional viewthrough the right-hand portion of the warpbeam as shown in Figure '2 and also the central portion thereof;

Figure'4jis-anisometric'view of one ofthecast metal heads or hubsfor supporting the slats and also for supporting the end members of the warp beam;

Figure 5 is-a vertical cross sectional View taken substantially alongline 55 in Figure 3;

Figure6 is an enlarged'detailed sectional view taken substantially along line 6-6-in Figure 3.

Referringrnore specifically to the drawings numeral 10indicates'a shaft which has each of its ends-projecting substantially from the head members so that it can be placed in suitable bearings such as on looms, warpers or the likeforsupportinga thebeam for rotation. Near each end of the shaft It) is secured a hubmember 11 by any suitable means such as set screws 12and integral with the hub member 11 is aplanar portion 14 which'has integral therewith a-first annular portion 15 which is provided with openings 16 so that a suitable tool can be inserted through these openings for manipulating the set screws 12 for securing the hub portion 11 on the shaft 10.

Adapted to fit over the annular portion 15 are head members 17 and 18 these being identical to each other and a description of the right-hand end of the beam will equally apply to the left-hand end. These end members 17 and 18 are preferably of laminated hardwood and the enlarged center opening in the heads 17 and 18 fitting snugly over the annular portion 15 gives a support which is much better than if the head members were fitted over the hub portion 11. The planar portion 14 has a larger second annular portion 20 extending in an opposite 2,784,920 Patented Mar. 12, 1957 openings each forreceiving one of the screws 22 to firmly secure the ends of the slats 21 to the annular portion 20. Each ofthe slats has a suitable tongue 25 on one side edge thereof which mates with a groove 26 in the next adjacent slat, each slat having a tongue 25 and a groove 26. The annular portion 20 has a plurality of threaded openings 27 for threadably receiving the screws or bolts 22.

On the exterior of the heads 17 and 18 are metallic plate members 30 and 31 and these have a central threaded opening which is threadably secured onto a threaded portion 32 of thehub members 11 and 11'.

A plurality of tie bolts or rods 33 are disposed in internal longitudinally extending grooves 34in some of the slats, therebeing preferably five of these elongated tie bolts which extend from one end of the beam to the other and each of which penetrates the head members 17 and 18 and the plate members 30 and 31 disposed on the exterior of the head members 17 and 18. It is noted that the plate members have their peripheral portions tapered, as at 35, which prevents any injury to adjacent warp beams when they are contiguous to each other during transportation.

At the central portion of the warp beam and mounted onthe shaft 10 is a pair of laminated disk members 40 and 41 each of which has a plurality of small holes 42 and 43 therein and each slat has countersunk bores 44 and 45 therein which merge into smaller bores 46 and 47 in which are positioned the Wood screws 48 and 49 which penetratethe holes 43 in the wooden disk members 40 and '41 for securing the medial portions of the slats 21 to the Wooden disk members 40 and 41.

The bores 44 and 45 have suitable plugs at 52 and 53 therein which are finished flush with the exterior surface of the slats 21 to provide a smooth unbroken surface for the exterior of the warp receiving portion of the warp beam.

The tie bolts 33 are elongated bolts preferably having a head 54 on one end and a nut 55 on the other end so that the nut 55 can be driven home to secure the head assemblies to the ends of the slats.

It is thus seen that there has been provided a warp beam which when assembled is very rigid in construction and allows no relative movement of parts and thus provides avery strong warpbeam which will last for many, many years without requiring any attention.

There are many advantages in a warper beam of the character disclosed herein as compared to Warper beams and the like currently in use. These advantages are as follows:

1. Since the plate members 39 and 31 are threadably secured on the threaded portions 32 of the hub members 11 and 11 and are held against the outer surfaces of the heads 17 and 18 by the tie bolts 33, the heads 17 and 18 are not only clamped between the corresponding plates 30, 31 and the respective planar portions 14, but the tie bolts 33 also insure that the warp wound on the barrel formed from the slot members 21 will not spread the heads 17, 18 apart from each other and the plate members corresponding head, within the area defined by the inner j periphery'of the barrel formed from the slat members 21, will not bow inwardly which has heretofore been the case as the result of the pressure of the warp wound about the beam pressing against the inner surfaces of the'portions of the head members disposed outwardly of the periphery of the barrel.

3. It has been the practice heretofore to mount head members on relatively small hub members which have been parts of the head supports heretofore employed. However, many textile plants are currently using relatively large beams as compared to those heretofore in use with the result that it has been extremely difficult to maintain the head members concentric with the barrel. However, by providing the outer annular portion 15, which is substantially enlarged as compared to the diameter of the hub 11, concentricity of the barrel relative to the head members is assured to a degree heretofore unobtainable.

It is well known that the larger the internal and external diameters of mating parts, the lesser the possible eccentricity between the mating parts with a given working tolerance between the mating parts, because of the greater interengaging surface area. This concentricity of the head member relative to the barrel is also further insured by the combination of the enlarged outer annular portion with the tie bolts 33, since the tie rods or tie bolts 33 insure that the head members 17 and 18 cannot rotate relative to the annular portion 15 of the head support nor can they rotate relative to the ends of the barrel. It is apparent that, if the head members 17 and 18 were permitted to work loose and rotate relative to the barrel formed of the slat members 21, the slat members would wear grooves in the proximal portions of the head members 17 and 18 and, since such beams of the prior art have been provided with a nut on the shaft, it would then be necessary to tighten the nm on each end of the shaft in order to take up the play between the head members and the ends of the barrel. It is also apparent that, if the head members 17 and 18 were permitted to rotate relative to the hub, as has-heretofore been the case, the bore in the head members would become worn and this would cause the head members to become eccentric relative to the barrel.

All of the above features result in a beam which is better balanced and has a longer useful life than beams heretofore in use.

In the drawings and specification there has been set and being of substantially larger diameter than the hub and on which the corresponding head member is fitted, a radially arranged planar portion against which the inner surface of the corresponding head member fits, said planar portion being connected to the inner end portion of the hub and the inner end of said outer annular portion, an inner annular portion connected to the planar portion and being of substantially greater diameter than the outer annular portion and about which the corresponding end of the barrel fits, the outer annular portion being of less length than the thickness of the corresponding head member, the hub projecting outwardly beyond the corresponding end of the outer annular portion, a plate member mounted on the hub and abutting against the exterior surface of the head member, and a plurality of circularly arranged tie rods extending through the barrel, the plate members and the head members for securing the head members to the outer surfaces of the planar portions of the head supports and for securing the head members tightly against opposite ends of the barrel.

2. A structure according to claim 1 wherein the barrel is provided with a plurality of longitudinally extending grooves formed in its inner surface, there being at least one of said grooves corresponding to each of said tie rods, and said tie rods being positioned exteriorly of the inner annular portion and extending longitudinally through the grooves formed in the inner surface of said barrel.

3. A structure according to claim 1 having a shaft of substantially the same diameter throughout its length and extending throughout the length of the warper beam and having its opposite end portions penetrating the hubs of the head supports, and means securing the hubs to said shaft.

In a warper beam having a barrel and head members connected to the opposite ends of the barrel; improved means for mounting each of the head members on the barrel comprising a relatively small hub, a radially arranged planar portion connected to the inner end portion of the hub, the inner face of the corresponding head member being positioned in abutting relation to the outer face of said planar portion, an outer annular portion connected to the outer face of said planar portion and being of substantially larger diameter than said hub and encircling the same, the corresponding head member being supported on the outer annular portion, an inner annular portion connected to said planar portion and being of substantially greater diameter than the outer annular portion and about which the corresponding end of the barrel is supported, the outer annular portion being of less length than the thickness of the corresponding head member, the hub projecting outwardly beyond the outer end of the outer annular member, a plate mounted on the hub and abutting against the exterior surface of the head member, and tie rods extending through the corresponding plate members and the head members for securing the head members to the outer faces of the planar portions.

Thornton Feb. 21, 1939 MacMillan Sept. 22, 1953

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