US2493151A

US2493151A - Warp beam

Info

Publication number: US2493151A
Application number: US752360A
Authority: US
Inventors: Levers William Hague; Baines Richard Henry
Original assignee: Celanese Corp
Current assignee: Celanese Corp
Priority date: 1946-06-27
Filing date: 1947-06-04
Publication date: 1950-01-03
Anticipated expiration: 1967-01-03

Description

n- 3, 1950 w. H. LEVERS ET AL 2,493,151

WARP BEAM Filed June 4, 1947 /n veno/Ls W/I-LEVERS H- B/l/NES Affornegs Patented Jan. 3, 1950 WARP BEAM William Hague Lovers and Richard Henry Baines, Spondon, near Derby, England, assignors to Ceianese Corporation "of America, a corporation of Delaware Application June 4, 1947, Serial No. 752,380 In Great Britain June 27, 1946 1 Claim.

This invention relates to improved warp beams. Warp beams are required to accommodate greater or smaller widths of warp according to the width of fabric it is intended to produce, and are frequently provided with flanges which have to be fixed in position by means of wedges and wood screws. Such flanges are not easily adjustable and require a considerable time to set. Moreoven-conthiual setting and re-setting damages the wooden beam and finally renders it unflt for further use.

The present invention is concerned with an improved type of flanged beam in which the flanges are adjustable and can be set quickly and easily to provide for any width of warp, within limits dictated by the construction of the beam. Moreover, damage to the beam by setting and resetting the flanges is greatly reduced and the life of the beam therefore considerably increased.

Warp beams in accordance with the present invention are provided with movable flanges making a sliding fit on the beam and held against outward displacement by means of studs fittin securely in holes spaced along the beam. One or more series of holes may be provided extending longitudinally along the beam at each end, and the studs are inserted in holes appropriate to the width of warp to be prepared. Advantageously the holes may be tapped and the studs screwed in.

Preferably, if a wooden beam is employed, that portion of the beam in which the holes are provided is made of or covered with metal. For example, metal plates may be inserted in the beam in the position in which the holes are required or each end of the beam may be provided with a metal sleeve, the surface of which is flush with the wooden surface of the beam between the inner ends of the sleeves. Rotation of the flanges may be prevented by set screws in the bosses of the flanges.

By inserting studs in the appropriate holes the distance between the flanges can be adjusted to provide for warps of difierent widths, but when ordinary flanges are employed this arrangement does not permit of fine adjustment of the distance between the flanges, and a further important feature of the present invention is to provide for this flne adjustment. This is effected by forming theouter edge of the boss of one or preferably both flanges, i. e. the edge which bears against the set studs, in the form of one or more cams, so that on rotating the flange against the studs the position of the flange along the length of the beam can be slightly varied. In this way, by appropriate rotation of one or both flanges, any

size of warp within the limits laid down by the positions of the inner and outer stud holes in each end of the beam can be provided for. If it is objectionable for the warp ever to be slightly on centre, both flanges should have a cam or cams with a throw at least equal to the distance between the centres of adjacent stud holes. If on the other hand it is not objectionable for the warp to be slightly off centre in some cases, it is sufficient that one flange only should have a. cam or cams with such a throw, or that both flanges should have a cam or cams with a throw equal to half the distance, or if desired between half and the whole distance, between adjacent stud holes.

The stud holes may be arrangedin any suitable way. For example they may be arranged in two rows diametrically opposite each other along the beam, or in four rows at angular distances of round the beam. The cams on the boss of each flange should correspond in number and position with the rows of holes and all the cams should be identical. Thus, when two rows of holes at the opposite end of a diameter are em-- ployed the cams may be in the form of two half helices.

The invention is illustrated in the accompanying drawing, which shows in side elevation one end of a warp beam with an adjustable flange.

In the particular construction illustrated a metal sleeved beam l is provided with two diametrically opposite rows of equally spaccd tapped stud holes 2, into which studs 3 can be screwed.

The holes in each row are spaced 1 inch apart. Sliding on the beam is a flange 4 comprising an outwardly facing boss 5 carrying a set screw 8 which, when tightened against the surface of the beam serves to prevent the flange rotating.

' The outer edge of the boss 5 is machined to form -two identical cams l on opposite sides of the boss, each cam having a throw of inch.

To set the beam for a given width of warp the flanges at both ends are first given a rough adjustment .by inserting the studs 3 in the appropriate holes and are then held against the studs and rotated until the necessary fine adjustment has been made. The set screws 6 arethen tightened against the surface of the beam.

Having described our invention, what we desire to secure by Letters Patent is:.

A warp beam provided with movable flanges making a sliding fit on the beam and having outwardly facing bosses the outer edges of which are each formed into at least two identical cam surfaces, the said flanges being held against outmoans:

. 3 4 ward displacement by means of studs adapted to engage the said cam surfaces and screwed into "m mm identical parallel sets 01' tapped holes spaced along The 1 711118 references are or record in the the beam, the several sets of holes being equally file of this patent: spaced around the beam at each end, one stud 5 m and one set of holes being provided for each cam STATES PATENTS surface and the said flanges being held against Number NW Date rotation by set screws in the bosses engaging 907,761 Evmn Dec. 29, 1908 the surface of the beam, the throw of the in- 1347984 Mellon July 2'1. 1915 dividual cams being equal to at least halt the 10 M 9 Balthasar May 23. lm distance between the adjacent holes in each set, Howard Dec. 2a, 1937 WILLIAM HAGUE LEVERS. RICHARD HENRY BAmlEB.