US2045946A - Pattern card cylinder for jacquard looms - Google Patents

Description

June 30, 1936.

H. v. FOSTER 2,045,946

PATTERN CARD CYLINDER FOR'JACQUARD LOOMS Filed April 25, 1955 ooomoooooooo 7/- oooooooooooo i, ooooooeooooo eooo-ooooogoo Patented June 30, 1936 PATENT Price PATTERN CARD CYLINDER FOR JACQUARD LOOMS Herbert V. Foster, Providence, R. I, assignor to Crompton & Knowles Jacquard & Supply Company, Pawtucket, R. I., a corporation of Massachusetts Application April 25, 1935, Serial No. 18,096

3 Claims.

This invention relates to Jacquard looms and more particularly to the cylinders by which the pattern cards are successively presented to the jacquard needles.

In the operation of such looms, it is essential that accurate alignment of the cards and needles be maintained at all times, as otherwise an incorrect fabric may be woven. It has been found difficult to maintain such accurate alignment when the cylinder gudgeons become worn, and the repair or replacement of a worn cylinder has been a matter of considerable diificulty and. substantial expense.

It is the general object of my invention to provide improvements in the construction of pattern card cylinders for Jacquard looms, by which improvements the useful life of a cylinder may be indefinitely prolonged at negligible expense, and by which improvements worn cylinders can be cheaply and easily restored to satisfactory operative condition.

My invention further relates to arrangements and combinations of parts which will be hereinafter described and more particularly pointed out in the appended claims.

A preferred form of the invention is shown in the drawing, in which Fig. 1 is a front elevation, partly in section, showing a portion of a jacquard cylinder and bearing embodying my improvements, and

Fig. 2 is an end elevation, looking in the direction of the arrow 2 in Fig. 1.

Referring to the drawing, I have shown a portion. of a jacquard cylinder I having a gudgeon I I fixed in each end thereof. Commonly the cylinder I0 is formed of wood and the gudgeons I I are firmly secured therein.

The cylinder I0 is provided with the usual alignment members I2, one at each corner of the cylinder and cooperating with a pressor member I3 yieldingly forced downward by a spring I 4 and effective to hold the cylinder accurately in some one of its four operative positions.

In the preferred construction of my invention, I provide each gudgeon II with a closely fitting sleeve 20 which may be secured to the gudgeon by a collar 2| fitting over the sleeve and having a set-screw 22 threaded in the collar and extending through an opening in the sleeve toengage the gudgeon II. The sleeves 20 are preferably formed of hardened steel and are accurately finished both inside and out.

Each sleeve 20 extends into an anti-friction bearing, shown herein as of the roller type and comprising rollers 31] mounted within a hardened outer ring or runway 3| which in turn is mounted in a casing 32. The casing 32 preferably contains a chamber 33 which may be supplied with lubricant through a suitable pressure connection 34. This lubricant provides efiicient lubrication for the roller bearing.

The casing 32 fits closely in an opening 35 in a bearing member 36 and may be secured therein by a set-screw 37 and lock nut 38. The bearing member has a bolt and slot connection with a bracket or stand it which in turn is bolted to the jacquard slide shaft, not shown.

The bearing member 38 may be vertically adjusted relative to the bracket -50 by means of an adjusting screw 42 and nut 43, said screw being threaded in an oifsetprojection 44 at the upper end of the bearing member 36. After being vertically adjusted, the bearing member may be secured in adjusted position by a clamping bolt 45.

With this construction, it will be. evident that the cylinder I0, gudgeons I I and sleeves ZII rotate as a. unit within the rolls or other suitable anti-friction members. The life of the cylinder is greatly prolonged for the following reasons:

In the first place, it has been found impractical to provide hardened gudgeons for wooden pattern cylinders and consequently the gudgeons have been subject to relatively rapid wear. With my improved construction, there is no wear on 30 the gudgeons themselves and the hardened sleeves 20 are adapted to resist wear for a long period of time. If, however, a sleeve 20 becomes worn, it may be readily removed and replaced at trifling expense, after which the cylinder is practically as good as new.

Furthermore, I find that the sleeves 20 may be applied to the worn gudgeons of cylinders already in use, as these gudgeons are commonly worn only in certain places and have a sufiicient portion of the original contour to accurately center the sleeve thereon. Consequently the restoration of worn cylinders may be accomplished at greatly reduced expense, as compared to the cost of the previous restoration.

If the rolls 30 or rings 3| should become worn, these parts also may be replaced at slight expense.

I have thus improved the construction and operation of pattern card cylinders in Jacquard looms and have provided a construction by 5 which repairs may be cheaply and easily accomplished when the same becomes necessary.

Having thus described my invention and the advantages thereof, I do not wish to be limited to the details herein disclosed, otherwise than 55 as set forth in the claims, but what I claim is:-

1. In a Jacquard loom, a pattern card cylinder having end'gudgeons, a sleeve for each gudgeon, means to detachably secure said sleeves on said gudgeons and to permit convenient removal and replacement of said sleeves, and an anti-friction bearing surrounding and supporting each sleeve. 2. In a Jacquard loom, a pattern card cylinder having end gudgeons, a sleeve for each gudgeon having a transverse opening therethrough, a collar surrounding each sleeve and having a setscrew extending through said transverse opening and engaging the associated gudgeon, and an sleeve, and means to removably secure each bear- 10 ing in operative position.

HERBERT v. FOSTER.

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