US1400318A - Loom - Google Patents

Description

E. D. ROY.

LOOM.

APPLICATION FILED MAR. 25, 1918.

Patented Dec. 13, 1921.

UNITED STATES PATENT OFFICE.

LOOM.

Application filed March 25, 1918.

To all whom it may concern:

Be it known that I, EDWARD DAVID ROY, a citizen of the United States of America, and a resident of Greenville, county of Greenville, State of South Carolina, have invented certain new and useful Improvements in Looms, of which thefollowing is a full and clear specification.

This invention has relation to that type of loom which employs a rocking protector shaft underneath the lay. An objection heretofore existing to the manner in which the protector rocker shaft is journaled lies in the fact that the bearings in the sword soon become worn and render the loom 1nefiicient in operation. The adjustments of the bearings to take up the wear properly have been impossible in the structures heretofore in use, and, furthermore, a part of the wear occurs upon the sword structure, thereby rendering repairs impossible and requiring that the sword structure be junked when the Wear becomes so great as to render the loom seriously inefficient. Another obj ection is that, by reason of the location of the bearing of this protector shaft, lubrication of the bearing is difficult and troublesome. My invention is adapted to overcome these troubles.

In the draWi11g Figure 1 is a side elevation of a portion of a loom showing my invention applied thereto;

Fig. 2 is a vertical section on the line 2-2 of Fig. 1;

Fig. 3 is a detail perspective view of one of the bearing-brackets; and

Fig. 4 is a vertical section on the line H of Fig. 1.

In the drawing, a designates the usual protector rock-shaft journaled in a bearing A at one end, a bearing B midway its length, and still another bearing at the other end of the lay, this latter bearing not being shown in my drawing. Bearing A consists of a bracket Z) attached to the sword structure at a point underneath the lay a. In the present instance, I have shown this bracket as bolted to the sword structure by means of a bolt (Z, but it will be observed that it may be supported in any suitable manner at a point underneath the protector-shaft a. This bracket is so attached to the sword structure that its upper face inclines upwardly and away from the sword structure, and upon this inclined face is fastened a bearing-block Specification of Letters Eatent.

Patented Dec. 13, 1921.

Serial No. 224,519.

6. The inner end of this bearing-block is grooved to partly surround the shaft a, and the sword structure is similarly grooved to receive the shaft, these two grooved surfaces forming a bearing for the shaft. The block e is made of wood boiled in oil, graphite and Japan wax to render it tough and durable as well as self-lubricating.

The self-lubricating block a is adjustably secured upon the bracket, so as to be ad justed inwardly toward the shaft from time to time to take up wear in the block; in the present instance, this adustability is provided for by means of a slot f formed in the bracket and a bolt 9 passing down through the block and said slot, side flanges it being formed on the bracket to hold the block 0 against lateral displacement. A bearing similar to this bearing A is intended to be located at the other end of the protector-shaft. The intermediate bearing B desirably consists of a plate I) bolted to the under side of the lay by a lag-screw g which passes through an enlarged hole in the selfoiling block 6 and a slot or hole 7" in the plate I), said plate 5 being provided with a depending lug i to form one of the halves of the shaft bearing, the block 6 forming the other half.

A feature of importance in my apparatus is that the bearing-blocks are self-oiling by reason of the impregnation therein of graphite and oil. This treatment of the box with wax, oil and graphite also renders it very tough and durable, practical experience with these bearing-blocks having shown that they seem to last a long while. A further feature is that, these blocks being softer than the metal part of the bearing, wear will occur upon the blocks and not upon the metal parts, thereby greatly prolonging the life of the loom structure. When the blocks wear out, they are very easily replaced, as is obvious. The cost of renewal is trivial, whereas the cost of renewing or repairing worn-out bearings in the present structure is considerable. I

The self-oiling feature is important. In the present instance, the bearings have to be frequently oiled and this is very troublesome because of the location of the bearings. Frequent oiling is necessary because of the numerous and very rapid operations of the protector-shaft, and furthermore the oil-impregnated bearing-blocks prevent the accidental oil-staining of the threads passing consequently smearing the adjacent parts with waste oil, which accidentally reaches the threads passing through the loom. This serious objection is avoided with the present invention.

The nature and scope of the invention having been thus indicated and its preferred embodiment having been specifically described What is claimed as new is:

1. In combination with the sword of a 100m having a bearing formed therein close below the lay-beam and adapted to support one side of the protector rock-shaft, an adjustable oil-impregnated bearing-block for signature.

the other side of said protector rock-shaft, the same being detachably secured to the sword opposite tothe bearing therein.

2. In combination with the sword I of a loom having a bearing formed therein close below the lay-beam and adapted to support one side of the protector rock-shaft, an adjustableself-oiling bearing for the other side of said protector rock-shaft, the same through said adjustable bearing-block and the adjusting slot of the bracket, and means for securely and adjustably locking the bolt and bearing-block in position;

In testimony whereof I hereunto aflix my EDWARD nAvIn ROY.

Images