US150419A

US150419A - Improvement in oil-guards for shafting-boxes

Info

Publication number: US150419A
Authority: US
Publication date: 1874-05-05
Anticipated expiration: 1891-05-05

Description

c. E. Hou.

. Di-Grds'for Shafting-Bnxes. 10.150,419, Patented May 5,1874.

j NNMJSSQB r www/XM:

rfm, @M wm' 9 NITED STATES PATENT FFICE.

CHARLES E. HOLT, O F SOMERVILLE, MASSACHUSETTS.

IMPROVEMENT IN OIL-GUARDS FOR SHAFTINGQBOXES.

Specification forming part of Letters Patent No. 150,419, dated May 5, 1874 application filed March 4, 1874.

Figure l is an isometrical perspective view' of a box fitted with my improved guards or retainers. Fig. 2 is a vertical longitudinal section of the same. Fig. 3 is a sectional View. Fig. 4 is a plan of the chamber. Fig. 5 is a side elevation of the retainer and its spring.

Like letters refer to like parts in the diiferent figures of the drawing.

My invention relates more especially to boxes used with shafting running at a high rate of speed; and consists of a novel construction and arrangement of the parts, as hereinafter more fully set forth-and claimed7 the object being to furnish a simple and effective means of preventing the waste of oil.

The extreme simplicity of my invention renders an elaborate description unnecessary.

In Fig. l, A is the body or bearing of the box, and B B' the guards or retainers, provided on their upper edges with diagonal grooves c c and chutes d d, inwardly inclined, as better seen in Fig. 2. The guards B B are -each attached to an elliptic spring, f, Fig. 5,

the ends of which rest upon the ledges g g, Figs. 2 and 3, and are kept in position by the pin F and screw E, Figs. l and 3. The body of the box A is transversely grooved at each end to admit the guards, the grooves opening into the chamber D, as seen in Figs. 2 and 3, which chamber is formed by the cup G, Fig. 4. attached to the lower part of the box A, and

serves to catch and preserve any surplus oil which nds its way between the guards and box into said chamber. The grooves in which the retainers B B are disposed are also provided with short auxiliary grooves a a, Figs. l and 3, into which the pins e e project from the guards, and by which and said pins the retainers are prevented from turning with the shaft, as will be clearly obvious.

From the foregoing the nature and operation `of my invention will be readily understood by all conversant with such matters.

A shaft being mounted in the box A, the Yguards B B will be forced downward to a level with the-interior surface of the box, the springs f acting expansively to keep them constantly in Contact with the shaft. As the shaft revolves, the oil taken up will have a tendency to run along the shaft beyond the box and thus be wasted, this tendency being greater or less in proportion to the speedl of the shaft. To obviate this difficulty Imake use of the guards or retainers B B, which, be ing fitted to conform to the shaft and pressing closely against it, prevent the oil from liowing beyond the box, the grooves c d acting as Scrapers to catch the surplus oil and return -it to the box to be again used.

Having thus described my invention, what I claim is- 1. Ina shafting-box, the spring-retainer B, provided with inwardlyinclined channels c d, for catching and conducting the oil to the reservoir, constructed and arranged substantially as specified.

2. In a shafting-box, the combination of the retainer B,with its inclined grooves c d, channel D, and cup C, substantially as and for the purpose set forth.

CHARLES E. HOLT. Witnesses:

C. A. SHAW, H. E. METCALF.