US408859A

US408859A - Centrifugal lubricator

Info

Publication number: US408859A
Authority: US
Publication date: 1889-08-13
Anticipated expiration: 1906-08-13

Description

UNITED STATES PATENT OFFICE.

PHILIP M. SHARPLES, OF WEST CHESTER, PENNSYLVANIA.

CENTRIFUGAL LUBRICATOR.

SPECIFICATION forming part of Letters Patent No. 408,859, dated August 13, 1889. Application filed January 10, 1839. Serial No. 295,950. (No model.)

T0 at whom it may concern: j

Be it known that I, PHILIP M. SHARPLES, a citizen of the United States, residing at Vest Chester,in the county of Chester and'State of Pennsylvania, have invented certain new and useful Improvements in Centrifugal Lubricators; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters and figures of reference marked thereon, which form a part of this specification.

My invention relates to means for lubricating rotating shafts by passing the liquid lubricant repeatedly through the bearing.

I am aware that lubricants have heretofore been pumped back to the point of supply; but the object of my invention is to efiect a continuous circulation in a novel yet simple and effective way.' The principle consists in utilizin g the centrifugal force with which the lubricant tends to fly away from the surface of my invention.

Figure 1 is a sectional elevation of a vertical shaft and bearing involving my invention. Fig. 2 is a section through X Y of Fig. 1. Fig. 3 shows a form of collar which may be conveniently used. Fig. t is a sectional elevation of a horizonal shaft and bearing of equivalent construction, and Fig. 5 is a crosssection of the bearing through V W of Fig. 4. Fig, 6 shows another modified form.

The vertical shaft a passes through the bearing 0, which is represented as simply a bushing pressed into a frame or bracket A. The end thrust of the shaft is carried on a step. (Not shown.)

The collar 1) may be a separate piece, as

shown in Fig. 3, the bore being slightly smaller than the diameter of the shaft and the split permitting it to be forced snugly onto the latter. The bearing is recessed at the bottom, as at f, to a size slightly larger than the collar, and a gland 70, which is a loose fit on the shaft, is'screwed up into the lower end of the bushing until its face (1 is close to but not in 0011- tact with the lower face of the collar 1). An axial groove (Z in the bearing extends from an' oil-receptacle h at the top to the recess f, and a hole 8, forming a second passage from the recess to the oil-receptacle, opens into the former at the farthest possible point from the center.

.The oil, being supplied at 7L, passes downward through the groove (1 in contact wit-h the shaft and falls upon the upper surface of the collar 1). The latter rotating with the shaft, the oil caught upon it is thrown. by the centrifugal force against the wall of the recess f. The closeness of the collar to this Wall, and also to the top surface q of the gland 7:, prevents it from escaping below the collar, as its contact with the lower face of the latter throws it outward again, and its only outlet is up .Ward through the passage 6 to the starting point h.

In the horizontal j ournal-bearing shown in Figs. 4; and 5 the essential features are substantially the same as above described. The cap-piecem contains the oil-receptaclep,w11ie11 communicates with the horizontal groove d by a hole 0*, and a parallel hole 5 returns the oil from the recess f, as indicated by the arrows.

Fig. 6 shows a variation from the construction illustrated in Fig. 1. The collar 1) is in this case shaped like the frustum of a cone, with the larger diameter arranged to face the oil-passages d and e. The recess f, which corresponds with the shape of the collar, is independent of the bearing, being formed in a flange t, which is secured to the lower end of the bearing or of the frame or bracket A. The oil caught upon the collar cannot escape downward without also moving toward the center in opposition to the centrifugal force, and is therefore compelled to take the outlet e.

I do not limit myself to the construction described, as other modifications may be de vised Without departing from the spirit of my invention. It is evident, also, that if: the return-passagee be omitted my device is still valuable, as the lubricant will be retained in the groove (Z by the diflicnlty of workin past the collar 1) and great economy be effected though a circulation be not maintained.

lVhat I claim is- 1. The combination,With a rotary shaft provided with a collar, of a bearing having a recess for said collar and an oil-groove (1 entering the same, said recess closely surrounding the collar and extending inward toward the center of the shaft, substantially as and for the purpose set forth.

2. The combination, with a rotating shaft provided with a collar, of a bearing having a