US526026A - Journal-bearing - Google Patents

Description

(No Model.)

D. J. DAVIS. JOURNAL BEARING.

No. 526,()26 Patented SepAt. 18. 1894.

DANIEL J. DAVIS, OF CHICAGO, ILLINOIS.

JOURNAL-BEARING.

SPECIFICATION forming part of Letters PatentNo. 526,026, dated September 18, 1894.

Application filed February 1,1893. Serial No. 4601590- (No model.)

.To @ZZ whom it may concern,.-

Be it known that I, DANIEL J. DAVIS, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Journal-Bearings, of which the following is a full, clear, and exact description, which will enable others to make and use the same, reference being had to the accompanying drawings, forming a part of this speciication.

This invention relates to improvements in journal boxes or bearings, and has for its object to provide a iiexible bearing that is more especially intended for use in connection with centrifugal separating machines.

In the drawingsz-Figure l is a brokenaway vertical section; Fig. 2, a longitudinal section of a bearingsleeve, and Fig. 3 a broken-away plan of a journalcap. p

A represents a sectional broken-away top part of a pedestal or frame, supporting the Working mechanism of a centrifugal separator. This top part of the frame is provided centrally with an opening a, surrounded by an annular bearing-neck A', screw threaded exteriorly as at a', and forming a part of the journal bearing or box.

The journal-cap B (Figs. 1 and 3) is screwthreaded interiorly, as at a2, and engages with the correspondingly threaded neck A. This journal-cap is provided centrally with an opening o3, through which the bearing-sleeve C is inserted, the respective ends terminating above and below the journal-bearing, as shown in Fig. 1. The lower end of this sleeve is provided with an oil-cup a4, and the upper end with the inverted cup or detlecting surface a5, having the spherical surface a, The sleeve C is provided with the bearing-collar or shoulder b having the annular groove b. The adjacent surface of the neck A is also provided with a recess or groove b2. The elastic, flexible bearing-ring D fits into these grooves; the concave surface h3 of the journal-cap also bearing against a part of the surface thereof. The ring D may be composed of rubber or other suitable material. Ordinarily the j ournal-cap B was secured in place by a number of tap-bolts arranged at intervals and inserted through the flangepart d thereof. This was objectionable for thev reason that it was impossible, in setting up the bearing, to adjust the screws alike, and the result was that the driving-spindle would be inclined a little from a true vertical position. The speed at which the spindle is driven-usually from six to eight thousand revolutionsmakes it necessary that the bearing be so constructed as to permit of a nice adjustment, and the spindle maintainedin a true vertical position. By the arrangement shown, the journal-cap has a continuous and uniform pressure on all sides alike and is always set evenly so that the bearing is adj usted to a nicety.

The annular space between the bearingsleeve and the adjacent surrounding surface, provides for a little play of these parts so that the driving-spindle will always assume acentral, vertical position.

The sleeve C is provided interiorly with a continuous spiral groove b4, running from end to end, and incloses the vertical spindle or shaft Ebroken away at both ends. The separater-bowl (not shown) is loosely mounted on the upper end, and the lower end seated in the usual step-box, forming the lower journal-bearing. The journal-box shown forms the upper bearing for the separator spindle.

An oil-reservoir F is located just outside of the vertical part of the frame and has an oilpipe g leading therefrom and discharging into the oil-cup 01.4 formed on the lower end of the bearing-sleeve. The lubricant reaches the interior of the sleeve C through one or more apertures g and following the spiral groove insures a continuous lubrication of the driving-spindle.

The waste oil, working out at the upper end of the bearing-sleeve, passes to the spherical surface of the inverted cup and drops into the annular channel g2, formed in the upper side of the journal-cap, and escapes through apertures g3 therein to the annular channel hin the upper side of the frame and is finally carried off through drip-pipeh.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

l. In a journal-bearing, a sleeve provided on its exterior withan annularly grooved collar and at its lower end with an oil-cup, and in its interior with a continuous spiral groove IOO ' and openings leading from the oil-cup into the sleeve, in combination with a frame surrounding the lower portion of the collar and having an exteriorly threaded bearing-neck, a journal-cap screwed onto the said neck, and a yielding bearing-ring interposed between the said collar frame, and journal cap, substantially as described.

2. In a journal-bearing, a sleeve provided on its exterior and intermediate its ends with an annularly grooved collar, and at its upper end with a defiecting surface and at its lower end with an oil cup, and in its interior with a continuous spiral groove and openings leading from the oil cup into the sleeve, in combination with a frame surrounding the lower portion of the collar and DANIEL J. DAVIS.

Witnesses:

L. M. FREEMAN, L. B. COUPLAND.

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