US366632A

US366632A - Edward d

Info

Publication number: US366632A
Authority: US
Publication date: 1887-07-12
Anticipated expiration: 1904-07-12

Description

(No Model.)

B. D. MACKINTOSH.

MEANS FOR LUBRIGATING THE BEARINGS 0F UPRIGHT SHAFTS. No. 366,632. Patented July 12, 1887.

UNITED STATES PATENT OFFICE.

EDXVARD D. MAGKINTOSH, OF BROOKLYN, ASSIGNOR TO PAUL PRYIBIL,

' OF NEYV YORK, N. Y.

MEANS FOR LUBRICATING THE BEARINGS OF UPRIGHT SHAFTS.

SPECIFICATION forming part of Letters Patent. No. 366,632, dated July 12. 1887.

Apr lication filed Novcmher16. 1886. Serial No. "218,904. (No model.)

To aZZ whom it may concern.-

Be it known that I, EDWARD D. llIACKIN- T0sH, of Brooklyn, in the county of Kings and State of New York, have invented a new and useful Improvement in Means for Lubricating the Bearings of Upright Shafts, of which the following is a specification.

My invention relates to means which provide for the constant and automatic lubrication of the bearirgs of upright shafts or spindles while such shafts or spindles are in motion.

In carrying out my invention I provide upon the shaft an oil well or cup, which surrounds the shaft and is secured thereto, and which has an inwardly projecting flange at the top to prevent the oil from being thrown out by centrifugal force. This oil well or cup may be advantageously formed in the upper portion of a pulley secured to the shaft. I also provide a fixed bearing, which is above the oil well or cup, and an oil tube or conduit, which is fixed relatively to the bearing and which leads from a point near the inner circumfcrence of the oil well or cup to the bore of said bearing. The shaft will usually be formed with a journal portion having a downward taper fitting the said bearing, and the oil tube or conduit above referred to will communicate with the bore of the bearing near the lower end thereof. The taper form of the bearing and journal portion of the shaft will cause the oil,which is delivered to the bore of the bearing near its lower end, topass upward between the journal and the bearing, and at the upper end of its bore the said bearing is constructed with an internal groove or channel for receiving the oil, and from which a return conduit or passage leads to the lower end of the bearing for returning the oil to the oil well or cup. I also provide in the oil well or cup a supply-tube, which extends from the outer periphery of said well or cup inward considerably beyond the inner circumference thereof. By means of a suitable oilcr the oil may be introduced through such a supply oiltube, and, the tube being horizontal, the appearanceof oil in the tube will indicate that the oil well or cup has received a sufficientsupply. To balance the spindle and pulley,

as well as to provide provision for supplying oil to the well or cup'in different positions where the spindle may be stopped, I provide two supplytubes arranged diametrically opposite each other in the oil well or cup.

The invention consists in novel combina tions of parts, which are hereinabove referred to, and which are hereinafter fully described, and pointed out in the claims.

In the accompanying drawings, Figure 1 is an elevation of a portion of an upright shaft and a sectional view of a bearing and pulley embodying my invention, also including a see tional view of a step-bearing for the shaft, and Fig. 2 is a horizontal section on the plane of the dotted line a; m, Fig. 1.

Similar letters of reference designate corre sponding parts in both figures.

Adesignates the lower-portion of an upright spindle, which has, as here represented, a downwardlytaperingjournal, A, to thelower end of which is fitted a step-bearing, B. No particular description is needed of this stepbearing, as my invention in nowise relates thereto.

(J designates an oil well or cup which surrounds the shaftand is secured thereto so as to rotate therewith. In the present example of myinvention this oil wellor cup Gisformed integral with and at the upper end of the pulley G, which may be secured to the shaft, and which receives a belt (not here shown) whereby the shaft is driven.

D designates a fixed bearing, to the bore of which the taperjournal portion A of theshaft A is fitted, and which is here shown as above the oil well or cup 0 and extending downward thereinto.

Inserted in the oil well or cup C are supply or filling tubes 0, which are arranged at diametrically-opposite points, and which extend from the outer periphery of said oil well or cup to a point considerably inward of the inner cireumference thereof. Oil may be supplied through thcse supply or filling tubes 0 to the well or cup 0 by means of an ordinary oiler, and the tubes are arranged at such distanees above the bottom of the well or cup that when the oil appears in them. flowing outward the attendant will know that the oil well or cup 0 has received asuflicient supply. A single tube, 0, might be employed; but I diametricallyner circumference of the upright wall of the well or cup, and in which position it will be thrown by centrifugal force as soon as rotary motion is applied to the spindle or shaft A. The tubes projectinward sufficiently to prevent the oil from being thrown out through them by centrifugal force, and the oil well or cup Ohas at the upper end an inwardly-projecting flange, c, which prevents oil from being thrown out of the well or cup by centrifugal force.

The fixed bearing D is provided with an inlet oil tube or conduit, d, which leads from a point near the inner circumference of the well or cup 0 to the bore of the bearing. In this example of my invention the tube or conduit dis formed by boring a radial hole in the flange d at the lower end of thebearing D, and the tube or conduit d leads to the bore of said bearing very near the lower end thereof. The centrifugal force in the oil within the well 0r cup O, which is produced by the rotation of the shaft, will force oil inward through the tube or conduit (2 to furnish'a copious supply for the bearing D, and by reason of the taper form of said bearing and the journal portion A of the shaft the oil delivered to the bore of the hearing at its lower end will be caused to rise in the bearing and will be received in the annular channel'or groove (2 formed in the bore of the bearing near its top. From this annular channel or groove d a return conduit or'passage, d, conveys the oil to the bottom of the bearing and delivers it into the oil well or cup 0, so that the lubrication of the bearing is effected automatically and without any ma terial waste of oil.

What I claim as myinvention, and desire to secure by Letters Patent, is

1. The combination, with an upright shaft and an oil well or cup surrounding and secured to the shaft and having an inwardly-projecting flange at the top to prevent oil from being thrown out by centrifugal force, of a fixed bearing for the shaft and an oil tube or conduit fixed relatively to the bearing and leading from a point near the inner circumference of the oil well or cup to the bore of said bearing, substantially as and for the purpose herein described.

the spindle or and an oil well or cup with an upright shaft surrounding and secured to the shaft and having .an inwardlyprojecting flange at the top, of a bearing for the shaft constructed with an oil tube or conduit leading from a point near the inner circumference of the well or cup to the bore of the bearing,near the bottom thereof, and with a return-conduit leading from the upper portion of the bore of the bearing to the oil well or cup, substantially as herein described. 3. The combination, with an upright shaft and an oil well or cup surrounding and secured to the shaftand having an projecting flange at the top, of a fixed bearing constructed with an-oil tube or conduit lead ing from a point near the inner circumference of the oil well or cup to the bore of the bearing, near the lower end thereof, and also constructed with a groove in the upper portion of its bore, and a return conduit or passage leading from the groove to the oil well or cup, substantially as herein described.

4. The combination, with an upright shaft having a downwardly-tapering journal, A,

2. The combination,

and an oil well or cup surrounding and secured to the shaft and having an inwardly projecting flange at the top, of the fixed hearing D, entering the well or cup and constructed with the inlet tube or conduit d, leading to the lower portion of its bore, and with the groove or annular channel d and return conduit or passage d", substantially as herein described.

5. The combination, with an upright shaft and an oil well or cup surrounding and secured to the shaft and having the filling-tube 0 extending inward from its exterior to a point beyond its inner circumference and the inwardly projecting flange c at its top, of a bearing constructed with an inlet tube or conduit leading from a point near the inner circumference of the well or cup to the lower portion of the bore of the bearing, and also constructed with a return conduit or passage leading from the upper portion of its bore to the, oil well or cup, substantially as herein described.

6. The combination, with the shaft A, having the taper journal A, and the pulley constructed at the upper end with an oil well or cup, 0, of the bearing D, above the well or cup, constructed with the 'inlet tube or conduit d, and with the groove 01 and return coir duit or passage d, substantially as herein described.

EDVVARD D.

Witnesses:

' FREDK. HAYNES,

HENRY J. MCBRIDE.

MAOKINTOSH.

inwardly-