US1186764A - Self-lubricating bearing. - Google Patents

Description

Patented June 13, 1916.

WITNEES' AiTORNEY WILLIAM H. FOOT, F 'WILKINSBURG, PENNSYLVANIA, ASSIGNOR T0 WESTINGHOUSE Y ELECTRIC AND MANUFACTURING COMPANY, A CORPORATION OF PENNSYLVANIA,

SZELIF-LUBRICA'JPING BEARING.

Specification of Letters Patent. Patented J 111mg 13 1916,

Application filed July 17, 1912. Serial No. 710,075.

To all whom it may concern:

Be it known that 1, WILLIAM- H. Foo'r, a citizen of the United States, and a resident of Wilkinsburg, in the county of Allegheny and State. of Pennsylvania, have invented a new and useful Improvement in Self-Lubricating Bearings, of which the following is a specification.

My invention relates to bearings and particularly to bearings for the upper ends of vertical shafts.

The object of my invention is to provide a self oiling vertical bearing which shall be simple and economical in construction and shall require little or no attention while in use. 1

My invention is illustrated in the accompanying drawing, Figure 1 of which is a vertical sectional view through a bearing constructed in accordance therewith, and

Fig. 2 is a plan and a transverse sectional view through the bearing.

The bearing comprises an annular cup 1 that is mounted upon and is rotatable with the upper end of a vertical shaft 2, the inner side wall of the cup being extended lip-- wardly somewhat beyond the outer side wall I and provided upon its outer face with anployed, the 'said extension supporting av bearing 9 that is interposed between it and the inner sidewall of the cup. The bearing 9 is provided with a Babbitt or other suitable metal bushing 10, and is secured in non-rotati-ve relation to the extension 7 by means of a pin 11. The upper end of the bearing 9 is also shaped to provide a chamber 12 surrounding the extendedrupper end of the inner side wall of the cup, and is further provided with a vertical passage 13 extendlng from end to end thereof and constitut-' ing an overflow outlet from the chamber 12 into the bottom of the annular cup, a boss 14 being provided in thebearing at the upper end of the passage in order to raise the upper end of the passage somewhat above the bottom of the chamber 12.

The extension 7 of the stationary member .of the machine is provided, at substantially diametrically opposite points, with vertical apertures for the reception of tubes 16, the lower j ends of which are screwed into slightly curved tubular arms 17. The outer ends of the arms 17 are adjacent to the inner face of the outer side wall of the cup and are shaped to serve as scoops for the oil which is thrown by centrifugal action against the outer side wall of the cup when the cup is rotated. The curved tubular arms 17 are oppositely directed so that the one or the other of them will serve as an oil scoop according to the direction of rotation of the shaft and the cup, and they are retained in proper operating position by means of stops 18 that are mounted upon the lower end of the extension 7. The upper ends of the tubes 16 are screwed into blocks 19 that are provided with vertical and transverse passages communicating wvith tubular vertical extensions 20 which project into the upper end of the chamber 12 and constitute outlets,

for the oil that is scooped by the arms 17 and forced to rise through the tubes 16 and into the passages in blocks 19.

The operation of the bearing will be readily understood from the drawing and the above description, the cup 1 beingrotated with the shaft 2, and the one or the oil scoop for collecting oil and causing it to be earned/upwardly into the chamber 12. From the chamber 12, the oil finds its. way downwardly back into the cup between the bearing and the inner side wall of the cup, and, if an excess of oil collects in the chamber 12, it may freely overflow into the cup through the passage 13. The bearing is thus self oiling, and, by reason of'its peculiar other of the tubular arms 17- serving as an construction, requires substantially no attention. Moreover, a sufiicient flow of oil is insuredirrespective of the direction of rotation of theshaft. r I

I claim as my invention:

1. A self oiling vertical bearing comprising an annular cup, a bearing engaging the inner face of the inner side walls of the cup,

tively movable, said arm having one end ad-, acjent to the inner face of the outer sidewall of the cup, and means providing communication between the other end of the arm and the said chamber. v

2. A self. oiling vertical bearing comprising an annular cup, a bearing engaging the inner face of the inner side wall of the cup,

the said parts being shaped to form a chamber at the upper end of the bearing and the bearing being provided with an overflow passage leading from the said chamber, a tubular arm with respect to which the cup is relatively movable, said arm having one end adjacent to the inner face of the outer side wall of the cup, and means providing communication between the other end of the tubes and the said chamber.

3. A self oiling vertical bearing comprising an annular cup, a bearing engaging the inner face of the inner side wall of the cup,

a chamber at the upper end of said bearing formed by the said cup and the said'bearing,

I and means for delivering oil from the cup to the said chamber.

7 4:. A self oiling vertical bearing comprising an annular cup, a bearing engaging the inner face of the inner side wall of the cup,

a chamber at the upper end of said bearing formed by the said cup and the said bearing, oppositely directed oil scoops within the cup and means providing communication between the oil scoops and the said chamber.

In testimony whereof, I have hereunto subscribed my name this 26th day of June, 1912.

. WILLIAM H. FOOT;

Witness es: I

EDWIN DENHAM, B. B. Hmns.

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