US300029A

US300029A - John stephenson

Info

Publication number: US300029A
Authority: US
Publication date: 1884-06-10
Anticipated expiration: 1901-06-10

Description

(No Model) J. STEPHENSON.

Y OILINGfPAD EUR JOURNAL BOXES. No. 800,029. Padtnted .Imaan- 1 0i 1884.`

Miren Siufrrns PATENT OFFICE.

.roi-IN s'rnrHnNsoN, or NEW Yoan, N. Y.

bOILING-PAD FOR JOURNAL-BOXES.

SPECIFICATION forming part of Letters Patent No. 300,029, dated June 10, 1884.

Application filed May .'2, 158-1.

To @ZZ whom it may concern:

Be it known that I, JonNSrnrHENsoN, a citizen of the United States, residing in the city, county, and State of New York, have invented certain new and useful Improvements in Oiling-Pads for Journal-Boxes, of which the following is a specification.

My invention is an oiling-pad or lubricating device especially adapted for use in connection with that class of journal-boxes in which the bearing is above the journal, the said pad being constructed as fully described hereinafter, so as to maintain the lubricating material in contact with the axle, preserve the uniform surface of the pad, and prevent the undue wearing of the latter.

In the drawings, Figure 1 is a side elevation of my improved pad. Fig. 2 is a transverse section von the line l 2, Fig. 1. Fig. 3 is a perspective view of the pad. Fig. 4L is a perspective View showing a modification, and Fig. 5 is a transverse section of Fig. 2.

Among the methods heretofore employed for lubricating journals of axle-boxes it has been common to employ pads of felt or other fabric or absorbent material capable of holding oil in contact with the under side of the journal. The `practical difficulty in this class of lubricating devices has been the rapid destruction of the felt, especially when used in connection with new or newly-turned journals, the comparatively rough surfaces of which act with a rasping effect upon the felt and rapidly destroy the integrity of the pad, this result being facilitated when a spring is employed for fowrcing the pad up ward and holding it underpressure against the surface of the journal. I remedy this difficulty by inserting inthe contactsurface of the pad blocks, pieces, or strips of metal, preferably lead or other soft metal or composition, the faces of said metallic pieces being flush with and conformed to the bearingface of the pad, so that the latter presents a continuous surface in contact with the journal. rllhese metallic pieces serve, first, to prevent the face ofthe felt being forced so rmly against the journal as to cause the destructive rasping and wearing of the felt; and, further, they aid in the distribution of the 5 oil over the face of the journal; at the same time theylwear away with sufficient rapidity to compensate for the normal wearing of the felt, so that the surface (No model.)

of the latter cannot wear down below that of i the metal.

The felt pad may be supported in any suitable manner, and the strips may be of any desired shape and held in place by any suitable means. shown as supported by a metallic cradle, B, either consisting of two bent plates clamped together, as in Figs. l, 2, and 3, or of a castnietal trough with a central downwardly-projecting web, as in Figs. 4 and 5, in either case the cradle carrying the pad and supporting it below and in contact with the journal C, under the action of a spring, D, which bears against the bottom of the box I.

In Figs. l, 2, and 3 the metal blocks E are shown as consisting of strips extending lengthwise of the pad, or approximately thereto, and retained by the rivets. s. In Figs. 3 and4 each piece E is a curved block inserted in the felt pad and retained in place by screws passing through openings in the cradle andextending into the block. It is not necessary to form recesseszin the felt pad to receive the strips or blocks, as the latter will,when applied to the felt, sinl; into the latter as it expands on becoming saturated with oil. As the metal pieces are carried by the felt, and not by the cradle, they will conform to the movements of the felt, and thus be maintained in contact with the journal, even should the cradle get a little out of line.

Any suitable substitute for felt-as thick cotton material, porous paper, asbestus fibers, &c.-may be employed.

IVithout limiting myself to the precise construction and arrangement of parts shown, I clainil. An oiling -pad having in its contacting surface strips or pieces of lead or other material secured in the felt, with the surface in the same plane as that of the felt, substantially as and for the purpose described.

2. An oiling pad having metallic facing- In the drawings the felt strip A is v pieces and resting upon a spring-support,

IOO

pad carrying inserted pieces of soft metal, and of the pad, or approximately thereto7 substan- 1o a spring supporting the pad in Contact with tially as described. the journal7 substantially as described. In testimony whereof I have signed my name 5. The combination of the curved cradle supto this specification in thepresenee of two sub- 5 ported bya spring and pad of porous niateseribing Witnesses.

rial, and metallic pieces seeured to the pad7 JOHN STEPHENSON. substantially as described. Witnesses:

6. An oiling-pad having embedded in its sur- STUART A. STEPHENSON,

face strips of soft metal extending lengthwise WM. J. VALKER.