US236882A - Geoege w - Google Patents

Description

UNITED STATES PATENT OFFICE.

GEORGE W. FISHER, OF ST. LOUIS, MISSOURI.

LUBRICATING JOURNAL-BOX.

SPECIFICATION forming part of Letters Patent No. 236,882, dated January 25, 1881.

Application filed November l, 1880. (No model.)

To all whom it may concern Beit known lthat I, GEORGE W. FISHER, of the city of St. Louis, in the State of Missouri, have invented a cert-ain new and useful 'Improvement in Lubricating Journal-Boxes,

ot which the following is a full, clear, and exact description, reference being had to the accompanying drawings, Ina-king part of this specication.

improvement consists in combining with an upper box or cap obliquely grooved for the reception of a cotton wick or a capillarystring or cord a lower box having an oilrecess and wick-passages.

In the drawings,` Figure 1 is an upper perspective View of the lower box and an under perspective view of the cap. Fig. 2 is a top view of the lower box. Fig. 3 is a bottom View of the cap. Fig. 4 is a vertical section at angular line fr, Fig. 2.

I show and describe my improvement as applied to a pillow-block, but it is applicable to various forms of journal-bearings.

A is the lower member or base of the box, cast with an interior chamber, B, of any size and form suitable to contain oil. The chamber has two or more orifices at top, to allow the passage of cotton wicking C, or any other suitable string or cord that will act by capillary attraction to draw up the oil from the chamber B. The cotton wick or other lubricating device passes obliquely over the journal D, so as to lubricate a length thereof much greater than the thickness of the wick. The orifices or passages b are .so arranged on the opposite sides of the journal as to accommodate the oblique position of the wick.

E is the upper box or cap, made with an oblique groove, F, to receive the lubricatingwick O. In the form shown the groove F is cast in the box or cap with ribs f, forming, alike, the sides of recesses at e, cast in the box to receive Babbitt or other box metal which is cast therein; but I do not confine myself to this construction, as the groove F may be made in the box E after it has been otherwise finished, or a core may be laid obliquely around the upper half of the journal before pouring in the box metal, so that the proper groove would be formed in the box.

I am aware that it is not new to extend a wick transversely over the journal from an oil vessel or chamber beneath, and this I do not claim; but this device has objectionable features: first, its direct lubrication is confined to a narrow space on the journal; second, the oil does not readily diffuse itself along the shaft from the open groove containing the wick, and the oil is liable to leak out between the two boxes; third, the bearing is cut away in the cap or upper box all around the upper half of thejournal, and where the journal has any upward bearing it is liable to wear uneven. It will be seen that all these objections are obviated by my oblique arrangement ot' the wick and groove.

I claim as my invention- The combination, with the box E, provided with oblique groove F, of the lower box, A, having oil-recess B and wick-passages b b, arranged substantially as set forth.

GEO. W. FISHER.

Witnesses SAML. KNIGHT, C. H. BROWN.

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