US179938A - Improvement in car-axle boxes - Google Patents

Description

, the car, keeps the GEORGE W. MILTIMORE, OF-JANESVILLE, YVISGONSlN.

IMPROVEMENT IN CARS-AXLE BOXES.

Specification forming part of Letters Patent N o.

E79,938, dated July 18, 1876; application filed May 1, 1876.

To all whom-it may concern:

Be it known that I, GEORGE W. MILTI- MORE, of Janesville, Rock county, State of isconsin, have invented a new and Improved Ga-r-Axle, of which the following is a speclcation The accompanying drawin g represents a vertical central sect-ion of my improved car-axle.

My invention relates to such improvements in thatelass of' car-axles ary inner and a revolving outer wheel, carrying axle or sleeve, are employed, that the lubrication of the journal-box from the oil-resis accomplished, to the exclusion of dust, the drip-oil collected, and the journalbox allowed to oscillate on the stationar i axle to conform itself to a true bearing throughout, according to the spring of the axle produced by the weight of the car.

The invention will rst be described, in connection with the drawing, and then pointed out in the claims.

In the drawing, A represents the stationary axle, which is rigidly connected with the spring or pedestal bearers or boxes B by horizon tal locking-pins a. C is the revolving' outer axle or sleeve, which is made of a laterallyconnecting Wrought-iron section, with end lips andwheel-ca-rrying sections cast thereon. The

p journal-box D revolves with the sleeve on the stationary axle, and is lubricated from an airtight oil-reservoir, E, ofthe pedestal-box, the reservoir being connected with the journal-box by a horizontal channel, b, and a vertical downward-extending channel, b', of the stationary axle. The vertical channel b extends above the horizontal channel, and feeds the oil, by a vibrating and spring-acted pin, d, to the journal. The contact of the feeder-pin with the revolving journal-box, during the motion of )in continually in motion, and admits, thereby, the entra-nce of small quantities of air into the channels, and through the same to the oil-receptacle.

The vibratory motion of the feeder-pin furnishes thus, mechanically, a small air-supply t0 the oil-receptacle, and allows, thereby, the feeding of a corresponding quantity of oil, which increases or decreases in proportion to the speed. When the car is at rest the oil ducts or channels are filled with the oil, but

in which a statica the air-supply is discontinued, as the feederpin is Ialso in a position of rest, and supplies no air, so that the oil is held suspended by the partial vacuum in the oil-receptacle, and prevented i'rom running out. The surplus oil of the journal-box passes out through a closing nut or cap, F, screwed to t-he sleeve and encircling` the a-xle. An annular rimor bead, e, oi" the cap F, conveys the drip-oil into a chamber or receptacle, B', of the pedestalbox, below the axle, from where it may be drawn oi't1 by a screw-plug. An oil-tightjoint is formed between the pedestal-box and stationary axle by a tapering cork-disk, j', washer1: ing the oilfrom passing in or out between the pedestal-box and axle. A loose steel collar or ring, 71 is placed on thc stationary axle, between the pedestal-box and the revolving screw-cap ofthe ou ter axle to provide for the wear caused by the lateral motion of the car, which is taken up between the pedestal-block and screw-cap at that point.

The journal-box D is made with a central convex part, and slightly downward inclined o1' tapering end parts. rlihc outer axle or sleeve rests thereon by a corresponding annular concavity, and an outer ring, i, of iron, brass, or other material. The sleeve and ring are arranged, adjoiningl to the annular concave parts, with slight outwardly-inclined parts which form, with the tapering ends of the journal-box, narrow annular spaces that provide for the oscillating motion of' the j0urnal-box, when the weight of the car causes the springing ofthe inner axle. The journalboxl is, thereby, always in full contact throughout'its entire length with the inner axle, and compelled to wear out evenly.

The lubrication of the car-axle is accomplished in an economical mann-u', and the wearing out of the journal-box diminished, by distributing the friction throughout the length and circumference of the box, in consequence of the oscillating` motion of the journal-boxes.

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

l. The combination, with the of the stationary axle, having a cork disk, washer, and hollow screw-plug, to form an pedestal-box,

and perforated screw-plug f2, prevent-- oil-iightjoint between the pedestal-box and axle, lQnbsscantinlly as herein shown and dcscribed. f

2. The combination of the closing screw mit or cap ofthe outer revolving,` nxl el or sleeve Said can having an outer rim or bend, with :L drip-oil chamber below the stationery axle, Substantially as herein shown and described.

3. The combination of the revolving jonrnal-box, having :L convex annular part. mid tapering ends with the annular conczwed and inclined revolving sleeve, and intermediate ring, to provide for the oscillating motion of thejournzil-box, substantially as herein shown l.ind described.

4. The outer axle or sleeve, made of a. lat'.- erzi-l wrourjli-iron section, and cast-iron end sections, substantially as herein shown and described.

GEORGE W. MLTIMORE.

\Vitnesses T. Be Ilieennr., A LEX. F. ROBERTS.

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