US79238A - Improved axle-box - Google Patents

Description

1. s. LISTER.

Car-Axle Box. I

Patented June 23, 1868.

71 mg o .Zwvan/l'or gfiiirh ga I L STONE LISTER, or PHILADELPHIA, PENNSYLVANIA;

Lam-s Patent Nd; 79,238, elated James, '1868.

IMPROVED AXLE-BOX.-

.TO ALL WHOM IT MAY CONCERN: v

Be it known that I, I. SroNE LISTER, of Philadelphia, Pennsylvania, have invented certain Improvements in Axle-Boxes; and I do hereby declare-the following to be afull, clear, and exactdescription of the'same. I

I My invention consists in chambering'the bearing. of anaxle-box sogasto form, above'the journal, a reserv'oir for oil, which passes by its own gravity-through channels in the hearing tothe journahthe flow of oil from the reservoir being regulated by a screwvalve, all'as described hereafterl The object of my invention is to effectually lubricate the bearing, and at the same time economize the consnmption of oil. g V I In order to enable others skilled in the art to make and apply myinventio'n, I will now proceed to describe its construction and operatiomreferenfce being had to the accompanying drawing,-Which forms part of this specification, and in which- 1 I I Figure 1 is a vertical-sectional view of my improved axle-box.

Figure 2, atransverse section on the line 1-2, 1.

Figure 3, a section on the'line 3-4, fig. 1.

Figure 4, a sectional plan view on the line 5-6, fig. 1.

Figure 5, a detached View, drawn to an enlarged scale, and. illustrating a portion oi -my invention; and

Figure 6, aninverted-plan view of the journal-bearing.

A is the top, B the bottom, C the front, and D the bacl: of an axle-box of the shape, or approximating to the shape shown in the drawing. v

In the back Dis the usual circular opening for the admission of the end of the axle, and extending verti cally throughthe back, from the top to the bottom of the same, is an opening,'a,into which are inserted (abo've and below the axle) strips of leather packing, b and bl I A yoke, E, extends through the opening a, on each side of the packing, and passes beneath thestrip b, the

latter being raised and maintained in contact with the under.portion of the axle, on r aising the said yoke, by means of its nuts 0 c I is I The upper packing-strip b, which rests upon the axle, is prevented from rising by the nuts 0 c, which bear upon itsupper edge, and is prevented from moving laterally by a? pin, (1, which extends across .the opening a, :mdlpasses through a slot, at, in the strip, (see fig. 3.) g

The journal-bearing or brass, F, is introduced through'an-opening, 2', in the top; and through the front of the box, after removing the sliding door e and the said bearing is held in its place, and prevented from moving either longitudinally or laterally, by a projectiom f, on the top, and by projections 99 at the sides of the box, (see figs. 1 and 4.) t

The opening 2', above mentioned, extends across the top of the box, and is covered by an oil-reservoir, G, ofthe square or rectangular form shown in the d wing, the latter being secured to the bybolts jj, fig. 2, and having a hollow projection, is, screwed into the top of the journal-bearing F.

Extending through the bearing, and communicating with the hole in the projection, is, of the reservoir, is a channel, Z, in the bottom of which arethree or more holes,'m, through which, under the circumstances described hereafter, the lubricating-material from the reservoir passes tothe journal; and each of these holes commu= nicates with a diagonal groove, it, in'the'under face of the hearing, as shown in fig.'6 I

In the top of the reservoir, G, fig. 5, is a screw-plug, I, on removing which the reservoir may be filled; and. extending through the 'said plug, and communicating with each other, are a vertical and a horizontal passage,

' p and 10, for the supply of air to the reservoir, which supply, however, may be cut oft, to a greater or less extent,

by raising orlowering a screw or screw-valve, g, which passes through the top"of the plug.

In axle-boxes as heretofore constructed, the bottom of the box has served as a receptacle for the oil or other lubricating-material to be supplied to the journal, and thepacking in the back of the box-,has been arranged with a view of preventing leakage of the lubricating-material.

By this arrangement, when the reservoir is filled, more lubricating-material is supplied to the journal and its bearing than is'required, and a portion of it is wasted or lost by leakage and when the supply becomes low in the reservoir,- thejournal is not properly and'regularly oiled, if at all. i

These objections I overcome by the use of my invention, in which, as I will now proceed to describe, a. proper and constant supply of lubricating-material is fed to the journalfrom above, instead of froui below.

The oil contained in the reservoir, G,'ll0WS through the passage in the screwed projection 7:, into the 'ch'an nel' Z of-the bearing, and thence through the. holes m mm into the grooves 71, from which it is fed to the journal, the supply of air to the reservoir, and consequently the flow of oil from the same, being regulated by the screw valve g, fig. 5. If the latter be raised, communication between the passages}; and?" will be opened, air will enter the reservoir Gr, and the oil 'willflovt freely from the same to the journal; but if the screw-valve beclose'd, and the supply of air shut off, the oil cannot fiow'from the reservoir without producing a partial vacuum, and will therefore remain Within the same. It will thus be seen that, by adjusting the screw-valve properlyuthe flow of oil can-be regulated-to a nicety, and no more nor less than the proper quantity fed to the journal. 7

In some cases the reservoir Gr may be dispensed with, and a receptacle for oil formed in an enlargement of the channel I, or in a projecting portion of the bearing, the screw-plug I and its valve being then applied to thebearing instead of'to. the reservoir G.

The diagonal grooves n n n of the bearing prevent the clogging of the passages m, and insure an equal 'distribution of the lubricating-materialover the surface of the journal.

The only office ofthe packing-strips b and b in this case is to prevent'the admission of particles of dust to the interior of the box, and the consequent clogging of thegrooves n and passages m.

v I claim as my invention, anddesire to secure by Letters Patent- 1. A'bearing, arranged within an axle-box, above a journal, and having a chamber and channels leading from the same, through which oil may flow by its own gravity to the journal, all substantiallyfas and for the purpose described. I

2 The combination of the said chambered bearing with the oil-reservoir G. p 3. The plug L with its air-passages 1a and p, and regulating-valve q, in'combination with the reservoir G. In testimony whereof, I havesigued my name to this specification in the presence of two subscribing witnesses.

I. STONE LISTER.

Witnesses:

' Jomv W ITE,

H. SMITH.

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