Improvements in Railway Vehicle Axle Boxes and Bearings.
Year: 1897

page_text: Date of Application, 17th Mar., 1897-Accepted, 15th May, 1897
COMPLETE SPECIFICATION.
Improvements in Railway Vehicle Axle Boxes and Bearings.
I, JACKSON ROE BAKER of Delaware Avenue, Jersey City, New Jersey,
U.S.A., Manufacturer, do hereby declare the nature of this invention and in what
manner the same is to be performed, to be particularly described and ascertained
in and by the following statement :-
In the accompanying drawing Fig. 1 is a vertical sectional view of the axle box
of this invention and Fig. 2 a section thereof shewing the journal or bearing
in plan.
a is the box which may be of any ordinary construction adapted to receive the
load of the vehicle in the manner common in railway vehicle construction, b an
ordinary axle for the wheels of the vehicle but preferably constructed without an
end collar or enlargement at the extremity of the axle or journal and with a loose
collar m at the shoulder 6. Within the box a is arranged between the axle or
journal and the top of said box, the brass c, key d, and intermediate bearing e the
said intermediate bearing and brass being provided with convex and corre-
spondingly concare bearing surfaces.
The key d and bearing e are arranged in permanent relation to one another and
to this end the latter is provided with a shouldered pivotted projection on the
upper side at the centre in line with the centre of the convexity (Fig. 2). This
projection is arranged in a central perforation in the key. The said key at said
perforation is countersunk or recessed forming a shoulder on which is placed a
washer g and the projection f is likewise shouldered to receive said washer. Said
projection and the bearing are bored out centrally forming an air and oil passage
therethrough which corresponds with the air passage in the brass, so that the oil
thrown up from the journal through said passage in the brass may work through to
the top of the part d and from thence into the joints between the parts a, d,
and d, e, by capillary attraction or otherwise. The boring allows of the metal
being turned at the extremity of the projection downward over the washer easily
to rivet the parts together. The pivotal projection f serves also to hold the parts
more prefectly in central relation one with the other so that the load is distributed
more evenly on the axle. The projection f allows of the pivotal movement of the
bearing piece whereby the latter may turn and accommodate itself to the brass and
key and prevent or reduce the binding of parts and torsional strain to the axle.
In practical operation a collar or flange at the extremity of the axle or journal
quickly wears into the journal bearing, reducing the bearing surface of the brass
and tends to induce a heating of the journal, and this construction is dispensed
with.
The loose collar m extends down into contact with the oil or waste within the
box and thus is more thoroughly and easily lubricated than the ordinary shoulder.
The collar also closes the box more thoroughly against the entrance of dust at the
opening for the journal.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-

page_text: having the convexity, a key d and an intermediate concave bearing having a pivot
extending up into the key, substantially as described and shewn.
2. The axle box or bearing in which are combined the box, brass, intermediate
bearing having a pivotal rivet, and washer g, all arranged and operating, sub-
stantially as described and shewn.
3. In combination with the vehicle axle having the shoulder 6', a journal box,
a brass arranged in said box and seated on said journal and carrying the said box
and its load, and a loose collar m also arranged in said box and lying between said
brass and the shoulder of the journal, the said collar projecting from the journal
-beyond the shoulder thereof, substantially as described and shewn.
Dated this 17th day of March 1897.
THOMAS R. SHILLITO,
89 Chancery Lane, London, W.C., Agent for the Applicant.