Improvements in Axle Boxes for Railway Wagons and Carriages.
Year: 1888

page_text: Date of Application, 14th July, 1888
Complete Specification Left, 8th Apr., 1889
Complete Specification Accented, 8th June, 1889
PROVISIONAL SPECIFICATION.
Improvements in Axle Boxes for Railway Wagons and Carriages.
I, WILLIAM BIRD, of 5 Alpha Terrace, Normanton Common, Normanton, in the
County of York, Clerk, do hereby declare the nature of this Invention to be as
follows:-
It consists in improvements in the slide, and in the manner of fitting the brass
bearing, which greatly facilitate the removal of the axlebox for repairs &c. To
accomplish this, I form the grooves of the slide in such a manner, that the upper half
of the groove upon one side, and the lower half of the groove upon the opposite side,
forn segments of a circle of a diameter corresponding with the distance between the
two inner edges of the axle guard upon which the slide works; the effect of this
is, that a quarter revolution of the axlebox upon the axle suffices to carry the flanges
of the slide clear of the edges of the axle guard, from between which it is then readily
withdrawn. To further facilitate this, retain the brass bearing in its position at
the top of the axlebox by means of a couple of flat springs attached to the inside of
the axlebox, below it.
Dated this 12th day of July 18ss
JOHN HENRY TOPHAM,
46A, Market Street, Manchester,
Agent to Applicant.

page_text: COMPLETE SPECIFICATION.
Improvements in Axle Boxes for Railway Wagons and Carriages.
I, WILLIAM BIRD, of 5 Alpha Terrace, Normanton Common, Normanton, in the
County of York, Clerk, 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 :→
It consists in improvements in the slide, and in the manner of fitting the brass
bearing, which greatly facilitate the removal of the axlebox for repairs &c.
To accomplish this, I form the grooves of the slide in such a manner, that the
upper half of the groove upon one side, and the lower half of the groove upon the
opposite side, form segments of a circle of a diameter corresponding with
the distance between the two inner edges of the axle guard, upon which the slide
works; the effect of this is, that a quarter revolution of the axlebox upon the axle
suffices to carry the flanges of the slide clear of the edges of the axleguard, from
between which it is then readily withdrawn. To further facilitate this, I retain the
brass bearing in its position at the top of the axlebox by means of a couple of flat
springs attached to the inside of the axlebox, below the brass bearing.
In order that the foregoing may be better understood, I send herewith a sheet of
Drawings in which :-
:-
Fig. 1 shows a front view of an axlebox and axleguard a indicating the axlebox
and the axleguard, the dotted lines cc show the shape of the grooves of the
slides d d.
If the axlebox is freed from the wagon spring e and revolved in the direction
shown by arrows f f it assumes the position shown in Fig. 2 when it is readily
withdrawn.
In Fig. 3 is shown the method of securing bearing brass g in position by means
of flat springs h h.
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
1st. The peculiar formation of the slides of an axlebox, substantially as described
and shown hereinbefore and in the accompanying drawing for the purpose set-forth.
2nd. The method of securing the bearing brass of an axlebox, substantially as
described and shown hereinbefore and in the accompanying drawing for the purpose
set-forth.
Dated this 6th day of April 1889.