Improvements in Axle Boxes for Railway and like Vehicles.
Year: 1897

page_text: Date of Application, 11th June, 1897
Complete Specification Left, 19th Nov., 1897-Accepted, 29th Jan.,
1898
PROVISIONAL SPECIFICATION.
Improvements in Axle Boxes for Railway and like Vehicles.
EDWARD HOWGATE, Moss Villa, Napier Road, Wembley, Middlesex, Surgeon,
do hereby declare the nature of this invention to be as follows:-
:-
The shield recess in axle box is constructed having openings at the sides per-
mitting the removal of the half shields or segments of same for the purpose of
renewal or adjustment these openings being usually closed by plates or suitable
covers which may also form surfaces for the springs or similar apparatus for
closing the shields or segments to work upon.
In lieu of the above mentioned shields or segments the recess may be packed
tightly round the axle with waste cotton, hair, wool or other suitable materials,
discs, being provided, on each side, to retain such packing if desirable.
100x
EDWARD HOWGATE.
1, EDWARD HOWGATE, of Moss Villa, Napier Road, Wembley, in the County of
Middlesex, Surgeon, 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:
The invention relates to the construction of axle box dust shield chambers and
lust shields in segments or other suitable packing for use in the chambers, so con-
structed, as to enable the shields to be manipulated, inserted or exchanged, whilst
the axle box is on the journal or axle in running position.
It consists in constructing the chamber B, Figure 1, in the axle box A having
openings at the sides of such chamber permitting the introduction, examination,
or removal, of the adjustable dust shields, or packings, C and D, the openings
being closed by suitable removable covers G, and H, after the packing or pack-
ings have been placed in position in the chamber B. The bottom of the chamber B,
is constructed preferably having its lowest surface at the point N, so that any
excess of lubricant runs down the inclines L, and returns to the lubrication
chamber through the port N. Figure II is a sectional view of the chamber B
showing shield segments C & D), surrounding the axle I and the port N
forming a communication between the chamber B and the lubrication chamber
of axle box A.
Figures III and IV are two views of a suitable form of dust shield segments
I preferably use. The spring or springs F keeping the packing up to the journal,

page_text: It
adjusting the wear of the shield and absorbing shocks. Spiral springs may be
utilised in place of, or to augment the laminated spring F, shown. Figure V
shows the chamber-B in the axle box A charged with any suitable elastic or like
packing P which may consist of hair, cotton or similar suitable materials.
may be desirable where the fibre or packing materials are liable to work between
the axle and chamber walls to introduce the guard diaphragms or plates a
and a. It is obvious that in some cases it may be desirable to construct the
chamber with four openings and covers, thereby enabling segments of dust shields
or packing to be introduced from the top or bottom of the chamber in addition
to or in place of introducing same at the sides as herein before described. The
shield chamber described may, except the covers, be cast in one piece with the
axle box.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what I
claim is:-
--
"
1. The construction of axle box dust shield chambers substantially, as described,
and shown.
2. The novel form of self adjustable dust shields for use in such dust shield
chambers as described and the removability, insertion, or examination of such
shields and the like without lifting the vehicle or removing the wheels, axle-
guards or axle box from running position for these purposes.
3. The use of fibres or other similar packings and the like in axle box shield
chambers in lieu of the ordinary dust shields and facilities for attending to such
fibre and the like packings as described and shown.
1
$
4. The construction of the dust shield chamber having the bottom inclining
to a port or ports for the return of excess lubricant to lubrication chamber and
method of access to such shield chamber by the removal of cover or covers.
5. The construction of the axle box and dust shield chamber as described and
shown having greater strength to resist the fracture of axle box at its weakest part
the substitution of the solid parts at top of chamber giving greater strength than
if the opening to such chamber was from the top as is usual in axle boxes for
rolling stock.
Dated this Nineteenth day of November One thousand eight hundred and
ninety cowon
EDWD. HOWGATE.