Improved Axle Box Cover or Oil Cup for Vehicle Wheels.
Year: 1894

page_text: Date of Application, 24th Apr., 1894
Complete Specification Left, 24th Jan., 1895-Accepted, 2nd Mar., 1895
PROVISIONAL SPECIFICATION.
Improved Axle Box Cover or Oil Cup for Vehicle Wheels.
I, JOHN ANDREW GARVIN, of Castledawson, in the County of Derry, Ireland,
Grocer, do hereby declare the nature of this invention to be as follows:-
The object of my invention is an improved axle box cover or oil cup, the
construction of which admits of that end of the axle journalled in the wheel to
which it is secured being lubricated without necessitating the removal of said cap
or oil cup.
In carrying my invention into practical effect I form an opening in the centre of
an axle box cover or oil cup of the usual shape, and secure one end of a short tube
therein so that said tube projects outward beyond the surface of the cover or
oil cup.
Fitting into this tube and capable of being secured thereon by means of a bayonet
joint or the like, is a cap or hood through an opening in the centre of which slides
a short pin or rod provided with a suitable head on its outer or that end projecting
beyond the surface of the cap or hood.
On the inner ends of this pin or rod a washer of leather, rubber or the like is
held between two suitable nuts or rings screwing onto or otherwise secured to
said pin or rod, said washer and nuts or rings being of such diameters and
80 arranged that the edge of the washer is pressed against an annular seating
formed in the interior of the short tube near the inner end thereof when the
cup is secured in position by a coil spring placed on the pin or rod between
the top of the cap or hood and the washer farthest from the inner end of the
pin or rod.
It will thus be seen that when the cap fitting on to the short tube is secured
in position the lubricant will be prevented from escaping from the interior of the
axle box cover and by removing said cap fresh lubricant may be supplied to the
interior of the axle box cover through the opening in the centre thereof.
"1100
Invention
CASTLE SMITH,
Office, 54, Fleet Street, London, E.C.,
Agent for the Applicant.
Improved Axle Box Cover or Oil Cup for vehicle wheels.
1, JOHN ANDREW GARVIN, of Castledawson, in the County of Derry, Ireland,
Grocer, 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 object of my invention is an improved axle box cover or oil cup the
construction of which admits of that end of the axle journalled in the wheel to
which the cover is secured being lubricated without necessitating the removal of
said cover or oil cup.
In carrying my invention into practical effect I form an opening in the centre

page_text: of an axle box cover or oil cup of the usual shape and secure one end of a short
tube therein, so that said tube projects outward beyond the surface of the cover or
oil cup.
Fitting on to this tube and capable of being secured thereon by means of a
bayonet joint or the like, is a cap or hood carrying, in an opening in the centre
thereof, a short pin or rod provided with a suitable head on its outer or that end
projecting beyond the surface of said cap or hood.
On the inner ends of this pin or rod a washer of leather, rubber, or the like,
is held between two suitable nuts or rings screwing on to, or otherwise secured
to, said pin or rod, said washer and nuts or rings being of such diameter and
so arranged that the surface of the washer is pressed against an annular seating
formed in the interior of the short tube near the inner end thereof when the
cup is secured in position by a coil spring placed on the pin or rod between
the top of the cap or hood and the ring or nut farthest from the inner end of the
pin or rod.
And in order that my invention may be more fully understood and carried into
practice will now proceed to describe the same with reference to the accompanying
drawings, of which Fig. 1 is a front elevation; Fig. 2 a side elevation; Fig. 3 a
side sectional elevation, and Figs. 4 and 5 details of an axle box cover constructed
according to my invention.
Secured to, or forming part of, the face of the cover a is a tube or tubular piece b
provided on its inner end, which opens into the interior of the cover, with an internal
seating or flange c.
A cap d preferably of the form shown in plan and sectional elevation Fig. 4 fits on
to the projecting portion of this tubular piece and may be secured therein by a
bayonet joint, or other means. This cap carries in an opening in the top thereof a
pin e (Figs. 2, 3 and 5) provided on its outer end with a head of such size that it
cannot pass through the opening in said cap.
This pin is normally held in such position that it projects as far as possible into
the interior of the cap by a spring placed upon it, so that its ends press respectively
against the inner surface of the top of the cap, and against a washer g held in position
on the inner reduced end of the pin by a nut h.
Between the washer 9 and the nut a washer k of leather, rubber or the like,
is so held that, when the cap d is secured in position, its surface is pressed against
the seating c in the inner end of the tube by the action of the spring f.
When, therefore, the cap dis secured in position the opening in the face of the
cover is effectually closed by the plug formed of the pin e, washers g, k and
nut; whilst by removing said cap, the opening in the cover may be utilized for
supplying oil or other lubricant to the interior of the cover, thus obviating its
removal.
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 :-
Au axle box cover, or oil cup having a tube or tubular piece communicating
with its interior projecting from the surface thereof on to which fits a cap carrying
a spring-actuated plug which when the cap is in position closes the passage through
the tubes to the interior of the cover substantially as and for the purpose described
and illustrated in the accompanying drawings.
Dated this 24th day of January 1895
CASTLE SMITH,
Invention "Office, 54, Fleet Street, Loudon, E.C.,
Agent for the Applicant.
" Invention
"
CASTLE SMITH,
Office, 54, Fleet Street, Loudon, E.C.,
Agent for the Applicant.