IMPROVEMENTS IN OIL CANS
Year: 1884

page_text: I AARON BRADSHAW of Griffin Works, Willows Lane Accrington in the County
of Lancaster Engineer do hereby declare the nature of my said invention for
"IMPROVEMENTS IN OIL CANS to be as follows:-
33
The object of this my invention is to provide improved valve arrangement and
to dispense with screw or other loose caps or covering for the filling or charging
aperture.
In any suitable part of the oil can I fix a valve seating, against which seating a
valve is pressed by means of a suitable spring inside oil can, so that the said valve
and seating when held together by means of the before named spring are air
and oil tight, the before named spring I keep in proper position by means of a
perforated tube fixed inside oil can. In the centre of the outer face of the before
named valve I form a stud or projection of such diameter and length that it extends
beyond the before named seating when valve is closed, by means of this stud the
valve can be opened by outside pressure and the oil or other liquid distributed as
desired, but when the before named valve is closed all communication betwixt the
atmosphere outside the oil can and the surface of the liquid inside the oil can
thereby preventing any discharge or leakage therefrom.
On the upper end of the before named seating inside, I form a suitable ledge and
when the oil can requires filling the stud or projection before named on outer face
of before named valve is pressed under the ledge before named inside upper end of
seating thus canting or tippling the valve on one side and so allowing the oil can
to be readily filled or charged and when it is desired to close the valve, the
projecting stud on face of valve is pushed off the ledge in seating and the spring
inside oil can then closes the valve.
:
In oil cans as before constructed the regulation of discharge has been accomplished
by means of delicate and complex mechanism liable to become deranged and so
cause a loss or waste of oil and the admission of oil was by means of holes fitted
either with screw nipples or slide valves the screw nipples are a source of loss and
trouble as they take up much time in screwing and unscrewing and the threads are
liable to get deranged and the screw nipples entirely lost thus leaving the charging
hole unprotected and when slide valves are used the loss of oil from the cans
becoming overturned is very great.

page_text: By these improvements the great evils before named are entirely prevented as
one air tight valve, serves to regulate the discharge and also allows the oil can to
be filled, the valve opens to the inside of oil can consequently is not liable to be
lost no screw is required to close the valve which is thoroughly air or oil tight
when on its seating hence there is time saved in opening and closing oil can, and
the oil can will not leak when overturned.
I AARON BRADSHAW, of Griffin Works, Willows Lane, Accrington, in the County
of Lancaster, Engineer do hereby declare the nature of my said invention for
"IMPROVEMENTS IN OIL CANS" and in what manner the same is to be performed,
to be particularly described and ascertained in and by the following statement
aided by the annexed drawings:-
The object of this my invention is, to provide improved valve arrangement, and
to dispense with screw or other loose caps, or covering, for the filling or charging
aperture.
Such being the nature and object of my said invention, the following is a complete
description of same, reference being had to the accompanying drawings, forming a
part of this specification, in which :-
Fig. 1 is an elevation of can part of side being removed to shew internal parts.
Fig. 2 is a view of valve open, for refilling can.
Fig. 3 is a plan view of Fig. 2.
Fig. 4 is a plan view of part of Fig. 1.
1 is the can, within which is the valve seating 2, secured to, or forming part of
the brass ferrule, or ring 3, which ring is soldered fast to the boss of the can, the
valve 4 is pressed upon its seating by means of the spiral spring 5, contained in
the tube 6, which has apertures 7 at its upper end, a part of the tube is broken
away at 8, to shew more clearly the spring 5.
The valve is shewn at Fig. 1, on its seating, and the supply of air to the can is
closed, and leakage or discharge from the can prevented.
To obtain flow of oil, the spindle 9 must be pressed down, or aside, by the thumb,
whereon, the valve is wholely or in part removed, from its seating, air is admitted,
and supply of oil obtained, on removal of the thumbs pressure, the valve closes as
before.
When it is necessary to refill the can, with oil, the spindle 9, must be pressed
down, and its end turned under the ledge or rim of the ring 3, canting or tippling
the valve on one side, as shewn clearly by Fig 2, in which position it will be held,
by the pressure of the spring 5, and oil will be poured in through the centre of the
ring at 10, and passing through the apertures 7, 7, or through a slit 11, at the seam
or junction of the tube 6, flows into the can 1, whereon the end of the spindle 9,
will be pushed off its holding ledge, and will by expansion of the spring, 5, resume
the position shewn at Fig. 1.
.

page_text: It will be seen that the valve, opens to the inside, consequently is not liable to
be lost, no screw or loose cap is required, to close the valve, which is thoroughly oil,
and air tight, when on its seating-time is saved in opening and closing the can
on refilling and leakage cannot occur, should the can be overturned.
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:-
The valve 4, having elongated spindle 9, operated or held to its seating 2, by the
expansion of the spiral spring 5, in combination- with the valve seating having
holding ledge, such as 3, and as herein fully described and illustrated by annexed
drawings.