Improvements in Oil and like Lubricating and other Cans.
Year: 1894

page_text: Date of Application, 7th Feb., 1894
Complete Specification Left, 6th Nov., 1894-Accepted, 8th Dec.,
1894
PROVISIONAL SPECIFICATION.
Improvements in Oil and like Lubricating and other Cans.
We, JOHN FRANCIS CARR, of the Firm of Carr and Ashford, Apollo Works,
Blews Street, Newtown Row, in the City of Birmingham, Engineer, and JOSEPH
FREEMAN, of 109 Monument Road, Ladywood, Birmingham aforesaid, Fitter, do
hereby declare the nature of this invention to be as follows:-
This invention relates to improvements in oil or like cans employed in the
lubrication of machinery and for other purposes.
The object of our invention is to construct a can that may be readily charged or
filled with oil or other liquid but from which the discharge of the liquid shall be
checked by the action of the external atmospheric pressure, until such pressure is
overcome by a greater internal pressure set up by a mechanical means or contrivance
at the will of the user or operator.
In carrying our invention into effect when constructing an oil can, to be employed
in the lubrication of machinery we construct the body or reservoir of the can of
any desired shape or configuration, from tinned iron plate or other suitable metal,
and provided with a handle and a spout or discharge nozzle. Upon the top of the
can we cut or form an opening into the interior, and over this opening we solder
or otherwise secure a brass or other socket, or ring, having a screw thread cut or
formed around its interior surface, suitable for the reception of the screwed plug
hereinafter described.
We form the cover or head for the opening by means of a brass or other plug,
screwed at its lower or underside to enter within the screwed ring or socket
attached to the oil can, and having a cap of india-rubber, gutta-percha, or other
suitable materiál secured to its upper or top side.
Within the cap we interpose a spiral or other spring between the underside of
the top of the cap, and the upper surface of the plug.
After filling our improved can with the required oil, through the opening on the
top side, we screw the head tightly within the socket to prevent admission of air.
Although the can may be tilted into position for pouring, yet the discharge of
oil will be prevented by the pressure of the external atmosphere acting through the
orifice of the spout or nozzle. When requiring to discharge a quantity of oil into
a bearing, or upon some other machine part, the can is tilted and the rubber cap
hereinbefore described, is pressed by the thumb of the operator thus causing the
interior spring to be depressed and air to be forced down from the cap into the
body of the oil can, at sufficient pressure to force out a quantity of the oil or
contained liquid.
We do not limit the application of our invention to oil cans, but adopt our
improvements for employment upon cans for containing other liquids, to be used for
varying purposes, making alterations in arrangement and details to suit the
requirements of particular services.
Dated this 6th day of February 1894.
MARKS & CLERK,
18, Southampton Buildings, London, W.C., and
13, Temple Street, Birmingham, Agents for the Applicants.

page_text: COMPLETE SPECIFICATION..
Improvements in Oil and like Lubricating and other Cans.
We, JOHN FRANCIS CARR, of the Firm of Carr and Ashford, Apollo Works,
Blew's Street, Newtown Row, in the City of Birmingham, Engineer, and JOSEPH
FREEMAN, of 109 Monument Road, Ladywood, Birmingham aforesaid, Fitter, do
hereby declare the nature of this invention and in what mauner the same is
to be performed, to be particularly described and ascertained in and by the
following statement :-
This invention relates to improvements in oil or like cans employed in the
lubrication of machinery and for other purposes.
The object of our invention is to construct a can that may be readily charged or
filled with oil or other liquid but from which the discharge of the liquid shall be
checked by the action of the external atmospheric pressure, until such pressure
is overcome by a greater internal pressure set up by a mechanical means or
contrivance at the will of the user or operator.
air
Referring to the accompanying sheet of drawings-
Figure 1 is an oil can according to our invention having a rubber ball to supply
pressure.
Figure 2 is a section of a modification of our invention in which the air is
displaced by a piston.
In carrying our invention into effect when constructing an oil can to be employed
in the lubrication of machinery we construct the body or reservoir A Figure 1 of
the can of any desired shape or configuration, from tinned iron plate or other
suitable metal, and provided with a handle and a spout or discharge nozzle. Upon
the top of the can we cut or form an opening into the interior, and over this
opening we solder or otherwise secure a brass or other socket or ring D, having a
screw thread cut or formed around its interior surface suitable for the reception of
the screwed plug hereinafter described.
We form the cover or head for the opening by means of a brass or other plug,
screwed at its lower or underside to enter within the screwed ring or socket D
attached to the oil can, and having a cap or hollow ball B of india-rubber, gutta-
percha, or other suitable material secured to its upper or top side. Within the
hollow cap B we interpose a spiral or other spring between the underside of the
top of the cap, and the upper surface of the plug.
After filling our improved can with the required oil through the opening on the
top side, we screw the head tightly within the socket D to prevent admission of air.
Although the can may be tilted into position for pouring, yet the discharge of oil
will be prevented by the pressure of the external atmosphere acting through the
orifice of the spout or nozzle. When requiring to discharge a quantity of oil into
a bearing or upon some other machine part, the can is tilted and the rubber cap B
herein before described is pressed by the thumb of the operator thus causing the
interior spring to be depressed and air to be forced down from the cap into the
body of the oil can at sufficient pressure to force out a quantity of the oil or
contained liquid.
Instead of a hollow rubber ball or cap B (Figure 1) we sometimes modify our
invention as shown at Figure 2 by substituting for the hollow ball or cap Ba
plunger acting in a cylinder or tube E. To fill the can we take out the
plunger C and open an air plug in the upper part of the body not shown in the
drawing. After filling we insert the plunger C'pushing it down to the spring F,
and then we screw in the air plug.
The plunger C we provide with a cup leather C. When the spout of the oil
can is directed to the place to be supplied with oil the plunger C is pressed inwards
and so the oil is discharged.

page_text: We do not limit the application of our invention to oil cans, but adopt our
improvements for employment upon cans for containing other liquids to be used
for varying purposes, making alterations in arrangement and details to suit the
requirements of particular services.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is :-
1. An oil or like can having a rubber or like hollow ball or cap which when
pressed increases the air pressure within the body of the can and so ejects the oil
or other lubricant, substantially as herein before described.
2. An oil or like can having a plunger and tube so arranged that when the
plunger is pressed the air pressure within the .body of the can is increased and so
the oil or other lubricant is ejected substantially as hereinbefore described.
MARKS & CLERK,
18, Southampton Buildings, London, W.C., and
13, Temple Street, Birmingham, Agents for the Applicants.