IMPROVEMENTS IN OIL-CANS USED FOR LUBRICATING MACHINERY
Year: 1884

page_text: I, GUSTAVUS ADOLPHUS JOHN SCHOTT, Manufacturer, of West End Mills,
Richmond Road, Bradford, in the County of York do hereby declare the nature
of my invention for "IMPROVEMENTS IN OIL-CANS USED FOR LUBRICATING
MACHINERY" to be as follows:-
This invention relates to oil-cans used for lubricating machinery, and more
especially to that class containing a valve for checking the outflow, which is
operated by the person using the can pressing down the valvespindle, which
projects from the can. My invention consists firstly in the means or method of
filling the can, which is effected by way of an aperture in the top of the can,
which can be closed by a metal cap fixed to the top of the can by a hinge.
This cap contains a spring pressing upon a washer or disc of metal covered with
leather, or other suitable material, which when the cap is placed over the aperture,
closes the same hermetically.
The cap is held in the position closing the aperture as aforesaid by a second
spring or catch, fixed to the top of the can until it is released by the said spring
or catch being pushed back or out of contact with the cap, when the latter may be
lifted off the aperture.
The second part of my invention refers to the means of hermetically closing the
opening by which the valvespindle enters the can, when the can is not being used,
so that no oil may escape from the can by way of the said opening. When the can
is being used, it is necessary, that air should enter in order to allow the oil to flow
out of the spout when the valve is opened, but when the can is not in use, it is of
advantage that it should be hermetically closed, so as to prevent the liquid from
escaping. For this purpose I cause the valvespindle to enter the can through &
stuffing-box, which though giving admission to the valvespindle, prevents leakage.
The upper part of the valvespindle, including that portion thereof which slides in
the stuffingbox I construct of a hollow tube having two holes or apertures, one
about /, inch below the other and which are so placed, that when the valvespindle
is pressed down and the valve open, both these apertures are out of the stuffing-
box, the upper aperture being above the stuffingbox and outside the can, whilst the
•

page_text: lower aperture is below the stuffingbox and inside the can. By way of these two
apertures and the hollow tube there is thus air communication between the inside
and the outside of the can, and the air being able to enter allows the oil to flow out
of the can through the valve opening and the spout. But when the down pressure
upon the valvespindle is removed, and the same is pushed upwards into its normal
position by the usual spring the lower aperture by which the air entered the can,
whilst the valve spindle was pressed down as described, is thereby pushed out of
the can and into the stuffing-box. The air communication between the inside
and the outside of the can is thus cut off and the escape of liquid from the can
by the stuffingbox or the valvespindle effectually prevented.
Dated this fifth day of February 1884

page_text: I, GUSTAVUS ADOLPHUS JOHN SCHOTT, Manufacturer, of West End Mills
Richmond Road, Bradford, in the County of York do hereby declare the nature
of my invention for IMPROVEMENTS IN OIL CANS USED FOR LUBRICATING
MACHINERY and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement :-
This invention relates to Oil Cans used for lubricating Machinery and more
especially to that class containing a valve for checking the outflow, which is
operated by the person using the Can pressing down the valvespindle which
projects from the Can. My invention consists firstly in the means or method of
filling the Can, and that the same may be the better understood I make reference
to the accompanying drawings Fig. 1 & 2 which are vertical sections of my improved
Oil Can. The filling is effected by way of an aperture (a) in the top of the Can,
which can be closed by a metal cap (b) fixed to the top of the Can by a hinge (c)..
This cap contains a spring (d) pressing upon a washer or disc (e) of Metal covered
with leather, or other suitable material which when the cap is placed over the
aperture closes the same hermetically. The cap is held in the position closing the
aperture as aforesaid by a second spring or catch (f) until it is released by the said
spring or catch being pushed back or out of contact with the cap, when the latter
may be lifted off the aperture. Fig. 1 shows the Oil Can with the cap (b) closed over
the aperture (a), whilst Fig. 2 illustrates the same open. The spring or catch (ƒ)
is fastened at its lower end by solder to the tube (g) and is enveloped by the
mantle (h) soldered to the tube (g) and the top of the Oil Can, whereby the
chamber (i) is formed, in which the spring (f) has room to move, projecting by
the aperture (k) through the top of the Oil Can as shewn in Figs. 1 & 2. There is
no communication between the spring chamber (i) and that part of the interior of
the Oil Can which serves as the Reservoir for containing the Oil. An aperture (l)
in the tube (g.) situated at the upper end of the same just below the top of the
Oil Can allows the air to escape from the Reservoir, whilst the same
with Oil.
being filled
The second part of my invention refers to the means of hermetically closing the
opening by which the valve spindle enters the Can, when the Can is not being used,
so that no oil may escape from the Can by way of the said opening.
When the Can is being used, it is necessary that air should enter in order to
allow the oil to flow out of the spout when the valve is opened, but when the Can
is not in use, it is of advantage that it should be hermetically closed, so as to
prevent the liquid from escaping. For this purpose I cause the valvespindle (m)
Fig. 1 & 2 to enter the Can through a stuffing box (n) Fig. 1 & 2, which whilst
giving admission to the valvespindle, prevents leakage. The upper part of the
valvespindle, including that portion thereof which slides in the stuffing box I
construct of a hollow tube, having two holes or apertures (o & p) Fig. 1 & 2, one
about 1/, inch below the other and which are so placed, that when the valvespindle
is pressed down and the valve open, both these apertures are out of the stuffing
box, the upper aperture (o) being above the stuffing box and outside the Can,
whilst the lower aperture (p) is below the stuffing box and inside the Can, which
is the position illustrated in Fig. 2. By way of these two apertures and the
hollow tube there is thus air communication between the inside and the outside of
the Can, and the air being able to enter allows the oil to flow out of the Can through

page_text: the valve opening and the spout. But when the down pressure upon the valvespindle
is removed, and the same is pushed upwards into its normal position by the usual
spring the lower aperture (p) by which air entered the Can, whilst the valvespindle
was pressed down as described, is thereby pushed out of the Can and into the
stuffing box, as shewn in Fig. 1; the air communication between the inside and
the outside of the Can is thus cut off and the escape of liquid from the Can by the
stuffing box or the valve spindle effectually prevented.
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,
1st The improved combined mechanical arrangement of apparatus consisting of
the cap (b), with spring (d), disc (e), and hinge (c), spring (f) mantle (h), tube (g)
all substantially as hereinbefore described and illustrated in Figs. 1 & 2 or any
mere modification thereof.
2 The improved combined mechanical arrangement of apparatus consisting of
the hollow section of the valvespindle (m), apertures (o) & (p) therein and stuffing
box (n); all substantially as herein before described and illustrated in Figs 1 & 2 or
any mere modification thereof.
Dated this Fourth day of November 1884.