Year: 1887

page_text: Date of Application, 18th June, 1887
Complete Left, 19th Mar., 1888
Complete Accepted, 20th Apr., 1888
I, JOSHUA REA of Old Swan Oil Works, Liverpool, in the County of Lancaster,
Oil Manufacturer, do hereby declare the nature of the said invention :-
The object of this invention is to provide a tank or receptacle for mineral, vegetable,
animal and other oils, which may be easily withdrawn from the vessel without waste,
said tank being arranged, so that it can be readily cleaned, and provided with
a suitable device for preventing the escape of inflammable gases.
In carrying out the invention, the oil tank or reservoir is made of any convenient
size or shape, preferably cylindrical, with a fixed cover over a portion of the area
of its top or end. Hinged to this is a hood or cover, which covers over the remaining
part of the top. Under this cover or hood is placed a small pump, by means of which
the oil is raised from the tank. In front of, and below the mouth of this pump, I
place a movable, preferably perforated, tray which occupies the remaining space of
the top of the tank, not covered by the aforementioned fixed cover. This tray will be
of the same contour as the tank itself, and fit closely round inside its walls, or nearly
so, resting on a flange or other support soldered or otherwise suitably fixed thereto,
according to the nature of the material of which it is made. It can be simply laid in
place or fastened in by a catch, or set screw, or other similar device. This tray being
movable can be taken away at pleasure and the interior of the tank cleaned or
examined, and when perforated allows of any oil splashed or spilled thereon to run
through and back into the tank, thus tending to keep it always clean and free from an
accumulation of oil mixed with dust or dirt.
The pump referred to is also made movable, and can be used for pumping the oil
from the cask into the tank for use. It is preferably held in position by its pipe
being passed through a bush attached to the fixed cover, though the bush may
be made upon the movable tray. A catch securely holds the pump, it being after
inserted, turned half round or may be held by a thumb or set screw.
A gauge
is inserted through a small hole in the top of the movable tray by means of which the
quantity of the oil in the tank may be determined without removing the tray. This
may be either a graduated rod with a float on the lower end, or a plain graduated rod
on which the depth of the oil will be seen when withdrawn therefrom.

page_text: The hinged hood covers the whole perforated tray as well as the pump.
The tank as above described is suited particularly for holding animal and vegetable
oils. When it is required for mineral oils, which give out inflammable gases, I
provide the tray without perforations, and solder or otherwise fix the same to the sides
of the vessel. It is preferably made sloping so that any liquid lying on its surface
may collect at one point. In a convenient position on this fixed plate 1 provide
a screwed socket having a bell mouthed opening to facilitate the filling of the tank.
Into this opening the pump is screwed, the upper portion of the barrel being provided
with a shoulder, so that when it is screwed down, an air tight joint may be formed.
The lowest point of the fixed plate above described is provided with a double faced
valve. When, in its normal position no waste oil, which has collected on the plate or
cover, can pass through the valve, and similarly no gas can pass through it from the
tank. When the upper part of the valve is raised from its seating, a passage would
be formed from the tank, but the raising of the upper valve causes another valve
below it to be raised simultaneously on to the lower seating. The liquid therefore
passes the upper valve, but cannot fall into the tank until the lower valve is opened.
When the upper valve is again closed the lower valve opens and the liquid falls into
the tank. An escape of gas from the tank, during the operation of admitting the
waste oil, is therefore avoided. The two valves may of course be sufficiently far
apart to contain all the waste oil, which collects on the fixed cover. If desired a
spring may be provided for holding the lower valve against its seating, so that the oil
may run into the space above it. When depressed the upper valve will then close,
and the lower one open.
WM. P. THOMPSON & Co.,
Of 6, Lord Street, Liverpool,
Agents for the Applicant.

page_text: I, JOSHUA REA of Old Swan Oil Works, Liverpool in the County of Lancaster,
Oil Manufacturer 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 this invention is to provide a tank or receptacle for those volatile oils
(whether mineral, vegetable, or animal), which give off inflammable gases, the said
tank being so constructed and arranged, that the oil may be easily withdrawn
therefrom without waste, and without permitting the escape of the said inflammable
gases.
I carry out my invention as follows, reference being had to the accompanying
drawings, in which,
Figure 1 is a central vertical section through a tank ready for use, constructed in
accordance with my invention.
Figure 2 is an elevation of the same with the parts arranged for filling the tank
out of a barrel, etcetera.
The oil tank or reservoir A, is made of any convenient size or shape, preferably
cylindrical, with its top end closed by a fixed air-tight cover. One part B, of this
cover, is level with the top of the tank, and has hinged thereto, a hood or cover C,
which covers over the remaining part of the top. The other part of the cover is
placed some distance below the top edge of the tank, and forms a drip tray E, the
space between the parts B and E being closed by, an air-tight plate A¹. Under the
hood C is placed a small pump D or its equivalent, by means of which the oil is
raised from the tank.
The pump D is movable, and can be used for pumping the made oil from a cask
or other vessel into the tank for use. It is preferably held in position as follows:
In a convenient position on the part B, or if preferred on the tray E, I provide a
screwed socket d having a bell-mouthed opening d', to facilitate the filling of the tank.
Into this opening the pump D is screwed, the upper portion of the barrel being
provided with a screw d², and with a shoulder d³, so that when it is screwed down an
air tight joint may be formed. A leathern asbestos or rubber washer d¹ is preferably
inserted between the shoulder d³, and the top of the socket d. The discharge spout of
the pump D is made telescopic, or is provided with two or more loose bends, such
as D¹ of different lengths, which are useful when filling the tank, as shown in
Figure 2.
The hinged hood covers the whole of the tray E as well as the pump.
The tray E may be soldered, or otherwise fixed to the sides
preferably made sloping as shown, so that any liquid lying on its
at one point. This point is provided with a double valve K, K.
in its normal position, no waste oil, which has collected on the tray,
the valve, and similarly no gas can pass through it from the tank.
of the tank. It is
surface may collect
When the valve is
can pass through
When the upper

page_text: valve K is raised from its seating, a passage would be formed from the tank, but the
raising of the upper valve causes the other valve K', below it, to be raised simul-
taneously on to the lower seating. The liquid, therefore, passes the upper valve, but
cannot fall into the tank until the lower valve is opened. When the upper valve
is again closed, the lower valve opens, and the liquid falls into the tank. An escape
gas from the tank, during the operation of admitting the waste oil, is therefore
avoided. The two valves may, of course, be sufficiently far apart to contain all
the waste oil, which collects on the tray E. If desired, a spring may be provided
for holding the lower valve against its seating, so that the oil may run into the space
above it. When depressed, the upper valve will then close, and the lower one
of
open.
L is a pipe running right through the tank, for the purpose of heating or cooling
the contents thereof.
Having now particularly described and ascertained the nature of the said
invention, and in what manner the same is to be performed, I declare that what
I claim is
1. The apparatus substantially as described, consisting of an air-tight tank for
holding oil, a movable hood covering the working parts, to prevent the entry of dirt
or dust, a pump or its equivalent to raise the oil, a drip tray placed below the spout
of said pump, and a valve, such as K, K', located at the lowest point of said tray, for
the purpose of returning the droppings of oil to the interior of the tank without
permitting the escape of the inflammable oil gases therefrom.
2. The arrangement of pump with a screw d', or its equivalent in combination with
an air-tight tank, substantially as described.
WM. P. THOMPSON & Co.,
Of 6, Lord Street, Liverpool,
Patent Agents for the Applicant.