Improvements in Tank Wagons for Petroleum and the like.
Year: 1895

page_text: COMPLETE SPECIFICATION.
Improvements in Tank Wagons for Petroleum and the like.
I HUGO CARL DEHN, of Lubecker Thor 17, Hamburg, in the Empire of
Germany 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:-
This invention for improvements in tank wagons for petroleum and the like
has for its object to provide a tank wagon for the street sale of petroleum with
a special apparatus allowing the fluid to be measured and drawn at the same
time.
On the accompanying sheet of illustrative drawings
Fig. 1 is a side elevation of a tank wagon constructed according to this invention
and Fig. 2 is a back elevation of the same.
1.
Fig. 3 is a back elevation to a larger scale of the control tap apparatus and
Fig. 4 is a sectional elevation on the line X X of Fig. 3.
Fig. 5 is a back elevation of an apparatus for small quantities of fluid, and
Fig. 6 is a vertical section of the same on the line Z Z.
The transport wagon consists essentially of an under frame resting on wheels
and the cylindrical tank A fastened thereto and made of welded iron plate. A
welded dome provided with a cover that can be shut down serves for the inlet of
the petroleum. A welded tank is necessary as for such a thin penetrating fluid
as petroleum a rivetted tank would not be sufficiently impervious. Upon the
sides of the tank are runners C below which there are hooks D to receive the
measures E.
The drawing off apparatus F is fixed at the hinder lower end of the tank and is
attached thereto by communicating tubes Rr. The petroleum enters through the
tube R, any air in the container escaping through the tube r. The apparatus
itself consists essentially of two containers K K' enclosed on all sides with sloping
inner bottom surfaces. At the lowest points thereof the containers are connectel
by the two way cock H whilst the two way cock H' the spindle of which turns
with the spindle of the lower cock H establishes in one position communication
between the two containers at their highest point and in the other position connects
the above mentioned tuber with the interior of the tank. The spindles of the two
valves have a common connecting sleeve M to which a handlé J' is fastened.
Above this and in front of the apparatus there is fixed a toothed gear L having a
loose pin projecting backwards from its case. The free end of this pin projects
into a slot of the sleeve M. The inspection glasses attached to the top cock
supports enable it to be seen when the containers K K' are entirely filled with the
fluid. Atmospheric air is admitted to the containers as required through openings o
in the sides of the case. The tube r rises inside the tank above the bottom
thereof.
The operation of the controlling outlet apparatus is as follows: If the handle
is for example turned to the right the spindles of both cocks are correspondingly
rotated and the pin i of the toothed gear moved through the slot i¹ of the sleeve M;
furthermore the communication between the tubes R and r and the right hand
container is opened and petroleum enters therein from underneath. So soon as
this is filled which can be seen by the right hand inspection glass the handle J is
turned to the left whereby the communication with the said right hand pipes is
closed and the left ones are opened in the same manner with the corresponding

page_text: The
movement of the pin i. At the same time however the contents of the right hand
container flow out in a can placed in the meantime under the mouth m.
outflow is permitted by means of the inlet of air taking place through one of the
openings o on the tap body H' and which before was closed by the tap spindle.
All fillings and emptyings of the container are thus registered by the toothed
gearing so that as each container holds a certain quantity of fluid a sure and easy
control takes place.
The apparatus shown in Fig. 5 is designed for small quantities. The container N
of the fluid is here divided into two equal spaces O O' by means of a partition to
and the two way cocks H H' form a part as far as the tap spindles are concerned
with the metal of the containers which may be rotated by the handle J' fixed to
the outside of the container. As shown by Fig. 6 the left hand space O com-
municates in the position drawn by channels ppl with the tubes R and whilst the
channels serve the same purpose, on a further rotation of 180° to the right
hand space O. In the position shown the part O is filled and O¹ is emptied; the
latter takes place with the entry of air through the channel o in the top tap body.
The toothed gear that is its pin is actuated by a stud t fixed on the container
cover.
'
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 :
1. A transport wagon for petroleum or the like consisting of a welded tank
provided with a filling hopper and with automatic measuring and drawing off
apparatus fixed at the back end thereof substantially as described.
2. The construction of the measuring and drawing off apparatus consisting of
two closed containers K K' of equal volume between which at the highest and
lowest positions, both an outlet and inlet cock H H' is fixed, the spindles of which
have a common rotating axis whereby the lower tap according to the rotation of its
spindle regulates the flow of fluid through the pipe R into one or the other of the
containers whilst the upper tap at the same time allows the excess of fluid to flow
back to the tank through the tuber and a toothed gear L working in the rotating
axis of the spindles indicates each filling and emptying of the container substantially
as described.
3
3. The modified construction of measuring and drawing off apparatus in which
a rotatable container N divided in the middle, is fitted at the top and bottom into
tap bodies H H¹ by means of projections formed as tap spindles and provided with
channels ppl whereby the filling and emptying of the parts and also overflow
of the excess fluid takes place as described on rotating the whole container
through 180° whilst the toothed gear is at the same time actuated by means of a
pin fixed on the container substantially as described.
4. The improvements in tank wagons for petroleum and the like substantially as
described with reference to the drawings.
Dated this 3rd day of April 1895.
WHEATLEY & MACKENZIE,
40, Chancery Lane, London, W.C., Agents.