Year: 1888

page_text: We, HEINRICH PETRI and JOHANN CARL HAUSMANN, Manufacturers of Cochem
on the Mosel in the Kingdom of Prussia and German Empire 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:-
Syphons for drawing off or decanting liquids from barrels tanks or other vessels as
heretofore ordinarily constructed present considerable disadvantages. Firstly in
starting them to work the mouth of the operator is applied to create the necessary
suction which is injurious in the case of acids and unclean when working with other
liquors Secondly it is difficult to regulate the quantity of liquid. drawn off or to
intercept the working of the Syphon-With the improved apparatus constituting this
Invention these disadvantages are avoided, the said improvements consisting of a
peculiar pumping and air escape arrangement adapted to the outlet arm of the
ordinary suction tube.
C
:
On the accompanying drawings Figure 1 is an elevation of the improved Syphon-
Figure 2 is a section through the pump cylinder and regulating arrangement and
Figure 3 is an elevation of the pump cylinder with the air outlet arrangement shewn
in section-The lower or outlet end of the ordinary suction tube a is connected to
the pump cylinder which is made of brass or other suitable metal and is correctly
bored. The cylinder b contains an airtight piston c which moves freely and whose
rod is guided by a stuffing box-The piston rod d is hollow and is formed or
provided at or near one end with an outlet branch or tube e¹ through which the
liquid is discharged whilst at its other end it has a valve e. The opening and closing
of the valve is regulated by the handle and spindle f. the latter being screwed at
one end and tapped into a screwed part in the hollow piston rod d-The piston c has
also a spiral spring i which presses against the cylinder cover when the piston rod
is fully drawn out-In conjunction with the pump cylinder there is further provided
an air valve m the chamber containing which communicates with the cylinder through
the channel 1, the valve being pressed on to its seat o by a spiral spring n.
The air
valve spindle p. is led along the outside of the pump cylinder 6 to an opening at the
lower end of the latter through which the bent extremity g of the spindle passes into
g

page_text: the cylinder. With this arrangement when the piston c is drawn out in order to
cause a suction of the liquid the part of the piston will press against the projecting
point of the air valve spindle p. so lifting the valve m from its seat o.
The piston
rodd and the valve spindle f move in air tight stuffing boxes at t and s. The capacity
of the cylinder must be more than twice the cubic contents of the shorter or inlet
arın al of the syphon in order that the tube a may be filled when the piston is drawn
out for the purpose of starting the suction.
The application of the apparatus is as follows:-
Before beginning the valve e is closed and the piston c is pressed home to the
upper end of the cylinder . The piston is then drawn out by means of the handle h
until the spiral spring is compressed against the cover and the part of the piston
strikes the point q of the air valve spindle p so lifting the air valve from its seat-The
vacuum thus caused in the cylinder, and in the part-a of the Syphon is then filled
with the liquid rising out of the barrel tank or other vessel which liquid collects in
the cylinder, the air. from the tube a passing off through the channel into the air
valve casing and escaping thence through the air holes w figure 3. After a few
seconds all the air will have escaped and the liquid will fill the air valve casing and
show itself at the holes w. When the liquid so shews itself the operator lets go the
handle and the spiral spring i pushes back the piston c until the part is released
from contact with the point of the air valve rod p when the air valve closes and
prevents any further escape of the liquid--A receptacle to receive the liquid being
then placed under the outlet e¹ of the hollow piston rod d the outlet valve e is opened
by turning the handle and the contents of the barrel or tank may then be run off-
When one vessel is filled the valve e may be closed until another is placed under the
outlet e¹
By means of the arrangement of syphon hereinbefore described the drawing off or
decanting of liquids is rendered easier and the quantity may be regulated with great
nicety.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed we declare that what we
clain is
1. The general arrangement and combination of parts constituting the improved
syphon substantially as herein before described with reference to the accompanying
drawings.
2. The combination with the syphon tube a a¹ of the cylinder 6 piston c liquor
valve e air valve m and their accessories acting substantially as described with
reference to the appended drawings.
Dated this Ninth day of April 1888
CRUIKSHANK & FAIRWEATHER,
62, Saint Vincent Street, Glasgow,
Agents.