Improvements in Syphons.
Year: 1890

page_text: Date of Application, 22nd Aor., 1890-Accepted, 21st June, 1890
COMPLETE SPECIFICATION.
Improvements in Syphons.
I, EDUARD AUGUST MEYER, of Köpnicker Strasse 102, Berlin in the German
Empire, Distiller 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 :-
In the case of the smaller kinds of syphons, the method of exhausting the same of
air previous to running off the liquid in question, consisted in the person in charge
applying his mouth to the lower end of the syphon and sucking out the air from the
same. This method has the disadvantage that a small quantity of the liquid invariably
enters the mouth of the person in question, a serious disadvantage, especially in the
case of poisonous liquids. In order to avoid this dangerous inconvenience I have
constructed a syphon in which it is impossible for the liquid to be drawn off, to enter
the mouth of the operator, whilst exbausting the syphon at the commencement of the
operation.
In order to make my invention more clear, I refer to the accompanying drawings,
which form parts of this specification and in which similar letters denote similar parts
throughout the several views.
Fig. 1 is a side elevation of my improved syphon.
Fig. 2 shows a modified form of the same.
Fig. 3 shows in section a detail view of the check valve.
The nozzle a is soldered to the fall pipe A of the syphon at any convenient point in
the same; this nozzle contains a sieve or strainer and is closed by means of a check
valve B. The mouthpiece C is screwed to the nozzle. At the lower end of the
pipe A of the syphon is attached cock d or a short piece of india rubber pipe d'
(fig. 1).
The syphon is set into action in the following manner.
The short arm A¹ of the
saine is placed into the receptacle containing the liquid to be drawn off, and the cock
at the end of the long arm is closed-in the case of india rubber tubing the same may
be pressed together by a clamp as shown in fig. 1. The air is now exhausted from the
syphon by suction at the mouth piece C. As soon however as the liquid has been
sucked into the syphon as far as the mouthpiece nozzle, it closes the valve B and is
thus prevented from entering the mouth of the operator. The cock at the end of the
pipe may now be opened, when the liquid will flow off.
The valve B is so constructed that it may not be closed by the current of air
caused by the suction-it being too heavy-otherwise it would hinder setting the
syphon in action. It remains open until closed by the weight and force of the liquid
entering the nozzle.
It is not necessary that the person in charge should suck the syphon with the mouth
in order to exhaust it; this may be effected by means of an indiarubber ball, in which
case the check valve B will prevent the liquid from entering the ball and destroying
the same.
Having now particularly described and ascertained the nature of my said
invention and the manner in which the same is to be performed, I declare that what 1
claim is:
1. In a syphon the combination of check valve B situated in nozzle a in the fall
pipe of the syphon, said valve inclosed by mouthpiece C and adapted to be closed by
the liquid entering the nozzle, and a stopping device at any point in the fall pipe
helow the mouthnisce () in the inanner substantially as described

page_text: 2. In syphons, the combination of the valve B situated in nozzle a of the fall pipe
of the syphon, said valve protected by sieve and enclosed by mouthpiece C, with the
stopcock dat end of fall pipe, in the manner and for the purpose substantially as
described.