A NEW OR IMPROVED SYPHON
Year: 1884

page_text: I LORENTZ ALBERT GROTH K.G.V. Civil Engineer and Managing Director of
the Universal Inventors and Patentees Financial Company Limited 30 Finsbury
Pavement London E.C. do hereby declare the nature of said Invention for A NEW
OR IMPROVED SYPHON and in what manner the same is to be performed to be
particularly described and by the following statement:-
The Invention refers to the use of a new air steam or water tube applicable to
syphons of every description to effect the necessary motion of the fluid.
If in a tube A B Fig. 1. open at the two extremities and in communication with
the air is introduced another tube C D of smaller diameter through which is passed
at a certain speed a liquid air steam or any other similar matter there will be
created in the tube A B a current of air in the same way as the one of the jet
issuing by CD.
This result is easily understood upon considering that the jet in escaping through
the opening D causes a continuous rarefaction in the upper part of the tube A B
resulting in the creation of a current of air in A which lasts as long as the injection
through the tube C D is continued.
It is evident that if the extremity of the tube A is in communication with a
liquid instead of with the atmosphere the liquid will fill the empty space created
in the tube A and upon arriving at the part D will be carried away by the jet and
this forms a continuous current during the time that the jet operates.
The different applications of this principle are sufficiently well-known it is
applied to the feeding of steam boilers, to increase the draught of chimneys and to
accelerate the action of filters &c. but its application to syphons is entirely new
and forms the subject of the present Invention.
To
The syphon is known as an apparatus for decanting liquids being generally
formed by a tube open at the extremities and bent into two unequal arms.
prime a syphon it must be filled by a liquid and the extremities corked it must
then be replaced and introduced into the liquid to be decanted by the shortest
arm or it may also be primed after being replaced the liquid being blown through
the longer arm or through another tube communicating with the latter.
These two methods present difficulties and in the majority of instances the act of
blowing or inspiration referred to above is dangerous to the operator.
All these inconveniences are avoided by employing this new syphon because as
a rule a slight breath will suffice to set the apparatus going. The working of
this apparatus is done without directly inspiring the liquid and consequently there
is no danger.
Fig. 2 represents one of these syphons. It is formed by a pipe A. B. C. curved
in two unequal arms. The longer arm of the pipe B. C. is supplied with a globe
at which two other pipes DE and FI abut, the latter, entering the globe and .

page_text: penetrating as fare as the pipe D E by its extremity I which is of smaller
diameter.
On the other hand the pipe D E is somewhat widened in its part D.
These pipes can be connected with the globe by soldering or screwing or in any
other way provided the entrance of air at this point is prevented.
The syphon once being properly fixed with the extremity A. touching the liquid
it only requires a slight breath through F to put the apparatus in motion for
thereby a rarefaction will be created in the globe and in the pipe A. B. C. and the
atmospheric pressure will cause the liquid to rise through A B and then to fall
through B. C. The result will be exactly the same whether air or any other gas
steam or a liquid be injected through the pipe F I.
Figs. 3 and 4 represent the most practical manner in which the apparatus may
be constructed. The arm through which the liquid passes out Fig. 3 is curved
at H for the purpose of introducing into it another lateral pipe K L the section of
which narrows at M a point situated a little under the side branch H consequently
the pipe K L receives in its inner part the injecting pipe NO the diameter of
which is somewhat smaller one of the extremities of which may or may not
terminate in a truncated point. This point is placed quite close to the
narrowing M and a little under the branch E.
The pipes NO is connected by means of soldering or in any other suitable way
with the pipe KL. By breathing through N an empty space is created in the
tube G H and upon the extremity G being plunged in a liquid this liquid will fill
the tube and pass out by L.
In Fig. 4 the longer branch of the syphon is provided at O with a three way
cock in communication with a lateral opening to admit a tube in which ends the
point of the injecting pipe. The opening is curved at Q and returns to the syphon
so as to have only one way through which the liquid may pass. The injecting
pipe PR is connected at P and its point is situated somewhat below the connecting
point with the cock.
The syphon is primed by turning the cock in order to place it into communication
with the tubes then the primer must breathe through h or introduce through it a
jet of water or steam the current of which creates an empty space in the syphon
and if the other arm be in communication with the liquid the latter will fill the
syphon and pass out by Q.
The cock must then be turned so as to allow the liquid to flow through the
main branch of the syphon. By this arrangement the flow of the liquid may be
cut off without displacing the syphon by turning it in the reverse way to that
shown in the Drawing.
The component parts of the syphon may be made of glass metal or any other
convenient material.
my
Having now particularly described and ascertained the nature of said
Invention and in what manner the same is to be performed I declare that what
I claim is
The application to syphons of any kind, having for their object the decanting of
liquids, of a tube or injecting apparatus to start the syphon by the aid of a jet
of steam, or liquid; a current of air or other gas injected into the mainbranch or
into branch tube in communication with the former.
01001.