Improvements in Siphons.
Year: 1893

page_text: Date of Application, 21st Jan., 1893-Accepted, 18th Mar., 1893
COMPLETE SPECIFICATION.
Improvements in Siphons.
I, JOHANN WILHELM MICHEEL, Manufacturer, of Duisburg, Heerstrasse N 94,
in the Province of Rhineland, Germany, 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 sucking of the angle-syphon is especially with disagreably tasting fluids and
acids very unpleasant for the workman, as the fluid easily gets into his mouth.
Many constructions have already been made in order to overcome this dis-
advantage, but all of them turn out to be rather complicated..
My invention, while attaining equal results is the simplest that can possibly be
made in this line. It is represented in Fig. 1. at rest and in Fig. 2 while working;
Fig. 3 shows the pump of the discharge-leg on a somewhat larger scale.
The discharge-leg A of the syphon, which conveys the fluid, that is to be drawn
off, downwards, terminates just below the angle B and C. The end of this leg
passes through the bottom of a concentric wider cylinder D, which therefore
encloses it. The lower open end of this cylinder is closed by a cap E which is
pierced and is provided with a stuffing box. Through the latter, a tube F passes,
of which the end, that is in the cylinder is formed into a pump-piston G and
surrounds with a short stroke the end C of the leg A which reaches from the top
almost to the lower end of the cylinder. The other end of the tube F forms a
discharge-cock. If the syphon is to be worked the cock H is closed, after the
shorter leg I has been placed in the fluid that is to be drawn off, when of course
the cock H must be opened and the pump-piston G in the cylinder D be pushed up
to the highest position. Then the tube F with the pump-piston G is placed down-
wards so that the air is rarefied inside the cylinder D and the fluid begins to flow
downwards through the leg A into the tube F. If the cock H is now opened the
syphon continues to work without ceasing. Thus almost the whole fluid can be
sucked out of the vessel that is to be emptied, especially as, when the fluid has
uearly all run off, and when the pressure of the fluid-column decreases in the
vessel to be emptied, one draws the tube F so far downwards till the piston G
lies on the bottom of the cylinder D, by which means the point of discharge
of the fluid is transferred much below the bottom of the vessel which is to be
emptied.
With this syphon no fluid ever remains in the cylinder B, as it (the fluid)
passes from the end C of the tube A always directly into the discharge-
pipe F; a choking of the cylinder D is therefore not to be feared. The surface
of the piston can also be deepened somewhat in the shape of a funnel, and form
the upper bottom of the cylinder D of a corresponding conical shape projecting
downwards, so that when the piston is pushed upwards later on, any drops of
water that may have been carried upwards are conveyed back into the tube F.
A very slight drawing down of the piston suffices in order to rarefy the air
sufficiently, so that the fluid begins to flow. If the surface of the piston is made
of vulcanite or leather no action of acids is to be feared.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what I
claim is:
Angle-syphon of which the discharge-leg is formed into a pump, distinguished
by the cylinder D enclosing the end of the discharge-leg A and by the dis-
charge-tube F, the upper end of which passes as piston G into the cylinder D

page_text: while the lower end terminates in a discharge-cock H, the tube F being intro-
duced from below through the cap E by means of a stuffing-box and passing round
the end C of the discharge-leg A.
Dated this Twelfth day of January A.D. 1893.
BERNHARD BROCKHUES,
Applicant's Agent.