An Improved Pressure and Supply Regulator for Gases and Liquids.
Year: 1899

page_text: ..
Date of Application, 17th Oct., 1899-Accepted, 2nd Dec., 1899
COMPLETE SPECIFICATION.
An Improved Pressure and Supply Regulator for Gases and Liquids.
We, SIGISMUND MÜHLENTHAL and MAX LÖWENTHAL, Merchants, both of
105c, Friedrichstrasse, Berlin, in the Empire of Germany, and THEODOR HAHN,
Gas Inspector, of Kotzschenbroda, Saxony, in the Empire of Germany, aforesaid,
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 pressure regulator forming the subject of the present application is not
only completely counterbalanced, and permits of gases or liquids being delivered
with a determinate amount of pressure, but it is also so constructed that, with
the assistance thereof, the amount of the gas delivered, or that of the liquid
entering the service pipes, may be exactly regulated.
The fluid (whether gas or liquid) arrives, in the first instance, between two
pistons of equal size, one of which, according to its position, closes more or less
an exit opening.
If the pressure exceeds a certain given amount, then, by the lifting of a bell,
or the like, a change of position of the two pistons may be provided for, and
thereby the size of the opening for the passage of the fluid sufficiently altered,
so that the fluid will arrive, under a certain given pressure, in a canal or passage
which, by means of a screw valve, will be more or less closed, so that only an
exactly determined amount of the fluid can enter the service pipes.
In the accompanying drawings, two forms of the apparatus are shewn.
Fig. 1 being a vertical section of a gas regulator constructed according to
this invention,-and
Fig. 2, a section on the line - of Fig. 1.
Fig. 3, represents a detail;
Fig. 4, a vertical section through a regulator for liquids,--and
Fig. 5, is a section on the line y-y of Fig. 4.
In the casing a, Fig. 1, a bell-shaped vessel b is provided, which, floating
in mercury, carries two pistons d & e, by means of the rod c. The gas entering
the opening farrives by means of a passage g, in order, after passing through
the recess of the tube i, to arrive between the two pistons d & e. As these two
pistons are of equal diameter, the same amount of pressure will be exerted on
both. The gas then passes, further, through the conical notches of the tube i,
shewn more in detail at Fig. 3. After leaving the tube i, the gas rises upwards
beneath the bell b. The parts are now so balanced and regulated, that, in case
the pressure of the gas exceeds a certain amount, the bell b will be somewhat
raised. With the change of position of the said bell, however, follows also a
change in the position of the two pistons d & e. The latter will now regulate
exactly the exit openings in the tube i, in correspondence with the present
amount of gas-pressure, so that a decrease of pressure takes place, and the gas
will enter the passage z only at the desired pressure. The gas then passes from
the passage through another passage 1, from which it cannot, however, arrive
directly into the service pipes, but it must first pass through the screw valve m.

page_text: This is now so arranged that the gas can only escape by the passages n & o
in an exactly determined amount, in correspondence with the amount it is
desired to use. The gas will therefore first be regulated in its pressure, by means
of the bell b, and the pistons d and e, and thereafter in its quantity, by means
of the screw valve m.
In the modification shewn at Figs. 4 and 5, there is provided, instead of the
bell b, a piston p, which is capable of a reciprocating motion in the casing a,
which is open at the top. If the pressure of the fluid exceeds a certain given
amount, the piston will be raised, and effect, in a similar manner to the bell b,
After the
an exact regulation of the openings for the passage of the fluid.
pressure has been regulated, the quantity of the fluid which escapes at o will,
in this case, also be determined by the screw valve m.
said
Having now particularly described and ascertained the nature of our
invention, and in what manner the same is to be performed, we declare that
what we claim is: -
1. A pressure and delivery regulator, for gases and liquids, characterized
by the fact that the fluid is first, by means of a counterbalanced piston, held at
a certain determined pressure, in order that it may arrive in a passage which,
by means of a screw valve, provides an opening or passage of a size to correspond
with the amount of gas or liquid required for use.
2. A form of the pressure regulation for gas claimed under Claim 1, charac-
terized by the fact that the gas, after passing through a tube furnished with
openingsk, comes underneath a bell-shaped vessel, and so alters the position
thereof that the regulating piston e in connection therewith allows the gas
from the tube i to escape only at a certain determinate pressure, whereupon
the gas so maintained at the desired pressure, determined by the regulating
valve m, can only arrive, after passing through the canal %, in an exactly
regulated quantity in the service pipes.
3. A modification of the pressure regulator claimed under Claim 1, suitable for
liquids, and characterized by the fact that, instead of the bell employed in
accordance with Claim 2, a piston p is used, one side of which is in connection
with the passage (capable of being more or less closed by means of the screw
valve m), and also with the service pipes.
Dated this 17th day of October 1899.