Gases, and Especially for Carbonic Acid.
Year: 1887

page_text: Date of Application, 25th June, 1887.
Specification Accepted, 5th Aug., 1887.
Gases, and Especially for Carbonic Acid.
We, OSCAR BRÜNLER of Tempelhof near Berlin in the German Empire, Merchant,
and CARL GUSTAV ROMMENHÖLLER of Rotterdam in the Kingdom of Holland
Merchant do hereby declare the nature of said invention for "IMPROVEMENTS IN
PRESSURE REDUCING VALVES FOR HIGHLY COMPRESSED GASES, AND ESPECIALLY FOR
CARBONIC ACID" and in what manner the same is to be performed to be particularly
described and ascertained in and by the following statement :-
In the pressure reducing valves hitherto in use for highly compressed gases either
the closing organ has been connected direct with the flexible pressure plate (membrane
or plate spring) or with the pressure piston, or the valve has been connected to the
pressure plate through a bell crank or double lever. The first mentioned construction
had the disadvantage that the pressure bearing upon the valve had to be overcome by
the pressure plate or pressure piston. As however the pressure on this valve generally
lessens and especially so in the case of carbonic acid, so also does the resistance vary
which has to be overcome by the pressure plate and a constantly similar amount of
reduction does not take place. The other form of construction is accompanied by
the disadvantage that the double lever receives back lash and therefore does not work
with sufficient exactness for the reduction of very high pressures.
Now, our invention is designed to do away with the aforesaid disadvantages whilst
possessing the property of great simplicity.
Referring to the accompanying drawing:
-
Fig. 1 shews in section a pressure reducing valve in accordance with our invention
and Fig. 2 is a separate view of one of the detail parts.
A and B are two casings between which a pressure plate (membrane or plate
spring) C is fixed by screws or bolts and is in connection with the frame D which
encloses or surrounds the inlet lug a and effects the connection with the valve V
exercising thereon a perfectly central and axial pressure. The movable joint or link
like connection of D with C is effected by means of a screws which at the same time
serves for receiving the pressure of the pressure plate C and spring F when there is
To prevent the
no pressure in the casing A, in which case it hears against the lug a.

page_text: small valve V pressing too hard against its seating a stud or pin i is fitted to pass
somewhat freely through the bottom part of the frame D so as to yield slightly therein
when the spring-which constantly tends to keep the stud in the position shewn-
yields or gives way. The valve V has an exact guide in which to move and its
guiding surface is formed with several channels that allow of the passage of the gas
to A. The highly compressed gas enters at a, and passes out reduced to a lower
pressure at z.
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 claim is :
The combination of the pressure plate or diaphragm C with the connecting frame 1)
enclosing and surrounding the inlet lug a; stud i and valve V, for the purpose
specified substantially as described and shewn.
EMIL
CAPITAINE,
89, Chancery Lane, London, W.C., 15
Agent for the Applicant.