An Improved Gas Regulator.
Year: 1898

page_text: Date of Application, 23rd June, 1898-Accepted, 15th Oct., 1898
An Improved Gas Regulator.
I, EMIL SONDERMANN, of 19, Strehlener Strasse, Dresden, in the Kingdom of
Saxony, German Empire, Mechanic, 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 present invention relates to an improved gas pressure regulator and has
for its object to provide a regulator which can work absolutely exact and be in
every respect reliable.
In the regulators in use up to the present, the gas current is closed or opened,
as the case may be, by a conical valve. Such a valve may be good at the com-
mencement, but, after a time, owing to friction, the parts become loose and there
cannot be a perfect regulation of gas pressure with parts which have become loose.
In the accompanying drawing, in which I show my device in section C, C¹,
and C, represent a gas conduit the centre portion of which C¹, is enlarged as
shown. This enlarged portion is open at the bottom and is normally closed by
a gas-tight cap D, whilst in its upper portion is sunk a short pipe E, having its
under end serrated substantially as shown. The course of the conduit is not
straight but is as shown by the arrow.
Affixed to the gas conduit are two shells A, and B, in such way that a
water-tight vessel is formed by the space between same having as its bottom the
gas conduits. This space is then filled with a fluid such as glycerine.
G is a bell which is telescoped into the space between the shells A and B and
to which bell is attached a rod J having its under end threaded. This under
end passes through the centre of the short pipe E, and has attached to it a dish F,
containing mercury, the said dish being lifted by each upward movement of the
bell G and rod J and in the same ratio.
The working of the device is as follows:
Assuming the bell G, the cap D, and the dish F, not yet to have been fitted,
the first thing is to put the bell into position by telescoping it between the
shells A and B. The end of the rod will then project beyond the under
serrated end of the short pipe E, so that the dish F, can be screwed on to same.
The cap D is then attached and the apparatus is ready for work.
The whole can then be covered by a hood L.
M is a small filling hole and N is a small outlet for any water which may.
have collected.
In previous devices of this description, the valve is formed by the contact, of
mechanical parts, whilst in my invention the agent for regulating the current or
pressure is a fluid. With a fluid there is no friction and the serrated end of the
short tube E, enables the regulation to be effected to the finest possible degree.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is:-
1. A gas pressure regulator substantially as described and shown in the

page_text: 2. In a gas pressure regulator the combination of a dish containing mercury
or a like suitable fluid with the bell, connecting rod attached to same and with
a serrated portion of the gas conduit substantially as shown and described.
Dated 20th June 1898.
J. E. EVANS-JACKSON & Co.,
Agents for the Applicant.