Improvements in Apparatus for Detecting Gas Leakage.
Year: 1899

page_text: Date of Application, 12th May, 1899
Complete Specification Laft 11th lon 1000
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Detecting Gas Leakage.
We, ALFRED WoodMANSEY, 25, Garfield Road, Lavender Hill, S.W., in the
County of Surrey, Engineer, and THE BRINS OXYGEN COMPANY, LIMITED, of 34,
Victoria Street, in the City of Westminster, do hereby declare the nature of this
invention to be as follows:-
This invention consists of an instrument for testing the valves of cylinders
containing compressed gases, in order to ascertain when they are shut off, or if
they are in any way leaking.
The instrument consists of a glass tube partly filled with water, or other liquid,
with a metal rod passing through the centre, or enclosed in a metal case, and
provided with suitable caps at each end, with valve chambers, and rubber or
metal valves.
An inlet pipe is provided at the bottom of the instrument and is sheathed with
rubber in order to make a flexible joint with the outlet of the valve of the cylinder
when pressed into the same.
The escaping gas enters the instrument through this passage and lifts the inlet
valve passing through the same into the water or other liquid contained in the
glass tube. The gas rises in bubbles through the water, and escapes through a
similar outlet valve at the top of the instrument into the atmosphere.
The special construction of the valves prevents the water from escaping, but
permits the gas to flow freely through the water, thus indicating the minutest
leakage of gas, as hereinbefore described.
Dated this 8th day of May 1800
ALFRED
WOODMANSEY.
BRIN'S OXYGEN COMPANY, LD.
We,
Improvements in Apparatus for Detecting Gas Leakage.
ALFRED WOODMANSEY, of 25, Garfield Road, Lavender Hill, in the
County of Surrey, Engineer, and THE BRIN'S OXYGEN COMPANY, LIMITED, of 34,
Victoria Street, in the City of Westminster, 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:-
This invention consists of an instrument for testing the valves of cylinders or

page_text: other vessels, containing compressed gases, in order to ascertain if they are shut
off, or if they are in any way leaking.
The instrument as shown on the accompanying drawing consists of a glass
tube A, partly filled with water, or other liquid W, with a metal rod B, passing
through the centre, and provided with suitable caps C1 C2 at each end, with valve
chambers D D2, and valves E1 E2 of rubber or other flexible material. An inlet
pipe F, is provided at the lower end and is sheathed with a ferrule G, of rubber
or other flexible material, in order to easily make a flexible joint, with the outlet
of valve of the cylinder, when pressed against same.
When a cylinder valve is not shut off, or is otherwise defective, the escaping
gas enters the inlet pipe F, and passes into the valve chamber D, through the
small holes de lifts the rubber disc inlet valve off its seating on the spindle B
and forces its way between the disc valve E and the spindle B3, passing by same,
and it then rises through the water or other liquid W, contained in the glass
tube A. in the form of bubbles, and escapes by the valve E2 in a similar manner
to that which it passes the valve El into the valve chamber 12 through the
small outlets 1, 63, into the atmosphere.
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:-
1. In the instrument as described the special construction of the valves E, E²,
as shewn, whereby the water or other liquid is permanently retained in the
instrument in any position.
2. In the instrument as described the special combination of valves, glass
tube, and other parts whereby gas can enter into the glass tube, and pass through
the water, or other liquid, contained therein and pass out therefrom without
removing the water from the instrument in so doing.
101
3
T
1000
ALFRED WOODMANSEY.
BRIN'S OXYGEN COMPANY LIMITED.
E. B. ELLICE CLARK.
ELLIS ELIAS.
Directors of Brin's Oxygen Company, Ld.
T. N. HESTER,
Secretary.