Improvements in or connected with Steam, Water, and other Valves.
Year: 1899

page_text: Date of Application, 9th Sept., 1899
tion Left 11th June, 1900-Accepted, 28th July, 1900
PROVISIONAL SPECIFICATION.
Improvements in or connected with Steam, Water, and other Valves.
I, JAMES DICK GILMOUR, Chemist, of 190, Butterbiggings Road, Glasgow, do
hereby declare the nature of this invention to be as follows:-
This invention relates to improvements in or connected with steam, water
and other valves, more especially to those of the screw down type, and consists
in forming the face of the valve proper, with a ring or bed of an amalgam of
soft metals, in lieu of employing a ring of asbestos or other similar material.
By the employment of an amalgam in the valve cover, the face thereof can
be readily trued, thus enabling the valve to be maintained in efficient working
order for a considerable period before complete replacement of the valve cover
becomes necessary.
In place of an amalgam of soft metals, a white or soft metal alone may be
employed. The metal facing may be obtained by forming the valve cover with
an annular recess filled with the metal in a molten state.
1000
WANNA
Deted this 8th day of op
Dated this 8th day
JOHNSONS,
Dalitioner's Agents, 115, St. Vincent Street, Glasgow.
Improvements in or connected with Steam, Water, and other valves.
I, JAMES DICK GILMOUR, Chemist, of 190, Butterbiggins Road, Glasgow, do
in and by the
hereby declare the nature of this invention and in what manner the same is to
be performed, to be particularly described and ascertained
following statement:-
This invention relates to improvements in or connected with steam, water
and other valves, more especially to those of the screw down type and consists
in forming the face of the valve proper, with a ring or bed of an alloy of
soft metals in lieu of employing a ring of asbestos or other similar material.
Fig. 1 of the accompanying drawings which represents a cross section of a
steam valve and Fig. 2 which is a perspective view of the valve or valve cover
alone, shew the method of carrying out my invention. The metal facing which
bears upon the seat A may be obtained by forming the valve, valve cover or
disc B with an annular recess as shewn, the walls of which are preferably
tapered to form a dovetail so that the alloy C which is filled in in a molten state
1- retained in position when set.

page_text: The alloy of soft metals that I prefer to use consists of lead, antimony and
tin in the proportions of say: -
95 per cent. lead; 3 per cent. antimony and 1 per cent. tin, to
75 per cent. lead; 15 per cent. antimony and 10 per cent. tin.
By the employment of an alloy in the valve or disc B, the face thereof can be
readily trued whereby the valve may be maintained in efficient working order
for a considerable period before complete replacement of the valve disc becomes
necessary.
In lieu of an alloy, a soft metal such as aluminium may be employed.
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:-
1. Forming the face of the valve, valve cover or disc of steam, water and other
valves, with a ring or bed of soft or white metal or metals, substantially in
the manner as hereinbefore described and shewn in the accompanying drawings.
2. Forming the face of the valve B with a ring or bed of an alloy of soft
metals in the approximate proportions set forth.
Dated this 9th day of June 1900
JOHNSONS,
Applicant's Agents, 115, St. Vincent Street, Glasgow.