Improvements in Feed Check Valves for Steam Generators.
Year: 1896

page_text: Date of Application, 5th Mar., 1896
Complete Specification Left 3rd Dec. 1896-Accepted 13th Feb., 1897
Date of Application, 5th Mar., 1896
Complete Specification Left 3rd Dec. 1896-Accepted. 13th Feb., 1897
PROVISIONAL SPECIFICATION.
Improvements in Feed Check Valves for Steam Generators.
1, FRANCIS WILKINSON, of 157 Dukinfield Road, Hyde, in the County of
Chester, Foreman Mechanic, do hereby declare the nature of this invention to be
as follows:-
My invention relates to improvements in feed check valves for steam generators
and the object of my improvements is to construct a check valve which is readily
accessible for examination and repairs without interrupting the feed or the working
of the boiler.
I accomplish this object by fitting two check valves in one valve casing; one of
these valves which is regulated by a screwed spindle or equivalent as usual controls
the ordinary inlet passage from the feed to the boiler or other steam generator;
the second valve is an auxiliary valve which controls a bye pass or auxiliary inlet
passage from the feed to the boiler which bye pass is kept normally closed by a
valve plug fitted within the casing.
When access is desired to the ordinary check valve for examination or repair
the plug is turned partly round thereby closing the ordinary inlet passage and
opening the auxiliary passage without interrupting the feed or working of the
boiler.
Dated this 4th day of March 1896.
H. B. BARLOW & GILLETT,
Agents for Applicant.
Improvements in Feed Check Valves for Steam Generators.
1, FRANCIS WILKINSON, of 157 Dukinfield Road, Hyde, in the County of
Chester, Foreman Mechanic, do hereby declare the nature of this invention aud
in what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement:-
My invention relates to improvements in feed check valves for steam generators
and the object of my improvements is to construct a check valve which is readily
accessible for examination and repairs without interrupting the feed or the working
of the boiler.
I accomplish this object by fitting two check valves in one valve casing; one of
these valves which is regulated by a screwed spindle or equivalent as usual controls
the ordinary inlet passage from the feed to the boiler or other steam generator;
the second valve is an auxiliary valve which controls a bye pass or auxiliary inlet
passage from the feed to the boiler which bye pass is kept normally closed by a
valve plug fitted within the casing.

page_text: In the accompanying sheet of drawings—
Figures 1 and 2 are sectional elevations of my improved feed check valve and
Figure 3 is an outside elevation of Fig. 2.
In these views, A designates the ordinary check valve, B the second or
auxiliary check valve, C the valve casing, D the ordinary feed inlet passage,
E the bye pass or auxiliary feed inlet passage and F the valve plug fitted within
the casing C.
When access is desired to the ordinary check valve A. for examination or repair
the plug F is turned partly round thereby closing the ordinary inlet passage D'and
the valve A can then be examined by taking off the cover H. When the plug F
is turned to close the ordinary inlet passage D the movement of the plug opens the
auxiliary passage E without interrupting the feed or the working of the boiler. In.
like manner the check valve B can be examined when the ordinary inlet passage D
is open by unscrewing the cap G.
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 :-
The combination with a valve casing provided with ordinary and auxiliary feed
inlet passages from the feed to the boiler or the like, of the two check valves A
and B and the valve plug F all substantially as and for the purposes herein set
.forth.
Dated this 2nd day of December 1896.
H. B. BARLOW & GILLETT,
17 St. Ann's Square, Manchester, Agents for Applicant.