Improvements in or appertaining to Stop-Valves.
Year: 1896

page_text: Date of Application, 28th Aug., 1896
Complete Specification Left, 28th May, 1897-Accepted, 3rd July, 1897
PROVISIONAL SPECIFICATION.
Improvements in or appertaining to Stop-Valves.
I, SAMUEL CLAPHAM of Keighley in the County of York, Engineer and Iron-
founder, do hereby declare the nature of this invention to be as follows:-
That is to say-It relates to improvements in or appertaining to stop-valves of the
class known as "sliding" or those wherein the valve is moved transversely into and
out of its working position in the pipe or main for conveying water or other liquid or
the like in connection with which it is used and consists of forming or constructing
certain parts of, or appertaining to these valves in such a manner as to enable the
liquids passing through them to keep them free from all sediments or matter that
might otherwise interfere with the efficient performance of their functions.
In carrying my invention into effect I construct the barrel or cavity into which the
valve is moved or operates so that a space is left or formed beneath or at the
extremity of the valve when same is in position for stopping the pipe or main, and
into this space I form a way or passage for the flow of a portion of the liquid from the
principal way of the pipe or main by which menus on the valve being opened the
rushing or flowing of the liquid through this supplementary passage passes through
the space beneath the valve and carries with it any or all matter that might have a
tendency to lodge or be deposited in this space had not such provision for its washing
away being made.
To more certainly enable the liquid, passing through the space as above <lescribed,
to carry with it any sedimentary matter it may contain, the valve may be made so
that the passage through this space is opened before that through the main passage
of the pipes.
This formation of valve does not interfere in any way with the freedom for allowing
the faces or valves seating to be prepared in the manner already followed.
Dated this 27th day of August 190C
improvemen
appertaining to Stop-Valves.
I, SAMUEL CLAPHAM of Keighley in the County of York, Engineer and Iron-
founder, 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 follow-
ing statement :-
That is to say-It relates to improvements in or appertaining to stop-valves of the
class known as "sliding valves" or those wherein the valve is moved transversely into
and out of its working or effective position in the pipe or main for conveying water or
other liquid or the like in connection with which it is used, and consists in forming
or constructing certain parts of or appertaining to these valves in such a manner as
to enable the liquids passing through them to keep them free from all sediments or
[Price Rd 1

page_text: matter that might otherwise interfere with the efficient performance of their
functions.
In the accompanying sheets of drawings Fig. 1 is a sectional side elevation of n
valve constructed in accordance with my invention.
Fig. 2 is a similar view to Fig. 1 but shows a modification hereinafter explained.
Fig. 3 is a similar view to Fig. 2 but shows the valve partly opened.
In carrying my invention into effect I construct the barrel or casing a into which
the valve or wedge b is moved or operates, so that a space c is left or formed beneath
or at the extremity of said valve or wedge h when same is in position for stopping the
pipe or main d as shown by Fig. 1, and into this space c I form a way or passage f
for the flow of a portion of the liquid from the principal way as it is passing through
the main or pipo d, by which means, on the valve or wedge b being opened the rush-
ing or flowing of the liquid through this passage f passes through the space o
beneath the valve or wedge b and carries with it any or all matter that might have a
tendency to lodge or be deposited in this space c had not such provision for its wash-
ing away been made.
To more certainly enable the liquid passing through the space c as above described,
to carry with it any sedimentary matter it may contain, the valve or wedge b may be
made to have its lower edge of an inclined forin as shown by Figs. 2 and 3 so that the
passage through this space c is opened before that through the main passage of the
pipes as is illustrated by Fig. 3.
This formation of valve does not interfere in any way with the freedom for allow
ing the faces or valve seatings g to be prepared in the manner already followed.
Having now particularly described and ascertained the nature of my said invention,
and in what manner the saine is to be performed, I declare that what I claim is :-
1. In the production of stop-valves the formation of a cavity and passage leading
into said cavity in the casings or barrel parts of said valves substantially as herein
set forth and described.
2. In the production of stop-valves, the casings or barrel parts of these
constructed with supplementary cavities as described, and the valve parts of inclined
formation fitting into same to open the passage through the cavity prior to being
withdrawn from covering the passage through the main or pipe substantially as
specified.
3. Stop-valves constructed and arranged to operate substantially as herein
specified.
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100k