IMPROVEMENTS IN VALVES FOR LIQUID-PRESSURE (OR ELEVATION) APPARATUS
Year: 1884

page_text: I, WILLIAM WALKER FYFE, of 176, Crown Street, Aberdeen, in the County of
Aberdeen North Britain Plumber do hereby declare the nature of my invention for
"IMPROVEMENTS IN VALVES FOR LIQUID-PRESSURE (OR ELEVATION) APPARATUS
to be as follows:-
This invention relates to improvements in Valves where greater efficiency,
durability and results are obtainable. The efficiency and economy of Liquid
pressure or elevation apparatus, such as pumps, presses, rams & depend on the
action of those parts known as the Valves, and in order that my invention may be
understood, I herewith append a sheet with an explanatory drawing.
The body of the valve, which is shown in section, (1) consists of a circular
casting with an annular opening (2) accross which is a bridge (3) carrying a
spindle (4).
On this spindle is placed a disc or strong metallic washer (5) which encounters
the seating (6) which may be either formed as a rim more or less rounded; if the
disc is faced with rubber, Vulcanite, Vulcanised fibre, leather or other substance
best suited to withstand the chemical effect of the liquid to be acted upon; or it
may be formed with a taper seating into which the disc or washer may be ground.
(7) is a spring which causes the instantaneous closing of the washer (5) after the
raising impulse has been expended.
(8) is a guard holding (7) in position and (9) a nut holding (8) in its place, both
being screwed on spindle (4).
Drawing A. shows the Valve shut while B. shows the Valve open. B shows
a ground seating A a rounded rim.
Dated this 16th day of Tanno 1001.

page_text: I WILLIAM WALKER Fyfe of 176 Crown Street, Aberdeen in the county of
Aberdeen North Britain Plumber, do hereby declare the nature of my said
invention for IMPROVEMENTS IN VALVES FOR LIQUID PRESSURE OR ELEVATION
APPARATUS and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement :-
=
The efficiency and economy of liquid pressure or elevation apparatus such as
pumps, presses, rams, and so forth depends upon the action of those parts known
as the valves.
This invention relates to improvements in valves for liquid pressure or elevation
apparatus, whereby greater efficiency durability and higher results are obtainable,
at the same time the parts employed are simple and readily renewable if requisite.
In the drawings hereto annexed Figs 1, 2 and 3 are central sections of
constructions of valves according to this invention; Fig. 2 showing the valve in
open position. Fig. 4 is a plan of underside of the body of the valve.
1 is the body of the valve consisting of a circular casting with an annular
opening 2, across which opening is a bridge 3, carrying spindle 4. On this
spindle 4 is placed a disc or strong metallic washer 5 which encounters the spring
and the seating 6. The seating 6 may be formed as a rim more or less rounded or
flat see Figs. 1 and 3 in which case said washer 5 has a facing 5 of rubber,
vulcanite, vulcanized fibre, leather or other substance best suited to withstand the
action (mechanical or chemical) of the liquid acted upon. The seating 6 may be
formed taper or coned into which the disc or washer 5 may be ground, see Fig 2,
7 is a spring which causes the instantaneous closing of the valve after the raising
impulse has been expended, 8 is a guard holding spring 7 in position and screwing
upon spindle 4 to "set" the valve to the work required to be done and 9 is a lock
nut for holding the guard in its place when it has been "set" to the spring 7.
The spring 7 is shown in Figs. 1 and 2 as a disc of india rubber and in Fig 3 as
a spiral spring. The spring disc 7 Figs 1 and 2 acts as a pad for reduction of con-
cussion as well as a closing spring for the valve and together with the spiral spring
Fig. 3 an india rubber pad 7 is provided for purpose of reducing concussion.
In Figs. 1 and 3 the washer 5 and valve facing 5* are screwed together and in
Fig 3 the central boring through which passes spindle 4 is enlarged on a curve
towards the upper and lower sides as shown so as to allow of side play against the
metallic spring.
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 :-
In valves as herein specified the body 1, with opening 2, bridge 3, supporting
spindle 4, carrying the washer 5, acting against the seating 6, by a spring 7, to
close the valve and said spring 7 acted upon by screw guard 8 to set the spring to
the work together with the concussion reducing pad 7 or 7ª constructed and
operating as and for the purpose herein set forth.
SOU
·
WALTER A. BARLOW,
Agent for William Walker Fyfe.