Improvements in Cocks and Valves
Year: 1898

page_text: Date of Application, 12th Dec., 1898
Complete Specification Left, 22nd Apr., 1899-Accepted, 2nd June, 1899
ALFRED HODGSON SMITH, Gamston House, Radcliffe Road, West Bridgford,
Nottingham, Brass Founder, do hereby declare the nature of this invention to be
as follows:-
I construct the seat of the valve or cock with an orifice of the required shape
the lower part of which is circular with a V shaped extension terminating into
a cylinder shaped orifice or receiver. In the lower part of the seat I place a metal
valve or protecter fitting in the lower ✓ shaped seating I then place on the
metal or V shaped valve, a woodite or other rings in the cylindrical part of
the seating. On this ring a stopper plate is placed having a projection on the
lower end passing through the ring and through the lower metal V-shaped valve
terminating with a screw threaded shank and is screwed up by a nut which
tightens & holds together metal V shaped valve & the woodite or other rings thus
forming a metal valve seated by a metal seat and a metal cylinder seated by a
woodite metal or other rings protected by the lower V shaped valve, the whole
of which is held down by a screw threaded spindle, such an arrangement insures
a tighter & more reliable high preasure valve or cock.
Dated this Ninth day of December 1898.
Improvements in Cocks and Valves,
ALFRED HODGSON SMITH, of Gamston House, Radcliffe Road, West Bridgford,
Nottingham, Brass 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 following statement:—
This invention relates to improvements in wheel valves and screw cocks and
has for its object the construction of a simple and efficient double seated valve
with a renewable valve.
According to this invention the lower valve seat is conical and the upper seat
is in the form of a cylinder which may be slightly conical. The valve comprises
a conical metal plug to fit the lower seat and one or more cylindrical washers of
metal, woodite or other suitable material which is turned to fit the upper valve
seat.
In the accompanying drawings Fig. 1 is an elevation of a valve broken to
show the arrangement of the valve and seat. Fig. 2 is a section of a modified
cent of the wolve and seat

page_text: The
The valve casing a Fig. 1 is of the usual shape and the interior division is
shaped to form a lower conical seat b and an upper cylindrical seat c which may
be parallel or slightly conical. The valve spindle is connected to the valve
part d by any of the usual means which allow of the spindle turning indepen-
dently of the part d and on the underside of the part d there is a spindle e.
upper part of this spindle is fitted with one or more washers f of a slightly
compressible material such as woodite, which is turned to correspond with the
shape of the seat c. Under the washer or washers f there is a metal plate g which
is turned to fit the seat band is held in position by the nut h. The plate
be screwed on the spindle as shown or it may be bored to fit a plain end on the
spindle, while the spindle in the washer f may be conical and shorter than the
washers so that when screwed down it tends to expand the washer or washers f.
The plate g forms one face of the valve and also prevents the fluid passing
through the valve from acting upon the material of the washer f.
may
In the modification shown in Fig. 2 the spindle is connected to the valve
part das in the first arrangement. The piece d is in the modification made
conical and is fitted with two rings n and o which are preferably of metal but
may be of other suitable material. These rings are turned on their outside
circumference to fit the slightly conical seat c and are divided by an inclined
cut similar to ordinary piston rings. The lower part of the valve is fitted with
a plate g which has a face fitting the seat b as in the first arrangement.
With a valve of this construction a joint is made at the seat by the plate y
and at the seat c by the rings n and o which are pressed thereon by the conical
piece d.
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. A valve with conical and cylindrical seats constructed substantially as herein
set forth with reference to the accompanying drawings.
2. In a valve with conical and cylindrical seats the use of split, expansive rings
for making a joint on the cylindrical seat substantially as herein described with
reference to Fig. 2, of the accompanying drawings.
Dated this 22nd day of April 1899.