IMPROVEMENTS IN VALVES FOR REGULATING THE FLOW OF WATER, TAR, GAS AND OTHER FLUIDS
Year: 1885

page_text: We CHARLES HOSKEN and SAMUEL BENJAMIN GOSLIN both of Jewin Crescent in
the City of London Engineers do hereby declare the nature of our invention for
"IMPROVEMENTS IN VALVES FOR REGULATING THE FLOW OF WATER, TAR, GAS
AND OTHER FLUIDS" and in what manner the same is to be performed to be
particularly described and ascertained in and by the following statement:—
This Invention has for its object improvements in valves for regulating the flow
of water, tar, gas and other fluids.
Our improved valves consist of flaps connected by arms with an axis. They are
so contrived as to give free and full passage to the fluid without contracting the
channel, and so also as to afford facility of access to all the moving parts without
disturbing the connection of the valves with the line pipes on which they are
applied.
In order that our said Invention may be most fully understood and readily
carried into effect we will proceed to describe the Drawings hereunto annexed.
DESCRIPTION OF THE DRAWINGS.
Figure 1 is a longitudinal section of a valve with double turned or faced
seatings. A is the body or case and A¹ A¹ are the seatings. B. B. are the flaps
adapted to these seatings and serving to close and regulate the passage of the fluid.
The flaps B are connected with arms B which are capable of turning about a
spindle B². The flaps B may be faced with leather or other elastic material C, and
they are attached by means of links D and pins E E to a nut F on the screw G.
The case A is closed by a cover H and on this cover there is a stuffing box I
forming a tight joint where the stem of the screw G passes out.
G is a hand wheel for turning the screw and so to move the flaps B to open,
close or regulate the passage for the fluid. As the flaps B. B close to their seats
the links D. D. approach more nearly to the same alignment and consequently any
desired amount of terminal pressure can be obtained to retain the flaps against
their seats.

page_text: The whole of the working parts of this valve, it will be seen are carried upon
the cover H and on removing this cover they come away with it and are
conveniently exposed when required.
Figure 2 is a longitudinal section of a single valve, and in this case the flap is
connected by the links D and pins E with a wedge f. A screw G works through a
box nut at K and the screw carries at its lower end the wedge piece f to which
the flap is connected.
As the valve closes the wedge piece comes against a corresponding face A2, upon
the case A and the wedge action causes the flap to be forced home to its face.
In this case also it will be observed that all the working parts of the valve are
carried upon the cover H and by removing the cover they can be taken away and
they are then conveniently accessible for repair.
Figure 3 is a longitudinal section of a valve in another form. The single flap B
is in this case connected by a link D directly with the lower end of a screw stem g
which however does not in this case pass through the stuffing box but works in a
nut carried by a separate stem forming a piece marked L and which piece passes
out through the stuffing box and receives a hand wheel by which it can be turned
to open and close the valve. The whole of the working parts in this arrangement
also are carried by the cover H and can be removed with this cover.
Figure 4 is an elevation.
Figure 5 is a longitudinal section and
Figure 6 a transverse section of a valve suited for low pressures and adapted to
open against the flow of the fluid. In this case, as will be seen, the axis B which
carries the flap B passes out to the exterior through a stuffing box upon a cover h
which has a hand wheel upon it. By turning the hand wheel the flap may be
brought up to its face or removed from it; when so removed it lies down in a
recess in the, lower part of the case A, leaving a clear flow for the fluid.
When the cover h is removed the flap B comes away with it.
Having now particularly described and ascertained the nature of our said
Invention and in what manner the same is to be performed, we declare that what
we claim is
1. The combination of the case A, flaps B. B links D, nut F, screw G, and
cover H all of the said working parts B. D and F being removeable with the said
cover H substantially as described in respect to Figure 1.
2. The combination of the case A, flap B, link Ď wedge f, screw G and cover H
the said working parts B. D. f and G being removeable with the said cover H
substantially as described in respect to Figure 2.
3. The combination of the case A, flap B, link D screw stem g, and nut piece L
stem and cover H all the said working parts B. D g and L being removeable with
the said cover H substantially as described in respect to Figure 3.
4. The combination of the case A, flap B spindle B¹ and cover the said flap and
spindle being removeable with the said cover h substantially as described in respect
to Figures 45 and 6.