Improvements in the Construction of Cocks and Valves.
Year: 1892

page_text: Date of Application, 8th Feb., 1892
Complete Specification Left, 3rd Nov., 1892-Accepted, 17th Dec., 1892
PROVISIONAL SPECIFICATION.
Improvements in the Construction of Cocks and Valves.
I, THOMAS WALTER BARBER, Engineer, of 5 Page Street, Westminster, in
the County of Middlesex, do hereby declare the nature of my said invention to
be as follows:-
This invention consists of improvements in the construction of that class of
regulating valves, technically & generally known as cocks:-stop-cocks, bib-
cocks &c., & is substantially a device for the obtaining of a self closing or shutting
movement upon the said cocks. It is further applicable to all valves & cocks
which have a "wing" or similar valve.
To obtain this movement, I employ a spindle, to the end of which a valve, coned,
ball, wing, or other suitable construction is attached the other end of the spindle
is attached to the regulating handle or wheel. On the spindle a screw thread is
provided, working in a "nut" in the body of the cock or valve, so that when the
spindle is rotated, a lateral movement is also imparted to it which serves to lift the
valve from its seat. The pressure fluid is admitted preferably behind the valve
& thus always tends to close the valve. To further secure its closing, a spiral
spring, to exert torsional pressure is attached to the spindle & cock body & thus
prevents any possible sticking of the thread & nut. In the place of the said thread
& nut, I sometimes employ a snug on the spindle, working against a projecting cam-
face in the cock-body, being in fact, part of a screw thread & nut. This secures
the same motion as the screw & nut previously described & also allows of the valve
being rotated on its seat to keep it clean & bright. The seat may be of leather or
other material, or metal to metal, as preferred.
The general construction of the valve or cock is similar to the ordinary patterns
& admits of the usual modifications to suit varying pressures, uses, positions &c.
1000
T. W. BARBER.
COMPLETE SPECIFICATION.
Improvements in the Construction of Cocks and Valves.
I, THOMAS WALTER BARBER, Engineer, of 5 Page Street, Westminster, in
the County of Middlesex, do hereby declare the nature of my said 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 consists of improvements in the construction of that class of
regulating valves, technically & generally known as cocks-stop cocks, bib-
cocks &c.; & is substantially a device for the obtaining of a self-closing or shutting
movement, upon the said cocks. It is further applicable to all valves & cocks
which have a wing or similar valve.
To obtain this movement, I employ a spindle, such as is shewn in the accom-
panying drawings, A; to the end of which a valve, B, coned, wing or ball, or other
suitable construction, according to the purpose of the cock, is attached. The
other end of the spindle is attached to a regulating handle or wheel, C, which may
be of any desired form. On the spindle, A, a screw thread, D, is provided,
working in a nut, E, in the body of the cock, F; so that when the spindle is
rotated, a lateral movement is also imparted to it, which serves to lift the valve B
from its seat, K. The pressure fluid is admitted behind the valve & thus always
tends to keep the valve on its seat. To further secure its closing, a spiral spring, G,
n.

page_text: (which may be of wire, as shewn, or of the coiled or volute kind), to exert torsional
pressure, is attached to the spindle, A, & cock body, F, & thus prevents any
possible sticking of the thread & nut."
In the place of the thread & nut, D & E, I also employ a snug, H, on the
spindle, working against a projecting cam face, I, in the cock body, F; as shewn
in Figure 2; being in fact, part of a screw thread & nut. This secures the same
motion as the screw & nut previously described, at the same time that it very con-
siderably simplifies & cheapens the construction of the cock. This cam & snug
may be placed outside the cock body; the snug being in the form of a pin fixed in
or cast on the rim of the boss of the handle, M, & the cam, or slot in the rim of the
spring box, O; if desired.
This cam & snug motion allows of the valve being rotated on its seat, K, after
it has closed down & thus automatically ensures that the valve seat shall be cleaned
every time the cock is used.
The seat, K, may be of leather or other material, or "metal to metal," as
preferred.
Figure 1 shews a section of a cock suitable for domestic use & for blow off cocks,
try cocks &c. The packing L round the spindle, A, is shewn of various forms in
the different figures; each form being suitable to some of the varying requirements
of pressure, gas & fluid.
:
Figure 2 shews the cam & snug arrangement, as applicable to any of the other
designs, in the place of the screw & nut.
Figure 3 is an end elevation of Figure 1.
Figure 4 is an example of the extended application of the cock for use in guage
glass fittings.
Figure 5 shews the arrangement of the cock for " straight way" fittings. The
spindle, A, is shewn lengthened, R, into the lower screwed cap, P, to guide the
valve properly. The screw, D, may be placed at this lower end, R, with a nut in
the cap, P, if desired.
Having now particularly described & ascertained the nature of iny said inven-
tion & in what manner the same is to be performed, I declare that what I
claim is :-
1. The application of a spring, coiled, volute or spiral, exerting torsional
pressure, to a
spindle & cock body, of the forms substantially as shewn in my
drawings & herein before described.
2. The use of a cam slide & a snug as herein described, placed in the body of the
cock or externally, to secure the lift of the valve by means of a rotating spindle, in
cocks constructed substantially as herein described.
3. The construction of cocks & valves, for various purposes, generally in
accordance with the drawings & substantially of the designs as herein described.
October 29th 1892.
T. W. BARBER.