Improvements in Self-closing Cocks.
Year: 1899

page_text: Date of Application, 4th May, 1899
Complete Specification Left, 19th Jan., 1900-Accepted, 17th Mar., 1900
PROVISIONAL SPECIFICATION.
Improvements in Self-closing Cocks.
WILLIAM HENRY CARRINGTON, of 73, Leicester Road, East Finchley, in the
County of Middlesex, Merchant, and JAMES MEIKLEJOHN, of 91, Parkgrove Road,
Leytonstone, in the County of Essex, Engineer, do hereby declare the nature of
this invention to be as follows:-
-
A cock made of wood brass or any other suitable material, having a tube passing
through an enclosed circular or other shaped box adjustable either above or below
the tap. The means employed in this invention to close the cock or valve are
a spring, preferably spiral, fixed at one end to a fixed ring or hook or other pro-
jection at a suitable position inside the said circular or other shaped box, and
the other end of the said spring is secured to a ring, hook or other suitable
projection from the said tube or plug which passes through the box. The tube
or plug when being turned on expands the spring which is so arranged that it
acts in a horizontal position, and on the tube or plug being released by removing
the fingers from it, the contraction of the spring causes the. tube or plug to be
returned to the position from which it was moved, bring the solid or closing part
of the plug or tube against opening through which the fluid flows when the cock
or valve is open.
By this arrangement instead of the cock or valve having to be turned off after
being-turned on as in cocks in ordinary use, returns, on being released, to the
desired position, and thus securely self-closes the outlet for the fluid.
"Dated this 3rd day of Mar 19
1900
WILLIAM HENRY CARRINGTON.
JAMES MEIKLEJOHN.
COMPLETE SPECIFICATION.
Improvements in Self-closing Cocks.
We, WILLIAM HENRY CARRINGTON, of 73, Leicester Road, East Finchley, in the
County of Middlesex, Merchant, and JAMES MEIKLEJOHN, of 91, Parkgrove Road,
Leytonstone, in the County of Essex, Engineer, 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 for improvements in self-closing cocks has for its object to
provide a simple device whereby it is impossible that a tap or cock can be left
running but as soon as the force by which the tap or cock is turned to open is
removed, will automatically close itself thus preventing waste of the liquid for
which the tap or cock is used through being inadvertently left in the turned on
position.
--
In order that this invention may be more clearly described reference is had to
the accompanying sheet of illustrative drawings on which
Fig. 1 is a sectional elevation of a cock constructed according to this invention
and

page_text: Fig. 2 is a sectional plan on the line' A B, Fig. 1 and Fig. 3 shows detail
views.
.
Above the cock proper a small casing A is arranged having a removable cap A'
of any suitable shape and which may be ornamented in character if desired.
Upon an extension B of the plug B of the cock a pin 132 is mounted.
Within the casing A a curved adjustable stop of metal C is fitted of length
slightly greater than a semicircle as shown in Fig. 3 and this is attached by means
of a screw pin D also shown in Fig. 3 to the cock casing, the upper end of the
pin 1) serves a similar purpose as the upright projection or pin or pillar B2 so far as
relates to the securing at one end of the adjustable spring E.
The movement of the plug B is regulated by the distance between the two ends
of the curved adjustable stop C which act as stops for the extension B¹.
When it is desired to open the cock for the passage of liquid the handle is
turned as far as desired and held in that position as long as required.
On releasing the handle the adjustable spring E adjusted to pins D and B2
which in the opening of the cock has been extended contracts and draws the
pin B into its normal position thus closing the cock automatically and to prevent
any loss of liquid through the tap 'or cock being inadvertently left open..
Should it be desired that the tap or cock should open on turning to the left
instead of the right the pin D can be removed thus unfixing the curved adjustable
stop C and the latter turned over so as to lie on the opposite side of the plug B,
the pin being then again fitted and it will then be seen that the movement of
the extension B is restricted in the opposite direction.
This invention may be applied to any construction of taps or cocks so long as
the opening or closing is effected by the rotatory movement of the regulating
portion through an approximate quarter circle as will be clearly understood.
If desired the pins B D can be replaced by rings or hooks to which the adjust-
able spring E is attached and the curved adjustable stop C can be replaced, if not
required to be reversible by fixed stops.
To secure the lower end of the plug B a small screw cap G, shown in section
in Fig. 3 is fitted into which the end thereof screws.
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) An improved self-closing cock having an extension upon the plug a spring
attached thereto at one end and a fixed point of attachment upon the casing for
the other end of the said spring substantially as described and for the purposes
specified.
(2) An improved self closing cock having an extension upon the plug a spring
attached thereto at one end a fixed point of attachment for the other end of the
said spring and a reversible curved stop by which the movement of the plug is
regulated substantially as described and for the purposes. specified.
(3) In a self closing cock a casing A plug B having extension B and pin B²
curved stop C, pin D and adjustable spring E all arranged and operating sub-
stantially as described with reference to the drawings.
(4) In a self closing cock a casing A plug B having extension B' and pin B2
curved adjustable stop C pin D and adjustable spring E and screw nut G,
all arranged and operating substantially as described with reference to the
drawings.
Dated this 19th day of January 1900.
WILLIAM HENRY CARRINGTON.
JAMES MEIKLEJOHN.