Year: 1899

page_text: Date of Application, 31st July, 1899
Complete Specification Left, 12th Dec., 1899--Accepted, 27th Jan., 1900
JOSEPH COCKBILL, 30, Coston Street, Deptford, Brass Finisher, EDWIN CHAM-
BERLIN, Brass Finisher, CHARLES CHAMBERLIN, Coppersmith, both of 45, Wood-
stock Road, Gipsy Lane, Upton Park, Essex, do hereby declare the nature of this
invention to be as follows:-
The renewable valve is screwed at A and the thread is turned out in front B so
as to form a guide for the cage C. The turned part B has a narrow mitre at the
top D. The cage C is screwed on the outside E with a collar on the top which
is mitred on the bottom G and has two slots on the top H for the key I to connect
or disconnect the cage C. The collar of the cage C is bored out in front so that the
key I will not damage the seating and the cage C is bored out to suit the valve.
The top of the valve is similar to an horseshoe so that it can be put on the
spindle or taken off without any trouble.
11 11:
1L 3
14 T1 1000
JOSEPH COCKBILL.
EDWIN CHAMBERLIN.
CHARLES CHAMBERLIN.
We, JOSEPH COCKBILL, Brass Finisher, of 30, Coston Street, Deptford, EDWIN
CHAMBERLIN, Brass Finisher, CHARLES CHAMBERLIN, Coppersmith, both of 45,
Woodstock Road, Upton Park, Essex, do hereby declare the nature of this inven-
tion 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 an improved construction of valve for use with
steam water or the like whereby the valve seating can be readily removed and
renewed without the necessity for removing the whole valve casing, thus permitting
of a renewal of the wearing surfaces as they become worn independently of the
valve casing.
In order that this invention may be more clearly understood reference is had to
the drawings which were filed with our Provisional Specification
The valve seating is screwed at E and is adapted to engage in the screw thread A
formed upon the valve casing. The upper portion of the valve seating is
considerably larger than the screw threaded portion E and is provided with a
conical portion G which when the seating is in place fits close upon the bevelled
TD 077

page_text: edge D of the stepped portion B of the casing. The upper portion of the seating
is adapted to receive the valve when it is screwed down.
In order to remove the seating, the valve and spindle are removed and the
seating can then be unscrewed by means of a key I (shewn separately) adapted to
engage in the slots H.
It will therefore be seen that a simple construction is provided whereby the
seating of the valve can be readily removed and renewed without removing the
whole casing as well, and the life of any particular valve will be considerably
lengthened as the portion which wears out soonest-the seating-can be renewed
as required.
The valve is preferably connected to the valve spindle by means of the over-
lapping lugs engaging over the flange on the spindle.
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 :-
A means whereby the seating in a valve can be removed and renewed com-
prising a valve seating adapted to be screwed into place and having an enlarged
portion bearing upon the casing and forming the bearing surface for the valve,
cross slots being provided whereby the seating can be screwed or unscrewed into
or out of place by means of a suitable key when the valve and spindle are removed,
substantially as described with reference to the drawings.
Dated this 19th day of December 1890
JOSEPH COCKBILL.
EDWIN CHAMBERLIN,
CHARLES CHAMBERLIN.