Year: 1888

page_text: HARRY JOHN BURGESS, 42 New England Road, Preston, Brighton, Sussex Sign
Writer do hereby declare the nature of this invention to be as follows:-
A ball being moved by a spindle for the purpose of opening the valve the spindlo
upon its withdrawment allowing the ball to close upon a rubber or other seating
whereby the pressure of the water or other liquid ensures the closing of the valve,
the advantage claimed being that the force at work to ensure the proper supply is
hereby in this invention used to prevent leakage.
The spindle above mentioned being moved by a spiral shaped plug screwed down
as in ordinary bib taps, and as the thicker portion of the plug comes in contact with
the spindle the spindlo is moved as above stated.

page_text: I HARRY JOHN BURGESS of 42 New England Road, Preston, Brighton Sussex, Sign
Writer 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 relates to a certain novel construction or arrangement of screw down
tap, in which, by the screw down action of a spirally threaded plug, a piston having
a spherical end can be operated and a ball or other valve removed from its seat to
allow of the free passage of water and when the screw plug is turned the reverse
way, or screwed upwards, the valve closes under the pressure of water and is kept
watertight upon its seat.
The manner of constructing my improved tap is shown on the annexed drawings
in which at Figure 1 the plug A is shown with a left hand screw thread and with tho
lower end tapered or of conical shape its stem B passing through a packed gland C
in the usual manner of screw down taps.
D is a piston riding in an aperture in axial line with the tap socket E and has at
its back end a rod F with a valve G so arranged as to fit against an india rubber,
leather or other washer Hunder pressure of water as indicated by Figure 2, the
piston D'being free from the plug A.
The plunger D is guided in a chamber, the walls of which are sufficiently long to
centralize the valve G in its to and fro travel within the socket E.
The action of the screw plug in this tap, although operated in the same manner as
ordinary screw down taps, is reverso because of the plug A having a left hand screw
thread upon it, i.e. by turning the handle I to the left to open the tap, the screw
plug A descends and the conical portion acting gradually on the piston D forces the
valve from its seat and opens the passage through the tap and by turning the handle I
to the right the plug A rises within the barrel J and clears itself from the piston D
for the valve to close itself under the pressure of the head of water.
The valve G can be shifted, to any extent so as to regulate the outflow by the cone
portion of the plug A acting upon it, the valve G being fully open when the widest
part of the plug A is in contact with it.
In place of the rubber, leather or other washer H a metal washer may be employed
for a rubber or other valve to impinge against.

page_text: Having now particularly described and ascertained the nature of my said.inven-
tion and in what manner the same is to be performed I declare that what I
claim is
In screw taps, the conical ended screw plug having an action upon a piston D to
remove the valve G from its seat, said piston and valve having a free motion under
pressure to force the valve upon its seat, when the screw plug A is released from
contact with the piston as described and substantially as shown by the annexed
drawings.