Improvements in Apparatus for Detecting and Indicating the Flow of Water in Pipes, and in Cocks Embodying such Apparatus.
Year: 1895

page_text: Date of Application, 1st Jan., 1895
Complete Specification Left, 28th Sept.. 1895-Accepted, 7th Dec., 1895.
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Detecting and Indicating the
Flow of Water in Pipes, and in Cocks Embodying such
Apparatus.
1, EDWIN JAMES WHITE, of 20 Erpingham Road, Putney, in the County of
Surrey, Civil Engineer, do hereby declare the nature of this invention to be as
follows:
The object of this invention is to detect and indicate when there is any flow of
water in a pipe and thus provide a tell-tale of water running to waste.
A chamber is provided in the pipe, the eud next the flow being cylindrical whilst
the other end is conical or enlarged.
A long piston fits the cylindrical end of the chamber and works in guides in the
enlarged end. No water therefore can be delivered from the pipe until the piston
has been carried by the flow the whole length of the cylindrical part of the
chamber. The piston is connected to an indicator outside the pipe so that the
slightest flow of water moves the indicator a considerable and very perceptible
distance and graduations may be provided so that the further movement of the
indicator shows approximately the quantity of water passing through the pipe.
The indicator preferably consists of an arm fixed on a shaft passing through a
stuffing box in a pocket at the side of the pipe. Inside the pocket there is a second
arm also fixed to the shaft projecting into the chamber and having its end resting
on the top of the piston or connected to it. Or the indicator may consist of a rod
or wire passing through a stuffing box.
Apparatus such as above described may form part of a stop cock on the pipe.
In this case a screw is provided whose end bears on the piston or on the arm
resting upon it so that when the screw is turned the piston is forced down and held
against a seat at the bottom of the chamber.
Dated this 31st day of December 1894.
COMPLETE SPECIFICATION.
Improvements in Apparatus for Detecting and Indicating the
Flow of Water in Pipes, and in Cocks Embodying such
Apparatus.
I, EDWIN JAMES WHITE, of 20 Erpingham Road, Putney, in the County
of Surrey, Civil 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 :-
The object of this invention is to detect and indicate when there is any flow of
water in a pipe and thus provide a tell-tale of water running to waste.
"
A chamber is provided in the pipe, the end next the flow being cylindrical whilst
the other end is conical or enlarged.
:

page_text: closer between which it lies and so closes an electric circuit through them and
rings a bell until the flow ceases.
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 :-
1. Apparatus for detecting and indicating the flow of water in pipes having a
piston which must be moved a considerable distance before any water can pass-
substantially as described.
2. Apparatus substantially as described and shown in the drawings.
Dated this 14th day of September 1895.
EDWIN JAMES WHITE..