Improvements in Apparatus for Indicating the Flow and the Stoppage of Fluids in Pipes, Tubes, and Conduits.
Year: 1896

page_text: Date of Application, 3rd Oct., 1896
Complete Specification Left, 21st June, 1897-Accepted, 7th Aug., 1897
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Indicating the Flow and the
Stoppage of Fluids in Pipes, Tubes, and Conduits.
I, GEORGE CROYDON MARKS of 18 Southampton Buildings, Chancery Lane,
London, W.C., Consulting Engineer, (a communication from George Christie, of
42 Boulevard Bonne Nouvelle, Paris in the Republic of France, Architect), do
hereby declare the nature of this invention to be as follows:-
My invention relates to improvements in indicators for conduits used for con-
veying liquids or gases and has for its object to indicate if the liquid or gas is
running through so that leakage in the conduit system may be readily ascertained
after the stop cocks have been set.
My invention consists in the provision of a cylinder of glass or other transparent
material which is mounted at each end in flanges which are in turn secured by
flanges at either end of the cylinder bolted to each other. The transparent glass
cylinder I provide of such an interior diameter as to correspond with the interior
diameter of the conduit and I mount within the glass cylinder a helix formed upon
a spindle disposed axially in the glass cylinder and mounted in pivot bearings
provided upon each of the holding flanges of the cylinder. The width or diameter
of the helix is preferably less than that of the interior of the glass cylinder. The
liquid or gas which passes through the conduit or pipe impinges upon the con-
tinuous surface of the helix and effects its rotation. The passage or movement of
the liquid or gas within the cylinder will be indicated by the visible rotation of
the helix within.
I do not confine myself to the use of a helix as I may in some cases use vanes
where it is desirable to employ a cylinder of comparatively small length.
It is obvious that I may mount the helix or vanes in such a manner as to offer
but little obstruction to the passage of the contained fluid.
The cylinder may be provided at intervals in the conduit or pipe system as may
be required.
Dated this 3rd day of October 1896
Improvements in Apparatus for Indicating the Flow and the
Stoppage of Fluids in Pipes, Tubes, and Conduits.
I, GEORGE CROYDON MARKS of 18 Southampton Buildings, Chancery Lane,
ndon, W.C., Consulting Engineer (a communication from George Christie of 42
Price Rd

page_text: Boulevard Bonne Nouvelle, Paris in the Republic of France, Architect) do hereby
declare the nature of this invention and in what, manner the same is to be per-
formed to be particularly described and ascertained in and by the following
statement:-
My invention relates to improvements in indicators for conduits used for con-
veying liquids or gases and has for its object to indicate if the liquid or gas is
running through so that leakage in the conduit system may be readily ascertained
after the stop cocks have been set and is illustrated in the accompanying drawings.
My invention consists as illustrated in the accompanying sectional drawings in
the provision of a cylinder T of glass or other transparent material which is
mounted at each end in flanges QQ which are in turn secured by flanges B B at
either end of the cylinder bolted to each other. The transparent glass cylinder T
I provide of such an interior diameter as to correspond with the interior diameter
of the conduit A and I mount within the glass cylinder a helix H formed upon a
spindle disposed axially in the glass cylinder and mounted in pivot bearings P P
provided upon each of the holding flanges Q Q of the cylinder. The width or
diameter of the helix is preferably less than that of the interior of the glass
cylinder. The liquid or gas which passes through the conduit or pipe A impinges
upon the continuous surface of the helix and effects its rotation. The passage or
movement of the liquid or gas within the cylinder will be indicated by the visible
rotation of the helix within.
I do not confine myself to the use of a helix as I may in some cases use vanes
where it is desirable to employ a cylinder of comparatively small length.
It is obvious that I may mount the helix or vanes in such a manner as to offer
but little obstruction to the passage of the contained fluid.
The cylinder may be provided at intervals in the conduit or pipe system as may
be required.
By means of this apparatus a constant indication is available as to the passage
of the liquid, air or gas conveyed by the conduits or pipes to which it is applied.
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. An apparatus for indicating the flow of liquids, air or gases in conduits or
pipes in which a helix, vane or blades are caused to visibly rotate thereby
substantially as described.
2. Improvements in apparatus for indicating the flow of liquids, air or gases in
pipes or conduits substantially as hereinbefore described.
Dated this 21st day of Tune 190
MARKS & CLERK,
18 Southampton Buildings, London, W.C., and
13 Temple Street, Birmingham, Agents.