IMPROVEMENTS IN PUMPS
Year: 1885

page_text: We, WILLIAM BROWN and CHARLES NEALE MAY- both of North Wilts Foundry
Devizes in the County of Wilts, Engineers do hereby declare the nature of said
Invention for "IMPROVEMENTS IN PUMPS " to be as follows:-
Our Invention has for its object to provide self acting simple and cheap means
for rendering it easy to start the working of pumps without need for exhausting.
the air from the rising main but only from the pump itself and from the suction
pipe. According to our Invention we provide in the T piece or bend or in or on
the pump itself or the outlet therefrom a valve seat in proximity to which is
mounted a flap or other form of valve capable of turning upon a hinge or being
lifted off its seat so that it opens and closes the passage through the valve seat it
being opened in a direction away from the pump that is to say in the same
direction as that of the discharge. The pivot of the hinge to which the valve is
fixed or other part in connection with the valve may extend to outside the pipe or
casing in which the valve is situated and be provided with a handle for operating
the valve by hand when required. This one valve fulfils the office of the two
valves ordinarily used and known as the bottom and top valves.
J. HENRY JOHNSON,
47, Lincoln's Inn Fields, London, W.C.,
Agent for the said William Brown
and Charles Neale May.
Improvements in Pumps.
We WILLIAM BROWN and CHARLES NEALE MAY both of North Wilts Foundry
5 Devizes in the County of Wilts Engineers 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:-
Our Invention has for its object to provide a self acting simple and cheap means
for rendering it easy to start the working of pumps without need for exhausting

page_text: .
the air from the rising main but only from the pump itself and from the suction
pipe. According to our Invention we provide in the T piece or bend' or in or on
the pump itself or pipe fixed to it or the outlet therefrom a valve seat in proximity
to which is mounted a flap or other form of self acting valve capable of being
opened by the flow of the fluid or being lifted off its seat so that it opens and
closes the passage through the valve seat it being opened in a direction away from
the pump that is to say preferably in the same direction as that of the discharge.
The pivot of the hinge to which the valve may be fixed or other part in connection
with the valve may extend to outside the pipe or casing in which the valve is
situated and be provided with a handle for operating the valve by hand when
required. This one valve fulfils the office of the two valves ordinarily used and
known as the bottom and top or suction and delivery valves.
And in order that our said Invention may be fully understood we shall now
proceed to describe with reference to the accompanying Drawings a way in which
it may be carried into practical effect.
The said drawing represents views at right angles to each other of a pump
provided with this Invention, Figure 1 being a side view and Figure 2 a front
view partly in section. The lower part of the pump A is or may be of the usual
or ordinary construction and requires no particular description here. At the outlet
from the pump is a chamber B through which the discharge takes place. At the
bottom of this chamber is an orifice C around which is a proper seating for the
valve D which is here shewn as being a flap valve mounted upon a rod E which
extends to outside the chamber B and is there provided with a handle F by which
the valve can be operated as required. The dotted lines shew the raised position
of the valve.
S
When the valve is closed the ejector has only to eject the air out of the pump
and suction pipe instead of having to exhaust the air also out of the rising main
as usual owing to the situation of the top or delivery valve as hitherto. used but
which is not used when our Invention is employed.
Having now particularly described and ascertained the nature of our Inven-
tion and in what manner the same is to be performed we declare that what
we claim is
First. A pump provided with a valve arranged and operating substantially as
and for the purpose hereinbefore described. .
Second. The combination with a pump of.a valve chamber and flap valve
arranged and combined with the pump and capable of being operated as herein-
before described and illustrated by the accompanying drawings.
Dated this 28th day of November 1885
WILLIAM BROWN.
CHARLES NEALE MAY.