Improvements in Apparatus for Automatic Supply of Water in Case of Fire.
Year: 1896

page_text: PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Automatic Supply of Water in
Case of Fire.
I, EDWARD BAYZAND ELLINGTON of Palace Chambers, Westminster, in the
County of London, Civil Engineer, do hereby declare the nature of this invention
to be as follows:-
This invention relates to apparatus for automatic supply of water in case of fire.
For this purpose, an injector worked by high pressure water, draws from a service
main or other source water, forcing it into a loaded accumulator from which a pipe
leads to sprinklers or other appliances for extinguishing fire. Check valves are
provided fo prevent the water thus delivered from flowing back to the mains;
also a valve controlling the supply of the high pressure water is opened by the
accumulator plunger only when that plunger is low, the valve being closed when
the plunger attains a certain height. If the plunger, owing to leakage of the
valve, should continue to rise, it may be arranged to lift an additional load and
thus cause a relief valve to open. In order farther to ensure safety, the apparatus
or parts thereof may be duplicated.
The apparatus described would usually be inert except when a demand is made
upon it in case of fire. It is, however, preferred to allow always a slight leakage
from the accumulator so as to cause an intermittent automatic action, thus keeping
the parts in condition to come into full action when required.
Dated this 15th day of May 1896.
ABEL & IMRAY,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Apparatus for Automatic Supply of Water in
Case of Fire.
I, EDWARD BAYZAND ELLINGTON of Palace Chambers, Westminster, in the County
of London, 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:-
This invention relates to apparatus for automatic supply of water in case of fire, as
1 shall describe referring to the accompanying drawings.
Fig. 1 is an elevation, and Fig. 2 is a plan, of apparatus according to this
invention.
Fig. 3 is a section of the supply valve C, and
Fig. 4 is a section of the relief valve E.
An injector, or, as shewn in Fig. 2, a pair of injectors A are worked with high

page_text: pressure water supplied by pipe a and drawn from a tank or reservoir R or from a
low pressure service main or other source, delivering into a pipe B leading to sprinklers
or other extinguishing appliances.
The supply of high pressure water to the injectors is controlled by a valve C operated
by a loaded accumulator D which communicates with the pipe B.
The valve C and its connections with the accumulator are so arranged, that when,
owing to large discharge from the pipe B, the plunger of the accumulator descends it
finally opens the valve C so as to give supply to B. As the valve C may leak causing
the accumulator plunger to rise when there is no discharge from the pipe B, the
plunger on reaching a certain height is preferably made to lift an additional load, so
that the pressure in the pipe B becomes increased until it is relieved by the opening
of a relief valve E.
As a precaution in case the valve E should stick, the accumulator plunger may at a
certain height act on a tappet connected by a chain or rod to the lever of the valve E
thus ensuring its opening.
Referring to Figure 3, shewing the construction of the valve C, a is the supply
of the high pressure water which, when the valve c is open passes by c¹ to the
injector or injectors.
The valve c has its rod passing out through packing to a yoke through which
passes the lever L which is pivotted at 7 and is linked to a tappet rod d at the
accumulator.
The other end c³ of the valve rod is enlarged and works through packing in a
cylindrical part of the slide case from which there is an opening c.
A secondary or pilot valve c has its rod linked to the lever L.
Owing to the pressure on the larger area of c³, the valve c is usually kept closed,
but when the lever L is. moved so as to move the valve c, and admit high pressure
water by the port e to a space behind a piston c' which is larger than c³, then
the excess of pressure on c' causes the valve c to move, opening the passage c¹ to
the injector.
The valve e is thus opened only a little, but when the accumulator plunger
descends so low as to act still farther on the tappet on the rod d the lever Lis
farther moved so that it meets the end of the slot in the yoke c² and farther
opens the valve c.
The relief valve E shewn in Fig. 4 communicates through e with the pipe B
and communicates by a pipe e with the reservoir or other discharge. The valve
is kept closed by a loaded lever e from which a rod or chain e extends upwards
at the side of the accumulator, having on its upper part a tappet which is acted
on by the accumulator plunger at a certain height, raising the lever and allowing
the relief valve to open.
The apparatus would naturally be inert except when it is required to supply
water for extinguishing fire. It is however preferable to keep the accumulator in
intermittent automatic action, so as to ensure that the apparatus is always in working
order. For this purpose there should be a slight leakage from the accumulator,
or the pipe B, so that when the accumulator plunger descends to act on the lower
tappet, the lever L is moved and the valve C is opened as described.
The accumulator plunger being thus raised acts on the upper tappet moving
back the lever L whereupon the valve C is again closed. This action is continuously
repeated.
The pipe B may be connected to the ordinary service main M, the connection being
provided with a shut off valve, and check valves m m to prevent the water in the
pipe B from flowing back into the service main.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. Apparatus for automatic supply of water in case of fire, comprising an injector
or several of these worked by high pressure water, a reservoir or other source of low

page_text: pressure supply whence water is drawn, a discharge pipe leading to extinguishing
appliances, an accumulator in communication with the discharge pipe, and a supply
and relief valve having their levers connected to tappets acted on by the accumulator
plunger, substantially as described.
2. The construction of supply valve substantially as described with reference
to Fig. 3.
DL: 191 of Tabanan 1907
ABEL & IMRAY,
Agents for the Applicant.