An Improved Form of Apparatus for Heating a Domestic Water Supply.
Year: 1896

page_text: Date of Application, 27th Apr., 1896
omplete Specification Left, 27th Jan., 1897-Accepted, 27th Apr., 1877
PROVISIONAL SPECIFICATION.
An Improved Form of Apparatus for Heating a Domestic Water
Supply.
I WILLIAM WILSON of 50 King Street Manchester, Engineer do hereby
declare the nature of this invention to be as follows:-
This invention relates to improvements on Lettera Patent No. 5724 granted to
me on the 17th day of March 1893 for "Improved method of heating a domestic
water supply and apparatus therefor" and has for its object to simplify the form
of apparatus employed in carrying out iny invention.
In performing this modification of my invention I employ a low pressure nou-
explosive or open boiler as in my former specification but in place of the immersion
tank and cylinder described therein I substitute an annular enclosed chamber or its
equivalent preferably of copper enclosed or immersed in and surrounded by the
water contained in the low pressure boiler aforesaid.
This annular chamber contains the water used for the domestic supply and which
water is heated by the water contained in the boiler and is in communication by
flow and return pipes with a separate enclosed storage cylinder in a manner similar
to that adopted in the ordinary circulating system.
The water level in the open boiler may be kept up by means of a ball float or in
any other convenient manner.
It will be obvious that by employing an open or low pressure boiler to heat the
water for the domestic supply the danger from explosion experienced where a
high pressure or enclosed boiler is employed to heat the water direct is entirely
obviated.
This improved form of apparatus consisting of a chamber immersed within the
boiler itself is also applicable to a duplex system for warming and draw off purposes
and also for the provention of incrustation.
Dated this 25th day of April 1896
EDMUND WILSON,
Agent for the Applicant.
COMPLETE SPECIFICATION.
An Improved Form of Apparatus for Heating a Domestic Water
Supply.
I, WILLIAM WILSON of 50 King Street, Manchester, 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 improvements on Letters Patent No. 5724 granted to
me on the 17th day of March 1893 for improved method of heating a domestic

page_text: water supply and apparatus therefor, and has for its object to simplify the form of
apparatus employed in carrying out iny invention.
Since filing my Provisional Specification I find that the employment of an
immersed closed vessel containing water to be heated by the surrounding water
in an open boiler and for the purpose of preventing boiler explosions is not new
but this invention also consists in the employment of a duplex system for heating
and draw off purposes as hereinafter described with the aid of the accompanying
.drawing.
In performing my invention, the usual hot water boiler A fitted with flow
pipe B and return pipe C. and in connection with a system of coils, pipes or
radiators D. D. for heating purposes but in accordance with my invention I also
use the water within the boiler A to heat a duplex service for domestic draw off
purposes by employing an immersed vessel such as a coil E as shown. The water
passing through this immersed vessel E is heated by the surrounding water in the
boiler, and it circulates in the usual manner by flow pipe F and retura pipe G, and
hot water cylinder II and is utilised for draw off purposes.
The advantages of this duplex system of heating and draw off services is that
ordinary iron pipes may be employed for the beating apparatus, whilst a cleaner
and rarer metal may be used for the domestic service. Also, owing to the same
neating water circulating continuously through the boiler in place of a frequent
fresh supply of deposit being precipitated the boiler is kept comparatively frea
from incrustation.
Having thus particularly described and ascertained the nature of this inven
tion, and in what manner the same is to be performed, I declare that what
.1.claim is :-
The use and employment of a boiler containing an immersed chamber sub-
stantially as and for the purposes of a duplex system as hereinbefore described aud
illustrated on the accompanying drawing.
Dated this 23rd day of January 1897.
EDMUND WILSON,
Agent.