Improved Heating Apparatus.
Year: 1897

page_text: Date of Application, 6th Mar., 1897
Complete Specification Left, 6th Dec., 1897-Accepted, 15th Jan., 1898
'
PROVISIONAL SPECIFICATION.
Improved Heating Apparatus.
I, FREDERICK WILLIAM MCCULLOUGH, of 2, Longford Villas, in the City of
Belfast, in Ireland, Civil Engineer, do hereby declare the nature of this invention
to be as follows:
My invention relates to means for heating Buildings and Conservatories by a
portable self-contained and self-acting hot water circulating apparatus heated by
Gas.
It consists in the use of a water boiler with circulating pipes attached to it, and'
provided with a flue to carry away the Gas fumes, with which flue I connect a
number of spiral tubes passing through the contained water and the bottom of the.
boiler to the flames from a Bunsen or similar burner.
The boiler is placed upon a convenient and suitable stand arranged to receive
the burner at a proper level and to admit of the removal thereof for cleaning or
repair.
I keep the boiler supplied with water from a ball cock Cistern which is auto-
matic in its action and secures a uniform level of the water.
Improved Heating Apparatus.
I, FREDERICK WILLIAM MCCULLOUGH, of 2, Longford Villas, in the City of
Belfast, in Ireland, 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:
-
My invention relates to means for heating buildings and Conservatories by a
portable self-contained and self-acting hot water circulating apparatus heated by
Gas.
It consists in the use of a water boiler with circulating pipes attached to it
and provided with a flue to carry away the Gas fumes with which flue I connect

page_text: a number of spiral or zig-zag spiral tubes or flue pipes passing through the con-
tained water and the bottom of the boiler to the flames from a Bunsen or similar
burner.
The boiler is placed upon a convenient and suitable stand arranged to receive
the burner at a proper level and to admit of the removal thereof for cleaning or
repair.
I keep the boiler supplied with water from a ball-cock Cistern which is auto-
matic in its action and secures a uniform level. of the water.
2
In carrying out this invention instead of forming the spiral tubes or flue pipes
in continuous curved lines I prefer to arrange each of them with an angular
deviation from the spiral at a point or points in the length thereof and to lead them up
into a bulb connecting them with the main flue or pipe a little below the water
level in the boiler and so that their connection with it leaves a portion of the
under part of the bulb below the bottom of the tubes or flue pipes by which
arrangement I break or counteract any down or back draught through the main
flue or pipe and avert or minimize the risk of the flame being thereby
extinguished.
And in order that my said invention may be more fully understood I shall
now refer to the drawing on the Sheet hereunto annexed shewing the apparatus
in elevation, one side thereof being in section, and to the letters indicating the
several features and parts of such apparatus.
A, A, A, are small tubes or flue pipes within a water boiler having angular
deviations from the true spiral form and leading up through the bottom of the
boiler from the gas flames into a bulb, B, at the base of a slightly tapered main
flue or pipe, C, and a little below the water level in the boiler. D is a removable
cover for the boiler through the centre of which the main flue or pipe, C, is
passed and provided with a perforated and screwed steam escape cap, E. Through
the portable flue pipe, F, fitted closely over the end of the main flue or pipe, C,
above the boiler cover, 1), the fumes of the heated Gas are carried to the external
atmosphere. G is a draw off tap near the bottom of the boiler for cleansing out
the boiler and circulating pipes or supplying hot water if desired. H is a gauge
glass to indicate the level of the water in the boiler. I, I, are the flow and
return circulating hot water pipes attached to the boiler by the couplings, J, J,
so that they can be readily disconnected if the removal of the boiler is required.
Water is supplied automatically and kept at the regular water level, K, from the
small ball valve Cistern, L, which has a syphon pipe, M, connected with the
boiler by the coupling, S. N is the stand on which the boiler rests and which is
provided with a hinged inspection door, 0, whereby a Bunsen or other suitable
Gas burner, P, may be introduced or withdrawn at will. Gas is supplied through
the pipe, Q, which is connected to the burner by the coupling, R.
Having now fully described and ascertained the nature of my said invention
and in what manner the same is to be performed I would have it to be understood
that I do not claim as of my invention or the exclusive use of spiral or zigzag
spiral tubes or flues or bulbs or main flues or pipes except when the same are
constructed arranged and employed in the manner and for the purposes herein-
before described nor do I claim removable boiler covers, steam escape caps, draw
off taps, gauge glasses, couplings, ball valve Cisterns, Syphon or other pipes or
any of the separate mechanical parts of the apparatus I have described but I
claim
1. The use in water boilers of a number of spiral or zigzag spiral tubes con-
structed and employed substantially in the manner and for the purposes herein-
before described and shewn in the drawing hereunto annexed.
2. The use in water boilers of a bull connecting two or more spiral or bent tubes
with a flue pipe constructed and employed substantially in the manner and for
the purposes herin before described and shewn in the drawing hereunto annexed.
3. The combination and arrangement of parts constituting my Improved Heating

page_text: Apparatus constructed and employed substantially in the manner and for the
purposes herein before described and illustrated by the drawing hereunto annexed.
Dated this 4th day of December 1897.
HUGH HYNDMAN,
6 Chichester Street, Belfast, Agent for Applicant.