RAPID HEATING OF WATER BY GAS
Year: 1885

page_text: I, JOHN HART of No 13 Gun Street Reading in the County of Berks Ironmonger
do hereby declare the nature of my invention for THE RAPID HEATING OF WATER
BY GAS to be as follows:-
A metal cylinder (S) with an outer metal case (T) 1½ inches larger in diameter
allowing for the free passage of air between the two.
"
The inner cylinder is supported on a cast iron base (Q) with 3 legs upon
which a "jeti
"
or
atmospheric" gas burner (P) is fixed with a shield plate (R)
underneath.
Cold water is introduced at the top of the cylinder through a tubular ring (C)
perforated at intervals to discharge on the sides of the cylinder and with an arm (D)
projecting into the centre of the cylinder and discharging upon a series of metal
plates and cones connected underneath each other by means of metal clips (F) and
rivets as in the accompanying drawing viz
1. A metal dome (E) turned up about " at the outer edge and perforated at
intervals.
2. An inverted cone (G).
3. Another ditto (H).
4. A metal dome
(I).
5. An inverted cone (K).
6. A metal basin (L) with a number of small metal tubes (M) discharging upon
the metal cone (O).
7. An inverted cone (N) to receive water from the sides of cylinder and discharge
it upon cone (0) from which it is delivered through spout (U) heated to any
required temperature.
The cylinder is closed at the top with a loose cover (B) from which products of
combustion are discharged by means of a pipe (A) which may be extended if

page_text: Fig. 5 is a plan of the gas burner used.
S. is a metal cylinder with a removable cover B which is provided with a hole
or nozzle A in the centre, to which a pipe can be attached for the escape of products
of combustion.
Tis an outer cylinder 1" larger than cylinder S and allowing a free passage of
air between the two.
V. is the fitting to which the gas supply must be attached-it is provided with
2 taps W, the larger one supplying the gas burner P and the sinaller one being
fitted with a swivel arm and gas jet which passes through the hole provided in the
cylinders S and T for lighting the gas burner P.
The hole above mentioned serves also as an inspection hole through which the
height of the flames of the gas jets in burner P can be observed.
Cold water is introduced at the top of the cylinder through tube ring C and
spout D, ring C being perforated with holes dischargeing water down the inside
surface of the cylinder. Spout D discharges water upon the centre of plate E and
covers the whole of the surface with a thin stream of water which passing through
perforations just within the outer edge (which is turned up about "all round)
into cones G and H suspended under plate E by means of metal suspenders F,
thence on to plate I which is perforated like plate E and discharges upon cone K
and into pan L from which it passes through about 40 tubes " in diameter upon
the lower cone O which is immediately over the gas burner P and the water is
finally discharged heated through spout U.
Plate R is a shield to prevent the reflected heat from the gas burner setting fire
to woodwork upon which the apparatus may be stood.
The action of the heating arrangement is as follows viz The heat from the gas
burner P passes between tubes M over pan L through the opening in bottom of

page_text: pan K and under plate I thence between streams of water dischargeing from plate I
rising over the outer edge and passing over small cone H through opening in bottom
of cone G under plate E to underside of cover B whence it is discharged through
nozzle or hole A.
The course of the heat is indicated by arrows taking an upward course on plan.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed, I declare that what
I claim is
1. In apparatus for heating water the use of hollowed or flat plates with edges
turned up and perforated connected with and attached to metal cones and pans
and small tubes, the arrangement being such as to ensure a thin stream of water
passing over a series of large heated surfaces and through a series of small tubes
finally discharging through the spout at any required degree of temperature.
2. The apparatus for heating water, constructed, arranged and operating
substantially as hereinbefore described with reference to and shown in the
drawings.