Improvements in Boilers or Steam Generators applicable for Heating Purposes.
Year: 1890

page_text: Date of Application, 22nd Feb., 1890
.Complete Specification Left, 22nd Nov., 1890-Accepted, 10th Jan., 1891
PROVISIONAL SPECIFICATION.
Improvements in Boilers or Steam Generators applicable for Heating
Purposes.
I, JOHN MORRIS NEWTON, of Clarence Street, Stalybridge in the County of
Lancaster, Mechanical Engineer, do hereby declare the nature of this invention to
be as follows:-
:-
This invention relates to apparatus for heating water or generating steam for heating
the interior of factories, warehouses, churches, or other buildings or structures, and is
designed with the object of providing a safe and efficient heater which can be con-
structed at a comparatively small cost.
The apparatus is constructed chiefly of tubes or pipes around or between which the
flames and products of combustion play. The tuhes or pipes are arranged in sets of
two, three, four, or more extending upwards in the form of a double zig-zag one set
crossing or interlacing with the adjacent one. The number of zig-zags in each set is
determined by the size or capacity of the apparatus each zig-zag set of tubes
terminating in a transverse pipe top and bottom with a superimposed coil, set of
horizontal or vertical tubes, dome cylinder or other enlarged chamber to act as a steam:
chamber or receiver.
In constructing the apparatus I provide two horizontal base tubes into which the
lower members of each set of zig-zag tubes are screwed or otherwise attached and two
horizontal top tubes into which the upper members of each set of zig-zag tubes are.
screwed or otherwise attached. Each end of these two top tubes are connected.
together by two other horizontal tubes at right angles to the first two forming a
continuous rectangular tube.
Each corner of this horizontal rectangular tube so formed, is connected to the
bottom horizontal tubes by a vertical tube thus presenting a cubical rectangular tubular
frame embracing and supporting the zig-zag cross tubes.
The steam chamber (formed of a coil, horizontal tubes, dome or cylinder,) is con-
nected to the top rectangular tubes by means of short connecting tubes or pipes. The
tube or pipe leading to the interior of the building is connected to the steam chamber.
The several members of the zig-zag sets of tubes are preferably connected together by
return bends of the required angle.
This tubular structure may be set in brickwork or in a metallic frame or casing with
a furnace of any ordinary construction placed below it and a flue leading from above
it so that the flames and heated gases impinge upon the tubes as they pass upwards
from the furnace to the flue.
I am well aware that tubular boilers have been made of coils of tubing in different
shapes and of lengths of horizontal tubes connected together at the ends and such in
themselves form no part of my invention.
Dated this 21st dow of 1800
:
COMPLETE SPECIFICATION.
Improvements in Boilers or Steam Generators applicable for Heating
Purposes.
I, JOHN MORRIS NEWTON, of Clarence Street, Stalybridge, in the County of
Lancaster, Mechanical 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 heating water or generating steam for heating

page_text: the interior of factories, warehouses, churches, florists' and fruit growers' hot-houses
or other buildings or structures, and is designed with the object of providing a safe
and efficient heater which can he constructed at a comparatively small cost.
The apparatus is constructed chiefly of tubes or pipes around or between which the
flames and products of combustion play. The tubes or pipes are arranged in sets of
two, four, or more extending upwards in the form of a double zig-zag one set crossing
or interlacing with the adjacent one. The number of zig-zags in each set is determined
by the size or capacity of the apparatus each zig-zag set of tubes terminating in a
transverse pipe top and bottom with a superimposed cylinder, dome, set of horizontal
or vertical tubes, coil, or other enlarged chamber to act as a steam chamber or
receiver.
The invention will be fully described with reference to the accompanying
drawings.
Fig. 1. Front elevation of generator constructed according to my invention.
Fig. 2. Side elevation of same.
Fig. 3. Plan below steam chamber G.
The apparatus is constructed with two horizontal tubes A, placed at the bottom and
two corresponding horizontal tubes B placed at the top to which are attached by
screwing or otherwise two, three, four, or more sets of tubes C connected together in
the form of a zig-zag. The tubes A and B are formed with a number of bosses or
sockets a b into which the ends of the lower and upper members of each zig-zag set
of tubes Care secured. The number of the bosses or sockets a b in the tubes A and B
correspond with the number of sets of tubes C and their distance apart is determined
by the size or diameter of the tubes C. I prefer to arrange that each set of tubes C
the lower and upper members shall terminate at the same side of the apparatus-that
is where the lower member of one set C is connected to the left hand horizontal tube A
the upper member is connected to the left hand horizontal tube B and where the lower
member of one set C is connected to the right hand horizontal tube A the upper
member of the same set is connected to the right hand horizontal tube B. Each set
of zig-zag tubes C is formed of straight tubes connected together at the ends by
return bends c formed at the required angle to receive them. Each of the top
members is also provided with a long screw c¹ and back nut c¹¹ by which they are
connected up into position and by which they can be adjusted.
At each end of the top horizontal tubes B is attached an angle, tee three way or
corner bend D to which there is connected a horizontal tube E and a vertical tube F.
The horizontal tubes E connected to the elbows D connect together the ends of the
horizontal tubes B and form therewith a continuous rectangular tube or rectangular
tubular frame near the top of the structure. And the vertical tubes F connect
together the ends of the horizontal tube B with the ends of the horizontal tube A
forming therewith a continuous rectangular tube or rectangular tubular frame at each
side of the structure the whole presenting a cubical tubular frame supporting and
embracing the cross tubes C which are attached to them.
A cylindrical steam chamber G is placed above the tubular structure and is con-
nected thereto by the pipes 9 preferably attached to the horizontal tubes E then to the
ends of the steam chamber or the bottom of it. To the steam chamber are attached
the pipes H and I one of which is the steam pipe leading to the interior of the building
and the other is a connection for valve and gauge fittings.
The feed water is preferably admitted through a pipe K attached to the end of one
of the horizontal tubes A and to the end of the other is attached a blow off pipe L
A pressure gauge a water gauge and a safety valve may be affixed by any suitable
connection to the pipes and also a pressure regulator.
The tubular structure so constructed may either be set in brickwork M as shown
or in a metallic frame or casing with a furnace N of any ordinary form placed below
it and a flue O leading from above it so that the flames and heated gases impinge upon
the tubes as they pass upwards from the furnace to the flue.
The generator so constituted is applicable for heating buildings and the like by
means of steam or may be used for generating steam for other purposes. For heating

page_text: by means of hot water instead of steam the steam chamber G and the steam mountings
may be dispensed with and the flow and return pipes be connected direct to the
horizontal tubes E.
I am well aware that tubular boilers have been made of coils of tubing in different
shapes and of lengths of horizontal tubes connected together at the ends and such in
themselves form no part of my invention.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
1. A tubular boiler or steam generator constructed of two or more sets of zig-zag
tubes with their lower and upper members connected to horizontal tubes substantially
as described.
2. A tubular boiler or steam generator formed of the horizontal tubes A and B
the inclined or zig-zag tubes C connected together by bends c the horizontal tubes E
vertical tubes F and steam chamber G substantially as described and shown.
3. A tubular boiler or steam generator with the several members or parts constructed
and arranged substantially as described.
BAR THIS 1st day of November 1890.
WM. P. THOMPSON & Co.,
Manchester, Liverpool, and London, Patent Agents.