An Improved Steam Generator.
Year: 1897

page_text: Date of Application, 20th Jan., 1897
Complete Specification Left, 8th Sept., 1897-Accepted, 16th Oct., 1897
PROVIDIONAL DILLION
An Improved Steam Generator.
I, SAMUEL ALBERT JOHNSON of 130 High Street Poplar, E. Engineer, do hereby
declare the nature of this invention to be as follows:-
This Invention relates to an Improved auxilliary arrangement or form of Steam
Generator, wherein I propose to take and adapt a semicircular or other like form of
Chamber or Box immediately above the Furnace door or in other suitable position so
as to permit of a series of tubes being properly connected and received therein and
led or continued therefrom over and above the front of the fire towards the back of
the Boiler or Combustion Chamber and outside of the Brickwork surrounding same
and then connected in suitable manner to a circulating chest or chamber fitted in
position outside of same. The said series of tubes being supported in their length
by brick bridges or the like built within the length of the Furnace flue.
The back circulating chest or chamber so provided wherein the series of tubes
would be suitably fitted, a pipe connection would be formed in communication
therewith and to the lower portion of the Main Boiler. The semicircular or other
like form of chest, chamber or box at the front end of the Boiler wherein the series
of tubes would be likewise suitably connected thereto and have a pipe or tube
connection therefrom which would be led and connected to the upper or steam space
of the Main Boiler.
The tube ends or portions thereof being suitably and securely fitted within both
the front and back chambers or chests in manner just referred to would have openings
provided in that portion of the tubes fitted therein to permit of free circulation
throughout. Each of the said tubes would be provided and secured in position by
means of suitable washers and screwed nuts fitted thereon both at the back and front
sides of each Circulating Box or Chamber together with outer screwed caps whereby
they are securely connected thereto.
The particular object of this my Invention being to materially aid and add to the
steaming power of Boilers without in any way increasing or requiring further
consumption of Fuel.
I, SAMUEL ALBERT JOHNSON of 130 High Street Poplar, E. Marine Engineer, do
hereby declare the nature of this invention and in what manner the same is to be
5 performed, to be particularly described and ascertained in and by the following
statement and accompanying Sheet of Drawings :-
This Invention relates to an auxilliary arrangment or form of Steam Generator,

page_text: wherein I propose to take and adapt a semicircular or other like forin of Chamber or
Box immediately above the Furnace door, or in other like suitable position, so as to
permit of a series of tubes being properly connected and received therein and led or
continued therefrom, in an horizontal direction or manner, over and above the Fire
towards the back of the Boiler or Combustion Chamber and entirely outside and
clear of the Brickwork surrounding same-and the rear ends of the said tubes are
then connected in suitable manner to a Chest or Circulating Chamber fitted in
position outside of same. The said series of horizontally disposed tubes being
supported in their length by either brick bridges built within the length of the Flue
or may be otherwise suitably supported.
A pipe or tube connection would be formed in direct communication with the said
back circulating chest or chamber and connected to the lower portion of the Main
Boiler. The further semicircular or other like suitable form of Chest, Chainber or
Box at the front end of the Boiler, (wherein the ends of the said tubes would be
suitably connected or fitted thereto in similar manner as to that of the rear semi-
circular chest or chamber) would also have a pipe or tube connection direct therefrom,
and be led and suitably connected to the upper or Steam space portion of the Main
Boiler.
Suitable washers and screwed nuts also outer screwed caps would be fitted to the
projecting ends or portions of each of the tubes as fitted to both the immediate
back and front sides of each of the said circulating chambers or chests. The tubes
would be arranged at a suitable angle or horizontal dip, as from the front to the back
of the Boiler. Openings would necessarily be provided in that portion of the tube
ends contained within each semicircular chest or chamber, assisting and affording
free circulation throughout all parts.
In the accompanying Sheet of Drawings, Figure 1, exhibits a longitudinal section
of a Lancashire type of Boiler. Figure 2, is a front Elevation, and Figure 3, a back
or end Elevation of same,-shewing the method of applying my Invention thereto,-
so as to give and provide an Auxilliary arrangement or form of Steam Generator to
further aid and add to the Steaming power of Boilers without in anyway increasing
or requiring further consumption of Fuel.
In the several Figures, 1, 2, and 3, the same letters of reference indicate like or
corresponding parts."
Immediately above and around the front portion of the Furnace door of the Boiler,―
a semicircular or like form of Chest or Chamber A, is provided wherein the fore ends
of a series of tubes B, B, are placed and securely fitted therein, and the hinder
portious thereof are led or continued toward the back of the Boiler and through the
flue passage way and outside portion of the surrounding Brickwork. The rear ends
of the said tubes B, B, are then placed and securely fitted into a further like semi-
circular chest or chamber C,-suitably formed and provided to receive same at
the back of the Brickwork of the Boiler. A pipe or water tube connection or
connections E, E, would be provided and fitted beneath the said chest or chamber C,
and connected to the lower part of the Boiler as shewn at F.
The semicircular or like form of chest or chamber A, provided at the front or
external part of the Boiler (wherein the fore ends of the tubes B, B, are fitted)
would also have provided and fitted thereto at its upper portion a pipe or tube
connection G, led or connected to the upper or steam space portion of the Boiler as
at H. J, is a bridge intended to support the tubes B, B, in their length, or in other
suitable manner as may be found desirable.
The series of tubes B, B, would as shewn at Figure 1, be so arranged and fitted in
position in a horizontal direction at a suitable angle or dip from the fore chamber or
chest A to that of the rear chamber or circulating chest C; necessary openings being
provided in each of the tube ends B, B as contained within each of the chambers or
chests A and C, by which means free and rapid circulation is thereby ensured from
one chamber or chest to the other.
Having now particularly described and ascertained the nature of
my said

page_text: Invention and in what manner the same is to be performed I declare that what I
claim is:
The particular arrangement and combination of parts enabling greater economy
of Fuel and increased pressure of Steam to be secured, by the arrangement and
disposition of Water tubes from the front chest or chamber to the outer or rear chest
or chamber, advantage being thereby taken of all heated gases and flame causing
them to act direct on the external portions of the horizontally disposed series of
Water tubes throughout the entire length of the Boiler and flue portion thereof.
Due provision being afforded both at the fore or outer portion of the Boiler as well as
at the back and clear of the brick setting or flue thereof. And when required either
the tubes or chest portions as well as other connections or parts may be readily taken
apart for either overhaul or renewal. All fittings and parts being entirely external
are readily available as in manner herein before described and illustrated in the
accompanying Sheet of Drawings.