Improvements connected with Fuel Economisers or Water Heaters for Marine and other Boilers.
Year: 1897

page_text: PROVISIONAL SPECIFICATION.
Improvements connected with Fuel Economisers or Water Heaters
for Marine and other Boilers.
We, Sir EDWARD GREEN, Baronet, and FRANCIS WILLIAM GREEN, both of the Firm
E. Green and Son Limited, Wakefield, Yorkshire, Fuel Economiser Manufacturers,
do hereby declare the nature of this invention to be as follows :--
This invention relates to so fitting vertically arranged fuel economisers or water
heaters in the flue way in a separate chamber, or in the smoke stack of a steam furnace
that the free passage of heat, gases, smoke, or vapour is not interfered with, or their
travel from the furnaces to the funnel checked.
For the purpose of our invention, we make the vertical pipes with reduced diameter
of necks to fit within the sockets of the lower water box, this being of the same
width as the wider part of each pipe, or otherwise, so that the lower set of scrapers
may travel downwardly as far as the sockets or even lower if so desired to clear them
of soot.
The upper ends of the tubes may be similarly arranged and also the top boxes if
the smoke has to pass clear up through between them but if the bottom boxes alone
are so prepared, the travel of the smoke etc. can be diverted to one side near the
upper part of the structure..
As a modification in the shape of the tubes, they may have straight exteriors from
end to end, and by suitable internal flanges or surfaces on their inner ends, discs, or
plugs can be fitted in to close the ends except to short connections of the boxes and
said connections may be right and left hand screw thread collars or ferrules.
The straight or other tubes may have end caps and these can be connected up by
screw collars or ferrules, and if desired such tubes may have liner tubes.
In connection with such tubes and boxes or other connections, we purpose using:
three scraper blades to each scraper appliance so that the end one may travel beyond
the neck, the other two being in contact with the tube to retain their position while
moving up and down: The scrapers may however be in pairs and be so made and hung
that they act on separate tubes.

page_text: Improvements connected with Fuel Economisers or Water Heaters
for Marine and other Boilers.
We, Sir EDWARD GREEN, Baronet, and FRANCIS WILLIAM GREEN, both of the
Firm E. Green and Son Limited, Wakefield, Yorkshire, Fuel Economiser Manufacturers,
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 so fitting vertically arranged fuel economisers or water
heaters in the flueway in a separate chamber, or in the smoke stack of a steam
furnace that the free passage of heat, gases, smoke, or vapour is not interfered with,
or their travel from the furnaces to the funnel checked.
For the purpose of our invention and as shown at Figure 1, we make the vertical
pipes A, with reduced diameter of necks B, to fit within the sockets C, of the lower
water box D, this being of the same width as the wider part of each pipe, or otherwise,
as that the lower set of scrapers may travel downwardly as far as the sockets to clear
the pipes for their full length of soot.
The upper ends of the tubes A may be similarly arranged as represented and also
the top boxes E particularly if the smoke has to pass clear up through between them,
but if the bottom boxes alone are so prepared, the travel of the smoke etc. can be
diverted by a screen to one side near the upper part of the structure.
As a modification in the shape of the tubes A, they may have straight exteriors
from end to end, as at Figure 2, and by suitable internal or external flanges or
surfaces F on their ends, hollow pieces G can be fitted as short connections, and said
connections may be right and left hand screw threaded for collars and ferrules G, as
at Figures 3 and 4.
The straight or other tubes A may have end caps H, and said ends when the caps
are removed can be connected up by screw collars or ferrules, and if desired such
tubes may have liner tubes I, as at Figures 5 and 6.
Having now particularly described and ascertained the nature of this
invention and in what manner the same is to be performed, we declare that what
we claim is :-
1. The improvements connected with fuel economisers or water heaters herein before
described and as shown on the annexed drawings.
2. Making the tubes of fuel economisers with reduced ends to fit in sockets as at
Figure 1 of the annexed drawings for the purpose described.
3. Making the tubes of fuel economisers to fit on sockets and over ferrules, as
represented at Figures 2, 5, and 6 of the annexed drawings for the purpose set forth.
4. Making the tubes of fuel economisers with internal or external flanges, or
screw threaded for hollow plugs, collars, or ferrules as short connections as described
and as represented in the annexed drawings, Figures 3 and 4.
The 24th day of December 1897
H. GARDNER,
Patent Agent, 166, Fleet Street, London.
Agent for the said Sir Edward Green, Bart., and Francis William Green.