Improved Circulating and Feed Heating Apparatus for Marine and other Boilers.
Year: 1886

page_text: Date of Application, 30th Nov., 1836.
Complete Left, 17th May, 1887.
Complete Accepted, 17th June, 1887.
PROVISIONAL SPECIFICATION.
Improved Circulating and Feed Heating Apparatus for Marine
and other Boilers.
JAMES BROWN ARCHER Marine Engineer 103 Stanhope Street Newcastle upon
Tyne, do hereby declare the nature of this invention to be as follows:-
On either side of furnace door are placed inlet and outlet pipes in connection with
a pipe placed along one side of interior of furnace (above the fire) crossing at bridge
and returning on the other side at a higher level to outlet pipe. The pipes being
placed at such a distance from side of furnace as to give a clear space for the action
of fire on furnace plate. The inlet pipe to be in connection with three way T-piece.
The centre branch leading to shut off valve on front of boiler having an internal pipe
with open end led to water space near bottom of boiler. The other branch of T-piece
being connected to the ordinary feed check valve. The outlet pipe to be in connection
with shut off valve on front of boiler having an internal pipe leading direct into the
boiler at level of furnace top and half the length of furnace, with open end turned
downwards.
Dated this 27th day of November 1886.
JAMES B. ARCHER,
Marine Engineer.

page_text: COMPLETE SPECIFICATION.
Improved Circulating and Feed Heating Apparatus for Marine
and other Boilers.
JAMES BROWN ARCHER 103 Stanhope Street Newcastle on Tyne Marine 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:—
On either side of furnace door are placed inlet and outlet pipes in connection with
a pipe placed along one side of interior of furnace (above fire) crossing at bridge &
returning on the other side at a higher level to outlet pipe, the pipes being placed at
such a distance from side of furnace as to give a clear space for action of flame upon
the furnace plate, the inlet pipe to be in connection with shut off valve upon 3 way
Tpiece, the centre branch leading to shut off valve which can be placed where
convenient on front or shell of boiler (at a lower level than outlet pipe) having an
internal pipe with open end led to water space near bottom of boiler. The other branch
of T piece being connected to ordinary feed check valve, the outlet pipe to be in
connection with shut-off valve upon front of boiler, having an internal pipe with open
end, leading direct into the boiler at or above the level of furnace top and of suitable
length to allow of free discharge.-The same results may be obtained by any other
arrangement of pipes and valves, such as, by passing the circulating pipe under the
firebars and returning at the bridge above the fire, or by entering furnace at line of
firebars, and returning on the same or other side at a higher level, or by pipes at
both or either sides of interior of furnace above the fire extending to bridge (or such
distance as may be required) before returning, or by taking the pipes through furnace
to water space at back of combustion chamber, and by arrangement of valves either
on front or shell of boiler most convenient for working as long as the circulation is
secured which is the principal of the said invention. By opening the valves in
connection with the inlet and outlet pipes communication is made between the water
space at bottom and a higher level of boiler, as soon as heat is applied to the
circulating pipes in furnace a reliable, rapid, and continuous circulation commences
from the bottom to a higher level of the boiler-By opening the feed check valve
the feed water is passed through the circulating pipes in furnace, entering the boiler
at a greatly increased temperature. The circulating pipes may be of iron, steel,
copper, or any other suitable material.

page_text: Having now particularly described and ascertained the nature of my said invention,
and in what manner the same is to be performed, I declare that what I claim is―
By my design for improved circulating and feed-heating apparatus for marine and
other boilers
1st. I provide a simple, automatic action with easy application and adaptability to
old or new boilers.
2nd. By the position of pipes in furnace a reliable, rapid and continuous circulation
is secured, and wear of boilers greatly reduced.
3rd. Increased temperature of Feed Water.
4th. Reduced Consumption of Fuel.