IMPROVEMENTS IN VERTICAL BOILERS AND IN MEANS PRODUCING CONSTANT CIRCULATION OF WATERRE
Year: 1873

page_text: LETTERS PATENT to John Richardson, Engineer to the Firm of
Robey and Company, Limited, Perseverance Iron Works, Lincoln,
for the Invention of "IMPROVEMENTS IN VERTICAL BOILERS AND IN MEANS
Sealed the 12th June 1874, and dated the 17th December 1873.
PROVISIONAL SPECIFICATION left by the said John Richardson at the
Office of the Commissioners of Patents, with his Petition, on the
17th December 1873.
. I, JOHN RICHARDSON, Engineer to the Firm of Robey and Company,
Limited, Perseverance Iron Works, Lincoln, do hereby declare the
nature of the said Invention for "IMPROVEMENTS IN VERTICAL BOILERS
AND IN MEANS OF PRODUCING CONSTANT CIRCULATION OF WATER THEREIN," to
be as follows :—
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vermanta in vortical hoileng and in

page_text: of from about 6" above the grate. Into the shoulders formed by this
method I insert tubes which incline from the shoulder to the crown of
fire-box, these tubes being in connection with the water space of boiler
at each end. From the crown of the fire-box a number of tubes also
run to the chimney forming the uptake for smoke. Over the crown of
fire-box a plate is fixed to deflect the currents of water ascending
through the water tubes. The effect of this arrangement of water tubes
is a rapid circulation of water up through the tubes at the upper end of
which they discharge the steam generated within them, while the water
returns down the side of fire-box having suddenly to change its direction
at the lower end of tubes; it then parts with any sediment or dirt
which may be in suspension, which sediment may accumulate in the
large space provided at the lower end of boiler, from which it can
easily be cleared out through a mud hole provided for the purpose.
The advantages of this boiler over other boilers are, large heating
surface, simplicity of construction, rapid and constant circulation of the
water, and quick generation of steam, also greater cconomy in fuel.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said John Richardson in the Great Seal Patent Office
on the 17th June 1874.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN
RICHARDSON, Engineer to the Firm of Robey and Company, Limited,
Perseverance Iron Works, Lincoln, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Seventeenth day of December, in the
year of our Lord One thousand eight hundred and seventy-three, in the
thirty-seventh year of Her reign, did, for Herself, Her heirs and suc-
cessors, give and grant unto me, the said John Richardson, Her special
licence that I, the said John Richardson, my executors, administrators,
and assigns, or such others as I, the said John Richardson, my
executors, administrators, and assigns, should at any time agree with,
and no others, from time to time and at all times thereafter during
the term therein expressed, should and lawfully might make, use,
exercise, and vend, within the United Kingdom of Great Britain and
'

page_text: Ireland, the Channel Islands, and Isle of Man, an Invention for " IM-
PROVEMENTS IN VERTICAL BOILERS AND IN MEANS OF PRODUCING CONSTANT
CIRCULATION OF WATER THEREIN," upon the condition (amongst others) that
I, the said John Richardson, my executors or administrators, by an
instrument in writing, under my, or their, or one of their hands and
seals, should particularly describe and ascertain the nature of the said
Invention, and in what manner the same was to be performed, and
cause the same to be filed in the Great Seal Patent Office within
six calendar months next and immediately after the date of the said
Letters Patent.
NOW KNOW YE, that I, the said John Richardson, do hereby declare
the nature of my said Invention, and in what manner the same is to be
performed, to be particularly described and ascertained in and by the
following statement thereof, reference being had to the Drawings
hereunto annexed, that is to say :-
-
This Invention relates to improvements in vertical boilers and in
means of producing constant circulation of water therein, and consists
in expanding the upper part of fire-box which surrounds the fire-grate
from about 6" above the grate. Into the shoulders formed by this
method I insert tubes which incline from the shoulder to the crown of
the fire-box, these tubes being in connection with the water space
of the boiler at each end. From the crown of the fire-box a number of
tubes also run to the chimney forming the uptake for smoke. The
effect of this arrangement of water tubes is a rapid circulation of water
up through the tubes, at the upper end of which they discharge the
steam generated within them while the water returns down the side of
the fire-box, having suddenly to change its direction at the lower end of
the tubes, it then parts with any sediment or dirt which may be in
suspension, which sediment may accumulate in the large space provided
at the lower end of the boiler from which it can easily be cleared out
through a mud hole provided for the purpose.
The advantages of this, boiler over other boilers are, large heating
surface, simplicity of construction, rapid and constant circulation of
the water, and quick generation of steam, also greater economy in
fuel.
The Invention will be more particularly understood by reference to