AN IMPROVED.METHOD AND APPARATUS FOR DRYING STEAM BOILERS."
Year: 1875

page_text: LETTERS PATENT to John Morcombe Bromley Baker, of Southsea,
in the County of Hants, for the Invention of "AN IMPROVED.
METHOD AND APPARATUS FOR DRYING STEAM BOILERS."
PROVISIONAL SPECIFICATION left by the said John Morcombe
Bromley Baker at the Office of the Commissioners of Patents,
with his Petition, on the 9th January 1875.
I, JOHN MORCOMBE BROMLEY BAKER, of Southsea, in the County of
Hants, do hereby declare the nature of the said Invention for "An In-´
PROVED METHOD AND APPARATUS FOR DRYING STEAM BOILERS," to be as
follows:-
This Invention consists in an improved method and apparatus for
drying steam boilers, particularly applicable to marine boilers when
out of use.
The following is an example of the means by which I propose to
attain the above object :-Inside a portable stove of any suitable shapo

page_text: I place a coiled pipe, one end of which is connected with bellows or a
fan, to which motion may be imparted by hand or otherwise. The other
end of the coiled pipe communicates with the boiler which is to bo
dried by a tube or tubes.
-
The method of drying by means of the above apparatus is as follows :-
A firo is made in the aforesaid portable stove, so as to heat the coiled
pipe to redness; the bellows or fan aforesaid are then put in motion, and
the air passing through the heated coiled pipe arrives in the boiler at a
high temperature. The operation is continued until the surface of the
boiler is dry; a man-hole door is then eased by slackening the screws for 1
the purpose of creating a draught through the said boiler. The bellows
or fan are then disconnected, and a funnel may be put in its place.
The operation will now be self-acting, as the cold air will have a ten-
dency to rise into the boiler containing hot air, but having to pass
through the heated coiled pipe will also become heated, and enters tho 1
boiler at a high temperature.
When the boiler is thoroughly dry I propose to inject therein hot air
or steam saturated with tallow or other fatty matter or matters, so as to
coat tho interior surface of the said boiler with such fatty matter.
.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said John Morcombe Bromley Baker in the Great Scal
Patent Office on the 9th July 1875.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN
MORCOMBE BROMLEY BAKER, of Southsea, in the County of Hants, send
greeting.
2
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Ninth day of January, in the year
of our Lord One thousand eight hundred and seventy-five, in the
thirty-eighth year of Her reign, did, for Herself, Her heirs and suc-
cessors, give and grant unto me, the said John Morcombe Bromley Baker, 3
Her special license that I, the said John Morcombe Bromley Baker, my
executors, administrators, and assigns, or such others as I, the said John
Morcombe Bromley Baker, my executors, administrators, and assigns,

page_text: through the heated coiled pipe will also become heated, and enters the
boiler at a high temperature.
When the boiler is thoroughly dry I. propose to inject thoroin hot air
or steam saturated with tallow or other fatty matter or matters so as to
coat the interior surface of the said boiler with such fatty mattor.
And in order to explain my said Invention moro fully I now proceed
to describe the means by which it may be carried into practical effect,
reference being had to the illustrative Sheet of Drawing accompanying
these Presents, and to the numeral figures and letters of reference marked
thereon respectively, as follows
* A. is a portable stove of any suitable shape or size, into which is placed
a coiled pipe B suitably held in position by supports C. One end D of the
coiled pipo B is connected with double-action bellows or fan E by means
of a pipe l' composed of india-rubber or other suitable material, and is
furnished at G with a back-pressure valve for preventing the hot blast
returning into the bellows E; the other end H of the coiled pipo com-
municates by a tube with the boiler which is to be dried. A firo is made
in the stove A., and when the coiled pipe B is licated to redness the
bellows or fan E are put in motion, and the air passing through the
heated coiled pipe arrives in the boiler at a high temperature. The
operation is continued until the surface of the boiler is dry; a man-holc
is then cased by slackening the scrows for the purpose of creating a
draught through the said boiler. The pipe F, valve G, and bellows or
fan E are then disconnected, and replaced by a pipe K furnished at one
ond with a funnel L, or the pipe F may be used by simply inserting the
funnel L in one end thereof. The operation will now be self-acting,
as the cold air will have a tendency to ascend into the boiler containing
hot air, but having to pass through the heated coiled pipo B will also
become licated and enter the boiler at a high temperature.
The apparatus above described may also be used to dry the double
bottoms of iron ships.
Having now described and set forth the nature and object of my said
Invention for "An Improved Method and Apparatus for Drying Steam
Boilers," I would remark in conclusion that I hereby declare my

page_text: Invention to consist in and I claim, the improved method and apparatus
for drying steam boilers, substantially as described and represented.
"
In witness whereof, I, the said John Morcombe Bromley Baker,
have hereunto set my hand and seal, this Eighth day of July, in
the year of our Lord One thousand cight hundred and seventy-
five.