IMPROVEMENTS IN STEAM BOILERS
Year: 1875

page_text: LETTERS PATENT to Carl Pieper, of Dresden, Saxony, for the In-
vention of "IMPROVEMENTS IN STEAM BOILERS."-A communication
from Emil Kaselowsky, of Berlin, Prussia.
Sealed the 10th August, 1875, and dated the 13th February 1875.
PROVISIONAL SPECIFICATION left by the said Carl Pieper at the
Office of the Commissioners of Patents, with his Petition, on the
13th February 1875.
I, the undersigned CARL PIEPER, of Dresden, Saxony, do hereby
declare the nature of the said Invention for "IMPROVEMENTS IN STEAM
BOILERS," a communication, to be as follows:-
1
This Invention relates to the construction of steam boilers with an
internal fire-box, and the object of the same is to avoid all stay bolts, so
as to facilitate the cleaning of the boiler from scale and sediment, to
make the same safer against accident, and to afford several other
advantages.

page_text: The interior fire-box is made circular, as also the shell of the fire-box,
but both are arranged excentrically to each other. They are cut out at
the bottom, and the edges of the plate around the openings of both parts
are united by riveting, having a ring or distance piece placed between
them. The internal fire-box however is not fixed to the shell of the
same by any stay bolts whatever. The opening at the bottom of
the fire-box serves for the free admission of the air from below to the
grate.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Carl Pieper in the Great Seal Patent Office on
the 10th August 1875.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, CARL
PIEPER, of Dresden, Saxony, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Thirteenth day of February, 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 successors, give
and grant unto me, the said Carl Pieper, Her special licence that
I, the said Carl Pieper, my executors, administrators, and assigns,
or such others as I, the said Carl Pieper, 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 Ireland, the Channel Islands,
and Isle of Man, an Invention for "IMPROVEMENTS IN STEAM BOILERS," a
communication to me from Emil Kaselowsky, of Berlin, Prussia, upon
the condition (amongst others) that I, the said Carl Pieper, 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 1, the said Carl Pieper, do hereby declare the_

page_text: the latter by stay bolts of any description, as and for the purpose set
forth.
In witness whereof I, the said Carl Pieper, of Dresden, have
hereunto set my hand and seal this Nineteenth day of July, in
the year of our Lord One thousand eight hundred and seventy-
five.