IMPROVEMENTS IN SADDLE BOILERS FOR HEATING CHURCHES CONSERVATORIES AND OTHER PLACES " CHURCHES CONSERVATORIES AND OTHER PLACES
Year: 1875

page_text: LETTERS PATENT to Andrew McLaren, of 174, Upper Thames Street,
in the City of London, Ironfounder and Hot Water Engineer, for
the Invention of "IMPROVEMENTS IN SADDLE BOILERS FOR HEATING
CHURCHES CONSERVATORIES AND OTHER PLACES "
CHURCHES CONSERVATORIES AND OTHER PLACES "
Sealed the 29th February 1876, and dated the 30th August 1875.
PROVISIONAL SPECIFICATION left by the said Andrew McLaren
at the Office of-the Commissioners of Patents, with his Petition,
on the 30th August 1875.
I, ANDREW MCLAREN, of 174, Upper Thames Street, in the City of
London,' Ironfounder and Hot Water Engineer, do hereby declare the
nature of the said Invention for "IMPROVEMENTS IN SADDLE BOILERS FOR
HEATING CHURCHES, CONSERVATORIES, AND OTHER PLACES," to be as follows :-
This Invention relates to improvements in saddle boilers for heating
churches, conservatories, and other places, and consists in constructing
the boilers with the furnace or fire-place at the upper part, and causing
the products of combustion to pass down in a zig-zag or to-and-fro
manner to the throat of an uptake arranged outside the shell, either as a
separate casing or as part of the main casing or boiler.
The water spaces are arranged between the inner shell forming the
.

page_text: fire chamber and the flues or smoke passages, and partake of the heat of
the gases as they-descend...
The water inlet is at the lower part of the boiler or apparatus for the
supply or the return, as the 'case may be, the outlet being at the upper
part. The boiler is provided with, ash-pit and flue doors at convenient
parts.
The water inlet is at the lower part of the boiler or apparatus for the
supply or the return, as the case may be, the outlet being at the upper
part. The boiler is provided with ash-pit and flue doors at convenient 5
parts.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Andrew M°Laren in the Great Seal Patent Office
on the 29th February 1876.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, ANDREW
McLAREN, of 174, Upper Thames Street, in the City of London, Iron-
founder and Hot Water Engineer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Thirtieth day of August, in the year
of our Lord One thousand, eight hundred and seventy-five, in the
thirty-ninth year of Her reign, did, for Herself, Her heirs and
successors, give and grant unto me, the said Andrew McLaren,
Her special license that I, the said Andrew McLaren, my executors,
administrators, and assigns, or such others as I, the said Andrew
M*Laren, 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 SADDLE BOILERS FOR HEATING CHURCHES, CONSERVATORIES,
AND OTHER PLACES," upon the condition (amongst others) that I,
the said Andrew McLaren, 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 YẸ, that I, the said Andrew McLaren, do hereby

page_text: 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 saddle boilers for heating
churches, conservatories, and other places, and consists in constructing
the boilers A with the furnace or fire-place B, Figures 1 and 2, at the
upper part, and causing the products of combustion to pass down the
flue C and along the flue D, from whence they descend into the flue E,
the products thus passing downward in a zig-zag or to-and-fro manner
to the throat of an uptake F arranged outside the shell, either as a
separate casing or as part of the main casing or boiler.
The water spaces G, G, are arranged between the inner shell forming
the fire chamber and the flues or smoke passages, and partake of the
heat of the gases as they descend.
The water inlet H is at the lower part of the boiler or apparatus for
the supply or the return, as the case may be, the outlet I being at the
upper part. The boiler is provided with ash-pit J and flue doors K, K,
at convenient parts.
The arrangement of the flues and the fire-place or furnace as above
described effects a more perfect heating of the water and a better
circulation of the same with less liability of the sediment being distubed
than in boilers in which the furnaces are under the bottom flue.
And having now described the nature of my said Invention, and in
what manner the same is to be performed, I declare that I claim, the
construction of boilers for heating churches, conservatories, and other
places in the manner hercin-before set forth and shown, by which the
products of combustion descend from a fire along flues, and in a zig-
zag or to-and-fro manner in a downward direction for the purposes
described.
In witness whereof, I, the said Andrew McLaren, have hereunto
set my hand and seal, this Twenty-eighth day of February One
thousand eight hundred and seventy-six.
ANDREW MCLAREN. (L.S.)