IMPROVEMENTS IN APPARATUS FOR HEATING BY MEANS OF STEAM
Year: 1869

page_text: LETTERS PATENT to Shepherd Edward Crispe and James West, both
of 151, High Street, Poplar, in the County of Middlesex, for the
Invention of "IMPROVEMENTS IN APPARATUS FOR HEATING BY MEANS
OF STEAM."
Scaled the 14th September 1869, and dated the 13th July 1869.
PROVISIONAL SPECIFICATION left by the said Shepherd Edward
Crispo and James West at the Office of the Commissioners of
Patents, with their Petition, on the 13th July 1869.
We, SHEPHERD EDWARD CRISPE and JAMES WEST, both of 151, High
Street, Poplar, in the County of Middlesex, do hereby declare the nature
of the said Invention for "IMPROVEMENTS IN APPARATUS FOR HEATING BY
MEANS OF STEAM," to be as follows:-
This Invention has for its object improvements in apparatus for
heating by means of steam. Where steam circulating in steam pipes
or admitted into a steam jacket or casing is employed for heating, it is
usual either to let the water resulting from the condensation be blown
out from the pipes, jacket, or casing, together with steam remaining

page_text: unconducted, or in many cases an apparatus is provided to allow the
water to run out as it accumulates by a suitable opening; but this
opening is closed by the apparatus as soon as steam commences to pass.
Both these arrangements are objectionable, the first, because it causes
a great waste of heat, both from the loss of steam and of the hot water
condensed from it; the latter arrangement, because the apparatus is
complicated and costly, and yet allows the hot water resulting from the
condensation to be wasted, whilst the boiler has to be provided with
pumps or feeding apparatus to supply the waste.
According to our Invention we arrange the steam pipes or jacket or
casing of the steam-heating apparatus above the level of the boiler, and
we so arrange them that all the condensed water may drain downwards
to the lowest part of the apparatus, and from thence a small pipe
conducts it back into the boiler, into which it falls by gravitation. This
return pipe is brought down nearly to the bottom of the boiler, so that
steam may not enter it to impede the descent of the water. With this
arrangement the boiler need not be provided with any feeding apparatus,
as the loss of water during working is very small.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Shepherd Edward Crispe and James West in the
Great Seal Patent Office on the 12th January 1870.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, SHEPHERD
EDWARD CRISPE and JAMES WEST, both of 151, High Street, Poplar,
in the County of Middlesex, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Thirteenth day of July, in the year
of our Lord One thousand eight hundred and sixty-nine, in the thirty-
third year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto us, the said Shepherd Edward Crispe and James
West, Her special licence that we, the said Shepherd Edward Crispe
and James West, our executors, administrators, and assigns, or such
others as we, the said Shepherd Edward Crispe and James West,
our executors, administrators, and assigns, should at any time agree
with, and no others, from time to time and at all times thereafter

page_text: 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 APPARATUS FOR HEATING BY MEANS OF STEAM," upon the
condition (amongst others) that we, the said Shepherd Edward Crispe
and James West, our executors or administrators, by an instrument in
writing under our or their hands and seals, or under the hand and scal
of one of us or them, 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 we, the said Shepherd Edward Crispe and
James West, do hereby declare the nature of the 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, that is
to say:-
This Invention has for its object improvements in apparatus for
heating by means of steam. Where steam circulating in steam pipes
or admitted into a steam jacket or casing is employed for heating, it is
usual either to let the water resulting from the condensation be blown
out from the pipes, jacket, or casing, together with steam remaining
uncondensed, or in many cases an apparatus is provided to allow the
water to run out as it accumulates by a suitable opening; but this
opening is closed, by the apparatus as soon as steam commences to pass.
Both these arrangements are objectionable, the first, because it causes
a great waste of heat, both from the loss of steam and of the hot water
condensed from it; the latter arrangement, because the apparatus is
complicated and costly, and yet allows the hot water resulting from the
condensation to be wasted, whilst the boiler has to be provided with
pumps or feeding apparatus to supply the waste.
According to our Invention we arrange the steam pipes or jacket or
casing of the steam heating apparatus above the level of the boiler, and
we so arrange them that all the condensed water may drain downwards
to the lowest part of the apparatus, and from thence a small pipe
conducts it back into the boiler, into which it falls by gravitation. This
return pipe is brought down nearly to the bottom of the boiler, so that
steam may not enter it to impede the descent of the water. With this

page_text: arrangement the boiler need not be provided with any feeding apparatus,
as the loss of water during working is very small.
And in order that our said Invention may be most fully understood
and readily carried into effect, we will proceed to describe the Drawing
hereunto annexed.
DESCRIPTION OF THE DRAWING.
The Drawing shews, partly in section, a steam boiler a; b is a steam
pipe ascending from it to a steam heating coil c, so arranged that the
water from the steam condensed within it may gravitate to the lowest
part of the coil, and then return by the pipe d to the boiler. This pipe d
descends into the boiler to such a depth that its mouth may at all times
be covered by the water in the boiler. d is a valve connected with the
pipe d, and arranged in such manner as to prevent water from the boiler
ascending the pipe d and entering the coil c, as it otherwise might do in
case of a leak occurring at any of the joints of the coil; ' is a steam
cock in the pipe b to stop the passage of steam to the coils when desired.
The Drawing also represents an evaporating pan connected with the same
boiler. e is the steam jacketted pan; f is a steam pipe supplying steam
to the pan, and with a steam cock upon it at f¹; g is a pipe descending
from the lowest part of the jacket and dipping into the boiler below
the water level in the same way as the pipe d is arranged; it also has
a valve upon it at g' to stop the escape of water from the boiler should
the jacket become leaky.
In witness whereof, we, the said Shepherd Edward Crispe and James
West, have hereunto set our hands and seals, this Twelfth day?
of January, in the year of our Lord One thousand eight hundred
and seventy.
SHEPHERD EDWARD CRISPE. (L.S.)
JAMES WEST.
(L.S.)