IMPROVEMENTS IN APPARATUS FOR HEATING CHAMBERS, APARTMENTS, OR BUILDINGS, AND FOR HEATING WATER, WHICH APPARATUS IS APPLICABLE FOR TURKISH BATHS AND OTHER PURPOSES
Year: 1868

page_text: PROVISIONAL SPECIFICATION left by John Enraght Scriven at the
Office of the Commissioners of Patents, with his Petition, on the
15th December 1868.
I, JOHN ENRAGHT SCRIVEN, of Powerstown House, Mulhuddart, in
the County of Dublin, do hereby declare the nature of the said In-
vention for "IMPROVEMENTS IN APPARATUS FOR HEATING
CHAMBERS, APARTMENTS, OR BUILDINGS, AND FOR HEATING WATER, WHICH
APPARATUS IS APPLICABLE FOR TURKISH BATHS AND OTHER PURPOSES," to be as
follows:-
This Invention has for its object improvements in apparatus for heating
the air in chambers, apartments, or buildings, and for heating water,
which apparatus is applicable for Turkish baths and other purposes, and
relates to that class of apparatus in which the furnace or fire-box is
composed of a series of iron rings or short vertical casings placed one
above another so as to permit of the expansion and contraction of the
metal which results from the varying temperature thereof without fear
of its fracturing. I form the base plate with a ledge around it so that
its central portion rises somewhat within the lower ring or vertical casing,

page_text: the bottom of which rests upon the aforesaid ledge of the base plate.
This lower ring or casing, which is provided with an adjustable door or
doors, constitutes the sides of the ash-pit, and is formed at its upper edge
with a broad rim or shelf having a small vertical ledge running around
its outer edge. This rim or shelf receives and supports the fire-bars, as
also a second ring or vertical casing, whose lower edge rests upon the
broad rim or shelf of the ash-pit casing in the space between the fire-bars
and the small vertical outer ledge. This ring or vertical casing is formed
with a small hopper-shaped opening through which a stoking iron may
be passed for clearing away the clinker and other stoking purposes; it is
furnished with a door, the position of which is adjustable by a rack or
other suitable means so as to regulate the quantity of air admitted in an
uniform manner. The upper edge of the ring or vertical casing last
mentioned is formed with a groove or channel for receiving the lower
edge of another ring or casing, and-so-on,-the-upper edge of each ring or
casing being formed with a like groove or recess to receive the lower
edge of the next higher ring or casing. In this way perfectly air-tight
joints are formed without the employment of luting or other special
packing as the interstice left between the lower edge of each ring or
casing and the-groove-in which it fits becomes rapidly filled with ashes,
and thus the joint is made good. The upper ring or casing is formed
with a hopper-shaped opening through which the fire-place is fed with
fuel, such opening being closed by a door, the position of which like that
of the stoking door may be adjusted by a rack or other suitable means,
so as to regulate the quantity of air admitted through the opening into
the furnace. I form the crown plate of the furnace or fire-box with a
ledge or projection which fits into the groove or channel formed around
the upper edge of the top ring or vertical casing in the same manner
that the lower edge of each ring or casing fits into the groove or channel
of the next ring. The crown plate receives and supports a series of
vertical flue tubes which conduct the products of combustion into a smoke
box supported on the upper ends of the tubes. The top of the smoke
box is covered by a plate having a ledge or projection which fits into
a groove or channel formed around the upper edge of the smoke box, in
the manner already explained with reference to the crown plate and
upper ring of the furnace. Within the smoke box I arrange a small
heating vessel or boiler communicating through suitable circulating
pipes or tubes with a cistern or reservoir of water to be heated, so that
the cooler water may flow into the small heating vessel or boiler through

page_text: the one pipe or tube and return to the cistern or reservoir through the
other. I prefer that these pipes should pass along the flue tube which
leads from the smoke-box to the chimney. I provide the small heating
vessel or boiler with pendant circulating boiler tubes, preferring those of
the description well known as the "Field " patent boiler tubes; and I
arrange such tubes so that they may hang down into the vertical flues
leading from the furnace to the smoke box. The number of pendant
tubes to be employed-will depend upon circumstances. The vertical fluc
tubes are provided with dampers for regulating the course of the products
of combustion, so that when it is desirable to heat the water rapidly the
products of combustion may be caused to come more especially in contact
with the pendant tubes and boiler, and vice versa. When it is desired to
heat the water slowly, the products of combustion may be diverted
accordingly.