AN IMPROVED METHOD OF AND APPARATUS FOR HEATING AND VENTILATING ROOMS AND BUILDINGS
Year: 1873

page_text: PROVISIONAL SPECIFICATION left by William Bewick Quelch at the
Office of the Commissioners of Patents, with his Petition, on the
14th January 1873.
I, WILLIAM BEWICK QUELCH, of Wigston Magna, in the County
of Leicester, Civil Engineer, do hereby declare the nature of the
said Invention for "AN IMPROVED METHOD OF AND APPARATUS FOR HEATING
AND VENTILATING ROOMS AND BUILDINGS," to be as follows:-
This Invention consists in the construction and arrangement of certain
apparatus, and in the method of applying the same for heating and
ventilating rooms and buildings, and can be applied in connection with.
and without necessarily altering the chimneys already existing and
used.
Beneath, above, and at the sides and back of the fire-grate or stove is
or are constructed and arranged an air chamber or air chambers, the
chamber or that part thereof (when one chamber only is employed) being
so arranged as to allow of the smoke passing up into the chimney by

page_text: means of pipes or tubes which are placed in a vertical position through
the chamber, or the pipes or tubes themselves may form the chamber or
chambers, and in that case they are placed horizontally or nearly so.
Pipes or tubes are in some cases placed through the chamber or that
part of the chamber which is behind the fire from a point above the
fire to the top. The chamber or chambers opens or open into and is or
are connected with another chamber or reservoir situated above the grate
or stove, and which is provided with an outlet or outlets into the room
or building as herein-after mentioned, and the chamber or chambers
and the said reservoir are so arranged the one with the other that the
air or portions of the air admitted, as herein-after described, must pass
into and through each one of them before it escapes into the room or
building.
A perforated pipe or pipes is or are provided communicating with the
external air, and by which the latter is admitted at as low a point or
points as convenient to the before-mentioned air chamber or chambers.
The air having been thus admitted into the air chamber or chambers
becomes heated by the influence of the fire in the grate or stove, and
ascending through them into the before-mentioned chamber or reservoir
above the grate or stove passes therefrom either directly through valves
provided for that purpose or by means of suitable pipes and apertures
into the room or building which it is desired to heat, a portion thereof
or the whole ultimately passing to the chimney, and thus assisting the
ventilation of the room or building in which the apparatus is employed.
The chamber or resevoir may be constructed so as to contain water 1
for evaporation when the air in the room or building is too dry.
A portion of the external air which is admitted by the before-
mentioned feeding pipe or pipes may be allowed, when desired, to escape
underneath the fire, and thus to increase the draught through the
same.
The several air pipes are provided with dampers or valves by which
the inlet and outlet of air can be regulated at pleasure.
The grate or the actual place for the fire is in this Invention con-
structed with two sets of fire-bars, the upper set being fixed and the

page_text: lower set being moveable by means of a suitable handle for the purpose
of regulating the draught through the grate. .
Such arrangement of fire-bars may be applied to all fire-grates and
stoves as well as to those used in connection with the remainder of this
Invention.