IMPROVEMENTS IN GAS HEATING STOVES, WHICH IMPROVEMENTS ARE ALSO PARTLY APPLICABLE TO HEATING APPARATUS GENERALLY, AND TO THE PREVENTION OF KITCHEN BOLLER EXPLOSIONS
Year: 1881

page_text: PROVISIONAL SPECIFICATION left by James Wadsworth at the Office of
the Commissioners of Patents on the 1st October 1881.
JAMES WADSWORTH, of the City of Manchester. "IMPROVEMENTS IN GAS
HEATING STOVES, WHICH IMPROVEMENTS ARE ALSO PARTLY APPLICABLE TO
HEATING APPARATUS GENERALLY, AND TO THE PREVENTION OF KITCHEN BOLLER
EXPLOSIONS."
The object of this Invention is (firstly), the construction of a gas heating stove
which shall heat a large quantity of air to a moderate temperature, and consists in
employing one or more ordinary illuminating burners situated in the lowest part
of the stove. The products of combustion from the burners are received into a
vertical conical hood which rises some distance into the stove. This hood is
surrounded by a head or terminal, which is a special feature in this Invention,
constructed with a series of passages and directions in such manner that the main
rising current from the burners shall induce a large body of air to enter and mingle
with such main current, and which is finally discharged, preferably in a horizontal
direction, through one or more outlets of conical form.
Secondly. This Invention refers to a heating stove in which the products of
combustion are collected and discharged into a chimney, and prevented entering
the apartment in which the stove is burning, and consists in employing the same
arrangement of burner with receiving hood; but the hood is carried up a short
distance inside a receiver formed of a number of convolutions, and presenting a
large surface to the heated products of combustion, and also to the external air.
This convoluted chamber is surrounded with an outer casing which assists the
circulation of the air through the air convolutions. The products of combustion are
taken off by a suitable pipe near the bottom of the chamber. This modification of
my said Invention may be arranged as a disposer, and be filled with hot water
kept heated by a small boiler constructed in the lower part of said convoluted
chamber. The boiler consists of an outer water casing and an inner water pocket
depending from the top of the boiler. A dividing plate extends up between these
water surfaces, so as to compel the products of combustion to pass over the entire
surface, and so I produce a very effective hot water boiler for the purposes of this
•

page_text: Invention. Instead of placing the boiler immediately under the convoluted
chamber before mentioned, it may be placed in the basement of a house and con-
nected to it by a flow and return pipe, or, by preference, with a special pipe which I
construct as follows:-I take a large outer pipe and insert a smaller pipe within it.
The inside pipe is perforated at intervals so as to establish a connection between
the inside of each pipe. I find that a pipe so constructed serves all the purposes
of the usual flow and return pipe, and possesses the additional feature that if
frozen up immediately the fire is lighted the ice within it naturally thaws along
its length as the heat increases, in virtue of the flow returning at the frozen part
through the perforations in the inner pipe. It is obvious that this part of my
Invention is applicable to all classes of domestic boilers or other purpose when
the heating pipes are liable to be frozen and occasion risk of explosion.