IMPROVEMENTS IN DOMESTIC FIRE-GRATES
Year: 1880

page_text: PROVISIONAL SPECIFICATION left by George Kerr Hannay at the Office
of the Commissioners of Patents on the 5th November 1880.
GEORGE KERR HANNAY, of Haverthwaite, in the County Palatine of Lancaster.
"IMPROVEMENTS IN DOMESTIC FIRE-GRATES."
The said Invention relates to improvements in domestic fire-grates, and has for
its object to so construct the said grates that they are rendered capable of
consuming the smoke evolved from fresh or green fuel supplied to them.
According to the said Invention, the grate proper or that part (which will
hereafter be called the "basket" part), which contains the fuel is formed of bars
or their equivalents, and is provided with pivots on either side at or about midway
between its upper and lower sides, upon which pivots the said basket part is mounted
in bearings in a carrier or framing so as to admit of the said basket part being
turned in a vertical plane upon these pivots, so that when so turned through half
a revolution that side which was its upper side becomes its under side, and that
side which was its underside becomes its upper side. Both the upper and under
side are provided with covers, or gratings of bars, or slotted or perforated plates,
which are attached to the basket part so that they may be turned or slidden to
either cover, or uncover the lower or upper side of the said basket part. It is preferred
to form each such cover or grating in halves, each of which may be attached to
the basket part by pivots upon which the said covers or gratings turn to cover or
uncover the said basket part, snugs or their equivalents being provided to retain
the said covers in position. Or in place of turning the said covers upon a centre
they may be slidden upon a stud or pin, or studs or pins fixed in the basket part
and engaging in a long slot or slots in the cover or grating. The carrier framing,
which carries the basket part, is or may be provided with an ash pan, and the
basket part is or may be formed with a solid back part and an open or barred front
part, in which case the said carrier or framing is mounted upon a foot or base
plate so that it and the basket part carried by it may be turned in a horizontal
plane to present the open front of the said basket part towards the room.
A reflector, constructed or arranged in accordance with the Invention, for which
I obtained Letters Patent, No. 702, dated as of the 17th day of February, A.D. 1880,
may be used in combination with a grate constructed according to my present
Invention.

page_text: When a grate constructed according to this said Invention is in use, the cover or
grating will cover the lower side of the basket part and upon it the fuel will rest.
When fresh fuel is to be supplied, the cover or grating of the upper side being
turned or slidden from off the said upper side, the fresh fuel is placed in the
basket part and the cover or grating is then turned or slidden into place. The
said basket part is now turned upon its pivots in the framing which carries it, so
that that which was its upper side is brought undermost, and consequently the
green fuel is beneath the live fuel which consumes the smoke from the said green
fuel passing therethrough.