IMPROVEMENTS IN AND APPLICABLE TO KITCHEN RANGES, GRATES, AND OTHER FURNACES AND FIRE-PLACES
Year: 1877

page_text: LETTERS PATENT to Robert Chalmers Anderson, of Lower Ormond Quay,
Dublin, in the County of Dublin, Ireland, Plumber, for the Invention of
"IMPROVEMENTS IN AND APPLICABLE TO KITCHEN RANGES, GRATES, AND OTHER
FURNACES AND FIRE-PLACES."
Sealed the 8th September 1877, and dated the 8th March 1877.
PROVISIONAL SPECIFICATION left by the said Robert Chaliners Anderson
at the Office of the Commissioners of Patents on the 8th March 1877.
ROBERT CHALMERS ANDERSON, of Lower Ormond Quay, Dublin, in the County
Dublin, Ireland, Plumber. "IMPROVEMENTS IN AND APPLICABLE TO KITCHEN
RANGES, GRATES, AND OTHER FURNACES AND FIRE-PLACES."
То
My said Invention relates to improvements in and applicable to kitchen ranges,
grates, and other furnaces and fire-places, whereby the space for containing fuel
may be increased or decreased at pleasure in a simple and convenient manner.
this end I make the bottom of the fire-place capable of sliding or moving up and
down; and I support it by cams or eccentrics on a shaft operated by a worm and
wheel, so as by turning a handle to cause the said bottom to be raised or lowered
as may be required without disturbing the fire, and to remain in the position to
which it is so moved, thus reducing or enlarging the fire-place according to circum-
stances, and effecting a saving in the quantity of fuel consumed.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Robert Chalmers Andrerson in the Great Seal Patent Office on the
8th September 1877.
ROBERT CHALMERS ANDERSON, of Lower Ormond Quay, Dublin, in the County
of Dublin, Ireland, Plumber. "IMPROVEMENTS IN AND APPLICABLE TO KITCHEN
"s
RANGES, GRATES, AND OTHER FURNACES AND FIRE-PLACES."
My said Invention relates to improvements in and applicable to kitchen ranges,
grates, and other furnaces and fire-places, whereby the space for containing fuel
[Price 4d.]

page_text: To
may be increased or decreased at pleasure in a simple and convenient manner.
this end I make the bottom of the fire-place capable of sliding or moving up and
down; and I support it by cams or eccentrics on a shaft operated by a worm and
wheel, so as by turning a handle to cause the said bottom to be raised or lowered
as may be required without disturbing the fire, and to remain in the position to
which it is so noved, thus reducing or enlarging the fire-place according to circum-
stances, and effecting a saving in the quantity of fuel consumed.
In order that the said Invention may be more readily understood and carried
into practice I will describe the accompanying Drawings.
Fig. 1 represents a front elevation of an ordinary kitchener or range, showing the
application of my improved apparatus.
Fig. 2 is a front view of the apparatus, per se; Fig. 3 is a transverse vertical
section of same on line x, x, Fig. 2.
A represents the frame of the apparatus; B, the shaft which rotates in suitable
bearings b, b, and on which are keyed the cams or eccentrics C, C, and the worm
wheel D;
F, F, are guides capable of sliding up and down in brackets fixed at the
back of the frame; on these guides the bottom E of the grate rests; L is a lever
handle, which runs into the worm P, the latter gearing with the worm wheel D.
It will be obvious that by turning the handle L the shaft B will rotato, and the
cams or eccentrics operating on the guides F, F, will cause the bottom of the grate
to rise or fall at pleasure.
Having thus described my said Invention, and the manner of carrying the samo
into effect, I would have it understood that what I consider as new and useful, and
therefore claim as the Invention secured to me by the herein-before in part recited
Letters Patent is, the method, substantially as described in reference to the accom-
panying Drawings, of enlarging or reducing the space in grates and furnaces for the
purpose specified.
In witness whereof, I, the said Robert Chalmers Anderson, have hereunto set
my hand and seal, this Seventh day of September, in the year of our Lord
One thousand eight hundred and seventy-seven.
Witness,
J. A. FAHIE,
2, Nassau Street,
Dublin.
ROBERT CHALMERS ANDERSON. (L.B.)