Improvements in Domestic Fire Grates.
Year: 1892

page_text: Date of Application, 26th Nov., 1892
Complete Specification Left, 28th Aug., 1893-Accepted, 14th Oct., 1893
PROVISIONAL SPECIFICATION.
Improvements in Domestic Fire Grates.
We, ROBERT HUNTER of the Firm of Walker, Hunter & Co., Port Downie
Iron Works, Falkirk, Stirlingshire, Ironfounders, and JOHN TURNBULL Foreman
Pattern Maker at Port Downie Iron Works, aforesaid, do hereby declare the
nature of this invention to be as follows:-
:-
This invention relates to improvements in domestic fire grates more especially
of the type known as "Register" and "Kinnaird "grates and it has for its object
the provision of an improved damper or ventilator for regulating the opening to the
chimney between the canopy and the back of the grate.
The canopy is fixed and forms part of the upper front of the grate and at its
lower open end it is formed with curved guides in the sides or ends of the canopy
within which is fitted a segmental damper adapted to slide in a curved path in said
guides, so that when lowered by means of a knob or catch with which it is provided,
it may bear on the back brick or back of the grate and entirely close the outlet to
the chimney or may regulate the extent of opening of such outlet, and when fully
raised it may pass up into the projecting canopy leaving the outlet full open.
A rack or ratchet may be formed on the damper piece or on the guideway in the
canopy or on both to facilitate the retention of the damper in any position to which
may be set by hand.
it
Dated this Twenty-fifth day of November 1892.
CRUIKSHANK & FAIRWEATHER,
62, St. Vincent Street, Glasgow, Agents.
COMPLETE SPECIFICATION.
Improvements in Domestic Fire Grates.
We, ROBERT HUNTER of the Firm of Walker, Hunter & Co., Port Downie
Iron Works, Falkirk, Stirlingshire, Ironfounders, and JOHN TURNBULL, Foreman
Pattern Maker at Port Downie Iron Works, aforesaid, do hereby declare the
nature of this invention and in what manner the same is to be performed, to be
particularly described and ascertained in and by the following statement :-
This invention relates to improvements in domestic fire grates more especially of
the type known as "Register" and "Kinnaird" grates and it has for its object the
provision of an improved damper or ventilator for regulating the opening to the
chimney between the canopy and the back of the grate.
In the accompanying drawings
Figure 1 is an elevation of a grate and
Figures 2 and 3 the transverse vertical sections showing the canopy with the
damper in its open and closed positions.
The canopy A is fixed with hooks and screws to form part of the upper front of
the grate B and at its lower open end it is formed with curved guides at a in the
sides or ends of the canopy or an inside cover A' is secured to the canopy to serve
as a guide within which is fitted a segmental damper C adapted to slide in a curved
path in said guides, so that when lowered by means of a knob or catch c with which
is provided, it may bear on the back brick D or back of the grate and entirely
close the outlet to the chimney as indicated at Figure 3 or may regulate the extent
of opening of such outlet, and when fully raised as indicated at Figure 2 it may
pass up into the projecting canopy A, leaving the outlet full open. A rack or
Price Rd 1

page_text: ratchet E may be formed on the damper piece or as shown on the guideway a in
the canopy or on both, the damper being formed with a tooth or catch piece F on
each side to facilitate the retention of the damper in any position to which it may
be set by hand.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is:-
In a domestic fire grate the combination of a canopy having a curved or other
guideway and a damper adapted to slide and be adjustably retained therein substan-
tially as and for the purpose set forth.
Dated this 26th day of August 1893.
CRUIKSHANK & FAIRWEATHER,
62, St. Vincent Street, Glasgow, Agents.