IMPROVEMENTS IN THE FIRE- GRATES OF FURNACES AND IN APPLIANCES CONNECTED THEREWITH
Year: 1881

page_text: PROVISIONAL SPECIFICATION left by Joseph Adams and Joseph Bonchill
at the Ollico of the Commissioners of Patents on the 7th November 1881.
JOSEPH ADAMS, of Sheepbridge, in the County of Derby, and JOSEPH
BONEILL, of Rotherham, in the County of York. "IMPROVEMENTS IN THE FIRE-
GRATES OF FURNACES AND IN APPLIANCES CONNECTED THEREWITH."
This Invention relates to improvements in the fire-grates of furnaces and to
appliances connected therewith."
The object of this Invention is so to construct and operate the fire-grates of
furnaces as that they can be readily cleared and cleaned of clinker in a far more
economical manner than is the case with the present construction of fire-grates.
The improved grato or set of fire-bars is so constructed as that it can be lowered
and turned partly round or completely revolved, the firo and coals being at the
same time held up by a grid or false grate, which is inserted into the grate above
the fire bars. The grates can be in one piece; or grates may consist of two or more
sets of bars in frames, which are so constructed as that they can be lowered and
revolved for the purpose of cleaning them.
In carrying into effect this Invention in a simple form a set of bars will be fixed
in a frame fitted with pivots or axles having a square part thereon on which n
spanner can be placed; these pivots rest in moveable or swinging brackets or arms,
which can be balanced by chain pulley and counter weight, and in using tho samo
a grid or false grate will be first inserted above the fire bars and under tho firo and
coals to hold them up. The set of fire bars will then be lowered for cleaning and
can be revolved by the spanner so as to present both faces to the operator, and will
be retained in any convenient position by the balance mechanism.
As a modification the set of fire bars can be revolved automatically by fixing on
the pivot a spur wheel and gearing it into a rack fixed to the frame of the furnace;
or the set of bars may be revolved by any equivalent mechanism instead of by
hand.
As a further modification to dispense with the loose grid and to lower the bars
to be cleaned two sets of bars can be employed, each set being hinged at opposite
cuds of the frame, walls, or other part of the furnaco which support them, the

page_text: loose end of one set of bars meeting or joining up to the hinged end of the second
set of bars; the loose ends of ono set of bars are supported by a hinged standard or
by a hinged arin, which being withdrawn tho set of bars will fall and can easily
bo cleaned and cleared of clinker.
The above described two sets of bars will bo of the form of two ordinary tablo
forks the prongs of which are interlaced from opposite ends, the points of one fork
abutting upon the roots of the prongs of the opposito fork, the points of each fork
being sustained by a moveablo standard or bracket, so that the weight of fire and coal
thereon can be sustained, the said prongs being so close together that when ono set
is lowered the remaining sot will hold up the firo and coal without loss.
The sets of bars above described can be lowered by a lover or spanner fixed or
fitted to the pivot thereof, or by ordinary gearing fixed or connected thereto. Tho
bars may be fixed firmly to the pivots or may be hinged thereto, so that cach bar
may be raised independently for the purpose of removing "clinker," ctcetera. Tho
sets of bars abovo described may or may not bo supported at their loose ends as
found necessary in practiso and according to the length thereof.

page_text: PROVISIONAL SPECIFICATION left by Joseph Adams and Joseph Bonchill
at the Office of the Commissioners of Patents on the 7th November 1881.
JOSEPH ADAMS, of Sheepbridge, in the County of Derby, and JOSEPH
BONEHILL, of Rotherham, in the County of York. "IMPROVEMENTS IN THE FIRE-
GRATES OF FURNACES AND IN APPLIANCES CONNECTED THEREWITH."
This Invention relates to improvements in the fire-grates of furnaces and to
appliances connected therewith.
The object of this Invention is so to construct and operato the firo-grates of
furnaces as that they can be readily cleared and cleaned of clinker in a far more
economical manner than is the case with the present construction of fire-grates.
The improved grato or set of fire-bars is so constructed as that it can be lowered
and turned partly round or completely revolved, the firo and coals being at tho
same time held up by a grid or false grate, which is inserted into the grate abovo
the fire bars. The grates can be in one piece; or grates may consist of two or more
sots of bars in frames, which are so constructed as that they can be lowered and
revolved for the purpose of cleaning them.
In carrying into effect this Invention in a simple form a set of bars will be fixed
in a frame fitted with pivots or axles having a square part thereon on which a
spanner can be placed; these pivots rest in moveable or swinging brackets or arms,
which can be balanced by chain pulley and counter weight, and in using the same
a grid or false grate will be first inserted above the fire bars and under the fire and
coals to hold them up. The set of fire bars will then be lowered for cleaning and
can be revolved by the spanner so as to present both faces to the operator, and will
be retained in any convenient position by the balance mechanism.
As a modification the set of fire bars can be revolved automatically by fixing on
the pivot a spur wheel and gearing it into a rack fixed to the frame of the furnace;
or the set of bars may be revolved by any equivalent mechanism instead of by
hand.
As a further modification to dispense with the loose grid and to lower the bars
to be cleaned two sets of bars can be employed, each set being hinged at opposite
cuds of the frame, walls, or other part of the furnaco which support them, the

page_text: loose end of one set of bars meeting or joining up to the hinged end of the second
set of bars; the loose ends of one set of bars are supported by a hinged standard or
by a hinged arm, which being withdrawn the set of bars will fall and can easily
be cleaned and cleared of clinker.
The above described two sets of bars will bo of the form of two ordinary table
forks the prongs of which are interlaced from opposite ends, the points of ono fork
abutting upon the roots of the prongs of the opposite fork, the points of each fork
being sustained by a moveable standard or bracket, so that the weight of fire and coal
thereon can be sustained, the said prongs being so close together that when one set
is lowered the remaining set will hold up the firo and coal without loss.
Tho sets of bars above described can be lowered by a lever or spannor fixed or
fitted to the pivot thereof, or by ordinary gearing fixed or connected thereto. The
bars may be fixed firmly to the pivots or may be hinged thereto, so that cach bar
may be raised independently for the purpose of removing "clinker," ctcetera. Tho
sets of bars above described may or may not be supported at their loose ends as
found necessary in practise and according to the length thercof.