Improvements in connection with Chimney Flues.
Year: 1893

page_text: Date of Application, 21st Nov., 1893
Complete Specification Left, 21st Sept., 1894-Accepted, 27th Oct., 1894
PROVISIONAL SPECIFICATION.
Improvements in connection with Chimney Flues.
I EVERARD HOME MORGAN of Highview Road, Upper Norwood, Surrey,
Gentleman, do hereby declare the nature of this invention to be as follows:-
The object of this invention is to provide means for preventing down draught in
chimneys, and at the same time for economising the heat which is apt to be lost by
too rapid escape up the flue.
According to my invention, I insert in the chimney a metal box or case, open at
top and bottom, and fitting the flue with the aid, if necessary, of mortar or its
equivalent, so that all the products of combustion from the fire pass through the
said box.
Within the box are baffle plates extending about 3rds across the box, and
inclining in an upward direction at an angle of about 45°.
These baffles or interceptors, of which there may be four or five, are arranged
alternately on opposite sides of the box, so as to make a zig-zag passage for the
smoke.
By this arrangement, the heat is prevented from escaping too rapidly up the
chimney, and the smoke, which contains many heavy gases, which quickly cool,
and have, in consequence, a downward tendency, is prevented from descending.
Dated this 21st day of November 1893.
NEWTON & SON,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in connection with Chimney Flues.
I EVERARD HOME MORGAN of 15 Highview Road Upper Norwood Surrey
Gentleman 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 :-
The object of the present invention is to provide means whereby au economy in
fuel consumed in fire places and grates may be effected.
According to my invention I introduce into the chimney or smoke passage a
metal box or case provided internally with baffles or deflectors arranged alternately
on either side of the box so as to make a zigzag passage for the smoke.
In the accompanying drawing I have shown my invention applied to the chimney
of an ordinary fire grate.
Fig. 1 shows the box in position in sectional side elevation.
Fig. 2 is a horizontal section on the line
of Fig. 1 of the box detached.
A is the casing formed preferably of sheet metal to correspond with the internal
shape of the chimney immediately over the fire place.
a are baffles or deflectors of which I have shown three attached alternately to the
back and front of the box A and inclined upwards at an angle approximately to
half a right angle. These deflectors a projecting inwards contract the size of the
smoke passage and cause the products of combustion and heat rising from the fire
to take a zigzag course thereby preventing a too rapid combustion of fuel.

page_text: The casing A may be retained in position by a wire or wires b extending across
the box and engaging with their ends the front and back of the register. Other
means of securing the box may however be employed if preferred.
The box A may be readily inserted in position and its removal for chimney
cleaning may be effected by merely disengaging the wires b and drawing the box
down from the chimney.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
The employment in chimneys and smoke passages of an intercepting device
consisting of a metal casing fitting the chimney and provided internally with
baffles or deflectors arranged alternately on opposite sides so as to cause the products
of combustion to take a zigzag course substantially as described and illustrated for
the purpose set forth.
Dated this 21st day of September 1894.
NEWTON & SON,
Agents for the Applicant.