IMPROVEMENTS IN SMOKE-CONSUMING for an Invention of GRATES AND IN MEANS CONNECTED THEREWITH FOR VENTILATING APARTMENTS
Year: 1882

page_text: LETTERS PATENT to William Isaac Henry of Chancery Lane in the County
IMPROVEMENTS IN SMOKE-CONSUMING
of Middlesex for an Invention of
GRATES AND IN MEANS CONNECTED THEREWITH FOR VENTILATING APARTMENTS."
PROVISIONAL SPECIFICATION left by the said William Isaac Henry at the
Office of the Commissioners of Patents on the 15th August 1882.
AND IN
WILLIAM ISAAC HENRY of Chancery Lane in the County
"IMPROVEMENTS IN SMOKE
THEREWITH FOR VENTILATING APARTMENTS."
CONSUMING
GRATES
of Middlesex
MEANS CONNECTED
noxious
This invention consists of a grate in which the smoke and other
products of combustion will be consumed before passing to the chimney, and in
means in connection therewith by which the vitiated air may be drawn from the
apartment in which the fire is burning and consumed.
In carrying out this invention as applied to a grate as at present in use I remove
the back of the grate and in lieu thereof I employ a grating or other open back.
Behind this grating is a chamber to receive iron turnings or other suitable material
which can be readily brought to a red heat.
The fire being lighted communicates its heat to the iron turnings in the chamber
and makes them red hot so that any smoke or noxious products afterwards passing
through are consumed.
In order to cause a draft through the fire into this chamber I close in the bottom
of the grate and shut down the register.
In order to ventilate the apartinent I provide a pipe one end of which is open
to the upper part of the apartment and the other end projects into the iron
turnings.
In connection with the upper part of the fi:e-place and open to the apartment is
a second and shorter pipe which joins the ventilating pipe to convey to the

page_text: chamber light gases from the lower part of the room and the grate. A baffle is
placed at the bottom of the ventilating pipe to prevent the entrance of smoke and
other products of combustion.
If desired a heating chamber open to the apartment and in connection with the
outer air may be placed under the grate to provide a supply of heated fresh air to
the apartment.
It will be evident that the arrangements for consuming smoke may be applied to
all kinds of grates stoves and kitchen ranges and may be used without the
ventilating apparatus, and also that the means for ventilating may be used without
the smoke consuming arrangement.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said William Isaac Henry in the Great Seal Patent Office on the
15th February 1883.
WILLIAM ISAAC HENRY of Chancery Lane in the County of Middlesex
"IMPROVEMENTS IN SMOKE CONSUMING GRATES AND IN MEANS CONNECTED
THEREWITH FOR VENTILATING APARTMENTS
"
This Invention consists of a novel arrangement of grate in which the smoke and
other noxious products of combustion will be consumed before passing to the
chimney and also of means in connection therewith by which the vitiated air may
be drawn from the apartment and consumed.
In the accompanying drawing Fig: 1 is a front elevation of the chimney breast
in a room with iny Invention applied thereto and Fig: 2 is a transverse section of
the same.
A is a grate which may be of any ordinary construction, but which I prefer shall
be of the kind known as a slow combustion grate that is having a solid bottom.
The ordinary back I remove and in place thereof I adopt an open back of any
convenient kind or I may leave the back quite open as shewn in the drawing.
Behind the grate I place a rectangular or other suitably shaped case or recep-
tacle B which I fill with iron turnings or other suitable material that can be readily
brought to a red heat.
This case or receptacle B is closed at its two sides, back and bottom and is open
in front to the grate and at top to the chimney. The iron turnings or other
material may be thrown into the case B pell nell in which case it is desirable to
have some means for preventing its falling into the grate or it may be arranged on
shelves as shewn.
When an ordinary grate is used the botton is closed by a metal plate or in any
other convenient manner.
A fire is lighted in the grate in the ordinary way the register being preferably
open and as soon as the fire has burned up the register is closed and the flames
smoke and products of combustion are caused by the draught to pass through the
open back into the receptacle B and through the iron turnings or other material
which rapidly becomes an incandescent mass.
When the mass of iron turnings or other material once gets red hot it will
continue in that state so long as the fire is burning and the smoke and other
products of combustion being bound to pass through the incandescent mass will be
consumed and their deleterious properties destroyed.
The means for drawing off the vitiated air from the upper part of the apartment
consists of a suitably shaped box ventilator C having an open front or grating and
which is let into the front wall of the chimney close to the cornice of the room as
shewn in the drawing. From the back of this ventilator C and inside the chimney,
project downwards, into the case or receptacle B. two or more pipes D Below
the lower end of each of these pipes D is placed a baffle a which prevents the
entrance of smoke and the products of combustion. The action of these pipes will
be like that of a syphon, the upward draught in the chimney caused by the heat
rising from the incandescent mass in the receptacle B will cause a suction in the
pipes D which will draw in through the ventilator C the vitiated air from the
upper part of the room and burn it in the receptacle B.-In some cases the pipes D
may by means of a bend (shown in dotted lines at D* Fig: 2) be connected with
the upper part of the grate A so that any light gases which may escape upwards
from the fire may be drawn into the receptacle B and burned.

page_text: Instead of projecting into the receptacle B, the ventilating tubes D may be
connected with openings in the sides of the grate or in any other convenient and
suitable part of the grate.
In town bouses which are generally of considerable height with kitchens in the
basement ventilating tubes from all the rooms above may be carried down to the
kitchen range which may be formed with a smoke consumer as above described
In this manner the ventilation of the apartments will be effected at all times of
the year.
Below the grate A and the receptacle B I may arrange a hot air chamber E into
which cold air from outside may be introduced by the pipe E' and when warmed
may be conveyed to the room by pipes E2 or in any other convenient manner. I may
however remark that this air heating apparatus forms no part of my Invention
and is not intended to be claimed.
It will be evident that the smoke consumer may be used without the ventilating
apparatus if desired and that the connection between the ventilating pipes and the
smoke consumer is capable of being greatly modified without departing from the
principle of my invention and that the form of the smoke consumer and the
manner of arranging the iron turnings or other materials therein may also be
considerably varied
"
Having now described the nature of my invention of "Improvements in smoke
consuming grates and in means connected therewith for ventilating apartments
and explained the manner of carrying the same into effect, I wish it to be understood
that I claim :-
First A smoke consuming grate constructed and arranged substantially as
herein shewn and described.
Second The means substantially as herein shewn and described for drawing off
the vitiated air from apartments.
In witness whereof I the said William Isaac Henry have hereunto set my
hand and seal the Fifth day of February in the year of our Lord One
thousand eight hundred and eighty three.
דמזוזו
(gin)
דעוחו
T
VOT VI