Year: 1887

page_text: Date of Application, 22nd Mar., 1887.
Complete Left, 25th Apr., 1887.
Complete Accepted, 5th July, 1887.
THOMAS WILLIAM BALLARD 13 Rippoth Road Old Ford, County of Middlesex,
Manufacturer of Asbestos Fuel, do hereby declare the nature of this invention to be
as follows:
This invention relates to that class of Gas stove known as the "Cosy" designed for
heating rooms or compartments, the object being to give a more even diffusion of
flame for heating the asbestos, and fireclay over the whole of the heating surface, and
also to economise the consumption of gas.
The so called "Cosy" stoves as at present constructed are provided at their base or
up the sides with a gas pipe from which the flame when ignited burns upward
amongst the asbestos, thereby burning more intensely at the bottom, or base of the
stove than at any other part, whereas according to my construction of stove I diffuse
the heat uniformly over the whole surface.
In carrying out these objects I construct the back plate or foundation of the stove
of a hollow fire brick slab, the front portion of which may be smooth or have a lumpy
surface, the front portion is also provided with a number of holes or perforations
communicating with the hollow interior of the brick or slab, these holes communi-
cating with the interior space I prefer to leave, one alternate half open for the emission
of gas, and the remaining alternate half 1 fill in with asbestos fibre.
The bottom of this hollow brick is coupled up to a gas pipe burner of the class
well known as the "Bunsen ** so that when the gas is turned on it will fill the interior
space of the hollow brick or slab, and issue therefrom through those perforations left
open, the gas so issuing when ignited will cause the flames to play uniformly over the
whole surface or area of that part of the stove amongst the asbestos fibre, and so
diffuse an uniform heat thereto. The heat thus diffused raises the temperature of the
interior space of the brick or slab, and thus intensifies the heating properties of the
gas, thereby economising its consumption.
1007
THOMAS WRIGLEY,
36, High Holborn, W.C.,
Agent to Applicant.

page_text: Fig. 1. represents a front elevation of the "Cosy Stove," and
a transverse section through the line y-y of Fig. 1.
Fig.
In these Figs. a is the framing of the stove in which the hollow fire brick slab bis
supported.
The front of this slab may present a lumpy or undulating surface in imitation of
pieces of coal or incandescent fuel, or such front surface may be smooth.
"
Through the front portion of this fire brick slab perforations c are made communi-
cating with the hollow interior of the slab. These holes are so arranged that each
alternate hole or a portion of them will be filled in with asbestos fibre d so disposed
that lengths of the same will be distributed over the front surface of the slab, the
remaining holes will form passages or burners for the emission of heating gases.
Bunsen
The bottom of the hollow slab is provided with an atmospheric or
Burner e in connection with the gas pipe so that when the gas is turned on it will
pass into and fill the interior space b¹ of the hollow slab b with atmospheric gas, from
whence such gas issues through the perforations in the front portion of the slab. The
gas so issuing when ignited will cause the flames to play uniformly over the whole
surface or area of the front slab amongst the asbestos fibre and so diffuse an uniform
heat thereto.
The heat thus diffused raises the temperature of the interior space 61 of the slab,
and thus rarifies, and makes more intense the heating properties of the gas as it
escapes from the burners or perforations thereby economising its consumption.

page_text: Having now particularly described and ascertained the nature of my said Invention,
and in what manner the same is to be performed, I declare that what I claim is :-
1. In gas stoves known as the "cosy" the novel employment of a hollow fire brick
slab so perforated and provided with burners that the gases of combustion will be
uniformly diffused over the whole front surface of the stove amongst the asbestos
fibre, in the manner and for the purpose as herein substantially described, set forth
and fully illustrated in the Drawings annexed.
THOMAS WRIGLEY,
36, High Holborn, W.C.,
Agent to Applicant.