Improvements in or connected with Furnaces for Heating Steam Boilers or for other purposes.
Year: 1890

page_text: Date of Application, 21st Jan., 1890
Complete Specification Left, 21st Oct., 1890-Accepted, 17th Jan., 1891
PROVISIONAL SPECIFICATION.
Improvements in or connected with Furnaces for Heating Steam
Boilers or for other purposes.
I HUGH CHRISTIE PATERSON of 17 Camden Gardens Uxbridge Road in the County
of Middlesex Engineer do hereby declare the nature of this invention to be as
follows:-
The object of my invention is to provide means for efficiently preventing or
consuming smoke and economising fuel in steam boilers or other furnaces.
According to my invention I provide in or towards the front portion of the
furnace or in the furnace door a passage or passages receiving air from outside
the furnace at their lower ends and conveying it upwards and delivering it at or
towards the upper part of the front of the furnace, their outlets being curved or
shaped so as to direct the air towards the part above the fire. In proximity to
the said outlets I provide a deflecting plate or arch for insuring the delivery of
the air at the proper part. This plate or arch I prefer to make adjustable in such
manner that its angle may be altered until the most beneficial direction of the air is
obtained.
Dated this 21st day of Janne 1800
J. H. JOHNSON & Co.,
47, Lincoln's Inn Fields, London, W.C., Agents.
COMPLETE
SPECIFICATION.
Improvements in or connected with Furnaces for Heating Steam
Boilers or for other purposes.
I HUGH CHRISTIE PATERSON of 15 Camden Gardens Uxbridge Road in the County
of Middlesex Engineer 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 my invention is to provide means for efficiently preventing or
consuming smoke and economising fuel in steam boilers or other furnaces.
According to my invention I provide in or towards the front portion of the
furnace or in the furnace door a passage or passages receiving air from outside
the furnace at the lower end or ends of the said passage or passages and conveying
it upwards and delivering it at or towards the upper part of the front of the
furnace the outlet or outlets of the said passage or passages being curved or shaped
so as to direct the air towards the part above the fire. In proximity to the said
outlets I provide a deflecting plate or arch for ensuring the delivery of the air at
the proper part. This plate or arch I prefer to make adjustable and fixable in
its adjusted position in such manner that its angle may be altered until the most
beneficial direction of the air is obtained.
And in order that my said invention may be fully understood I shall now
proceed more particularly to describe the same and for that purpose shall refer to
the accompanying drawing which represents the front end of a furnace with my
invention applied thereto. In the door A there is formed a passage a opening at the
lower part a² to the outer air and at the upper part a³ into the upper part of the
furnace. Just inside the door of the furnace is built up a brickwork lining C having
a square or rectangular passage to accommodate the deflecting plate B centered
at b. This plate may be either flat or arched and may be perforated as shewn or
not as desired. It is provided at each side with the slotted lugs 2 through the
slots in which pass pins which enter also the brickwork lining and are provided

page_text: with nuts 3 or equivalent means for fixing the plate B. in the position to which
it has been brought.
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 1
claim is.
In furnaces a passage or passages in the door or front of the furnace receiving
air at its lower part and discharging it into the upper part of the furnace beneath
a deflecting plate B. by which it is directed downwards onto the fire substantially as
herein before described.
Dated thin 014 1...
1000
J. H. JOHNSON & Co.,
Agents.