Improvements in Steam Boiler Furnaces.
Year: 1891

page_text: Date of Application, 19th Oct., 1891
Complete Specification Left. 8th July, 1892-Accepted, 13th Aug., 1892
PROVISIONAL SPECIFICATION.
Improvements in Steam Boiler Furnaces.
I, SAMSON Fox, of Leeds Forge, Leeds in the County of York, Civil Engineer,
do hereby declare the nature of this invention to be as follows:-
In the Specification of Henry Crompton Ashlin No. 6718 of June 5th 1890
there are described certain improvements in steam boiler and similar furnaces
having for object to facilitate the application and removal of the furnaces more
particularly in marine boilers where great difficulty is at present experienced when
an old furnace has to be removed and a new one inserted.
My invention has reference to an improved construction of the bottom and side
portions of the plate forming the combustion chamber required to be used in con-
nection with the furnace described in the before mentioned Specification and
consists in so extending the bottom and side portions of the said plate of the
combustion chamber (which may be made either plain or corrugated) as to meet
the bottom of the diagonally cut furnace described in the before mentioned
Specification of the said H. C. Ashlin.
W. LLOYD WISE,
James G. Stokes,
46, Lincoln's Inn Fields, London, W.C., Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Steam Boiler Furnaces.
I, SAMSON FOX, of Leeds Forge, Leeds in the County of York, Civil 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:-
In the Specification of Henry Crompton Ashlin's Patent No. 6718 dated
1st May 1890 there are described certain improvements in steam boiler and similar
furnaces having for object to facilitate the application and removal of the furnace
tubes, more particularly in marine boilers where great difficulty is at present
experienced when an old furnace tube has to be removed and a new one inserted.
Now my invention has reference to an improved construction of the combustion
chambers in such furnaces as I will now proceed to explain with reference to the
accompanying illustrative drawings, whereof
Fig. 1 is a longitudinal vertical section of a marine boiler embodying my
invention.
Fig. 2 is a side view of my improved furnace bottom.
A is the furnace tube constructed according to Ashlin's Patent; B is the
combustion chamber; C the bottom thereof constructed according to my invention.
As will be seen, the bottom and side portions of the plate forming the combustion
chamber bottom C (which may be made either plain or corrugated) are so extended
as to meet the bottom of the diagonally cut furnace tube A. In the case of
existing boilers in which provision has not originally been made for the adoption of
Ashlin's invention, the furnace tubes can be readily connected to the combustion
chambers by means of bottoms such as C according to my present invention.

page_text: 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 :-
In a steam boiler furnace of the kind described in the Specification of Ashlin's
Patent No. 6718 dated 1st May 1890 the hereinabove described improved con-
struction of combustion chamber wherein the bottom and side portions are extended
to receive the furnace tube as set forth with reference to and illustrated in the
drawings hereunto annexed.
Dated this 8th day of July 1892.
W. LLOYD WISE,
Per F. J. Brougham,
46, Lincoln's Inn Fields, London, W.Č., Agent for the Applicant.