Improvements in or connected with Kitchen Boilers.
Year: 1895

page_text: Date of Application, 27th Feb., 1895
Complete Specification Left, 27th Nov., 1895-Accepted, 28th Dec., 1895
PROVISIONAL SPECIFI
Improvements in or connected with Kitchen Boilers.
I, WILLIAM ROCKLIFFE of 8 Clarence Crescent, Whitley in the County of
Northumberland, Engineer, do hereby declare the nature of this invention to be as
follows:-
:-
This invention relates to improvements in or connected with kitchen boilers and
consists substantially in constructing and arranging the escape or atmospheric pipe
as a component part of the boiler in such a manner as to provide easy egress to
steam generated from any cause within the boiler or its connections.
Boiler accidents frequently arise through the entry of cold water from the
eistern into the empty boiler shell the plates of which have become heated or
red-hot by the fire without knowledge of the attendants.
The sudden generation of steam thus produced cannot escape through the
small escape pipes at present in use and I propose to greatly enlarge such escape
pipes so as to enable them to freely discharge any possible volume of steain
suddenly or otherwise generated within the boiler.
I may also connect the escape pipes where desirable with the boiler or at its
bottom by an auxiliary pipe or pipes so as to aid in keeping the escape pipe always
o en.
1
1
□ 1905
C
A. CRAWHALL CHAPMAN,
3 St. Nicholas Buildings, Newcastle-on-Tyne, Patent Agent.
1, WILLIAM ROCKLIFFE of 8 Clarence Crescent, Whitley in the County of
Northumberland, 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 :-
This invention relates to improvements in or connected with kitchen boilers and
consists substantially in constructing and arranging the escape or atmospheric pipe
as a component part of the boiler in such a manner as to provide easy egress to
steam generated from any cause within the boiler or its connections.
Boiler accidents frequently arise through the entry of cold water from the
cistern into the empty boiler shell the plates of which have become heated or
red-hot by the fire without knowledge of the attendants.
The sudden generation of steam thus produced cannot escape through the small
escape pipes at present in use and I propose to greatly enlarge such escape pipes
so as to enable them to freely discharge any possible volume of steam suddenly or
otherwise generated within the boiler.
Referring to the accompanying drawing, a is a kitchen boiler with inlet or supply
pipe a. The pipes a² a³ represent the How and return pipes in connection with
a circulating system. 5 is a safety pipe which should not be less than one

page_text: and an half inches diameter communicating directly between the boiler and the
atmosphere and which thus acts as a free exit for steam generated from any cause
within the boiler. A water gange W may be fitted in a convenient position on
this pipe so that if from any cause the supply cistern or pipe fails to act or to
supply water to the boiler, the water gauge will at once show the defect and
remedial measures can then be taken to prevent damage or accident. The gauge
may of course be fitted with cocks at er and otherwise in the usual way.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed 1 declare that what I
claim is :-
In combination with kitchen boilers a safety pipe such as 5 communicating
directly between the boiler and the atmosphere substantially as berein set forth.
Dated this 22nd day of November 1895.
A. CRAWHALL CHAPMAN,
Newcastle-on-Tyne, Patent Agent.
A. CRAWHALL CHAPMAN,
Newcastle-on-Tyne, Patent Agent.