Improvement in Vertical Steam Boilers, Having for its Objects a Large Amount of Heating Surface Coupled with Ease of Access thereto for Cleaning and Repairing Purposes.
Year: 1886

page_text: Date of Application, 21st April, 1886.
Complete Left, 4th Dec., 1886.
Complete Accepted, 5th Jan., 1887.
Improvement in Vertical Steam Boilers, Having for its Objects a
Large Amount of Heating Surface Coupled with Ease of Access
thereto for Cleaning and Repairing Purposes.
I CHARLES CRAWFORD MARLEY of Number 12 Dunning Street Middlesbrough in the
County of York Engineer do hereby declare the nature of my invention for
IMPROVEMENT IN VERTICAL STEAM BOILERS to be as follows:-
The improvement consists of a tube being placed directly across the flame box
approached by a door placed in the outside shell with an upright conical shaped box
placed in the centre of the first named tube having its largest diameter at the top and
both of sufficient size to be easy of access. From the sides of the upright conical
shaped box are tubes placed to the sides of the flame box at right angles to the first
named tube and at the top of the same upright conical shaped box are three tapered
tubes placed at equal centres connected therewith and fixed to the crown of the flame
box. The improvement can be adapted to any circular vertical boiler.

page_text: COMPLETE SPECIFICATION.
Improvement in Vertical Steam Boilers, Having for its Object a
Large Amount of Heating Surface Coupled with Ease of Access
thereto for Cleaning and Repairing Purposes.
care of
I CHARLES CRAWFORD MARLEY late of 12 Danning Street and now
Mr. George Robson 23 Linthorpe Road both in Middlesbrough in the County of York
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 improvement applies to what are known as Donkey Boilers which are subject to
impure water quickly forming salt scale and other foreign matter. It consists of a
tube being placed directly across the flame or fire box approached by: a door in the
outside shell with an upright conical shaped box placed in the centre of the first
named tube and having its largest diameter at the top and both of sufficient size to be
easy of access. From the sides of the upright conical shaped box are tubes placed to
the sides of the flame or-fire-box at right angles to the first named tube and at the top
of the same upright conical shaped box there are three tubes slightly tapered placed
at equal centres connected thereto and fixed to the crown of the flame or fire-box.
Having described the nature of my improvement I herewith annex a drawing
illustrative thereof showing half plan and half vertical section. A. A. is the fire or flame
box. B is the cross tube. C is the upright conical shaped box. D'are the tubes at right
angles to the tube marked B. E. E are the tubes connecting conical shaped box to the
crown of the flame or fire box. F is the chimney. G is the manhole door placed in
the outside shell.
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 :-