Improvements in the Construction of Vertical Steam Boilers, having for their Object a very Large Amount of Well Distributed Effectual Heating Surface and the Economising of Fuel.
Year: 1888

page_text: Improvements in the Construction of Vertical Steam Boilers, having
for their Object a very Large Amount of Well Distributed
Effectual Heating Surface and the Economising of Fuel.
THOMAS FLETCHER PASSMAN Boiler Maker Depot Road Middlesbrough and JOHN
FREDERICK WAKE Merchant 33 Wilson Street Middlesbrough do hereby declare the
nature of this invention to be as follows:-
This invention relates to improvements in what are known as Vertical Boilers that
are adapted for either Land or Marine purposes. It consists of an ordinary upright
shell with an internal fire-box and across the sail internal fire-box is placed in a
cylindrical tube of suitable dimensions to be easy of access from the side of the shell
and from the centre and top of this tube is fixed a tapered or cylinder shaped water
pot or steam generator to the top of this water pot or steam generator and also to the
top of the fire-box are fitted two flat or curved to any suitable radius bored tube plates
or crowns which are connected to each other by a suitable number of steam and water
circulating boiler tubes such as the various sizes of boilers may require and placed
alternately so that the heated Gases in their passage to the chimney must impinge on
their surfaces thus causing a rapid and most perfect circulation throughout the whole
structure.
From the crown of the fire-box to the crown of the shell is placed the uptake of the
chimney.
Other improvements relating to perfect combustion and economisation of Fuel the
fire-grate and bearers are formed into a square thus reducing the area of the cylinder
shaped fire box and to which is fitted a suitable Fire-brick Bricks or Blocks or any
other fire resisting material tapered off to the sides of the fire-box thus preventing cold
air being drawn up the sides of the fire-liox and thereby causing a better draught and
a more perfect combustion of the fuel than at present is the case and which can be
adapted to any Boiler of the Vertical type.
Dated this Fifth day of April One thousand eight hundred and eighty-eight.

page_text: Improvements in the Construction of Vertical Steam Boilers, having
for their Object a very Large Amount of Well Distributed
Effectual Heating Surface and the Economising of Fuel.
THOMAS FLETCHER PASSMAN Boiler Maker Depôt Road Middlesbrough and JOHN
FREDERICK WAKE Merchant 33 Wilson Street Middlesbrough 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 what are known as Vertical Boilers that
are adapted either for Land or Marine purposes.
It consists of an ordinary upright shell and internal fire box, and across the said
internal fire box is placed a cylindrical tube of suitable dimensions to be easy of access
from the side of the shell. From the centre and top of this tube is fixed a tapered or
a cylinder shaped water pot or steam generator; to the top of the said water pot or
steam generator, and also to the top of the fire box are fitted two flat or curved to any
suitable radius, bored or perforated tube plates or crowns, which are connected together
by a suitable number of steam and water circulating tubes such as the size of the
Boilers may require and placed alternately so that the heated Gases will impinge on
the surface of the said tubes in passing to the chimney, and so causing a rapid and
most perfect circulation throughout the whole structure. From the crown of the
fire box to the crown of the shell is placed the uptake to the chimney.
Other Improvements which relate to the perfect combustion and economisation
of Fuel are as follows:-The fire grate and bearers are formed into a square so
reducing the area of the cylinder shaped fire box circle, and to which is fitted a
suitable shaped fire brick bricks or block or any other fire resisting material; tapered.
off from the sides of the fire box as per drawing and so preventing cold air being.
drawn, up the sides of the fire-box and thereby causing a better draught and a
more perfect combustion of the fuel than at present is the case and which can be
adapted to any Boiler of the Vertical type.
In reference to the Drawings annexed the nature of this Invention will be more
clearly understood by the following description.
viz. Figure No. 1. Sectional elevation. A. Boiler Shell. B. Fire-box. C tapered
water pot or steam generator. D cross tube, E, E. hored or perforated tube plates or
crowns, FF steam water circulating tubes. G uptake to chimney. H H Bricks or
Blocks forming square shaped fire grate & bearers.

page_text: Figure No. 2. Sectional plan E perforated tube plate, fitted into water pot C.
D shewing the plan of cross water tube. H, H, Fire brick blocks forming the square
shaped fire grate and bearers.
Having thus declared and ascertained the nature of our said Invention and in
what manner it is to be performed, we would observe in conclusion that what we
consider novel and original, is the arrangement of the steam & water circulating tubes
from the bored or perforated tube plates or crowns together with the form and
arrangement of fire-grates and bearers: being understood that we do not claim the
constitutent.parts thereof and apart from the purposes of our said Invention.
Dated this Eleventh day of January One thousand eight hundred & eighty-nine.
THOMAS FLETCHER PASSMAN.
JOHN FREDERICK WAKE.