Improvements connected with Steam Generators.
Year: 1895

page_text: Date of Application, 16th Aug., 1905
Complete Specification Left, 15th May, 1896-Accepted. 20th June, 1896
Complete Specification Left, 15th May, 1896-Accepted. 20th June, 1896
PROVISIONAL SPECIFICATION.
Improvements connected with Steam Generators.
We, GRANVILLE SHARP ULLATHORNE, of 63 Queen Victoria Street, Civil
Engineer, and CHARLES EDWIN MONKHOUSE, of 38 Parliament Street, Gentleman,
both of London, do hereby declare the nature of this invention to be as follows:-
This invention relates to improvements in steam generators or boilers of the
type known as water tube or tubulous boilers, with the object that they may be, as far
as possible, safe from explosion, of light weight, easily constructed, and readily
cleaned, and that steam may be generated in them with exceptional rapidity with a
small consumption of fuel.
This boiler is constructed with two or more rows of tubes with spaces between
the tubes. The tubes are not horizontal, but are either vertical or inclined and
are connected together at each end, that is to say at top and bottom, by fixing
them into a box of annular or other suitable form at the top and a similar box
at the bottom. Outside the rows of tubes and the boxes, and enclosing them,
is placed a case large enough to leave a space between the case and the tubes
and the boxes. We make the tubes in the inner row or rows either straight
or curved, and of such a shape, and connected to the box at the bottom and
to the box at the top in such manuer that the tubes are not vertical, or
are vertical only at their ends but are at an angle with the vertical, and in
the case of a vertical cylindrical boiler having circular or annular boxes one at
top and one at bottom, that the tubes collectively form an outline similar to
that of two equally truncated cones placed with their small ends together, or
of an hour glass. We make the tubes in the outer row of larger diameter and
either vertical or inclined. At or about the level of the bottom of the top box,
we place a baffle plate, or we make the top box itself to form a baffle plate, so
that the flames or heat from the fire box shall pass across the tubes into the
space between the outer case and the tubes and over the top of the top box
to the flue or chimney; or we place the baffle plate below the level of the
bottom box of the top box, so that the flaines or heat may pass to the flue or
chimney across the inclined tubes twice. In the case of a vertical cylindrical
boiler, we place the fire box centrally underneath the tubes. To form a horizontal
boiler, we place a series of two or more such arrangements and combinations of
tubes and boxes as described one behind the other, connected together and.
communicating at top and bottom, and we place the fire box at one end of the
series and enclose the whole in an outer case with baffle plates so arranged
that the flames or heat shall pass across the tubes and return above the top
boxes to the flue or chimney. When the boiler is in action, the tubes are
filled with water which stands above the bottom of the top box, and the circulation
of the water is up the inner inclined tubes and down the larger outer tubes.
The upper part of the top box forms a steam space. In some cases we make the
base of the chimney to project into the outer case below the level of the top of the
top box, so that the flames or heat may surround the top box as much as possible.
Also in some cases to prevent priming and to insure dry steam, we make the pipe
conveying the steam away from the top box to form a coil within the outer case.
and exposed to the flames or heat; or arrange that the steam shall be taken away from
the top box in a pipe to a receiver or separator and thence through a coil within
13

page_text: the outer case. We construct the top box with the upper part, or portions thereof
held to it by bolts or other suitable means, so that such upper part of portions
thereof, can be readily removed as occasions may arise to allow access to the tubes
for mechanically cleaning them, or tightening, or repairing, or renewing them.
The bottom box is constructed in similar manner, so that the lower part of portions
thereof can be readily removed.
Dated this 16th day of August 1895.
FREDERIC PRINCE,
Agent for Applicants.
We GRANVILLE SHARP ULLATHORNE of 63 Queen Victoria Street, in the City
of London, Civil Engineer, and CHARLES EDWIN MONKHOUSE of 38 Parliament
Street, Westminster, Gentleman 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 :-
Our invention relates to improvements in steam generators or boilers of the type
known as water tube or tubulous boilers, with the object that they may be as far
as possible safe from explosion, of light weight, easily constructed, and readily
cleaned, and that steam may be generated in them with exceptional rapidity with a
small consumption of fuel.
Fig. 1. represents on the left hand a vertical section through one half of a vertical
cylindrical boiler made according to our invention, and on the right side au
elevation of such boiler.
Fig. 2. represents a horizontal section of the boiler on the line A B in Fig. 1.
Fig. 3. represents an elevation of one of the inclined water tubes when made to
curved outline.
We construct our boiler with two or more rows of tubes a, b, c, with spaces
between the tubes. The tubes are not horizontal, but are either vertical, or
inclined, and are connected together at each end, that is to say at top and bottom,
by fixing them into a box d of annular or other suitable form at the top, and a
similar box e at the bottom.
Outside the rows of tubes a, b, c, and the boxes d and e, and enclosing them, we
place a case f large enough to leave a space between the case and the tubes and
boxes. We make the tubes b, c in the inner row or rows either straight as shewn
in Fig. 1, or curved as shewn in Fig. 3, and of such shape and connected to the
box d at top and to the box e at bottom in such manner that the tubes are not
vertical, or are vertical only at their ends, but are at an angle with the vertical,
and in the case of a vertical cylindrical boiler as shewn in Fig. 1, having circular
or annular boxes one at top d and one at bottom e, that the tubes b, c, collectively
form an outline similar to that of two truncated cones placed with their smaller
ends together, or of an hour glass. We make the tubes a in the outer row of
larger diameter and either vertical or inclined. At or above the level of the
bottom of the top box d, we place a baffle plate g, or we make the top box itself to
form a baffle plate, so that the flames or heat from the fire box h shall pass across
the tubes c, b. a, into the space between the outer case f and the tubes, and over
the top of the top box d to the flue or chimney k, or we place the baffle plate
below the level of the bottom of the top box d, so that the flames or heat may pass
to the flue or chimney k across the inclined tubes c, b, twice.

page_text: In the case of a vertical cylindrical boiler as shewn in Fig. 1, we place the fire
box centrally underneath the tubes.
To form a horizontal bciler, we place a series of two or more such arrangements
and combinations of tubes and boxes as described, one behind the other, connected
together and communicating at top and bottom, and we place the firebox at one
end of the series, and we enclose the whole in an outer case with baffle plates so.
arranged that the flames or heat shall pass across the tubes and return above the
top boxes to the flue or chimney.
When the boiler is in action the tubes are filled with water which stands above
the bottom of the top box d, and the circulation of the water is up the inner-
inclined tubes b, c, and down the larger outer tubes a. The upper part of the top
box d forms a steam space.
In some cases we make the base of the chimney k to project into the outer case f
below the level of the top of the top box d, as shewn in Fig. 1, so that the flames
or heat
may surround the top box as much as possible. Also in some cases to.
prevent priming and to ensure dry steam, we make the pipe conveying the steam
away from the top box d; to form a superheating coil m within the outer case and
exposed to the flames or heat, or we arrange that the steam shall be taken away
from the top box d in a pipe to a reservoir or separator and thence through a coil.
within the outer case f.
We construct the top box d with the upper part p or a portion thereof, held to
it by bolts or other suitable means, so that such upper part p, or a portion thereof,
can be readily removed as occasion may arise, to allow access to the tubes a, b, c,.
for mechanically cleaning them, or tightening, or repairing, or renewing them..
We construct the bottom box e in similar manner, so that the lower part s, or a
portion thereof, can be easily removed.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we-
claim is:-
1. In a water tube or tubulous steam generator or boiler, the arrangement of
water tubes with spaces between them, fixed into and forming a connection between
annular or other shaped boxes top and bottom in such manner that some of the
tubes are inclined at an angle to the vertical, and collectively form an outline of
two truncated cones placed with their smaller ends together, or of an hour glass,.
substantially as described and set forth in the accompanying drawings.
2. In a water tube or tubulous steam generator or boiler, the combination and
arrangement of top and bottom boxes, inclined water tubes, baffle plate, superheating
coil, and outer casing substantially as described and set forth in the accompanying
drawings.
Dated this Fifteenth day of May 1896.
G. S. ULLATHORNE.
C. E. MONKHOUSE.