IMPROVE- MENTS IN STEAM BOILERS AND GENERATORS."
Year: 1861

page_text: LETTERS PATENT to John Anthony, of 10, Oxford Terrace, Poplar,
in the County of Middlesex, Engineer, for the Invention of "IMPROVE-
MENTS IN STEAM BOILERS AND GENERATORS."
PROVISIONAL SPECIFICATION left by the said John Anthony at the Office of
the Commissioners of Patents, with his Petition, on the 10th September
1861.
I, JOHN ANTHONY, of 10, Oxford Terrace, Poplar, in the County of Mid-
dlesex, Engineer, do hereby declare the nature of the said Invention for
"IMPROVEMENTS IN STEAM BOILERS AND GENERATORS," to be as follows:-
This Invention consists in carrying or continuing the fire and smoke boxes
and flues or tubes of steam boilers to the top or very near the top of the
inside of the boiler shell, or to any other position which may be found necessary,
and in dividing the whole body of the tubes or flues into two, three, or more
sections or nests of flues or tubes, these divisions to be caused or formed by
the placing or fixing of dampers or water spaces in or across the fire or smoke
boxes, so that the flame and hot air from the furnaces may be caused thereby
to pass through a portion only or one section or nest of flues or tubes at the
same time, and to successively pass from back to front of boiler, and vice
versa, or from side to side, until the whole of the flues or tubes in all the

page_text: sections or nests have been traversed, and thence into the uptake or chimney
in the usual way. The flues or tubes to be of the same size and number in
cach section or nest, or increased or diminished as the case may be to suit
the calorimeter of the samo to the requirements of the boiler or generator.
One or more or a portion of one or more of the sections or nests of flucs or
tubes to be used as superheaters by passing through the steam space of
the boiler, the number of which to be used as such to be determined by
the temperature of the steam passing from the boiler to the engine or
in the boiler or steam pipes respectively. The immersion and emersion
of the flues or tubes to be effected by changing the water level of the
boiler as necessary or at pleasure by the ordinary means of feeding, or by any
other and such means as may be found necessary or expedient.
SPECIFICATION filed in pursuance of the conditions of the Letters Patent,
and of an Order of the Lord Chancellor, by the said John Anthony
in the Great Seal Patent Office on the 2nd April 1862.
1
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN
ANTHONY of 10, Oxford Terrace, Poplar, in the County of Middlesex, Engineer,
send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing, date the Tenth day of September, in the year of our Lord
One thousand eight hundred and sixty-one, in the twenty-fifth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me,
the said John Anthony, Her special licence that I, the said John Anthony,
iny executors, administrators, and assigus, or such others as 1, the said
John Anthony, my executors, administrators, and assigns, should at any
time agree with, and no others, from time to time and at all times thereafter
during the term therein expressed, should and lawfully might make, use,
exercise, and vend, within the United Kingdom of Great Britain and Ireland,
the Channel Islands, and Isle of Man, an Invention for "IMPROVEMENTS
IN STEAM BOILERS AND GENERATORS," upon the condition (amongst others)
that I, the said John Anthony, my exccutors or administrators, by an
instrument in writing under my, or their, or one of their hands and
seals, should particularly describe and ascertain the nature of the said
Invention, and in what manner the same was to be performed, and cause the
samo to bo filed in the Great Seal Patent Office within six calendar months
next and immediately after the date of the said Letters Patent.

page_text: '
NOW KNOW YE, that I, the said John Anthony, do hereby declare
the nature of my said Invention, and in what manner the same is to
be performed, to be particularly described and ascertained in and by the
following statement, reference being had to the accompanying Drawings (that
is to say):-
This Invention consists in carrying or continuing the fire and smoke boxes,
and flues or tubes of steam boilers, to the top or very near the top of the
inside of boiler or shell, or to any other 'position which may be found neces-
sary, and in dividing the whole body of the flues or tubes into two, three,
or more sections or nests of flues or tubes, these divisons to be caused or
formed by the placing or fixing of dampers or water spaces in or across
the fire or smoke boxes; so that the flame and hot air from the furnaces
may be caused thereby to pass through a portion only or one section or
nest of flues or tubes at the same time, and to successively pass from back
to front of boiler, and vice versa, or from side to side, until the whole of the
flues or tubes in all the sections or nests have been traversed, and thence into
the uptake or chimney in the usual way. The flues or tubes to be of the same
size and number in each section or nest, or increased or diminished, as the case
may be, to suit the calorimeter of the same to the requirements of the boiler
or generator. One or more, or a portion of one or more of the sections or
nests of flues or tubes to be used, as superheaters by passing through the
steam space of the. boiler, the number of which to be used as such to be
determined by the temperature of the steam passing from the boiler to
the engine or in the boiler or steam pipes respectively. The inmersion
and emersion of the flues or tubes to be effected by changing the water
level of the boiler as necessary or at pleasure by the ordinary means.
of feeding, or by any other and such means as may be found necessary or
expedient:
DESCRIPTION OF THE DRAWINGS.
, Fig. 1, Sheet 1, is the front view of a boiler, fitted with superheating tubes
according to my Invention, one half of which is a plain elevation, and the
other half a section through C, D, of Fig. 2, shewing front ends of tubes in
smoke box, the four upper rows of which are the superheating tubes and
standing above the water line E. Fig. 2 of same Sheet is a section of the

page_text: atmosphere admitted through the door G, passes from front to back of boiler
through the upper and second nest of tubes; some of which pass through the
water and the upper ones through the steam space, thereby superheating the
steam rising between them from the surface of the water, and preventing
priming by converting the rising water into steam; the proportion of the upper
nest of tubes to be used for superheating to be indicated by the temperature
of the steam passing into the engines. Suppose, for instance, that the working
temperature is fixed at 320° Fahrenheit, and that after working the engines
for some time with four rows of tubes uncovered for superheating, the thermo-
meter in the steam pipes indicates only 280°, the feed cocks should be
closed until ovaporation in the boiler has reduced the level of the water in the
boiler to the fifth row of tubes, or until the desired rise of temperature is
indicated, or, on the other hand, with the samo number of tubes superheating
the thermometer, shews a temperature in the steam pipe of any number of
degrees above 320, then by increasing the supply of feed water, a portion of
the uncovered tubes would be gradually submerged, and the temperature of
the steam lowered or reduced in proportion until the working temperature is
attained and indicated. Fig. 1, Slieet 2, shews two transverse vertical sections,
one of which A, B, is through E, F, in Fig. 2, and the other C, D, is through
G, H, in Fig. 2; Fig. 2 of this Sheet is a longitudinal, vertical-section,
through the centre of one of the furnaces. In this boiler the tubes are shewn
divided into three sections or nests. The flamo and hot air from the furnaces
being intercepted by the water space I, passes forward through the lower nest
of tubes to the smoke box, where, mixing with the air admitted through the
door J, and thereby becoming incalescent, rises through the smoke box, and
passing backwards through the second nest of tubes into the chamber or upper
fire box K, is again turned to the front through the upper or third nest of
tubes, the upper rows of which, as in the Figs. of Sheet 1, are the super-
heating medium; the letters I and I' in both Figs., indicate openings or
manholes for the purpose of communicating with the chamber K when
necessary, and to be closed when the boiler is at work; I' to be fitted with a
damper to be kept close when working, but
check the passage of
the hot air into the middle and upper nests
when the engines are
not at work, the temperature of the superheated steam and the working level
of the water in the boiler to be governed and increased or diminished in
the way already described in the description given of Figs. 1 and 2 in
Sheet 1.
opened to
of tubes;
Having now described my said Invention, and illustrated its application
to the form of boilers shewn in the accompanying Drawings, be it under-

page_text: stood, that although I have selected these forms of steam boilers for
illustration, it is applicable to all forms of steam boilers and generators, and
I claim,-
Firstly, the extension of tubes into the steam space of steam boilers and
generators for the purpose of superheating.
Secondly, the method herein-before described for regulating the tempe-
rature of the superheated steam and the feed level of the boiler.
Thirdly, the arrangements of the tubes or flues in sections or nests in
combination with the other arrangements shewn in the accompanying Drawings
and described in the foregoing Specification.
In witness whereof, I, the said John Anthony, have hereunto set my
hand and seal, this Tenth day of March, in the year of our Lord One
thousand eight hundred and sixty-two.
JOHN ANTHONY. (L.8.)