IMPROVEMENTS IN STEAM-BOILERS
Year: 1882

page_text: LETTERS PATENT to Raphael Hunter Brandon, of No. 1, Rue Laffitte, Paris, in
the Republic of France, Engineer and Patent Agent, for an Invention of
"IMPROVEMENTS IN STEAM-BOILERS."-A communication by Conrad Gamper,
Engineer, of Sielce, near Sosnowice, in the Empire of Russia.
COMPLETE SPECIFICATION filed by the said Raphael Hunter Brandon at
the Office of the Commissioners of Patents on the 12th April 1882.
RAPHAEL HUNTER BRANDON of No 1 rue Laffitte Paris in the Republic of
France, engineer and patent agent "IMPROVEMENTS IN STEAM BOILERS
A com-
munication by Conrad Gamper, engineer of Sielce near Sosnowice, in the Empire
of Russia
The object of this invention is the construction of a boiler capable of producing
very rapidly high pressure steam by means of a much larger heating surface
relatively to its volume and weight, than in any other steam boilers hitherto
constructed.
In the annexed drawing Fig: 1 is a longitudinal elevation in section, fig: 2 a
front elevation in section, fig: 3 an end-view in section of the rear of a boiler in
its setting constructed in accordance with my said improvements and fig. + a
sectional view of a detail of its construction on a larger scale. As it will be seen,
it contains a group of six welded sheet iron tubes a, connected by upright tubes b. b.
as well as with the boiler c situated above, by means of the tubes d. d. d; thus the
whole system as shewn, forms a boiler with its setting. As aforesaid both the
front plates of the tubes a, as well as their jackets are welded, & the tubes e, as
clearly shewn in Fig. 4 are inserted in the same steamtight, so that the tightness
in the front ends is effected by means of two ground cones, which are adjusted by
the nuts situated at the back for the purpose of securing perfectly tight joints.
It is to be understood that the rear cones are smaller in diameter than the front
ones so that they can be passed through the opening of the latter. To facilitate
the insertion and removal of fire tubes e, each tube a carries a special supporting
roller g fig: 4, so that the tube when taken out of its position in the cones is
supported and carried, whilst being moved in or out. h is a feed water heater
placed in the chimney-flue and connected with the vertical tube i, in which the
feed water is forced at g, whilst the mud contained in the water is precipitated
below, from whence it is carried off through r. Then the feed water heated in
this manner is conducted through the pipes k. k. in the lower part of the boiler.
is a man-hole placed on the upper part of the boiler and its upright tube p is

page_text: set so as to be surrounded by hot gasses, produced by the combustion. The grate
surface is marked m. The intermediato space between the lower parts a of the
boiler, as regards their respective positions is such that the small flames pass
between the lower tubes in the direction of the arrows around the outer periphery
of the same, hence rising and moving over the fire bridge n, and descending, from
thence they pass backwards through the tight fire tubes o, from which the hot
gasses rise and surround the upper part e of the boiler and pass off to the flue,
where the heater is placed, causing thus a rapid and complete utilisation of the hot
gasses. The lower tubes a of the boiler, are further made so that inner periphery
of the jacket is about 100% from the outer periphery of the Gre-tube, causing
thus an exceedingly rapid evaporation of the water in circulation. The steam
produced rises readily through the said connecting tubes. From the foregoing it
is evident that the production of steam inust be rapid on account of the contact of
small quantities of water with a very large heating surface, which amall quantity
of water is however considerable, compared to that contained in the so-called
inexplosible boiler and renewed continually during the evaporation, whilst the
upper part c of the boiler is sufficiently capacious to receive the steam as fast as
it is generated. o and
in Fig: 1 are cast iron doors, which are readily opened
for the purpose of cleaning the lower parts of the boiler, in which case the nuts f
being unscrewed, the tire tubes o can be taken out for removing any incrustation,
and the cleaning of the lower parts of the boiler can be effected at the same time.
The inventor reserves himself the right to connect any number of the lowar
boilers into a battery or series, in the way as shewn or in any other appropriate
manner for the purposes stated and of conducting the steam from the lower parts
of the boiler, by means of modified parts, to the upper parts of the boiler and in
the place of the nuts ff. the use of any other appropriato analogous mechanism
can be substituted for drawing the other extremities of the tubes tight up in their
places. An other advantage to be mentioned is that the tubes b. b. aud d. d can
he Hanged and bolted in order to facilitate their removal and transport over
difficult roads. Should one of the tubes be damaged, it is easy to remove thio
sume and to replace it by a new one without a delay of any consequence. The
said construction of boilers is less liable to explode than any other system in use
prior to this invention.
What I claim is:
1. The combination of two or more tubes a carrying internally the concentric
fire tubes e, which can be easily removed for the purpose of removing scale or
incrustation; with nu upper boiler c, of any size and form, for the purposes of
producing high pressure steam, with a relatively large heating surface in
proportion to the volume and weight of the boiler.
2 The combination of the lower tubes a and the fire tubes c, as aforesaid and
shown in the drawing annexed, fastened together without rivets, for the purposes
Bet forth.
3. The combination of the heater h, with the vertical tube for the purposes
sot forth.
In witness whereof, I the said Raphael Hunter Brandon, have hereunto
land and want this touth
Witnesses:
Philipp Sauer.
R. H. BRANDON. (LS.)