IMPROVEMENTS IN AND RELATING TO PORTABLE STEAM ENGINES AND BOILERS
Year: 1880

page_text: LETTERS PATENT to William Robert Lake, of the Firm of Haseltine, Lake,
& Co., Patent Agents, Southampton Buildings, London, for an Invention of
IMPROVEMENTS IN AND RELATING TO PORTABLE STEAM ENGINES AND
BOILERS." A communication from abroad by Guglielmo Janssen, of Milan,
Italy. Engineer.
"
PROVISIONAL SPECIFICATION left by the said William Robert Lake at the
Office of the Commissioners of Patents on the 28th January 1880.
WILLIAM ROBERT LAKE, of the Firm of Haseltine, Lake, & Co., Patent
"IMPROVEMENTS IN AND RELATING TO
Agents, Southampton Buildings, London.
PORTABLE STEAM ENGINES AND BOILERS." [A communication from abroad by
Guglielmo Janssen, of Milan, Italy, Engineer.]
This Invention relates to portable steam engines and boilers, and is chiefly:
designed to provide improved means for rendering a vertical steam-boiler portable
or capable of being readily moved from place to place.
In carrying the said Invention into practice I provide an iron tube which is
rivetted in a horizontal position, or in any suitable manner fixed to the vertical
steam boiler.
This tube has no communication with the interior of the boiler, and serves merely
as a support or attachment to which the engine and the movable wheel-frame or
fore carriage on which the pole or shaft is fixed are attached.
The transverse section of the tube is preferably circular, but may be of another
form, such as oval or square. The inner space of this tube may if desired be used
for any suitable purpose; for instance, as a heater for the feed-water or as a water-
reservoir, or such like.
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By this arrangement the perfect stability of the boiler or boiler and engine is
obtained, and the tilting over frequently occuring with vertical steam engines of
the ordinary construction is rendered impossible.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said William Robert Lake in the Great Seal Patent Office on the
27th July 1880.
WILLIAM ROBERT LAKE, of the Firm of Haseltine, Lake, & Co., Patent Agents,
Southampton Buildings, London. "IMPROVEMENTS IN AND RELATING TO PORTABLE
STEAM ENGINES AND BOILERS." A communication from abroad by Guglielmo
Janssen, of Milan, Italy, Engineer.
This Invention relates to portable steam engines and boilers, and is designed to
afford means for conveniently adapting a vertical steam-boiler to be mounted on
wheels with or without an engine.
The said Invention is illustrated in the accompanying Drawing, in which,―
Figure 1 is a side elevation shewing the said Invention adapted to the construction
of a portable engine, and
Figure 2 is a plan partly in horizontal section of the same.
In carrying the said Invention into practice, I construct a vertical steam boiler or
generator a in any suitable manner, and I rivet or otherwise fix thereon an iron
tube b which is arranged horizontally as shewn, or at any desired angle to the
vertical steam-boiler a.
This tube b has no communication with the interior of the boiler or generator,
that is to say, it is entirely independent of the said generator as far as concerns the
interior space thereof, and it serves merely as an extension on which the engine
is mounted, and to which the movable wheel-frame or fore-carriage with the pole
or shaft is attached.
The said tube b is preferably circular in transverse section, but may be of any
other suitable form, such as oval or square. The inner space of this tube may
be used for any purpose; for instance, as a heater for the feed-water or as a water-
reservoir.
By this Invention I ensure great stability of the boiler when used either with or
without the engine mounted thereon, the tilting or turning over frequently
occurring with vertical steam-engines of the ordinary construction being rendered:
practically impossible.
Having thus fully described the said Invention as communicated to me by my
foreign correspondent, and the manner of performing the same, I wish it under-
stood that I claim,―
Adapting a vertical steam boiler or generator to be mounted on wheels, so that
it may be utilized for a portable engine or otherwise, by rivetting or fixing in any
suitable manner on the same a tube which is unconnected with the interior of the
boiler, and whose inner space may be used for any purpose, and which tube serves
to support the steam-engine, and for the attachment of the front wheel-frame or fore-
carriage, all substantially as and for the purposes specified.
In witness whereof, I, the said William Robert Lake, have hereunto set my
hand and seal, this Twenty seventh day of July, in the year of our Lord
One thousand eight hundred and eighty.
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