IM- PROVEMENTS IN THE MEANS OF PRODUCING MOTIVE POWER AND IN THE APPARATUS CONNECTED THEREWITH
Year: 1869

page_text: PROVISIONAL SPECIFICATION left by Clinton Edgcumbe Brooman at
the Office of the Commissioners of Patents, with his Petition, on
the 14th April 1869.-A communication from abroad by Eugene
Frederic Alexandre Goguel, of St. Etienne, France.
I, CLINTON EDGCUMBE BROOMAN, of the Firm of Robertson, Brooman,
and Company, of 166, Fleet Street, in the City of London, Patent
Agents, do hereby declare the nature of the said Invention for "IM-
PROVEMENTS IN THE MEANS OF PRODUCING MOTIVE POWER AND IN THE APPARATUS
CONNECTED THEREWITH," to be as follows:-
This Invention consists in the use of a current of steam and air
combined in order to constitute a motive power, a propeller, and
injector.
The first application of the Invention relates to a new prime mover
with a continuous rotation fed by a current of steam and air combined,
and the characteristic feature of the Invention consists in making use
of the expansive force of steam in order to attract a certain quantity
of atmospheric air so as to make them both act simultaneously upon the
parts of the prime mover, and to impart to it their force.

page_text: In order to more clearly show the novel employment of steam and air
combined as a motive power I will proceed to describe, with reference to
the Drawings hereunto annexed, its application to a water or Barker's
wheel.
A, Figure 1, is the water wheel; B is a pipe projecting a jet of steam
into the stem of the wheel; m, m, are arrows, showing the direction
taken by the air drawn by the jet of steam from the tube B; C is vessel
or chamber of metal or other material hermetically closed in which
turns the water wheel; G, G¹, are openings provided with valves for the
expulsion of the water of condensation from the vessel C. If it is found
convenient to immerse the arms of the wheel during its revolution the
valve of the tube G is opened, and that of the tube G is to be closed.
When, on the contrary, it is desired that the arms should work above the
water, and only in compressed air, the valve of G¹ is opened while that
of G is closed. E is a valvular opening for the escape of the more or
less compressed air always concentrating within the vessel C; H is the
partition closing the vessel C at the top; it may be pierced with holes
for the introduction of cold water into the vessel C in order to condense
the steam.
The working of the apparatus is as follows:-The jet of steam of
whatever pressure draws with it by induction a certain quantity of atmo-
spheric air into the stem of the wheel, which together produce a rotating
movement by reaction on their egress from the ends of the rotating
arms. The rotating arms of the wheel may turn either in water or
compressed air. In every case the compressed air, which has a high
temperature, can be conducted by hermetically closed tubes applied to
the escape opening E into all kinds of fires which this compressed air
may feed, or into any other place, such as workshops and other rooms,
either for the purposes of ventilation or heating. The jet of steam pro-
ceeding from the tube B may be either at the temperature at which
it leaves the generators, or it may be superheated. The air which is
drawn by the steam into the wheel may also either be of the ordinary
temperature of the atmosphere or at a higher temperature communicated
to it before being attracted by a fire or other heating apparatus. This jet
of steam and air combined may also be applied to all kinds of turbines,
where it will act in the same manner as water. The power transmitted
to the prime mover will be greater if the two moving agents, the steam
and air, are superheated to a high degree. If instead of producing a

page_text: motive force by a rotating movement the jet of steam is sent into a fixed
tube a very simple, effective, and economical means of propulsion for
navigating purposes by the combined steam and air is obtained, which
acts directly by reaction upon the water which bears the vessels. It
will be perceived that this is a very economical and efficacious means
of feeding a forced jet of mixed steam and air and one very suitable to
the Bessemer process, instead of only feeding the latter with highly
compressed air at great expense by powerful steam-blowing machines
as at present done.