Year: 1888

page_text: I, HENRY HARRIS LAKE, of the firm of Haseltine, Lake & Co. Patent Agents
Southampton Buildings in the county of Middlesex do hereby declare the nature of
this invention to be as follows:-
This invention relates to means for utilizing steam and water for obtaining motive
power, and consists in the combination of a water motor with an apparatus which
enables the said motor to be driven by water and steam.
The said apparatus comprises a pipe into which a jet of steam is forced through an
injector tube. With the above mentioned pipe communicates a second pipe in which
are included a ball or other valve, and a cock, and which extends into a water
reservoir so that the steam jet will carry with it the air from the second pipe, and
cause the water to rise through the valve as soon as the cock is opened.
The water thus drawn from the reservoir unites with the steam and the mixture is
caused to pass through the first mentioned pipe to the paddles or vanes of a vertical
This water-wheel completely closes the
water-wheel in order to set it in rotation.
orifice of the passage or channel at the end of the first pipe and makes tight joints at
the sides so that no loss of water occurs. A horizontal water-wheel or other suitable
hydraulic motor can be used in lieu of the vertical water-wheel.

page_text: The useful effect of the engine thus constructed increases with the depth of the
water motor below the injector, and with the height of the water-reservoir. The
number of revolutions of the water-wheel, or the power of the motor, increases with
the velocity of the steam. Forty revolutions per second can be readily obtained.
Dated this 17th day of August 1888.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W. .,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements relating to Means for Utilizing Steam and Water for
Obtaining Motive Power.
I, HENRY HARRIS LAKE, of the firm of Haseltine, Lake & Co., Patent Agents,
Southampton Buildings, in the County of Middlesex, 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:
The principle upon which the operation of the apparatus which forms the subject of
the present application is based, consists in the employment of a jet of steam for
accelerating the velocity of the water designed to act upon a water wheel.
It is evident that the momentum of a body is proportional to its mass and to the
square of its velocity. Now for a fall of six metres the water arrives upon the wheel
with a velocity of fourteen metres six millimetres, and steam at a pressure of one
atmosphere moving at a velocity of about four hundred and twenty four metres, when
acting upon the water necessarily imparts to the latter a much higher velocity than
fourteen metres six millimetres, and consequently augments the power of the motor.
In the accompanying drawings.
Figures 1 and 2 represent in elevation and partial section two installations differing
only in the arrangement and form of the pipes or conduits. In each of these
installations, as shown in Figure 1, a pipe H can be provided for conveying exhaust
steam the velocity of which varies from one hundred and forty three to three hundred
and forty five metres according to the degree of expansion.
The apparatus is composed of a water reservoir A surmounted by a cap or hood B
wherein a valve or cock is arranged. Upon this cap or hood is provided a pipe C in
which terminates the steam pipe D coming from the boiler. In the passage of this
pipe is a cock E. The water and steam pass into the pipe or conduit F in order to
act upon the floats of a water wheel.

page_text: The apparatus can be provided with any governor G as shown in Figure 2.
It should moreover be observed that the reservoir is at a lower level than the pipe D
but the escape of steam into the pipe C produces a vacuum in the cap or hood, and
draws water from the reservoir like an injector. This water passes into the pipe or
conduit F wherein its volocity is accelerated under the action of the steam.
the name of hydropneumatic generator..
Hence
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed as communicated to me by
my foreign correspondent I declare that what I claim is :-
First The improved hydropneumatic power generator, essentially characterized by
the principle upon which it is based as hereinbefore stated.
Second The arrangement of the parts of which the improved generator is composed
as above described and represented in the accompanying drawings.
Dated this 25th day of April 1889.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London,
Agents for the Applicant.