IMPROVEMENTS IN ROTARY STEAM, AIR, OR GAS ENGINES; ROTARY PUMPS; TURBINES AND OTHER WATER MOTORS; WATER METERS BLOWERS, AND THE LIKE
Year: 1884

page_text: I, SAMUEL HARDMAN BERRY, of number 10, Junction Place, Amhurst Road,
Hackney, London, E., in the County of Middlesex, Engineer, do hereby declare the
nature of my invention for "IMPROVEMENTS IN ROTARY STEAM, AIR, OR GAS
ENGINES; ROTARY PUMPS; TURBINES AND OTHER WATER MOTORS; WATER
METERS BLOWERS, AND THE LIKE" and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement and accompanying sheets of Drawings :-
In the improved types of apparatus indicated by the Title of my said Invention,
I adopt a much more simple system of construction than has hitherto been
introduced; the cost of production being likewise thereby materially lessened ;
Whilst at the same time friction is reduced to a minimum and the reliability an
durability of such apparatus as above referred to are also greatly increased.
In rotary engines, pumps; turbines, and other water motors; water meters;
blowers and the like, constructed according to my invention, the piston employed
is of rectangular shape with the ends slightly rounded-and works in a slot formed
in a solid piston cylinder or roller. Said piston cylinder or roller is arranged in
and surrounded by, a cam or eccentric shaped body part or formation of the
apparatus according to my invention, in such a manner as to ensure that the piston
shall have a reciprocatory motion combined at the same time with motion in a
circular direction and also maintaining contact with the surrounding cam or
eccentric shaped body part of the apparatus. By the adoption of this particular
configuration of said last mentioned part, the employment of one piston only, is
rendered necessary, thus avoiding the use of adjusting springs, cams and other
devices usually existing in, and forming integral, indispensable parts of rotary
motors of the ordinary types as hitherto introduced.
The steam on entering the apparatus according to my invention is separated
fr in the exhaust by means of a roller or cylinder capable of revolving in contact
with the piston-cylinder before mentioned, and which first mentine roller or
cylinder is rotated by the friction impart d by the revolution of the piston-
cylinder aforesaid. The supply of steam, air, gas, or fluid-as the case may be―
C
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page_text: entering the apparatus, is regulated by means of the valves and accessories usually
employed for such purpose; these latter forming no part of my said invention.
Said apparatus according to my invention may also be reversed when in motion by
any of the well known and usually employed arrangements of reversing gear.
In the accompanying drawings illustrative of my invention, Figure 1 is a
longitudinal sectional elevation of one of the apparatus according to my invention
arranged as a rotary engine; and, Figure 2, an end view thereof with the cover
removed; the same letters of reference being employed to denote like or corrc-
sponding parts in each. a is the piston-cylinder; b the piston; c the cam or
eccentric shaped surface against and around which the piston b revolves; d is the
divider roller herein before referred to, which revolves on the piston-cylinder a.
e is the inlet port and f the exhaust port, or, vice-versa, as the case may be.
Having now particularly described and ascertained the nature of my said
Invention, and in what manner the same is to be performed, I declare that what
I claim is:
Firstly: In the hereinbefore described types of apparatus, the cam or eccentric
shaped body part c, as and for the purposes herein set forth and described.
Secondly-In the hereinbefore described types of apparatus, the employment of
a single piston formed in one piece, as and for the purposes herein described and
set forth.
Thirdly: In the hereinbefore described types of apparatus, the employment of
the divider roller d, which serves to separate the inlet of the steam, air, gas or fluid
entering the apparatus, from the outlet therefrom, instead of a fixed division or
diaphragm as usually employed; and, by the adoption of which roller d, the
wearing tendency is distributed and equalised over, a much larger area than in the
arrangements for effecting the above object which have hitherto been employed;
whilst I also thereby enabled to reduce friction to a minimum.