Year: 1895

page_text: Date of Application, 6th Aug., 1895-Accepted, 28th Sept., 1895
I, EDWARD JAMES WARMINGTON, of Dengie Rectory, Southminster, in the
County of Essex, England, Clerk in Holy Orders, 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 object of my invention is to form a compound rotary motor in such a manner
that power may be applied from two points in a revolution that is to say, the
exhaust from one cylinder, upon the completion of a revolution, enters another, so
that the pressure of the live and partly exhausted steam are used conjointly to
operate the motor, or live steam can be used at both points it: a revolution.
But in order that my invention may be better understood I will refer to the
accompanying sheet of drawings which are to be taken as part of this Specification
and read therewith
Figure 1, is a cross section of the motor. Figure 2 a sectional elevation,
Figure 3 is an end view of the concentric cylinder
Figures and 5 are fragment detail views, and
Figmes 6 and 7 are alternative arrangements.
Similar letters of reference indicate similar or corresponding parts where they
occur in all the views.
In carrying out the invention, I arrange within a cylindrical casing (A), an
eccentric drum (B), from the ends of which project the shafts (E) and (F) which
are supported by the stuffing box bearings (G) and (G) formed in the covers or
ends of said casing. Within the drum (B) is a cylinder (H) supported upon the
bosses (1) and (I) projected from the interior of said drum. An annular recess (J)
is made in each end of this cylinder (H) in which the bosses rotate, at the same
time allow, both, the drum (B) and cylinder (H) to revolve upon their own axes.
(K) is a rectangular shaped blade one end of which is suitably connected to the
cylinder (H) whilst the other end impinges against the interior surface of the
casing (A) and is retained in this position by the annular rings (L) and (L).
(M) is a steam-tight self-adjusting connection, in drum (Figure 5) through which
the blade (K) slides.
Steam is admitted through the hollow shaft (E) which communicates with the
aperture (N) (Figure 3) leading to the chamber (0) in the cylinder (H), it
passes thence through the port (P) into the drum (B) to act upon said blade (K);
as soon as this blade travels a sufficient distance, consequently taking with it the
cylinder (H) and drum (B), the steam is cut off, so that the blade is forced the
remaining portion of the revolution by the expansion of the steam. An exhaust
port (Q) is made in one end of the drum (B) through which the steam escapes
when it is opposite to a corresponding duct (R) leading into the casing (A) to act
again upon the blade (K). This exhaust from eccentric drum to casing is cut off
in a similar manner to the steam inlet, before described, that is to say, when the
drum (B) has travelled a certain distance. Say when the blade is in the position
shewn in Figure 1, steam is being admitted into the drum to act upon a portion
of the blade, whilst the exhaust from the previous revolution is acting upon the
other portions of blade.
Instead of using the exhaust steam to act upon the blade in the casing, I can
introduce live steam at this point, and allow the exhaust steam to escape.

page_text: And in lieu of making the eccentric drum to carry the working axle, I can
arrange the inner cylinder for that purpose, as illustrated in Figures 6 and 7;
said cylinder connects and revolves with the casing (A) which is supported by the
bearings (S) and (S). The steam and exhaust passages may be arranged as
herein before described.
I do not confine myself to the exact details, and manner as stated, of admitting
the steam into either, the cylinder drum or casing, as this may vary, according to
the construction of the motor.
Further, with a very slight modification in the arrangement of the inlet and
outlet ports, the motor may be driven by water power, and still retain the principle
of my invention.
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. A compound rotary motor constructed in the manner herein set forth,
so that power can be applied at two points in a revolution.
Secondly. In rotary motors, the combination and arrangement of the casing (A)
drum (B) cylinder (H) and blade (K) substantially as and for the purposes
herein described and as illustrated in my drawings.
Dated the 5th day of August 1895.
W. D. ROWLINGSON,
172 Queen Victoria Street, London, E.C., Agent for the Applicant.