Year: 1888

page_text: I WILLIAM WINSHIP WARDLE of No. 32 Somerfield Road Finsbury Park in the
County of Middlesex Engineer do hereby declare the nature of this invention to be as
follows:-
My invention relates to the construction of a rotary engine to be worked by steam
or other fluid under pressure, applicable also when worked by extraneous power, as a
pump, blower or exhauster; the chief object which I have in view being to reduce
the friction and wear of the rubbing parts by so arranging them that there is little.
difference in their relative velocities. On two end trunnions I mount a cylinder free
to revolve and through each of the trunnions I pass, eccentric to it, a tubular shaft,
the one for admission the other for emission of the working fluid. On these shafts I
fix or mount within the cylinder a smaller cylinder of such size that its circumference
touches the inner circumference of the outer cylinder at its one side whilst elsewhere
there is a crescent space between the two cylinders. To the outer cylinder is fixed a
radial blade piston projecting inwards through a slot of the inner cylinder, this slot
being arranged with semi-cylindrical packing pieces that allow the blade to slide and
to angle itself in the slot without allowing fluid to leak past it. From the eccentric
tubular shaft at the one end a passage leads to the crescent space at the one side of
the piston blade and by this passage the working fluid is admitted. By a similar
passage on the other side of the piston blade to the other eccentric tubular shaft the
fluid after performing work is discharged, the effect being that both the outer and
inner cylinders are caused to revolve together the oue on the axis of the trunnions,
the other on the axis of the tubular shafts. In order to prevent leakage at the line
of contact of the two cylinders I provide in the inner cylinder sliding and rocking
packings which are pressed by springs against the inner circumference of the outer
cylinder. The ends of the inner cylinder are also provided with spring packings.
By means of a slide or other valve the passages for admission and emission of the
working fluid may be alternated and thus the engine may be reversed. The fluid
discharged from one cylinder, after performing work therein, may be led to another

page_text: cylinder to expand farther, and thence to a third cylinder, the engines being thus
made to operate as compound engines with double or triple expansion. The outer
cylinder which revolves may itself act as a drum to drive other machinery by a belt,
or it may have teeth gearing with a wheel or pinion. When it is itself driven by
extraneous power, the apparatus can work as a pump blower or exhauster.
Dated this 13th day of March 1888.
ABEL & IMRAY,
Agents for the Applicant.
COMPLETE SPECIFICATION.
A Rotary Engine, Applicable also as a Pump Blower or Exhauster.
I, WILLIAM WINSHIP WARDLE, of No. 32 Somerfield Road, Finsbury Park, in the
County of Middlesex Engineer, 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 :-
My invention relates to the construction of a rotary engine to be worked by steam 1
or other fluid under pressure, applicable also, when worked by extraneous power, as a
pump, blower or exhauster; the chief object which I have in view being to reduce
the friction and wear of the rubbing parts by so arranging them that there is little
difference in their relative velocities. On two end bearings I mount a cylinder free
to revolve and through the cylinder I pass, eccentric to it a tubular shaft, the one 2
bearing has a passage for admission the other for emission of the working fluid. On
the eccentric shaft mount within the cylinder a smaller cylinder of such size that its
circumference touches the inner circumference of the outer cylinder at its one side
whilst elsewhere there is a crescent space between the two cylinders. To the outer
cylinder is fixed a radial blade piston projecting inwards through a slot of the inner 2
cylinder, this slot being arranged with semi-cylindrical packing pieces that allow the
blade to slide and to angle itself in the slot without allowing fluid to leak past it.
From the bearing at the one end a passage leads to the crescent space at the one sido
of the piston blade and by this passage the working fluid is admitted. By a similar
passage on the other side of the piston blade to the other bearing the fluid after 3
performing work is discharged, the effect being that both the outer and inner
cylinders are caused to revolve together, the one on the axis of the bearings, the
other on the axis of the tubular shaft. In order to prevent leakage at the line of
contact of the two cylinders I provide in the outer cylinder rocking packings which
press against the outer circumference of the inner cylinder. The ends of the inner 3

page_text: cylinder are also provided with spring packings. By means of a slide or other
valve the passages for admission and emission of the working fluid may be alternated
and thus the engine may be reversed. The fluid discharged from one cylinder, after
performing work therein, may be led to another cylinder to expand farther, and thence
to a third cylinder, the engines being thus made to operate as compound engines with
double or triple expansion. The outer cylinder which revolves may itself act as a
drum to drive other machinery by a belt, or it may have teeth gearing with a wheel
or pinion. When it is itself driven by extraneous power, the apparatus can work as
a pump blower or exhauster.
Fig. 1 of the accompanying drawings is a transverse section and Fig. 2 a
longitudinal section of a rotary engino according to my invention. A is the outer
cylinder which can revolve on the axis a. B is the inner cylinder which can revolve
on a core operating as an eccentric shaft turning with the cylinder A. The piston C
attached to A is free to slide outwards and inwards between two semi-cylindrical
packing pieces c c which are free to rock in a recess of B. Steam supplied at D to
the annular space surrounding the axis flows by the passage d to a mouth E opening
into the space between A and B behind the piston C, and by a similar course, exhaust
passes from a mouth F in front of C by a passage g to the discharge G. The
passage d has a port at d' of limited circumferential extent so as to effect cut off at
some predetermined part of the revolution. In order to prevent leakage where B
touches A as at HI pivot in recesses of A soveral packing blocks K which can cant on
their pivots accommodating themselves to the surface of the inner cylinder B.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, I declare that what
I claim is :-
A rotary engine, applicable also a pump blower or exhauster, constructed and
operating substantially as described with reference to the accompanying drawings.
Dated this 13th day of December 1888.
ABEL & IMRAY,
Agents for the Applicant.