An Improved Rotary Engine.
Year: 1894

page_text: Application, 27th Nov., 1891-Accepted, 2nd Feb., 1895
An Improved Rotary Engine.
We, Dr. FRANTISEK KADLČIK, Sugar Manufacturer, of Cerekvic near
Litomomyšl, FRANTISEK JUPPA, Joiner of 237 Budánka, Prague-Smichov, and
JAROSLAV JUPPA, Engineman, 804 Kladno, all in the Austro-Hungarian Empire,
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 :-
This invention relates to an improved construction of rotary steam or other fluid
pressure engine.
Under our invention the steam or other fluid passes through the piston into the
casing.
And in order that our said invention may be properly understood we have
hereunto appended an explanatory sheet of drawings, whereon,
Fig. 1 is a view showing the machine as it appears when the cover plate is
taken off.
Fig. 2 is a view of the cover plate.
Fig. 3 is a part sectional end view of the machine.
Figs. 4, 5 and 6 are detail views.
In our invention the rotary piston K is mounted on a shaft H which passes
through the casing U somewhat out of the centre in order that the piston K may
at its upper side bear steam tight against the part M of the casing.
The cover
plates V, V (Fig. 3) which are secured in place by bolts a passed through the
lugs n are so arranged as to enclose the sides of the piston K perfectly steam tight.
The flaps L', L, L³, L' are hinged to the periphery of the piston as shown at
Fig. 1.
The piston K is made with radial passages 01, 02, 03, 0₁ the outer ends of which
are capable of being at certain times closed by the flaps L', L³, L³, L.
The arrangement is such that the live steam or other fluid which gains admittance
at P (Fig. 3) passes by the passage O in the bearing N of the cover through these
radial passages successively. The passage o communicates with a short curved
groove D (see Fig. 2 and dotted lines Figs. 1 and 3).
In the position shown at Fig. 1 the steam as soon as it enters the groove D (see
dotted lines) can only pass into the passage 04 and from thence to the casing U
where it expands and presses against the Hap L pushing it along with the piston
in the direction of the arrow S.
As soon as the orifice of the passage O, by the rotation of the piston, moves out
of contact with the groove D the steam is cut off from it and is, as the orifice of the
passage o¹ is now in contact with the groove, supplied to the passage o¹ and presses
on the underside of the flap L' forcing it up tight against the interior of the
casing U. The arrangement is such that just at the time when live steam is cut off
from the passage 01 and is being supplied to the passage o¹ the flap L' is just
passing the part M. As the piston continues to rotate the steam from the passage o¹
escapes into the casing U thereby pressing on the flap L' and giving an additional
impulse to the machine. The action is repeated in the case of the passages 0, 0³,
and flaps L, L³ a fresh impulse being imparted to the machine as each flap passes
by the part M. In this manner the rotary motion of the machine is maintained.
W is the exhaust outlet

page_text: In order to utilize as much as possible the expansive force of th
can be compounded as shown at Fig. 3. In this case the two pi
to drive a common shaft H having a pulley R thereon. The ext
the engine at the left hand side passes out by the passage M' (Fig
pipe P¹ to the low pressure engine at the right hand side finally esc
outlet W.
The flaps as soon as they pass the place (Fig. 1) in the casing
their own gravity into the recesses in the piston.
may be itted in the
In the event of the flaps not closing down against the piston wi
rapidity during the rotation of the piston a buffer spring
casing, near M, for the purpose of mitigating the shocks.
In order to render the flaps L steam tight, packing pieces S are fitted in them at
each side as shown at Figs. 4 and 5 in side, plan, and sectional views and are held
tight against the ground working faces of the cover plates V, V1, by means of three
or more springs p.
Fig. 6 is a part section of the piston Fig. 1 on the line -¹.
The compound engine Fig. 3 is bolted to a foundation A.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, we declare that what we
consider novel and desire to claim is :
1. A rotary engine in which the live fluid is supplied by means of passages such
as O, D, in succession to a series of radial ports or passages in the piston so as to
impart successive impulses to a series of flaps hinged to the piston, substantially as
herein before described with reference to the drawings annexed.
2. The construction of compound rotary engine substantially as herein before
described with reference to the drawings annexed.
3. The construction of hinged flaps L' to L with their packing strips S and
springs p substantially as herein before described and shown and for the purpose
set forth.
Dated this 26th day of November 1894.
H. D. FITZPATRICK,
70, Wellington Street, Glasgow, Agent.