improvements in Rotary ins
Year: 1897

page_text: Date of Application, 19th May, 1897
Complete Specification Left, 21st Feb., 1898-Accepted, 2nd Apr., 1898
improvements in Rotary ins
I, NICHOLAS MAIEVSKI, of Briansk Mechanical Works, Ekaterinoslaw, in the
Empire of Russia, do hereby declare the nature of this invention to be as
follows:-
-
This invention has for its object a compound steam engine the construction of
which is shown in the annexed drawings.
Figure 1 being a longitudinal section of the engine, Figure 2 a transverse
section (through the centre of the cylinders.)
Figure 3 a transverse section to a larger scale of the distributing valve. Figure 4
an elevation of the valve face and Figure 5 a section of the valve on the line 5-5
Figure 3.
The engine consists of four or other equal number of cylinders F arranged
in pairs at the ends of the same diameters one of the cylinders of each pair being
the high pressure cylinder and the other the low pressure cylinder as shown in
Figure 2. The axes of the cylinders F are all tangential to a circle concentric
with their axis of rotation, (Figure 2). In each cylinder there is a piston g; the
to and fro movement of the pistons g is produced, when the engine is in motion,
by the pressure of the steam which passes into the space between the bottom of
each cylinder and its piston.
Each piston is pivotted to an oscillating connecting rod m the opposite end of
which is pivotted to a bolt y. The bolts y are fixed upon a fly wheel B keyed
upon a hollow shaft H¹ supported by a block L. This latter is provided with a
boss t projecting into a corresponding recess in the fly wheel B, which lessens the
flexion moment of the shaft. Upon the same shaft H' a transmitting pulley R¹
is keyed.
The cylinders F are keyed upon another hollow shaft H supported by a block L'.
This shaft H is at a lower level than the shaft H¹ that is to say arranged eccen-
trically to it.
Steam is led into the machine by the pipe S and enters between a hollow
block from whence it is directed by the outer pipe o into the distributing
chamber K. Steam is distributed into the cylinders F by the fixed valve P shown
in Figures 3 and 5.
An
The outlet steam is directed by the recess in the valve P into the inner pipe o
and passes out through the pipe S¹ into the atmosphere or into a condenser.
arm Z is fixed upon the pipe o, the other end of which arm is fixed to the block Q
which renders the pipe o and consequently the slide P fixed. By rotating the
arm Z with the pipe o and the slide P to 180° the engine will be reversed. The
end of the pipe o is provided with a piston e balancing the valve P.
In the free space between the outer pipe o¹ and the hollow of the shaft H the
air is in circulation and cools this shaft.
Upon the shaft H a pulley R is mounted to which a centrifugal governor n n
is attached. This governor displaces a ring f along the shaft H and in this way
acts upon the steam valve by means of the ends of the levers 7.

page_text: The cylinders F are for greater safety surrounded by a steel ring c.
The cylinders are jointed to the fly wheel B by means of connecting rods k
(Figures 1 and 2) rotating through 360° at each rotation of the engine. The
whole engine is supported upon a bed plate A A.
For distributing the steam I employ an arrangement of ports i and for the
inlet of the steam as is shown in Figure 4 and a valve P Figures 3 and 5 which
leads the steam passing out of each small cylinder into the corresponding large
cylinder and the steam passing out of this latter to the atmosphere by the pipe o.
In this manner the machine acts as a compound engine.
The construction of the slide P is such that the fresh steam enters by one of the
ports into the small cylinder and at the same time the outlet steam by the
large cylinder passes by the port into the pipe o Figure 3. After half a
rotation of the engine the port i comes below and the port it above and in this
position the steam passing out of the small cylinder is led by the chamber v₁ of
the slide valve into the large cylinder and so on.
The principal advantages of this engine are: a rapid and silent motion;
reduction in weight (about 10 kilograms per one horse power) and in friction.
Dated this 10th day of May 1807
a
CARPMAEL & Co.,
Agents for the Applicant.
ацртоустение in novary gnes.
I, NICHOLAS MAIEVSKI, of Briansk Mechanical Works, Ekaterinoslaw, in the
Empire of Russia, 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 has for its object a compound steam engine the construction of
which is shown in the annexed drawings.
Figure 1 of the drawings left with the Provisional Specification being a longi-
tudinal section of the engine, Figure 2 a transverse section (through the centre of
the cylinders.)
Figure 3 a transverse section to a larger scale of the distributing valve. Figure 4
an elevation of the valve face and Figure 5 a section of the valve on the line 5, 5,
Figure 3.
The engine consists of four or other equal number of cylinders F arranged
in pairs at the ends of the same diameters one of the cylinders of each pair being
the high pressure cylinder and the other the low pressure cylinder as shown in
Figure 2. The axes of the cylinders F are all tangential to a circle concentric
with their axis of rotation, (Figure 2). In each cylinder there is a piston g; the
to and fro movement of the pistons g is produced, when the engine is in motion,
by the pressure of the steam which passes into the space between the bottom of
each cylinder and its piston.
Each piston is pivotted to an oscillating connecting rod m the opposite end of
which is pivotted to a bolt y. The bolts y are fixed upon a fly wheel B keyed
upon a hollow shaft H¹ supported by a block L. This latter is provided with a
boss t projecting into a corresponding recess in the fly wheel B, which lessens the
flexion moment of the shaft. Upon the same shaft a transmitting pulley R¹
is keyed.
The cylinders F are keyed upon another hollow shaft H supported by a block L'.

page_text: This shaft H is at a lower level than the shaft H that is to say arranged eccen-
trically to it.
Steam is led into the machine by the pipe S and enters between a hollow
block Q from whence it is directed by the outer pipe o¹ into the distributing
chamber K. Steam is distributed into the cylinders F by the fixed valve P shown
in Figures 3 and 5.
An
The outlet steam is directed by the recess in the valve P into the inner pipe o
and passes out through the pipe S' into the atmosphere or into a condenser.
arm Z is fixed upon the pipe o, the other end of which arm is fixed to the block Q
which renders the pipe o and consequently the slide P fixed. By rotating the
arm Z with the pipe o and the slide 1 to 180° the engine will be reversed. The
end of the pipe o is provided with a piston e balancing the valve P.
In the free space between the outer pipe o' and the hollow of the shaft H the
air is in circulation and cools this shaft.
Upon the shaft H a pulley R is mounted to which a centrifugal governor n n
is attached. This governor displaces a ring f along the shaft H and in this way
acts upon the steam valve by means of the ends of the levers 7.
The cylinders F are for greater safety surrounded by a steel ring c.
The cylinders are jointed to the fly wheel 13 by means of connecting rods k
(Figures 1 and 2) rotating through 360° at each rotation of the engine. The
whole engine is supported upon a bed plate A A.
For distributing the steam I employ an arrangement of ports i and for the
inlet of the steam as is shown in Figure 4 and a valve P Figures 3 and 5 which
leads the steam passing out of each small cylinder into the corresponding large
cylinder and the steam passing out of this latter to the atmosphere by the pipe o.
In this manner the machine acts as a compound engine.
The construction of the slide P is such that the fresh steam enters by one of the
ports into the small cylinder and at the same time the outlet steam by the
large cylinder passes by the port into the pipe o Figure 3. After half a
rotation of the engine the port i comes below and the port i¹ above and in this
position the steam passing out of the small cylinder is led by the chamber v¹ of
the slide valve into the large cylinder and so on.
The principal advantages of this engine are: a rapid and silent motion, a
reduction in weight (about 10 kilograms per one horse power) and in friction.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is:-
1. The special arrangement of the cylinders F tangentially to a circumference
concentric to the axis of rotation which avoids pressure on that axis and conse-
quently considerably reduces the friction.
2. The pistons rotating with the cylinders around the same centre.
3. The special construction of the distributing valve formed of a hollow disc
with double walls fixed at the end of the steam outlet pipe and free to be turned
through 180° to reverse the engine.
4. Compounding the engine by arranging high and low pressure cylinders in
pairs at the ends of the same diameters.
5. Engines substantially as described and shown in the drawings.
1000
CARPMAEL & Co.,
Agents for the Applicant.