Year: 1896

page_text: Date of Application, 10th Aug., 1896
Complete Specification Left, 10th May, 1897-Accepted, 10th July, 1897
I, NICHOLAS MAÏEVSKI 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 novel arrangement of quick running engine, the
direction of rotation of which may easily be reversed. Its construction is shown in
the accompanying drawings.
Figure 1 is a side elevation and vertical longitudinal section of the engine, Figure 2
is an end view and transverse section through the cylinders; Figure 3 is a plan,
Figure 4 is a diagram showing the action of the forces when the engine is at work.
Figure 5 shows, to a larger scale, the valve arrangements for the distribution of the
steam to the cylinders; Figures 6 is a front view and 7 is a section of the
distributing valve; Figure 8 is an elevation partly in section of a modified
construction of the same engine and Figure 9 is an end elevation. Figure 10 a side
elevation of a modified arrangement of engine with four cylinders. Figure 11 is a
front elevation of the body of the four cylinders.
The engine consists of a piece F containing three, four or other number of
cylinders in one piece with and equidistant from each other. The piece F with its
cylinders and with the pistons working in the latter rotate in the bearings L, which
support a hollow shaft H H1 fixed to the piece F. The rotating system F is jointed
to two rings or fly wheels B by connecting rods m and cranks k (Figures 1 and 2).
The fly wheels B are eccentric with respect to the cylinders and rotate upon fixed
annular bosses C in one piece with the bearings L.
For engines of large size the arrangement shown in Figures 10 and 11 may be
adopted. In this case the cylinder piece F is carried by a hollow shaft H1 rotating
in the bearings L and the fly wheel in the form of a cross head B is carried by a
solid shaft H rotating in bearings I. The cranks m connect the two rotating
systems F and B in the same manner as before.
Figures 8 and 9 show a simplified construction of engine of the same type. In
this case the rods m of the pistons carry at their ends rollers R turning freely upon
their spindles n and guided by a fixed annular track B placed eccentrically with
respect to the cylinder piece F.
Steam is led into the engine by the pipe S (Figures 1 and 3) which passes into
a chamber K, surrounding the distributing valve P, by the hollow shaft H. The
distributing valve is mounted upon a fixed rod o o' which passes through the shaft H,
and passes out through stuffing-boxes. It is provided at one end with a levert by
which it and consequently the valve P can be turned through 180° which
immediately reverses the direction of rotation of the engine. The degree also of
expansion of the steam may be varied by changing the position of the valve P (the
arc u and bolt w allow the lever t to be fixed in each required position.)
The chamber K communicates with the cylinders by means of passages i ii
(Figure 7) the orifices of which are at the proper moment shut by the valve P
(which covers two of these orifices) or remain open. The valve P being stationary
it will be understood that it causes the cylinders each in its turn to be placed in

page_text: communication with the chamber K or with the chamber v (a hollowing in the
valve P) by which the expanded steam passes out into the portion H of the hollow
shaft which communicates with the outlet pipe S¹. .
In the arrangement shown in Figure 10 the steam escapes into the box Z, which
surrounds the cylinders and from there it passes out to the atmosphere or into a
condenser according to circumstances.
It will be understood that two engines of the same type may be combined, the
steam escaping from the first engine being caused to do work in the second engine,
in this manner a compound engine will be formed.
The diagram in Figure 4 shows the resolution of forces when the engine is at
work.
The pressure of steam p acting upon the piston g is resolved into two forces, one
acting along A c upon a fixed centre A and the other along c X perpendicular to the
first at a tangent to the circumference having its centre at A which produces a move-
ment of rotation X. A c. The work of the steam at each half turn is equal to p. 2 A B
and the work of the force X for the same period is r A c X. Neglecting friction
these two quantities are equal-p. 2 ABTA c X.
The principal advantages of this engine are:-rapid and regular working without
jars; a considerable reduction of weight and space, ease of construction, and the
absence of solid bed plates.
Dated this 10th day of August 1896.
CARPMAEL & Co.,
Agents for the Applicant.
I, NICHOLAS MAIEVSKI, of Briansk Mechanical Works, Ekaterinoslau, 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 novel arrangement of quick running engine,
the direction of rotation of which may easily be reversed. Its construction is shown
in the drawings accompanying the provisional specification.
Figure 1 is a side elevation and vertical longitudinal section of the engine. Figure 2
is an end view and transverse section through the cylinders. Figure 3 is a plan,
Figure 4 is a diagram showing the action of the forces when the engine is at work.
Figure 5 shows to a larger scale the valve arrangements for the distribution of the
steam to the cylinders; Figure 6 is a front view, and Figure 7 is a section of the
distributing valve; Figure 8 is an elevation partly in section of a modified con-
struction of the same engine and Figure 9 is an end elevation. Figure 10 is a side
elevation of a modified arrangement of engine with four cylinders. Figure 11 is a
front elevation of the body of the four cylinders.
The engine consists of a piece F containing three four or other number of
cylinders in one piece with and equidistant from each other. The piece F with its
cylinders and with the pistons working in the latter rotate in the bearings L, which
support a hollow shaft H H fixed to the piece F. The rotating system F is jointed
to two rings or fly wheels B by connecting rods m and cranks k (Figures 1 and 2).
The fly wheels B are eccentric with respect to the cylinders and rotate upon fixed
annular bosses C in one piece with the bearings L.
For engines of large size the arrangement shown in Figures 10 and 11 may be
adopted. In this case the cylinder piece F is carried by a hollow shaft H' rotating

page_text: in the bearings L and the fly wheel in the form of a cross head B is carried by a solid
shaft H rotating in bearings I.. The cranks m connect the two rotating systems F
and B in the same manner as before.
In
Figures 8 and 9 show a simplified construction of engine of the same type.
this case the rods m of the pistons carry at their ends rollers R turning freely upon
their spindles n and guided by a fixed annular track B placed eccentrically with
respect to the cylinder piece F.
Steam is led into the engine by the pipe S (Figures 1 and 3) which passes into a
chamber K, surrounding the distributing valve P, by the hollow shaft H¹. The
distributing valve is mounted upon a fixed rod o o' which passes through the shaft H,
and passes out through stuffing boxes. It is provided at one end with a levert by
which it and consequently the valve P can be turned through 180° which immediately
reverses the direction of rotation of the engine. The degree also of the expansion of
the steam may be varied by changing the position of the valve P (the arc u and
bolt w allow the levert to be fixed in each required position).
The chamber K communicates with the cylinders by means of passages i i i
(Figure 7) the orifices of which are at the proper moment shut by the valve P (which
covers two of these orifices) or remain open. The valve P being stationary it will be
understood that it causes the cylinders each in its turn to be placed in communication
with the chamber K or with the chamber v (a hollowing in the valve P) by which the
expanded steam passes out into the portion H of the hollow shaft which communicates
with the outlet pipe S¹.
In the arrangement shown in Figure 10 the steam escapes into the box z which
surrounds the cylinders and from there it passes out to the atmosphere or into
a condenser according to circumstances.
It will be understood that two engines of the same type may be combined, the
steam escaping from the first engine being caused to do work in the second engine, in
this manner a compound engine will be formed.
The diagram in Figure 4 shows the resolution of forces when the engine is at work.
The pressure of steam p acting upon the piston g is resolved into two forces, one
acting along A c upon the fixed centre A and the other along cX perpendicular to the
first at a tangent to the circumference having its centre at A which produces a move-
ment of rotation X Ac. The work of the steam at each half turn is equal to p. 2 A B,
and the work of the force X for the same period is A c X. Neglecting friction these
two quantities are equal: p. 2 AB= A c X.
The principal advantages of this engine are:-rapid and regular working without
jars; a considerable reduction of weight and space, ease of construction, and the
absence of solid bed plates.
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 :-
1. Engines in which the cylinders are fixed to a wheel free to turn about a centre
and the connecting rods are pivoted to another wheel free to turn about another centre
the two wheels being connected together by cranks.
2. Engines in which the cylinders with the pistons and their rods all rotate, the
cylinders about one centre and the outer ends of their rods about another centre,
the distance between the two centres being a constant for each engine and equal to half
the travel of each piston substantially as described.
3. Engines substantially as described and shown in the drawings.
CARPMAEL & Co.,
Agents for the Applicant.