IMPROVEMENTS IN ROTARY MOTIVE POWER ENGINES
Year: 1884

page_text: I, JOHN HAMILTON of Succoth in the County of Argyle, Fisherman, do hereby'
declare the nature of the said Invention for "IMPROVEMENTS IN ROTARY MOTIVE
POWER ENGINES," to be as follows:-
This Invention relates to improvements in rotary motive power engines.
The engine as constructed in accordance with this Invention consists of a
cylinder or circular casing which is stationary and provided at its interior with
a concentric wheel or disc in the periphery of which a groove is made. In the
groove two or more pistons or pressure plates, are centred and from the points of
their attachment the said pistons or plates, extend to the interior surface of the
cylinder or casing which is formed with two or more abutments and two or more
passages for inlet and exhaust of the motive fluid and the number of such
abutments and passages may be regulated according to, the number of pistons or
pressure plates with which the wheel or disc provided.
The valve or disc is secured on a shaft or spindle extending through the cylinder
or casing and the pistons or pressure plates are so jointed to the said wheel or disc
that when being acted on by the steam or other motive fluid they are extended
that is to say they entirely fill the breadth of the space between the bottom of the
groove and the interior of the cylinder but when they come in contact with an
abutment they fold down in the groove until the abutment is passed after which
they are immediately again caused to assume their extended position by means of
springs or their equivalent.
The engine may be arranged to work expansively and if desired it may also be
made reversing in which latter case the journals on which the pistons or pressure
plates turn are or may be cranked at their outer ends and arranged to fold in
either direction by shifting a pin or its equivalent from one side of the cranked
part to the other.
Dated this fourth day of February 1884.

page_text: I, JOHN HAMILTON of Succoth, in the County of Argyle, Fisherman, do hereby
declare the nature of the said Invention for "IMPROVEMENTS IN ROTARY MOTIVE
POWER ENGINES" 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 improvements in rotary motive I
power engines and as
seen in part side elevation and part longitudinal vertical section at figure 1, and in
part end elevation and part transverse section at figure 2, the engine as constructed
in accordance with the Invention consists of a circular casing A, which is stationary
and provided with passages or ports and slide or other valves B, for the supply and
exhaust of the steam or other motive power, these valves being operated from the 1
main shaft C, by eccentrics D, and links and levers or in other ordinary manner.
At the interior of the casing a wheel E, is carried concentrically on the shaft C,
and in the periphery of the said wheel a groove is made as more particularly seen
at F, figure 2. In this groove two or more pistons or pressure plates G, are
centred on shafts H, the said pistons or plates extending outwards to the interior
surface of the cylinder or casing A. Two or more abutments I, project inwards.
from the interior of the casing A, to the bottom or inner surface of the groove F.
When being acted upon by the steam or other motive fluid the pistons or pressure
plates G, entirely fill the breadth of the space between the bottom or inner surface
of the groove F, and the interior surface of the casing A, but when the pistons
come in contact with the abutments I, they fold down into recesses J, made in the
bottom of the groove F, until the abutment is passed after which they are again
immediately caused to assume their extended position. by means of springs a, one
end of each of which is connected to the wheel E, whilst its other end is connected
to a lever b, secured on one extremity of the axis H, of each piston or pressure
plate G.
The engine may be made to work expansively and if desired it may also be made
reversing in which latter case a pin c, is employed in conjunction with each lever b,
which pin is inserted in one of two holes made to receive it in the wheel E,
accordingly as the engine is rotating in one direction or the other. The positions
of the pins c, relatively with the levers b, is such that one or other side of each
lever comes in contact with the pin when the piston G, is at its full extended position
thereby preventing the steam pressure from throwing the piston down. These
pins are or may be connected to a lever or any other suitable mechanism whereby
they may be withdrawn from one hole and inserted in the other or such adjustment
may be effected by hand.
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,
The general arrangement and combination of parts constituting the rotary
motive power engine substantially as herein before described with reference to the
drawings hereunto annexed...