A NEW ROTARY ENGINE
Year: 1836

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JoпN
FILMORE KINGSTON, of Ilsington, in the County of Devon, Esquire, send
greeting.
WHEREAS His present most Excellent Majesty King William the Fourth,
by His Letters Patent under the Great Seal of Great Britain, bearing date
at Westminster, the Twenty-eighth day of January, in the sixth year of His
reign, did for Himself, His heirs and successors, give and grant unto me,
the said John Filmore Kingston, His especial licence, full power, sole
privilege and authority, that I, the said John Filmore Kingston, my exors,
adiiors, and assigns, or such others as I, the said John Filmore Kingston,
my exors, admors, or assigns, should at any time agree with, and no others,
from time to time and at all times during the term of years therein expressed,
should and lawfully might make, use, exercise and vend, within England,
Wales, and the Town of Berwick-upon-Tweed, my Invention of "A NEW
ROTARY ENGINE;" in which said Letters Patent is contained a proviso that
I, the said John Filmore Kingston, shall cause a particular description of
the nature of my said Invention, and in what manner the same is to be
performed, to be inrolled in His said Majesty's High Court of Chancery
within six calendar months next and immediately after the date of the said
in part recited Letters Patent, as in and by the same, refence being
thereunto had, will more fully and at large appear.
NOW KNOW YE, that in compliance with the said proviso, I, the said
John Filmore Kingston, do hereby declare the nature of my said Invention,

page_text: and the manner in which the same is to be performed, are fully described
and ascertained in and by the following statement thereof, reference being
had to the Drawing hereunto annexed, and to the figures and letters marked
thereon; that is to say.
My Invention consists of a new arrangement of mechanical parts for
producing a rotary engine which may be caused to rotate by means of a
flow of steam or by a flow of water or other fluid, and thus be enabled to
drive machinery, as will be hereafter fully explained.
plates d, d, of the
side plates d, d, of
DESCRIPTION OF THE DRAWING.
Figure 2 is transverse
Figure 3 is also a section
d,
Figure 1 represents a section of the engine.
section of the case in which the engine is enclosed.
taken at the dotted lines a, a, in Figure 1. In each of these Figures the
same letters are used to denote the same parts. b is the main axis of the
engine turning in bearings c, c, on each side of the casing, as is shewn in
Figures 2 and 3.
This axis is keyed or otherwise affixed to the two side
engine, and consequently turns with them. These two
the engine, have projecting rings e, e, affixed thereto or
cast therewith, as is clearly shewn in the Drawing, and on the inner surfaces
of these side plates d, d, and in the rings e, e, are formed grooves or guides
in which the vanes or piston slide as they come into and go out of action,
as will be fully described hereafter. f is a cylinder, which is bolted to the
side plates d, d, at the parts marked g, g. By this means the side plates
are retained at a distance from each other; and such is also the case with the
rings or cylinders e, c, which constitute parts of such side plates, as is
above described. By this means there will be an opening all round the
cylinder d, e, f, as is indicated at h. In the cylinder f are formed four
recesses to receive the four vanes or pistons, as is clearly shewn in the Drawing.
The vanes or pistons i, i, are attached in pairs by their rods j, as is slewn
in the Drawing. k is the induction pipe, which, if the engine is intended
to be worked by steam, proceeds from a steam boiler. This induction pipe
passes through the opening h, between the side plates and rings d, e, as is shown
in the Drawing, to the point 7, where, by means of packing, which I prefer
to be metallic, as is shewn in the Drawing, the end of this induction pipe
is made to fill the vacant space produced by the side plates d, e, and the
internal cylinder f. Above the working cylinder is placed the wheel m, the
axis of which turns in suitable bearings on the levers n, which levers move
on an axis o, and the levers n can be raised or lowered, when desired, by the
screw and rod p, in order to tighten or slacken the endless band or strap q,

page_text: which constitutes the means of keeping the lower half of the steam cylinder
team-tight. This endless band or strap I form of a series of woven straps
of hemp or cotton, which are sewed together, having black lead tempered
with oil laid between the different layers or straps. The endless band or
strap q at all times covers the opening k of that part of the cylinder which
is required to be kept steam tight. This will readily be understood by an
examination of the Drawing. r is the eduction pipe way for steam or other
fluid. 3, 5, is the outer casing which contains the engine. This I have
heretofore formed of wood lined with copper, but it may be constructed of
other suitable material, and there is to applied a cock to the lower part of the
case s, to draw off the condensed water when steam is used.
Having thus explained the various parts, and the manner of combining
the same, I will now describe the manner of action. In doing so I will
suppose that steam is flowing from a boiler through the induction way into
and acting against the pistons No. 1 and No. 2. The steam will be resisted
by the end of the induction pipe, which performs the part of an abutment.
The pistons Nos. 3 and 4 will be within their recesses in the cylinder f. The
onward motion of the cylinder d, e, and the band q will carry the piston No. 3
beyond the abutment, and the piston No. 1 beyond the point at which the
cylinder is made steam-tight by the band q. By this means the steam will
have free way to pass off through the eduction pipe, and the piston No. 3
will descend by its own gravity, and be propelled forward by the steam, and a
like action will take place with respect to the piston No. 4, when the piston
No. 2 passes
the point at which the cylinder is steam-tight. By this means
a continuous, rotary motion will be communicated to the main axis of the
engine, and from that axis to the machinery which is to be driven; and it
should be stated that to reverse the direction of the revolution communicated
to such machinery it will be necessary to have suitable clutch boxes and
wheels, as is well understood; and in order to govern and control the working
of the engine and keep the notion uniform, a throstle valve should be placed
in the steam pipe, in like manner to ordinary steam engines; and I would
also remark, that although I have here described and recommended the
endless band for keeping a portion of the steam cylinder steam-tight,
I do not confine myself thereto, as it will be evident that a stationary
metallic band or strap proceeding only over that portion of the opening h
which is to be kept steam-tight, such band or strap being kept in contact
with the parts e, e, of the steam cylinder, by means of suitable springs or
other means. But this arrangement is liable to the objection of a larger

page_text: rubbing surface, in comparison with the endless band 9, which, revolving
with the steam cylinder, offers little friction in the working of the engine.
Having thus described the nature of my Invention, and the manner of
performing the same, I would have it uderstood that what I claim as the
Invention is, the mode of combining the side plates d, d, e, c, and f, leaving
a space all round, a portion of which is made steam and fluid tight by an
endless band or strap, or by means of a metallic band being caused to cover
that portion which is required to be kept tight, as above described.
In witness whereof, I, the said John Filmore Kingston, have hereunto
set my hand and seal, this Twenty-seventh day of July, One thousand 1
icht hundred and thirty-six
Inrolled the Twenty-eighth day of July, in the year of our Lord One
thousand eight hundred and thirty-six.