IMPROVEMENTS IN ROTARY ENGINES
Year: 1882

page_text: LETTERS PATENT to William Robert Lake, of the firm of Haseltine, Lake,
and Co, Patent Agents, Southampton Buildings, London for an Invention of
"IMPROVEMENTS IN ROTARY ENGINES "A communication to him from
abroad by Ignatz Lojda of the City and State of New York United States of
Amonics
PROVISIONAL SPECIFICATION left by the said William Robert Lake at the
Office of the Commissioners of Patents on the 6th September 1882.
"3
WILLIAM ROBERT LAKE, of the firm of Haseltine, Lake, and Co, Patent Agents,
Southampton Buildings, London, "IMPROVEMENTS IN ROTARY ENGINES [A com-
munication to him from abroad by Ignatz Lojda, of the City and State of New
York United States of America.]
This Invention relates to rotary engines and comprises several improvements
hereinafter described.
In carrying the said invention into practice I provide a wheel made fast to a
shaft running in suitable bearings. The circumference or periphery of this wheel is
provided with projecting flanges forming a deep recess. In the inner surface of
this recess hinged valves are arranged, one set of valves opening in one direction
and the other set opening in an opposite direction. The upper half of the periphery
of this wheel is enclosed in a stationary casing provided with a central abutment
at top, and two side abutments at the end of the casing near the centre line of the
wheel so as to form, with the recess of the wheel, two tight chambers, one on each
side of the central abutment.
The abutments are provided with suitable packings at their ends and sides to
make each chamber steam or air tight. In the central top abutment passages are
arranged, one of them leading to one chamber and the other to the other chamber.
These passages are covered by a suitable slide-valve working in a valve casing
attached to the top of the case so as to direct the pressure entering the valve casing
through a pipe into the one or the other chamber as desired. Near the lower
end of the casing, at each side, openings are arranged for the exhaust or escape of
Prins 6d1

page_text: the pressure, to which pipes may be attached leading the same in any desired
direction.
The spindles of the valves pass at one side through the wheel and are
provided with a lever connected through rods having suitable rollers at their ends,
with a groove in a stationary wheel which is attached to the support carrying the
bearing and held stationary, and its groove is made of such a shape that its action
through the rods and levers will carry one set of the valves while passing into the
casing to open as soon as the valve has passed the abutment, remain open while
passing through the same, and close again just before arriving at or near the end
abutinent, and then remain closed till passing again the abutment.
When these valves are open they fit tight and fill the internal area of the case,
and the pressure admitted through the passage will act against the same and thus
turn the wheel around in one direction.
When it is desired to have the wheel turn in the opposite direction the position
of the valve is changed so as to admit the pressure through the other passage into
the other chamber when the other valves operated by a stationary cam, and the
rods, will be made to open in a similar manner to that above described

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said William Robert Lake in the Great Seal Patent Office on the
5th March 1883.
"
WILLIAM ROBERT LAKE, of the firm of Haseltine, Lake, and Co., Patent
Agents, Southampton Buildings, London. "IMPROVEMENTS IN ROTARY ENGINES =
A communication to me from abroad by Ignatz Lojda; of the city and state of
New York, United States of America.
This invention relates to rotary engines and comprises several improvements
hereinafter described.
In the accompanying drawing.
Figure 1 is a vertical section of a rotary engine constructed according to this
invention.
Figure 2 is a transverse section of the same and Figure 3 illustrates a modification
of this invention.
Similar letters of reference indicate corresponding parts in the several figures.
A is a wheel secured to a shaft S running in suitable bearings P.
The circumference or periphery of this wheel is provided with projecting flanges a a
forming a deep recess C. In the bottom of this recess C hinged valves J and J' are
arranged, the valves J opening in one direction and the valves J' opening in an
opposite direction.
The upper half of the periphery of this wheel is enclosed in a stationary casing B
provided with a central abutment D at the top, and two abutments D' at the end
of the casing near the centre line of the wheel, so as to form with the recess C of
the wheel, two tight chambers C and C", one on each side of the abutment D.
The abutments D and D¹ are provided with suitable packing at their ends and
sides to make each chamber steam or air tight. In the central abutment D passages
or ports n n¹ are arranged, one of them leading to the chamber C¹ and the other to
the chamber C. These passages n. n¹ are covered by a suitable slide-valve m
working in a valve casing attached to the top of the case B, so as to direct the.
pressure entering the valve casing through the pipe R into the one or the other
chamber C or Cas desired. Near the lower end of the casing B, at each side,
openings E are arranged for the exhaust or escape of the pressure, to which openings
pipes may be attached leading in any desired direction.
The spindles of the valves J pass at one side through the wheel A and are
provided with levers v connected with rods w having at their ends suitable rollers
which run in a groove G in a stationary wheel or cam L which is attached to the
support carrying the bearings P. The groove G is of such shape, and its action
through the rods w and levers v will cause the valves J passing into the casing C',
to open as soon as the valve has passed the abutment D, to remain open while
passing through the same, and to close when it has arrived at or near the side
abutment D' and then remain closed till it has again passed the abutment D.
When these valves J are open they fit tightly the face of the case C³, and the
pressure admitted through the passage n will act against the same and thus turn
the wheel A in the direction shown by the arrow.
When it is desired to have the wheel turn in the opposite direction the position
of the valve m is changed so as to admit the pressure through the passage n¹ into
the chamber C when the valves J¹ operated by a stationary cam L' and rods w¹
will be caused to open in a similar manner to that above described.
In a modification of this invention, instead of arranging the hinged valves J
and J in the bottom of the recess C as shown in Figure 1, they may be arranged
upon the two projecting flanges a a as shown in Figure 3. In this case the spindles

page_text: of the valves J and J¹ are placed radially and the valves opposite each other fit
together and close the chamber C or C¹.
Having thus fully described the said invention as communicated to me by my
foreign correspondent, and the mannerof performing the same, I wish it understood
that I claim.
A wheel having projecting flanges a a and hinged valves J, J¹ arranged to be
operated in opposite directions by means of the levers vv, the rods ww¹, and the
stationary wheels or cams having grooves G G substantially in the manner
described, in combination with a stationary casing B enclosing the upper half of
the said wheel, and provided with abutments D and D¹, and passages or ports n, n',
in the central abutment D, closed by a suitable valve, the whole being arranged to
operate substantially in the manner, and for the purpose, herein specified.
In witness whereof I the said William Robert Lake have hereunto set my
hand and seal this third day of March in the year of Our Lord One
thousand eight hundred and eighty three.