Rotary Engine. Page: 4 of 5
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86
Fig. 3. Controlling slide valves 50 are located in the
chests, and are movable to positions so as to uncover
either of the inlet ports 44, or to cover both simultane-
ously. These valves furthermore have interior cham-
5 hers 51 provided with open ends that are at all times
in communication with the exhaust ports 49. They
are also movable into communication with either of the
inlet ports 46 or both simultaneously, as shown in Figs.
3 and 9. The valves are connected to links 52 that
10 pass through suitable stuffing boxes 53 in the upper]
ends of the chests, and have their upper ends suitably
connected to an actuating lever 54, that is fulcrumed
between its ends on a bracket 55 fastened to the top of
the outer casing. One end of the lever has a handle
15 56, and a dog 57 mounted oil said lever, has an actuat-
ing device 5S associated with the handle. The dog co-
operates with a suitable rack 59 formed upon the
bracket 55.
The operation of the engine may be briefly described
20 as follows. If motive fluid is supplied to the steam
chests, and the lever is moved in one direction, the up-
per inlet port 44 of one chest will be uncovered, while
the lower port of the opposite chest will be exposed.
The motive fluid will thus have access to the piston
25 chamber on opposite sides of the packing devices, and
will move in opposite directions, thereby acting against
the blades 23 and causing the rotation of the piston, the
exhaust taking place through covered ports 44 and ex-
haust ports 49. To reverse the engine, it is only nec-
30 essary to swing the lever in the opposite direction,
thereby covering the opposite ports and connecting
them to the exhaust, while opening the ports which
were before in communication with said exhaust. To
stop the engine, the lever is moved to and locked in an
35 intermediate position, whereupon both sets of inlet
ports 44 will be covered, but when so arranged, it will
be noted by reference to Fig. 9 that all the ports will
be in communication with the exhaust, and conse-
quently there will be no vacuum in the piston chamber,
40 caused by the revolving blades, and no resistance of-
fered thereby to the rotation of the piston.
In operating the structure, the wear will, of course,
be between the blades 23 and the walls of the channel
17 in which they operate, but inasmuch as the channel
45 and the blades are tapered, the wear will be automatic-
ally taken up, and a proper fit at all times secured. In
case it is desired to move the cylinder sections closer*
together, it is only necessary to turn the set screws 15,
but if the wings or plates 41 of the packing devices will
50 not permit the desired movement, said wings or plates
are removed and planed down the desired distance.
The particular connection of the driving means to the
piston is important. It will be observed that the driv-
ing shaft is supported independently of the piston, and
55 yet is directly connected thereto. As a result, the.
spring" of the driving shaft due to the resistance of
the parts being driven, is.not transmitted to the piston,
which has its own mounting; said piston is therefore
not liable to be thrown out of alinement, and is re-
60 lieved of the strains incident to said "spring", thereby
obviating excessive wear upon the pats.
From the foregoing, it is thought that the construction,operation, and many advantages of the herein described
invention will be apparent to those skilled in the art,
65 without further description, and it will be understood1,344
I that various changes in the size, shape, proportion, and
minor details of construction, may be resorted to with-
I out departing from the spirit or sacrificing any of the
advantages of the invention.
Having thus fully described my inventionwhat 1 70
claim as new, and desire to secure by Letters Patent,
Iis:-
1. In a rotary engine, the combination with an outer
casing, of a cylinder member located therein and compris-
ing sections, said sections having ports therethrough at 75
the joint between them, a device located between the sec-
tions and separating the ports, and a rotary piston located
in the cylinder member.
2. In a rotary engine, the combination with a cylinder
member comprising sections, said sections having ports 80
therethrough at the joint between them, a rotary piston
located in the cylinder member, and packing elements
mounted between the 'sections and cooperating with the
piston, said elements separating the said ports.
: 3. In a rotary engine, the combination with a cylinder 85
member having a piston chamber and comprising sections,
of means for urging the sections toward each other. a ro-
tary piston operating in the chamber, and packing ele-
ments mounted between the sections and coperating with
the piston. . 90
4. In a rotary engine, the combination with a cylinder
member having a substantially elliptical piston chamber
and comprising sections, said chamber being disposed par-
tially in each section and having its minor axis substan-
tially In the -plane of the joint between the sections. means 95
for urging the sections towards each other, a rotary pis-
ton packing in the chamber, and packing elements mounted
between the sections and cooperating with the piston.
5. In a rotary engine, the combination with a cylinder
member comprising sections and having a piston chamber, 100
of a rotary piston operating in the chamber, and packing
means interposed between the sections of the cylinder
member and comprising a casing, a packing block located
In the casing, and a spring interposed between the end of
the block and the casing, said spring being housed within 105
said casing.
- 6. In a rotary engine, the combination with an outer
casing, of a cylinder member located within the casing and
having a substantially elliptical piston chamber therein,
said cylinder member comprising sections and having the 110
chamber located partially in each section, set screws
threaded through the opposite sides of the casing and hav-
ing their inner ends bearing against the sections for urg-
ing them toward each other, a rotary. piston operating in
the chamber and having blades coperating with the outer 115
walls of said chamber, and packing devices interposed be-
tween the cylinder member sections and arranged on op-
posite sides of the piston, said packing members each com-
prising a substantially U-shaped casing, a packing block
located in the casing and coUperating with the piston, and 120
springs interposed between the block and rear end of the
casing.
7. In a rotary engine, the combination with an outer
casing, of a cylinder member comprising sections arranged
within the casing, said cylinder member having a piston 125
chamber, means engaged with the casing for moving the
sections toward each other, a rotary piston operating -in
the piston chamber, packing devices interposed between
the sections of the cylinder member, steam chests ar-
ranged on opposite sides of the casing and having ports 130
communicating with the piston chamber on opposite sides
of the packing devices, and means for controlling the pas-
sage of motive fluid through the ports.
8. In a rotary engine, the combination-with a cylinder
member comprising sections and having a piston chamber 135
that is provided with an outwardly tapered outer channel.
of a rotary piston body -located in the chamber, an o-
wardly movable outwardly tapered blade carried by 1toe
piston body and operating in the channel, and packing ele-
ments located between the sections of the cylinder member 140and cooperating with the piston.
9. In a rotary engine, the combination with a cylinder
member comprising sections and having a substantially
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Reference the current page of this Patent.
Wright, William Lee Andrew. Rotary Engine., patent, July 30, 1907; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth512915/m1/4/: accessed July 18, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.