Rotary Engine. Page: 2 of 3
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UNITED
STATES
PATENT OFFICE.
CHARLES H. STONE AND ALONZO STONE, OF RINGGOLD, TEXAS, ASSIGNORS
TO THEMSELVES AND JAMES W. LONG, OF SAME PLACE.
ROTARY ENGINE.
SPECIFICATION forming part of Letters Patent No. 505,334, dated September 19, 1893.
Application filed June 12, 1893. Serial No.477,362. (No model.)To all whom it i7Cay concern:
Be it known that we, CHARLES H. STONE and
ALONZO STONE, of Ringgold, in the county of
Montague and State of Texas, have invented
5 a new and Improved Rotary Engine, of which
the following is a full, clear, and exact de-
scription.
The object of the invention is to provide a
new and improved rotary engine, which is
ro simple and durable in construction, very ef-
fective in operation and arranged to utilize
the motive agent to the fullest advantage.
The invention consists of certain parts and
details, and combinations of the same, as will
15 be hereinafter described and then pointed out
in the claims.
Reference is to be had to the accompanying
drawings, forming a part of this specification,
in which similar letters of reference indicate
20 corresponding parts in all the figures.
Figure. 1 is a sectional side elevation of the
improvement on the lines 1-1 of Figs. 3 and
4. Fig. 2 is a cross section of the same on the
line 2-2 of Fig. 1. Fig. 3 is a similar view
25 of the same on the line 3-3 of Fig. 1. Fig.
4 is a sectional plan view of the same; and
Fig. 5 is a plan view of the packing ring.
The improved rotary engine is provided
with a suitably constructed base A, carrying
30 a cylinder B, having an annular bore B', and
preferably made in two parts so as to be con-
veniently fastened together. Through the
cylinder B passes centrally the main driving
shaft C, journaled in suitable bearings D,
35 erected on the base A, the outer ends of the
said shaft carrying pulleys E, for transmit-
ting the rotary motion of the engine to other.
machinery.
Within the annular bore B' of the cylinder
40 B is arranged to travel a piston F, secured on
a radially-extending arm F', secured with its
hub F2 on the main driving shaft C, the said
arm F' extending through an annular slot
formed in the cylinder and leading to the bore
45 B'. In order to prevent leakage of the mo-
tive agent through this slot in the cylinder a
packing ring F3 is provided, fitted into the
said slot and supported on arms F4, project-
ing from the hub F2, the said packing ring
50 being split and curved to fit over the arm F'
as will be readily understood by reference toFigs. 3 and 5. The top divided or split por-
tion of the packing ring rests on the under
side of the piston F, so that no motive agent
can escape through the split as the same is 55
covered by the piston F. Into the annular
bore B' of the cylinder B extends a gate G,
mounted to slide longitudinally in an offset
B2, projecting from one side of the cylinder B
as plainly shown in Figs. 1 and 4. The gate 6o
G is provided with an outwardly-extending
stem G', passing through a suitable stuffing
box on the offset B2 and pivotally-connected
at its outer end with a link G2, supporting a
friction roller G3, engaging a cam.groove II' 65
formed in the periphery of a cam H, secured
on the main driving shaft C. The free end
of the link G2 is pivotally-connected with a
lever G4, fulcrumed on the base A and serv-
ing to hold the link G2 in a proper position, at 70
the same time permitting the link to move lon-
gitudinally according to the action of the cam
groove I-I' on its friction roller G3.
Into the annular bore B' of the cylinder B
leads a steam inlet port a, located at one side 75
of the gate G and connected with a short cy-
lindrical steam chest I, provided with a steam
inlet pipe J, connected with the steam sup-
ply. In the steam chest I is arranged a pis-
ton valve K, adapted to open and close the 8o
said port a to permit steam to pass to the an-
nular bore B' or to cut it off therefrom. The
stem K' of the piston valve K is arranged ra-
dially relative to the shaft C, and abuts on
the periphery of an eccentric cam L, secured 85
on the said main shaft as will be readily un-
derstood by reference to Figs. 2 and 4. From
the bore B' leads an exhaust port b, through
one of the walls of the cylinder B to the out-
side, the said port b being at the opposite side 90o
of the gate G to that containing the inlet
port a.
The operation is as follows: When the sev-
eral parts are in the position as illustrated in
the drawings, the motive agent from the steam 95
inlet pipe J can pass through the steam chest
I and port a into the annular bore B' of the
cylinder B at one side of the gate G, to act on
the piston F so that the latter is caused to
travel in the bore in the direction of the ar- oo
row a', as plainly shown in Fig. 3. The ac-
tion of the piston F causes a turning of the
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Stone, Charles H. & Stone, Alonzo. Rotary Engine., patent, September 19, 1893; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth173514/m1/2/: accessed June 27, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.