Rotary Reversible Steam-Engine Page: 4 of 6
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UNITED STATES PATENT OFFICE.
JOHN J. E. II. PAYNE, OF LIPSCOMB, TEXAS.
ROTARY REVERSIBLE STEAM-ENGINE.
SPECIFICATION forming part of Letters Patent No. 420,094, dated January 28, 1890.
Application filed May 14, 1889. Serial No. 310,703. (No model.)To cll whom, it 7mcay concerns:
Be it known that I, JOHN J. E. H. PAYNE, of
Lipscomb, in the county of Lipscomb and State
of Texas, have invented certain new and useful
5 Improvements in Rotary Reversible Steam-
Engines; and I do hereby declare the follow-
ing to be a full, clear, and exact description
of the same, reference being had to the ac-
companying drawings, forming a part of this
io specification, and to the letters of reference
marked thereon.
This invention relates to certain improve-
ments in rotary engines, particularly those in
which the direction of rotation maybe changed
15 at will, the object of the invention being to
produce an engine of great simplicity of con-
struction and economy in running, not easy
to get out of order, and the parts of which
can be readily removed and replaced when
20 worn or broken.
With these ends in view the invention con-
sists in certain novel details of construction
and combinations and arrangements of parts,
to be hereinafter described, and pointed out
25 particularly in the claims at the end of this
specification.
In the accompanying drawings, Figure 1 is
a cross-sectional view of an engine con-
structed in accordance with my invention.
30 Fig. 2 is a similar view of the engine with
sliding abutments only on the piston, and
also showing the valve for working the en-
gine expansively. Fig. 3 is a similar view,
with sliding abutments only in the cylinder.
35 Fig. 4 is an end view showing the expansion-
valve and reversing-valve-operating mechan-
ism. Fig. 5 is a top plan view of one of the
abutments, showing both forms of pivotal
blocks. Fig. 6 illustrates the preferred form
40 of packing. Fig. 7 is a longitudinal section
of same.
Similar letters of reference in the several
figures indicate the same parts.
The cylinder A, in which the rotary piston
45 B works, may be of any desired length, ac-
cording to the amount of power required, be-
ing in the preferred construction cast with
suitable base projections on feet for attach-
ment to a support, either in vertical or hori-
50 zontal position, and at diammetrically-op-
posite points on the cylinder are arranged re-versing-valves C, preferably working in suit-
able cylinders D, formed directly in exten-
sions of the main cylinder. These valves C
are formed with passages c c', passing through
the same at right angles, to permit of the si-
multaneous passage in opposite directions of
the live and exhaust steam, such valve in the
preferred form (shown in Fig. 2) consisting of
a cylindrical piece of somewhat less diameter
than the cylinder in which it works with the
said passages bored through it, as just ex-
plained, and to define the chambers commu-
nicating with the passages sliding steam-
tight packings c3 are recessed into the cy-
lindrical piece and kept pressed outward
against the inner surface of the cylinder by
springs c4, as will be readily understood.
An entrance port or ports E is provided,
opening either directly into the valve-cham-
ber or through a suitable cut-off valve, to be
presently described, and at a proper distance
from the entrance port or ports is an exhaust
port or ports E', two or more in number for
great speed, ports e e' being provided leading
from the valve-chamber into the cylinder, one
or more on each side of the abutment which
separates the exhaust from the live steam.
When the valve is in one position, the port
or ports on one side are in communication
with the live-steam port or ports, and the port
or ports on the other side with the exhaust
port or ports, and when the valve is in re-
versed position to change the direction of ro-
tation of the engine the position of the ports
is-reversed and steam let in and exhausted in
the opposite direction.
In the form of engine illustrated in Figs. 1
and 3 pivoted sliding abutments F are pro-
vided in the cylinder at diametrically-oppo-
site points, which, bearing on the piston,
separate the live-steam from the exhausting
chambers. These abutments consist of solid
sliding sections f, forming the division-wall,
and arms f', connected thereto at the upper
end and pivotally connected to the cylinder-
casing by means of a rod f2, held by blocks
f3, dovetailed into the said casing, as shown
in Fig. 1, the dovetail recess being formed by
the projections f4 and the recess f. These
blocks f are placed between each of the arms,
as shown in Fig. 5, and a wedge-shaped piece
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Payne, John J. E. H. Rotary Reversible Steam-Engine, patent, January 28, 1890; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth172272/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.