UNITED STATES PATENT OFFICE.
OLIVER WRIGHT AND A. A. WILDER, OF WARSAW, NEW YORK. ROTARY
Specification of Letters Patent No. 667, dated April 2, 1838.
To all whom it may concern:
Be it known that we, Oliver Wright and Aretus A. Wilder, of
Warsaw, in the county of Genesee and State of New York, have
invented a new and useful Improvement in the Reacting
Steam-Engine; and we do declare that the following is a full and
The nature of our invention consists in providing the apertures
or orifices of the engine with springs and set screws so that
they may be opened or closed as may be required. This is effected
by having a spring placed in the apertures and riveted to the
part forming the end of the tube or steam conductor, the set
screw passes through the same so that by starting the screw
forward it presses against the spring and closes the orifices.
Figure 1 represents the engine wheel with one of the side plates
removed to show the manner of constructing the same. a, a, the
hollow arms or tubes which convey the steam from the center to
the edge of the wheel. b is two iron plates about six inches in
diameter placed each side of the arms or tubes and firmly riveted
together for the purpose of holding the foot of the false arms.
C, C, C, false arms through which the side plates are riveted, d,
the rim through which the side plates are also riveted. e e
represents the springs in the hollow arms. f, f, set screws for
moving the springs e, e. Fig. 2 represents one half of the case
with an opening or door on the side for the purpose of
conveniently having access to the orifices. Fig. 3 a small door
to fit the opening in the case.
What we claim as our invention and desire to secure by Letters
The application of springs and set screws to the apertures of
rotary steam engines, and also of placing a door in the case so
that the apertures may be closed or opened without taking the
OLIVER WRIGHT. ARETUS A. WILDER.
Witnesses: John Wilder, Wm. Andrews.