Year: 1897

page_text: Date of Application, 22nd Apr., 1897-Accepted, 22nd May, 1897
I, CAMILLE DUBOIS, of 42 Boulevard Bonne Nouvelle, Paris, in the Republic
of France, do hereby declare the nature of this invention and in what manner the
same is to be performed, to be particularly described and ascertained in and by
the following statement :-
My invention relates to improvements in rotary motors, and is also applicable to
pumps.
My invention has for its object to provide a motor or pump of simple design in
which the parts are readily connected and operate economically and with a minimum
of friction.
The accompanying sheet of drawings illustrate a rotary motor embodying the
features of my invention, in which Figure 1 is a sectional elevation, and Figure 2 is
a sectional elevation transverse to Figure 1.
In carrying my invention into effect as illustrated in the accompanying drawings
I provide a cylindrical casing A' in the centre of which I provide a boss in which
is mounted a hollow or tubular pin S, which projects into the cylindrical casing,
and carries the extremities of vanes P. I provide a cover A upon the cylindrical
casing A', which is bolted thereto as illustrated, and carries the motor spindle B in
a suitable bearing eccentric to the hollow pin or pivot S. This motor spindle B
has provided upon one extremity integral therewith a rotating cylindrical frame D upon
which the vanes P are mounted, and upon the opposite extremity a driving pulley T
from which motion may be communicated as required. The rotating cylindrical
frame D has mounted thereupon bearing sleeves C, C1, C2, C3, of such a width and
breadth as to receive and allow the operation therein of the vanes P. The hollow pin
or pivot S has provided thereupon radial channels through which lubricant may be
passed to the exterior bearing surface, a suitable lubricator being mounted upon
the exterior as illustrated. The steam passes through the steam inlet M, and by
pressure upon the respective blades P causes the rotation of the cylindrical frame Ď
with which the shaft or spindle B is in integral connection; the eccentric disposition
of the cylindrical frame allowing of a gradual increase of the space in the cylinder
between each successive blade and the expansive energy of the steam is utilised in
the rotation of the cylinder in the direction indicated. The steam, in part, issues
out of the passage N₁ to the condenser or to the atmosphere, the remainder issuing
out through the passage M¹. By thus providing two outlet passages there is no
counter active resistance to rotation.
Motion in the opposite direction can be produced by leading the steam through
the inlet M' and exhausting through N and M.
The greatest speed and economic working can be obtained without any vibration
in such motor as herein before described, while a high efficiency is secured even when
working with a small steam consumption.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is.-
1. A rotary motor or pump consisting of a cylindrical casing carrying at its
centre an axis upon which blades rotate said blades passing through the rim of a
rotating cylindrical frame in integral connection with the motor shaft, and eccentric