Improvements in Rotary Motors Operated by Fluids.
Year: 1899

page_text: Date of Application, 26th July, 1899-Accepted, 23rd Sept., 1899
COMPLETE SPECIFICATION.
Improvements in Rotary Motors Operated by Fluids.
I, HENRY LAMBY, of 1, Monbijou, Malmedy, in the German Empire, Engineer,
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:-
This invention relates to a rotary motor which has two admission orifices
which allow of the rotary piston, having two operative surfaces, being always
under direct pressure.
Further the motor has an arrangement for making the operative surfaces
tight against the sides of the annular cylinder, consisting of four slides covering
one another, which are pressed against the sides and thus make the pressure
surfaces quite tight.
The arrangement of two admission orifices renders it possible to overcome
the dead centre without the use of a fly wheel and thus the motor is particularly
well adapted to be placed direct on the working axle.
Such a motor will be especially advantageous for comparatively small plants,
its erection and setting offering no difficulty. Any desired motive fluid. may
be used for working the motor.
In order that this invention may be the better understood, I now proceed to
describe the same with reference to the accompanying drawings and to the
letters and figures marked thereon.
Figure 1 shows a longitudinal section and
Figure 2 shows a transverse section of such a motor.
Figures 3 and 4 are two enlarged views of the packing arrangement to render
the pressure surfaces tight.
The fluid entering through the tube may be admitted through the pipes a¹
and a to the admission orifices 61 and 62 respectively, whence it passes into the
annular cylindrical chamber c. In this chamber rotates a piston h provided
with pressure surfaces or vanes d', d³, consisting essentially of a disc arranged
in the casing and keyed onto the working axle.
The steam
The fluid escapes through the exit orifice o¹ and the pipe o.
admission orifice is provided with a hinged cover which is closed by the
rotary pressure surfaces or vanes of the piston h and raised again when
steam enters, and makes a steam tight joint with regard to the exit orifice o¹
and the piston chamber.
When the piston occupies the position shown in Figure 2, the fluid enters
through the orifice b₁ as well as through the orifice 62. The fluid entering
through the orifice 62 presses on the surfaces d¹, and the fluid entering through
the orifice presses on the surfaces . Simultaneously the force entering
through the orifice 6' will press the cover against the piston, in the position as
drawn, in such a manner that a tight joint is made between the pressing sur-
face and the cover i, which space is in direct communication with the exit o¹
as shown in the drawings.
When the surfaces of the piston occupy the position shown in dotted lines,

page_text: so that the surface is placed directly before the exit orifice and causes the
cover of the admission orifice to close, the surface has already passed over
the steam admission orifice 2. Therefore the fluid can enter again with full
pressure and thus bring the piston completely over the dead centre.
As shown in Figures 3 and 4 four slides prest on the surfaces and ². Of
these slides each two have bent parts p¹ which extend over the neighbouring
slide. By means of plates 9 and slides r, the slides are pressed against the
surface so that they can still slide. The slides 2 have preferably rivetted bolts s
against which bear springs constructed preferably as shown in Figure 3, which
have a tendency to press the slides apart in a diagonal direction. In this manner
the pressure surfaces are made tight against the sides of the cylinders. It will
be obvious that wedge pieces may be used, instead of the springs pressing
against the bolts s, and be pressed into the space between two slides by spring
pressure and thus press the slides apart in a diagonal direction.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, I declare that what I
claim is:
:
1st. A rotary motor in which the admission of the fluid takes place alternately
at two different places so that a rotary piston has two pressed surfaces or vanes
under direct active pressure to avoid a dead position, substantially as described.
2nd. In a motor as claimed in Claim 1 the arrangement on the pressure faces
or vanes of the rotary piston of four slides covering one another which are
always pressed against the sides of the annular cylinder chamber to make tight
sliding joints, substantially as described.
Ocul
e TI
1800