Improved notary Page
Year: 1898

page_text: Date of Application, 22nd June, 1898-Accepted, 27th Aug., 1898
Improved notary Page
I, JACOB LUDWIG PIENING, of Elmshorn, in the German Empire, Carpenter, 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: -
The object of the present invention is a rotary power engine of that kind in which
the piston has not a reciprocating motion, which is subsequently not converted by
means of rods and cranks into rotary motion, but which itself possesses a rotary
motion, and is connected to a shaft by means of a suitably formed arm.
The advantages of this kind of power engine consist principally in that they
avoid the centrifugal forces developed during the conversion of the reciprocating
into the circular motion, consequently by very much increased speed of revolution a
very considerably smoother running of the machine is obtained, and also a
considerable reduction of the wear and tear of the separate parts thereof.
The object of the invention is illustrated in the accompanying drawing, in which
Figure 1 shews a side view of a machine constructed according to the invention,
the cover having been taken off.
Figure 2 shews a vertical section on the line x x of Figure 1.
Figures 3 and 4 illustrate the interior of the two cylinder halves, and
Figure 5 is a view of one of the covers provided with a guiding rod.
To the frame of the machine there is attached by screws the cylinder formed of
two halves 6 and 61 having the steam inlets c and the steam outlets c¹. The
pistons d and d of the machine are placed upon annular hubs e and e¹, these latter
run loose upon the shaft f. To these hubs e and e¹ the controlling mechanism is
keyed from both sides. This consists on each side of the cylinder of a correspond-
ingly formed casting g and g¹. These castings are provided with radial channels,
and each of these channels possess a bolt i or i¹ which is capable of being displaced
outwards. These bolts i and i' are guided in the periphery of the cylinder. They
are moreover provided with two guiding rollers kk', the one whereof slides along
the periphery of the cylinder, whilst the other moves upon a guide bar n of the
leading screw upon the said periphery l. Upon the shaft ƒ are placed the rings o
and o¹. These are provided at their periphery with pieces cut out which correspond
to the apertures p and p¹ in the edge of the cylinder, and the exact form whereof
is shewn clearly in Figures 1, 3, and 4 of the accompanying drawing. It must
moreover be noted that in the rotating power engine according to the present
invention two pistons are present, which, strictly speaking, move independently of
one another and alternately, whereby through the ending motion of the one piston
in consequence of the steam or air cushion between acting as a buffer, the motion
of the other is commenced, and consequently the guidance of the machine by means
of suitable connecting parts is automatically effected by the piston.
The operation of the machine is as follows:-
In the position shewn in Figure 1 the one piston d is stationary whilst the
other d' stands as is shewn in front of the steam inlet. The fresh steam entering
at c effects a pressure on both pistons corresponding to their size. The piston d

page_text: is prevented from backwards motion because its bolt i is in contact with the sharp
edge of the cavity p. Owing to the shape of the cavity p it has consequently only
motion in the opposite direction available, and both pistons can therefore only turn
in one direction. The steam can consequently only press upon the piston to the
right, the bolt whereof at the same time quits the cavity plin consequence of its
shape, and enters in the cavity cut in the ring keyed upon the shaft f. Hereby
this ring o¹ is revolved by the piston, and with it the shaft f itself. The air piston
or the same in front of the piston d' escapes during its forward motion through the
outlet c¹. The outlet for the air or steam driving the machine is not placed close
behind the piston when at rest, but lies as shewn in the drawing a certain space
behind. Consequently when the outlet is closed by the rotating piston the air,
steam or the like between the two pistons is compressed, whereby the piston which
is at rest is moved forwards. By this means also the blow or stroke imparted to
the standing piston from the moving one is cushioned or diminished. After this
both pistons move together a short distance further until the rotating piston
reaches the position of rest. Any contact of the two pistons with one another is
completely impossible, because the steam or compressed air between them acts as
a buffer and prevents them approaching too near to one another. As, moreover,
the steam inlet is placed close before the piston which is in the position of rest, the
advanced piston is driven forward by the entering steam or the like.
At the same
time the bolt is pressed against the sloping track of the cavity p and thereby also
upon the edge of the ring upon the shaft f. The piston moving further will then
continue to move until it again closes the steam inlet, and the operation commences
over again. The dead point of the machine consequently remains at the end of the
motion of the piston, and in the zone the piston in motion presses the other one
forwards. The dead point position is ended as soon as its pressure forwards is
completed and the inlet is again opened. The machine must consequently be
provided with a sufficiently heavy fly wheel to overcome the dead point position.
If, however, two or more cylinders are fixed to drive a single shaft, and the
respective dead point positions are displaced one as against the other, the necessity
for the use of such a fly wheel is obviated. The removal of the bolt i from the
cavity of the ring o is not momentary but successive. The two guide rods have a
sloping track whereby the bolt i is already so far raised out of the cavity of the
ring o, that the ring can then take hold beneath the bolt, and press the same
upwards. Hereby the same then finally passes behind the sharp edge of the
cavity p.
After completion of its course the piston d¹ gives a cushioned stroke against the
piston d, and thereby pushes the latter before the steam inlet. The piston d then
stands in the initial position of the piston d¹ and is fixed by means of its bolt i,
whilst d makes the above described forward motion.
For the effectiveness of the machines there is required the spring q which is
placed in the guide piece, shewn specially in Figure 5, and is so shaped that it
corresponds to the cavity p or pl on the periphery of the cylinder. This spring
presses the bolt i or i¹ in the cavity_p.
The advantages of the improved rotary power engine, constructed as above
described, and adapted for the use of compressed air, carbonic acid, or other
sources of power if required, is that in contradistinction to all rotary steam
engines, which themselves have an advantage over the ordinary steam engines,
the present invention possesses greater simplicity of construction, and consequently
more certainty of action, as may readily be seen from the description and the
drawing.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what I
claim is :-
1. An improved rotary power engine characterized by the arrangement that the

page_text: cylinder, which pistons simultaneously effect their own control by aid of the above
described intermediate organs, and so that the piston which is just in front of the
steam inlet is supported against the cavity formed in the periphery of the cylinder,
whilst that piston which is behind the inlet is pressed forward by the steam, and
after concluding its motion presses the first piston forward, and takes its
place.
2. The improved rotary power engine, substantially as hereinbefore described,
and illustrated in the accompanying drawings.
W..P. THOMPSON & Co.,
322, High Holborn, London, W.C., Patent Agents for the Applicant.