Year: 1897

page_text: Date of Application (in United Kingdom), 13th Feb., 1897
Complete Specification Left, 13th Feb., 1897-Accepted, 27th Mar., 1897
I, PAUL AURIOL of 23 Rue Godot-du-Maroi, Paris, in the Republic of France,
Civil 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 :-
The improved motor forming the subject of this invention is characterised by the
special method of transforming the rectilineal alternating movement of the pistons
into a continuous circular movement, and next by the method of distribution.
In the accompanying drawings
Fig. 1 represents a longitudinal sectional elevation of my engine; Fig. 2 is a
plan of the same with a partial section; Fig. 3 is an end view of the same, the left
standard and the means for distribution being removed;
Fig. 4 is a partial view of the distributing devices, the valve face Q being
removed; Fig. 5 is a front view of the valve face Q;
Figs. 6, 7, 8 and 9 are diagrams showing different phases of the distribution.
A is the cylinder; B, B₁ are the two pistons; C, C¹ are oscillating shafts in the
pistons B, B; D is the shaft which forms one piece with the cylinder; E, E are
two fixed sleeves in which the shaft D turns; H, H' are two stardards in which the
sleeves E, E' are mounted; F, F1, F2, F3, are four eccentrics forming one piece
with the sleeves E, E' these sleeves are keyed two and two at 180 degrees to each
other, that is to say, F, Fs are strictly keyed alike, and F1, F2, are both keyed
alike, but at 180 degrees from F, F³.
the
G, G', G, G³, are the respective straps of the eccentrics F, F', F³, F³,
friction of these eccentrics being reduced by balls. The eccentric straps are fixed
as follows:-
The straps G, G³ are fixed to the eccentrics of the shaft C of the piston B, and
the straps of G1, G2 to the extremities of the shaft C' of the piston B¹.
I is a part which is firmly connected to the cylinder A.
Jis a pipe which connects the orifice of the part I to the middle of the
cylinder A. L is a distributing valve face furnished, with a pipe K which fits
with a tight joint into the orifice M; N is another valve face pierced
with two orifices O, P; Q is a fixed valve face pierced with an orifice R for the
admission, and an orifice S for the exhaust.
T, T1, T2, T3, is a series of differential bevel gear wheels of which T forms one
piece with the part I ; T³ forms one piece with the valve Q, and T1, T2, are fixed
behind the valve face N, these series of gear wheels enable one to turn the valve face N
at half the speed of the valve face L. U are springs which press the valve face L
against the face N; V is the automatic lubricator formed with a crown a provided
with a channel 6 in which oil runs from a reservoir V₁, from this channel b pass

page_text: the pipes e which convey the oil to the parts to be lubricated; springs f press the
crown a against the standard H₁ forming valve face X; the ignition device is
connected to the contact Y which rubs at the desired moment upon the brush Z
which is connected to the induction coil.
Z is the contact which turns with the valve face N, and forms the inducing
circuit which will rub upon the insulated contact 9. is the return terminal for
the inducing and induced currents.
The mixture being introduced into the cylinder and ignited at the desired time,
the pistons exert their force upon the fixed eccentrics through the medium of their
straps and thus produce a more or less oblique result relatively to the longitudinal
axis of the cylinder A which is thus caused to make a rotary movement about its
transverse shaft D.
This arrangement enables one to obtain a much greater velocity than with the
arrangement shown in my last patent, while the same velocity of the pistons is
ensured.
For the distribution, on referring to Figs. 6, 7, 8, 9, it will be seen that at the
commencement, the orifice K of the valve face L is between the two orifices O, P
of the valve face N (these orifices O, P being perceptibly at 90 degrees from each
other). When the rotation takes place the orifice K passes in front of O, the
admission takes place (because is in front of the orifice R for the admission in
the valve face Q), and when K has made half a turn it will have passed beyond the
orifice O, which has made only a quarter of a turn; and all the orifices will be in
the position of Fig. 7. K turning through 180 degrees, the compression of the
mixture is effected, because K will pass in front of the solid part of the valve
face N; the orifices will then be in the position shown in Fig. 8, the ignition takes
place, K turning for the third time through 180 degrees all the orifices have passed
to the position shown in Fig. 9; K turning further encounters the orifice P which
is in front of the exhaust orifice S in the valve face Q; the exhaust then takes
place, and K passing a fourth time through 180 degrees all the orifices have again
passed to the position shown in Fig. 6.
It will be observed that the pistons are both always far away from the centre
and that therefore I obtain the equilibrium of the driving forces and inertia.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manuer the same is to be performed, I declare that what I
claim is :
In an engine having two pistons moving in opposite directions in the same
cylinder,
1. An improved means of transforming the rectilineal alternating action of the
pistons into a continuous rotary movement, which means consist in transmitting
the action of the pistons B, B¹ upon eccentrics F, F1, F2, F3, through the medium
of straps with friction balls G, G1, G2, G³, all as herein described and set forth.
2. A distributing device composed of parts I, N, Q, connected together by a
series of differential gear wheels for the purpose of causing the part N to turn at
half the speed of the cylinder A; all as herein described and set forth.
Dated this 13th day of February 1897.
S. S. BROMHEAD,
97 Newgate Street, E.C., Agent for Applicant.