Improvements in Gas, Petroleum, or like Motors.
Year: 1897

page_text: Date of Application, 20th Mar., 1897-Accepted, 24th Apr., 1897
Improvements in Gas, Petroleum, or like Motors.
I, ALBERT EDOUARD LE BRUN, of Montrauge, in the Republic of France,
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 new gas, petroleum or the like motor and relates
more particularly to the special arrangement of the fly-wheel, which forms at the
same time an engaging sleeve or device, to the parts provided for regulating the
distribution and to the control of the pistons.
In order that my invention may be readily understood, I have represented
the same by way of example in the accompanying drawing in which
Figure 1 is a vertical sectional view of my apparatus as a whole.
Figure 2 is a sectional end view of the same.
Figure 3 is an end elevation of the apparatus shewing the distributing
mechanism.
The same letters of reference indicate similar parts in the several figures.
My improved motor comprises in principle two convergent cylindrical parts a¹ a²,
the pistons 6 6 of which travel in the same direction and actuate the driving
shaft c.
The explosive mixture is admitted to the explosion chambers by any suitable
device; its ignition is effected in the usual manner, either by igniters raised to
incandescence or by means of an electric spark.
The distribution is effected in the following manner:
The rods d d of the inlet valves are raised alternately by the extremities of
bell-crank levers el e pivoted at f1 and 2 respectively to the rods g' g² to which a
reciprocating motion is imparted by means of the connecting rods h¹³.
These latter are driven by the excentrics respectively which are arranged at
an angle of 180° upon an intermediate shaft j.
This shaft is driven by the shaft c by means of toothed wheels k, Z which are in
the relation of 1 to 2 so that the intermediate shaft j makes only half a revolution
for each complete revolution of the shaft c.
This arrangement is regulated in the following manner:
The shaft c imparts its rotary motion to a governor o, of any suitable description,
which acts upon a lever p pivoted at p'. This lever p actuates by means of a
vertical rod gan horizontal bar terminating in a T-shaped portion.
Under these conditions, if the speed of rotation of the shaft c increases the balls
of the governor separate, the lever p acts upon the vertical rod q and the horizontal
bar advances in such a manner as to stop the extremities of the bell crank levers e¹, e
as they rise and prevent the latter from acting upon the corresponding rod d¹ d² of
the inlet valve.
The admission of the explosive mixture is thus interrupted until the speed of the
shaft c again becomes normal, for when this has taken place the balls of the
governor again approach each other, the vertical rod q moves back bringing with:
it the horizontal bar r.
The shaft c carries a fly wheels of a special kind which forms also an engaging
sleeve, acting upon a conical pulley t fixed upon a shaft u which communicates the
motion so imparted to it to the different parts to be actuated.

page_text: Engagement and disengagement are effected by imparting a motion of translation
to the shaft u.
The shaft c carries at its free end a crank or handle by means of which the motor
can be started.
It will of course be understood that I may modify the form, dimensions and
accessory arrangements of my improved motor, according to the different purposes
for which it is intended.
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 :-
-
The improved form of petroleum gas or the like motor more particularly
characterised by the special arrangement of the fly-wheel, which at the same time
forms an engaging sleeve, by the method of regulating the distribution and the
control of the pistons; both as a whole and in its different parts substantially as
above described for the purpose specified with reference to the accompanying
drawing.
HASELTINE, LAKE & Co.,
45 Southampton Buildings, London, W.C., Agents for the Applicant.