Improvements in Apparatus for Converting the Reciprocating Motion of a Piston into Rotation of a Flywheel.
Year: 1896

page_text: Date of Application, 27th June, 1896
Complete Specification Left, 26th Mar., 1897-Accented, 8th May, 1897
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Converting the Reciprocating
Motion of a Piston into Rotation of a Flywheel.
We, ALEXIS MOLS, Mechanic, of 18 Avenue Van Eyck, HENRI PAELMAN,
Mechanician, of 50 Rue du Compromis, and WILLIAM FORD SCHMOELE,
Merchant, of 51 Rue Osy, all of Antwerp, in the Kingdom of Belgium, do hereby
declare the nature of this invention to be as follows:-
This invention relates to means of converting the reciprocating motion of a
piston into rotation of a flywheel, without employing a crank, the apparatus being
such that the varying force of the piston throughout its stroke is to a certain
extent compensated.
For this purpose, according to one arrangement, we mount the flywheel at the
side of the cylinder, its axis being central with the cylinder, and its rim having
a flange projecting partly over the cylinder. Within this flange we form on the
face of the wheel three or five cam curves each curving both ways from a point of
the circumference towards the centre of the wheel.
On the ends of the piston rod which projects both ways from the cylinder, we
mount rollers which, running along the cam curves and pressing on them, cause
the wheel to revolve.
According to a modified arrangement, the cylinder is situated outside the
flywheel and has its piston rod projecting only one way towards the centre of the
wheel, and carrying two rollers one at each end of a slot through which the flywheel
shaft passes. In this case there are two symmetrical cam curves on the face of the
wheel, and the rollers pressing on them cause the wheel to revolve.
In both modifications, the piston rods, being subject to lateral strain, move
between guides, and the arrangement of the cam curves being such that as the
piston approaches the extremes of its stroke it acts at a greater radius, its greater
propelling force resulting from this compensates to a certain extent for the
diminished pressure in the cylinder.
Dated this 27th day of June 1896.
ABEL & IMRAY,
Agents for the Applicants.
COMPLETE S
ATION.
Improvements in Apparatus for Converting the Reciprocating
Motion of a Piston into Rotation of a Flywheel.
We, ALEXIS MOLS, Mechanic, of 18 Avenue Van Eyck, HENRI PAELMAN,
Mechanician, of 50 Rue du Compromis, and WILLIAM FORD SCHMOELE,
Merchant, of 51 Rue Osy, all of Antwerp, in the Kingdom of Belgium, 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 means of converting the reciprocating motion of a
piston into rotation of a flywheel, without employing a crank, the apparatus being

page_text: such that the varying force of the piston throughout its stroke is to a certain
extent compensated.
For this purpose, according to one arrangement, of which Fig. 1 is a front view
partly sectional and Fig. 2 is a vertical section, we mount the flywheel V at the
side of the cylinder B, its axis being central with the cylinder, and its rim having
a flange projecting partly over the cylinder. Within this flange we form on the
face of the wheel three or five cam curves C each curving both ways from a point
of the circumference towards the centre of the wheel.
On the ends of the piston rod T which projects both ways from the cylinder, we
mount rollers r which, running along the cam curves C and pressing on them,
cause the wheel V to revolve working a rotary slide valve M on the boss of which
the flywheel is fixed.
According to a modified arrangement, of which Fig. 3 is a front view partly
sectional, and Fig. 4 is a vertical section, the cylinder B is situated outside the
flywheel V and has its piston rod t projecting only one way towards the centre of
the wheel, and carrying two rollers ij one at each end of a slot through which the
flywheel shaft S passes. In this case there is a cam curve C on the face of the
wheel, and the rollers ij pressing on its face K L M cause the wheel to
revolve.
The cam, which is shewn in the opposite position by the dot and dash lines C¹,
is counterbalanced by a weight W fixed to the wheel.
In both modifications, the piston rods, being subject to lateral strain, move
between guides, and the arrangement of the cain curves being such that, as the
piston approaches the extremes of its stroke, it acts at a greater radius, its greater
propelling force resulting from this compensates to a certain extent for the
diminished pressure in the cylinder.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, we declare that what we
claim is :-
Apparatus for converting the reciprocating motion of a piston into rotation of a
flywheel, comprising rollers mounted on the piston rod and acting on curved cam
surfaces so arranged that as the piston approaches the ends of its stroke it acts
with increasing leverage to effect rotation, substantially as described.
Dated this 26th day of March 1897.
ABEL & IMRAY.
Agents for the Applicants.