Year: 1896

page_text: 1, ARTHUR PAGET of 2 Harcourt Buildings, Temple in the City of London,
Barrister-at-Law, do hereby declare the nature of this invention to be as follows:-
My invention has reference to fly wheels for motor cars and its main objects
are :-
In the case of electric motor cars to avoid having to carry a heavy fly wheel in
those cars which carry their own engine for recharging the cells.
In the case of oil or explosion motor cars to utilize the fly wheel as a reservoir for
the water for cooling the engine and to provide for cooling the water by means of the
fly wheel.
For the purpose of my invention 1 construct the fly wheel of a thin cylindrical shell
of copper or other material adapted to be filled with water and which may either be
divided into chambers or compartiments or fitted with a vane or vanes so as to ensure
the water partaking of the movement of the fly wheel, so that when the wheel is
charged it is sufficiently heavy to serve as a fly wheel while on the other hand when it
is empty the wheel adds little to the weight of the carriage. This is of great
advantage in the case of electric motor cars which carry their own engine for
recharging the cells because the fly wheel can be empty while the car is travelling,
and be filled with water from any available source when the engine has to be put into
operation to recharge the cells.
For oil or explosion motor cars the fly wheel is kept charged with water and serves
as the reservoir from which the water for cooling the engine is obtained the circulation
of the water being maintained in any suitable manner. A convenient way is to cause
the water to circulate from the fly wheel to the cylinder through the crank shaft and
bearings. Holes are bored through the crank shaft communicating with the interior
of the fly wheel and suitable connections are made with the water ways in the crank
shaft through the bearings fitted with stuffing boxes. However little water there may
be in the wheel, such water will by centrifugal action be found at the rim and
consequently the connections should be adapted and arranged so as to collect the water
at the periphery. The return pipe by which the water is collected is so arranged as
not to partake of the movement of the fly wheel, being carried on a bearing at the
outer side of the fly wheel fitted with a stuffing box. The circulation of water will
be set up by the movement of the wheel and will cease when the engine stops. The
outer surface of the fly wheel is preferably corrugated or otherwise formed so as to
increase as much as practicable the amount of surface exposed to the air with the
object of cooling the water within the wheel. Or with the same object the fly wheel
may be built with tubes somewhat like a tubular boiler or be otherwise constructed
so as while serving as a water reservoir to provide as great a surface as practicable
exposed to the air.
J. C. MEWBURN & ELLIS,
5 and 56 Chancery Lane, London, Chartered Patent Agents.

page_text: sufficiently heavy to serve as a fly wheel, while on the other hand when it is empty
the wheel adds little to the weight of the carriage. For oil and other explosion
motor cars the fly wheel is kept charged with water and serves as the reservoir from
which the water for cooling the engine cylinder is obtained. The cooling water is
caused to circulate from the fly wheel to the cylinder and back from the latter to the-
fly wheel again, the heated water from the cylinder being cooled in its passage through.
the fly wheel and being restored in its cooled state to the engine cylinder again. In
the arrangement shown the heated water from the engine cylinder (not shown).
returns to the fly wheel 1 through a water way 5 bored through the crank shaft 3 so as
to communicate with the interior of the fly wheel 1. The water way 5 in the crank-
shaft communicates through the inside crankshaft bearing 6 (which is fitted with
leather packings 7) with the water inflow pipe 8. The return pipe 9 by which the
cooled water is collected at or near the rim of the wheel (where the water is driven
by centrifugal action) to be returned to the engine cylinder is arranged so as not to.
partake of the movement of the fly wheel 1. It is therefore stationary and is carried
in and passes through a bearing 10 on the outer side of the fly wheel which is fitted
with a stuffing box 11. This pipe 9 is preferably of double convex section so as to
offer the least resistance to the water when the wheel is in motion. The circulation
of the water indicated by arrows in the figures is set up by the movement of the wheel
and ceases 'when the engine stops. In cases where other cooling devices are.
employed or where the circulation of the cooling water is obtained by other means the
stationary pipe is omitted. The vanes will then extend across the whole internal
width of the hollow fly wheel so as to carry round the total charge of water contained
within it.
The outer surface of the fly wheel is shown as smooth but it is preferably
corrugated or otherwise formed so as to increase as much as practicable the
amount of surface exposed to the air with the object of cooling the water within the
wheel.
Although the fly wheel 1 is shown fixed on the crank shaft 3 the fly wheel may be
advantageously geared by any suitable gearing to the crankshaft or other moving part
so that it may rotate at a higher speed. By this means the requisite momentum may
be obtained with a lighter and smaller fly wheel.
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 :-
1. For motor cars, a fly wheel consisting of a hollow cylindrical shell of sheet
metal, adapted to be charged with water and so constructed as to ensure the water.
partaking of the movement of the fly wheel, substantially as and for the purpose
described.
2. For motor cars, a fly wheel of the kind referred to in the preceding claim,
fitted with one or more internal vanes or partitions, substantially as and for the
purpose described.
3. In a motor car having an internal combustion engine, a fly wheel of the kind
referred to in the preceding claim, fitted with water circulating pipes which are
connected with the cylinder of the engine, substantially as and for the purpose
described.
4. The water charged fly wheel, constructed, arranged and operating substantially
as hereinbefore described and shown in the accompanying drawings for the purpose.
set forth.
1 1907
J. C. MEWBURN & ELLIS,
55 and 56 Chancery Lane, London, Chartered Patent Agents..