BigWallop explained on 18/08/2009 :
"Bob Minchin" wrote in message

Years ago, there was a prototype electrical generator shown on TV -
possibly Tomorrow's World etc.

It was a low ramp on which one wheel of a vehicle was driven and parked.
In the ramp was a pair of rollers driving a generator. The other vehicle
wheels were chocked. With the car in gear and at tickover speeds a
useful amount of power was generated.
I seem to recall the demonstration was a farmer going out to repair a
gateway and being able to run an electric drill to assist the repair.

Does anyone know if this was ever taken to a commercial product and have
any references to it?

I have an application where something like this would be a possible
solution.

Thanks in Advance

Bob


Wouldn't it be easier to buy a 12Vdc appliance and plug it into the cigar
lighter socket. There are huge amounts of things that have been specially
designed to run like that.

That gave me an idea....

Caravans use 12v DC water pumps, some of them designed to work inline
with the pipe, others intended to fit at the dipped into the water end
of the pipe. Flow rates are enough for a shower, but lifting height
will be limited - say around two meters.

--
Regards,
Harry (M1BYT) (L)
http://www.ukradioamateur.co.uk