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This type of transmission seems
to have little connection with gear oils but since this is a method of
transmitting energy in automotive drives, it will be mentioned. It is said that
such a coupling, incorporated in an automatic transmission, is being offered as
optional equipment in Hillman Minx cars. Magnetized iron particles bind two plates
of a clutch to transmit power.
Allied to the above may be what
Biryukov describes as an electromagnetic lubricant. This lubricant used to
transmit mechanical energy by
friction, consists of 30 per cent
of a medium viscosity
oil, 4 per cent of
rosin, 5 per cent of Paratone and
61 per cent of iron carbonyl . The iron carbonyl should have a particle size of
8 to 13 microns.
