Footage of anti-frost fan in use in orchard in Royston, Hertfordshire.
Agricultural Frost Fan, Royston, Hertfordshire.
C/U Blossom on trees. Various shots of a large fan on tripod revolving over the trees. The commentator says the fan works by sucking warm air from out of the sky so as to prevent late frosts damaging the trees in the orchard. Several more shots of the new invention. M/Ss of man making notes from dial readings. More shots of fan.