DEVICE TO LOCATE TRAPPED PERSONS
(Rec. 9.30 p.m.) LONDON, April 28. A lieutenant of the Polish Army and a Dunfermline engineer have devised a wristlet broadcasting set to help in rescuing those trapped from wreckage. The Home Office is testing the device, which sends out oscillations on a fixed wave-length by a slight pressure on a celluloid strip. The oscillations can be picked up by an ordinary portable radio and rescuers equipped with a direction-finding coil can locate trapped persons.
The broadcaster weights six ounces and is three inches in diameter. It operates for 44 hours on a small dry battery. It can be mass-produced for five shillings.
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Bibliographic details
Southland Times, Issue 24422, 30 April 1941, Page 5
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108DEVICE TO LOCATE TRAPPED PERSONS Southland Times, Issue 24422, 30 April 1941, Page 5
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