Improvements in or relating to signalling apparatus particularly for use in connection with kites or balloons

摘要

570,888. Signalling. INTERNATIONAL MARINE RADIO CO., Ltd., WOODS, H. THORPE-, and HARRISON, D. H. Jan. 21, 1944, No. 1205. [Class 118 (ii)] [Also in Group XL] The twinflex leads 1 from an electric signalling lamp 2, which is suspended by a hook 4 from a mast-head, kite or balloon, are connected to a plug 3 which may be plugged into a signalling unit comprising a battery &c. and a signalling key or, when the plug is withdrawn from the signalling unit, the blades 8 may be pressed together and secured to the aerial terminal of a wireless transmitter or receiver, whereby the leads are connected together in parallel and serve as an aerial. Alternatively instead of withdrawing the plug a changeover switch may be provided to connect the leads in series to the signalling unit or in parallel to the wireless set. The leads may be stayed by a line 5.