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Aviation History
1939
1939 - 0964.PDF
MARCH 30, 1939. ADVERTISEMENTS. FLIGHT. 67 L D t- . < 120 J- SIMMONDS HYDRAULIC INDICATORS accurate, even * when the operating ends are iat widely differing temperatures These instruments are based on a unique principle which ensures absolute freedom from errors due to the effect of temperature variations on the transmitting fluid. An ingenious compensating device in the system leaves the bellows free to expand or contract under temperature without causing the slightest movement of the pointer. These indicators, which may record flap position, fuel contents, undercarriage position, etc., are remarkably sensitive and will register accurately movements of ^°. SIMMONDS AEROCESSORIES LTP % GREAT WEST ROAD, BRENTFORD, LONDON SHELL MEX HOUSE, STRAND, W.C.2 IN AMERICA ts AerocesfO'us Inc., ,.„ Avtnue, W-u.- York x'ceptini Simmotidi' Nuis Assoc. Compan\ IN AUSTRALIA Simmondi Aerocessrrit-s Ltd., 152, Bank Street, Melbourne IN FRANCE
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