gas temperature / gas leak detector / gas bag / gas fill / transverse steel angle sections / adequate gas pressure / transverse steel angle section / steel tube / metal pulleys / mm gas pressure / appropriate steel cross-members / gas purity tube / inflated rubber tubes / gas valve / gas purity / heave car / matchless services / steel plate / oil / steel cross-members / Oil metal pulley wheels / gas pressure / Check rubber band counterbalance / rubber band springs / /
Organization
Civil Aviation Authority / Air Council / eta / /
Person
Thomson / Hugh Dowding / /
Position
secretary of state for air / member for supply and research / assistant / /