Casgliadau Arlein

Content summary - folder containing 15 booklets and information sheets relating to products/machinery manufactured by Dowty Mining Equipment Limited. Titles include - The Miracle of Mechanisation in the Coal Mines, Longwall Continuous Mining, Dowty Roofmaster Mark 1B Self-Advancing System, Dowty Taurodyne Transmission, Dowty Standard Hydraulic Props Type PA 2700, Dowty Duke Hydraulic Props, Dowty 50 Ton Hydraulic Chock, Dowty Roofmaster MK 1C, Dowty Roofmaster MK 1B, Dowty Hydraulic Props, Dowty 'Rodjo' Shield, Dowty Hydraulic Dynamometer, Dowty Hydropost, and The Dowty Duchess 20 Ton Prop.