Description | Item 1: Notes on centrifugal blowers, 1955 Item 2: Product guide re control and installation of gas boosters and compressors, 1962 Items 3-6: Printed material re Bryan Donkin Company, including booklets describing the firm, publications aimed at employees, health and safety literature etc., c1970s Item 7: ?Data manual, 1990s Item 8: ?Cuttings from technical publications, 20th Cent Item 9: ?collection of working instructions, 20th Cent Item 10: ?Compressors boosters governors, 1953 Item 11: Product guide for jet booksters and gas control, 1970s Item 12: Expenditure and extension requests, 1980s Item 13: Report on bearing failures, c1980s-1990s Item 14: ?Gas graphs, 20th cent Item 15: see D1851/Box/6 |