Sprengel type mercury vacuum pump, unsigned, German, 1919-1929 Sprengel type mercury vacuum pump 1919-1929
Vacuum pump used by Glaxo at two pilot plants at their Greenford site during 1956-1970 and 1970-1994 for new drug development. Some of the principle drugs developed and marketed by GlaxoWellcome in which this pump would have played a part in the R&D process include: Becotide (asthma drug which received the Queen's Award; Zinacef (antibiotic); Fortum (third generation inhectable antibiotic which received the Queen's Award); Zinnat (oral antibiotic which received the Queen's Award); Flixotide (asthma). The pump was refurbished by APM Electro Mechanical Services Ltd. Vacuum Pump used by Glaxo circa 1920
Single stage vacuum pump by Burckhardt Engineering Works, Basle, Switzerland, 1951 Single stage vacuum pump by Burckhardt Engineering Works 1951
Coloured sectional drawing of Holweck's molecular vacuum pump, 1925-1931 Coloured sectional drawing of Holweck's molecular vacuum pump 1925-1931
Coloured sectional diagram, pen and ink, of early statical mercury vacuum pump, made at the Science Museum, London, 1928. Coloured sectional diagram 1928
Coloured sectional diagram of Gaede's original mercury vapour pump, 1915 Coloured sectional diagram of Gaede's original mercury vapour pump 1915
Coloured diagram showing arrangement for exhausting a large wireless valve, by Science Museum Drawing Office, South Kensington, London, 1927. A Herbert McLeod vacuum gauge is shown for measuring pressure. Coloured diagram showing arrangement for exhausting a large wireless valve 1927
Coloured sectional diagram of Langmuir's original mercury vapour pump, 1916 Coloured sectional diagram of Langmuir's original mercury vapour pump 1916
Complete educational high vacuum pumping equipment, model 2SC20A, Serial No. 11579, two stagerotary pump fitted with Solenoid Air Admittance valve, by Edwards High Vacuum Ltd, Manor Royal, Crawley, Sussex, England, 1955-1968. Complete educational high vacuum pumping equipment 1955-1968
Glass Gaede mercury diffusion pump, (3 pieces), unsigned, European, 1915-1925 Glass Gaede mercury diffusion pump 1915-1925
Sprengel's air pump (single form) by E. Cetti, 38 Brooke Street, Holborn, London, England, 1880-1885. Fitted with single fall with side flask near top connected by rubber tube. Used by the Normal School of Science part of thee Department of Science and Arts, South Kensington, London, later the Royal College of Science then Imperial College (see note). Sprengel's air pump (single form) by E. Cetti 1880-1885