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Vacuum pump by R.B. Bate

1780-1820

Double rack type vacuum pump by a London workshop

Toepler Mercury Pump, c 1905

1905
Vacuum pump, Great Western Railway, sectioned pump from Driver's improvement class, Swindon.

Vacuum pump, Great Western Railway

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
Leslie's apparatus for freezing water in vacuo, J.J. Griffin and Sons, Garrick Street, London, England 1880. Consisting of double barrel air pump with glass receiver, porous basin and acid pan

Leslie's apparatus for freezing water in the vacuum, 1880

1880