Gaede type rotary mercury pump
1916-1926
Cosmos 'Bottle' type vacuum pump
1917-1921
Gear type rotary vacuum pump
1918-1923
Gaede steel slit diffusion pump
1920-1927
Open type liquid air vapour trap and vacuum pump mechanism display
1915-1925
Liquid air vapour trap (enclosed type)
1915-1925
Double barrelled air pump
1801-1900
Fleuss vacuum pump (two cylinders)
1900-1910
Steel diffusion air pump
1915-1925
Hero's fountain apparatus
1770-1820
McLeod's vacuum gauge (imperfect)
1880
Glass ionisation vacuum gauge
1955-1980
Modern glass filter pump
1925-1935
Sectioned Cenco-Hyvac two stage rotary oil pump
1921-1926
Patent 'Geryk' high vacuum pump
1901-1920
Double barrelled air pump
1801-1900
Gaede single stage all-metal pump with accessories
1923-1928
Example to illustrate use of charcoal to produce high vacuum
1917-1927
Bunsen filter pump mounted on board and fitted with mercury gauge
1918-1928
Tate's double acting vacuum pump
1871-1900
Mercury diffusion pump
1960-1969
Double barrel air pump by Moritz Pillischer
1851-1887
Mercurial air pump
unknown date
Single barrel air pump
1871-1900
Brass and steel accessories for air pump
1871-1900
Double barrelled air pump
1801-1900
Oil Free Rotary Vacuum Pump/Air Compressor made by Lacy-Hulbert Division of C.S. Maden & Co. Ltd.
Veeco' brand glass ionisation vacuum gauge
1955-1980
Gaede molecular vacuum pump
1910-1914
Magdeburg hemispheres
1780-1820
Double barrelled air pump
1801-1850
Toepler Mercury Pump, c 1905
1905
Gaede 3-stage metal diffusion pump
1915-1927
Oil Free Rotary Vacuum Pump/Air Compressor
Francis Hauksbee's air pump
Full size coloured sectional drawing of Holweck's molecular pump
McLeod's low pressure gas measuring apparatus
Coloured sectional diagram of Gaede's original mercury vapour pump
1915
Coloured sectional diagram of Langmuir's original mercury vapour pump
1916
Glass globe containing bladder
1801-1900
Schematic drawing
1870-1876
Holweck type molecular vacuum pump by The Mullard Radio Valve Co. Ltd.
1920-1926
Sprengel type mercury vacuum pump
1919-1929
Metal water-jet filter pump (no.15220)
1924-1934
Glass Gaede mercury diffusion pump
1915-1925
Gaede type rotary oil pump
1916-1926
Langmuir type metal vacuum pump part sectioned
1915-1925
Mercurial air pump of the Kahlbaum pattern
Coloured sectional diagram
1928
Coloured diagram showing arrangement for exhausting a large wireless valve
1927