Portable hand pump for air samples
1950-1959
Air Pump valve, Flexible Type, mounted on board
Air Pump valve, Multiplex Type, mounted on board
DYMAX air pump
1970-1980
Motorcycle pump
1928
Air Pump Slideway for Triple-Expansion Marine Steam Engine
1924-1928
Air Pump Bucket and Nut
Air Pump Components for Triple-Expansion Marine Steam Engine
Air Pump Components for Triple-Expansion Marine Steam Engine
1924-1928
Air Pump from Triple-Expansion Marine Steam Engine
1924-1928
Bell in vacuo demonstration,1820-1856
1820-1856
Reconstruction of the Boyle-Hooke air pump
1659
Model of Leblanc air pump
1909-1910
Air pump rod complete with brasses
Air Pump Body with Foot
Air pump bucket, rod, cap and pin and cover with gland complete
Air Pump Bolted to Bearing Timber
Air pump cylinder for beam engine
1870
Air pump cylinder for beam engine
1870