Pneumatic machine by Otto de Guericke & Hawksbee
Vacuum pump or Pneumatic machine invented by Otto de Guericke, Mayor of Magdebourg (Germany) in 1650. "...Originally designed with one cylinder, but the English Physician Hawksbee adapted it to a 2-cylider machine, making it easier to use..." ( A. Ganot, 1870).
MarqueMachine pneumatique de Otto de Guericke et Hawksbee
MarqueMachine pneumatique de Otto de Guericke et Hawksbee