A vacuum pump is a device that removes gas from a sealed volume in order to leave behind a partial vacuum. The first vacuum pump was invented in 1650 by Otto von Guericke. This 19th century pump is made of brass.
Property of the W&L Physics & Engineering Department
“Vacuum Pump,” Digital Exhibits at Washington and Lee University Library, accessed September 22, 2017, http://omeka.wlu.edu/items/show/216.