Engraving depicting Hermann Sprengel's vacuum pump. Hermann Sprengel (1834-1906) a German-British chemist. Dated 19th Century Stock Photo - Alamy
High Vacuum With Mercury And Glassware | Hackaday
A vacuum pump invented by Hanover-born chemist Hermann Sprengel in 1865. This pump could be run continuously and without any supervision to achieve th Stock Vector Image & Art - Alamy
Will a Sprengel Pump Work? - Fusor Forums
The Liquid Bead Gas Pump (Bead Pump), or The Reverse Sprengel Pump - [Oxygen Not Included] - General Discussion - Klei Entertainment Forums
Will a Sprengel Pump Work? - Fusor Forums
Mercury vacuum pump - Himetop
Heinrich Geissler: Pioneer Of Electrical Science and Vacuum Technology [Scanning our Past]
Automatic mercury vacuum pump | American Journal of Science
1 The History of Vacuum Science and Vacuum Technology
Scientific amusements . receiver. Manyexperiments are made with the assistance of the air-pumpand receiver, though the air is never entirely exhaustedfrom the glass. The Sprengel air-pump is used to create an almostperfect
Edison's vacuum technology patents
Mercury Pumps For Producing Vacuums 19th Century Stock Illustration - Download Image Now - 1870-1879, 19th Century, Airtight - iStock
2yr.net - Antique & Vintage Light Bulb Collection Museum - History Of The Incandescent Lamp - By John W. Howell And Henry Schroeder (1927) Chapter 4: The Vacuum, Getters and the Gas Filled Lamp
Edison's vacuum technology patents
The Sprengel Pump Is A Vacuum Pump That Uses Drops Of Mercury Falling Through A Smallbore Capillary Tube To Trap Air From The System To Be Evacuated Stock Illustration - Download Image
1816 [Menlo Park,] Oct 2d 1879 Changes in [---]a pump in two weeks.1 Combination with Geissler.2 Macleod Guage.3 Cu. tube for ab
Sprengel's Vacuum-pump (commonly Called "Bunsen's Pump"). - Hermann Sprengel - Google Books