ClipArt ETC
A pump for compressing, removing, or forcing a flow of air.

Air Pump

A pump for compressing, removing, or forcing a flow of air.

Sprengel's vacuum pump. c d is a long glass tube. A is a funnel, R is a receiver, B is a flask and H is a dish. This vacuum pump was invented by Hanover native Hermann Sprengel in 1865

Vacuum Pump

Sprengel's vacuum pump. c d is a long glass tube. A is a funnel, R is a receiver, B is a flask and H…