Vacuum Pump, Hand Operated

Combition Of Vacuum Pump Syringe And Plate Mounted On A Non-Skid Base. Useful For Creating Vacuum Inside Enclosures Placed On The Pump Plate Such As Bell-Jar And Study The Physical Phenome Related To The Vacuum Thereof. A Metal Barrel Has Piston Mounted On Its One End And The Other End Having A Metal Block On Top Of Which Plate Is Mounted. A Stop-Cock Provided To Facilitate Release Of Vacuum. The Complete Apparatus Mounted On Base For Convenience In Use And Stability. (Air Pump Vacuum On Sheet Metal Base)