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Griffin and Sons Double Barrel Vacuum Pump

Specifications

Griffin and Sons Double Barrel Vacuum Pump

Category

Science and Technology

Classification

CHENHALL - Tools & Equipment for Science & Technology - Mechanical T&E - Mechanical Devices - Pump

Object Origin
Manufacturer:

Griffin & Sons

Date Built:

c. 1870

Physical Characteristics

Object Description: Double barrel brass vacuum pump with a clear glass orb mounted to rectangular wooden base. The base has four (4) short legs. A wooden topper with a curved top edge sits on top of the barrels. Attached to the side of the wooden topper is a brass crank with a wooden handle. The glass orb sits above a horizontal brass disc.

Materials:

wood

metal

glass

Measurements: Object:
    Height: 15.5 in, Length: 16 in, Width: 11.25 in
    Weight: 19.8 lbs

Credit

Museum Purchase, 2010.1.3

Display Status

On Exhibit

Griffin and Sons Double Barrel Vacuum Pump

About: Griffin and Sons Double Barrel Vacuum Pump

About: Griffin and Sons Double Barrel Vacuum Pump

Made in London by Griffin & Sons, this 1870s vacuum pump creates a vacuum, or space without matter or air, when the mechanical handle attached to the brass barrels is turned. By drawing the air out of the glass sphere and comparing its weight before and after, the pump could be used to entertain guests or scientifically demonstrate that air has weight.

Additional information

Copyright information

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