Rotary "drum" pump

Rotary drum' pump, patented by Johnson in 1890'

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Rotary drum' pump, patented by Johnson in 1890'
Science Museum Group
© The Board of Trustees of the Science Museum

Rotary "drum" pump, patented by Johnson in 1890

Details

Category:
Pumping Machinery
Object Number:
1891-171
type:
pump
credit:
Johnson, R.