Double barrelled air pump, with glass receiver plate

Made:
1866-1911
maker:
Alfred Apps

Double barrelled air pump, with glass receiver plate, by Alfred Apps, London, England, 1866-1911 (see note)

Details

Category:
Vacuum Technology
Object Number:
1985-2054
Materials:
brass (copper, zinc alloy), cork, glass, mahogany (wood), paper (fibre product), resin (unspecified), steel (metal) and tin (metal)
Measurements:
overall (with winding handle): 470 mm x 570 mm x 380 mm, 20.54kg
credit:
Wellcome Trust