Dodgson's Double Headed Ship Pump

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No scale. Patent showing the double headed ship pump with details of the piston, pumps and pipes as invented by George Dodgson.

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ID:	ZAZ6846.2
Type:	Print
Display location:	Not on display
Date made:	Possibly dated 1800-1801
Credit:	© Crown copyright. National Maritime Museum, Greenwich, London
Measurements:	Sheet: 486 mm x 305 mm
Parts:	Dodgson's Double Headed Pump as fitted to Janus (1796) (Technical drawing) Certificates respecting Dodgson's Double Headed Pumps (Print) (ZAZ6846.1) Dodgson's Double Headed Ship Pump (Print) (ZAZ6846.2)