Skip to content
History of Science Museum

Hewitt Regulating Stopcock

Inventory Number 10399


Item type
Object
Provenance
From the Nuffield Department of Anaesthetics, John Radcliffe Hospital.
Physical material
Metal
Dimensions
Height: 96mm Width: 82mm Depth: 136mm Weight: 352g
Inventory No
10399
Accession Number
1998-7

Description

Stopcock and mixing chamber, part of a dental anaesthetic machine. Used for nitrous oxide & oxygen. Main body has scale (pressure?) on a dial with an arm on both sides. Four hollow tubes of various sizes protrude from the main body, one with a metal cross inside, one with a cap. Inscribed on the dial 'George Barth & Co Sole Makers' '54 Poland Street London N.W.' Inscribed on back 'Hewitts Apparatus N2O & O'. Written in black on front '94'.