'Auto-Thermos' pressure cooker, 1929.
Image number: 10313933
The cooker is of insulated cast aluminium, with a lid secured by a removable yoke, and has an Easiwork pressure gauge. A spring-loaded piston acts as a pressure regulating and warning device. The cooker's airtight structure creates high pressure and allows water to go beyond its boiling point. This leads to food cooking more quickly.
- Image number:
- Science Museum/Science & Society Picture Library
- Date taken:
- 20 October 2003 14:32
- Image rights:
- Science Museum