'Wedge' (Temperature Indicator), 1913-1930
Optical pyrometer by 'The Wedge Optical Pyrometer' Company, London, England, patented by A. O. Cochrane, 1913-1930. Temperature range 760-1340°C, Serial No. 516.
- Measurements:
-
overall: 50 mm x 227 mm x 155 mm, ,
- Materials:
- brass (copper, zinc alloy) , glass and steel (metal)
- Object Number:
- 1977-465 Pt1
- type:
- pyrometer (optical) and thermometer
- Image ©
- The Board of Trustees of the Science Museum
