Title
Hot Filament Pyrometer
Optical Pyrometer
Identifier
ABDNP:200592a
Description
Black conical shaped plastic casing with window showing temperature scale ranging from 800 to 1250 degrees Celsius. Also through window can be seen UK patent number; "636544", the US patent number; "2750837" and the German "patent pending" notice. An adjustable eyepiece and objective are at either side of the plastic structure. Patent dated 03/05/1950 "Improvements in or related to optical pyrometers" relating to the disappearing filament pyrometer.
Date
1950-1960
Format
length 282mm, diameter 160mm
Plastic, Glass, Metal
Creator
EVERSHED