Show LOCOMOTIVES' LOCOMOTIVES TEMPERATURE The temperature of the fire of a moving moving mo ing locomotive has been at last determined determined determined deter deter- mined to bo be O degrees at a speed speed- Of t thirty one e miles an hour and degrees Fahrenheit at nineteen miles The draft and the temperature are greater than when the engine Is at I rest but it was found that the measurements which were made In Germany German Germany could could be effected while running by using a Le Cha- Cha teller pyrometer with a special galvanometer galvanometer galva galva- having haYing a I compensator and made to retain sensitiveness and accuracy in severe Jolting The chief difficulty was to expose the pyrometer to the greatest heat and yet t shield It from the direct flame There was risk of fusing the platinum Iridium wires and this was only avoided by placIng placing placing ing the pyrometer high In the fire box In a tube of chrome steel encased In a protective e coating of fire tire clay |