Instruments and Apparatus Al-SS. ... Also in these latter tests the performance of the cobalt steels was better than either the low- or high-tungsten steels. ... Bureau of Mines, and consisted of a comparative study in the use of pea-size anthracite and bituminous coal without smoke. They involved experimental modifications of the setting, modifications in the method of control of the boilers, and improvement anbsp;...
|Title||:||Mechanical Engineering Magazine|