Cyclopedia of mechanical engineering; a general reference work. Editor-in-chief Howard Monroe Raymond. Assisted by a corps of mechanical engineers, technical experts, and designers of the highest professional standing (1908)
American School (Chicago, Ill.), Raymond, Howard Monroe · Chicago American Technical Society · leaf 405
er in the operationof these furnaces. Experiments have l)een made with almost everykind of fuel. That now universally used is a soft hituminous coalthat will not cake. Steam or power hammers are always u.sed in connection withthese furnaces. The work is too larjje and heavy for manipulationby hand… … Fig. 170. is neatly piled about 200 pounds of small scrap pieces. This materialis then bound to the hoards by wires, and the whole is placed uponthe hearth of the furnace. It is allowed to remain until the wholemass is at a welding heat, \^^len in this condition, the plastic surfacesof the pieces…
Mechanical engineering
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