Lake ship yard methods of steel ship construction (1907)
Curr, Robert · Cleveland : The Marine review · leaf 171
Fig. 174. CHAPTER XII THE ADVANTAGES OF MOLD WORK The greatest advantage derived from the mold system is the con-tinual working of the machinery in the punch shop from the beginningto the launching of the vessel. This cannot be accomplished on asingle vessel by the old method of lifting the work… … Fig. 172. Where two or three vessels are building at one time the punch shop tools may be kept going continuously, but otherwise on the old system. The despatch of the building of a vessel depends entirely-on the output of the punch shop and when six men can furnish work for 13 STEEL SHIP…
Naval architecture · Ships, Iron and steel
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