Fig. 3037.
“This method, though better than the last, is also objectionable; for though there is not equal risk of ’scarf ends’ in the pin, yet the weldings are all on the edge, as in the lower view, in [Fig. 3036], where the section of the crank pin is shown by the dotted circle; and the cheeks of the crank, o o, are thus liable to give way if a heavy strain comes on the crank when at work. The defects arising from this cause are shown in [Fig. 3037], and will be readily recognised by all engineers.
“Third Method.—Considerations such as these have led to the adoption of the third or Lancefield method.
Figs. 3038 and 3039.
