Compton, Alfred G. (Alfred George), 1835-1913 · New York : J. Wiley & Sons · leaf 67
WELDING. A TONQVE-WELB, 53 giving it the appearance shown in Fig. 42, a. This piece is now to be split and opened, as … Fig. 41. Fig. 42. shown in Fig. 42, b, to a depth equal to the length of the wedge. It is important that the opening should be of this depth, otherwise a Fig. 43. Fig. 44. portion of the reduced thickness of the wedge will be left exposed, and the piece, when finished,
Metal-work
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