Don Mills, Ont. : Southam-MacLean Publications · leaf 35
e not identified so inti-mately with the work of the practical woodworker,but enough has been said to convey a general idea ofthe more important phases of piano-making. The ac-companying illustrations will supplement our informa-tion. In the Xodon process of seasoning timber by elec-tricity, the… … Action regulating and hand-polishing at the Sherlock-Manning piano factory. trodes for the introduction of an alternating currentwhich is passed for ten hours or so. The effect of thecurrent is to produce chemical changes in the celluloseand the sap, rendering them impervious to decay. Fur-ther,…
Furniture industry and trade · Woodworking industries
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