Discoveries and inventions of the nineteenth century (1905)
Routledge, Robert · London : G. Routledge and Sons · leaf 127
ng them with an approach to the precision whichis now obtained. The kind of general interest which attaches to the tools we have alreadydescribed is not wanting in yet another class of machine-tools, namely,those employed in converting timber into the forms required to adapt itfor the uses to which… … FlG. 37.—Circulat Saw. plicity in these respects does not prevent them from showing the advan-tages of machine over hand labour. Everybody is familiar with the up-and-down movement of a common saw, and in the machine for sawingbalks of timber into planks, represented in Fig. 36, this reciprocating…
Inventions
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