It is thus discharged in lines so nearly tan-gential to the periphery, and at a relativespeed so nearly equal to the actual motion ofthe latter, that its momentum is very trifling. This wheel was patented on the 25th ofNovember, 1855. For further information, ad-dress the inventor and patentee,… … The ordinary head and tail blocks mountedon the carriages of saw mills are adjustableby hand, and their operation requires twomen, or if only one is employed, he musttravel at each setting of the log, from oneend to the other of the carriage, and adjusteach end separately. There are automatichead…
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