The little gold mine. Conklin's handy manual of the mechanical arts and house plans .. (1889)
Conklin, [George W.] [from old catalog] · Chicago, Laird & Lee · leaf 48
es there will certainly be evolved one practicablemethod. One system uses hot water, which is forced though,pipes, another hot air. One scheme is to use pressure, andanother to use an exhaust. The mechanical difficulties in theway cannot be easily overcome. It has been estimated thatit will cost… … 48SWITCHING FROM THE ENGINE CAB. A device that will enable the engineer, from his cab, toswitch his locomotive at pleasure, while the conductor onthe caboose or rear car closes the switch again^ would surelybe a novelty in railroading, amounting to a revolution. Yeta Cleveland inventor claims to…
Industrial arts · Workshop recipes · Architectural drawing
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