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 128
some good hot water and pour it on. The clothwill hold the heat on the pipe, and thaw it out in five min-utes. This holds good in any kind of a freeze, water-wheel,or anything else. NUMBER OF STEAM BOILERS IN NEW YORK.The total number of steam boilers in New York City isnearly 7,000. The volume of… … 127 About seven-tenths of the latent heat are lost through theexistence of natural conditions over which man can probablynever expect to gain control. Two-tenths are lost throughimperfections of mechanism, and about one-tenth is all thatcan be utilized, even in the best engines. So, you see,…
Industrial arts · Workshop recipes · Architectural drawing
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