Journal of the Association of Engineering Societies (1881)
Association of Engineering Societies (U.S.) · New York, [etc.] Board of Managers · leaf 135
ry processes may be taken as representative. The theory underlying the Rueping process, in brief, is to make use of the expansion of the air introduced in the cells of the wood to force out a great deal of the surplus oil which has not been actually taken up by the wood itself when the pressure is… … Interior view of Springfield tie treating- plant showing' relative posi- tions of charging tanks, treating cylinders and emptying tank. left in the ties. Some roads to-day are getting a thorough pene- tration and leaving in the tie an amount of oil equivalent to but five pounds per cubic foot of…
Engineering
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