Leadership

TIMBER PRESERVING PLANT.

Issue 18 and Volume 36.

TIMBER PRESERVING PLANT. The rapid destruction of the great forests of this country has forced upon the railroads a very serious problem in connection with the supply and preservation of timber and outdoor construction, especially ties. Since the supply of timber for this purpose will probably decrease as time goes on, many efforts have been directed to perfecting processes to preserve the ties from insects and decay. The Ayer & Lord Tie company, Chicago, has erected a number of large plants for this purpose in different parts of the country and has placed on exhibition at St. Louis, west of the California and South Dakota gold mines exhibits, between Intramural Railway Stations 12 and 13, a model plant, capable of doing commercial work. The timber being treated is placed in airtight cylinders, where it is first subjected to steam under pressure to remove all air from the pores of the…

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