. Baltimore and Ohio employees magazine . reated they would last twentyfive years and probably give better andmore economical service than concreteor any other substitute. eluding crude oil. paving oil, icfinc dcoal tar, and oils riiported as carbolineum. Api)roximately 135,000,000 ties arepurchased annually by railroads, andalthough nuich progress has been made intie treatment to date, but 44,000,000 weretreat(Hl in 1914, showing clearly that numymore ties can be treated to advantage. The average life of untreated ties inthe United States is reported to beseven years. This includes all kinds
. Baltimore and Ohio employees magazine . reated they would last twentyfive years and probably give better andmore economical service than concreteor any other substitute. eluding crude oil. paving oil, icfinc dcoal tar, and oils riiported as carbolineum. Api)roximately 135,000,000 ties arepurchased annually by railroads, andalthough nuich progress has been made intie treatment to date, but 44,000,000 weretreat(Hl in 1914, showing clearly that numymore ties can be treated to advantage. The average life of untreated ties inthe United States is reported to beseven years. This includes all kinds ofwood, long lived as well as short lived,and also takes into consideration in every section of the ties under the same conditionswill last twelve to twenty years. If allwere treated, three to twenty cents pertie per year would be saved, or in dollarsand cents the saving would be from fourto twenty-seven million dollars annually. Of the various forms of structuraltimber, cross ties are most subject, to. LOADING PLATFORM AT THF TIMRER IiAM Over 39,000,000 ties were treated bycreosote or zinc chloride in 1914, approxi-mately one-half of the total i)eing ic-ported under each class. Zinc-creosote emulsion was used U>vtreating nearly two million cross ties,and over two million were impregnatedwith miscellaneous preservatives, in- severe mechanical wear, and the lossfrom this cause is estimated at fifteenl)ei cent, of the total nuinlx-r of tiesanmially destroycul. Approximately seventy-five per rr\ all ties i)urchase(l are hewed. Tieclaim is made that hewed ties are moredurable than sawed ties because thev 32 THE BALTIMORE AND OHIO EMPLOYES MAGAZINE shed water better. Weiss says:Nothingis known by the United States ForestService to substantiate this if untreated hewed ties should bemore durable than sawed ties, thisadvantage disappears when the ties aretreated. There are many serious objec-tions to the use of hewed
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbaltimo, bookyear1912
