Kirkman, Marshall Monroe, 1842-1921 · New York, Chicago, The World Railway Publishing Company · leaf 320
ther side. This would be a correct guard rail for rigid rail frogs, but for a spring rail frog the guard rail would have to be parallel to the main rail, with a flangeway of one and three-quarter inches for at least nine feet of its length at center of same and well braced its entire length.… … Metal track, Holland "Post" Tie, A. D. 1889, of broken stone when circumstances permit, or good gravel with proper drainage to same, and at least once in five years in the surfacing of the track, slight raising of the same, where possible to be done. All highway crossings should be carefully…
Railroads · Transportation
Internet Archive · Smithsonian Libraries · Public domain (published before 1931). Free to use for anything.
