Manual of recommended practice for railway engineering and maintenance of way (1905)
American Railway Engineering and Maintenance-of-Way Association · Chicago, Ill. : The Association · leaf 55
.......5 in. Diameter of hole in rail to be i^sii- larger than diameter of bolt used. The punching in splices to be alternately oblong and round, to permitstaggering bolts in rail, high enough to allow it without flange interfer-ence. The round hole (diameter) to be 1*6-i- larger than the… … STANDARD DRILLING FOR SIX-HOLE SPLICE.
Railroad engineering · Railroads
Internet Archive · Northeastern University Library · Public Domain Mark 1.0. Free to use for anything.
