Tables for platelayers, compiled from the formulæ in the work on switches and crossings |
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Tables for Platelayers: Compiled from the Formulae in the Work on Switches ... William Donaldson Visualização completa - 1871 |
Tables for Platelayers: Compiled from the Formulae in the Work on Switches ... William Donaldson Visualização completa - 1871 |
Tables for Platelayers: Compiled from the Formulae in the Work on Switches ... William Donaldson, (An Prévia não disponível - 2015 |
Termos e frases comuns
34 inches branch line curves Branch Roads CROSS-OVER Branch Roads Curving c₁ c₁₁ c₁₂ c2 feet c2 for cross-over c²=cs chains radius Charing Cross clearance at heel Clearance at point cr₂ Cross-over Roads Curving in opposite Distance of point F. N. SPON fast point JUNCTIONS fast point Thickness formulæ GAUGE greatest and least H₁ cm H₂ c² H₂ cm H₂ cr₁ heels of Switches Interval between heels Least value Length of splay line in chains line is curved line is less line is straight Numbers opposite Curving opposite direction Plate POCKET-BOOK point from point point of crossing point of fast R+r feet radius is less radius of branch radius of main Rr R+r set of crossings siding road splay of fast Sum of clearance switch and thickness Switches and Crossings TABLE VII.-1 FT Thickness at point thickness of top THREE THROWS top flange Clearance values of c,2
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