Handbook of construction plant, its cost and efficiency (1914)
Dana, Richard Turner, 1876-1928 · Chicago, The M. C. Clark Publishing Co. · leaf 533
Right 8 12 225 21.00 21V s 12 Left 8 12 225 21.00 21V s 12 Symmetric 8 12 220 23.10 21V s 12 3 way 8 12 350 50.40 21V s 16 Right 8 12 310 23.10 2iy 5 16 Left 8 12 310 23.10 21V s 16 Symmetric 8 12 300 25.20 21V i 16 3 way 8 12 460 54.60 Note.—All material for 21% gauge of track is for… … Fig. 242a. Standard Bail-Bearing Turntable. DEPRECIATION. Rails in general lose value from the following causes: 1. Through loss of weight due to corrosion. 2. From becoming bent and unfit for smooth operation. 3. From the weakening effect of attrition or wear. The first of these causes depends…
Contractors' operations · Building
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