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The car wheel; giving the results of a series of investigations (1907)
Fowler, George Little, 1855-1926 · Pittsburgh, Pa., Schoen Steel Wheel Co. · leaf 74
No. 59. Structure at Edge of Tread. No. 60, Slag at Center of Tread. MICROPHOTOGRAPHS OF SHELLED-OUT WHEEL E. 50 DIAMETERS. 69 i?^ t^ V_ A*^ fH C<-^^^.. > 1 - * -:\,^iic.: cSJi^ ^^^VA? ^K >J^%^ .^^ ^\2. y^n^v^v^ * T^ ►^, ^ r.^^,*^ ! -^4i5>: •^ -A.w.-^ X fr ■•am ^ y^ ■ ■ X v^^^ -^r^ No.… … ^^i^ ■^f^\ No. 6j. Structure % In. Below Tread. No. 64. Structure % In. Below Tread. MICROPHOTOGRAPHS OF SHELLED-OUT WHEEL F. 50 DIAMETERS.Railroad cars
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