 | Walter Loring Webb - 1903 - 784 halaman
...rejection of all rails from any blow will depend upon the results of the tests thereof. HEAT TREATMENT. The number of passes and speed of train shall be so...requires a shrinkage allowance at the hot saws of 6 inches for 85-lb. and GJ inches for 100-lb. rails, and no artificial means of cooling the rails shall... | |
 | Walter Mason Camp - 1903 - 1238 halaman
...Pennsylvania RR specifies 5i ins. and for 100-lb. rails 5£ ins. The Am. Ry. Eng. & MW Assn. recommends that "The number of passes and speed of train shall be so regulated that on leaving the rolls at final pass the temperature of the rail will not exceed that which requires a shrinkage allowance at.... | |
 | Walter Mason Camp - 1903 - 1256 halaman
...began to introduce into their specifications what is known as the shrinkage allowance clause, requiring that on leaving the rolls at the final pass the temperature of the rail should not exceed that which requires a certain shrinkage allowance at the hot saws, and that no artificial... | |
 | 1907 - 334 halaman
...requirement, all the rails of the blow which they represent will be accepted. Finishing Temperature. — (4) The number of passes and speed of train shall be so...exceed that which requires a shrinkage allowance at the hot-saws, for a 3<>ft. rail of TOO Ib. section, of 6 11/16 in., and 1/16 in. less for each 5 Ib. decrease... | |
 | 1904 - 1318 halaman
...either of these latter tests fail, all the rails of the blow which they represent will be rejected. The number of passes and speed of train shall be so...pass the temperature of the rail will not exceed that wiiich requires a shrinkage allowance at the hot saws of 6 in. for 85-lb., and &i in. for 100-1 b.... | |
 | 1908 - 634 halaman
...to go Ib 043 to 0.53 0.80 to 91 to loo Ib 0.45 to 0.55 0.84 to As to shrinkage, it is provided that the number of passes and speed of train shall be so...leaving the rolls at the final pass, the temperature of rails of sections 75 Ib. per yard and heavier will not exceed that which requires a shrinkage allowance... | |
 | Walter Mason Camp - 1904 - 1240 halaman
...Pennsylvania RR specifies 5$ ins. and for 100-lb. rails 5| ins. The Am. Ry. Kng. & MW Assn. recommends that "The number of passes and speed of train shall be so regulated that on leaving the rolls at final pass the temperature of the rail will not exceed that which requires a shrinkage allowance at... | |
 | American Society of Civil Engineers - 1906 - 742 halaman
...ingots, the defect known as piping shall be prevented, the above shearing requirements may be modified. The number of passes and speed of train shall be so...which requires a shrinkage allowance at the hot saws, for a 33-ft. rail of 100-lb. section, of 6T7ff in., and ^ in. Itss for each 5-lb. decrease of section.... | |
 | American Street and Interurban Railway Association - 1907 - 826 halaman
...metal on fracture. COMPOSITION. (8) The chemical composition of the rail shall be as follows for 1907: HEAT TREATMENT. (9) The number of passes and speed...saws of 5.75 inches for 8o-lb., and 5% inches for lOO-lb. rails, and no artificial means of cooling shall be used between the final pass and the hot... | |
 | American Railway Engineering and Maintenance-of-Way Association - 1907 - 308 halaman
...The report of the drop test shall state the atmospheric temperature at the time the test was made. 5. The number of passes and speed of train shall be so...which requires a shrinkage allowance at the hot saws for a 33-ft. rail of loo-Ib. section of 6 % in., and %,-m. less for each 5-Ib. decrease of section,... | |
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The number of passes and speed of train shall be so regulated that on leaving the rolls at the final pass the temperature of the rail will not exceed that which requires a shrinkage allowance at the hot -saws, for a 30-ft. 
