. The trackman's helper, a handbook for track foremen, supervisors and engineers . , ; 1 A. R. A. Scries A : 80 90100 51/8 15% i6 31/32 iyi6 223/32 IV16 115^2 19/16 45/35J^ f il A. R. B , 80 90 100 415/16 1 255/64 115^213%4145/64 4%6 2Vl6 1 221/32 ri P. S. , 85100 sivis 1%2 il^ ■ 121/S2IIS/16 45/85 21/2 1 243/64 ; It On lines of intensive operation where the avail-able intervals between trains are never more than 25min. and where intervals as low as 12 min. must fre-quently be utilized it is of the utmost consequencethat the preliminary work be done to the last single operatio
. The trackman's helper, a handbook for track foremen, supervisors and engineers . , ; 1 A. R. A. Scries A : 80 90100 51/8 15% i6 31/32 iyi6 223/32 IV16 115^2 19/16 45/35J^ f il A. R. B , 80 90 100 415/16 1 255/64 115^213%4145/64 4%6 2Vl6 1 221/32 ri P. S. , 85100 sivis 1%2 il^ ■ 121/S2IIS/16 45/85 21/2 1 243/64 ; It On lines of intensive operation where the avail-able intervals between trains are never more than 25min. and where intervals as low as 12 min. must fre-quently be utilized it is of the utmost consequencethat the preliminary work be done to the last single operation that can be completed before thetrack is broken must be omitted. The cutting of aclosing rail is entirely out of the question and thismust be provided for beforehand by careful deter- RENEWAL OF RAILS 153 mination with the steel tape. The number of railsthat can be laid in a given interval must be knownand though this is somewhat variable it will be foundclose to a rail a minute for intervals between 10 and25 min. r-^^—1 ^ br: .^..- 11 ^12 i ^^^-^^^ ^^■^^---O? i, sH- A.
Size: 1561px × 1601px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bo, bookcentury1900, bookdecade1910, bookidtrackmanshelperh01kind
