. Railway mechanical engineer . ff Machine 556 RAILWAY MECHANICAL ENGINEER Vol. 95, No. 9 labor charge in the cleaning of flues in the D. L. and , for the entire work of loading and unloading thecleaner is completed by the shop crane, usually under thedirection of the fourth man of the repair unit. Not morethan ten minutes crane time is required for handling the tubesin this department. The cleaner will also turn out a set offorty-five 5f6-in. superheater flues in the same time requiredfor standard tubes; that is, from two to six hours. The remaining machinery on the floor also is of Rv
. Railway mechanical engineer . ff Machine 556 RAILWAY MECHANICAL ENGINEER Vol. 95, No. 9 labor charge in the cleaning of flues in the D. L. and , for the entire work of loading and unloading thecleaner is completed by the shop crane, usually under thedirection of the fourth man of the repair unit. Not morethan ten minutes crane time is required for handling the tubesin this department. The cleaner will also turn out a set offorty-five 5f6-in. superheater flues in the same time requiredfor standard tubes; that is, from two to six hours. The remaining machinery on the floor also is of Rverson matic safe end cutting-off machine is located in one cornerof the shop. In the section devoted to the safe ending of superheaterflues are one type B flue welding furnace; one combinationhot saw and tube expanding machine with a superheater safeend magazine and one pneumatic flue welding machine andswedger. • Between the superheater section and the storage racks atthe end of the department is a boiler tube reclaiming ma-. Fig. 5—After Heating, the Fag Ends of Tubes Are Cut Off, and Safe Ends Inserted on This Machine make, segregated in three sections with sufficient space be-tween each unit so that the work may be carried on withoutinterference. The standard 2-in. to 2^4-in. tube safe endinglayout has for equipment two type C special tube fur-naces, two combination hot saw and tube expanding ma-chines (one with a safe end magazine), one type A fluewelding furnace and one flue welding machine, occupying asection along the west side of the department about 40 30 ft. In connection with the safe ending work an auto- ubes Are Heated to the Welding Point, and Then Weldedand Swedged on This Double Pneumatic Hammer chine, used in reclaiming tubes not possible to handle in thestandard 2 to 24-in. repair equipment. Preparing Safe Ends for Welding to Tubes The first step in the actual safe ending of the tubes is thecutting of stock tubing into safe ends of suit
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroadengineering
