. Official proceedings . $l°?PerYear **$£? 25* PerCopy^ DECEMBER 23, 1926 No. 2 ICAR RETARDING SYSTEMS IN CONNECTION WITHTHE OPERATION OF HUMP YARDS. By MR. W. B. RUDD, Engineer, Union Switch & Signal Company, Swissvale, Pa. [ Steel Car Forge Company PITTSBURGH, PENNSYLVANIA FORGINGS. Dieter Lock and Holding Nuts STANDARD SAFETY NUTCORPORATION 30 CHURCH ST. NEW YORK NORDBERG PATENTED TRACK SHIFTER HEISLER GEARED LOCOMOTIVES RAILROAD SPIKE DRIVER Martin J. OBrien Company, Pittsburgh, Pa. Union Bank Building _____ ALWAYS AT YOUR SERVICE— P. T. L. Inspectors—located in the large industrial center
. Official proceedings . $l°?PerYear **$£? 25* PerCopy^ DECEMBER 23, 1926 No. 2 ICAR RETARDING SYSTEMS IN CONNECTION WITHTHE OPERATION OF HUMP YARDS. By MR. W. B. RUDD, Engineer, Union Switch & Signal Company, Swissvale, Pa. [ Steel Car Forge Company PITTSBURGH, PENNSYLVANIA FORGINGS. Dieter Lock and Holding Nuts STANDARD SAFETY NUTCORPORATION 30 CHURCH ST. NEW YORK NORDBERG PATENTED TRACK SHIFTER HEISLER GEARED LOCOMOTIVES RAILROAD SPIKE DRIVER Martin J. OBrien Company, Pittsburgh, Pa. Union Bank Building _____ ALWAYS AT YOUR SERVICE— P. T. L. Inspectors—located in the large industrial centers, inspect and test every step during manufacture and guarantee excellenceof construction. Bulletin 20 and 21 Tell How It Is Done—Write For Your Copy. PITTSBURGH TESTING LABORATORY Inspection Engineers and ChemistsPITTSBURGH, PA.
Size: 1867px × 1338px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, bookidofficialproc, bookyear1901
