. Railway mechanical engineer . No. 3 Electric Grinder and Polishing Lathe nished with push button controller if desired. In the smallersizes the switch is mounted in the frame of the motor. Single and Double Spindle Threading Machines T WO new threading machines, brought out by the EasternMachine Screw Corporation, New Haven, Conn., em-body high rates of production and quality of the Pig, 1—h & G Single Spindle Threading Machine, Model SS Special features include hardened and ground spindles andround tool steel ways with bronze bearings, easily replaced when necessary. The design of th
. Railway mechanical engineer . No. 3 Electric Grinder and Polishing Lathe nished with push button controller if desired. In the smallersizes the switch is mounted in the frame of the motor. Single and Double Spindle Threading Machines T WO new threading machines, brought out by the EasternMachine Screw Corporation, New Haven, Conn., em-body high rates of production and quality of the Pig, 1—h & G Single Spindle Threading Machine, Model SS Special features include hardened and ground spindles andround tool steel ways with bronze bearings, easily replaced when necessary. The design of the slides is such that thepiece threaded is held low and near the slide bearing. Thisdoes away with cross strain and cramp and makes accuratealinement possible under all conditions. Although designed with liberal margins of safety the ma-chines are relatively small and compact for the range ofwork and rate of production of which they are capable. Onlya relatively small floor space, therefore, is occupied. Single Spindle Model SS Machine The small bench threading machine has been recentlyre-designed, as illustrated in Fig. 1, with the purpose ofimproving its appearance and durability and enlarging itsrange of work. This machine may be obtained either as abench machine or equipped with a cabinet base. The benchspace taken up in the former and the floor space in the latterare small
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroadengineering
