. Railway mechanical engineer . own to the mark and makea crease in the paper at the mid-point. in 20+ ;. 400 z4- i^o 50■fco Sf 4-70■ --80■90 ■ --SOO [ --«ioo i 700 --aoo y-r90O i--I0OO --20O0 - --4000 °: --5000 B 688 RAILWAY MECHANICAL ENGINEER Vol. 95, No. 11 Turntable Indicating Device BY M. A. BOUYSOV Considerable time is often lost at terminals in shifting alocomotive back and forth on a turntable until the table is inbalance and can be readily revolved without unnecessarywaste of power. Moreover, it is usually necessary to have asecond man on the ground to signal the hostler when theloco
. Railway mechanical engineer . own to the mark and makea crease in the paper at the mid-point. in 20+ ;. 400 z4- i^o 50■fco Sf 4-70■ --80■90 ■ --SOO [ --«ioo i 700 --aoo y-r90O i--I0OO --20O0 - --4000 °: --5000 B 688 RAILWAY MECHANICAL ENGINEER Vol. 95, No. 11 Turntable Indicating Device BY M. A. BOUYSOV Considerable time is often lost at terminals in shifting alocomotive back and forth on a turntable until the table is inbalance and can be readily revolved without unnecessarywaste of power. Moreover, it is usually necessary to have asecond man on the ground to signal the hostler when thelocomotive has been placed correctly. To obviate these diffi-culties the turntable indicating signal, illustrated in Fig. 1,was applied in April, 1921, having been in service up to datewith good results. The device was installed after an accidentdue to failure of the electric generator when it was necessaryto operate this table with laborers. During this time it wasnoticed that with the table properly balanced it could be. Fig. 1—View Showing Indicator Applied at Each End of theTurntable handled by two men and when not perfectly balanced it re-quired from six to eight men to move it. With the indicator illustrated, it is now possible to tellwhen the table is balanced without the common practice ofhaving an additional man at the end of the table to signalthe hostler. Referring to Fig. 1 it will be evident that onesignal is placed at either end of the turntable so as to be visible to the hostler no matter which way the locomotive isturned. The signal itself is a three-position signal, with bullseye and semaphore With the table balanced, bothblades will stand in a horizontal position and when the tableis unbalanced the flag at the high end will be tipped up, thatat the other end being tipped down. The construction and
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroadengineering
