. Electric railway journal . ng system of almost the same low cost as trolley con-tacts, but with the freedom from speed and weatherlimitations common to elaborate track circuit equip-ments. The reason is that in the new Chapman system thesignals are set by the passing of the car wheels over aninsulated track of suitable length and ELIMINATING: slow-downs required inapproaching trolley contact signals. Distortion of con-tactors when approaching at high speed in spite oforders. Eventual failure of distorted contactors to registersignal indications. Unreliability of trolle
. Electric railway journal . ng system of almost the same low cost as trolley con-tacts, but with the freedom from speed and weatherlimitations common to elaborate track circuit equip-ments. The reason is that in the new Chapman system thesignals are set by the passing of the car wheels over aninsulated track of suitable length and ELIMINATING: slow-downs required inapproaching trolley contact signals. Distortion of con-tactors when approaching at high speed in spite oforders. Eventual failure of distorted contactors to registersignal indications. Unreliability of trolley contactors because of snow, iceand sleet. High cost and inconvenience of contactor maintenance,whereas the Chapman track relay can be placed in anaccessible weatherproof box and demands no upkeepexcept occasional replacement of electrolyte. THE CHAPMAN SYSTEM IS ALSO EASILYADAPTED FOR USE AS A CROSSING write us direct for full particulars. Charles N. Wood Co., KJSSi 64 ELECTRIC RAILWAY JOURNAL January 5, 1918. Latest Van Dorn Radial M. C. with Draft Gear THE VAN DORN No. 88o M. C. B. COUPLERWITH DRAFT GEAR as shown above is well bal-anced and has the greatest strength possible for itsweight. COUPLER HEAD Has positive locking, unlocking, and knuckle throwpositions. Has extended guard arm and butting wall whichgreatly facilitate coupling and prevent buckling intrain operations. For Interurban Service Couples by impact and is uncoupled from the outsideof the car. The deep knuckle permits wide, free vertical move-ment. DRAFT GEAR The draft gear is very effective in absorbing allows a free radial swing of over 120 degrees,which insures operation without binding on shortradius curves. This equipment is especially adapted to low interurban cars. VAN DORN COUPLER COMPANY, 2325 South Paulina Street, Chicago When Peace is Signed THE nations of the world will em-bark upon the most extensivescheme of reconstruction everinaugurated in the history of the w
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