. Electric railway journal . It was specified that a fully equipped car should be capa-ble of running at the rate of for at least anhour and at a maximum speed of The continu-ous tractive effort developed at the diameter of the wheelsfor an hour was to be at least 11,000 lb. during runningand 16,280 lb. at starting. A motor car must therefore becapable of hauling a total load of 240 metric tons at 45km an hour ( ) on a per cent grade, or 160tons on a per cent grade. The cars are equipped with lighting, heating and sanding devices. The wiring is soarra
. Electric railway journal . It was specified that a fully equipped car should be capa-ble of running at the rate of for at least anhour and at a maximum speed of The continu-ous tractive effort developed at the diameter of the wheelsfor an hour was to be at least 11,000 lb. during runningand 16,280 lb. at starting. A motor car must therefore becapable of hauling a total load of 240 metric tons at 45km an hour ( ) on a per cent grade, or 160tons on a per cent grade. The cars are equipped with lighting, heating and sanding devices. The wiring is soarranged that the main circuits will be unaffected by thechange to four-motor operation. The current collectors can be operated for clearancesover the height of the rails varying from 15 ft. 9 in. to23 ft. 1 in. Under certain conditions the contact piece canbe lowered to a point ft. above the rails. The widthof the sliding bow is only ft., on account of the clear-ances which will have to be met in the Lotschberg tunnel;. Spiez-Frutigen Railway—Motor Truck and Control Contactor independent hand brakes for each truck and with the West-inghouse air brake. Every wheel is fitted with pneumaticsanding apparatus which can be electrically thawed if nec-essary. There are six electric signal lamps, besides oillamps and candles for emergencies. DETAILS OF ELECTRICAL CAR EQUIPMENT The electrical equipment per car is divided into two sim-ilar sets made up as follows: high-tension oil switch, oiltransformer, two motors with voltage regulator and con-troller, choke coil and mechanical draft apparatus. Theparts common to both groups are the two bow pantograph therefore the trolley wire must not be staggered more in. from the center line of the track. The pantographsare mounted on sets of grooved high-tension pantograph frame is adjusted for important variationsin height by means of compressed air and chain transmis-sion, but it is lowered by its own weight. The c
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