. Electric railway journal . town; John F. Whitaker, president Lewistown, Milton &Watsontown Passenger Railway Company. Mr. Whitakeris a resident of Harrisburg. Much interest was manifested in the presentation of apaper by S. R. Hippie, of Williamsport, general managerof the Simplex Surface Contact Company, on The Valueand Uses of the Surface Contact System. This paperwas afterward generally discussed by those present. Anabstract of this paper follows: SIMPLEX SURFACE CONTACT SYSTEM Mr. Hippie prefaced his description of the Simplex sur-face contact system with a brief summary of the early Con
. Electric railway journal . town; John F. Whitaker, president Lewistown, Milton &Watsontown Passenger Railway Company. Mr. Whitakeris a resident of Harrisburg. Much interest was manifested in the presentation of apaper by S. R. Hippie, of Williamsport, general managerof the Simplex Surface Contact Company, on The Valueand Uses of the Surface Contact System. This paperwas afterward generally discussed by those present. Anabstract of this paper follows: SIMPLEX SURFACE CONTACT SYSTEM Mr. Hippie prefaced his description of the Simplex sur-face contact system with a brief summary of the early Contact Boxes in Straight Track attempts to design a satisfactory type of contact switchingdevice. In the first experiments made by his company asection of the Lewisburg, Milton & Watsontown PassengerRailway was equipped with iron contact boxes containingtwo movable pole pieces and a rotating armature. Thistype of box was superseded by a solid brass box containingtwo fixed iron pole pieces and a rotating armature carry-. December 16, 191 i.] ELECTRIC RAILWAY JOURNAL. 1239 ing a brass contact piece which made contact with a fixedcarbon brush connected to the feeder cable. The experi-mental car was equipped with two magnet bars made ofNorway iron 20 ft. long, 2 in. wide and 1 in. thick sus-pended from the motor cases with wood of these bars carried three magnet coils each com-posed of 20 lb. of No. 19 cotton-covered wire inclosed in
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