. Electric railway journal . eans for controlling thesupply of air to each boiler. The fires are now dumped onan average only three times in each twenty-four hours andthis is done at periods off the peak load when the tem-porary shutting down of one or two boilers does not affectthe supply of steam to the turbines. EFFECT OF COLLISION BETWEEN TWO STEEL CARS The accompanying illustration from a photograph showsthe damage to two 70-ft. McKeen steel motor car bodieswhich collided on a sharp curve with an impact velocityof between 75 and 85 No loss of life resulted fromthis collision as bot
. Electric railway journal . eans for controlling thesupply of air to each boiler. The fires are now dumped onan average only three times in each twenty-four hours andthis is done at periods off the peak load when the tem-porary shutting down of one or two boilers does not affectthe supply of steam to the turbines. EFFECT OF COLLISION BETWEEN TWO STEEL CARS The accompanying illustration from a photograph showsthe damage to two 70-ft. McKeen steel motor car bodieswhich collided on a sharp curve with an impact velocityof between 75 and 85 No loss of life resulted fromthis collision as both motormen jumped before the carscame together and none of the passengers in the rear com-partments of both cars was badly injured. Some of thepassengers sustained bruises and slight injuries, but nobones were broken. The cars did not telescope and werenot damaged except for the crushing of the pointed frontends. The gasoline engines in the front ends of both carswere uninjured and not a wheel under either car left Steel Cars After Head-On Collision . The comparatively small damage to the cars and theprevention of serious injuries to any of the passengers areclaimed to be due to the type of steel construction em-ployed in these cars. A single I-beam center sill connectsthe forward end and the rear end of the car and the steelchannel side sills are continuous around the entire depressed side sill in the middle of the car enables acombination plate and truss girder to be worked out ofthe side of the car so that the sides of the car are utilizedfor carrying the weight, resisting the major portion of thestresses set up in case of collision. The use of the roundwindows enables the diagonal braces to run up to therequisite height. No posts are used in these cars, but ribsand stays similar to those in a ship extend from one sidesill to the other, forming in one piece the posts and car-lines, and tying the superstructure to both side sills. Therigid rectangular braci
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Keywords: ., bookcentury1900, bookdecade1900, bookpublishernewyorkmcgrawhillp
