. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . ns, wide, and takesin three of the ordinary round house walls of the drop pit are 18 ins. thickand the depth of the pit is 8 ft. 7 ins. On the floor of this pit there is a track,4 ft. gauge, laid with 62-lb rails andcurved to the radius of the rouud houseitself so that the car which runs on thistrack is at right angles to each of theshop pit rails when it is in position underany one of them. This car, or drop table truck, as it maybe called, resembles an engine truck inso-far that it
. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . ns, wide, and takesin three of the ordinary round house walls of the drop pit are 18 ins. thickand the depth of the pit is 8 ft. 7 ins. On the floor of this pit there is a track,4 ft. gauge, laid with 62-lb rails andcurved to the radius of the rouud houseitself so that the car which runs on thistrack is at right angles to each of theshop pit rails when it is in position underany one of them. This car, or drop table truck, as it maybe called, resembles an engine truck inso-far that it is a four-wheeled vehicle witha strong, heavy webbed steel casting or carries a heavy webbed steel castingwhich supports the drop table. The droptable casting is 3 ft. long and each sidecarries a pair of I-beams 10 ins. deepplaced side by side, capped and based byyi-in. cover plates. On the top of theupper cover plates are the locomotivetrack rails, 75 lbs. to the yard. The fourI-beams, two on a side, are bound to-gether by the table centre casting and bya 4-in. tie plate at each end. Thus a sec-. SIDE VIEW OF DROP TABLE, END VIEW OF TRUCK, AND LOCKING ARRANGEMENT. truck-plate uniting the whole, and having,as one might say, an exceedingly largecentre bearing, which in reality is theupper part of the hydraulic jack whichdoes the lifting and lowering. The truckwheels are 18 ins. in diameter and thespread of the wheels is 60 ins. The axlesof this truck have extension ends whichterminate in squares upon which a ratchetlever can be slipped, in order to move thetiuck back and forth as desired. Thetruck is made with inside bearings likean engine truck, and the ratchet levers goon outside the wheels. The drop table truck has, as we havesaid, a large centre casting made in onepiece with the ribbed truck plate. Thiscentre piece is a cylinder 15 ins. in diam-eter and 24 ins. deep. On the under sideof this cylinder an extension is extension is 71 ins. deep, thus makingthe outsi
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectrailroa, bookyear1901
