. Locomotive engineering : a practical journal of railway motive power and rolling stock . ock. This car has only four longitudinal sills, Locoirtiittii: Eiiifiitccnnff of service, thus forming a box girder atthe weakest portion of the car. The two outside sills are made of 10-inch channels, which with the center sillsabut against, and are tied at the ends by,a plate J^ inch thick; secured to theseplates, at the bottom, is an 8-inch channelwith its flanges extending upward to re-ceive an end sill of oak, 8 inches wide and10 inches deep. The frame is further se-cured laterally by two transverse
. Locomotive engineering : a practical journal of railway motive power and rolling stock . ock. This car has only four longitudinal sills, Locoirtiittii: Eiiifiitccnnff of service, thus forming a box girder atthe weakest portion of the car. The two outside sills are made of 10-inch channels, which with the center sillsabut against, and are tied at the ends by,a plate J^ inch thick; secured to theseplates, at the bottom, is an 8-inch channelwith its flanges extending upward to re-ceive an end sill of oak, 8 inches wide and10 inches deep. The frame is further se-cured laterally by two transverse girdersspaced equi-distant between the body bol-sters. The body bolsters, made of two6-inch I-beams, also materially assist thesegirders in preventing distortion of theframe, by aid of the gusset plates on each,at their junction with the sills. To givean additional stiffness to the frame witha very slight amount of material, thereare also gusset plates at the inside face ofend sills, and extending over center sills. 678 LOCOMOTIVE ENGINEERING. Half Section at Transverse Girders. -atnt. End Elevation, from which there are diagonal bracesreaching back to the gussets at the bol-sters—a construction that will tend to pre-serve the car from the racking eflfects ofthe severest buffing shocks. These arewell shown on the plan view. The center sills are spaced sufficientlyfar apart to take a twin-spring draft rig,thus doubling the capacity of the springto reduce the above shocks to a is a scheme that is coming to be wellknown where new construction makes itpossible to get the proper space betweenthe sills. With a 15-inch center sill, thatterror of the repair track, the draft timber,is no longer necessary; the longitudinalsection shows an infinitely better con-struction than could ever be worked outby the draft-timber cobbler, even in hishappiest mood. A central draft is correct,and looks mechanical when it is right. A novel arrangement of the flooring ishad by laying it
Size: 1610px × 1551px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroa, bookyear1892
