RAILWAY CONSTRUCTION. 279 



Fig. 423 shows a shed with a line of rails down the centre, 

 and a loading-bank on each side, the cartways being outside the 

 building ; one loading-bank is for inwards goods, and the other 

 for outwards goods. On the arrival of a loaded railway truck, 

 the door on one side is opened, and the contents unloaded on to 

 one of the loading-banks. The door is then closed, and the 

 opposite door opened for loading from the other loading-bank. 

 By this method a railway truck can be unloaded and loaded 

 again without changing its position. 



Fig. 424 represents a shed with two lines of rails down the 

 centre and loading-banks on each side, the cartways being 

 outside the building. One line of rails and corresponding loading- 

 bank is for inwards goods, and the other line of rails and loading- 

 bank for outwards goods. When the railway trucks on the 

 arriving line are unloaded, they are either drawn out of the shed 

 and shunted on to the opposite line to be loaded again, or trans- 

 ferred direct on to the opposite line by turn-tables, or traversers, 

 placed at convenient distances between the columns supporting 

 the roof. 



Fig. 425 illustrates a shed in which both the line of rails 

 and cartway are placed inside the building. This is no doubt 

 the most convenient type for transfer of general goods, as all the 

 operations of transhipment are carried on entirely under cover ; 

 but it is the most costly, on account of the large building and 

 roof area required. 



Fig. 426 shows a large double shed similar in general 

 arrangement to the type represented in Fig. 425, but with three 

 lines of rails down the centre. The line A may be used for 

 inwards goods, and C for outwards. By means of turn-tables, or 

 traversers, connecting the three lines at convenient distances in 

 the length of the building, the unloaded trucks can be transferred 

 on to the far line, C, for loading again, or on to the line B, to be 

 drawn away out of the building. The lines A and C may both 

 be used for inwards traffic, or both for outwards, and the line B 

 used for taking away or bringing in empty trucks. 



Fig. 427 represents a shed with the line of rails and cartway 

 inside the building, and both very nearly on the same level. 

 This class of shed is often considered the most suitable for fruit, 

 vegetables, and certain light goods which require prompt 

 delivery and careful handling. 



Fig. 428 shows a form of shed with a raised loading-bank on 



