7 2 



POPULAR SCIENCE MONTHLY. 



by a distinct type of apparatus, but which has finally reached a point 

 of development where it is possible for one of these machines to hoist 

 a loaded coal car into position alongside a vessel, pour its contents into 

 chutes communicating with the hold and return the empty car to the 

 track in the elapsed time of one minute. In the case of the most ap- 

 proved styles of car-dumpers the loaded car is clamped to the track in 

 a sort of cradle in such manner that it may be turned completely 

 over and yet by means of a reciprocating movement on the part of a 

 huge pan suspended in the framework of the machine and connected 

 with the chute leading to the hold of the vessel, the coal is transferred 

 with a minimum amount of breakage. 



McMyles Car Dump. 



A class of coal-handling machinery in which recent years have 

 witnessed great development is found in the various forms of chain 

 elevators and link-belt machinery. This form of equipment is used 

 extensively at railroad coaling stations designed to supply fuel to 

 locomotives. In a representative installation one run of the upper 

 conveyor is for stocking the coal and the other for distributing it into 

 chutes, while the lower conveyor delivers coal from storage. Each 

 conveyor is an endless chain interspersed with metal partitions form- 

 ing pockets, is 600 feet in length and has a capacity of 120 tons of 

 coal per hour. In many stations an inclined conveyor delivers coal 

 from cars to a distributing convej'or and the latter apportions the fuel 

 among twelve or more chutes. Conveyors of this same general type are 



