AERIAL TRAMWAYS 



227 



then revolved and the trolleys and log drawn to the lower end 

 of the tramway. When car (19) is loaded, drum (3) is revolved 

 and by means of cable (21) the train of cars is drawn to the left 

 until car (22) is under the unloading device. When all the 

 cars have been loaded they are pulled out by a locomotive and 

 empties substituted for them. 



Fig. 62. — A Single-cable Tramway, a. Delivery station. /). Details of 

 trolley, c. Profile of tramway line. 



The details of the intermediate supports, trolleys and grips, 

 also the method of hanging the main and secondary cable are 

 shown in Fig. 62 a. The main cable is clamped securely to 

 the hanger and serves to hold the supports upright, permitting 



