LOADING AND UNLOADING CARS 



325 



chain control, an oak boom 25 feet long, a double 6|- by S-inch 

 hoisting engine with governor control and a 36- by 96-inch verti- 

 cal boiler. The cost of this loader is $3500 f.o.b., Marion, Ohio. 

 The No. 12 loader has a steel boom 23 feet 9 inches long, gear 

 and pinion rotary control, double hoisting engines with 7^- by 

 8-inch cylinders, controlled by a balanced throttle, and a 50- by 

 82-inch vertical boiler. The pull at the tongs on this machine 

 is claimed to be from 9 to 10 tons. The cost of a loader of this 

 type is S4700 f.o.b., Marion, Ohio. 



Fig. 93. — The Rapid Log Loader. 



The Barnhart, though a fast machine, is more expensive to 

 keep in repair than some of the other t^-pes of loaders, and 

 requires skillful labor to secure the maximum output. Many 

 loggers do not regard it with favor for use on narrow-gauge roads. 

 The maximum log that it can handle is one containing about 

 1500 feet log scale. 



(b) Model C American. — This type of loader is similar in 

 character and operation to the Barnhart. It runs on temporary 

 tracks and uses the geared circle for rotating the machine. It 

 is one of the cheapest loaders to keep in repair and will handle 

 a log containing 2000 feet log scale. 



