LOADING AND UNLOADING CARS 
363 
(6) 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 ])oard feet. 
(c) Rapid. — The Rapid loader has a stiff wooden boom, 
an upright boiler and a double hoisting engine. These are mounted 
on a pair of steel runners on which the loader slides from car 
Fig. 123. — The Rapid Log Loader. 
to car. Power for moving itself is furnished by a cable and drum. 
Rapid loaders are sometimes mounted on a heavy pair of two- 
sleds for sled loading. It is adapted for light work. 
{d) Model D American. — This loader is used only where light 
equipment is employed because it is necessary for the loader to 
lift the empty car from the track in the rear to the front, or vice 
versa. Model E is similar in character but has eight wheels 
on the trucks and is adapted for poor track. Both D and E 
models can move under their own power. 
(e) Decker. — The frame of this loader has two decks. The 
upper one is supported by steel posts which rest on bolsters 
placed directly over the trucks on which the loader is mounted. 
This deck carries the boiler, engine, and other working parts of 
the machine, while the lower deck is on a level with the bolsters 
