WHEELED VEHICLES 1 95 



Caterpillar Gasoline Tractor} — This type represents a depar- 

 ture from the ordinary form of engine, for the traction wheels are 

 replaced by a special traction device similar in character to that 

 used on a steam log hauler. 



The front end of the engine is carried on a single wheel which 

 also furnishes a means for steering. 



The engine is a four-cylinder, four-cycle, water-cooled type 

 with 6f-inch by 8-inch cylinders and at 550 revolutions per 

 minute develops 45 horse-power. A 34-inch flywheel is attached 

 to the main shaft and aids in maintaining an even speed. Power 

 from this shaft is transferred to bevel gears on the rear of the 

 machine, which in turn transmit the power by chains to the 

 sprocket wheels in the traction device. A forward and reverse 

 motion are provided and two speeds may be secured by shifting 

 the gears. The high speed is 5 miles per hour, and the low and 

 reverse speeds 2^ miles. 



The tractor carries a fuel tank of seventy gallons, and a water 

 tank of fifty-six gallons capacity. The latter is sufficient for 

 four or five days' running. Either kerosene or gasoline is used 

 for fuel, and from two to four gallons per hour are required, 

 depending on the amount of labor being performed. 



The weight of the machine fully equipped is about 8 tons. 



This type of tractor is adapted to soft, sandy roads and steep 

 grades where the conditions are unfavorable for the use of 

 animals. The manufacturers claim that they may be operated 

 to excellent advantage on any road except one on which many 

 boulders are present. Loads of 18,000 feet of green lumber have 

 been hauled over roads having 12 and 14 per cent grades. 



A forty-five-horse-power gasoline tractor costs $3500. 



^ Manufactured by The Holt Caterpillar Co., Peoria, Illinois. 



