CHAPTER XIII 



WHEELED VEHICLES 



Wheeled vehicles may be used where snow is not available as 

 a bottom on which to move logs. They are employed for sum- 

 mer logging in the Lake States, and for year round logging in 

 the South, Southwest, the sugar pine region of California and 

 the Pacific Coast region. 



TWO-^\^IEELED VEHICLES 



Bummers. — A low truck called a bummer or self-loading 

 skidder has come into extensive use in the flat and rolling hard- 

 wood and the yellow pine forests 

 of the South, especially in Arkan- 

 sas and Louisiana. A similar ve- 

 hicle is also used in some places in 

 the Inland Empire. In the South, 

 bummers are often made by the 

 camp blacksmith and have solid 

 black gum wheels with 14-inch 

 faces and a diameter of from 18 to 

 21 inches. Those offered by manu- 

 facturers of logging supplies have 

 a skeleton wheel 24 inches in di- 

 ameter with a 6-inch tire. The 

 solid wheel is preferred by many, 

 because it gives a greater bearing 

 surface on soft ground. 



Heavy steel axles support a 



Fig. 44. — The Method of loading 

 Logs on a Bummer. 



in length and slightly concave on 

 its upper surface. A tongue 5I 

 feet long is attached to the bunk and serves both as a loading 



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