Truck Which Are Making Them More Versatile 



At right: Unloading logs 

 ■"--^ from a truck over a 

 '-'^\\ wooden pier into Lake 

 ;-\ K Sammamish, Washington 



Above: An angle wrench with 

 adjustable jaws which will 

 take any tap up to one and 

 one-quarter inches at any 

 one of eight different angles 



A spark-plug with a 

 turbine fan rotated by 

 the engine explosions. 

 Hot sparks are deliv- 

 ered to the bushing, 

 giving a larger spark- 

 ing area and throwing 

 off waste oil deposits 



A gas-electric suction street-sweeper. The dirt 

 is picked up by a revolving brush and sucked into 

 a pipe where a blower sends it to the trailer. 

 There it is screened and packed for removal 



703 



