Tandem Roller. Monday , June 04th , 2018 - 15:16:50 PM
Steam rollers were often dedicated to a task by their gearing as the slower engines were for base compaction whereas the higher geared models were often referred to as chip chasers which followed behind the hot tar and chipping laying machines. Some road companies in the United States used steamrollers through the 1950s and in the UK some remained in commercial service until the early 1970s.
As internal combustion engine technology improved during the 20th century kerosene- gasoline- (petrol) and diesel-powered rollers gradually replaced their steam-powered counterparts. The first internal-combustion powered road rollers were very similar to the steam rollers they replaced. They used similar mechanisms to transmit power from the engine to the wheels typically large exposed spur gears. Some users did not like them in their infancy as the engines of the era were typically difficult to start particularly the kerosene-powered ones.
At this ratio it means the drive gear must make 1.62 revolutions to turn the driven gear once. It also means that for every one revolution of the driver the driven gear has made 1/1.62 or 0.62 revolutions. Essentially the larger gear turns slower.
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