History
The first self-propelled grader was made by the Russell Grader Manufacturing Company in 1920: the Russell Motor Hi-Way Patrol. Early graders such as this were propelled by separate tractor units, with the grader blade as an attachment. After purchasing the company in 1928 Caterpillar went on to integrate the tractor and grader into one design - at the same time replacing crawler tracks with wheels to yield the first rubber-tyre self-propelled grader, the Caterpillar Auto Patrol, released in 1931.
Read more about this topic: Grader
Famous quotes containing the word history:
“Revolutions are the periods of history when individuals count most.”
—Norman Mailer (b. 1923)
“Every generation rewrites the past. In easy times history is more or less of an ornamental art, but in times of danger we are driven to the written record by a pressing need to find answers to the riddles of today.... In times of change and danger when there is a quicksand of fear under men’s reasoning, a sense of continuity with generations gone before can stretch like a lifeline across the scary present and get us past that idiot delusion of the exceptional Now that blocks good thinking.”
—John Dos Passos (1896–1970)
“History takes time.... History makes memory.”
—Gertrude Stein (1874–1946)