Tractor Test and Power Museum, The Lester F. Larsen
Nebraska Tractor Tests
Date of this Version
January 1978
Abstract
DAVID BROWN TRACTORS: INSIDE STORY
A summary of the design and manufacturing achievements of David Brown Tractors Ltd.
David Brown 'Firsts'
Few if any, tractor manufacturers can equal the David Brown record of pioneering achievement in tractor maufacture and development. Major examples are:
1937 - World's first farm tractor equipped with hydraulic lift and converging 3-point linkage
1948 - Two-speed power take-off, six-speed gearbox
1949 - High-speed direct injection diesel engine for farm tractors
1953 - Traction control (implement weight transfer)
1959 - All purpose tractor hydraulic system with single lever control.
1964 - Dial-controlled tractor hydraulic system
1968 - Introduction of fully approved safety cabs for all models
1966 - Twelve-speed gearbox
1971 - Semi-automatic transmission providing on-the-move clutchless changes to any of four ratios in each working range
David Brown involvement in farm machinery began in 1936 when the company, the a subsidiary of the local family firm David Brown and Sons Ltd., collaborated with Mr. Harry Ferguson in the manufacture of the legendary Ferguson-Brown tractor.......
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