The cable-operated Quick-Way handled a ½-cubic-yard bucket, and it could crane 5.5 tons at a 10-foot radius. Its mechanical clutches were operated hydraulically. In 1919, a young engineer named Luke E ...

The cable/hydraulic hybrid design of the Chore-Master attachment was replaced in 1960 by a new single-purpose fully hydraulic machine known as the Grademaster. The well-known Gradall excavator, with ...