The Oliver OC-18 tractor
In its heyday, the Oliver Corporation of Cleveland Ohio, USA was a well-respected company manufacturing agricultural tractors and implements. By Richard Campbell. Looking to expand...
Category : Classic Machines
Motor graders of LeTourneau-Westinghouse
Prior to its acquisition by Westinghouse Air Brake Co (WABCO), RG LeTourneau Inc, had tried unsuccessfully to design and develop a motor grader to complement...
The International Harvester 270 PayScraper
Ten years ago, when I first wrote about the International 270 PayScraper (Contractor, September 2005), the article was heavily abridged to fit available publishing space. Also,...
Caterpillar’s Diesel Sixty: A landmark machine
The Diesel Sixty marked a significant milestone in the development history of the track type tractor in that it was the first such diesel engined...
Hancock’s elevating scraper pioneer
Many of the machines used in earthmoving today were born out of the need for a specific tool to carry out a local task. Necessity...