The Allis-Chalmer’s HD-14 tractor
The Allis-Chalmers HD-14 was introduced in 1939 and was broadly based on that company’s earlier and very successful Model L and LO gasoline powered crawlers....
Category : Classic Machines
The Terex 82-50 tractor
The first machine to wear the markings “82-50” appeared in 1967. It was an experimental version of Euclid’s existing model 82-40 track-type tractor powered with...
The Caterpillar 631B scraper
Of all the motor scrapers that Caterpillar has produced through the years, perhaps the most popular in terms of worldwide unit sales is the model...
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...
The Euclid/Terex S-24 scraper
Designed as a direct replacement for its existing S-18 single engined motor scraper, the Euclid (later Terex) S-24 had a long career and was the...
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 Caterpillar DW15 scraper
The Caterpillar DW15 Revisited Back in the May 2005 issue of Contractor we had a look at Caterpillar’s DW10 successor, the DW15. Page space was...
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,...