Caterpillar’s DW21 scraper revisited
Born of necessity, the Caterpillar DW21, the great granddaddy of all Caterpillar 2-axle scrapers, went on to become a very successful scraper for Cat and...
Tag : LaPlant-Choate
The Caterpillar D8 dozer
A true classic tractor in every sense of the word, the Caterpillar D8 has been around in various forms since 1935. BY RICHARD CAMPBELL This...
The history of the towed scraper
Before the motor scraper there was the towed scraper – one of the first types of bulk earthmoving equipment to be invented. RICHARD CAMPBELL looks...
Wooldridge’s scraper range
Wooldridge is not a name many of our readers will be familiar with and yet it was an important evolutionary branch of the motor scraper...
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....
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...