Tag : LeTourneau

Classic Machines Contractor Scrapers

Classic Machines: LeTourneau’s Model A Tournapull

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R.G LeTourneau conceived the idea of the self-propelled motor scraper while recovering from a near-fatal auto accident.  He approached Caterpillar with the concept but they...
Forgotten companies

Forgotten companies: Carco

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Many of the readership will identify the name Carco as being associated with logging winches and forestry equipment. However, Carco’s roots go much further back...
Classic Machines Tractors

Classic Machines: The Allis-Chalmers HD-19 revisited

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Allis-Chalmers led the charge for a bigger, higher horsepower track type tractor following World War Two. The resulting model HD-19 was a breakthrough in many...
Classic Machines Tractors

Classic Machines: Caterpillar’s D7 tractor -‘the early years’

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The iconic Caterpillar D7 has been in continuous production in various versions since 1935. They have fought in three major conflicts – WWII, Korea &...
Classic Machines Forgotten companies

Forgotten companies: Bucyrus-Erie

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The Bucyrus-Erie Company was world famous for it’s range of face shovels, draglines, cranes and other mining and quarry equipment. However, it also made a...
Classic Machines Scrapers

A more modern look at the Allis-Chalmers TS-200 motorscraper

Gill Prentice
Although it was not an original Allis-Chalmers design, the model TS-200 motorscraper paved the way for a far more successful machine in Allis’ product line,...
Classic Machines Forgotten companies

Forgotten companies: Isaacson

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Back in time when the track type tractor was still considered a new tool for earthmoving, there were dozens of companies offering attachments to outfit...
Classic Machines Scrapers

Classic Machines: Caterpillar’s DW21 scraper revisited

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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...
Classic Machines Scrapers

Classic Machines: Wabco 229 Series – End of a long lineage

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In a successful attempt to keep up with the competition, Wabco finally incorporated full hydraulic controls into the Model C Tournapull. By Richard Campbell. Starting...
Classic Machines Scrapers

Classic Machines: RG Le Tourneau’s L-series Pacemaker

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Le Tourneau was a visionary machine designer. His innovative electric wheel, developed for the L-series Pacemaker motorscraper, is now used in most mining trucks. Only...