Classic Machines: LeTourneau’s Model A Tournapull
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...
Tag : LeTourneau
Forgotten companies: Carco
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: The Allis-Chalmers HD-19 revisited
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: Caterpillar’s D7 tractor -‘the early years’
The iconic Caterpillar D7 has been in continuous production in various versions since 1935. They have fought in three major conflicts – WWII, Korea &...
Forgotten companies: Bucyrus-Erie
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...
A more modern look at the Allis-Chalmers TS-200 motorscraper
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,...
Forgotten companies: Isaacson
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: 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...
Classic Machines: Wabco 229 Series – End of a long lineage
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: RG Le Tourneau’s L-series Pacemaker
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...