Search results
Results From The WOW.Com Content Network
The history of crawler excavators can be traced back to the late 19th century, with the invention of the steam shovel in 1796. However, it wasn't until the 1830s that the first patented excavator with a mechanical boom, the Otis steam excavator, was developed.
305M Crawler Dragline Marion Power Shovel Company was an American firm that designed, manufactured and sold steam shovels , power shovels , blast hole drills , excavators , and dragline excavators for use in the construction and mining industries.
Gradually Universal Excavators designed by Bucyrus-Erie replaced Ruston & Hornsby designed models. The original range of standardised rope-operated machines included 10RB, 17RB, 19RB, and 33RB and were upgraded through some intermediate models including the 54RB to a main selling range in the 1960s of 22RB, 30RB, 38RB, 61RB, and 71RB.
Bucyrus-Erie 1150RB walking dragline preserved at St Aidan's opencast coal mine, Yorkshire, England A 200-B power shovel, and a Class 24 on display at the Reynolds-Alberta Museum 4250-W walking dragline , also known as Big Muskie , was built in 1969, with a 220-cubic-yard (170 m 3 ) bucket and weighed 13,000 metric tons.
In 1939, Case changed its color scheme to Flambeau Red, with the excavators being a ruddy yellow. By 1929, Case had expanded to Australia, Mexico, Sweden, and other countries. Also that year, the J. I. Case Company produced its first crawler tractor. S and V tractors were introduced in 1940.
As of 2012 the museum collection included half-a-dozen cranes, diggers, and excavators, including an Orenstein & Koppel L 051 power shovel that arrived in May 2012. [24] In 2014 a crawler excavator rescued by Walter Ofenloch was added to the collection. [14] By 2017 there were ten construction machines with eight restored and working. [7]
The search engine that helps you find exactly what you're looking for. Find the most relevant information, video, images, and answers from all across the Web.
For example, Caterpillar's smallest mini-excavator weighs 2,060 pounds (930 kg) and has 13 hp; [8] their largest model is the largest excavator available (developed and produced by the Orenstein & Koppel, Germany, until the takeover 2011 by Caterpillar, named »RH400«), the CAT 6090, which weighs in excess of 2,160,510 pounds (979,990 kg), has ...