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A Bobcat compact excavator. A compact or mini excavator is a tracked or wheeled vehicle with an approximate operating weight from 0.7 to 8.5 tonnes. [1] It generally includes a standard backfill blade and features independent boom swing.
Smalley 425. 1977 1971 Smalley 5 Mk II excavator. A smalley is a type of small excavator with two wheels on a single axle. It had no drive to the wheels, moving instead by pulling itself along using the excavator or 'backhoe' arm. Once in location the machine worked as any other 360° excavator, with two fixed-adjustable front legs, and two ...
Some tractor operators have raised concerns about using ROPS in low-clearance environments, such as in orchards and buildings. In response, NIOSH developed an Automatically Deploying Rollover Protective Structure (AutoROPS) which stays in a lowered position until a rollover condition is determined, at which time it deploys to a fully extended and locked position.
The Railroad Car Builder's Dictionary. Dover Publications. White, John H. (1978). The American Railroad Passenger Car. Baltimore, MD: Johns Hopkins University Press. ISBN 0801819652. OCLC 2798188. White, John H. Jr. (1993). The American Railroad Freight Car: From the Wood-Car Era to the Coming of Steel. Baltimore: Johns Hopkins University Press.
The AAR/APTA TypeE, TypeF, and TypeH couplers are all compatible Janney couplers, but used for different rail cars (general freight, tank cars, rotary hoppers, passenger, etc.). The knuckle coupler or Janney coupler was invented by Eli H. Janney , who received a patent in 1873 ( U.S. patent 138,405 ). [ 20 ]
According to EN 15551, the standardised widths for freight wagon buffers are 450 or 550 mm, for Spain 550 or 650 mm with a height of 340 mm. For passenger coaches, the buffer plate widths are between 600 and 720 mm, depending on the vehicle geometry. Buffers with non-circular buffer heads cannot be rotated in any case.
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 ...
The cab of an 18-wheeler Bunk See sleeper berth. Cab The interior of a truck where the driver sits to operate the vehicle. Cheater axle See lift axle. Dual wheels A pair of tire and wheel assemblies mounted side-by-side on a single axle hub. In some applications it is replaced by a super single. On pickup trucks it is sometimes called a dually ...