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A one-way, low-speed (OWLS) diamond in Champaign, Illinois.This is an example of flange-bearing frogs in use on North American freight rail lines. A flange-bearing frog, often abbreviated FBF, is a type of frog in which the flange of the wheel on a railway vehicle supports the weight of the vehicle.
There are two common methods to manufacture diamond grinding cup wheels: hot pressing and cold pressing. The hot pressing method is to directly sinter the diamond segments in molds under a certain pressure in the dedicated sintering press machine, and then fix or connect the diamond segments onto the grinding wheel’s body via high-frequency welding, laser welding or mechanical mosaic method.
Diamond wheel. Diamond wheels are grinding wheels with industrial diamonds bonded to the periphery. They are used for grinding extremely hard materials such as carbide cutting tips, gemstones or concrete. The saw pictured to the right is a slitting saw and is designed for slicing hard materials, typically gemstones.
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Cathedral Valley Corral, Utah Remnant of Texas Trail Stone Corral, Nebraska. This is a list of notable corrals used to enclose horses and other livestock. In the American west, a number of historic corrals are listed on the U.S. National Register of Historic Places (NRHP). [1]
The Diamond Calk Horseshoe Company of Duluth, Minnesota, USA was founded in 1908 by blacksmith Otto Swanstrom.. Initially manufacturing horseshoes with a special type of calk to improve the animals' foothold on slippery surfaces, the company successfully adapted to the development of motorised transport for the masses and produced a range of adjustable wrenches and pliers from the 1920s.
"Truck, Diamond, 4-ton, 6×6 with winch cargo" In 1939-1941 the Army Ordnance Corps was developing a complete line of tactical trucks that could operate over all roads and cross-country terrain in all weather. 4-ton (3,600 kg) load rated six-wheel drive trucks had been successful towing artillery in the 1930s, and the size would be standardized to tow the Field Artillery Branch's new 155 mm ...