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These early graders were created by adding the grader blade as an attachment to a generalist tractor unit. After purchasing the company in 1928, Caterpillar went on to truly integrate the tractor and grader into one design—at the same time replacing crawler tracks with wheels to yield the first rubber-tire self-propelled grader, the ...
A lawn sweeper, also known as a leaf sweeper or lawn brush, is a garden tool for the mechanical removal of debris, such as fallen leaves, pine needles, twigs, grass clippings or litter, from a lawn or paved area. Lawn sweepers operate via a rotating brush mechanism that sweeps up the debris and deposits it in a collection hopper for disposal.
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The U.S. Navy auxiliary motor minesweeper USS YMS-143 when new in February 1943. Secretly transferred to the Soviet Navy on 17 May 1945 during Project Hula, she became T-522 and took part in the Soviet conquest of the Japanese province of Karafuto on southern Sakhalin Island between 11 and 25 August 1945.
Patent model of Daniel Hess's carpet sweeper. In 1860 a manual vacuum cleaner was invented by Daniel Hess of West Union, Iowa. Called a "carpet sweeper", it gathered dust with a rotating brush and had a bellows for generating suction. [4] [5] Another early model (1869) was the "Whirlwind", invented in Chicago in 1868 by Ives W. McGaffey. The ...
A preserved World War II Sherman Crab, an M4 Sherman tank fitted with a flail. A mine flail is a vehicle-mounted device that makes a safe path through a minefield by deliberately detonating land mines in front of the vehicle that carries it.
Magnetic naval minesweeper as a monument in Kotka, Finland Siegburg, a modern Ensdorf-class minesweeper of the German Navy. Minesweepers are equipped with mechanical or electrical devices, known as "sweeps", for disabling mines.
A US Army Panther mine-clearing variant of the M60 Patton tank. It is fitted with mine rollers and operated by remote control. A mine roller or mine trawl is a demining device mounted on a tank or armoured personnel carrier, designed to detonate anti-tank mines.