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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.
Drilled pit hole. In short, there are mainly two types of concealed hinge jigs, "push jigs" and "hole template jigs". [4] Push jigs are used to hold the Forstner bit perpendicular to the door surface and a "hole template jig" it is simply used for marking the place of the pit hole, placing it parallel to the door edge.
Twist drill bits range in diameter from 0.002 to 3.5 in (0.051 to 88.900 mm) [9] and can be as long as 25.5 in (650 mm). [10] The geometry and sharpening of the cutting edges is crucial to the performance of the bit. Small bits that become blunt are often discarded because sharpening them correctly is difficult and they are cheap to replace.
The workgroup of a compact hydraulic excavator consists of the boom, dipper or arm, and attachment (e.g. auger, bucket or breaker). It is connected to the front of the excavator's house structure via a swing frame that allows the workgroup to be hydraulically pivoted left or right to achieve offset digging for trenching parallel with the tracks.
Pantograph wipers feature two arms for each blade, with the blade assembly itself supported on a horizontal bar connecting the two arms. One of the arms is attached to the motor, while the other is on an idle pivot. [citation needed] The pantograph mechanism, while being more complex, allows the blade to cover more of the windscreen on each ...
The free mass vibrates between the drill stem and the horn of the actuator to transmit the vibrations down the drill stem. The drill stem houses the drill bit, and the vibrations push the bit into the material. The repetitive impact on the drill stem by the free mass, creates stress pulses that transmit to the tip of the bit and into the rock.
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U.S. Army M1A1 Abrams tank with mine plow from 1995 or earlier Trojan AVRE of the Royal Engineers with full-width mine plow and fascine.. A mine plow (plough in British English) is a device designed to clear a lane through a minefield, allowing other vehicles to follow.