Two-wheeled tractor or walking tractor (French: motoculteur, Russian: мотоблок (motoblok), German: Einachsschlepper) is a general term understood in the United States and parts of Europe to stand for single-axle tractor, which is a single-axle tractor that is self-powered And self-propelled, can pul

Tractor rigs (also known as truck rigs, powerplants, prime movers, ten-wheelers, semi-tractors, towing trucks, semi-trucks, tractor cabs, truck cabs, tractor rigs, truck rigs, or big rigs or simply tractors, trucks , semi-trailer, or rig) is a typical heavy-duty traction engine that provides power t

An impact sprinkler (sometimes called a pulse sprinkler) is an irrigation sprinkler in which the head, under the force of outgoing water, moves in a circle, rotating on a bearing at the top of its threaded connection nut. It was invented by Orton Englehart in 1933 and soon became widely used. Many i

Active Fire Protection (AFP) is an integral part of fire protection. AFP is characterized by items and/or systems that require a certain amount of movement and response to work, as opposed to passive fire protection.Categories of active fire protectionManual fire suppression[edit]Manual fire suppres