safety valve lever

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• ramsbottom safety valve — ˈramzˌbäd.əm noun Usage: usually capitalized R Etymology: after John Ramsbottom, 19th century British mechanical engineer : a safety valve used especially on locomotives in which two valves are pressed down by a single spring attached to a… …   Useful english dictionary

• Safety shutoff valve — Safety shut off valves are safety valves used to close a line and stop the flow of material. Some types are manually closed. Others are automated to act when a pre set condition (such as a failure in the system) occurs.PrincipleWhen this type of… …   Wikipedia

• Valve — This article is about the flow control device. For the game developer, see Valve Corporation. For the electronic component, see Vacuum tube. For other uses, see Valve (disambiguation). These water valves are operated by handles. A valve is a… …   Wikipedia

• valve — valveless, adj. valvelike, adj. /valv/, n., v., valved, valving. n. 1. any device for halting or controlling the flow of a liquid, gas, or other material through a passage, pipe, inlet, outlet, etc. 2. a hinged lid or other movable part that… …   Universalium

• Poppet valve — A poppet valve is a valve consisting of a hole, usually round or oval, and a tapered plug, usually a disk shape on the end of a shaft also called a valve stem. The shaft guides the plug portion by sliding through a valve guide. In most… …   Wikipedia

• pot valve — noun : a safety valve resembling an inverted pot with a recess in the crown in which the valve lever is fulcrumed …   Useful english dictionary

• Steam digester — [ Denis Papin s steam digester (1679)] The steam digester (or bone digester, and also known as Papin’s digester) is a high pressure cooker invented by French physicist Denis Papin in 1679. It is a device for extracting fats from bones in a high… …   Wikipedia

• Steam locomotive — A steam locomotive is a locomotive powered by steam. The term usually refers to its use on railways, but can also refer to a road locomotive such as a traction engine or steamroller.Steam locomotives dominated rail traction from the mid 19th… …   Wikipedia

• Hydraulic hooklift hoist — PRESSURE FLOW Hydraulic Oil Pressure = Capacity All hooklift hoists are preset, at the factory, to achieve intended lifting capacity. Turning up the system s pressure will increase lifting capacity, but adjusting or tampering with hoist s… …   Wikipedia

• keyboard instrument — ▪ music Introduction       any musical instrument on which different notes can be sounded by pressing a series of keys, push buttons, or parallel levers. In nearly all cases in Western music the keys correspond to consecutive notes in the… …   Universalium

• Timeline of diving technology — This is a timeline of underwater technology. The entries marked ## are about decompression tables.[1] Contents 1 Pre industrial 2 19th century 2.1 Rebreathers appear …   Wikipedia