For access panels or doors supporting an interlocking device allowing access to mechanical parts that move for periods after the energy source is removed, a separate mechanism to delay release of the retaining or locking mechanism may be incorporated.
• Guarding may also serve to mute noise emissions through application of sound absorbing materials. Other emissions, such as lasers, ultraviolet light, bright light or welding flash, can also be safely screened to prevent potential harmful exposure.
Equipments are essential in the designing, developing, constructing, manufacturing, supplying fields of any commodity. A machine is an apparatus used for the mechanical power and has several parts, each with a definite function, which together performs a particular task.
Accidental start-up, or movement of a machine mechanism, can occur: • if control levers or buttons are bumped or knocked • if a short circuit of the control system occurs • when hydraulic or air pressure is released • when undoing retaining bolts. The word machine is derived from the Latin word machina. The modern meaning of the word is influenced due its specialized application in the military siege engines. They are also used in the stage engines, which are used in theater.
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