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Publication of BE525553ApublicationCriticalpatent/BE525553A/xx
H01H51/04—Non-polarised relays with single armature; with single set of ganged armatures
H01H51/06—Armature is movable between two limit positions of rest and is moved in one direction due to energisation of an electromagnet and after the electromagnet is de-energised is returned by energy stored during the movement in the first direction, e.g. by using a spring, by using a permanent magnet, by gravity
G—PHYSICS
G05—CONTROLLING; REGULATING
G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
G05B11/00—Automatic controllers
G05B11/44—Automatic controllers pneumatic only
G05B11/48—Automatic controllers pneumatic only with auxiliary power
G05B11/52—Automatic controllers pneumatic only with auxiliary power in which the output signal represents a discontinuous function of the deviation from the desired value, i.e. discontinuous controllers