Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Publication of BE445227ApublicationCriticalpatent/BE445227A/xx
H01H5/00—Snap-action arrangements, i.e. in which during a single opening operation or a single closing operation energy is first stored and then released to produce or assist the contact movement
H01H5/04—Energy stored by deformation of elastic members
H01H5/14—Energy stored by deformation of elastic members by twisting of torsion members
H01H5/16—Energy stored by deformation of elastic members by twisting of torsion members with auxiliary means for temporarily holding parts until torsion member is sufficiently strained