Pivot key electrical device for e.g. pulser has claws provided in two inferior flanks and fixed by screws to installation place

摘要

An inner key on a baseplate has a cylindrical component. Claws in two inferior flanks are fixed by screws to an installation place. The key is pivotable over two side projections and supported by side fastenings within the main body. The key has mobile contacts for contacting the tips of the fastenings according to applied power on the cylindrical component, which is lodged in a blow hole. A pulser has a single contact and two tips while a commutator has two end contacts and as much as three tips. Two sides form a V shape and support the symmetrical indices of the mobile contacts.