Oscillating barrels including electrical contact means

Claim 1

A galvanizing device comprising, in combination: a. a supporting frame; b. an oscillating drum mounted in said supporting frame for reciprocating, angular movement, said drum having passage apertures for a galvanic medium formed in the walls thereof; c. said oscillating drum in cross-section having several wall portions connected together so as to define a heart-shaped filling and emptying opening; d. said wall portions with their adjacent longitudinal edges each being rigidly secured to a reinforcing profile that extends over the whole length of said drum; e. said wall portions and said reinforcing profiles being rigidly secured to the end faces of said drum thereby closing said oscillating drum; f. said reinforcing profiles at the same time forming bearing points for contact rod assemblies located within said oscillating drum, said reinforcing profiles enclosing part of the cross-section of said contact rod assemblies; g. over the length of the drum two contact rods being arranged in rectilinear extension, said two contact rods being detachably secured by a bridge made of a non-conduting material and a screw connection to the inside surface in the region of said reinforcing profiles; h. the ends of each of the said contact rods extending through said end faces of the drum and being connected to an insulated contact member, having an electric coupling member, secured to the outer surface end wall of the drum; i. said contact member being formed by a metal plate member extending partially about the pivotal axis of the drum and an insulating layer enclosing the plate member with the exception of the contact points on all sides.