ASSEMBLY OF A CONTACT ATTACHMENT AND A LAMELLA

A contact member and blade assembly has a first and optionally a second contact member, (1, 1') in the form of a hollow cap. The contact member (1, 1') can be made of a hard, e.g. sintered material or of a softer contact material which can be deformed. The member (1) has a peripheral groove engageable in an aperture formed in the blade (2). The aperture has an edge raised out of the plane of the blade (2) which forms a flange (3') for abutting in the groove in the member (1) to hold it in place. A second contact member (1') may be provided located on the opposite side of the blade (2) to the first contact member (1) to provide bilateral contacts, or the member (1) may be bent through 180 DEG to provide bilateral contacts.