GANGJERN, SPEC. FOR RAMHELFTERNA I EN KOPPLAD FONSTERRAM

摘要

A hinge for coupled window constructions comprising hinge blades and a pivot pin connecting said blades by means of cylindrical bearing burhings formed in said blades. The pivot pin is of an oval cross-section permitting a mutual displacement of said bearing blades in the direction of the smaller axis of the ovat section but preventing a mutual displacement in the direction of the longer axis of the oval section.