Apparatus for the adjustment to various lengths of a belt, preferably of a safety belt on motor vehicles or the like, with a frame having a longitudinal aperture and, displaceable in the frame and transversely with respect to the longitudinal aperture, a thrust piece which has a transverse web with a...http://www.google.ca/patents/US4069554?utm_source=gb-gplus-sharePatent US4069554 - Adjustable fitting for safety belt
