Safety belt apparatus for vehicles

Claim 1

A SAFETY APPARATUS FOR A VEHICLE FOR PREVENTING A PASSENGER FROM BEING THROWN OUT OF HIS SEAT UNDER THE INFLUENCE OF INERTIAL FORCES, SAID APPARATUS COMPRISING, IN COMBINATION, MAGNETIC BELT MEANS WORN BY SAID PASSENGER WITH AT LEAST A PORTION OF SAID BELT MEANS BEING LOCATED ADJACENT THE BACK REST OF SAID SEAT WHEN THE PASSENGER ASSUMES A NORMAL SITTING POSITION THEREON, ELECTROMAGNET MEANS MOUNTED IN THE BACK REST OF SAID SEAT OPPOSITE THAT PORTION OF THE MAGNETIC BELT MEANS WHICH IS LOCATED ADJACENT SAID BACK RESTM AND ELECTRIC CIRCUIT FOR ENERGIZING SAID ELECTROMAGNET MEANS, AND AN INERTIA RHEOSTAT DEVICE DISPOSED IN SAID CIRCUIT TO MAINTAIN THE CURRENT SUPPLIED TO SAID ELECTROMAGNET MEANS NORMALLY AT A LOW VALUE THEREBY PERMITTING FREE MOVEMENT OF SAID PASSENGER AND TO INCREASE THE CURRENT TO SAID ELECTROMAGNET MEANS UPON SUDDEN RETARDATION OF THE VEHICLE THEREBY STRONGLY ENERGIZING SAID ELECTROMAGNET MEANS AND RESTRAINING SAID PASSENGER AGAINST MOVEMENT THROUGH THE MAGNETIC ATTRACTION OF SAID BELT MEANS BY SAID ELECTROMAGNET MEANS.