| 摘要 |
<p>DEVICE FOR AUTOMATICALLY CONTROLLING THE BRAKING FORCE OF AN EDDY CURRENT AND/OR FRICTION TRACK BRAKE BEING INFINITELY VARIABLE BY MEANS OF SHIFTABLE OR TURNABLE PERMANENT MAGNETS A shiftable or turnable permanent magnetic eddy current and/or friction track brake which automatically reduces the friction braking forces to usable limits as the vehicle slows down. The brake is movably supported on the vehicle in the line of movement and is biased in the direction of movement by resilient means, When the brake frictionally engages the track, it moves against the biasing means which shifts the magnets to a partly braking off position to reduce the friction forces.</p> |
