Patent ID: 8132650
Filing Date: 2012-03-13
Classification: A62B

Abstract:
1. A device for controlling descent of people and/or cargo along a cable, comprising: a contact disk, a gear-box, a brake unit, a generator of electric current, a means for activation of said brake unit, and a means for setting up the device, said device attached to an object that descends; said contact disk engaged with and movable along said cable; said gear-box having an input shaft connected to and rotated by an axle of said contact disk, and an output shaft of said gear-box; said brake unit having an axle connected to said output shaft of said gear-box including immovable and movable friction means capable to be engaged; said generator connected to and activated by said output shaft of said gear-box generating electric current which magnitude depends on speed of descent of said object; said means for activation said brake unit fed by electric current generated by said generated, converting said electric current into a force that presses said movable friction means of said brake unit against said immovable friction means which reduces speed of rotation of said contact disk; said means for setting up the device providing a stable speed of descent of said object; said means for setting up the devise includes, an adjusting spring and a bolt scaled by weight providing suitable tension of said adjusting spring and thus stabilizes the descent.