Patents Assigned to Europe-Levage Manutention (Elma)
  • Automatic anti-fall device for manual or motorized lifting systems
    Patent number: 4254941
    Abstract: The device is adapted to be used in a manual or motorized lifting system comprises a self-tightening jaw-block which normally lets a lifting or an auxiliary cable pass through it, whereby a releasing device, by an excessive speed of the cable relatively to the jaw-block, lets jaws clamp the cable and an interrupter stop the motors.
    Type: Grant
    Filed: June 6, 1979
    Date of Patent: March 10, 1981
    Assignee: Groupements d'Interets Economiques Europe-Levage-Manutention (ELMA)
    Inventor: Rodolphe Tanson
  • Automatic anti-fall device for power-driven lifting machinery
    Patent number: 4106753
    Abstract: The device, adapted to be associated with a motorized hauling installation, comprises a self-clamping jaws block with a safety cable passing through it onto which the load can be transferred by clamping the jaws. The jaws block is connected by means of control rods to a mobile chassis of which one end is adapted to pivot, in case of a fall, about a fixed point of the casing, this pivoting action activating an electric detector which stops the machine motor. (FIG. 1).
    Type: Grant
    Filed: July 26, 1976
    Date of Patent: August 15, 1978
    Assignee: Europe-Levage Manutention (Elma)
    Inventors: Michel Cavalieri, Francois Batreau