Simultaneously oppositely rotating sheaves, or a chain fall, has a two sheaves upon a hexagonal axle. The first sheave receives a first line clockwise and the second sheave receives a second line counterclockwise. Upon turning the axle, the sheaves handle the lines oppositely. A signal unit regulates power delivered from a power unit to at least one motor. The power unit is preferably a battery or alternatively another source. The motor turns a gearbox that engages the axle cooperating with the sheaves. The chain fall includes an anti-two block per line. Preferably, a pulley has two outer plates and two inner plates on stubs with the first line in the center and the two second lines between an inner plate and an outer plate. A first plate and a spaced away second plate contain the components of the invention in compact form for usage by a crane.


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    Simultaneously oppositely rotating sheaves


    Beteiligte:

    Erscheinungsdatum :

    17.12.2024


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    B66D Haspeln , CAPSTANS / B66C Krane , CRANES



    SIMULTANEOUSLY OPPOSITELY ROTATING SHEAVES

    HUNSAKER STEVEN A | Europäisches Patentamt | 2021

    Freier Zugriff

    Oppositely-rotating shaft-less rim-driven propeller

    YAN XINPING / OUYANG WU / LIU ZHENGLIN et al. | Europäisches Patentamt | 2015

    Freier Zugriff

    Castor braking and stopping rotating simultaneously

    TSAI PO-CHUAN | Europäisches Patentamt | 2015

    Freier Zugriff

    Bringing in the sheaves

    Hinkamp, Clarence Nelson | Engineering Index Backfile | 1919


    LOFT BLOCK WITH ALIGNED SHEAVES

    HOFFEND III DONALD A | Europäisches Patentamt | 2018

    Freier Zugriff