A boiler hoist 10 has a rigid elongate body 20 having a distal end for mounting in a flue hole in a building wall, and a winch 16 mounted at the opposite end to connect to a boiler for lifting or lowering the boiler. An arm 14 that slides co-axially from the interior of the body has a permanent magnet 62 located towards the distal end, and a magnetically susceptible rail 64 which extends from the distal end of the body whereby the rail is attracted to the magnet to restrict slidable movement of the arm. The arm may extend from the outside wall to the inside wall and a ram 38 may be moveable perpendicularly to the elongate body and the hoist may have a clamp 22 for clamping against the outside of the building. The apparatus may include a boiler lifting frame (66 fig.4) and a harness (68 fig.4), a wall retaining plate (110 fig.11) and a protective device (104 fig.9) to inhibit actuation of a harness release mechanism.


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    Titel :

    Flue mounted hoist system and parts thereof


    Erscheinungsdatum :

    2022-08-17


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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