The insert 4 has a body (fig.7,6) and a braking part (fig.7,8) with braking surface (fig.1,18) extending from a recess (fig.4,12) in a holder 2 to form a braking element 1, the braking surface spaced apart from a first face (fig.1,10) of the holder and the recess has walls (fig.4,20) to restrict insert movement, the braking element may be used in a braking system clamp (fig.9,88) which is arranged to retard movement along a rail (fig.9,84). Preferably the imperforate tungsten carbide insert 4 is retained in the rectangular recess using adhesive and/or by a deformed portion (fig.1,46) of the holder extending over a thinner insert edge (fig.6,30). The insert may comprise straight triangular cross section ridges 36 forming ridge peaks 40 separated by valleys 52 forming angles 50 between 70º-90º by a distance of between 1.2-2.5mm. Preferably the rectangular insert 4 is 20-30mm long by 8-16mm wide, with five to six ridges 36 and four to five valleys 52 10-20mm in length and peaks 40 with a radius of curvature of 0.10-0.16mm; the body (fig.7,6) may be 3-7mm deep. A method of making a braking element is also claimed.


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    Titel :

    Braking element


    Beteiligte:

    Erscheinungsdatum :

    2017-05-31


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    B66B Aufzüge , ELEVATORS



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