A blade of aerofoil section, for example a blade for a rotary wing aircraft or an aircraft propeller blade, is formed of a plurality of laminations 14 of longitudinally-extending resin-impregnated fibres arranged one on top of the other, the laminations being spread apart at one end as shown in FIG. 3 and a cross-piece 15 of resin-impregnated fabric laminations placed therein. The blade shown in the particular embodiment is an air compressor blade and the laminations which are of glass fibre are moulded in a moulding machine. The moulded blade is shown in FIG. 2 and after trimming, a root block 13 of metal such as aluminium is slid over the profile portion to abut against the thickened root portion 11.


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    Title :

    Month in the Patent Office



    Publication date :

    1959-06-01


    Size :

    1 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English



    Month in the Patent Office

    Emerald Group Publishing | 1960


    Month in the Patent Office

    Emerald Group Publishing | 1958


    Month in the Patent Office

    Emerald Group Publishing | 1957


    Month in the Patent Office

    Emerald Group Publishing | 1956


    Month in the Patent Office

    Emerald Group Publishing | 1955