Abstract: A planetary gear assembly comprising a primary array (2) of co-axial planetary gear sets and a secondary array (3) of co-axial planetary gear sets, planetary gear set being provided with an associated gear engagement means (21), the arrangement being such that in use each planetary gear set and the associated gear engagement means are arranged for relative translational movement which is substantially parallel to the axis of the respective array of planetary gears and a rotational input drives a selected primary gear set which is engaged with the associated gear engagement means, the rotational output of the engaged primary gear set (2) being transmitted through the associated gear engagement means (21) to gear engagement means which is engaged with the associated selected secondary gear set (3), the output from the selected secondary gear set being transmitted to rotational output means (18, 49).

Abstract: This invention is directed to improvements in paper incorporating a wide elongate impermeable element, to a method of making such paper and to documents made therefrom. The method comprises the steps of first bringing an elongate, flexible, impermeable element into contact with a support surface prior to their entry into a vat of aqueous paper stock, then depositing fibres onto the support surface to form paper. The element has a width of at least 6 mm and the deposition of fibres is carried out in such a manner that as fibres are deposited on the support surface the elongate element is incorporated in the paper with regions of the element at least partially exposed at least one surface of the paper at least two sets of windows at spaced locations. The at least two sets of windows are formed by two sets of portions which are raised from the support surface relative to adjacent areas of the support surface.