(57) A ladder leveller (4) comprises an arcuate member (5) which is preferably a circular
ring, at least two and preferably three or four mounting elements (6) in the form
of saddles to be connected to the ladder and through which the arcuate member may
slide, and a support frame (7) connected to the arcuate member (5) and arranged to
support the ladder on sloping ground and preferably also on other surfaces such as
steps, whereby the ladder is pivotally mounted on the ladder leveller about an axis
through the centre of the circle along which the arcuate member (5) extends. The ladder
leveller may with advantage include swivelling feet (9) and an overcentre clamping
lock (15) for added security if desired.
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