(57) A spiral staircase including a handrail (1) of tubular flexible construction together
with a clamping means (2) comprising a cradle support (8) and an endless loop of cable
(9) to mount the handrail (1) to a baluster (3). The cable (9) is passed over the
handrail (1), the two runs of the loop (9) being located in a spiral groove (6) of
the handrail so that the loop (9) does not stand proud of the handrail (1). When the
cable (9) is tensioned the handrail (1) is firmly clamped to the cradle.
The handrail being flexible and in need of alignment it is desirable that the connection
between the vertical balusters and the outer ends of the stair treads of the spiral
staircase provides for vertical adjustment of the balusters relative to the stair
treads. Therefore, there is also provided a baluster mounting bracket including an
elongate member (40) comprising an end part (40a) adapted to be slidably mounted in
a channel or groove provided in the outer edge of a stair tread (4), a central collar
part (40b) slidably engagable with a vertical baluster (3), the other end part (40c)
of said member (40) being adapted to be clamped to said channel or groove, and clamping
means (42, 43, 44) for clamping the other end part (40c) of said member (40) to said
channel or groove, thereby to clamp the baluster (3) to the stairtread (4).
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