Tunnel shuttering
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United States of America Patent
Stats
-
Dec 14, 1993
Grant Date -
N/A
app pub date -
Jul 10, 1992
filing date -
Jul 10, 1991
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The invention relates to a tunnel shuttering, divided into two sections according to a dividing line lying in the plane of the horizontal panel of the shuttering and extending in the longitudinal direction of the tunnel. The tunnelsections may be coupled with one another by a number of connecting links, each of which having one end pivotally connected to one tunnel section about an axis standing in the longitudinal direction of the tunnel and adapted to have the other end removably 'hooked' about a projection on the other tunnel section. Furthermore an auxiliary connecting link of a shorter length is provided, the ends of which are pivotally connectable to said other tunnel section and to an intermediate point of the connecting link respectively. Due to this the tunnel shuttering may be selectively used according to the half-tunnel-mode or according to the full-tunnel-mode.
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Cited Art Landscape
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