E - Fixed Constructions – 04 – G
Patent
E - Fixed Constructions
04
G
72/153
E04G 11/36 (2006.01) E04G 17/16 (2006.01)
Patent
CA 1172057
A B S T R A C T A drop-head unit for supporting shuttering members used in the construction of concrete floors and/or ceilings which is movable between supporting and stripped positions along a shank. The shank has a slot extending along its length and a ledge member formed on both sides of the wedge engage a shoulder formed at the sides of the slot. When the wedge is withdrawn, its ledge falls down the slot. Means are provided to hold the wedge captive in the slot and to correctly position the drop-head in its supporting position.
403797
Acrow (engineers) Limited
Fetherstonhaugh & Co.
LandOfFree
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