Static structures (e.g. – buildings) – With adjunctive means for assembly or disassembly – Structure includes tool or opening to provide access for a...
Patent
1980-10-01
1983-01-04
Bell, J. Karl
Static structures (e.g., buildings)
With adjunctive means for assembly or disassembly
Structure includes tool or opening to provide access for a...
52514, 52562, 411 33, F16B 500, F16B 1306
Patent
active
043666515
ABSTRACT:
A fixing device is disclosed which in its form described in detail is utilizable as a replacement wall tie anchorable between the two leaves of an existing cavity wall. In this form the device consists of a stainless steel bolt (2) having a stop end (3) with mounted thereon in order from the stop end a deformable sleeve (4), a rigid sleeve (5), a deformable sleeve (6), a rigid sleeve (7), a nut (8), a rigid sleeve (9), a deformable sleeve (10), a rigid sleeve (11) and a nut (12). In use the device is inserted in co-axial bores (15A, 15B) drilled from outside a building through the outer leaf (14) and into the inner leaf (13) of a cavity wall. The nut (8) is tightened to expand the sleeve (4) in the bore in the inner leaf and the nut (12) is tightened to expand the sleeve (10) in the bore in the outer leaf (14) and in this way a wall tie is placed with minimum damage to the wall. In particular the internal surface of the inner leaf is not pierced, and re-building of an unstable wall is avoided.
Duke Graham R.
Thomas Howard M.
Bell J. Karl
Newport Borough Council, of Civic Centre
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