B - Operations – Transporting – 66 – F
Patent
B - Operations, Transporting
66
F
254/119
B66F 11/00 (2006.01) E02D 37/00 (2006.01)
Patent
CA 1265120
METHOD AND APPARATUS FOR JACKING BASEMENT WALLS Abstract of the Disclosure An apparatus and method for jacking basement walls which have cracked or partially moved inward due to pressure from out- side the wall. Employing the apparatus of this invention, the jacking operation can be done easily and safely even in base- ments where there is little space along the wall in which to fit jacking equipment. The apparatus includes a brace attached at the bottom by a bracket adjacent the wall to be jacked. The brace is then set vertically against the wall. A telescoping beam is attached to the floor a short distance from the wall, so that the beam is positioned upright, parallel to the brace. The upper end of the beam is extended and attached to the floor joists overhead in the basement. A jack assembly is then slid- ably attached between the beam and the brace. The jack assembly may then be slid to the proper point to exert pressure on the brace, and in turn the wall, at the best possible spot. Once the wall is moved back into its proper place, the top of the brace is affixed to the floor joists so as to prevent the wall from moving back out of position. In the most preferred embodi- ment of the invention, the jack assembly includes a screw type jack, having a barrel. A pair of threaded shafts is screwed one into each end of the barrel. The threads on the shafts oppose each other so that turning the barrel, by use of the handles provided, results in the shafts moving apart or together, depending on which direction the barrel is turned. The distal ends of the threaded shafts terminate in ball joint rod ends to which are attached the slidable connectors for connection to the beam and brace. The ball joint rod ends are preferred so as to allow sufficient flexibility in case the beam and brace are not fully aligned with each other and to ensure that the flats of the connectors bear fully on the flats of the beam and brace, so as to avoid twisting moments.
529984
Abraham Robert S.
Koehler Dennis L.
Abe-Jack Systems Inc.
Smart & Biggar
LandOfFree
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