E - Fixed Constructions – 06 – C
Patent
E - Fixed Constructions
06
C
E06C 7/12 (2006.01) B66F 7/06 (2006.01) B66B 9/08 (2006.01)
Patent
CA 2569329
Apparatus is provided for lifting a load 30 through a hatch 10 through a floor or ceiling. A ladder 12 is fitted to one side of said hatch and extendable through and below the hatch. A lift carriage 32 fits onto the ladder for movement upwards or downwards along the ladder. A hoist 38 is attachable to the lift carriage via cable 34 for raising or lowering thereof. A frame 40, 42 for fitting to the floor or ceiling behind the hatch 10 has a movable portion 28 provided with a support for receiving the lift carriage on hoisting said lift carriage from said ladder through the hatch, The movable portion 28 is arranged on further hoisting of the lift carriage to pivot to from a lowered position where the support is in register with the top of the ladder to a raised position in which the lift carriage becomes located above and behind the hatch. In embodiments of the invention, at least one lock may be provided having an actuator member that becomes displaced from a working position when the movable portion is in its lowered position for control of the state of said lock and that is configured to lock the lift carriage to the movable portion when the movable portion is raised and to release the lift carriage from the movable portion when the movable portion is in its lowered position.
Bu Innovations Limited
Mcfadden Fincham
Quare Daniel Harry Corby
LandOfFree
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