Ladder for use on uneven ground - has extension connectable to one side stringer

摘要

The ladder has two side stringers (1) which are connected to each other by rungs (2). The ladder can be supported in an upright position on uneven ground by a device (3) which is clamped to the lower end of one of the stringers. The device consists of a housing (3) for a threaded spindle (4) which carries a foot (7) at its lower end. The spindle can be extended or retracted by rotating a handle (5) which is mounted at the upper end of the device. ADVANTAGE - Safe use on uneven ground.