Multi-section ladder for scaling poles

A portable, multi-section ladder for scaling poles, said ladder comprising a main section having at least one extension section linked thereto, each section having a vertical spar and a series of steps mounted thereon at spaced positions, the upper end of the main section being provided with a tiltable open-loop assembly adapted to engage a pole to be scaled and to harness this section thereto when a downward force is exerted thereon, the lower end of each section terminating in a coupling head, a latching piece attached to the upper end of the extension sections adapted to engage the coupling head in the section thereabove, whereby the main section and the extension sections may be interlinked, said open-loop assembly being constituted by a block hinged to the upper end of the spar of the main section, a crook-shaped arm secured to the free end of the block and extending forwardly therefrom to embrace one side of the pole, and a yoke mounted on a stub arm secured to the free end of the block and extending downwardly therefrom in a plane spaced from said crook-shaped arm, said yoke being adapted to rest against the opposite side of the pole, and a long rope tied to said stub arm for tilting said assembly to effect disengagement thereof from said pole, whereby the main section may be released from said pole by pulling on said rope from a ground position.