초록 ▼

This invention is directed at a mobile ladder which has a two pairs of rollers. One pair of rollers moves in a first metal trough and the other pair moves in another metal trough. The metal trough are positioned close to a building wall, for example, and are in parallel relation to each other. The l

This invention is directed at a mobile ladder which has a two pairs of rollers. One pair of rollers moves in a first metal trough and the other pair moves in another metal trough. The metal trough are positioned close to a building wall, for example, and are in parallel relation to each other. The ladder can be moved in the troughs when a workman in on the ladder through use of a pulley system. This invention is also directed at a mobile scaffold which has a two pairs of rollers. One pair of rollers moves in a first metal trough and the other pair moves in another metal trough. The metal trough are positioned close to a building wall, for example, and are in parallel relation to each other. The scaffold can be moved in the troughs when a workman in on the scaffold through use of a pulley system. This invention is also directed at a work bucket that is mounted to a ladder by a pair of bracket members. This invention is also directed at a work bucket assembly that is mounted to a ladder by a pair of bracket members engaged to a bar. The bar is attached to a pulley system which in turn is attached to a work bucket allowing the work bucket to be raised and lowered by a workman in the work bucket.

대표청구항 ▼

The combination of a mobile ladder and a surface, the mobile ladder comprising a ladder, a trough, an inner trough, and a pulley system, the ladder including a bottom portion, a top portion and a first adjustable support rod, the bottom portion having a first roller and the pulley system associated

The combination of a mobile ladder and a surface, the mobile ladder comprising a ladder, a trough, an inner trough, and a pulley system, the ladder including a bottom portion, a top portion and a first adjustable support rod, the bottom portion having a first roller and the pulley system associated therewith, the first adjustable support rod having a free terminal end, associated with the ladder and the free terminal end having a third roller engaged therewith, the trough and the inner trough in spaced, substantially parallel relationship with each other and both positioned on the surface, the first roller movably associated with the trough and the third roller movably associated with the inner trough, whereby activation of the pulley system moves the first roller within the trough and the third roller within the inner trough.