| 摘要 |
In a system for the movement of roofing materials from the ground to the roof's surface, it is common that a gas powered lifting carriage system be used to lift such things as roofing shingles to the roofs edge. Although efficient, it is limited to delivering shingles to the roofs edge only. Where-by an unsafe practice of descending to the roofs edge to retrieve the shingles and carry them up to the work area is performed by the roofer in an unsafe manner. In this invention the assembly of roof hooks, four foot ladder / rail transport sections, pulley and harness system, D.C. drive gear motor, transport cable and carriage assembly work together to further the advancement of shingles to the roof to p. Thus providing a safer, less strenuous movement of shingles to a work area .
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