Scaffold propulsion unit
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United States of America Patent
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Oct 9, 1984
Grant Date -
N/A
app pub date -
Sep 30, 1982
filing date -
Sep 30, 1982
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A propulsion unit for span scaffolds having vertical castered columns at the four corners thereof. The propulsion unit includes a first elongated frame member extending between the columns on one side of the scaffold, a second elongated frame member extending between the columns on the other side of the scaffold, and a third, wheeled, frame member extending crosswise between the first and second frame members, the third frame member being mounted on the first and second frame members for limited free vertical movement relative thereto.
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