Fire escape – ladder – or scaffold – Combined
Patent
1997-12-03
1998-11-10
Chin-Shue, Alvin
Fire escape, ladder, or scaffold
Combined
182108, E06C 748
Patent
active
058330283
ABSTRACT:
A roller device for ladders which facilitates moving the ladder along a wall vertically to accommodate changes in the ladder's angular inclination thereagainst. The roller device has a pair of sleeves that are removably positioned over the respective top ends of the ladder's rails. Each of the sleeves has an internal rail stop and a wheel rotatably positioned on its respective ends. One of the sleeves has a wheel brake to prevent "roll back" of the ladder once it is positioned against the wall with the attached roller device.
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Ramsey Gregory D.
Ramsey Jeffrey R.
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