h a l f b a k e r yI think, therefore I am thinking.
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The problem with window cleaner's cages that descend the sides of buildings is that they are not attached and can swing away dangerously. Rollersuckers can help, they are two wheels on either side of the cage fitted with suction cups to attach to the windows.
The cage is thus secured to the building,
yet still able to move up or down.
[link]
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Won't they get chewed up and lose effectiveness when rolling over the rough concrete and brick bits between the windows? |
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Maybe avoid using on buildings with rough concrete and brick bits? just a thought |
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Rather than traditional suckers, you could use a powered suction system that only kicked in when the undesired movement was detected. If the cage started to move too far away from the building, or started to swing dangerously then the suction kicks in. [+] |
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But wouldn't these leave marks on the windows, thus defeating the purpose of the cleaning? |
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No the marks are cleaned off by the cleaners as they descend. |
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Instead of rollers, how about caterpillar tracks? |
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