Fire escape – ladder – or scaffold – Traversing – track-mounted
Patent
1996-12-17
1999-11-09
Chin-Shue, Alvin
Fire escape, ladder, or scaffold
Traversing, track-mounted
182 3, A62B 3700
Patent
active
059795999
ABSTRACT:
A cable or other track is supported at points along its length by track support brackets that define and shape the course of the track, providing corners, curves, and other direction changes. A track-traveling element is provided that can travel along the track unimpeded by the track supports. The track support and the track-traveling element are formed to cooperate with each other so that the track-traveling element can pass by the track support brackets without manipulation. The track support has an arcuate arm having a center of curvature and an arm radius defining a circular segment. The track-traveling element has a passageway surrounding the track, a pivoting axis, and a slot communicating with the passageway. The slot is spaced from the pivoting axis by a distance substantially equal to the arm radius of the track support. The pivoting axis and the arcuate arm's center of curvature are arranged to be coincident within a predetermined tolerance, so that the slot passes the arcuate arm despite pivoting of the track-traveling element throughout a substantial range of angles about the pivoting axis. The system can be used for various purposes including carrying loads in a conveyor system, protection of a worker in a fall-arrest system, controlling an animal in an animal-tethering system, and supporting and guiding draperies.
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Chin-Shue Alvin
Touw Theodore R.
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