Boots – shoes – and leggings
Patent
1990-01-05
1992-07-28
Smith, Jerry
Boots, shoes, and leggings
1985021, 198323, 198329, 1041731, B61B 1206, B65G 2300
Patent
active
051345714
ABSTRACT:
A controlled tension cable transport system is disclosed, comprising a pulley with fixed axis and a second pulley whose axis occupies a position which is normally fixed during operation. Four sensors measure the tension of the cable during a previous test phase, with the installation off load, and a computing and control assembly compares the measurement results obtained with admissible limit values, for allowing or preventing operation of the installation. Preferably, the computing and control assembly permanently compares the tension of the cable and the torque of the pulley with respect to admissible threshold values during operation of the installation.
REFERENCES:
patent: 3809832 (1974-05-01), Burger
patent: 4003314 (1977-01-01), Pearson
patent: 4470355 (1984-09-01), Kunczynski
patent: 4508205 (1985-04-01), Aulagner et al.
patent: 4522285 (1985-06-01), Salmon et al.
patent: 4782761 (1988-11-01), Asberg
Asberg Bengt
Bottollier Christophe
Falque Alain
Lo Allen M.
Smith Jerry
Von Roll Transportsysteme AG
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