| http://www.w3.org/ns/prov#value | - all metal items.) Although gaps are kept as narrow as possible ??? the British Standard specification allows a maximum gap of 4 mm ??? enough gets caught there (and enough people fall and stumble, the most common accident) to make escalators significantly more dangerous than lifts.Things getting caught between the moving parts is a problem inherent in the design of the machine, and one which may n
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