12th Symposium on Lift & Escalator Proceedings

CONTENTS 1. The Two Modes of Failure of Escalator Braking Systems Lutfi Al-Sharif 2. Uplifting the Safety of Aged Lifts in Hong Kong Vincent H.K. Chow, C.W. Chan, Gary K.Y. Cheung, James C.Y. Lau 3. Brake Failures on Lifts David Cooper 4. A Brief History of Lift Safety Devices 1835-1935 Lee E. Gray 5. Challenging Our Thinking Regarding Lift Incidents Roger Kahler, Nicholas Pierce 6. Future Modernizations Rory Smith