Dear Abo Khalid.
If potentially useful I have the following books on the subject. Let me know I can upload on 4shared.

1. Elevator Traffic Handbook: Theory and Practice Author Gina Carol Barney Publisher Spon Press, 2003, 471pages, 5 Mb

2. Installation Manual: Basic field practices for installation of elevator and escalator equipment Author Kermit Kraus. 1964 533 Pages, 45 Mb

3. Lifts, elevators, escalators and moving walkways/travelators, Author M.Y.H. Bangash, T. Bangash Taylor & Francis 2007 375 pages 14 Mb