Page 62 - Wire Rope News & Sling Technology - August 2018
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                                                              Figure 14: Partial sectional view of an electrically connecting sheave
                                                              with wire ropes contacting it.
                                                              16, 18 by applying Ohm’s law. The controller 44 uses the
                                                              determined electrical characteristic to determine a condition
                                                              of the respective wire ropes 12, 14, 16, 18; e.g., to determine
                                                              whether the respective wire ropes 12, 14, 16, 18 are expe-
                                                              riencing wear or other damage that may cause weakening.
                                                              The controller 44 is adapted (e.g., programmed) to selective-
                                                              ly perform the functions described herein. The functionality
         Figure 13: Schematically illustrates another embodiment the system
         for positioning wire ropes.                          of the controller 44 may be implemented using hardware,
                                                              software,  firmware,  or  a  combination  thereof.  In  embodi-
         rectly or indirectly, to the first end portions 28 of at least   ments in which  the controller  44 determines an electrical
         two of the wire ropes 12, 14, 16, 18 to form a circuit with   resistance of the monitored portions 34 of the wire ropes 12,
         the monitored portions 34 of the respective wire ropes 12,   14,  16,  18, for example,  the controller  44 may  include an
         14, 16, 18. The controller 44 is operable to selectively apply   electrical current source and a volt meter. A person skilled
         a signal to the monitored portions 34 of the respective wire   in the art would be able to adapt (e.g., program) the control-
         ropes 12, 14, 16, 18 and determine an electrical character-  ler 44 to perform the functionality described herein without
         istic (e.g., an electrical resistance) thereof. For example, the   undue experimentation.
         controller 44 may selectively apply a signal having a known   In the electrical connection configuration illustrated in fig-
         electrical current to the monitored portions 34 of the respec-  ure 15, a circuit is formed by electrical connection of the con-
         tive wire ropes 12, 14, 16, 18, and may determine the elec-  troller 44 to the first end portion 28 of the first wire rope 12
         trical resistance thereof by measuring a voltage across the   and the first end portion 28 of the second wire rope 14, and
         monitored portions 34 of the respective wire ropes 12, 14,   by electrical connection of the contact portions 32 of the first




                                                       In 1924, Germany’s ‘Adolf Bleichert & Co.’ celebrated
                                                       its 50th Anniversary. By the time of this occasion,
                                                       the company had designed and built the world’s
                                                       record holding wire ropeways: Longest and highest
                                                       elevation (Argentina); Length of system over water
                                                       (New Caledonia); Steepest (Tanzania); Highest
                                                       capacity (France); Northernmost (Norway); and,
                                                       Southernmost (Chile).

                                                       Written by the great-great grandson of the
                                                       company’s founder, this book includes over 100
                                                       pictures and detailed engineering drawings that
                                                       explore the legendary company’s history, and
                                                       several of its record-holding systems.

                                                                      Available at Amazon.com for your
                                                                      Kindle or in paperback.
                                                                          Available at CreateSpace.com
                                                                          in paperback.
                                                                      ‘Like’ it on Facebook for
                                                                      relevant information and news.




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