Switch machine for railway and tramway switches or the like

摘要

A switch machine for railway and tramway switches, of the type comprising a housing case for the operating units 5 which is of the same size as a tie and adapted to be installed like a tie, wherein the outer surface of the switch machine has a covering on at least part of it, which covering consists of materials having railway ballast interface surface characteristics similar to 10 concrete. 8589532_1 (GH tter) P91168.AU.1 12/01/17 Fig. 1