Click on PDF links below for more information G.C. Reiter Old Catalog Book PDF Mechanical Bells PDF The W.L. Jenkins Company manufactures foot operated mechanical bells for cranes, rail cars and other vehicles. The W.L. Jenkins Mechanical Bells can be used in a variety of applications including: Manufacturing Facilities, steel mills, mining operations, refineries and foundries. Transportation ferries, amusement park rides, trolley cars and trams, hoists, rail cars, tow motors and maintenance vehicles.