Bridge tie fastener system

摘要

A tie fastener apparatus for attaching railroad ties to a superstructure. The apparatus comprises a threaded hook bolt, including a hook with a hook end to engage the underside of a flange of a superstructure beam. The apparatus further includes a metal member for engaging plural ties, the metal member including a tie fastener hole at plural locations, and a nut for fastening a threaded end of the threaded hook bolt for installation when the threaded hook bolt is passed through the bolt hole and optionally a washer. When the threaded hook bolt is installed, including passing a threaded end of the threaded hook bolt through the bolt hole and fastening with the nut, the hook engages the superstructure. The apparatus is installed from above the superstructure without drilling holes in ties or the superstructure, or requiring manned installation from below the superstructure.

主权项

1. A tie fastener apparatus for attaching railroad ties to a superstructure, the tie fastener apparatus comprising:
a threaded hook bolt, including a hook on one end of the threaded hook bolt, the hook including a hook end configured to engage the underside of a flange of a beam of the superstructure; a metal member for engaging two or more ties, the metal member including a tie fastener hole at one or more locations; and a nut configured to be fastened to a threaded end of the threaded hook bolt for installation when the threaded hook bolt is passed through the bolt hole and optionally through a washer; wherein, when the threaded hook bolt is installed, including passing a threaded end of the threaded hook bolt through the bolt hole and fastening with the nut, the hook engages the superstructure; and wherein the tie fastener apparatus is configured to be installed from above the superstructure without drilling holes in the ties or the superstructure and without requiring manned installation from below the superstructure.