公开(公告)号：US20230001968A1

公开(公告)日：2023-01-05

申请号：US17366434

申请日：2021-07-02

申请人： Pandrol Limited

发明人： Stephen John Cox ,  John David Spencer ,  John Phillip Porrill

IPC分类号： B61L25/06 ,  G01N21/88 ,  G06T7/00 ,  G06K9/62 ,  G06K9/00 ,  G06N3/08

摘要： Methods of assessing wear of an electrical insulator and rail pad of an assembled rail fastening system utilize data from a 3D scan of the system to derive measurements of the system from which wear of the side post of the electrical insulator, or wear of the rail pad beneath the rail, may be assessed.

公开(公告)号：US20190242067A1

公开(公告)日：2019-08-08

申请号：US16320332

申请日：2017-07-25

申请人： Pandrol Limited

发明人： Stephen John Cox ,  John David Spencer

IPC分类号： E01B9/30 ,  E01B9/10

CPC分类号： E01B9/303 ,  E01B9/02 ,  E01B9/10 ,  F16B5/02 ,  F16B31/04 ,  F16B35/04 ,  F16B35/048

摘要： An improved screwed fastening system for railway rails is proposed to allow rail fastening clips to be moved onto and off the rail more easily, facilitating track installation and maintenance. One improvement comprises providing in the screwed fastening system a clip guiding device, for guiding the rail fastening clip whilst it is being driven, which has an asymmetrically-located hole for receiving the screw-threaded shank of a screwbolt. Another improvement comprises providing in the screwed fastening system a rail fastening clip and screwbolt assembly which have inter-engaging driving portions. In each case, rotation of the screwbolt in one direction brings about translational movement of the rail bearing portion of the clip away from the screwbolt, and rotation of the screwbolt in the opposite direction brings about translational movement of the rail bearing portion of the clip towards the screwbolt.