公开(公告)号：US11486099B2

公开(公告)日：2022-11-01

申请号：US16549422

申请日：2019-08-23

申请人： NORDCO INC.

发明人： Bruce Michael Boczkiewicz ,  Nicholas Edward Wojnar ,  Gregory John Long ,  Neil Patrick Creegan

IPC分类号： E01B29/32 ,  E01B29/10

摘要： A plate retainer apparatus is provided for use on a railroad track with a tie exchanger having a main frame, the apparatus configured for gripping and retaining rail tie plates to a rail during a rail tie exchange process. The plate retainer apparatus includes a plate retainer workhead constructed and arranged for movement independent of that of the main frame. Included on the workhead is a pair of workhead modules, each module associated with a rail of the track and configured for retaining a single tie plate associated with a target tie at a time. Each workhead module is movable relative to the main frame independently of each other.

公开(公告)号：US11453981B2

公开(公告)日：2022-09-27

申请号：US16660629

申请日：2019-10-22

申请人： NORDCO INC.

发明人： Patrick Joseph Pritzl ,  Kyle Matthew Neubauer ,  Gregory John Long ,  Ryan Matthew Holschbach ,  James W. Boyd

IPC分类号： E01B29/32 ,  E01B29/10

摘要： A rail tie plate retaining workhead is provided for use in conjunction with a rail tie replacement machine moving along a railroad track having a pair of rails. The workhead includes a workhead frame configured for movement along the track relative to the rail tie replacement machine, and a pair of plate retaining frames, each frame associated with a respective one of the rails, and being connected to the workhead frame. Each plate retaining frame has at least one rail guide wheel connected to the retaining frame using a fluid powered cylinder, the wheels vertically reciprocating between an extended position, in which the workhead is raised to a travel position, and a retracted position, in which the workhead is lowered to a working position in operational relationship with at least one targeted rail tie plate.