Patent ID: 11897523
Assignee: WESTERN-CULLEN-HAYES, INC.
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 6:
7. A derail assembly for derailing a wheel of a railway vehicle movable along a rail, said rail having a substantially straight linear axis, a field side and a gage side, wherein said rail is securely and transversely mounted on a top of spaced ties, said ties each having an upright top side and a bottom side, said rail having an upper head and a lower flange interconnected by a central upright, unitary riser, said derail assembly comprising, in combination:
(a) a box assembly, said box assembly including:
(i) a mounting plate dimensioned to be positioned on and attached onto the upright top side of two spaced ties, said mounting plate comprising a planar plate generally horizontal member having a lateral dimension greater than the spacing of said spaced ties,
(ii) first and second laterally spaced, vertical guide plates mounted on said mounting plate intermediate lateral sides of said mounting plate for positioning to a gage side of a rail, said laterally spaced, vertical guide plates positioned no greater than spacing the ties, said first and second guide plates having a substantially identical profile and including one or more follower openings through the guide plates;

(b) an elongate separate shoe including an elongated rigid derail plate, an upper side and an underside, said upper side positioned for and capable of contact with a rail gage side;
said elongated rigid derail plate further including a rail wheel entrance end and a wheel exit end;
said shoe further including an attached, transversely projecting pivot panel arm having a pivot axis, said arm including axially, transversely projecting pivot members for engagement with and following follower openings of said first and second guide plates to engage or disengage the derail plate upon movement of the arm transversely toward or from the gage side of the said rail; and
(c) fasteners for attaching the mounting plate on spaced ties;
wherein each vertical guide plate has an upper front end with a reduced height front section that is dimensioned to avoid interfering with the shoe when the shoe is located on a rail.