INSULATOR FOR RAILWAY FASTENING CLIP AND RAILWAY RAIL FASTENING CLIP FOR USE THEREWITH

摘要

An electrical insulator (10) for use with a rail fastening clip (20) comprises a contact member providing on one side a substantially flat rail contact surface (11A) for contacting a foot (31) of a rail (30) and on the opposing side a clip contact surface (11B) for contacting a rail bearing surface (25A) of a bearing portion (25) of the clip (25), the insulator (10) also having retaining means (14) for retaining the insulator on the clip and stop portions (131A, 131B) for limiting rotation about the longitudinal axis of the bearing portion (25) of the clip (20) wherein the clip contact surface (11B) of the insulator (10) is convex, in a vertical plane which is perpendicular to the longitudinal axis of the bearing portion of the clip. A rail fastening clip (20), suitable for use with the insulator (10) has a bearing portion (25) having a flat rail bearing surface (25A), wherein a detent (26), extending laterally with respect to the longitudinal axis of the bearing portion (25), is formed in the flat rail bearing surface (25A), at a location spaced from a free end of the bearing portion of the clip, for engaging a corresponding abutment surface (12A) of the insulator to be retained on the rail bearing portion (25) of the clip (20).