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AssigneePandrol Limited
InventorsTrevor P. Brown, Brian G. Conroy, Stephen J. Cox, Christopher Gardner, Roger D. Larke, Barry Marshall, Jan Svendsen
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A railway rail fastening clip (1) suitable for holding down a railway rail (2) is formed from a rod of resilient material bent so as to be approximately M-shaped in plan, the clip (1) being such that, when it is bearing on the flange of a rail (2), the longitudinal axis of a part (14) thereof, which interconnects inner legs (13, 15) of the M, lies in a reference plane which is substantially parallel, but not identical, to a plane containing the longitudinal axes of outer legs (11, 17) of the M. Such clips (1) are used with an anchoring device (5), which, as the clip (1) is installed therein, deflects the outer legs (11, 17) downwardly with respect to the inner legs (13, 15), so as to place the clip under stress.
A railway rail fastening clip comprising a rod of resilient material bent to be approximately M-shaped, the clip having a first substantially straight outer limb (11) opposite to a second substantially straight outer limb (17) and a first substantially straight inner limb (13) opposite to a second substantially straight inner limb (15), wherein each said inner limb is contiguous with a bent toe portion (14), and the first outer limb (11) is contiguous with the first inner limb (13) by means of a first bent portion (12), and the second outer limb (17) is contiguous with the second inner limb (15) by means of a second bent portion (16) such that when the clip is in a position such that the clip can be inserted into an anchoring device and when the clip is in an unstressed configuration, a longitudinal axis of the toe portion (14) lies in a plane angled above a plane having a longitudinal axis of the outer limbs (11, 17), but when the clip is in a stressed operative configuration, the longitudinal axis of the toe portion (14) lies in a plane that is substantially parallel to the plane having the longitudinal axis of the outer limbs (11, 17).
An assembly for fastening a railway rail to an underlying rail sleeper comprising a railway rail fastening clip (1) and an anchoring device (5) adjacent to the rail and secured to the sleeper (3) for retaining the clip, wherein the clip comprises a rod of resilient material bent to be approximately M-shaped, the clip having a first substantially straight outer limb (11) opposite to a second substantially straight outer limb (17), and a first substantially straight inner limb (13) opposite to a second substantially straight inner limb (15), wherein each said inner limb is contiguous with a bent toe portion (14), and the first outer limb (11) is contiguous with the first inner limb (13) by means of a first bent portion (12) and the second outer limb (17) is contiguous with the second inner limb (15) by means of a second bent portion (16) such that when the clip is in a position such that the clip can be inserted into the anchoring device and when the clip is in an unstressed configuration, a longitudinal axis of the toe portion (14) lies in a plane angled above a plane having longitudinal axes of the outer limbs (11, 17), but when the clip is in a stressed operative configuration, the longitudinal axis of the toe portion (14) lies in a plane that is substantially parallel to the plane having the longitudinal axes of the outer limbs (11, 17);
A method of installing a railway rail fastening clip into an anchoring device, wherein the clip (1) comprises a rod of resilient material bent to be approximately M-shaped, the clip having a first substantially straight outer limb (11) opposite to a second substantially straight outer limb (17), and a first substantially straight inner limb (13) opposite to a second substantially straight inner limb (15), wherein each said inner limb is contiguous with a bent toe portion (14), and the first outer limb (11) is contiguous with the first inner limb (13) by means of a first bent portion (12) and the second outer limb (17) is contiguous with the second inner limb (15) by means of a second bent portion (16) such that when the clip is in a position such that the clip can be inserted into the anchoring device and when the clip is in an unstressed configuration, a longitudinal axis of the toe portion (14) lies in a plane angled above a plane having longitudinal axes of the outer limbs (11, 17), but when the clip is in a stressed operative configuration, the longitudinal axis of the toe portion (14) lies in a plane which is parallel to the plane having the longitudinal axes of the outer limbs (11, 17), the clip further comprising a locating means (18) on each said outer limb to position the clip in the anchoring device;
Dependencies are inferred from the claim text.