AU663629B2

AU663629B2 - An insert for a rail fastening system

Info

Publication number: AU663629B2
Application number: AU51808/93A
Authority: AU
Inventors: Robert John Rex
Original assignee: General and Railway Supplies Pty Ltd
Current assignee: General and Railway Supplies Pty Ltd
Priority date: 1993-02-19
Filing date: 1993-11-19
Publication date: 1995-10-12
Anticipated expiration: 2013-11-19
Also published as: AU5180893A

Description

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C C *I C f *fttft AN INSERT FOR A RAIL FASTENING SYSTEM TECHNICAL FIELD The present invention relates to rail fastening systems and more particularly but not exclusively to resilient rail fastening systems such as those described in Australian patent 607644. More particularly the present invention relates to an insert to be embedded in a concrete sleeper or tie.

BACKGROUND OF THE INVENTION Concrete ties have embedded in them inserts which engage the "spike" or "stud". Alternatively, the spike or stud is directly embedded in the concrete.

The problem with the above discussed rail fastening systems is that the tie must be discarded if the rail gauge is changed.

It is the object of the present invention to overcome or substantially ameliorate the above disadvantages.

SUMMARY OF THE INVENTION There is disclosed herein an insert to be embedded in a concrete rail tie having an upper surface, said insert including: a base to be embedded in the concrete, said base having a hollow upper part and a lower stem; and a rail support portion above said hollow part and co-operating therewith to generally enclose a chamber, said support portion being intended for location adjacent said surface, and wherein said upper part has a pair of apertures communicating with said chamber and through which 25 a fastener may pass to be secured to said insert by engaging beneath said support portion, said apertures being positioned to accommodate rails of different gauge.

BRIEF DESCRIPTION OF THE DRAWINGS A preferred form of the present invention will now be described by way of example with reference to the accompanying drawings, wherein: Fig. 1 is a schematic top plan view of an insert for a concrete tie; Fig. 2 is a schematic part section side elevation of the insert of Fig. 1, and Fig. 3 is a schematic end elevation of the insert of Fig. 1, W-AgC the 1 ckt~ AO~a-:Ek DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT In the accompanying drawings there is schematically depicted an insert 10 to be embedded in a concrete tie having an upper generally AV planar surface 11. The insert 10 has a base 11 which is embedded in the ilw WI i i r -2concrete, which base 11 includes an upper hollow portion 12 and a lower stem 13.

Attached to the upper portion 12 is a rail support 13, which in this embodiment is of a plate configuration. The support 13 has an upper generally planar surface 14 upon which the rail rests, and which is generally co-planar with the top surface 11 of the concrete tie.

The upper part, being hollow, has a chamber 15 which is substantially closed by the support 13, apart from a pair of apertures 16. The apertures 16 enable a fastener to pass therethrough, such as a fastener disclosed in the previously mentioned Australian patent. The apertures 16 are spaced from the edge 17 so that rails of different gauges may be accommodated. For example, the rail may be laid conforming to a first gauge and using one of the apertures. Should the gauge change, the other aperture 16 may be employed. The apertures are square or rectangular in configuration.

The fasteners (studs or spikes) engage the under surface of the support 13, and therefore project into the chamber i I

I

C I t STALLMM/992t

Claims

1. An insert to be embedded in a concrete rail tie having an upper surface, said insert including: a base to be embedded in the concrete, said base having a hollow upper part and a lower stem; and a rail support portion above said hollow part and co-operating therewith to generally enclose a chamber, said support portion being intended for location adjacent said surface, and wherein said upper part has a pair of apertures communicating with said chamber and through which a fastener may pass to be secured to said insert by engaging beneath said support portion, said apertures being positioned to accommodate rails of different gauge.

2. The insert of claim 1, wherein said rail support portion is generally planar in configuration.

3. The insert of claim 1 or 2, wherein said upper portion has a generally horizontal edge, and the apertures are spaced from said edge by i different distances.

4. The insert of claim 1, 2 or 3, wherein said apertures are square or rectangular in configuration. A rail fastening insert, substantially as hereinbefore described with reference to the accompanying drawings. DATED this NINETEENTH day of NOVEMBER 1993 General and Railway Supplies Pty. Ltd. Patent Attorneys for the Applicant S l SPRUSON FERGUSON 1 -T /i "i S_STA/LMM/992t AN INSERT FOR A RAIL FASTENING SYSTEM ABSTRACT A rail fastening insert (10) to be embedded in a concrete railway tie. The insert (10) has a base (11) which is embedded in the concrete, which base (11) includes an upper hollow portion (12) and a lower stem Attached to the upper portion (12) is a rail support (13) having two apertures (16) through which a fastener (stud or spike) will pass to secure the rail to the insert Figure 2 ~iii: t r.r. oc ii

9. 4 4*4444 4 i £4.44. r f i j i i t 1 i ;ii ii Fig. 2 STALM/'992t Ii