ATTACHMENT MEANS FOR A SIGNALLING DEVICE AND METHOD OF IDENTIFICATION

摘要

The present invention provides a fog signal device comprising a fog signal body (2) containing explosive and magnetic attachment means (6) for holding the body (2) onto a railway rail (3). A device (1) for attaching a disc shaped fog signal body (2) to a railway rail (3) comprises a first layer (6) and a second layer (8). The first layer (6) is an annular shape and is made from an anisotropic magnetic material. The second layer (8) is a circular disc shape and is also made from an anisotropic magnetic material. The first layer (6) is placed on top of the second layer (8). The first layer (6) and second layer (8) are naturally attracted towards each other due to the magnetic properties of the respective layers. An additional adhesive may be placed between the contacting surfaces to provide a better bond between the layers. When the two layers (6, 8) are placed together a circular recess is formed. The fog signal body (2) is placed on the first layer (6) of the device (1). The fog signal body (2) comprises a metal casing that contains explosive material. The fog signal body (2) is naturally attracted to the magnetic device (1).