IMPROVED FROG INSERT AND ASSEMBLY AND METHOD FOR MAKING FROGASSEMBLY

摘要

An improved cast insert for a railway frog has two extensions extending in substantially the same direction away from the body portion of the casting a nd the end of each of the extensions has a cross sectional profile corresponding to the profile of the head and web of a rail but including only one side of what would normall y be the base of a rail. A frog assembly is made by providing such an insert, machini ng each of two rails to also remove one side of the base near the end of the rail an d attaching the machined end of each of the two rails to the end of one of said extensio ns such that the sides of the rails from which the base has been machined away face one another.