Abstract: A railroad tie spike hole plugging material and method of using the same. The material includes a substantially uniform mixture of about 25-75% by volume of a granular abrasive material having a grit size in the range of about 20-100 grit and abrasive to railroad spikes, and about 25-75% by volume of a granular plastic material having a grit size of about 100 grit or less and a plastic temperature in the range of about 120.degree.-350.degree. F. The material is poured into a hole in a tie and when a spike is driven into the hole, the friction between the abrasive material and the spike generates sufficient heat to plasticize the plastic material. Upon cooling, the material firmly grasps the spike.

Abstract: A railroad tie spike hole plugging material and method of using the same. The material includes a substantially uniform mixture of about 25-75% by volume of a granular abrasive material having a grit size in the range of about 20-100 grit and abrasive to railroad spikes, and about 25-75% by volume of a granular plastic material having a grit size of about 100 grit or less and a plastic temperature in the range of about 120.degree.-350.degree. F. The material is poured into a hole in a tie and when a spike is driven into the hole, the friction between the abrasive material and the spike generates sufficient heat to plasticize the plastic material. Upon cooling, the material firmly grasps the spike.

Abstract: A rail cutting apparatus including a base adapted to be disposed on the head of a rail. Opposed, inwardly directed fingers are located on the base for disposition about the head of the rail and the fingers on at least one side of the base are movable towards the opposed fingers. A clamp is provided to clamp the fingers about the head of a rail and a pair of links having adjacent ends pivotally interconnected for relative rotation about an axis generally parallel to the direction of elongation of the head of a rail are pivotally connected to the base for limited rotation about an axis parallel to the previously mentioned axis. A cutting tool is pivotally connected to one of the links remote from the base such that when the apparatus is clamped to a rail, the cutting tool may be swung to either side of the rail to cut the rail without removing the apparatus from the rail.

Abstract: A clamping apparatus attachable to a rail for supporting a portable machine tool therefrom including exchangeable and formed clamping blocks with pre-set adjustment members to match points on the web contour between the base and head of all sizes of rail, and to accurately align and securely lock the machine tool into its proper working position relative to the rail without any location against parts of the rail subject to wear.