in fig3 and 4 shows two separate plates 24 and two spikes 10 on the right to install the spike shown in fig1 and 2 the tie plate 4 is applied to the tie 6 and positioned for gauge in accordance with standard procedures it is then secured to the tie 6 by applying only two standard spikes per plate in openings 8 one on each side of the plate 4 after placing the rail 2 on the tie plate 4 plate 24 with springs 30 attached is positioned over plate 4 so that the openings 26 in plate 24 are aligned with openings 28 in plate 4 this may be determined visually or by use of a locating pin a spike 10 complete with wedge 16 is then inserted in the aligned openings 26 and 28 with wedge 16 inserted first and with the lug 22 pointing away from the rail spike 10 is driven home until the top of lug 22 prevents the wedge 16 sinking further the spring 30 fastened to plate 24 is slightly compressed during this due to the pressure of head 12 of spike 10 in the embodiment of fig3 and 4 that is where spring 30 is not present plate 24 is fitted in an identical manner again ensuring that opening 26 is aligned with opening 28 the angle of the plate 24 without spring 30 is such that the plate 24 comes into direct contact with the rail without use of an intervening spring 30 to remove the spike it is necessary to shear the lug 22 tap the rod 20 in a downward.