Railroad tie and tie plate with co-acting grooves and projections that prevent spike-killing of the ties

Abstract From the Canadian patent

A railroad tie and an assembly thereof with at least one tie plate wherein the wooden tie has rabbetted recesses formed in the top face thereof to receive the tie plates and these recesses are characterized by each having precut or machined grooves for receiving ridges projecting from the bottom of the tie plate. The assembly includes a wooden tie having a rabbetted recess formed in the top face and adjacent each end thereof, each recess has a flat intermediate face having a pair of grooves machined or precut therein and laterally spaced from each other lengthwise of the tie and a tie plate seating, in each recess and having a pair of ridges projecting from the bottom thereof and engaging …