Patent ID: 7802736

Claim:
An elongate, solid, unitary railway crosstie for supporting rail tracks on a bed of stones, said tie having a first end, a second end, an inner portion between said first and second ends and a top surface, a bottom surface and a pair of side surfaces between said first and second ends, wherein at least one of said side surfaces has a portion of undulating portion so-shaped as to define a plurality of concave and convex surfaces which are embeddable in said bed of stones to effect reduced lateral and longitudinal slippage of said tie within said bed; and said tie has a first end portion adjacent and extending a first distance from said first end and a second end portion adjacent and extending a second distance from said second end wherein said first end portion and said second end portion define therebetween an inner portion, wherein said inner portion has a plurality of central portions defining a plurality of different inner widths narrower than the width of said first and said second end portions and a plurality of portions of widths inwardly decreasing from said first end portion and said second end portion, and wherein the crosstie is formed from a lignocellulose-resin material.