Track mounting assembly and sound-damping system therefore

A sound-damping mounting for a rail upon a rigid body, comprising:

• a frame supported on said body and elongated in a direction transverse to said rail while lying below said rail, said frame being composed of rigid material and having elements forming a continuous periphery around an opening, at least some of said elements extending generally transverse to said rail, said elements having flanks including an angle with the vertical between 5.degree. and 85.degree. and inclined upwardly and outwardly;
• a rigid member underlying said rail and having at least a portion received in said opening and of a shape geometrically similar to that of said opening with flanks parallel to the corresponding flanks of said opening but spaced therefrom;
• at least one rubber-metal plural-layer sound-damping member disposed between the spaced apart flanks of said rigid member and said frame while bridging the space between them and having its layers inclined at said angle, said rubber-metal sound-damping member extending at least along the elements generally transverse to said rail;
• and
• means for securing said rail to said rigid member.