Safety device for a railroad switch

Safety means for trolley switches

Safety structure for a railway line

Screw anchor with conical head for rail attachment

Screw device for high-adjusting a track span

Sealing plate for railway rail clip anchoring device and...

Self adjusting thermal expansion compensation system

Self-propelled ballast cleaning machine

Self-propelled ballast cleaning machine for on-and off-track...

Self-propelled machine to dress and re-distribute railway...

Self-propelled rail unloading machine

Self-propelled track working machine

Self-propelled track working machine and method of operation

Sensor and apparatus for positioning railroad tie plates...

Separate insulator pad between a clip and a railroad rail

Shallow flangeway rail seal

Shock absorber component

Shock-protected railway crossing

Short headway switching system

Shoulder tamping lifting jack