Switch Layouts. Showing Graphically the Leads, Offsets And All Dimensions Needed for Locating Frogs of All Numbers And Curves in All Switches in Common Use. Curve Easements. Tables of Angles, Chords And Deflections for Easing the Transition From a Tangent
Switch Layouts. Showing Graphically the Leads, Offsets And All Dimensions Needed for Locating Frogs of All Numbers And Curves in All Switches in Common Use. Curve Easements. Tables of Angles, Chords And Deflections for Easing the Transition From a Tangent
Book digitized by Google from the library of University of California and uploaded to the Internet Archive by user tpb. Mode of access: Internet
Write Review:
Guest
Read Also
7 / 10
User Reviews: