For bow collectors and pantographs, this is done by having two contact wires run side by side over a length about four wire supports: a new one dropping down and the old one rising up, allowing the pantograph to smoothly transfer from one to the other.
A new one drops down and the old one rises up, allowing the pantograph to smoothly transfer from one to the other. For bow collectors and pantographs, this is done by having two contact wires run side by side over a length about four wire supports.
For bow collectors and pantographs, this is done by having two contact wires run side by side over a length about four wire supports. A new one drops down and the old one rises up, allowing the pantograph to smoothly transfer from one to the other.
For bow collectors and pantographs, this is done by having two contact wires run side by side over a length about four wire supports. A new one drops down and the old one rises up, allowing the pantograph to smoothly transfer from one to the other.