... between nut and bogie helps guide the front around curves. Nigel posted: 11 Oct 2019 03:15 from: Matt M. Hi Howard, The silver carbon pick-up is the idea of Dave Nicholson from the S7 group. Dave migrated from P4 to S7. He found that he wasn't getting the quality of running he wanted with phosphor bronze wipers and DCC. After some tests proved to him that the weak point was the wipers he looked at the alternatives and with advice from other S7 modellers went to Slater's Plasticard plunger pick-ups. These worked well for a while but in a short amount of time the wheels developed a groove on the back where the plunger was contacting. This had an audible sound as well. After two years the sound stopped but that was because the groove had widened out so far and the plunger had started acting as a brake. One for each driving wheel. After some thought Dave came up with a solution that involved modifying the Slater's pick-up with a silver carbon bush from Bachman's N scale motors ...

... some SB diagrams, (eg Pryer's SRS ones) unlike TCs? What would be the function of a lever attached to a fouling bar? Surely the fouling bars attached to switches were not connected directly to the signal box themselves? John posted: 5 Feb 2009 21:57 from: micknich A Fouling Bar and a Lock Bar are used for different purposes, though mechanically almost identical. A Lock Bar as shown in the drawing I posted ex S&F cat works in conjunction with the Facing Point Lock, bolt or plunger name depends on local terminology. It's purpose being to prevent the signalman withdrawing the lock and attempting to move the points with a train passing over them. The lockbar and bolt are worked by the same lever (Blue). A fouling bar and as the name suggests is laid down within the Fouling Point of converging lines and is again lever worked. The signalman being able to work the lever proves any engine or vehicles are clear of the "Fouling Point" and would not conflict/collide with traffic on an adjacent ...