31-12-2020, 12:29 PM
Hi David
Closer examination of the drawing does seem to show a vertical actuation rather than horizontal action of the cam. That is the lever needs to be pulled upwards rather than in along the length of the car. Almost indicates some form of Bowden operation.
Very strange. Could it be possible that the drawing is a prototype drawing that never saw production? I’ve looked up the operation of rod brakes on the Big 7 (Cornwall site) and they have a completely different actuating mechanism that doesn’t involve a twisting cam.
I’m sure someone with more knowledge will come up with an explanation
Cheers
Howard
Closer examination of the drawing does seem to show a vertical actuation rather than horizontal action of the cam. That is the lever needs to be pulled upwards rather than in along the length of the car. Almost indicates some form of Bowden operation.
Very strange. Could it be possible that the drawing is a prototype drawing that never saw production? I’ve looked up the operation of rod brakes on the Big 7 (Cornwall site) and they have a completely different actuating mechanism that doesn’t involve a twisting cam.
I’m sure someone with more knowledge will come up with an explanation
Cheers
Howard