08-07-2019, 11:02 PM
Yes Ian, you've got it correct.
The rods went straight from the brake levers on the end of the cross shaft to the levers on the back plate.
The fulcrum on the cables is important because it makes the rear section of the cable follow the line of the spring.
With the rods as they were the flexing of the spring makes the direct distance between the levers change.
In this case with heavy driver on one side the car was at an angle even before it hit any bumps. I think that the back brakes were being applied at random as the rear wheels went over bumps and the springs rebounded.
The late Ruby brakes are laid out so that the rods move in parallel to the torque tube so there's no interaction between brakes and suspension.
The rods went straight from the brake levers on the end of the cross shaft to the levers on the back plate.
The fulcrum on the cables is important because it makes the rear section of the cable follow the line of the spring.
With the rods as they were the flexing of the spring makes the direct distance between the levers change.
In this case with heavy driver on one side the car was at an angle even before it hit any bumps. I think that the back brakes were being applied at random as the rear wheels went over bumps and the springs rebounded.
The late Ruby brakes are laid out so that the rods move in parallel to the torque tube so there's no interaction between brakes and suspension.
Jim