T-type rod - Cross rod with 3 maintained positions
1. Pre-travel angle for rotation contact operation: 70°-49°
2. Maximum rotation angle for each maintained position: 90°
3. Average angle for the mechanical tripping: 48°
Rod - Rod and Roller
1. Pre-travel angle for rotation contact operation: 24°
2. Maximum rotation angle: 65°
Rod - Rod and Roller
1. Pre-travel angle for rotation contact operation: 49°
2. Maximum rotation angle for each maintained position: 90°
3. Average angle for the mechanical tripping: 48°
4. Maintained positions each: 90°

In order to ensure proper operations, the dimensions shall not be increased; anyhow, they can be decreased, taking into account that the closer the impact point is to the center of the head, the higher the impact and the mechanical wear of rod and shaft are.
IMPORTANT: the maximum impact speed is 1.35 m/s, refering to the ideal impact points showed in the drawing