R1a. Freely oscillating mass at horizontal impact
              
              
              
             
          
            
              
                R1b. Freely oscillating mass at vertical impact
              
              
              
             
          
            
              
                R2a. Downwards pivoting mass with counteracting driving torque at horizontal impact
              
              
              
             
          
            
              
                R2b. Downwards pivoting mass with counteracting driving torque at vertical impact
              
              
              
             
          
            
              
                R3a. Downwards pivoting mass with driving torque at horizontal impact
              
              
              
             
          
            
              
                R3b. Downwards pivoting mass with driving torque at vertical impact
              
              
              
             
          
            
              
                R4a. Upwards pivoting mass with driving torque at horizontal impact
              
              
              
             
          
            
              
                R4b. Upwards pivoting mass with driving torque at vertical impact
              
              
              
             
          
            
              
                R5. Horizontally pivoting mass without driving torque
              
              
              
             
          
            
              
                R6. Horizontally pivoting mass with form fit driving torque
              
              
              
             
          
            
              
                R7. Horizontally pivoting mass with frictional driving torque