60 — 67

Equation F.31. Keys f2, f3, f4

Curve 60. Key for inside look revolving 180º f2
Curve 61. Key for inside look revolving 270º (moving) f3
Curve 62. Key for inside look revolving 270º (stationary) f4


Equation F.32. Tape Σ1


Equation F.33. 2 centre-handle turning-locks Z3Z4, key f2, tape Σ3


Equation F.34. Padlock З0


Equation F.35. 2 door straps d0, d1, 2 locks З1, З2


Equation F.36. 2 door straps, pawl, padlock, key (d0З1d2)