//(Design against Static Load) Example 4.16
//Refer Fig.4.53 on page 123
//Load to be raised F (kN)
F = 5
//Length of short arm l1 (mm)
l1 = 100
//Length of long arm l2 (mm)
l2 = 450
//Tensile yield strength of 30C8 Syt (N/mm2)
Syt = 400
//Factor of safety fs
fs = 5
//Permissible bearing pressure at the pin in the lever p (N/mm2)
p = 10
//Ratio of width to thickness ratio 
ratio = 3
//Ratio of length to diameter of the fulcrum pin rf
rf = 1.25