It was proposed in 1877 by A. B. Kempe. Length of blue bars: a

Length of yellow bars: a + a

Length of green bars: 4a

Distance between revolution joints of pink bars: 4a

Numbering:

0 for the fixed pink bar,

1 for the next pink bar, …

n for the last pink bar,

i = 1 to n

A1 is angle between bar 1 and bar 0

Ai is angle between bar i and bar 0

The mechanism maintains relation: Ai = i.A1

i.e.: A2 = 2.A1 ; An = n.A1

Theoretically it can be used for dividing an angle into n equal portions or for velocity multiplication of n times.