Input: blue wedge. Vertical force F1 is applied to it.
Output: green slider. Axial force F2 is applied to it .
Brown roller contacts with the blue wedge.
Pink rollers contact with the green wedge.
F2 = F1. tg(B) / tg(A)
A: angle of the blue wedge.
B: angle of the green wedge.
In this video A = 30 deg.; B = 60 deg. then F2 = 3.F1
If B is smaller and A is larger, F2 can be considerably larger than F1.
For example: A = 15 deg.; B = 75 deg. then F2 = 14.F1