Subject: Clutch slipping due to adjustable spring force.

What i would like to know is:
I have a simple two plate clutch, and rotational force is being applied to it.
I want it to slip at a point that i can predetermine using a spring that 
applies force to one of the plates (the other plate is fixed in place and 
cannot move [lateral,longitudinal or rotaional])
Ignoring wear and tear, could spring force and slipping point be plotted on a 
straight line graph?

I'm asking because I think I have a cracking idea for my engineering project 
this year. If all goes well, I may even design a prototype.
Cheers, Rik

Re: Clutch slipping due to adjustable spring force.