A method of making a mechanism useful as {HEAD ~ a slip clutch} or {TAIL ~ brake} comprising the steps of: 
A method of making a mechanism useful as { HEAD ~ a slip clutch } or { TAIL ~ brake } comprising the steps of :
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH