I think if you search "clutch bearings" and "clutch springs" you might find what you are looking for. Commercial copiers are one place to find the springs (of a small size) any bearing supplier will have clutch bearings. ( they are kinda pricey though )szc said:
That kinda twisted my brain ( but that's easy to doszc said:
) but I'll think about it a bit, I suspect someone will answer before I figure it out 
, just hang tight. A single direction applied force locking mechanism is a mechanical system that allows for the application of force in one direction only. This means that the mechanism will prevent any movement or force in the opposite direction, providing a secure lock.
A single direction applied force locking mechanism typically consists of two components - a locking element and a mating element. The locking element is designed to engage with the mating element in a way that allows for force to be applied in one direction, but prevents any movement in the opposite direction.
One of the main advantages of using a single direction applied force locking mechanism is its simplicity and reliability. It is also relatively easy to manufacture and can be used in a variety of applications, such as securing doors, windows, and other moving parts.
Some common examples of single direction applied force locking mechanisms include latches, bolts, and cam locks. These can be found in everyday objects such as lockers, cabinets, and safes.
While single direction applied force locking mechanisms are generally effective, they may not be suitable for all applications. For example, they may not provide enough security for high-risk situations and may require regular maintenance to ensure proper function. Additionally, they may not be suitable for use in environments with extreme temperatures or corrosive materials.