A review on the physiology of Insulin like Growth Factor-I (IGF-I) ... by Debnath, Surajit / Advances in Environmental Biology.
The spring piston airgun generates power using a powerful spring-loaded piston that is housed within a compression chamber. Cocking the gun (using a break barrel, side lever, or under lever mechanism) causes the piston assembly to compress the spring. When the spring is released it pushes the piston forward compressing a column of air in the chamber behind the pellet.
Clock Spring. What is the clock spring on a car. Clock spring (clockspring) is a device that contains a spiral wound wire inside which allows the airbag, horn and steering wheel buttons to make electrical, connection when the steering wheel is rotated.