Vibration of Spiral Spring unit is designed to determine the time period of spiral spring and its frequency. Spiral spring is a type of spring which is formed by a metallic strip wound around a rod at same point.
The apparatus consists of a shaft on which the spiral spring is attached. A metallic rod, containing masses at its edges, is used to deflect the shaft. The deflection can be measured through a protector and the extent to which the spring was deflected initially can also be found.
Specifications:

[1] Investigation of vibrations on a spiral spring-rotating mass system
[2] Axis mounted on ball bearings
[3] 2 levers with sliding weights
[4] Spiral spring
[5] Integrated angle measuring scale mounted on axis
[6] Wall mounting plate made of anodised aluminium

Ltekonline are the manufacturers of Vibration of Spiral Spring used to demonstrate engineering principles in Engineering Colleges, Engineering Schools and Applied Mechanics Lab Equipment for Engineering Teaching Lab in Universities