Figure 1: Bevel Protector.
A bevel protractor is an angle measuring instrument, consisting of the following parts as shown in figure 1
- A fixed measuring blade
- An adjustable blade
- Body and
- Turret
Working of Bevel Protector
A bevel protractor is used to measure angle between the two faces of a component. The fixed measuring blade and the adjustable blade is set along the faces of the component whose angle is to be measured. as shown in figure 1. The blades are then locked by a locking nut, to tighten the component for accurate measurement. The body consists of a circular scale and extends to form one of the blades. The circular scale can measure angles upto 360 degrees. The adjustable blade also slides and can be locked at any position along its length. to the rotating turret mounted on the body. Thus, accurate angular measurements of any component can be easily done by a bevel protractor.