Setting and reading height gages

The method of setting and reading a vernier height gauge is the same as for other vernier instruments .
The work to be marked out with a vernier height gauge must be set vertically on a surface plate , using an angle plate.

The height of the scribe is set with the moving slide’s fine adjusting screw. The marking out lines are then scribed onto the work’s surface by steadily moving the vernier height gauge along the surface plate (following the same procedure as for using a surface gauge).

On some vernier height gauges, the height of the main scale can also be finely adjusted . This enables measurements t start from a convenient reading , which is useful if the shape of the workpiece is such that it needs to be mounted on a parallel strip as shown below.

 

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