Draw a detailed diagram of screw gauge and explain its different parts.
Draw a detailed diagram of screw gauge and explain its different parts.
The diagram showing different parts of a screw gauge:
The screw gauge is an instrument used for measuring accurately the diameter of a thin wire or the thickness of a sheet of metal. It consists of a U-shaped frame fitted with a screwed spindle which is attached to a milled head. Parallel to the axis of the milled head, a scale graduated in mm is engraved. This is called pitch scale. The head of the screw has a ratchet which avoids undue tightening of the screw. On the milled head, there is a circular scale known as a head scale which is divided into 50 or 100 equal parts. When the screw is worked, the sleeve moves over the pitch scale.A stud with a plane end surface is fixed on the ‘U’ frame exactly opposite to the tip of the screw.
The diagram showing different parts of a screw gauge:
The screw gauge is an instrument used for measuring accurately the diameter of a thin wire or the thickness of a sheet of metal. It consists of a U-shaped frame fitted with a screwed spindle which is attached to a milled head. Parallel to the axis of the milled head, a scale graduated in mm is engraved. This is called pitch scale. The head of the screw has a ratchet which avoids undue tightening of the screw. On the milled head, there is a circular scale known as a head scale which is divided into 50 or 100 equal parts. When the screw is worked, the sleeve moves over the pitch scale.A stud with a plane end surface is fixed on the ‘U’ frame exactly opposite to the tip of the screw.
