Index plate

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a graduated circular plate, or one with circular rows of holes differently spaced; used in machines for graduating circles, cutting gear teeth, etc.

See also: Index

References in periodicals archive ?
Tenders are invited for Supply of index plate name plate monogram plate as per hmt specification as appended to technical document please see technical document note:-drawing will be available on request.
The QD Ambi Sling Mount replaces the factory index plate and enables you to run a single-point and/or two-point sling.
The UCIW (Ultra-Compact Individual Weapon) kit comes with the stock, receiver extension, index plate, recoil spring and castle nut.
Other safety features include an integrated electric position indicator in the mounting flange that visually shows whether the valve is open or closed and an index plate that clearly indicates the angle opening in degrees.
The 72-position index plate allows hard index every five degrees and there is a built-in sine bar for setting angles between hard index locations.
Concerning cycle times, the application of rotating mold systems (rotary platforms, rotary molds, rotary crosses and index plate molds) would be an advantage.
The crank arm pins engage and drive the index plate.
The system to be shown utilizes a Boy 60 E horizontal injection press with a four-cavity, hot-runner mold with an index plate that rotates 180[degrees] to transfer injection molded preforms to the blowing station.