| Definition: | operation by means of energy stored in the mechanism itself prior to the completion of the operation and sufficient to complete it under predetermined conditions
Note 1 to entry: This kind of operation may be subdivided according to:
1. The manner of storing the energy (spring, weight, etc.);
2. The origin of the energy (manual, electric, etc.);
3. The manner of releasing the energy (manual, electric, etc.).
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