mechanical_coupling=nodding_donkey (Q22448)
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A pump jack coupling intended to transform rotating movement into reciprocating one.
| Language | Label | Description | Also known as |
|---|---|---|---|
| default for all languages | mechanical_coupling=nodding_donkey |
||
| English | mechanical_coupling=nodding_donkey |
A pump jack coupling intended to transform rotating movement into reciprocating one. |
Statements
mechanical_coupling=nodding_donkey
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Pumpjack 0154.jpg
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