Left blocked differential
Conical means gradually increasing in diameter (as opposed to cylindrical), conical.
For example, in a differential of a car, there are conical gears that make it easy for a car to drive.
There are also conical bearings that can handle lateral pressure.
Pinch couplings, which are used for water pipes and pipelines for central heating, are double-sided conical, allowing them to shut down well when tightening. Conical bunker of the Walderveense mill
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