käsikurviga
Käsikurviga is an Estonian term that translates to "with a hand-wheel" or "hand-cranked" in English. It refers to a mechanism or device that is operated manually using a wheel or handle that is turned by hand. This type of operation is common in a variety of applications where precise control or a slower, more deliberate adjustment is required, or where electric or automated power is not available or practical.
Historically, many machines and tools were hand-cranked. Examples include early types of winches, drills, coffee grinders,