urni mehanizem
1. urni mehanizem, mehanizem za navijanje
any mechanism of geared wheels that is driven by a coiled spring; resembles the works of a mechanical clock [mehanizem zobatih koles, ki ga poganja navita vzmet; spominja na mehanizem mehanske ure.]
2. urni mehanizem
the driving and regulating parts of a mechanism (as of a watch or clock) [pogonski in regulacijski deli mehanizma (kot pri uri ali zvoncu)]