Ring, e.g. wedding ring, has inner circular section made up of spring, which is longer section, and smaller section which completes circle, radial screws clamping spring and, when loosened, releasing it, reducing size of inside of ring

摘要

The ring, e.g. a wedding ring, has an inner circular section made up of a spring (4), which is the longer section, and a smaller section (5) which completes the circle. Radial screws (3) clamp the spring and, when loosened, release it, reducing the size of the inside of the ring.