Denture clasp point detector in model casting

摘要

The tip of a first sensor (11) bears on the top of another tooth acting as pivot for the clasp movement. A second sensor (12) contacts the side of this same tooth where the clasp is to be hung parallel to the first sensor (11). A holder (13) affixes either one or other sensor, the other in each case being placed in an accessible and releasable position, keeping the two sensors parallel throughout. An assembly part (14) is fitted to the holder so as to rotate and so position the two sensors over the model (B) which is pointed upwards at its front. The holder consists of a thin straight beam (18) and. The second sensor (12) is installed so as to stand normal to the beam in the end part. The first sensor (11) is mounted on a slide (16) which rides one way along the beam and is fixed so as to stand at right angles to the beam and run onto a back stop (17) fitted to the far end of the beam.