Devices for measurement of linear internal cavity size

摘要

Device for measuring the internal linear dimensions of the cavities, comprising a traverse with fixed thereon two measurement elements, each of which is in the form of two pivotally connected at one end between a splines, the opposite end of one of which is pivotally mounted on the crosspiece on one of the splines other measuring element, characterized in that the other ends of the strips of each measuring element are fixed on the tube located inside cross member pivotally connected to the measuring unit md ometra furthermore fastened on the tube to be movable therealong limiter is rigidly connected with sterzhnem- depth gauge, a micrometer is provided with a measuring ruler, situated at the bottom, the depth parallel rods.