Abstract: A linear scale type measuring device wherein an index scale mounted on a slider is opposed to a linear scale, the displacement of a movable member is imparted to said slider through connecting means and the relative displacement between the linear scale and the index scale is read by use of a light source and a receptor element both of which are provided on the slider, characterized in that said connecting means comprises a first engageable member provided at the forward end of a cantilever spring for biasing the slider toward the linear scale and a second engageable member engaging said first engageable member, and one of said first and second engageable members is formed into a projection or a recess provided with a tapered surface and the other is formed into a hole engageable with the tapered surface of said projection or cornered portion engageable with the tapered surface of said recess, said hole or the cornered portion being made of a ring-like portion which the forward portion of said cantilever spri

Abstract: In a dial indicator gauge in which a stopper pin is provided on a spindle having a contact point so as to restrict the displacement range of the spindle by having the stopper pin come into contact with an inner face of an inner frame of the dial indicator gauge, the dial indicator gauge has a buffer member for softening and absorbing impact force as the stopper pin approaches said the inner frame face.