Abstract: A tactile measuring instrument to be used primarily to measure and produce geometric quantities without use of sight, wherein a sliding jaw is configured to move over a guide to adjust the instrument to desired measurement, a mechanically controlled display mechanism is configured to place within tactile perception selected tactile forms or Braille dots, and condensed representation of tactile forms is configured to control display mechanism such that the numerical value of measurement is displayed; and because tactile forms are condensed and more may be packed in the same area, the instrument has high precision. As the display mechanism is small, lightweight and hidden, the instrument is small, portable and simple; and as all information is presented in Braille, it is quick-to-use and convenient. With different configurations of display mechanism and condensed tactile forms, the device may be used for applications other than measurement as well.

Abstract: A tactile measuring instrument to be used primarily to measure and produce geometric quantities without use of sight, wherein a sliding jaw is configured to move over a guide to adjust the instrument to desired measurement, a mechanically controlled display mechanism is configured to place within tactile perception selected tactile forms or Braille dots, and condensed representation of tactile forms is configured to control display mechanism such that the numerical value of measurement is displayed; and because tactile forms are condensed and more may be packed in the same area, the instrument has high precision. As the display mechanism is small, lightweight and hidden, the instrument is small, portable and simple; and as all information is presented in Braille, it is quick-to-use and convenient. With different configurations of display mechanism and condensed tactile forms, the device may be used for applications other than measurement as well.