Zeměměřické a astronomické přístroje používané na území ČR od 16. do konce 20. století

Duplex

The manufacturer's name on the device

Interesting construction features

Information about the use of device

Information about the device condition

  • VÚGTK: S0131
  • Owner: Hornicko-geologická fakulta, VŠB-TUO
  • Manufacturer: J. & J. Frič
  • Made: 01.01.1886
  • Length: 200 mm
  • Width: 200 mm
  • Height: 277 mm
  • Weight: 4650 g
  • S/N: 119

  • cross hairs:
  • NK_004
  • telescope type: revolved
  • tripod connection: tribrach
  • type of clamp: clamp on the axis
  • compensator: no
  • unite: ° ' "
  • the possibility of determining the elevation: yes
  • distance meter type: optical
  • construction of the distance meter: integrated
  • view in the telescope: inverted
  • variable telescope length: yes
  • telescope length with retracted eyepiece: 190 mm
  • telescope length with extended eyepiece: 205 mm
  • telescope diameter: 25 mm
  • minimum telescope focusing distance: 3000 mm
  • telescope magnification: 25
  • type of optical plummet: none
  • compass: integrated
  • compass design: tubular compass
  • smallest division of the compass scale: 30'
  • horizontal circle diameter: 130 mm
  • main reading scale of the horizontal circle: microscope scale
  • number of reading scales of the horizontal circle: 2
  • the smallest segment of the horizontal circle: 1'
  • setting the horizontal circle to zero: repeating
  • vertical circle: yes
  • segment of the vertical circle: no
  • vertical circle diameter: 95 mm
  • main reading scale of the vertical circle: vernier
  • number of reading scales of the vertical circle: 2
  • the smallest segment of the vertical circle: 1'
  • cross level: yes
  • length of the cross level/level parallel with line of collimation: 65 mm
  • bubble length of the cross level/level parallel with line of collimation: 13 mm
  • length of the cross level/level perpendicular with line of collimation: 65 mm
  • bubble length of the cross level/level perpendicular with line of collimation: 12 mm
  • leveling vial: no
  • striding level: no
  • altitude buble: yes
  • lenght of the altitude level: 55 mm
  • bubble length of the altitude level: 15 mm
  • designed for work: special work