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

tachymetre – Haase a Wilhelm

The manufacturer's name on the device
  • Ant Haase v Praze

Interesting construction features

Information about the use of device

Information about the device condition

  • VÚGTK: S0099
  • Owner: Národní technické muzeum
  • Manufacturer: Haase a Wilhelm
  • Made: 01.01.1890
  • Length: 150 mm
  • Width: 123 mm
  • Height: 251 mm
  • Weight: 2170 g
  • S/N: 

  • telescope type: flip over
  • tripod connection: special
  • type of clamp: peripheral clamp
  • compensator: no
  • unite: ° ' "
  • view in the telescope: inverted
  • variable telescope length: yes
  • telescope length with retracted eyepiece: 457 mm
  • telescope length with extended eyepiece: 463 mm
  • telescope diameter: 17 mm
  • minimum telescope focusing distance: 7200 mm
  • telescope magnification: 7
  • type of optical plummet: none
  • compass: attachable
  • compass design: circle
  • compass diameter: 90 mm
  • smallest division of the compass scale: 30'
  • horizontal circle diameter: 115 mm
  • main reading scale of the horizontal circle: vernier
  • number of reading scales of the horizontal circle: 1
  • the smallest segment of the horizontal circle: 1'
  • setting the horizontal circle to zero: none
  • vertical circle: no
  • segment of the vertical circle: yes
  • segment's range of vertical circle: +-50
  • vertical circle diameter: 104 mm
  • main reading scale of the vertical circle: vernier
  • number of reading scales of the vertical circle: 1
  • the smallest segment of the vertical circle: 1'
  • cross level: yes
  • length of the cross level/level parallel with line of collimation: 62 mm
  • bubble length of the cross level/level parallel with line of collimation: 10 mm
  • length of the cross level/level perpendicular with line of collimation: 62 mm
  • bubble length of the cross level/level perpendicular with line of collimation: 12 mm
  • altitude buble: no
  • leveling vial: yes
  • length of leveling vial: 78 mm
  • bubble length of the leveling vial: 15 mm
  • striding level: no
  • sensitivity of the alidade level: 50 "
  • designed for work: basic work