Zeměměřické a astronomické přístroje používané na území ČR od 16. do konce 20. století
tachymetre – J. & J. Frič
The manufacturer's name on the device
- PRAGUE JOS. & JAN FRIČ
- VÚGTK: S0104
- Owner: Národní technické muzeum
- Manufacturer: J. & J. Frič
- Made: 01.01.1895
- Length: 225 mm
- Width: 125 mm
- Height: 175 mm
- Weight: 1410 g
- S/N: 417
- telescope type: non-removable
- tripod connection: special
- type of clamp: peripheral clamp
- compensator: no
- unite: ° ' "
- distance meter type: optical
- construction of the distance meter: integrated
- view in the telescope: inverted
- variable telescope length: yes
- telescope length with retracted eyepiece: 223 mm
- telescope length with extended eyepiece: 260 mm
- telescope diameter: 17 mm
- minimum telescope focusing distance: 1430 mm
- telescope magnification: 22
- type of optical plummet: none
- compass: none
- horizontal circle diameter: 110 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: 100
- vertical circle diameter: 100 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: no
- altitude buble: no
- leveling vial: yes
- length of leveling vial: 87 mm
- bubble length of the leveling vial: 22 mm
- striding level: no
- sensitivity of the striding level or leveling vial: 25 "
- designed for work: low precise work
