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
- JOS. & JAN FRIČ PRAHA
- VÚGTK: S0043
- Owner: Národní technické muzeum
- Manufacturer: J. & J. Frič
- Made: 01.01.1910
- Length: 267 mm
- Width: 168 mm
- Height: 273 mm
- Weight: 5160 g
- S/N: 636
- telescope type: flip over
- tripod connection: tribrach
- type of clamp: clamp on the axis
- compensator: no
- unite: ° ' "
- distance meter type: optical
- construction of the distance meter: integrated
- autoreduction of the length: no
- view in the telescope: inverted
- variable telescope length: yes
- telescope length with retracted eyepiece: 255 mm
- telescope length with extended eyepiece: 272 mm
- telescope diameter: 35 mm
- minimum telescope focusing distance: 5400 mm
- telescope magnification: 25
- type of optical plummet: none
- compass: none
- horizontal circle diameter: 152 mm
- main reading scale of the horizontal circle: vernier
- number of reading scales of the horizontal circle: 2
- the smallest segment of the horizontal circle: 30
- setting the horizontal circle to zero: none
- vertical circle: yes
- segment of the vertical circle: yes
- main reading scale of the vertical circle: vernier
- number of reading scales of the vertical circle: 1
- the smallest segment of the vertical circle: 30"
- cross level: yes
- length of the cross level/level parallel with line of collimation: 70 mm
- bubble length of the cross level/level parallel with line of collimation: 15 mm
- length of the cross level/level perpendicular with line of collimation: 70 mm
- bubble length of the cross level/level perpendicular with line of collimation: 15 mm
- altitude buble: no
- leveling vial: yes
- length of leveling vial: 100 mm
- bubble length of the leveling vial: 22 mm
- striding level: no
- sensitivity of the striding level or leveling vial: 18 "
- designed for work: basic work
