Zeměměřické a astronomické přístroje používané na území ČR od 16. do konce 20. století
levelling instrument – J. & J. Frič
The manufacturer's name on the device
- JOS. & JAN FRIČ
- VÚGTK: S0070
- Owner: unpublished
- Manufacturer: J. & J. Frič
- Made: 01.01.1890
- Length: 187 mm
- Width: 42 mm
- Height: 101 mm
- Weight: 460 g
- S/N: 908
- cross hairs:
-
- telescope type: non-removable
- tripod connection: special
- type of clamp: endless
- compensator: no
- unite: ° ' "
- elevation screw: yes
- construction of the distance meter: N/A
- view in the telescope: inverted
- variable telescope length: yes
- telescope length with retracted eyepiece: 186 mm
- telescope length with extended eyepiece: 202 mm
- telescope diameter: 30 mm
- minimum telescope focusing distance: 3400 mm
- telescope magnification: 11
- horizontal circle: yes
- horizontal circle diameter: 31 mm
- main reading scale of the horizontal circle: index
- number of reading scales of the horizontal circle: 1
- the smallest segment of the horizontal circle: 45°
- segment of the vertical circle: no
- cross level: no
- leveling vial: yes
- length of leveling vial: 85 mm
- bubble length of the leveling vial: 20 mm
- striding level: no
- sensitivity of the striding level or leveling vial: 40 "
- designed for work: basic work
