Zeměměřické a astronomické přístroje používané na území ČR od 16. do konce 20. století
Instruments
Manufacturers
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instruments
levelling instrument
manufacturers
Kern
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levelling instrument – Kern
Description
The manufacturer's name on the device
J. Kern Aarau
Interesting construction features
Information about the use of device
Information about the device condition
Basic data
VÚGTK:
S0017
Owner:
Národní technické muzeum
Manufacturer:
Kern
Made:
01.01.1874
Length:
88
mm
Width:
187
mm
Height:
194
mm
Weight:
2330
g
S/N:
Technical parameters
cross hairs:
telescope type:
reversible
tripod connection:
pin with 4 horizontal screws
type of clamp:
none
compensator:
no
unite:
° ' "
elevation screw:
yes
view in the telescope:
inverted
variable telescope length:
yes
telescope length with retracted eyepiece:
298
mm
telescope length with extended eyepiece:
314
mm
telescope diameter:
31
mm
minimum telescope focusing distance:
9800
mm
telescope magnification:
11.5
horizontal circle:
yes
horizontal circle diameter:
80
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:
3'
segment of the vertical circle:
no
cross level:
no
leveling vial:
no
striding level:
yes
bubble length of the striding level:
158
mm
designed for work:
basic work