Zeměměřické a astronomické přístroje používané na území ČR od 16. do konce 20. století
Instruments
Manufacturers
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instruments
tachymetre
manufacturers
K. Grund
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tachymetre – K. Grund
Description
The manufacturer's name on the device
K. Grund Prague
Interesting construction features
Information about the use of device
Information about the device condition
Basic data
VÚGTK:
S0231
Owner:
unpublished
Manufacturer:
K. Grund
Made:
01.01.1900
Length:
265
mm
Width:
144
mm
Height:
262
mm
Weight:
3580
g
S/N:
Technical parameters
telescope type:
reversible
tripod connection:
special
type of clamp:
peripheral clamp
compensator:
no
unite:
° ' "
construction of the distance meter:
N/A
autoreduction of the length:
no
variable telescope length:
yes
telescope length with retracted eyepiece:
310
mm
telescope length with extended eyepiece:
331
mm
telescope diameter:
25
mm
type of optical plummet:
none
compass:
none
horizontal circle diameter:
145
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:
80
vertical circle diameter:
110
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:
64
mm
bubble length of the cross level/level parallel with line of collimation:
8
mm
length of the cross level/level perpendicular with line of collimation:
64
mm
bubble length of the cross level/level perpendicular with line of collimation:
8
mm
altitude buble:
no
leveling vial:
yes
length of leveling vial:
140
mm
bubble length of the leveling vial:
25
mm
striding level:
no
sensitivity of the striding level or leveling vial:
25
"
sensitivity of the alidade level:
200
"
designed for work:
basic work