Zeměměřické a astronomické přístroje používané na území ČR od 16. do konce 20. století
Instruments
Manufacturers
About project
instruments
tachymetre
manufacturers
Sprenger
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tachymetre – Sprenger
Description
The manufacturer's name on the device
Ed. Sprenger, Berlin
Interesting construction features
Information about the use of device
Information about the device condition
Basic data
VÚGTK:
S0138
Owner:
Hornicko-geologická fakulta, VŠB-TUO
Manufacturer:
Sprenger
Made:
01.01.1895
Length:
294
mm
Width:
143
mm
Height:
243
mm
Weight:
5391
g
S/N:
2529
Technical parameters
cross hairs:
telescope type:
reversible
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:
294
mm
telescope length with extended eyepiece:
338
mm
telescope diameter:
25
mm
minimum telescope focusing distance:
2600
mm
telescope magnification:
20
type of optical plummet:
none
compass:
integrated
compass design:
circle
compass diameter:
70
mm
smallest division of the compass scale:
1´
horizontal circle diameter:
115
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:
1'
setting the horizontal circle to zero:
repeating
vertical circle:
no
segment of the vertical circle:
yes
segment's range of vertical circle:
100
vertical circle diameter:
110
mm
main reading scale of the vertical circle:
vernier
number of reading scales of the vertical circle:
2
the smallest segment of the vertical circle:
1'
cross level:
no
length of the cross level/level parallel with line of collimation:
97
mm
bubble length of the cross level/level parallel with line of collimation:
20
mm
altitude buble:
no
leveling vial:
yes
length of leveling vial:
143
mm
bubble length of the leveling vial:
30
mm
striding level:
no
sensitivity of the striding level or leveling vial:
12
"
sensitivity of the alidade level:
70
"
designed for work:
basic work