Zeměměřické a astronomické přístroje používané na území ČR od 16. do konce 20. století
Instruments
Manufacturers
About project
instruments
theodolite
manufacturers
Spitra
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theodolite – Spitra
Description
The manufacturer's name on the device
O.Spitra in Prag
Interesting construction features
Information about the use of device
Information about the device condition
Basic data
VÚGTK:
S0133
Owner:
Hornicko-geologická fakulta, VŠB-TUO
Manufacturer:
Spitra
Made:
01.01.1875
Length:
380
mm
Width:
175
mm
Height:
275
mm
Weight:
4840
g
S/N:
Technical parameters
telescope type:
reversible
tripod connection:
tribrach
type of clamp:
peripheral clamp
compensator:
no
unite:
° ' "
view in the telescope:
erected
variable telescope length:
yes
telescope length with retracted eyepiece:
380
mm
telescope length with extended eyepiece:
406
mm
telescope diameter:
25
mm
minimum telescope focusing distance:
2350
mm
telescope magnification:
20
type of optical plummet:
none
compass:
attachable
compass design:
circle
compass diameter:
108
mm
smallest division of the compass scale:
30'
horizontal circle diameter:
175
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:
none
vertical circle:
no
segment of the vertical circle:
yes
segment's range of vertical circle:
90
vertical circle diameter:
160
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:
no
leveling vial:
no
striding level:
no
altitude buble:
no
designed for work:
low precise work