Zeměměřické a astronomické přístroje používané na území ČR od 16. do konce 20. století
Instruments
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instruments
theodolite
manufacturers
Fromme
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theodolite – Fromme
Description
The manufacturer's name on the device
GEBR. FROMME WIEN
Interesting construction features
Information about the use of device
Information about the device condition
Basic data
VÚGTK:
S0135
Owner:
Hornicko-geologická fakulta, VŠB-TUO
Manufacturer:
Fromme
Made:
01.01.1890
Length:
160
mm
Width:
154
mm
Height:
205
mm
Weight:
1990
g
S/N:
376
Technical parameters
cross hairs:
telescope type:
flip over
tripod connection:
special
type of clamp:
clamp on the axis
compensator:
no
unite:
° ' "
the possibility of determining the elevation:
yes
distance meter type:
optical
construction of the distance meter:
integrated
view in the telescope:
inverted
variable telescope length:
yes
telescope length with retracted eyepiece:
136
mm
telescope length with extended eyepiece:
155
mm
telescope diameter:
15
mm
minimum telescope focusing distance:
1300
mm
telescope magnification:
14
type of optical plummet:
none
compass:
attachable
compass design:
exccentric
compass diameter:
90
mm
smallest division of the compass scale:
30'
horizontal circle diameter:
90
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:
2'
setting the horizontal circle to zero:
none
vertical circle:
yes
segment of the vertical circle:
no
vertical circle diameter:
75
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:
2'
cross level:
yes
length of the cross level/level parallel with line of collimation:
40
mm
bubble length of the cross level/level parallel with line of collimation:
5
mm
length of the cross level/level perpendicular with line of collimation:
40
mm
bubble length of the cross level/level perpendicular with line of collimation:
5
mm
leveling vial:
yes
length of leveling vial:
75
mm
bubble length of the leveling vial:
13
mm
striding level:
no
altitude buble:
no
designed for work:
basic work