Zeměměřické a astronomické přístroje používané na území ČR od 16. do konce 20. století
Instruments
Manufacturers
About project
instruments
tachymetre
manufacturers
Breithaupt
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tachymetre – Breithaupt
Description
The manufacturer's name on the device
F. W. Breithaupt & Sohn. Cassel.
Interesting construction features
Information about the use of device
Information about the device condition
Basic data
VÚGTK:
S0148
Owner:
Hornicko-geologická fakulta, VŠB-TUO
Manufacturer:
Breithaupt
Made:
01.01.1910
Length:
440
mm
Width:
165
mm
Height:
335
mm
Weight:
4390
g
S/N:
3511
Technical parameters
cross hairs:
telescope type:
non-removable
tripod connection:
special
type of clamp:
clamp on the axis
compensator:
no
unite:
° ' "
distance meter type:
optical
construction of the distance meter:
integrated
autoreduction of the length:
yes
view in the telescope:
inverted
variable telescope length:
yes
telescope length with retracted eyepiece:
320
mm
telescope length with extended eyepiece:
360
mm
telescope diameter:
33
mm
minimum telescope focusing distance:
3000
mm
telescope magnification:
25
type of optical plummet:
none
compass:
none
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:
repeating
vertical circle:
no
segment of the vertical circle:
yes
segment's range of vertical circle:
60
vertical circle diameter:
380
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
altitude buble:
no
leveling vial:
yes
length of leveling vial:
104
mm
bubble length of the leveling vial:
22
mm
striding level:
no
sensitivity of the striding level or leveling vial:
20
"