Table 10. An example of the values of the adjustment in an A8 autograph (a = 300 mm) .
GEOGRAPHICAL SURVEY OFFICE OF SWEDEN NO A 34
25
Point or
element
Readings
Corrections
Settings to
the scales
Action
Control-
readings
X 5
y 5
180.100 mm
200.100 "
dt= -20 pm
dl= 50 n
180.080 mm
200.150 «
moving the floating mark
over point 5 with the
adjusting screws of the
objective 0 p . ^
180.080 mm
200.150 "
*5
y 5
180.080 mm
200.150 "
dXp=-100 pri
dy p = -60 ”
179.980 m
200.090 "
moving the picture carrier
support with the adjusting
screws until the
floating mark reaches
point 5»
179.980 mm
200.090 n
c
150.00 mm
dc =50 jum
150.05 mm
loosening the grub screw,
turning the principal
distance drum until 150.00
mm is read(without the
spindle turning) and
tightening the grub screw.
150.00 mm
r
CJ>
0
100 §00
100 §00
100 §00
d <p= -500 cc
dm = 500 cc
Ô0 = 800 CC
ff 2)
99V87 '
100 §05
loofos
loosening the fixing
screws, setting to 100^0
(without the spindle
turning) and tightening
the fixing screws.
100 §00
100§00
100§00
bx
80.00 mm
dbx=—200 pm
79*30 mm
loosening the grub screw,
setting to 80.00 mm(without
the spindle turning) and
tightening the grub screw.
80.00 mm
"^see Instructions for Wild A8 stereo-plotting machine
-P + do? -dGf, if 60 > tolerance limit, else® ... -<p + d <x>
$0 setting value 7 ^ 7 it- setting v. ^
After the mechanical adjustment we must make always new measurements in order to see
if the adjustment lias been performed without complications and if the corrections are
so small that the adjustment can be accepted according to 3«1*