Revolution Direction lndicqtor
Tlre nurnber
of turns made is shown in the multiplier register,
"fhis
has a
turn
direction indicator which shows red for negative coupling.
Positive or negative
coupling
is determined as soofi
as
the crank has been
turned
about half
an
inch
in thc
positive
or negative
direction, irrespective of whether the turn is completed
in this initial direction or reversed and completed in
the opposite direction.
A
turn
that has been initiated more than an inch must be completed.
Negative
coupling
is discounted when
the register is cleared with the clearing lever.
Thc multiplier mechaaism counts the [umber
ol
?ositioe
tr.rns-whell. the
first and
following turns are
positive.
It counts the ntrrnber ol negdtfue tans when
rhe
first
and following
turns arc negative.
lJ
positioe
turns are made
raitb
a negative coupled rcgister, it counts backwards,
that is to say, it takes off one for each turn.
If
a start is made with noughts
alone, or the zcro line is
passed
during calculadon, the
complement
of the last
nutrber registered
in the
multiplier register
is
obtained automatically.
(Comple-
ment
of 1
:
999999999,)
The revolution direct;on indicato. on rhe
mtrltiplicr resistcr slovins
thdt
the mrchine
is rcrdy for nesrtive operation-
Position Indicqtor
a
The rcd
position
indicators in the multiplier and
product
registers are controlled
by the red shift and tabulator keys and thus indicate in which column
position
drc machinc
operates at the
moment.
a
Product register
Multiplier rcgister
To Next Page
Loading...