The
information is
held
in
the
B-registers
by
P2,
starwheel 2,
and
the
N/o
5-point of read-out relay
( 326).
The
keyboard
restore magnets
are
energized
at
20°
and
are
held
energized for
the
rest of
the
punch-
out
cycles.
The
interposer
magnet
is energized
at
86°
through
the
N/o
6-point of
the
read-out relay
(326),
and
the
decode
tree
of register
IA
relay points.
The
escape
magnet
is energized
at
180°
by
Pl
and
inter-
poser
bail
contacts.
The
escape-armature contact
makes, energizing
the
escape-interlock relays. This
allows
the
punch
clutch
to
be
energized for
the
next
cycle.
In
our example,
the
interposer 0
magnet
was
energized,
and
an
escapement
to
column 40 of
the
detail
card
occurred.
Read-out, Punch-out Cycle
2:
During
this cycle,
the
digit is
punched
that
was set
up
during
the
last cycle.
At
10°
the
B-registers transfer to
the
next A-registers.
. At 86°
the
A-registers transfer
the
information
to
the
B-registers,
and
the
interposer
magnet
is energized
through
the
decode
tree
of register
IA
relay points.
The
escape
magnet
is energized
at
180°,
the
escape-
armature
contact makes, energizing
the
escape-inter-
lock relays.
The
punch
clutch
is
energized
through
points of
the
escape-interlock relays.
In
our example,
a zero was
punched
in column 40,
and
the
interposer
0
magnet
was energized.
The
digit 5 transferred from
register 3
to
register
2.
An escapement to column 41
of
the
detail
card
occurred.
Read-out, Punch-out Cycle
3:
The
digit is
punched
that
was set
up
in last cycle. At 10°
the
B-registers
transfer
to
the
A-registers.
The
last keyed digit is in
register
IA
now. At 86°
the
interposer
magnet
is ener-
gized. At 180°
the
escape
magnet
is
energized
through
the
interposer
bail
contacts.
The
escape-armature con-
tact
makes, energizing
the
escape-interlock relays, al-
lowing
the
punch
clutch
to
be
energized.
During
this
escapement
the
starwheel 4 opens its circuit.
In
our
example,
the
digit zero was
punched
in column 41,
the
interposer 5
magnet
was energized,
and
an
escapement
to
column 42 occurred.
Read-out, Punch-out Cycle
4:
The
last digit has
been
transferred from storage
and
is
punched
on this cycle.
At 10°,
the
punch-out
relay ( 317) is
dropped).
The
opening of
the
punch-out
relay
N/o
points.
drop
the
read-out 1 relay ( 326).
At
79° (
P2)
credit-field 1 relay
( 336) drops.
The
multi-punch relay ( 113) is energized
through
the
N/o
3-point of
the
credit-field 2 relay
( 327),
and
the
N/C
3-point
of
the
credit field 1 relay
( 326). This prevents a circuit
to
the
escape
magnet
when
the
interposer
11
magnet
is energized
at
86°
(PS)
through
the
N/c
3-point of
the
credit-field 1 relay
( 336)
and
the
N/o
2-point of
the
credit-field 2 relay
1-14
( 327).
The
punch
clutch is energized
through
the
N
/o
6-point of
the
multi-punch relay ( 113)
and
the
inter-
poser
bail
contacts.
In
our example, a 5 was
punched
in
column 42,
and
the
interposer
11
magnet
was ener-
gized.
Read-out, Punch-out Cycle
5:
The
credit
11 is
punched
during
this cycle.
At
10° (
P7),
the
credit-
field 2 relay ( 327) is dropped.
The
N/o
3-point of
the
credit-field 2 relay ( 327) opens
the
circuit
to
the
multi-
punch
relay ( 113).
The
punch
clutch latches
at
345°.
In
our example,
the
11
punch
is
punched
above
the
5
punched
in column 42.
Circuit Objectives
1.
Cycle 1 ( energize interposer 0 for
punching
in
next
cycle):
Close dash-latch contact.
Energize credit-field 1 relay
and
punch
clutch.
Energize credit-field 2 relay, read-out 1
and
2 relays.
Prevent transfer of information in registers.
Provide
hold
on
the
B-registers
and
register IA.
Provide a continuous
hold
on restore magnets.
Energize interposer 0 magnet.
Energize
the
punch-out relay.
Provide
hold
to
the
field 1,
2,
and
3 relays.
Drop
key-entry relay.
Energize escape magnet.
Energize escape-interlock relays.
Energize
punch
clutch.
2.
Cycle 2
(punch
a 0, energize interposer 0
magnet)
:
Transfer B-registers to next A-registers.
Hold
IA
register until 10° of next cycle.
Transfer A-registers to B-registers.
Hold
B-register information until next cycle.
Energize interposer 0 magnet.
Energize escape magnet.
Energize
escape-interlock relays.
Energize
punch
clutch.
3.
Cycle 3
(punch
a 0, energize interposer-5
magnet)
:
Transfer B-registers
to
next A-registers.
Hold
register
IA
information until 10° next cycle.
Transfer A-registers
to
B-registers.
Energize
interposer 5 magnet.
Energize
escape
magnet.
Energize escape-interlock relays.
Energize
punch
clutch.
Break starwheel 4 contact.
4.
Cycle 4
(punch
a 5, energize interposer
11
magnet):
Drop
punch-out
relay.
Drop
read-out relays
and
field
1,
2,
and
3 relays.
Open
circuit
to
keyboard-restore magnets.
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