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16
T Y P E
6 0 3
E L E C T R O N I C M U L T I P L I E R
Figure 1 4 . Electronic Computing Unit-Rear
View
Drive Mechanism
Power to drive the read and punch unit is fur-
nished by the drive motor which can be seen in
Figure 8. The drive motor transmits power to the
gear housing through a
V
belt and pulley.
Prac-
tically all mechanisms are under control of the
punch clutch.
All feeding operations are under
further control of the intermittent feed clutch
(geneva clutch).
Figure 16 shows schmatically
the various units under the control of the two
clutches.
When only the motor operates (with
neither clutch engaged), the drive pulley rotates
and drives the drive pulley shaft to which the pul-
power with this cover off because oil will be
thrown out of the housing.)
The eccentric shaft
drive gear operates the eccentric shaft which in
turn transmits motion to the punch bail.
(The
operation of this bail is discussed in connection
with the principle of punching.) The geneva drive
gear operates the geneva and geneva pawl and also
the punch clutch idler gear and shaft. O n the out-
side of the idler gear shaft is pinned a small gear
which drives the index gear (Figure 1 0 ) .
The
punch clutch one-tooth ratchet is a part of the in-
dex gear assembly and rotates continuously as long
as the motor is in operation. The index gear and
ratchet rotate on the ~ u n c h clutch shaft but are
ley is keyed.
Attached to this shaft inside the
not pinned t o it.
gear housing are two gears, the geneva drive gear
In order to place the rest of -the machine units
and the eccentric shaft drive gear. The mechan-
in operation it is necessary to unlatch the punch
isms and gear trains inside the gear housing may
clutch pawl from its armature and allow i t t o en-
be
seen by removing the top cover from the hous-
gage in the continuously running one-~00th ratch-
ing. (Caution: D o not operate the machine under
et, which is a part of the index gear assembly.
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