IBM 1402 Instruction & Reference Manual page 36

Card read-punch
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separated into two main assemblies as follows:
1. The drive unit (Figure 4-11).
2. The magnet unit (Figure 4-13).
The drive unit can be further divided into the
following units:
1:
Cam shaft unit.
2. Punch bail and setup bail cam follower
assembly.
3. Die and stripper assembly.
The cam shaft unit consists of a cam shaft and
four sets of complementary cams.
The punch bail and setup bail cam follower
assembly consist of:
1. A punch bail and two sets of cam follower
arms.
2. An interposer setup bail and two sets of cam
follower arms.
The punch magnet unit consists of 80 magnets,
latches, interposer links, and interposers. The mag-
nets are connected through miniature multi-terminal
connectors to the machine circuits.
The camshaft in the punch drive unit operates
continuously when the motor is running. The three-
lobed cams operate the interposer setup bail and
CAM FOLLOWER
PIVOT SHAFT
I NTERPOSER SETUP SAl L
Figure 4-12. Cam Follower Assembly
Figure 4-11. Drive Unit
ECCENTRIC STUD
4-11

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