IBM 80 User Manual

IBM 75 CARD SORTING MACHINE
FUNCTIONAL PRINCIPLES
THE TYPE 75 Card Counting Sorter (Figure 29) is
designed to count and/or sort cards according to the
perforations in a single column.
It is not possible to
count on one column and sort on another column at
the same time.
It is possible, by means of switch con-
trols, to count without sorting, sort without counting,
or count and sort at the same time. Cards that are
multi-punched in a single column will sort on the
figure of the highest order only (all commutator selec-
tion switches out) but all punchings will be counted. If,
however, there should be more than two punched holes
in a single column of a card, possibly only two holes
will
be counted when sorting and counting are taking
place together.
When counting is taking place without
sorting, a maximum of four holes
in a single column
may be counted without the possibility of error.
There are fifteen
Veeder counters of five wheel
capacity. In addition to the twelve counters which
ac-
commodate the pockets, 12 through 9 inclusive, there
is a reject counter and two total counters. The reject
counter counts all cards which are unpunched in
the.-
column being sensed by the card brush. The twO total
counters consist of a subtotal counter and a grand
total counter. These total counters count all cards,
re-
gardless of whether or not they are punched. The sub-
total counter is reset during the operation in which all
Fj~ure 29. Type 75 Card Countjn~ Sorter
39

IBM 80 Specifications

General

Brand	IBM
Model	80
Category	Office Equipment
Language	English