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6
CARD
SORTING
MACHINE,
TYPE
82
entirely automatic, except for the removal and replen-
ishing of cards in the machine.
Sorting cards on the Type 82 machine consists of
running the cards through the machine once for each
column in the field being classified. This is comparable
to scanning a series of printed figures with the human
eye, except here an electric sensing brush becomes the
eye. This brush can sort on only one column at a time.
However, it is movable, so that the operator may posi-
tion the brush to sort on anyone of the 80 column
positions on the IBM card. The machine is equipped
with 13 pockets for dispersal of cards; one pocket for
each digit value 0 through 12 and one reject pocket
for cards unpunched in the column being sorted.
By means of feed knives, cards are fed one at a time
from the bottom of the pack in the card magazine on
the right end of the machine (Figure 1). After leaving
the card magazine, they are gripped between sets of
constantly revolving feed rolls and are fed from the
right to the left of the machine. As the cards travel
from right to left, they first pass the card brush station,
2
~
112
2 2
1 3
1 2
2 1)
1 3
2 2)
2 1
1 1
1 2
2,2
2 3
2 1
2 2
Cards in Magazin
(in miscellaneous
order)
12
22
12
23
22
21
13
12
21
13
22
11
--~
22
21
"3" Pocket
"2" Pocket
"1" Pocket
Cards now in order in units position
FIRST SORT
e
located between the first and second sets of feed rolls.
Here the punching in the card column being sorted is
sensed by means of a brush projecting through the holes
in the card and making contact on a common roll.
Sensing of card punching at the card brush station sets
up the proper combination of raised or lowered chute
blades at the sort magnet station, located between the
second and third sets of feed rolls. This setup is accom-
plished as the leading edge of the card is traveling
under the chute blades. The chute blades, according
to
their setup, then direct the' card to its proper pocket
(the card is still being carried by the feed rolls).
If a 1 punch is sensed at the card brush station, the
chute blade combination setup will be such that the
card will be directed to the 1 pocket. If an 8 punch
is sensed at the card brush station, the chute blade
combination setup will be such that the card will be
directed to the 8 pocket. If no punching is sensed at
the card brush station, all chute blades will remain in
a raised position, and the card will be directed
to
the
reject pocket.
g)3
1 3
1 3
2 3
1 2
2 2
1 2
2 2
1 2
2 2
2 2
2 1
2 1
1 1
2 1
Cards in order in u
nits
position
(in miscellaneous
0
rder
in tens position)
23
23
22
22
13
22
13
22
12
21
12
21
12
21
11
"2" Pocket
"I" Pocket
Cards in order in units and tens position (sub classification)
SECOND SORT
Figure
2.
Principle of Sorting
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