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Патент USA US2120369

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June 14, 1938.
3 Sheets-Sheet l
Filed Nov. 14, 193e
R -
June 14, 1938.
' A. wjMlLLs
Filed Nov. 14, 193e
’ s sheets-sheet 2
Fraz. _
5s 55
June 14, 1938.
~ :2,120,369
3 Sheets-Sheet 3
Filed Nov. 14. 1936
FIG. 4.
Patented June 14, 1938
Albert W Mlllltlllllfcott, N. Y.. aligner to Ina
Machines Corporation.
` New York, N. Y.. a corporation of New York Y
Application November 1,4, 193B,
s calm.
No. 110,810
(c1. isz-m) `
This invention relates to record card feeding
devices such as are used in record card sorting
and tabulating machines.V Such machines each
include a magazine in which a stack of cards is
_ 5 placed and a picker device which feeds the cards
singly from the bottom of the stack. The cards
are thereafter conveyed to pass a sensing station,
shown in the patent to J. R. Peirce No. 2,042,324
to which machine the present invention may be
applied. Before explaining the inventionI a brief
explanation will be given of the operation of .this
card feeding mechanism. In Fig. 1I the shaft I1
runs constantly throughout the operation of the
which. in electric tabulatlng machines. comprises
machine and secured to this shaft is a clutch
driving disk 43 cooperating with a dog 44 mounted
a line of individual brushes, one for each indicia
upon an arm 45 .to which is flxedly connected a
recording column of the’card. At this sensing
station. perforations in the record cards will per
mit the completion of electric circuits there
through. which' are utilized to control various
accumulating. printing, and other related mech
'l'he principal object of the present invention
is to provide means for determining whether the
nated A», through an idler gear 4l. The engage
ment of these clutch elements is controlled by
magnet 48 and armature latch 49. The magnet
4I, upon energization, draws armature latch 49
upwardly. releasing dog 44 so that its spring may
’ record cards pass the line of sensing brushes in
correct relationship with respect thereto. When
such machines are operated at high speed, _it is
important that the leading edge of thek record
card remain parallel to the line of sensing
If for some reason or other the card
becomes slightly askew, the timing of the sensing
devices is affected and the efficiency of the mech
an'ism somewhat impaired. Accordingly; it is
proposed to provide the record cards with a pair
of notches arranged on opposite sides of the
record cards and to provide a pair of separate
30 sensing brushes in line with the normal sensing
brushes and lying in the path of the notches in
the sides of the cards. Circuits are provided
which will control the machine to stop if the
notches are not parallel to the line of brushes as
35 they pass the same.
Various other objects and advantages of the
invention will be obvious from the following par~
ticular description of one form of mechanism
embodying the invention or from an inspection of
.w the accompanying drawings; and the invention
also constitutes certain new and useful features
of construction and combination of parts here
inafter set forth and claimed.
In the drawings:
Fig. 1 ls a view of the card feeding mechanism
of the tabulating machine.
gear 48 to drive the card reading device, desig 10
bring it into engagement with driving disk 43.
The magnet 48 thus causes connection to be made
between constantly running shaft I1 and a ring
gear l0 through piniony 5I and idler gear 41.
record cards are fed singly from the supply mag
azine l2 by the usual card picker mechanism
comprising a slidably'mounted reciprocable plate
Il carrying a picker knife 54 for cooperation with
the record cards.
The plate 53 has pin and slot
connection with an arm 56 secured to a shaft $1
which carries at its end an arm 5B connected by
a link 59 to a stud 60 mounted eccentrically on a
pinion 6| meshing with ring gear 50. Each re
ciprocation of plate 63 and picker knife 54 causes
a card to be fed from the magazine to the analyz
ing mechanism wherein the card is presented to
two sets of analyzing brushes UB and LB which
sense the perforations therein. 'I‘he feeding of
the record cards is eiîected by concentrically ar
ranged pairs of rollers 64 having driving con- ‘
nection to ring gear 50 through the pinion gears
It. The cards pass from the last pair of rollers
64 to any suitable stacker mechanism 66, that
shown being of the rotary type, to the end of
whose shaft is attached a gear 6l meshing with 40
a pinion ll secured to pinion 6i. The cards are'
fed to a discharge stack 68 in the same order
they were in originally. `A shaft l0 is provided
and driven through the gear indicated from ring
gear S0 so as to make one revolution for each ~
card advanced through the machine. On shaft
Fig. 2 is a view showing a card with the alinlng l 1l are mounted various contact controlling cams
which control the operation of the several con
Fig. 3 is a detail showing one of the special tacts which are generally designated with the
sensing brushes.
prefix F in the circuit diagram, Fig. 4.
Fig. 4 is a wiring diagram of the electric cir-`
In Fig. 2 is shown the record card R with the
cuits associated with the device.
usual rows of ñgures representing the various in
Fig. 5 is a diagram showing the timing of the dex point positions. Generally, there are pro
various cam controlled contacts.
vided eighty columns in which separate numbers
ß The card feeding mechanism in> Fig. 1 is that may be represented and for each column there
is a brush UB and a brush LB.
The sides of
It will be apparent that if either of the con
the record card are provided with notches 1| as
indicated which lie beyond the range of the an
tacts RI Ib or Ri2b or both of them fail to close,
there will be no holding circuit traceable for the
alyzing brushes. Separate brushes 12L and 12R
are arranged in the path of the notches 1I and
cooperate therewith as will be explained in con
nection with the circuit diagram. In Fig. 3 is
shown one of the brushes 12 as it makes contact
through a notch with the common conducting
roll 13. Referring now to Fig. 4, when the main
line switch 400 is closed, current is supplied to
the motor I2 of the machine to place the shaft
I1 of Fig. 1 in operation. If the start key ST is
depressed to close contacts ST2 and ST3, a cir
relay RI3 when the contacts F34 open again.
Consequently, the contacts R|3b open and de
cuit will be traced from line 24|, through wire
14, contacts ST3, relay RI3, to line 249. The
relay will close its contacts Rl3a and Rilb and
a holding circuit will thereupon be established
for the relay, which is traceable from line 249,
relay Rl3, contacts Ri3a, cam contacts R31, nor
mally closed relay contacts RI Ic, contacts Ri2c.
original holding circuit for the relay RI3, which
energize the card feed clutch magnet 4I so that
interruption oi' card feeding will follow as a con
sequence. The cam contacts F34 are arranged
to close a second time for a short period and
during this period the contacts F35 open to drop
the holding circuit for the relays RII and R|2
so that their contacts RI Ic and RI2c may again
close. During this period, the cam contacts F31
and F39 also close, thus again setting up the
thereafter maintains the relay energized when
contacts F34 are again opened, and the device is
again in readiness for testing the alinement oi'
the notches on the next following record card.
If for any reason the record card as it advances 20
towards the analyzing brushes becomes retarded,
feed clutch magnet 49, contacts ST2. stop key
the notches 1I will not be in line with the sensing
brushes at the time contacts F39 close and the
machine will stop. Similarly, if for some reason
the card has become accelerated as it advances
contacts 402, to line 249. Upon release of the
start key and opening of the related contacts.
toward the line of sensing brushes, the circuit
through the relays will not be completed. If for'
cam contacts F39, to line 24|.
At the same time,
the card feed clutch magnet 49 is energized
through a circuit traceable from line 24|. card
any reason the card becomes askew more than
the card feed clutch magnet will remain ener
gized through the circuit passing through nor p an allowable degree, only one oi.' the relays RII
mally closed contacts T1, contacts Ri3b and 402 or RI2 may be energized, in which case the
holding circuit will again be broken and the
to line 249. The card feed clutch will thus re
main energized to permit continuous feeding of machine will stop. It is obvious that the notches
1I may be located at other positions along the
cards until contacts T1 open in response to ini
tiation of total taking operations, as more fully sides of the card according to the time at which
described in the patent, or until relay contacts it may be desired to check the alinement. In
such case, it is simply necessary to re-adjust the
Rl3b open as a consequence of an inaccurate
positioning of the card as it passes the analyzing timing of the several cam controlled contacts so
brushes. A pair of cam contacts, designated F36, that the same relative relationship to the new
is timed as indicated in Fig. 5 to close at the testing time is maintained.
While there has been shown and described and 40
in the cycle of the machine when the
notches 1I will be at the line of sensing brushes, pointed out the fundamental novel features of
provided the card is advancing in proper relation the invention as applied to a single modification.
`to the other elements in the machine. If the it will be understood that various omissions and
card arrives properly, a circuit will be completed substitutions and changes in the form and details
of the device illustrated and in its operation may
45 at such time, which is traceable from line 24|,
cam contacts F35, right hand winding of relay be made by those skilled in the art without de
magnet RI2, a wire 16, brush 12R, the right hand parting from the spirit of the invention. It is the
notch 1I of the card R, contact roller 13 and cam intention therefore to be limited only as indicated
contacts FII to line 249. A parallel circuit will by the scope of the following claims.
also branch through the right hand winding of
What is claimed is as follows:
relay magnet RII, wire 11, brush 12L, left hand
1. In a machine of the class described, a line
notch 1I of the card R, contact roll 13, contacts oi sensing elements, means for feeding a record
FI I, to line 249. Energization of these windings card to said sensing elements with the leading
will cause closure of their respective contacts edge thereof parallel to said line, further sensing
means arranged in line with said elements for
Ri2a and Ri la, which, in turn, cause energiza
tion of the left hand windings of the relays which determining whether the leading edge of said
provide a holding circuit through cam contacts record card is parallel to said line of sensing ele
F35. The holding circuits are traceable from ments, means for rendering said further sensing
line 24|,. cam contacts F35 in parallel through means effective for a predetermined interval dur~
Riia and Rl2a, left hand windings of ing the feeding of the card and means controlled
the relays RII and R|2 in parallel, wire 15, to by said further sensing means upon determining
line 249. Slightly before cam contacts F36 close. that said record card edge and said line of ele
contacts F34 will close to maintain the holding ments are not parallel for causing interruption
circuit through relay RI3 and these contacts will of the operation of said feeding means.
2. In a machine of the class described, a line
05 hold the circuit for a short duration` as indi
cated in Fig. 5. At the same time that contacts of sensing elements, means for feeding a record
F36 close, the contacts F31 and F39 open. If card to said sensing elements with the leading
relays RII and RI2 have both been energized, edge thereof parallel to said line, said card hav
their contacts Rilb and RI2b will close, while ing the edges adjacent to its leading edge notched,
separate means for sensing each of said notches
70 contacts F34 maintain the holding circuit for the
relay RI3. Before the contacts F34 again open, at said line of elements and means controlled
the cam contacts F38 and F40 close so that the by said separate sensing means for causing inter
holding circuit for the relay RI 3 is now traceable ruption of the operation of said feeding means
from line 24|, cam contacts F40, contacts Ri2b, when said notches are not presented concurrently
75 RI Ib, contacts F39, Ri3a, relay RI3, to line 249. at said line.
3. In a machine of the class described, means
for feeding a record card through said machine,
a pair of alined electrical sensing elements _dis
posed in the path of said card and arranged to
traverse opposite edges thereof, means for send
ing an impulse to each of said elements concur
rently, a circuit completed by each of said ele
ments and means included in said circuitsl to
cause interruption of the operation of said feed
ing means.
4f In a machine of the class described, a rec
ord card having notches in opposite sides there
of, means for feeding said card through the ma
chine and means cooperating with said notches
for determining whether they are moving paral
lel to one anotherand means controlled by said
determining means for interrupting the opera
tion of the machine if the notches are not par
5. In a machine of the class described, a sens
ing station,'means for feeding a record card hav 5
ing notches in opposite edges thereof through
the machine to cause said notches to arriye at
said sensing station at a predetermined time in
the operation of the machine, testing means to
determine whether the notches have arrived at 1,0
said station at said predetermined time and
means controlled by said testing means for caus
ing interruption of the operation of said feeding
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