DE2130535A1 - Feed and alignment device for punch card devices - Google Patents

Description

Feed and alignment device for punch card devices

The invention relates to a device for feeding and aligning punch cards in a reading, punching or selection device, as used in data processing systems.

The cards that have already been punched or that have yet to be punched are usually stacked on an inclined plane and through one Sohub plate acted upon by a spring against the feed device pushed.

The task of the feeding device is to take out one card at a time to remove from the stack and to convey them along a predetermined path to a work station, the one May be a punch, a reading or a selection device or a combination of these devices.

Usually the card is removed from the stack by riveting one that is perpendicular to the long side of the card, almost conveyed vertical movement. The removed card nut

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then along the following trajectory in a to The first trajectory is initially conveyed in the perpendicular direction. Therefore it must be along before initiating the movement the card can be aligned with this movement path, i.e. brought into such a position that its long sides face the initial Direction of transport parallel along the path of movement get lost. This is achieved in the prior art by using a set of pairs of rollers that form the Card against a fixed one arranged in a suitable position Press the stop part, the pairs of rollers continuing their action until the card is moved in the direction of the path of movement with the aid of a suitable conveying device.

The constant friction of the rollers can cause considerable wear and tear on the cards, although this is not a positive one There is a guarantee that the correct alignment will be achieved because the card is only at its lower edge against the stationary one Stop part is pressed and its upper edge is free.

In most of the known devices, the cards are removed in a constant sequence by the action of periodic, Movements controlled by rotating mechanical parts. This is known as synchronous feeding. Against it it is for reasons of operational reliability and adaptability to use expedient to remove the cards according to an asynchronous mode of operation, so that the time span between the withdrawal of a card and the following, as long as it is greater than a required minimum value, arbitrary can be selected and does not depend on any working period of the mechanical parts.

In this way it is possible to change or change the working or operating speed of the device by

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you simply change or change the duration of this period of time, without affecting the exact working hours and without being forced to adjust the exact working speed of the device to the Set the speed at which the cards are removed from the stack.

The asynchronous operation of such devices has been carried out until now Use of mechanical couplings achieved that the movement of the feeding device under control by electrical signals start and stop. However, the use of mechanical switches is often the cause of disadvantages such as defective Working, wear and tear, misadjustment and reduced reliability of the machine.

These disadvantages are eliminated by the device according to the invention, which is particularly simple and effective, and has a cover plate contains, against which the stack of cards leans in the rest position and which are controlled by an electromagnet Can be adjusted backwards by a distance that is needed to impact the first card of the pile to suspend removal agents that are in constant motion, and by aligning the card using the frictional action of a set of rollers that cooperate with guide members, which subject the resiliently curved card to the action of these roles only for the length of time necessary to to generate the alignment with the aid of an upper delimitation part cooperating with a lower alignment bar is guaranteed. The aligned card is then controlled with the help of a suitable electromagnet itollen is transported along the following trajectory.

In particular, an index formed according to the invention is distinguished feeding device for conveying the cards along a a predetermined path of movement from an exit point an alignment point and to a reading “la I ion, through a

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Large number of elements removing the cards with constant and uniform movement, through a cover plate with a A plurality of mating portions of the slots surrounding the card-removing elements, by means of a device, around a deck of cards to push against the cover plate, by a control device, to the cover plate successively a first Shift in order to subject the foremost card of the stack to the action of the card extraction elements, and a second one Displacement in the opposite direction to convey. to withdraw the card stack from the removal effect, whereby the Operation of the control device is not correlated with the movement of the card extraction elements.

Further advantages and details of the invention are given below with reference to a preferred one shown in the drawing Embodiment described in more detail. Show it:

Fig. 1 is a schematic perspective view of the device according to the invention in section along its median plane,

Fig. 2 is a sectional schematic view of a

Part of the device, the successive) positions of a card in the course of the alignment

illustrates

3 is a logic block diagram of the electronic control circuit;

Figure k is a set of timing diagrams illustrating the various binary values for the signals at various locations on the electronic Seim 1 Lung.

The depicted approach is to the largest lell to the vertical Median plane symmetrical aui; eonhie t, and i'iji .. 1 shows a .-, chili ti- along this Hi tle I level through now naupUeil the Vorri oh (.mm as well as the persjmk (i \ i.iche:> ii:> ieht inrcr linlo'n ü'ilj'to.

BATH ORIGINAL

In the following description, the terms relate left or right, front or back on one in the forward direction of the deck of cards on the feeder observer flashing.

In the lower part of the drawing is the device, as the various Parts are not arranged symmetrically, shown in perspective without sectional views.

The reference numeral 1 denotes an inclined plate carrying the stack of cards. In the drawing is a Part of this plate has been removed to reveal the mechanism below. The stacked cards rest with hers lower longitudinal edge on the plate 1 and are counteracted by a spring-loaded plate, not shown in the drawing pushed the feeder.

The feed device has two belts (of which only belt 2 is shown) which are arranged symmetrically to the cutting plane. The belt 2 is partially wrapped around three rollers 3> 4 and 5. The roller 3 is rotatably mounted on the shaft 6, which is kept in rotation by drive means (not shown) at a constant speed in the counterclockwise direction. The sweeping roller 5 is freely rotatable on the stationary shaft 7. The tensioning roller k is mounted on the shaft 8, which is carried by a tensioning arm 9, which is articulated at 10 and is urged by the spring 11 to tighten the belt appropriately.

Further auxiliary roles can be provided in particular between the rollers 3 and 5 in order to ensure that the belt follows the eft orderliohen movement path exactly. In this way, in a suitable part of the movement path between the sweeping roller 5 and the drive roller 3, the belt is guided in a substantially vertical direction, running in a slot cut out in the cover plate 13 and open at the bottom.

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In the rest position, the stack of cards leans against this cover plate 13 »whereby the belt 2 is prevented from coming into contact with the foremost card of the stack, since it is opposite one another the plate 13 is in a somewhat recessed position.

The cover plate 13 is attached to the yoke Ik _1, which can be part of the main frame of the machine, with the aid of two symmetrically arranged flexible horizontal leaf springs, of which only the leaf spring 15 is shown, and with the aid of a flexible vertical leaf spring 16. The horizontal leaf springs 15 are attached to the cover plate 13 and to the yoke Ik with the help of screws 17 and 17 ', while the vertical leaf spring l6 with the help of a screw (not shown) on the cover plate 13 and with the help of a screw 20 on the block

18 is attached. The block 18 is with the help of a screw

19 attached to the yoke Ik .

The two horizontal leaf springs 15 and the vertical leaf spring 16 hold the cover plate and allow it to perform a slight backward swinging movement.

On both sides of the cover plate there is a rib to which a short link 22 is articulated by means of a pin 21. At its opposite end, the link 22 is articulated at 2k to an arm 23 which is a continuation of the oscillating link 25.

This swinging member is attached to the shaft 26, which is rotatably held by the yoke Ik in a manner not shown, and can, together with it, perform a slight pivoting movement in the counterclockwise direction. 1 / he armature 28, consisting of sheet metal made of a suitable ferromagnetic material, is fastened on the shoulder 27 formed on the swing base member 25 and is subject to the attraction of the electromagnet 30 fastened to the yoke 14 and provided with excitation coils 29.

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In the rest position, the axis of the pin 21 of the link 22, the articulation 24 and the shaft 26 are essentially in the same plane. Thus, the force exerted by the stack of cards resting against the cover plate 13 does not cause the oscillating member 25 to pivot aspired moment. When the electromagnet 30 is energized, the armature 28 is attracted forward, whereby the Oscillating member 25 counterclockwise over a small angle pivoted and thereby the action of the springs 32 overcomes. This pivoting movement is limited by the adjustable stop screw 33. As a result of this pivoting movement, the Linkage 24 moves downwards, the cover plate being moved as a result of the associated movement of the link 22 and the linkage 2Γ pivoted counterclockwise so that its lower part is moved backwards, thereby allowing the belt 2 to emerge from the slot in which it was previously hidden.

The front card of the deck becomes the effect this way of the part of the belt protruding from the slot and moved downwards. During this movement the Card according to a known arrangement forced to pass through a calibrated slot not shown in the drawing to move through, which only lets through one card at a time, since the gap in the calibrated slot is hardly wider than the thickness a single card.

As soon as the lower edge of the card has moved through this slot and is below the plane of the plate 1, the card is gripped by two pairs of drive rollers mounted on the rotating shaft 6, of which only the pair designated 35 is shown. Against these rollers there is a corresponding pair of pressure rollers J6 , which are held by a swing arm 37 which is articulated to a spring, not shown. Due to the action of the drive rollers 35 and the pressure roller !! IU as well as their symmetrical to them

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arranged counterparts on the right side of the device, the card is requested downwards.

The position of the card at this point in time is indicated by the letter S. dash-dotted line (Fig. L) shown.

All of the above-described, the cover plate 13, the The device comprising both belts 2 and their associated rollers 3, 4, 5 and the two pairs of rollers 35 protrudes a substantially rectangular window out that is in a fixed Plate 12 is cut out attached to the main frame with the help of designated 38 and others not Screws shown is attached, which make it possible to adjust the vertical position of the plate 12. The horizontal The width of the plate 12 is at least equal to the length of the card. At its bottom, the plate 12 is bent so that it has a forms upper delimitation strip 40, the purpose of which will be explained in more detail below.

Under the plate i carries a rotatably held by the main frame and by drive means driven clockwise shaft 41 two pairs of rollers rotatably mounted on it, of which only that is indicated by 42 is shown. A guide plate 43 and a counter plate 44, which rest on an alignment bar 45, delimit an alignment channel into which the card falls as a result of the action of the drive rollers 35 and the pressure rollers 36, as shown in Fig. 2, a schematic section through the lower part of the feed device along the central plane, can be seen. The dash-dotted thick line S shows the position of the card, as soon as its lower edge, facilitated by the inviting upper turns of the guide plate 43 and the counter-plate 44, has entered the channel.

By the action of the caves 3! 5 and 3t> after

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is pushed into the channel below, it is forced to bend in the longitudinal direction and rests when its upper edge is free of the rollers, against the fixed plate 12. As a result of longitudinal bending and the resilience of the card is its longitudinal center portion as indicated by S ¹ illustrated, moved in the direction of the guide plate 43.

The plate 43 has two openings arranged symmetrically to the plane of the son, of which only one is shown in the drawing is. The pair of rollers 42 protrudes through this opening and with a part of the roller circumference into the channel. the Outer peripheral surface of the rollers 42 is with a matching high-friction Material covered like rubber and acts on the central part of the card, which as a result of its longitudinal bending against the Rolls is pressed and moves them downward until their lower edge rests on the alignment bar 45. The distance between the top this Ausriohtträger and the underside of the delimitation strip 40 is hardly greater than the height of the card. Therefore judges the card as soon as its upper edge has moved past the lower edge of the boundary strip 40, i.e. as soon as the Lower edge of the card on the Ausriohtträger 45 rests, on and leans against the counter plate 44, so they the The drive effect of the rollers 42 escapes and assumes the position S ″ shown in dashed lines in FIG. It shows that it turns green the symmetrical arrangement of the two pairs of rollers and the device described one sioh to the horizontal in an inclined position card only on its higher side, i.e. on the side that is the last to sink below the edge of the delimitation bar, a prolonged effect of the downwards is exposed to promotional roles. In this way, an effect that cancels the inclined position takes place. The printing of the card against the rollers is only given by the bending of the card and its elasticity and stops as soon as the card is back on

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can assume a straight stretched shape while doing so with its upper edge enters under the delimitation bar 40. The rubbing action of the rollers on the card is thus very gentle and gradual and stops immediately as soon as it is no longer needed.

If the card is in the between the alignment bar 45 below and the delimitation bar 40 rests vertically delimited channel at the top and leans against the counter plate 44, it is inevitable properly aligned in the required direction and is no longer subject to any wear or other force.

The first photoelectric is located on the center plane of the machine Light barrier device, which consists of a light source 48, preferably a solid photo emitter, on the one Side of the alignment channel and a .Photodiode 50 on the opposite of the channel. This photoelectric light barrier device is arranged at a suitable height so that, if the bottom edge of the card, as it moves downward, interrupts the light emanating from photoemitter 48, its top edge just the lower edge of the cover plate 13 leaves. The interruption of the light caused one by the photodiode too emitting electrical signal. As explained in more detail below, this signal interrupts the excitation current for the Electromagnet 30, which thus releases the armature 28 so that the Oscillating plate 25 under the action of springs 32 can return to its rest position shown in FIG.

As a result, the cover plate 13 returns to its front Position back, pushing back the stack of cards and the frontmost card of the stack being affected by the belt 2 withdraws.

As a result, no more than one card can be withdrawn at a time, this being done in a completely asynchronous manner, i.e. the withdrawal process is on no phase of an operating period either

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of the constantly vibrating or rotating machine parts.

When the card is aligned on the ledge 45, the device can be activated to further advance the card along the next movement tap. This device contains the roller 51 »which is mounted on the shaft h6 in a rotationally fixed manner, which rotates continuously in the direction indicated by the arrow and receives its rotary motion from the shaft ki with the aid of the worm gear 53.

A portion of the outer periphery of the roller 51 protrudes through a kj in the plate> window formed therethrough into the alignment passageway. A corresponding pressure roller 5k protrudes from a corresponding window formed in the counter plate kk into the same channel and is held by an arm 55 which is subject to the action of the electromagnet 57, which is opposed to the action of the spring 56.

When the electromagnet 57 is de-energized, the spring 56 holds the pressure roller 54 at a suitable distance from roller 51 »so that they are neither a card entering the channel can still interfere with the card that could be contained in the channel.

When the magnet 57 is excited, however, its armature overcomes the effect the spring 56 and so pushes the pressure roller 5 ^ in the direction on the rotating roller 51ι so that one in the alignment channel stationary card is conveyed along the next trajectory.

A second consisting of photo emitter 6O and a photodiode 6l photoelectric light barrier device is arranged near the bottom of the alignment channel and near its right end.

Fig. 3 shows the logic block diagram of the electrical circuit to control the various processes, in particular to control

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of energizing or de-energizing the electromagnets 30 and 57 »the actuate the cover plate 13 or the pressure roller 54.

Fig. 4 shows the timing diagrams relating to the binary values at the various places on the logic diagram indicated by the large letters surrounded by a circle relate.

The device according to the invention is preferably for one Card reader used, which forms part of a data processing system, welohes, for example, a central data processing system which can send out command pulses, each of which means removing a card from the stack causes.

These command pulses must be separated by time intervals be separated that are not shorter than a minimum value corresponding to the maximum working speed. If the workbook If the speed is 600 cards per minute, the time interval between the pulses must be at least 100 milliseconds be. However, these time intervals can be longer if the transmission of each command pulse by the central data processing system is dependent on the receipt of a release signal supplied by the card reader, which is delayed if for any reason the removal and alignment of the card is delayed. The card reader includes on the movement path traversing the card after it has been aligned a reading point, not shown, for which it is sufficient for the purposes of this description to know that they are a signal can send out to indicate the start and end of the reading process. It is assumed that the "start of reading" signal is a Transition from a binary value ZERO to a binary value ONE and that the "read end" signal is the opposite transition.

The circuit of Fig. 3 has four input terminals and a "

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Output port. The input connection 70 is connected to the output of the device generating the command pulses, for example the central data processing system UC of a data processing system connected. The input terminal 72 is to the The output of the photodiode 50 which forms part of the aforementioned first photoelectric light barrier device is connected. The input connection 73 is connected to the output of one part of the aforementioned second photoelectric light barrier device forming photodiode 6l connected »

The input terminal 74 is at the output of the device SL connected, which forms part of the reading point and which the Sends "start of reading" and "end of reading" signals «

The output connection 71 is to the central data processing system connected to feed her a release signal.

The circuit essentially contains the following circuit elements »

a) NOR gate postures like the one labeled 78, the two Has input lines and one output line. The output line has a binary value of ONE if and only if both Input lines have a binary value of ZERO; if one or both input lines have a binary value ONE, the output line has a binary value ZERO. When both input lines to form a single input with each other connected, the NOH torso posture works simply as an inverting member like that labeled 77.

b) Flip-flop so-called bistable circuits such as the labeled 76. These circuits can be one of two different states, and a working state and assume an idle state and have a direct output line D.

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In the working state, the direct output line D has a binary value ONE, while in the idle state it has a binary value ZERO. There are two static input lines labeled S and R and two dynamic input lines labeled ^{S 'and R 1.} The flip-flop circuit changes to its working state (and thus D has the binary value ONE) when a binary ONE level is applied to the static input S (Set) or when a transition from binary to the dynamic input line S * Value ONE is applied to the binary value ZERO; it reverts to its idle state (and therefore the output D has a binary value ZERO) when a binary value ONE is applied to the static input line R (Reset) or when a transition from the binary value ONE to the binary value is ^{applied to the dynamic input line R 1} NULL is created.

c) Monostable circuits like the one designated 84, the one Input line I and an exhaust line U have. If the Input line I goes from a binary value ZERO to a binary value ONE, the output line U goes to a binary value NULL over; when the input line I reverts to a binary value ONE, the output U does not reverse immediately, but according to one of the characteristics of the monostable Switching dependent on a certain period of time to ONE.

d) In addition, amplifiers of a known type are used with an input line and an output line, which is either ensure that the external signals are those prescribed for the signals circulating in the circuit described Normal characteristics are adapted, such as those labeled 81 and 83, or for the energy required for the drive external devices to the effect of signals coming out of the hold, such as the one designated with 79.

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The connection 70 is connected to the input S of the flip-flop circuit 76 connected, the output D of which is connected to an inverting element 77, the output of which is connected to the first input line of the NOR gate 78 is connected with two inputs. The output line of the NOR gate circuit 78 is connected to the input line of the amplifier 79, the excitation of the parallelgesohalfeten electromagnets 30 and 57 controls.

The connection 72 at the output of the photodiode 50 is connected to the input of an amplifier 81, the output of which is connected to the dynamic input S ^{1 of} a flip-flop circuit 82.

When the diode is illuminated, the output of the amplifier has 8i a binary value ONE, while when the diode is not illuminated the output has a binary value "ZERO".

The output D of the flip-flop Sehaltung 82 is to the second Input line of the NOR gate circuit 78 connected.

The connection 73 at the output of the photodiode 61 is connected to the input line of the amplifier 83, the output of which controls the input I of the univibrator 8k P. The output U of the univibrator is connected to the input of the inverting element 85, the output of which is connected to the input R ^{1 of} the flip-flop circuit 82.

The terminal 7k , which receives the "start of reading" and "end of reading" signals coming from the reading point SL, is connected to the input line of the monostable circuit 70.

Its binary output signal is inverted by the inverting element and ^{fed to the input R 1 of} the flip-flop circuit 76 and to the output terminal 71.

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The operation of the circuit is described below with reference to the diagrams of FIG. K , which show the binary values at the various points in the circuit denoted by the same letters. Diagram E shows the energized or de-energized states of the electromagnets 30 and 57.

The flip-flop circuits 76 are in idle states and 82 at rest, and their outputs D have a binary value ZERO.

The first input line B of the NOR gate circuit 78 has the binary value ONE, while its output line C has the binary value ZERO ^- and the amplifier 79 does not energize the electromagnets 30 and 57.

At the start of operations, the central data processing system is responsible UC the input S of the flip-flop circuit 76 a pulse P to, so that its output D changes to the binary value ONE. Line B goes to ZERO, with the second input line (G) of NOR gate circuit 78 going to ZERO and the flip-flop circuit 82 are idle, the output of NOR gate 78 (line C) becomes ONE so that amplifier 79 drives the electromagnets 30 and 57 excited.

After a short period of time corresponding to the excitation time, the two electromagnets pull at time t. (see diagrams E in Fig. 4t).

The electromagnet 30 moves the cover plate 13 backwards so that the first card is removed from the stack. The electromagnet 57 pushes the pressure roller 5 ^ against the transport roller 5i> however, this process has no effect because the alignment channel is empty.

The first card moves under the action of the rollers 35 below, with their sub-accounts at the time t “illuminating the Photodiode 50 prevents.

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As a result, the dynamic input S ^{1 of} the flip-flop circuit 82 changes from the binary value ONE to the binary value ZERO (diagram F), while its output D changes from the binary value ZERO to the binary value ONE (diagram G). This has the effect that the output of the NOR gate circuit 7b (line C) changes to the binary value ZERO and the excitation of the electromagnets 30 and 37 is interrupted, which return to their idle state after a short fall time at time t ". The cover plate 13 returns to its front position, pushing back the stack of cards and preventing the removal of the closest card.

The pressure roller 5 ^ is removed from the roller 51 so that they the Alignment channel for receiving the card leaves free.

When the card with its downward movement illuminates the photodiode 6l at the time t. prevented, the input of the monostable circuit 84 goes from the binary value ONE to the binary value ZERO (diagram H). The output, which has a binary value ZERO, remains at the same level for a predetermined period of time t ⁰ up to time t-. The period of time t "- t_ is essentially equal to the minimum period of time between the removal of two consecutive cards, which is 100 ms, for example in the case of an operating speed of 600 cards per minute.

At the instant t- the output of the flip-flop latch 84 goes to the binary value ONE, so that the output of the inverting element 85 (diagram L) changes from ONE to ZERO.

This zero-going front, which is applied to the dynamic input R ^{1 of} the flip-flop holding 82 and sets it back to its idle state. The output D goes back to ZERO, which also the second input G of the NOR gate circuit 71 does.

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Since its first input already has the binary value ZERO, the output changes to ONE, so that the amplifier 79 the electromagnets excited that act. The electromagnet 50 moves the cover plate 13 back and causes the second card to come out is removed from the stack.

The electromagnet 57 pushes the pressure roller 54 against the hollow 51, so that the first card is conveyed to the reading point along the following movement path. When moving the map out the photodiode 61 is illuminated from the alignment channel, and the lines H and L go back to the binary value ONE.

When the card reaches the reading point, port 74 go and the input line I of the flip-flop circuit 87 to the binary value ONE via (diagram M), the output of the inverting element 88, the input of which to the Output of the flip-flop circuit 87 is connected, correspondingly changes from ZERO to ONE without producing any effects (Diagram N).

When the reading is finished, the input goes to the monostable Circuit 87 from the binary value ONE to the binary value ZERO via, while its output after a predetermined Time span T changes from ZERO to ONE. .

As a result, the output of the inverting element 88 feeds a pulse front which becomes ZERO at time tg and which, by being applied to the dynamic input B ^{1 of} the flip-flop circuit 76, resets it to the idle state, ie its output D reverses to ZERO. The first input of the NOR gate circuit 78 goes to ONE and its output to ZERO, so that the electromagnets are de-energized.

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At the same point in time tg is given to terminal 71 created to ZERO pulse fornt the central data processing system consent to initiate a new one Duty cycle. The central data processing system sends, for example, a new pulse P. at the time Flip-flop position 76 is in its working state, with line B goes to the binary value ZERO. The new work cycle is only initiated at time t'- if the second card removed from the stack at time t'- is in the Alignment channel is aligned. From this point on, the sequence of operations of the various devices runs in already indicated.

The start of a new cycle is triggered by an incoming from the central data processing system and the flip-flop system 76 (line B to ZERO) setting the command pulse and through the signal which indicates that the last card removed is placed in the alignment channel and aligned what the flip-flop 82 resets (line G to ZERO).

The indicated times as in FIG. * T t. to tg are corresponding time periods in relation to the beginning of the first cycle, ie to the point in time t _Q : t. = 10 ms; t "= 30 ms; t "= 45 ms; t ^ = 82.5 ms; t ^ = 100 ms; tg = 150ms.

At an operating speed of 600 cards per minute, the delay brought about by the 8h monostable circuit is 17.5 ms and the command pulses are normally separated from one another by intervals of 100 ms. At a lower reading speed of, for example, 400 or 350 cards per minute, the delay of the monostable circuit is set to 67.5 or 89.5 ms. No further adjustment process is required to change the working speed.

Claims;

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Claims (7)

Claims (ly card feeder for conveying cards along a predetermined movement path from an initial point to an alignment point and to a reading station through a large number of elements (2) which remove the cards with constant and uniform movement, through a cover plate (13) with a variety of matching parts of the cards removing elements (2) bypassing slots, by means of a device to hold a stack of cards against the cover plate to push, by a control device, to the cover plate successively a first shift to the foremost Submit the card of the stack to the action of the card extraction elements (2), and a second shift in the opposite direction To convey direction in order to withdraw the card stack of the removal effect, whereby the operation of the control device is unrelated to the movement of the card extraction elements. 2. Feed device "according to claim I _9, characterized in that the card removal elements consist of at least one endless belt (2). 3 · Feeding device according to claim 1, characterized in that the control device gum adjusting the cover plate (l3) . of at least one via passive mechanical links (25, 23? 22) acting electromagnet (30) consists. 4 »-feeding device Bach claim 3s " äad "reli characterized that the electromagnet! sölie device (29 ₉ 30) on Stroisiiapulse <äie in the effect of the passage of the Kart © through a first photoelectric Liehtsehrankeneinriohtung can be generated, which consists of a photoemitter (48) and a photoelectric Signal generator (50), which are arranged on both sides of the path of movement of the card. 5. Feed device according to claim 1, characterized by continuously rotating alignment rollers (42), wherein the movement path of the Card contains a section which is delimited by an upper guide plate (12) and a lower guide plate (43), and wherein the plates are arranged at such an angle to one another that the card is bent in the longitudinal direction and is pressed against the alignment rollers (42), 6. Feed device according to claim 4, characterized in that the alignment point by a lower longitudinal alignment part (45) and an upper longitudinal delimitation part (40) in cooperation with the lower guide plate (43) is delimited, the lower guide plate to the perpendicular in a substantially inclined small angle and the inclination is geriohtet such that the map of the action resting on the guide plate the alignment rollers (42) is withdrawn. 7. Feeding device according to claim 5> characterized in that the resting of the card on the Längausriohtteil 45 is displayed at the Ausriohtstelle with the help of a second photoelektrisohen Lichtsohrankeneinriohtung, which consists of at least one photoemitter (60) and a photoelectrisohen signal generator (6l), the are arranged on both sides of the Ausriohtstelle. 3. Feeding device naoh Anspruoh!, Characterized duroh a • rste photoelectrically free lightning bolting (48, 50) to «Show de · Durohgangs a map duroh a vorbeiwite - 22 - 109853/1270 Place the predetermined trajectory through a second photoelectric light barrier device (60, 6l) for displaying the resting of a card at the alignment point detector means for indicating the passage of a card through the reading station (SL), the control means a start input (70) for receiving start commands a central data processing system (UC), a first, a second and a third input (72, 73 or 7 * 0 » having which on by the first (50), second (6l) photoelectric light barrier device or the detector device respond to delivered signals, and through a logical control circuit (conditioning network), so that the start-up the first card removal process from a start signal, the start of the second card removal process from a Alignment signal at the second input (72), which indicates that the first card removed is aligned with the alignment point, and the start of the subsequent card removal processes jointly both from the start signal and from the alignment signal are dependent, the start signal being controlled by a release signal that the central data processing system in response to a signal indicative of the passage of the card through a job. MB / Sbh - 22,648 109853/1270 Blank page