SU49537A1 - Device for checking the perforations on the maps for tabular machines - Google Patents

Description

The invention is an electric test device for checking the correctness of perforations on maps for tabular machines, allowing the movement of a controlled card when you press the contact keys.

In FIG. 1 shows a longitudinal section through a device according to the invention; FIG. 2-schematic offset image of the keypad and pin contactor; ig. 3 is a longitudinal section through one of the spring-loaded pin contacts.

On the right side, a box with keys 18 is fitted to frame 17 (phy. 1). Electromagnet 11 and measles 12 are reinforced inside the frame; The measles are connected by means of a pin to the mechanism of 20 dogs, and near the electromagnet a lever contact 19 for the tabulation keyboard is installed. In the middle of the frame, in the slot there is a plate for contact pins 2, and on top of plate 1 is a matrix 3 (Fig. 1 and 3). A pin mechanism is fixed on the underside of plate 1 with the following parts: groping pin contacts 2, spiral springs 4 to lift

contacts 2, stop bar 5 for contact pins 2, textolite pan; 6 for contacts, spring steel contacts 8, lower tire 7, upper tire 9 and a resistant insulating nut 10.

A resistance 13 and a tube for wires 14 are strengthened to the bed next to the ditifet mechanism.

From the back side to the frame, the side plate 15 with the carriage 16 is reinforced.

In the keyboard box (Fig. 1 and 2), upper tires 21, lower tires 22, spring steel contacts of a key 2d, keys 24, conductors 25 are installed.

The device is used and operates as follows. The card is inserted between the matrix 3 and the plate 1, located on the carriage 16, and is held to the right. The bottom of the card is slightly pressed by the action of the springs 4 twelve pin contacts 2. If there is a puncture on the card, then the pin 2 rises under the action of the spring 4 (Fig. 3) and, thereby, the stop nut 10 raises the spring contact 8 connecting it to the upper bus 9.

All spring contacts 8 are connected in parallel with the same number.

spring pins 23 of the keyboard (Fig. 3), and if you press the key 24, the number of which corresponds to the puncture number on the card where the pin is raised, the current will flow from the plus (Fig. 3) through the bottom bus 22 of the keyboard to pin 8 of the pin through the top bus 9, through electromagnet 11 and through resistance 13 to minus, as a result of which the measles are attracted by electromagnet and will activate the mechanism of 20 dogs and the carriage will move one column. When you press any other key that does not correspond to the puncture on the card, the current will pass from bus 22 (plus) through keys 23 to pin 8, adjacent to it, in view of the absence of a puncture to bus 7 and, mine, electromagnet, to resistance 13 and through resistance by minus, measles is not trapped and the carriage will not move; but if you press two keys with one puncture on the card, where one of the pressed keys corresponds to the puncture number, then the magnet also does not attach.

If there are two punctures on one column on the card, then two pins 2 will be lifted through them and two pins 8 will be raised, which will close to the upper bus 9.

When you press one key, the current, the magnet, will pass through the resistance to the negative. If you press the two keys where the punctures correspond to the keys, then the magnet will no measles and the carriage will move one column.

When the field is empty (no puncture on the card), if you press any of the keys, the carriage will not move, because the current through the bus 7 will go to resistance 13. There are an additional key-skip 26 (Fig. 2) for the unbroken speakers on the card passes from plus through part 2 to contact 26 (by means of contact 19a), through the top tire 9, through the magnet and through the resistance to the minus, caused the measles to be pulled and move the carriage one column. If the card passes from key 26, a random puncture will appear on the card, the current will pass through the resistance to the negative, mine electromagnet, and the carriage will not move.

When there are a number of non-pierced clavia columns, a 26 is pressed and held in the pressed position; then the following is obtained: the electromagnet attracts measles, but since the key is kept pressed all the time, the electromagnet does not release the core. In order for the electromagnet to release the measles, there is a lever contact 19. The role of this contact is as follows: when the electromagnet attracts measles, the measles in its final course closes the lever contact 19, then the current passes from the plus through the lower bus 22, through contacts 19 and 28 (since they, when the key 26 is pressed, connect themselves to each other), without contact 19, which is closed by the core when it is attracted to the electromagnet through resistance, the electromagnet, to the minus. Then the electromagnet releases the measles and the carriage advances on the single column. The anchor, however, with its reverse movement with the lever, disconnects the contact 19, but since the key 26 is all the time in the pressed position, the electromagnet again attracts the measles and the same process repeats, i.e., in the presence of a number of impenetrable columns on the card with one touch of the key 26, the carriage quickly goes through all the impenetrable columns up to the first penetration. The perforation shift, which is 0.5 mm thick, is captured as follows: when a punched card, on which there is a shift, passes, between the die 3 and the plate 1, the edge of the hole, which is not on the card, is in the middle of the column, but Someone does not allow pin 2 to fully lift and thereby lift contact 8 and close it with bus 9, i.e., when the key corresponding to this puncture on the card is pressed, the circuit will not be received and the carriage will not move.

The subject matter of the invention.

Claims (3)

1, Device for checking the perforations on the cards for tabular machines, characterized by the use of included spring-loaded. pin contacts 2, when you press the corresponding contact key 24, electromagnets 11, control them, their movement of the carriage 16 with the card on one column when the hole is correctly punched, 2. The form of the device according to claim 1, characterized by the use of an additional button 26 and contact 19a, which are used to activate electromagnet II, in order to advance the card in the presence of a number of unpunched speakers in it. 3. When adapting to PP. 1 and 2, use pins 2 provided with a conical head to trap more than 0.5 mm in shear perforations. to / A / 9 FIG. /. D- / them; -aw "a / 10, Fig. 2. 22 23 8 FigZ.