DE1921882A1 - Coding device - Google Patents

Description

Vogue Instrument Corporation in Plainview, N ₀ Y.

Coding

The invention relates to sin ilodiergercLt and im particular to one for generating encoded digital electrical signals entered through a keyboard Specify alphanumeric characters.

Such an encoder, to which the invention relates, is used, for example, for the input of binary-coded electrical signals on the basis of the actuation of keys on a keyboard. The coded electrical signals are etilocher to a Verarbeitungsgerat such JJ _{e e} a data processing system, a paper strip, on a magnetic recording device, given a binärkodegesteuerte typewriter or other GerlLt that requires a binary-coded input information.

7/0890 bad original

The main aim of the invention is to provide a coding device with To create a keyboard is proportionate has a simple, inexpensive construction and relatively few moving parts, making it cheaper to manufacture and is more reliable in its operation than conventional coding devices,

According to the invention, this task is carried out by a coding device solved with keyboard, in which the activation of a each key a sudden change in magnetic

^ Flux within an arrangement of magnetic cores causes, on every core there are turns in a coded pattern so that the sudden river change in the core to an electrical output signal in accordance with the coded arrangement of the windings moves. By pressing each Tciste a .taker moves against the magnetic core, which creates a magnetic Circle including the core schliej.it. the Metgnetischc exerted on the anchor by the core Attraction still accelerates the movement of the anchor and so establishes a rapid edema in the nucleus safe, which in turn produces an output signal of sufficient voltage in the windings.

ψ A i "i £ i.gnet is to use, to hold the armature from the core removed, until the button is pressed. The part of the magnets of the key motion opposite resistance makes it necessary to apply the button greater Losbreciikraft. Also thereby Again, in the end, it increases the speed of the armature and the voltage of the output signal produced by the windings.The magnet, together with its carrier, forms a shunt through which the magnetic flux produced in the armature can bypass the core as long as the key is open ₈ is in its rest position so that the flow through the core is kept to a minimum until the button is pressed.

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BATH ORIGINAL

the anchor again after pressing the relevant key to return to its original position »

The invention will now be described below on the basis of the exemplary embodiments shown in the figures.

Figure 1 is a perspective view of such a device, partially broken away; the

Figures.: And 3 are schematic representations for clarification the operation of the device shown in Figure 1;

Figure k is a cross section according to the line IV-IV in Figure 1j

FIG. 5 is a schematic perspective view of part of the device shown in FIG

FIG. 6 is partly a 'cross section, partly a j>' n-'sees from another execution format i dcö er - founding devices and

Figure 7 is a partially perspective and partially Schematic representation yet another u mi; ..— runningsform ucr Drfiuduug.

The generally designated in Figux '1 with 20 Gcr.it has a housing 22 and a use _t, euercll denoted by 2k keyboard, üio T.istt.tur 2'l- has a .mor-dtiuuij of Γ. .-xoti, for example 3'I, jü, 3 ^ and ^ 0, as well as function: "buttons 26, 28 and 30, which extend upwards through holes in the upper part of the surface 22 . These keys Uüniicn in jeciem jjew-uirfchLeu Iluster mftreteii, but ersCiiciiit

9098U / 089Ö

it is particularly useful to arrange them in the manner familiar from typewriters, teleprinters, and the like. "By actuating the letter and function keys on the keyboard, the operator can output binary-coded signals generate by an electrical cable 32 of a data processing system or other GerTit can be transmitted which binary coded Input signals required.

As k from figure and as seen from Figure 1, ^ each letter and Funktionstciste above a Fingerauf- location portion which is connected to a plate-shaped shank i.st. For example, the finger rest parts of the tuffs jk, 36, 38 and ko sit on the shafts 35, 37 »39 and kO, respectively. Each of these shafts is connected to a different one of several horizontally attached elongated rails k2 . The shaft is, for example, as cius Figure 1 can be seen, attached to the rail 42 35, the d _c adhesive 37 ^ai i (-IOR rail kk _t the shaft 35 at the Scalene ku and Sciiaft k] h'o to the rail.

Each of these Senienen, generally designated 92, au iiixeiii rucLcw ^ rtigeu end having a slot-less W-shaped with an L-profiled from a -uiz'Uil recesses 52 within a support member 50 cooperates. The loose engagement enables the rod in question to move freely up and down as well as to and fro to the side.

As. cius figure k , engages in a recess 56 within each of the rails ⁽ J2 the upper end of an ul ^ ttfeder ^ k . This is the front end of each rail against a stop. 60 on a base plate 58 n-.i pressed on top, L-shaped Y / iclurigstrüger 62 uua 6h sine, to watch with the Tr-.tg member ~ jO attached by means of a square 59 η of the base plate ^ 8 .

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The winding supports 62 and 6k are surrounded by a coil 66 which accommodates the rear part of all the rails 92. If the coil 66 has a current flowing through it, it causes a magnetic flux running longitudinally through each of the rails 92. The rails 92, the support member 50, the base plate 58, the stop and the keyshafts '35 t 37 etc 'consist of a magnetizable material of relatively high magnetic permeability, but relatively low remanence, such as eg. low carbon steel or soft iron. In this way, several complete magnetic paths are formed by the rails 92 together with the members 50, 58 and 60. A flux produced by the coil 66 in these paths tends to keep the rails in contact with the striker 60 for as long they take their highest, i.e., starting position. On a support plate 68 made of magnetizable material there is a number of protruding protrusions 70 "72, Tk ₁ 76, etc., which are also made of magnetizable material." Each of these projections plays the role of one. Magnetic core _s which is surrounded by one or more windings 69 . Each of these cores is located immediately below the lower shaft end of a key. For example, the core 70 is located under the shank 35 of the key 3 ^, the core 72 below the stem 37 'of the core 74 below the stem 39 and the Kern.76 below the stem k ~ \ "To serve the cores equally as wrappings for the button's. Keys and cores are arranged in four rows, with the keys in each row opposite those in the next row. According to this arrangement, only one of the rails 92 is located directly above the center of a core.

Figures 2 and 3 show schematically the mode of operation des.Kodiergerätes 20 from Figures 1 and k again.

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They show the rail kk with its associated parts in two different operating positions. The magnetizable members 50 »58 and 60 are indicated here as a single continuous nuignetic part 78 for the sake of simplicity. The point 80 corresponds to the pivot point of the rail kk; the coil 66 surrounding all the rails according to FIG. 1 is indicated in FIGS . 2 and 3 as a separate winding which surrounds the rail kk. A direct current source 86 is connected to the coil to energize it. The core 72 has two turns 8 ^ and 84. One end of each turn is connected to ground, while an output signal is emitted from the other end when a flux builds up in the core 72.

The magnetic. Circles are indicated by shading the relevant links, while the direction of flow is indicated by the arrows in FIGS. If the rail 44 is in its upper, ie starting position according to FIG. 2, there is a magnetic circuit which includes the rail 44 and the link 78. In this condition the core 72 and rod 44 are a considerable distance apart so that the path across the portion of the rail 44 to the right in the figure and the member 78 present a low resistance shunt with respect to the core, thereby shunting in the core 72 only an extremely small flow occurs. The combined effect of the force developed upward by the spring 54 and the magnetic attraction force between the upper right end of the spring 54 and the magnetic -rinziehungskraft between the upper right end of the link 78 and the right end of the rail 44 leads to the fact that the rail is held in its uppermost position.

BATH ORIGINAL

909847/0890 " ^A.

1821882

If the rail is now to be pressed down, as shown in FIG. 3, the button does not move until the force exerted by the operator on it reaches a sufficient value to overcome the magnetic force of attraction between member 78 and the rail "If the breakaway force is exceeded, however, the splint suddenly detaches itself from the link J8 in order to move downwards with great acceleration." If the splint reaches a certain point between the core 72 and the link 78 ", the magnetic flux begins to flow increasingly through the core 72 and to a correspondingly lesser extent through the end of the link 78 shown on the right, so that the magnetic force of attraction between the core f.2 and the rail kh increases very rapidly. As a result, the rail hk comes into contact with the core 72, with a new magnetic circuit over the part of the rail shown on the left kk _t the core 72 and the .section shown on the left If the rail kk moves rapidly from its upper position to its lower position, the flux through the core 72 also increases rapidly, as a result of which an electrical voltage is induced in the two windings 82 and 8 on it . Both spinning units form an output signal which is passed on through the cable 32 as a bin; ukodiei ~ toü signal, as will be described in detail below.

A particular advantage of the 'invention is very uvAi out occurs, the downward movement of the rails 92 on the Tasteadruck rapidly, regardless of the speed with which is acted on the button. This ± at the magnetic attraction force between the rail 92 and the member betreffeudeu attributable 60 through which the armature zunickst is held in its upper position. So cilso the operator must first have one

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Apply a certain minimum pressure on a key before the rail in question starts moving. The rail then snaps down to engage the core 72 due to the rapid release of the magnetic force of attraction between it and member 60 as the rail moves downward and because of the relatively large compressive force exerted on the key. This course of action is very desirable, since it leads to the greatest possible change in flux in the core 72 and thus to the greatest possible induced voltage in the windings 82 and 8k .

Furthermore, the flux change in the core is increased by having a leakage flux or residual flux at the home position button located is reduced to a 'minimum value, so that the flow difference is up to the level of the flux created by the winding 66 becomes very large. This is achieved by doing the Link 60 and the front part of the base plate j> 8 as

Bypass path for the core of low reluctance forms, provided the key is in its home position is located.

Another advantage of the key mechanism according to the invention is that the rail after applying the required minimum force on the key of the member 60 suddenly releases and the anchor in question on the core with a certain minimal noise occurs, which, like the resulting impact, from the .Bedienungsperson can be perceived. This is how the latter finds out whether the button has been pressed properly.

Further advantages of this construction are that No electrical contacts that are subject to contamination, no parts sliding on each other that create a

909847 / U890 bad ORiaiNAL

Could experience wear and tear, with extremely few movable ones

appear
It is therefore extremely reliable, easy and inexpensive to manufacture «

The spring $ h is provided in order to return the rail kk to its overhead, ie rest position, after it has come into contact with the core 72 and has been released by the operator. It is evident that the upwardly directed return force exerted by the spring 5 ^ ^a uf the rail 92 at in-the lowermost position rail, the magnetic attraction force between the core 72 and the rail respectively, the armature thereon must predominate.

The spring $ h is preferably relatively soft. A relatively hard spring is probably not desirable because the return force caused by such a spring increases rapidly with increasing deflection. This would be disadvantageous, since the force exerted by the spring at the various points of the rail's path of movement would make the magnetic forces of attraction on the part of the core on the one hand or the stop member 60 on the other hand far into the background, so that the rapid snap movement of the keys would not take place Furthermore, the use of springs that are so stiff could require too great a pressure force for the key actuation. The spring $ k is preferably made of a non-magnetic material, for example a beryllium-copper alloy, so that no undesired magnetic shunt between the rail 92 ^; and the plate 58 comes about, and is still relatively thin (e.g. 0.125 mm thick) to be sufficiently soft.

It would also be desirable to give the spring '5h such a ChartUctex-istik that its force with increasing

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BATH ORIGINAL

- to -

Deflection decreases. The spring can do this obtained by such a shape that the effective lever arm, via which the bending force engages, increases with increasing deflection. -

Spacebar ko consists of a substantially hollow-profiled bar (Figure 4), which is connected by post 91 loosely dom AnscjuüLagglied 60 * At one point of its length has the strip 26 a .Vorsprung ~ 93T eggs immediately above a certain rail 9 * 2 so that pressing the strip 26 out also leads to a pressing down of the rail 92 , whereby the coding indicative of a distance can be achieved in the turns of the associated core *

Looking again at Figure 1, it can be seen that a well-known ball-and-tube combination is provided to ensure that only a single key can be depressed at any given time. At this ball-tube combination includes a tube 88 which is attached by means of conductors 90 ¹ below the front ends of the rails 92 and fills 9 ^ ge-r with a number of balls. A spring 96 and an adjusting screw 102 at the two ends of the tube are used to press the balls against one another and to determine their position within the tube There is space for balls and the remaining rails can therefore not be operated at the same time.

The ball-tube combination is preferably made of a non-magnetizable material such as brass, so that the course of the magnetic fluxes passing through the rails 92 and other magnetizable parts

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not beelnfluse.t will. «although, also, an apprenticeship made of magnetizable material would not cause a substantial magnetic shunt «For the same In other respects, the strip 26 is preferably composed of a non-breakable material such as brass eder plastic

for dl · coding the decisive pattern of the windings The magnetic cores can vary according to the respective requirements or the particular purpose of the encoder Aligning the devices · Advantageously, the base plate 68 carrying the magnetic core is easily exchangeable in the'. Device inserted «with which you can change the code text displayed by the device ·

FIG. 5 shows part of the base plate 68 to the eight Cores are arranged * Only on six of these cores that with 1 «2« 3t ** · 5 and 6 are denoted by the type and Velse "In which these cores are wound, you can better write on" there are windings. In this For example, assume that a coded output signal for the decimal numbers 1, 2, 3, 4, 5 and 6 are generated shall «using a binary code · According to the well-known principles of binary mathematics, three different output signals are required in order to produce each of these Pay fn de «Blnärk.od to reproduce · It is also assumed that that each decimal number is replaced by a binary number (, eiuixii following Table should be reproduced

DeclmalBahl Binary number 1 001 2 010 3 011 H 100 5 101 6th 110

BATH

909847/0890 '"'

In the device according to the invention, the presence of an electrical signal denotes the binary number "1" · .. "and the absence of an electrical signal denotes the binary number ¹¹ O" , the presence of a turn on a core results in a binary "1", while the absence of a turn on a core where a turn could be provided in itself gives rise to a binary "0". As can be seen from FIG. 5, there is a first wire 106 to illustrate the in FIG

W Figure right-hand column of binary numbers, a second wire 108 to represent the middle column and a third wire 110 to represent the left-hand column of binary numbers use. The wire 106 is each looped once around the cores marked 1, 3 and 5. The wire 108 is also looped once around the cores 2, 3 and 6 and the wire 110 once around the cores 4, 5 and 6. One end of each of the wires 106, 108 and 110 is connected to ground, while the other end leads to the input of an amplifier 112 or 113 or 115. The amplifiers amplify the signals induced in the windings and send them through diodes 117, 119 and 121

. a Geiüt 1ih _t in which the coded signal is Verwenduay. The diodes 117 "119 and 121 prevent the transmission of unwanted negative impulses to the device 114" These unwanted impulses then occur. on _# when the rails 92 ^ as their lowest position snap back into their original position, with itapulse again in the windings 6 $} , but of the opposite polarity

those generated by the down rails »

Bus device 11.4, which is indicated schematically in FIG is, kiittii C-US a strip punch for punching the coded

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Signals in a paper strip, a magnetic tape memory to record the signals in magnetic form, a computer that carries out the signals to various Arithmetic functions used, a typewriter that works on the basis of a coded input signal, or any other device exist that also requires a coded electrical input signal.

It goes without saying that the number of nuclei and the number on them located turns in the case of Figure 5 only exemplary Owns character. In one executed according to the invention Coding device occurs, for example, with 52 rails 92 and a corresponding number of cores the corresponding number of character keys and various function keys to operate the rails. One Slide button can be provided to add a coded signal to the output signal in order to indicate whether the coded character corresponds to superscript or subscript, i.e., for alphabetic characters, whether it should display an uppercase or lowercase letter. Under use of a binary code, the shift function would normally as an additional "bit" in the code. The one in the respective core through the upward- negative impulse caused by the movement of a rail can be used to generate a push-back signal after the slide button has been released. Optionally, you can also use two different sliding buttons be provided, namely one around superscript, and the other to bring about the subsidence. Different other functions can be added to to encode other function signals with, as on that considered area known.

In any one modified form of the invention, the winding 66 is omitted, the rails 92 as

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Permanent magnets are formed «although each The entire rail can be permanently magnetic, it deserves the preference that the rails 92 consist of one, permanently magnetized to form ferromagnetic material and those Heat treat part of each rail that extends from the point of contact of the rail with the respective magnetic core extends to its front end in order to give this part a relatively low remanence. Then the rail is exposed to a strong magnetic field exposed, whereby its rear part is permanently magnetized.

The rail 42 shown in Figures 1 and 4 can be viewed as a permanent magnet formed in this way and has, in addition to a rear permanent magnetized Tgil, which extends to the attachment point of the shaft 35 of the button 34 or the like of the rail, a front, non-magnetized part who, however, the river too. is able to guide when the rail 42 comes into contact with the stop member 60. When the splint contacts the core 70, flow passes through the core, thereby essentially bypassing the front of the splint. Such an embodiment of the invention has the advantage of smaller dimensions and weight, since the winding 66, as said, is omitted.

Figure 6 shows part of the keyboard of yet another embodiment of the invention. This corresponds to that according to FIG. 1 with the exception that relatively soft springs 124 are provided between the keys and the anchors on the rails 92. For example, there are springs 124 between the keys 34 and 'J6 and the rails 42 and 44 instead of the key shafts.

.A 90 9.847 / 0890 bad original

to guide the keys and their springs during the downward movement. The springs Mik are also able to ensure that the anchors of the rails snap down with sufficient speed, regardless of whether the operator moves his entire arm, just his hand or just a finger when pressing the button. Energy is stored in the spring, which is then suddenly released when the rail 92 in question tears away from the stop member 60, so that the armature moves downwards at high speed.

Figure 7 shows schematically another arrangement for Zuiffickfuhrung the rails 92 after actuation in their overhead starting position * Instead of the spring5 ^ a cylindrical rod 116 is provided here, d0f is flattened on one side * This rod can rotate from a rotating coil I18 "If the moving coil 1 \ & receives an input signal, it rotates the rod Ho very quickly by approximately $ 0 to hO ° and then brings it back to its starting position, in this the flat of the rod is on the upper &fce."If; If the rails move downwards, they are consequently hindered by the stub Il6 fxicitt. If, however, the moving coil HS sets the rod in rotation, an edge on the edge of the flattening leads the rails 92 back into their initial division. The Brelispule is excited, for example, by a signal from a Öder gate 122, which is fed in via a "Eitunti" 122 the Äintlungeti liogetitien Vers Tür ker "connected * JßdesBial if on one of the outputs of the" · ¥ stru.rker a ^ signal uptx * itt _f inputs the OR-Oatter 120. Signal ■ out » νβΧοϊχ ^ ε UAoL · lz} XTzeT Ύ & ^ ζ ^ β & ^^^ Β the Dreiispttlo Itβ veraalasstj the stick Ii "6 to turn uöiä with it; each pushed-down splint $ 2 in its starting position.

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Claims (1)

Claim e Coding device ι characterized by a keyboard (2k) with a number of keys. (3 - ^ - 40 '") · # .- each of which has a rest position and an effective position, a number of magnetic cores (70-76) 1 a support device for Accommodation of the magnetic cores and keys "a device for changing the magnetic flux passing through each magnetic core as a function of the movement of one of the keys from their rest position to their operative position and the windings on the magnetic cores (69)" following a specific code pattern are wound, so that in these windings induced electrical signals represent the characters corresponding to the keys in coded form. L, device according to claim! , ge ken η ze i α "Ii? * net by a number of magnetic members (92) t which are movably mounted on their support device (50) and can be guided by W one of the keys ('jk-kö) against one of the magnetic cores (70-76), as well as a magnetic flux producing device (66, 92) from which the magnetic flux is passed through the individual magnetic members (92) and, if these are brought together with one of the cores, through this core » j * device, according to claim ü, characterized in that ge k3e η π - \ ze i eh η et, ύ.αΰ the magnetic members (92) elongated Urtii zvtfischen iiiren iötidea connected to each of the keys (3 ^^ o) so that the direction of movement of the tsstea tuef to the longitudinal axis of the magnetic members 90984 7/089 0 BAD ORIGINAL . runs, dtiß a support (50) is provided for pivoting the magnetic members at one of their joints and that each magnetic core (7O-7O) lies within the path of one of the keys in order to limit the movement of the same a 4. Device according to claim Z _t marked h- n e t by a magnetized stop member (60) to the magnetic members (9 ^) by magnetic attraction to hold in their rest position. 5 · · Device according to claim 4, marked e t by a number of springs (i24), each of which between one of the keys (34-40) and one of the magnetic members (92) are arranged and the one removed from the keys Operating force are deformable before the relevant .magnetic member separates from the stop member (60). .6,. Iodating device, geke η η ζ calibrated by a support device, a number of keys (34-4o) movably mounted therein, a number of magnetic cores (70-76) with windings (69 ") located on them" which are arranged according to a code pattern " A number of elongated magnetic rails (92) stored in the support device, which are each connected to one of the keys at a distance from their bearing point, so that a force exerted on the key in question causes the rail to pivot about its pivot point The magnetic cores on the Trcigvorx-ichtung are each arranged within the path of one of the rails, a device for the formation of a "magnetic circuit between each of the magnetic cores and that section of the ¹ associated ocliiene, 909847/0890 _{BAD 0RIG1N} AU which of its iin-joint parts is adjacent, a device (5 ^ j T16-122) for removing the rails from the associated magnetic cores after the rails have moved towards the relevant magnetic core, and a device (66) for generating a magnetic flux in each of the rails, 7. Device according to claim 6 _r dzidurch geke η η - draws that the xinlenks parts of each rail (92nd) is at one of their ends and the device for moving the rails back consists of a spring (3 ^ -), which is on the one hand on the rail in question, on the other hand ά.ti an opposite fixed point supported 8. Device according to claim ö, characterized. characterized in that the means for generating the magnetic flux consists of a permanent component of each rail (92). 9 · Kodfergerä-t with a number of buttons as well electrical generators for generating coded electrical signals when the keys are actuated, characterized in that the electrical generators each have an .anker (92) made of magnetic or magnetizable material which, by actuating the associated key (3 ^ - ^ - 0), is used to generate the relevant coded electrical signal is movable into a first position, a first magnetic circuit (66 _t 7Ο-76, etc.) to lead the .inker in this first position, and a second magnetic circuit (66 , 60, etc.) on a from your first circle 909847/0890 bad OR.G.NAL distant point to guide the anchor into another position * tO, device according to claim 9 »thereby ge fc e η η ζ ei ch η. et | that .one of the magnetic circuits has at least one magnetic core (70-76) in one of the above-mentioned positions with windings (69) located thereon · - has 1 to produce the coded signal, and that a device (66) for generating a magnetic flux as well such doing for forming a magnetic circuit including the core and its armature in Seriödanordttüng with the flux generating Einrieh- $ g "are planned | when the armature ά in his Ker the adjacent position is." 11 «Device according to claim iQ _t geke α η β ei 0 β π et, through a device {lZk) f that seeks to guide the armature (92) from the first to the second position« 12 »Coding device geke η η is ei c ίι α et by a number of keys (3 ^ -4o) _f, each of which has a rest position and an effective position _t a number _fc magnetic cores ^ (70-76) t a carrying device to hold the bars and the cores on the cores in one Electrical windings applied in a code pattern (.69) § a device (66) for generating a la & onen.tisohqri flux, an ISdevice (92) for the magnetic coupling of the flux-generating device with eirt ^ Hi, the nuclei are limited when a certain ^ key is pressed Device (5 ^ i 114-122) for the detection of the relevant nucleus from the flow-generating binary and for the 909847/0890 ^BAD _ ο - magnetic coupling of a magnetic shunt (60 etc.) with the device generating the flow in order to * create a magnetic path bypassing the core when the key in question is in its rest position. 13 »Device according to claim 1k _t thereby ge = - Ic e η η ζ e ic h η et that the keys (3 ^ - * ^ 0) in the support device are .gelosed in such a way that noble ones are able to move back and forth between an effective and a rest position, and that the Coupling means comprises a number of magnetic members (92), each of which is connected to one of the keys ('J ^ -ko) and, upon actuation of the relevant key, is movable in the direction of the relevant core (7O-7O) while it is from the Core to the magnetic shunt (60 etc ») returns, provided that the key takes its rest position again. ', k, device according to claim 13, characterized in that - indicates that the decoupling device (5 ^ i · 16-122) for returning the magnetic member (ί? θ) to the magnetic shunt (60 etc.) and away from the relevant magnetic core (7®- * 76) after there has been a coupling between this core and the fluid generating line (66). , 15 device after objection lk _t dtt by ge - Ic e η ti ζ e ic h η et that the movement device has a spring (5 ^) which the magnetic member (90) with a force depending on the magnetic love ns-(6ö etc «) BAD ORIGINAL 9.0 9847/0890 " seeks to guide what the magnetic attraction
between the magnetic member and the core (70-76)
even if the magnetic link prevails
Is closest to the core. 16. Apparatus according to claim 1 ^ _1, characterized in that the movement device has a cam (116) with the magnetic member (92) in
Intervention device, as well as a device (118) for. Drive
of the cam in order to guide the magnetic member against the magnetic shunt (60, etc.) in one turn (ö9) on the relevant core (7O-76) after an electrical signal has been generated. ] 7β Gerdt according to claim 12, characterized geke η n », that the generating the magnetic flux
Device - has a winding (66) together with an electrical power source for this. 18. Apparatus according to claim 12, characterized in that g e k e η n- draws that the magnetic flux generating
Device · has at least one permanent magnet. ϊ9 · Device according to claim Γ3, characterized in that g \ e k e η η— shows that each of the magnetic links (92)
is pernuinentinag-netized and that the magnetic members together form the device generating the magnetic flux,
form _β • A BATH
909847 / 089Q 20. GeriLt according to claim 13, dadurcli g e k e η not Use the magnetic links in the carrier are pivotably mounted »around with the core concerned (70-76) with simultaneous removal of the magnetic fastener (60 etc.) in contact and then out of contact with the core and in contact with the magnetic To be able to shunt. 21. Kodiex'gerät, characterized by a keyboard (24) with a number of keys (3 ^ -40), each of which has an upper rest position and a lower effective position, a number of magnetic cores (70-76), a support device for ^ ufnalime of the magnetic cores and the keys, which are movable with respect to the magnetic cores, a device for changing the magnetic flux passing through each magnetic core as a function of the movement of each of the keys from their rest position to their operative position, electrical windings located on the magnetic cores (69) "which are laid around the cores in a predetermined binary-coded pattern, so that electrical signals induced in these windings represent the characters corresponding to the keys in binary-coded form". set, wherein the means for changing the magnetic flux comprises a number of elongated rails (92) of magnetic or magnetizable material, a magnetic flux generating device (66), a magnetic shunt (6q), each of the rails between its two ends is connected to one of the keys and is pivotably mounted at its one end between an upper stop in the form of the magnetic drive connection and a lower stop in the form of one of the cores, between which two positions it is depending on the up and down movement the one in question BAD ORIGINAL 90984 7/0890 Key is movable, a magnetic bearing member (50) »to which the rails are articulated, one end of the magnetic cores and one end of the shunt being magnetically connected to the Iiager member (50), the rails running essentially parallel to each other and the Cores are arranged at a distance and a core is located directly under each of the rails, as well as a device ($ ki 1i6-122) for returning the rails against their upper stop (60) after they have moved against the lower stop in the Windings have caused the output signals concerned. 22 «Device according to claim 21, characterized in that - ke η η ζ ei without t _# that the device generating the magnetic flux> has a winding {66} which surrounds the hinged end of the rails (92), as well as an electrical power source for the winding, 23 «Device according to claim 21, characterized in that - denotes that the device generating the magnetic Pluü consists of a permanently magnetized section of each of the rails (92) between its deflection point and the connection point with the relevant key {3k-kO) * 24. Equipment according to claim Zi _t thereby "ye - ke ti η ζ eic Ii η et that the Äüekfülirutigsvorriclitung consists of an elongated curved leaf spring (54) which is located on the one hand in a recess (56) on the underside of each of the rails in the cows at the opposite end, on the other hand a base-side support surface is supported untex ^ half of the rails. 909847/0890 _ßÄD - 2k - ; _5 · device after. Claim 21, characterized in that the Rückfuhrungsvorrichtung having a cam (ii6), which is rotatably mounted below the ends of the rails 92 a spinning reel (1 18) in driving engagement with the cam and an electrical switching arrangement (112- i 15 »12θ) to feed the moving coil every time a signal has been induced in one of the windings {69). 26, according to .ansprucli 2i, characterized in that each key (3 ^ -4o) is connected to the associated rail (92) via a spring (i2k) . 27. Device n .; ch · claim 21, characterized in that the magnetic cores (7Ο-76) arranged with their turns (69) on a plate (68) which is exchangeably stored in the Gex ^ ät 28. Device according to one of the preceding claims, thereby g e k e η η ζ c i c h η et that the keyboard (24) has at least one slide button, the movement of which from their rest position to their effective position in one the magnetic core causes a pushing signal, as well as a Device for the backfiliirung the slide key after their Release from its effective position to the rest position, whereby the operating core is an inverted shift signal evokes. BATH ORIGINAL 9098A7 / 0890