DE277863C - - Google Patents

Description

IMPERIAL

PATENT OFFICE.

PATENT LETTERING

- JVl 277863 CLASS 21 a. GROUP

Patented in the German Empire on January 24, 1913.

The writing devices on the transmitters of writing telegraphs are connected to a contact, when lifting the writing device, in particular the pen from the writing surface, is influenced in such a way that the writing organ of the recipient is ineffective occurs. The purpose of this arrangement is to cause the on the writing surface of the transducer not visible movements of the

ίο Not even writing device on the writing surface of the recipient come to the fore, for example when passing from a Word to another or from one word to an i-point or a punctuation mark or the like on the There are no connecting lines on the writing surface of the receiver.

The contact device must therefore be independent of the setting of the pencil lead always go into or out of activity as soon as the lead of the encoder pen touches the writing surface the encoder comes into or out of contact. With some telegraphs one has this condition is met in that the writing surface itself was arranged resiliently, so that it was pressed down by the pressure of the transducer pen and thereby the contact influenced. However, this arrangement can only be achieved with a relatively small writing surface perform, because when a certain size of the writing surface is exceeded, the hand of the Writer rests on the surface and therefore presses it downwards, even when the pen is picked up between two words.

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Therefore, for devices with a larger writing surface, you have the task of doing this, for example tries to solve that one articulated the pen on the writing lever of the encoder and used this articulated mobility to influence a contact. Even has tried an arrangement that consisted in that the outer sleeve of the pen is arranged displaceably in order to move the contact by their displacement. The right Function of these devices is always dependent on the fact that the end of the pen lead protrudes from the sleeve by a certain amount and only within very narrow limits deviates.

Those contact devices which are operated by the outer sleeve of the pens, are in turn dependent on that the pen is handled in a fairly vertical position. But now they should Telegraphs can also be used by laypeople, and here it happens that the one Writing unscrews the adjustable pen refill a little more than someone else or handles the pen more or less inclined. As a result, contact with them became Devices not sure affected in the correct way.

The present invention avoids the disadvantages and achieves a completely reliable one Influencing the contact by the fact that the movement of the contact is only from depends on the pressure that the pen

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mine on the paper, regardless of the length of the lead out of the sleeve of the pen and it does not matter whether the pen is vertical or in a more or less inclined position to the writing surface is handled. Once at the subject of the present Invention of the pen is placed on the paper, the contact makes such Position one that in the receiver the movements

ίο of the pen must be repeated. One lifts on the other hand, if the pen is removed from the writing surface, there is an immediate shift in the contact in such a way that the recipient's writing organ is temporarily ineffective.

An embodiment of the invention is shown in the drawing in a section.

On or over the writing surface α , the writing device is moved, which consists of the writing lever b and the holder c , to which the pen to be described below can be attached at such an angle that when guiding the holder c by hand according to Art When writing, the pen is as perpendicular as possible to the writing surface α . The writing lever b , by means of its movements following the executed lettering, in a manner known per se, causes movements of a reproduction device in the same direction in the receiver, for example a light beam acting on a light-sensitive surface.

The actual pen sits in a sleeve h firmly connected to the holder c and consists of the actual pen lead β, which is immediately surrounded by a sleeve f, which can be resiliently cut open at its lower end to hold the lead e , as indicated by dotted lines Lines is indicated. The sleeve f is connected to the outer tube χ of a shaft which is inserted into the shift lever and, in addition to the tube χ, also contains a central rod d which is separated from the tube χ by an insulation y. With the middle rod d , the housing u of the pen is connected, on the upper end of which a cap m is rotatable. The cap is guided on the housing u by screws ν which engage in an annular groove in the housing u .

Inside the housing u , the sleeve f is surrounded by a sleeve η which is separated from the housing u by insulation r . This sleeve η has a helically wound groove and is firmly connected to a contact piece g at the top.

In the screw groove of the sleeve. " engages a lateral approach q of a pen p, which is arranged inside the sleeve f behind the pen refill e . The shoulder q protrudes through an axially extending longitudinal slot 0 of the sleeve f , and the pin φ is in this way guided in a straight line in the axial direction and secured against rotation.

A contact piece s and a leaf spring t are attached to the cap m in the cover. The latter engages with its ends in cutouts of the insulation sleeve r which is firmly connected to the sleeve η and the contact g and which is thus forced to follow the rotations of the cap m . The contact surface g is expediently made of silver.

If it is now to be written, the entire device is grasped at the handle k connected to the holder c, similar to a pen holder when writing, and the pen is lowered onto the writing surface α and moved on it according to the word to be written. As a result of the pressure exerted on the pencil lead e , a pressure is also exerted on the pen φ , which is transferred through the shoulder q to the sleeve η and thus to the contact g . Accordingly, the contact g rises under the tension of the spring t and comes into contact with the contact s. There is now a conductive connection between the tube χ and the rod d of the writing lever, namely from the tube χ via the sleeve f, the contact g, the contact s, the sleeve m, the housing u and the rod d. From χ and d , the current goes to the receiver in a manner that is not of interest here, in order to cause the word written in the encoder to be received there in a manner that is also not considered here. If the writing movement is interrupted, e.g. B. when passing from one word to another by lifting the pen from the writing surface, the spring t pushes the sleeves r and η down again and thereby interrupts the contact g, s: The transmission of the letter to the recipient is thereby temporarily suspended until the pen is put back on to continue writing. The spring t thus has a double function in that it serves as a spring for opening the contact and also as a driver between the cap m and the sleeve η .

By rotating the cap m , the pen refill e is supposed to be pushed more or less far to the outside. When the cap m is turned to the right, the pin p is pushed forward in the axial direction by the sleeve η being carried along and by the engagement of the at rate q in the screw groove of η , and the pencil lead e is thereby also pressed further outwards. By turning the cap m in the opposite direction, the pen p is pushed back, and the pen lead β also goes inwards to a corresponding extent when it is placed on the writing surface.

The lead guide is on the pen holder equipped with an axially rotatable handle attached that on the one hand the pen holder can swing around the lead axis can rotate and on the other hand the mine axis

and the axis of the pen holder form such an angle that when the pen holder is in the normal writing position, the lead is always as perpendicular as possible to the writing surface. Since the tube χ connected to the sleeve f is rotatably inserted into the writing lever b , the entire device can be rotated around the axis of the rod d and placed on the writing surface after writing is complete.

ίο Instead of pencil leads can be used to achieve a silver mine can be used for less wear and better contact, the writing surface treated with zinc white or another suitable substance writes.

Claims (4)

Patent-to sayings: i. Writing device for writing telegraph transmitter with contact device, which makes the writing element of the recipient temporarily ineffective when the pen is lifted from the writing surface, characterized in that in the axially movable, contact-controlling part of the pen holder, a special refill (e) is used, which the when writing from the writing surface transfers pressure exerted on the movable part and can be readjusted to compensate for wear. 2. Writing device according to claim 1, characterized in that a contact piece (g) against the pressure of a spring (t) against a second contact piece (s) is displaced against a second contact piece (s) by the pressure exerted on the pen lead when it is placed on the writing surface, while when the Pen the spring (t) separates the contacts from each other. 3. Writing device according to claim 1, characterized in that the lead rests against a pin secured against rotation (ρ) which engages in a screw groove of a rotatable sleeve (s) in such a way that the lead can be advanced more or less by rotating this sleeve . 4. Writing device according to claim 3, characterized in that the rotation of the sleeve (s ) is initiated by a cap (m) which is connected to the sleeve (s) by a spring (t) is connected in such a way that this spring (t) simultaneously serves as a driver for the rotation and for the automatic separation of the contacts, one of which is connected to the cap (m) and the other to the sleeve («). 1 sheet of drawings.