DE304667C

DE304667C -

Info

Publication number: DE304667C
Application number: DENDAT304667D
Authority: DE
Priority date: 1914-01-12
Also published as: GB191400824A

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

Die Erfindung betrifft eine Vornchtung zur gleichzeitigen Herstellung von mehreren Durchschlagkopien auf Schreibmaschinen mittels eines Hilfsfarbbandes, das zwischen dem Hauptfarbband und der Schreibwalze hin und her geführt wird, um mehrere Bandlagen zu bilden, und dessen Spulendrehachsen parallel zur 'Schreibwalzenachse am Papierschlitten vorgesehen sind. The invention relates to a device for the simultaneous production of several carbon copies on typewriters by means of an auxiliary ribbon between the main ribbon and the platen is reciprocated to form multiple layers of tape, and its spool axes of rotation parallel to 'The platen shaft is provided on the paper carriage.

»o Bei den bekannten Vorrichtungen dieser Art ist das Hilfsfarbband derart angeordnet, daß»O With the known devices of this type the auxiliary ribbon is arranged such that

' . die an den Enden des wirksamen Teiles des Hilfsfarbbandes vorgesehenen Führungen einen, verhältnismäßig großen Abstand der einzelnen Bandlagen voneinander bedingen, so daß nur die mittleren Teile der Bandlagen des Hilfsfarbbandes eng aneinander liegen. Aus diesem Grunde ist es erforderlich, am Anfange und am .Ende einer Zeile die Typenhebel kräftig'. those at the ends of the effective part of the Auxiliary ribbon provided guides a relatively large distance between the individual Condition tape layers from each other, so that only the middle parts of the tape layers of the auxiliary ribbon lie close to each other. For this reason it is necessary to force the type lever at the beginning and at the end of a line

ao anzuschlagen, um lesbare Durchschläge zu erzielen. ao to achieve legible copies.

Der Erfindungsgegenstand bezweckt, den Nachteil des so bedingten ungleichmäßigen Anschlages dadurch zu vermeiden, daß das.The object of the invention aims at the disadvantage of the so caused uneven To avoid attack by the fact that the.

Hilfsfarbband derart hin und her geführt wird, daß die so gebildeten Bandlagen an den Enden denselben Abstand voneinander haben wie in der Mitte der Zeile. Zu diesem Zwecke sind die Führungsplatten für das Hilfsfarbband mit dreieckigen Ausschnitten und die eine Führungsplatte mit einem Schlitz ausgestattet, wodurch gerade und schräge Führungskanten entstehen, welche das Hindurchführen der dritten Bandlage zwischen den beiden ersten Bandlagen gestatten. Dadurch, daß die Führungen zur Bildung der zweiten und der dritten Bandlage sich außen an den Führungsplatten befinden, wird noch der Vorteil erreicht, daß die Länge der Papierwalze zum Schreiben möglichst ausgenutzt werden kann.Auxiliary ribbon is guided back and forth in such a way that the tape layers thus formed on the Ends are the same distance from each other as in the middle of the row. To this end are the guide plates for the auxiliary ribbon with triangular cutouts and the a guide plate equipped with a slot, creating straight and sloping guide edges that lead through allow the third layer of tape between the first two layers of tape. Through this, that the guides for the formation of the second and third layer of tape are on the outside of the Guide plates are located, the advantage is still achieved that the length of the paper roller can be used as much as possible for writing.

Auf der Zeichnung ist:On the drawing is:

Fig. ι eine· Draufsicht auf die Vorrichtung zum Halten und Zuführen des Hilfsfarbbandes, Fig. 2 ein Querschnitt dieser Vorrichtung,Fig. Ι a top view of the device for holding and feeding the auxiliary ink ribbon, Fig. 2 is a cross section of this device,

Fig. 3 eine Draufsicht auf eine Blechplatte, welche dem Hilfsfarbbande als Führung dient,3 is a plan view of a sheet metal plate which serves as a guide for the auxiliary ink ribbon,

Fig. 4 eine ähnliche Ansicht, wobei die Art der Führung des Hilfsfarbbandes verbildlicht ist,Fig. 4 is a similar view illustrating the manner in which the auxiliary ink ribbon is guided is,

Fig. 5 eine Vorderansicht einer Bandspule und deren Befestigungsweise.Fig. 5 is a front view of a tape reel and the manner in which it is attached.

Die den Erfindungsgegenstand bildende Vorrichtung kann an irgendeiner offen schreibenden Maschine angebracht werden. Sie umfaßt · ein Hilfsfarbband 69, das durch einen Rahmen getragen wird, der an dem Papierschlitten der Schreibmaschine so angebracht ist, daß er die Bewegung des Papierschlittens mitmachen kann. Der Rahmen umfaßt unter anderem zwei eigentümlich ausgestanzte Platten'70, 71, durch welche das Farbband so hindurchgezogen ist, daß durch Hin- und Herführung mehrere Bandlagen gebildet werden, die parallel zur Schreibwalze liegen und von den Typen getroffen werden. Der Hilfsfarbbandträger ist ausschwingbar an dem Papierschlitten angebracht, mm. .das FarbbandThe device forming the subject of the invention can be connected to any open writing Machine attached. It includes an auxiliary ribbon 69 which is passed through a Frame is carried, which is attached to the paper carriage of the typewriter is that he can join the movement of the paper slide. The frame includes below other two peculiarly punched-out plates '70, 71, through which the ribbon so is pulled through so that several layers of tape are formed by guiding them back and forth, which lie parallel to the platen and are hit by the types. The auxiliary ribbon carrier is attached to the paper slide so that it can swing out, mm. .the ribbon

Claims

Swings up and back when not in use so that the typewriter can be used in the normal way. The support used to hold the auxiliary ribbon device consists of vertical plates 33 and 34, the guide plate 35, which guides the paper, and a rod 36 in front of the guide plate 35 which is provided with a cutting edge for cutting off the written paper serves. . _%

The auxiliary ink ribbon is wound on the tape reels 51, 52, which on the pins 49, 50 rotatable sit, which in turn, through the End plates 33, 34 of the frame are supported. The arrangement is such that which one of the auxiliary ribbon spools can be firmly connected on its pivot while the other remains rotatable, so that when rotating the two pins in the same

; '. Direction of the stuck auxiliary ribbon spool winds the ribbon. Each spool pin has a head ιοί through which the corresponding coil is held in position,

s> 5 while the other end of the tenon is screw threaded to the nut

■■ '53 or 54 to be included. The spool pin each carry a ratchet wheel 55 or 56, which is driven by a pawl 57 or 58 of a drive device is rotated gradually. If the direction of movement of the ribbon is to be reversed, the tightened nut is loosened and the loose nut tightened, whereupon when the ratchet wheels turn, the one that is now firmly Reel worried about winding the auxiliary ribbon.

To guide the auxiliary ink ribbon 69 back and forth between the spools 51, 52, see above that several layers of tape are formed and several punctures with a single strike of the Type levers are achieved, punched • plates 70, 71 are provided, in additions to the plates 33, 34 to guide the ribbon. These plates 70, 71 can be made of metal. One plate. ■.;. '",' 70 has an isosceles right-angled

'*' ■■ ' ! Igen cutout 63 (Fig. 5), around the hypotenuse of the unwinding from the spool 51 auxiliary ribbon is turned to the right and is guided parallel to the main ribbon in front of the platen. The auxiliary ribbon is then fed to plate 71 which is punched out at y ^> 74, 76 and is drawn upwardly through slot 73 (Figs. 3 and 4). The auxiliary ribbon is then wound from above around the cathetus 74 and returned to the plate 70, rests against the underside of the latter in order to go up around the cathetus 75, whereupon it is then returned to the plate 71 between the two folds of tape thus formed. Here, the auxiliary ribbon is folded around the hypotenuse 76 and then finally wound onto the spool 52.

By moving the auxiliary ribbon back and forth 69 three layers of tape are created which, together with the main ink ribbon, are presented to the type lever to hit, resulting in several copies: are produced at the same time as the original. As a result of this arrangement of the ribbon the individual tape layers maintain the same distance from one another over the entire length, so that if the type lever is moved evenly, both at the beginning and at the end of the line are clear and legible Carbon copies are obtained.

: / ■ '■■ Patent claim:

■ ■ .. ■ · ■ - ■ Device for the simultaneous production of several carbon copies on typewriters by means of an auxiliary ribbon which is placed between the main ribbon; and the platen roller and, · ■ ··· forms several layers of tape by moving back and forth, and the spool rotation axes of which are parallel to the writing roller axis on the paper slide, characterized in that the guide plates (70, 71) for the auxiliary ink ribbon with triangular Aus -.- ', ■' ■ cut and the one guide plate (71) 'is equipped with a slot, where arise through straight and inclined guide edges, which allow the passage of the third tape layer between the first two tape layers.

For this purpose i sheet of drawings.