DE77450C - Device for guiding the paper tape in telegraph apparatus set up for double printing - Google Patents

Description

IMPERIAL

PATENT OFFICE.

PATENT LETTERING

CLASS 21: Electrical apparatus.

Patented in the German Empire from i. September 1893.

The present invention relates to a usable in writing and printing telegraph any type of paper tape guide designed for double printing or simultaneous printing of a telegram and its copy and is characterized in, that a via guide rollers running, perforirter paper strip, which by virtue of its width character imprints in ■ two rows capable of receiving, is separated into two rows corresponding to those rows during the advancement process, one of which is wound up on a paper wheel equipped with a switching drive for storage, the other is conveyed outwards as a strip of despatches that can be tapped off.

Because the paper feed emanating from the take-up wheel is only applied to the one to be wound Strip can take effect immediately, this forms the copy containing the dispatch Strip, so to speak, the means of transport for the only separated on the guideway, free-ending other strips.

The attached drawing shows:

Fig. Ι the front view of the device in connection with some parts of a for Printing by means of a telegraph device serving as a telegraph, which incidentally does not Forms part of the invention.

Fig. 2 illustrates the character wheel in section, behind which in comparison For two types to be printed a two-part counter-support roller is arranged, in which the knife used to cut the strip is provided.

"St Fig. 3 is a schematic of the apparatus with dotted Grundrifs an indicated type wheel, and stamp.

Fig. 4 shows in a top view the knife on the two-part abutment roller, of which the upper part is assumed to have been cut away along the line xx, Fig. 2.

The paper strip u v of twice the width and with a longitudinal perforation unwinds from the paper wheel A, as can be seen from FIGS. First he is separated by the lead respectively. Strain serving roller pair η n \ then at the Widerlagswalze ¹ mm over and furthermore by that roller pair η η ¹ corresponding roller pair 0 o. ¹ On the way to this point the strip u ν is now separated by means of a knife α and one strip u winds on the paper wheel B connected to the feed holding mechanism, while the other strip ν presents itself as a strip of despatches that can be tapped off.

According to the drawing, the knife α is located between the upper and lower rollers "η ¹ ?", Which are parts of the support roller and on which the impression is made. Any double printing device known from telegraph apparatus or the device of a so-called double writer can be used as the means of producing this imprint on the paper strip running past.

A ^{type printing device is} partially communicated to illustrate the mode of operation.

in which the main organ is a type wheel D driven by a clockwork, the resilient type carrier b, Fig. 2, each with two identical types cc ^{1 are} equipped.

A stamp E (electromagnetically moved) penetrating through the circumferential holes of the wheel inhibits the type wheel in certain settings and causes the types that were previously passed by an ink roller to be imprinted on the paper strip uv, which is supported on the counter roller mm ^l . In this way these two parts of the strip always have the same imprints, so that the despatch printed on one is a copy of the other. The same purpose can be achieved with the help of other type printing devices and writing telegraphs, in that only the type giving the impression or the writing roll, the pen, etc., has to be doubled.

The knife α (Fig. 4) is attached to the stationary pin of the roller mm ^l so that it retains its position while the roller rollers m ^{can rotate 1} m above and below it and the separation of the same when the paper strip is pulled forward at the perforated point.

It is essential with the device that the drive that mediates the paper feed does not on feed rollers, as usual, but on the paper wheel that winds up the copy of the dispatch is transmitted.

According to the illustration in FIG. 1, the drive device consists of a pawl k connected to a push rod i , which is in engagement with a toothing k ¹ on the paper wheel B and in connection with the type printer mechanism (when the stamp E decreases) to step-by-step incrementation Type width is initiated. ,

By virtue of the new arrangement, the strip u containing the copy of the dispatch is to a certain extent the means of transport (which also ^{drives the guide rollers 0 o 1} ) for the strip v, which is only separated on the guide path.

It should be noted that the knife i a can of course also be arranged in a different position than at the counter roller mm ¹ , although this position incidentally has the advantage that it keeps the printed line straight.

The pulling out of the paper strip can be set up continuously instead of intermittently, as is usually required for the telegraph.

Claims (1)

Patent claim: Device for guiding the paper tape in telegraph apparatus set up for double prints, in which the longitudinally perforated paper tape (uv) of twice the width is guided past the printing point on guide rollers, characterized in that at or beyond the printing point there is a knife (a) for separating the paper tape into two Strip is arranged, one (u) of which is wound onto the paper wheel (B), which is moved by a switching drive, and thereby conveys the advantage of the paper tape, while at the same time the other paper strip (ν) is advanced as a strip of dispatch that can be tapped off. 1 sheet of drawings.