DE40520C - Innovation in the folder and sheet guiding device patented under No. 37640 - Google Patents

Description

IMPERIAL

PATENT OFFICE.

PATENT LETTERING

CLASS IS: Printing.

Addition - Patent to No. 37640 of April 13, 1886.

Patented in the German Empire on November 21, 1886.

Longest duration: April 12, 1901.

The purpose of the improvements to the subject matter of the main patent explained below is:

1. Achieving a precise cross fold,

2. more reliable paper guidance;

3. Significant simplification of the whole arrangement;

4. Greater productive capacity of the apparatus with less operating power.

That in the description of the patent no. 37640 protected device Princip remains completely the same.

In the accompanying drawings, Fig. 1 shows the front view of the assembly in position for one-sided continuation of the paper,

Fig. 2 represents a double-sided continuation of the paper, while

Fig. 3 shows the side view.

In order to initially save the rather collapsed ribbon line via the pyramid folding apparatus S, as well as from the folding rollers s to the transverse folding rollers dd _x , the cross-section of the endless paper is only made after it has passed the pyramid folding apparatus, as well as the transverse folding rollers s, the arrester m and has passed the guide _{rollers S 1} , so that it slides over the pyramid folder in a known manner, not in the form of individual sheets, but as endless paper. In principle, the tapes are superfluous here.

If the strip of endless paper is now to be continued on only one side in the folded or merged state, the rollers ss remain in the pushed together position (as explained in the main patent specification), FIG. 1.

When endless paper is passed through, the arrester m can be simplified to the extent that it consists of one piece and is no longer displaceable, but only set up to oscillate; in this first case it is only laid on its side and disappears in the grooves of one roller s, Fig. 1. For the purpose of distributing (double-sided discharge) the arrester m, as will be shown in the description of Fig. 2, turned only so that its upper edge lies against the lower edge of the pyramid folder S. The arrester m therefore no longer needs to be pushed into the body S , since the line of endless paper, instead of individual cut sheets, eliminates the risk of the sheets of paper getting stuck and placed on the arrester.

In order to guide the folded strip of endless paper a little further in the vertical direction and not too abruptly in another direction of movement, which experience has shown that the paper can easily be torn, the guide rollers S ₁ are arranged under the folding rollers s.

Below these guide _{rollers S 1} are the four perforation cylinders AA ₁ BB ₁ , of which the two cutting cylinders BB ₁ are located on the outside and the groove cylinders AA ₁ are mounted on the inside. This arrangement of four perforated cylinders forms the first major factor in this improvement over the known ones

Claims (2)

Arrangements with only two perforated cylinders mounted below a pyramid fold, by the arrangement of these four Perforircylinder that of the main patent The principle on which the construction is based and the one explained in detail below 'The special basic idea of the improved construction is connected. The longitudinally folded or merged strip of endless paper is now carried on by the one guide roller S ₁ in such a way that it passes through between the grooving and cutting cylinders A and B. Here the folded endless strip is now perforated in the spaces corresponding to the length of the sheet, and the perforating knives work in such a way that the paper is perforated somewhat less than was previously the case. In this - perforated state it now runs into the faster running but not closing belt system vyr \] pd and, by only being stretched by the same, but without being torn off, always reaches the roller as an endless paper . It is so justirr that it is exactly half an arc length away from the center line of the transverse folding rollers dd _1. At the moment when the leading edge of the endless strip T has reached the roller, i.e. the center line of the perforated sheet length is at the center line of the transverse folding roller η dd _i , the folding knife ο of the rotating folder V acts on the endless strip of paper, and by doing it forms a fold, it guides the fold edge between the transverse fold rollers dd _r As has been established experimentally, the perforated sheet length is not yet torn from the endless strip during this folding operation, but is still on its reverse side during the action which the knife is exerting retained at the perforated line a-ß . The effective tearing off of the perforated sheet length does not take place until a moment later, when the transverse folding rollers d J _1, driven from wheel E by intermediate gear k at an increased peripheral speed, have gripped the folded edge of the perforated sheet length. In that they separate the sheet from the endless strip of paper, namely at the perforated line a- b, FIGS. 1 and 3, the cross-folding rollers also act at the same time as stripping rollers. This device, namely that the sheet to be folded (whether it has already been folded lengthways, brought together, or whether it is open) is still perforated with the endless paper at the moment of the folding operation, and is thus held on its reverse side, and that the cross-folding rollers dd _x at the same time serve as stripping rollers, this is the special principle on which this improvement is based and which is added to the general principle that governs the construction explained in the main patent specification. The new effects achieved through the additional improvements explained are coming in exactly the same way when the device mentioned in the main patents is used is used to derive unfolded half sheets double-sided. Just as it is stated in the main patent specification for the purpose of diverting individual half sheets, "here too, for the purpose of diverting two open, unfolded, endless paper strips, the folding rollers s are first moved from one another by the bearing blocks c, which are in the frame g slide, the wheel means and in the manner described are pushed from one another, Fig. 2. As already indicated above, the arrester m is turned around a little so that it lies against the lower edge of the pyramid folding apparatus S (see FIG. 2). The sheet cutter χ must be operated in the manner explained in the main patent specification. The endless paper passed over the pyramid folder is now divided by the sheet cutter χ into two equal, endless halves, which are passed on both sides of the diverter m, one half to the perforation cylinders AB, the other half to which A ₁ B _{1 are} directed. There the open endless strips are simultaneously perforated and continued in the same way as was described above with regard to the folded endless strips. From there, the two perforated half endless paper strips arrive at the same moment for simultaneous transverse folding by the folding knives ο and O _{1 of} the apparatus V, further between the transverse folding rollers d ifj and ßj e ₂ , in the same way as in the main patent for the sake of it unfolded sheet finds explanation. Patenτ claim: At the under No. 37640 patented folding and sheet guiding devices, the arrangement of a tongue switch. m in place of the curved manifold IUm ¹ Ut ² , classification. of guide rollers S ₁ S ₁ and perforating rollers AB A ₁ B ₁ , of which the two separate paper strips are each guided between the band systems νy r \ ρ d to the associated folding device Vdd _l or Fe ₁ e ₂ , here folded and at the same time in arch to be separated. For this purpose ι sheet of drawings.