DE27774C - Inking unit on platen printing presses - Google Patents

Description

IMPERIAL

PATENT OFFICE.

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PATENT LETTERING

CLASS IB: Printing.

Patented in the German Empire on October 18, 1883.

In contrast to the method used to this day with the same method, described below, the innovations in ink trituration on platen printing presses, whereby the ink container was solid, the ink was inadequately triturated and the ductor only released ink once while the table was being returned, in the fact that a Lever is attached in such a way that the paint which the ductor takes from the paint container is rubbed twice on the table, that the paint container is moveable and easily adjustable, and that the ductor Q, in order to bring about a more even distribution of the paint on the table, moves sideways as the table rises and falls.

The attached drawing shows:

Fig. Ι the side view of an open platen printing press,

Fig. 2 is a side view of a platen printing press in printing;

Fig. 3 shows the position of the duct Q in its two end positions and

Fig. 4 is a perspective view of the counterweight driven and lifted Lever mechanism, the receiving and distributing rollers and the applicator rollers.

A is the frame on which the whole press is mounted, A ^x the footboard, B the gearwheel brought into contact with the footboard by crank B ¹ , which sets the main gearwheel C in rotating motion when the footboard A 'goes up and down.

^ is a double-armed lever, which has its fixed point of support on the main frame A at Z> ² . The lever arm D sits on the disk of the main gear C and rotates with it about pin D ³ . When turning C , the lever arm D simultaneously sets the counterweight E in motion through the pin E ^2, which is located in the center of the lever and fastened to the counterweight, and brings the bed E ¹ from the position shown in FIG. 1 to the position shown in FIG. ie the pin Z> ³ has arrived in the position shown in FIG. Lever F serves as a guide for counterweight E.

There are two different movements in this press:

First, the pin E ² protruding slightly from the counterweight butts against the lever arm Z; it rotates in Z ', and sets the movable in Z ² and Z ³ lever arms in operation, which then occupy the position shown in Fig. 2, when bed D is met with the crucible G ^1. During this movement, the lever arm Z ^{5 rotating at the fixed point Z 4} is raised at the same time.

Before the pin E touches the lever Z, this combination of levers receives a previous movement through the table K as soon as it has come into the position shown in dotted lines in FIG.

As the table K continues to rise, the roller Q provided with paint comes to rest on the table and rubs it onto the table up to the upper end of the table, FIG. 2.

The driving rollers O and P, which, like Q , are mounted in the lever arm Z ⁵ , serve to evenly rub the paint removed from the paint container R by roller Q and dispensed onto the table K. These rollers can easily be removed, if necessary or desirable, by simply lifting them out of slots O ¹ and P ¹ .

Likewise, these distributing rollers O and P could be mounted in two laterally attached jaws H ^{provided with slots Z / 1} and Z / ² and would then distribute the color simply by sliding in these slots. The roller Q takes its color from the container R while the press is under pressure and, when the press is opened, travels a second time, in the opposite direction over the table K. Roller Q instead. As shown in Fig. 3, the one pin of the roller is provided with a screw thread and rotates in the bearing turned as a nut in the lever arm Z ⁵ , whereby a transverse movement of the roller Q takes place when the table goes up and down. So that the lever arm Z ⁵ does not go deeper, as roughly in the position shown in Fig. Ι, a pin Z ^{6 is} attached to the jaws, against which arm Z ⁵ lies and rests on it.

The second special movement that is caused when the bed Έ ¹ and table K move forwards, up and down is that of the application or blackening rollers M and N. The latter slide in their slots M ¹ and M in the jaws of the main frame A JV ¹ up and down. These are provided with color and distribute the same to the types or other printed matter resting in bed E ^1.

When the bed E ¹ and crucible G come together, which occurs through the above-described movement of the lever arm D and the descending quarter-circle movement of the crucible G, which is loosely connected to the shaft C by rod J and takes place in the hinge T in the direction of the arrow (see Fig. its location in Fig ι. and 2), pushes the rolls e ¹ M and N slowly by the same hand in their color on the bed located in the objects to the top.

Arrived in a certain position, the rollers M and N come into contact with the table K , remove the uniformly rubbed paint mass from it, and when you go back, ie when you open the whole press, go over the bed E ¹ and for the first time after printing has been carried out when the bed and crucible come back together a second time.

»S is a threaded rod at the ends that connects the two jaws of the Main frame holds together by means of attached nuts.

Claims (1)

Patent claim: The arrangement of the driving rollers OP next to the duct Q on the arm Z ⁵ , the movement of which is derived from the pin E ² by the connecting links ^{ZZ'Z 2} Z ³ Z ^4. For this purpose I sheet drawings.