Hoechst Aktiengesellschaft

Sylvia Britzke

Hans Heist

Dieter Toepfer

Eberhard Schoernig

A device for treating printing plates with a fluid. A flooded trough has a bottom, two lateral boundary walls and containment blades, one blade located on each of the inlet and outlet sides of the trough. The bottom carries a plate guide surrounded by a rectangular overflow channel integral with the bottom. Feed branches are releasably inserted into holder pipes leading from the overflow channel to a feed line having a T-branch. The feed line is connected via a pump to a tank, the latter used as a stock vessel for the fluid. The holder pipes are taken through an inclined bottom of a collecting trough which surrounds the flooded trough, and are rigidly joined to the inclined bottom. Baffles are provided in the overflow channel above the inlet openings of the feed branches. The fluid flows into the flooded trough through the feed line, and flows out by overflow into the collecting trough, then to the stock vessel, and thereafter is recirculated by the pump.

Device for treating printing plates with a fluid

A device 1 for engaging and disengaging rollers rollers 14, 15, which are arranged horizontally in pairs, with the shaft ends 18 of the upper rollers being provided with ball bearings 6 which can be lifted and lowered and are guided in bracket-type guides 7. The webs 3, 4 of U-shaped slide members 17 are guided in friction bearings 2, and said slide members can be shifted to and fro by a shifting path X. The webs 3, 4 are provided with recesses 9, 10, each of which possesses a bevelled edge 5a, 5b. The ball bearings 6 roll along the bevelled edges such that in the engaged position the ball bearings are pressed down in the guides 7 by the upper edges 5b, and in the disengaged position they are raised by the lower edges 5a. The recesses 9 provided in the lower web are staggered with respect to the recesses 10 provided in the upper web 4 by the shifting path X. Each slide member 17 is equipped with a gear rack 11 engaged by a gear wheel segment 12, which by use of a swivelling lever 16 can be swivelled about a shaft 13 supported in the side plate 20. The lower rollers 14 are stationarily supported in the side plates 20.

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Wiesbaden, Germany

Sylvia Britzke