Liberty crucible press
The Liberty press is a foot or motor-operated platen press . The printing platen (T) and the foundation (F) with the printing forme swing around a common axis in these machines. At the moment of the paper system they are unfolded like the halves of an open book, the pressure point is in a vertical position.
Because of its peculiar design and its origin, it was also called a hinge press or American press - American for short. In America she was nicknamed "Noiseless Jobber" because of her smoothness.
The possibility of use was limited to work that did not place great demands on printing strength and coloring. It found its greatest distribution in America; However, it can also be found in European sales brochures until around 1910.
The inventor of the Liberty press was the German Friedrich Otto Degener (* 1813 in Hanover, † 1873 in Brooklyn / New York). He emigrated to America around 1840 and worked on his invention in the 1850s. On November 17, 1857 he received his patent on it.
See also
literature
- Jakob Bass (ed.): The book printer. Handbook for printers and allied trades. Plesken, Stuttgart 1930.
- Friedrich Bauer: Handbook for book printers . Klimsch & Co , Frankfurt am Main 1942.
- Maxentius Niel: Drucktechnisches Taschenlexikon . Steyrermühl, Vienna / Kälker & Hesse, Leipzig 1929.
- Georges Zürcher: General professional knowledge for book printers . Technical and textbook for book printers, 8th edition, VGF - Verlag Graphische Fachbücher, Bern 1967 (first edition: 1939 self-published ).