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noun

Tympan n.

A drum. (Obs.)

(Arch.) A panel; a tympanum.

(Print.) A frame covered with parchment or cloth, on which the blank sheets are put, in order to be laid on the form to be impressed.

Tympan sheet (Print.), a sheet of paper of the same size as that to be printed, pasted on the tympan, and serving as a guide in laying the sheets evenly for printing.

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Etymology of 'Tympan'

Collaborative International Dictionary of English 0.48

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"Tympan" Quotes from Famous Books

... these errors with pen and ink is usually considered a paying investment. The tympan of the duplicating machine is sometimes made uneven so that the impression of a typewriter is still further carried out. Some duplicating machines advertise that their type print "loose" for this very ...

— Business Correspondence • Anonymous

... moisture; then a roller charged with thick ink is put on, and then another with thin is applied. It takes fully five minutes to sponge and roll up a plate, the rolling being done gently and firmly. A sheet of paper is now laid upon the plate, the tympan is lowered, and the scraper adjusted with due pressure; a revolution of the wheel completes the printing, the well-known scraping action of the lithographic press being used in ...

— Scientific American Supplement, No. 362, December 9, 1882 • Various

... Napoleon. Il y avait des whigs jusque dans la famille royale, et ils etaient pleins d'ardeur. Au reste la cause etait belle: c'etait celle de la liberte contre l'autorite. "Nos adversaires," s'ecriait Lord John Russell, "nous cassent le tympan avec le cri: 'Le roi et l'Eglise.' Savez-vous ce qu'ils entendent par la? C'est une Eglise sans evangile et un roi qui se met au-dessus de la loi." Oxford—clerical et litteraire—etait tory; Cambridge, scientifique, qui avait eu Newton et attendait ...

— Collections and Recollections • George William Erskine Russell

... afterwards became his wife. In 1890 he returned to America, becoming instructor in the Art School of Pratt Institute, Brooklyn. He has done a number of works for the Congressional Library, the Vanderbilt bronze doors of the St. Bartholomew Church of New York, the tympan of the Madonna and Child in the same church, a statue of William Ellery Channing and many others. His beautiful busts of women are said to be unsurpassed even ...

— Sculpture of the Exposition Palaces and Courts • Juliet James

... experiment. A few hours after one side of a sheet of paper has been printed upon, the ink is sufficiently dry to allow it to receive the impression upon the other; and, as considerable pressure is made use of, the tympan on which the side first printed is laid, is guarded from soiling it by a sheet of paper called the set-off sheet. This paper receives, in succession, every sheet of the work to be printed, acquiring from them more or less of the ink, ...

— On the Economy of Machinery and Manufactures • Charles Babbage