Typesetting apparatus
AssigneePatology Press, Ltd.
InventorFrank J. Galland
Life of this patent
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Abstract
A typesetter with a continuously rotating character drum that places lines of character images on thin transparent tape, equalizes line lengths for margin justification by stretching the tape, and places the lines on transparent film in a form suitable for direct imposition in making positive-working plates for lithographic printing. It provides multiple type fonts and fonts of different typographic size on-line simultaneously, proportional spacing by lands on the character drum that advance the tape the requisite amount for each character depending on its length, and margin justification controlled by optical mark reading.
Claims2
An apparatus suitable for placing character images on tape comprising a rotatable drum, a circle of distributed image-forming characters on the peripheral surface of said drum, said image-forming characters oriented with lengths circumferential to said drum and in mutual typographic alignment, lands raised above the datum peripheral surface of said drum, means for rotating said drum, and means for placing an image receiving medium in the form of tape in contact with said image-forming characters and said lands in order to place character images on said tape and to advance said tape by contact between said lands and said tape.
In a typesetting apparatus in which tape is the image receiving medium, means for proportionally spacing character images on said tape comprising a rotatable drum, a circle of distributed character elements on the periphery of said drum, a character element consisting of,
- an image-forming character oriented with its length circumferential to said drum and in typographic alignment with the image-forming characters in other said character elements of said circle, and,
- a land raised above the datum peripheral surface of said drum, said land of circumferential length equal to that of said image-forming character and an intervening space between an image of said image-forming character and an adjacent character image on an image receiving medium,
- means for rotating said drum, means for placing an image receiving medium in the form of tape in selective contact with said character elements in order to place character images on said tape and by contact between said lands and said tape to advance said tape in order for said tape to receive spaced images from image-forming characters of different lengths.
Dependencies are inferred from the claim text.