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US 4,172,641 AGranted
Phototypesetter
OwnerHelmut M. Zoike, William T. Heyerinventors
Life of this patent
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Abstract
A phototypesetter is provided for typing various texts in a wide range of type sizes from a single font or from a multiple font. A light sensitive, heat developing paper is used. In one embodiment of the machine, the paper is developed one line at a time so that the compositor can type the next line while the previous line is being developed. In accordance with another embodiment of the machine, a memory and display are provided wherein the compositor can type an entire page, edit it, and then print and develop the entire page by keying in the proper commands.
Claims11
A phototypesetter comprising in combination:
- a. a rotating circular font, said font having a plurality of characters on the periphery thereof;
- b. indexing means whereby said font can be stopped at a desired character;
- c. projection means including a light source and a movable lens whereby said font can be projected onto a focal plane;
- d. a first carriage carrying said font, said indexing means and said projection means, said first carriage moving said structure from side to side across said focal plane;
- e. a second carriage supporting said first carriage, said second carriage moving said first carriage at right angles to said focal plane whereby the size of the image projected on said focal plane can be varied;
- f. means for maintaining a heat developing paper at said focal plane and means for advancing and developing said heat sensitive paper.
3 more elements
Dependencies are inferred from the claim text.