Did You Know...
...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."
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| Number | Title | Issue Date |
| 4611938 | Mechanism for raising and feeding ink ribbons in typewriters and similar machines The invention concerns a mechanism for raising and feeding different types of ink ribbons in typewriters and similar machines. With a simple design and using only one motor under programmed control, the mechanism is capable of utilizing ink ribbons econom... | 09/16/1986 |
| 4460287 | Ribbon lift mechanism for typewriters and the like machines An improved ribbon lift mechanism for alternately raising a ribbon from a lowered position to first and second elevations relative to a print line. A ribbon lift lever is raised by a cam ring having alternating high and low lift cams separated by valleys ... | 07/17/1984 |
| 4402622 | Ink-ribbon lifting apparatus Ribbon lifting apparatus for a printing device having a print wheel and a ribbon cartridge. The lifting apparatus includes a pair of ribbon guides for supporting an exposed portion of a ribbon extending from an outlet opening of the ribbon cartridge to an... | 09/06/1983 |
| 4347007 | Typewriter cartridge and feed mechanism therefor Disclosed is a cartridge and a cartridge assembly for a typewriter, the assembly comprising a pair of case members, each case having a separate chamber and including means for releasably connecting the two cases in superimposed overlapping relation. First... | 08/31/1982 |
| 4302118 | Typewriter cartridge and feed mechanism therefor Disclosed is a cartridge and a cartridge assembly for a typewriter, the assembly comprising a pair of case members, each case member having a separate chamber and including means for releasably connecting the two case members in superimposed overlapping r... | 11/24/1981 |
| 4297043 | Impact printer inclined ribbon scanner A high-speed printer, such as a daisy wheel printer, utilizes a carriage which transports a printing font, such as a daisy wheel, laterally along a print line adjacent a paper-supporting platen. An ink ribbon is supported on the machine frame rather than ... | 10/27/1981 |
| 4022313 | Ribbon lifting mechanism In a printer wherein a ribbon is driven against a platen by a print element there is provided a ribbon lifting mechanism having a one revolution motor which drives, via a n-to-1 reduction gear, a ribbon guide to pivot to different positions whereby differ... | 05/10/1977 |
