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US3625335A Expired / Lapsed US ⏱️ 0.0 years remaining

Device for tabulating printed characters to the right for teleprinters and similar data terminal printout apparatus

Assignee: C Olivetti Ing & C Spa
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Filing: 1969-04-22
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Granted: 1971-12-07
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Expires: 1989-04-22
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Abstract

Abstract In printers, such as used in teleprinters and data terminal equipment, having a carriage for providing relative motion between a printing paper support and a type carrier, a mechanism for backspacing the carriage responsive to a backspace code and an accumulator for storing code combinations corresponding to characters set on a keyboard; a mechanism for right justifying a group of characters to be printed comprising locking means responsive to setting of a first character in the group to prevent readout from said accumulator of the code combinations of entered characters, means to generate said backspace code independently of the accumulator upon setting of each character of the group and control means for disengaging the locking means and effecting readout of said accumulator; whereby said carriage may be spaced to a tabulated position, the characters of said group may be entered without printing while the carriage backspaces for each entry, and then the characters may be automatically read out of said accumulator printing right justified to the tabulated position.

Inventors

  • 👤 Giuseppe Ricciardi
  • 👤 Luciano Rattin

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 00:19
CPC Classifications
H; H04; H04L; H04L13/00; H04L13/18; H04L13/186

Claims Analysis

Total Claims: 9
Claim 1
Independent Claim 195 words
A device for tabulating a group of characters to the right for use in teleprinters and data terminal apparatus in general, of the class comprising a support for the paper, and a support for the type carriers, one of these supports being mounted on a carriage, a keyboard for setting code combinations, a mechanism for backspacing the carriage by one step under the control of a predetermined code combination, an accumulator for accumulating the code combination set on the keyboard, and a mechanism for reading the set code combination on said accumulator and transmitting said set code combinations at a predetermined speed, wherein the improvement comprises locking means responsive to the setting of the first character of the group of characters to prevent said mechanism for reading the accumulator and from transmitting the set code combinations of the group of characters, means operable on the setting of any character of the group of characters for generating the predetermined code combination without entry in the accumulator, and control means for rendering the locking means inoperative, whereby said mechanism for reading is enabled for reading the set code combinations of said group of characters on the accumulator.
Claim 2
Independent Claim 195 words
A device for tabulating a group of characters to the right for use in teleprinters and data terminal apparatus in general, of the class comprising a support for the paper, and a support for the type carriers, one of these supports being mounted on a carriage, a keyboard for setting code combinations, a mechanism for backspacing the carriage by one step under the control of a predetermined code combination, an accumulator for accumulating the code combination set on the keyboard, and a mechanism for reading the set code combination on said accumulator and transmitting said set code combinations at a predetermined speed, wherein the improvement comprises locking means responsive to the setting of the first character of the group of characters to prevent said mechanism for reading the accumulator and from transmitting the set code combinations of the group of characters, means operable on the setting of any character of the group of characters for generating the predetermined code combination without entry in the accumulator, and control means for rendering the locking means inoperative, whereby said mechanism for reading is enabled for reading the set code combinations of said group of characters on the accumulator.
Claim 3
Dependent Claim 113 words
A device as in claim 1, further comprising a shift bar settable by each key of the keyboard associated with a character of said group of characters, said locking means comprising a locking element normally in an inoperative position, said shift bar when so set shifting said locking element from said inoperative position to a second position in which said mechanism for reading is arrested on the setting of the first character of the group of characters, said shift bar when so set rendering said operable means operative, and catch means for retaining said locking element in the inoperative position, said catch means being releasable by the manual actuation of said control means.
Claim 4
Dependent Claim 65 words
A device according to claim 2 wherein said operable means comprises a series of sensing elements operable for sensing a Fixed bar coded in accordance with the predetermined code combination and for selectively positioning a series of transmission bars, and further comprising a drive train actuated when said locking element is in said second position for operating said sensing elements to sense said fixed bar.
Claim 5
Dependent Claim 96 words
A device as in claim 2 wherein said mechanism for reading is actuated cyclically for reading the accumulator to position a series of transfer members according to the set code combination read, and mechanism for reading then commanding a cycle of transfer of the set code combination read to the transmission bars, and comprises a correction member which can be actuated manually to act on said catch means to cause the reading of all set code combinations entered in said accumulator, the correction member when operated preventing said mechanism for reading from commanding the transfer cycle.
Claim 6
Dependent Claim 49 words
A device as in claim 1 further comprising a two-position bar operable when said carriage is brought to a tabulating point to the right of the group of characters to lock a first group of keys of the keyboard, said two-position bar normally locking a second group of keys.
Claim 7
Dependent Claim 39 words
A device as in claim 1 wherein said operable means comprises a series of sensing elements operable for sensing a fixed bar coded in accordance with the predetermined code combination and for positioning a series of transmission bars selectively.
Claim 8
Dependent Claim 170 words
In printing apparatus comprising a carriage for providing relative motion between a paper support and a type carrier, a mechanism for backspacing the carriage by one step under the control of a backspace code, a keyboard, and an accumulator for storing the code combinations set on said keyboard; a mechanism for right justifying a group of characters to be printed comprising: a. locking means responsive to setting of a first character in a group to prevent reading from said accumulator of the code combinations of entered characters; b. means to generate said back space code independently of said accumulator upon setting of any character of said group; and c. control means for disengaging said locking means to effect reading of said accumulator; whereby said carriage may be spaced to a tabulated position, the characters of said group may be entered without printing with the carriage backspacing for each entered character and then the characters may be read out of said accumulator and automatically printed right justified to the tabulated position.
Claim 9
Dependent Claim 170 words
In printing apparatus comprising a carriage for providing relative motion between a paper support and a type carrier, a mechanism for backspacing the carriage by one step under the control of a backspace code, a keyboard, and an accumulator for storing the code combinations set on said keyboard; a mechanism for right justifying a group of characters to be printed comprising: a. locking means responsive to setting of a first character in a group to prevent reading from said accumulator of the code combinations of entered characters; b. means to generate said back space code independently of said accumulator upon setting of any character of said group; and c. control means for disengaging said locking means to effect reading of said accumulator; whereby said carriage may be spaced to a tabulated position, the characters of said group may be entered without printing with the carriage backspacing for each entered character and then the characters may be read out of said accumulator and automatically printed right justified to the tabulated position.

References Cited (Backward Citations)

US3011701A Cited
US1283586A Cited
US1724478A Cited
US2462834A Cited
US3306417A Cited
US3465100A Cited
US3450835A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1974-12-06 1975-06-07 1975-12-07 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-12-06 1979-06-07 1979-12-07 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-12-06 1983-06-07 1983-12-07 $7700.00 Window Closed / Lapsed

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