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Class 400/307.2 - By cooperating toothed members (e.g., gear, segment, rack, etc.)


Subclass of Class 400 - Typewriting machines
Definition: Subject matter wherein the irregular increments of carriage* movement
No. of patents: 16
Last issue date: 08/06/1991


NumberTitleIssue Date
5037223Serial printing apparatus with controllable pitch
An electronic apparatus for drawing up documents. The apparatus includes an indicator for indicating registration of information, a keyboard for entering indicia and print pitch information, a memory including a first area for storing keyboard information...
08/06/1991
4818125Electronic typewriter with word correction function including pitch changing means
Disclosed is an electronic typewriter with a word correction function substantially consisting of a print data memory, a correction word memory, correction determination means, selection means and correction control means. If a correction word is too long...
04/04/1989
4752786Single motor multi-function drive control recorder
A thermal printer using a single pulse motor is disclosed. This thermal printer comprises: a single pulse motor; a moving member which is moved in accordance with the drive of the pulse motor; a head raising and lowering mechanism and a sheet feed mechani...
06/21/1988
4624591Impact printer with type font elements having mid-line pitch change capability
An impact printing system which is particularly suitable for word processing is provided with the capability of effecting mid-line pitch changes. The impact printer system which is particularly compatible with interactive display terminals in word process...
11/25/1986
4615631Printing apparatus with means for indicating the selected printing pitch and paper advancing pitch
A printing apparatus includes a power supply for supplying power thereto and a battery supply for supplying back-up battery power. A printing mechanism effects printing on a printing paper in accordance with one of a plurality of printing pitches, and a p...
10/07/1986
4565461Pitch-changeable, cam-actuated paper feed for serial printer
The printer includes a print head moveable in a lateral direction perpendicular to the feeding direction of a sheet of recording paper. The print head is supported on a carriage which is reciprocably driven. Different paper feed pitches are selectable dep...
01/21/1986
4552474Backspace device in typewriter
A backspace device in a typewriter comprising: an interposer operable by the operation of a key lever; a cycle bail operable by the interposer; a cycle clutch for intermittently transmitting a driving force from a driving source to a main shaft so that th...
11/12/1985
4551033Serial electric printer using single unidirectional motor
A serial printer having a carriage adapted to be shifted transversely of a paper and a type cylinder carried by the carriage in such a manner as to be able to be shifted up and down and to be rotated, so that the printing is effected by pressing the desir...
11/05/1985
4480931Electronic typewriter
An electronic typewriter which provides for significant simplification of machine operations. The typewriter includes automatic error correcting function associated with electronic controls and a memory. A series of text data which have been deleted durin...
11/06/1984
4437400Stamping device
A stamping device includes a baseplate, a slide mounted on the baseplate, a carriage movably mounted on the slide, and a punch holder coupled to the carriage for movement therewith. The carriage is movable in an adjustable, predetermined indexical manner ...
03/20/1984
4322173Half-spacing feed mechanism for marking machine
A marking machine for marking metal nameplates, tags or the like. The marking machine employs a work table supported on a carriage which is moveable into contact with a marking wheel to perform a printing operation. Improved advancing means are provided f...
03/30/1982
4285605Escapement mechanism and backspace mechanism for a moving paper carriage typewriter having dual pitch capability
A mechanism which will function to allow the escapement of the carriage of a typewriter in one of two predetermined escapement pitches and be capable of backspace operation from a single backspace input for both pitches regardless of which escapement pitc...
08/25/1981
4265555Dual pitch carriage drive mechanism
Two carriage drive systems are arranged to be selectively coupled to a uniform stepping mechanism responsive to spacing signals whereby a carriage can be indexed across a writing line at 10 or 12 pitch increments....
05/05/1981
4245918Erase through tab
An electronic typewriter which has the capability of erasing characters automatically and which has the further improved capability of being able to back through unused space on the line, which results after a tabulation command, thereby allowing the repo...
01/20/1981
4067430Typewriter carriage movement mechanism
There is disclosed a typewriter carriage control mechanism which is used with a single element print head which is constructed and arranged for transverse movement across the typewriter in which a ratchet wheel is connected to the regular spring for movin...
01/10/1978
3985220Tabulator apparatus for a typewriter carriage moving in steps of different length
A tabulator apparatus for a typewriter whose carriage can be manually set to make carriage steps of different length corresponding to the width of types of different exchangeable type carriers. The apparatus includes a manually shiftable transmission conn...
10/12/1976
 
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