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Class 400/308 - Carriage backspace mechanism


Subclass of Class 400 - Typewriting machines
Definition: Subject matter wherein the carriage* is caused to
No. of patents: 12
Last issue date: 06/21/1994


NumberTitleIssue Date
5322376Serial printing apparatus including an error correcting capability and having a memory
A recording apparatus has a memory for storing information entered from a key input device, whereby the stored information can be used to rapidly and precisely position erasing means at a previously recorded indicium for erasure thereof. The apparatus may...
06/21/1994
5143462Ergonomically effective backspacing method
A method for backspacing and/or backspacing/erasing on a computer, electronic, or other keyboard comprises activation of the backspacing function via thumb movement. Such activation can be accomplished more easily, more efficiently, and more ergonomically...
09/01/1992
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
4286889Error correcting typewriter with electronically controlled backspacing to facilitate perfect overstrike of errors
An error correcting typewriter wherein a backspace correction key is operative to read an incorrect character from memory, to in turn reversely move a stepper motor controlled carriage twice the width of a character in error and then forwardly the width o...
09/01/1981
4031994Double tab rack for a typewriter
A tab rack bar and tab stops are disclosed which provide for the ability to set a first set of tab stops on one side of the tab rack by displacing the tab stops into the path of the tabulator mechanism and then by rotating the tab rack set a second set of...
06/28/1977
3991874Automatic function mechanism for typewriters
A method and mechanism for automatically performing a typewriter function such as backspacing a carriage where the backspace mechanism is actuated upon removal of an insertable and removable ribbon cartridge. Particularly adaptable to correcting typing er...
11/16/1976
3987885Automatic single and repeat function mechanism for typewriters
A method and mechanism for automatic actuation of single and repeat typewriter functions such as backspacing upon the insertion and removal of a ribbon cartridge. The ribbon cartridge, carrying a bidirectional camming abutment having a pair of converging ...
10/26/1976
3985219Ribbon cartridge for automatic typewriter function
A typewriter ribbon cartridge carrying at least one abutment thereon for engaging one or more typewriter functions and responsive means or mechanism to thereby actuate the typewriter function mechanism when the ribbon cartridge is inserted into the typewr...
10/12/1976
3978965Ribbon cartridge for automatic typewriter function
An insertable and removable typewriter cartridge having an abutment thereon for automatically engaging a function coupled responsive means of a typewriter to actuate the typewriter function mechanism when the cartridge is removed from the typewriter....
09/07/1976
3977510Automatic function mechanism for typewriters
A method and mechanism for automatically performing typewriter functions such as backspacing and disabling the escapement mechanism of a typewriter. A ribbon cartridge carrying actuating abutments is inserted into the typewriter whereupon the abutments en...
08/31/1976
3976184Ribbon cartridge for dual automatic typewriter function
A typewriter ribbon cartridge having a camming abutment thereon for engaging one or more typewriter function responsive means to thereby actuate the typewriter function mechanism when the ribbon cartridge is inserted into the typewriter and thereafter to ...
08/24/1976
3976182Automatic function mechanism for typewriters
A method and mechanism for automatically performing typewriter functions such as backspacing a carriage. The backspace mechanism is actuated by the insertion and removal of a ribbon cartridge that is placed on and guided by a ribbon cartridge platform and...
08/24/1976
 
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