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4773776 Ink ribbon cartridge in a printer  
A ribbon cartridge may contain a single color ribbon or a multicolor ribbon, and is of wide U construction with a first pair of aligned (coaxial) pivot pins extending away from sides at locations...
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...
3944043 Shift mechanism in syllabic typewriters  
In typewriters comprising groups of type-bars, each group having a distinct printing point, each group being supported by a particular sector and certain sectors being movable independently from...
3724633 FEED SYSTEM FOR AN ADHESIVE RIBBON OR THE LIKE  
An adhesive erasing ribbon employed in a typewriter is reliably tracked and fed by a supply and takeup mechanism that positively maintains resilient tension on the ribbon. A spring device acting...
3648818 RIBBON FORK ACTUATING AND LOCKING DEVICE  
The carrier lever of the ribbon fork is mounted on a control shaft to which a control lever is secured. The carrier lever and control lever have slots through which a rod operated by the universal...
3603443 SELECTIVE RIBBON-HANDLING MECHANISM FOR CARBON AND FABRIC RIBBONS  
A typewriter ribbon control for switching the operational mode of a typewriter between carbon ribbon, fabric ribbon and stencil operation, having selector means for selectively coupling and...
3598220 RIBBON-LIFTING MECHANISM FOR A TYPEWRITER  
A ribbon-lifting mechanism for a typewriter comprising a toggle mechanism the common ends of whose links are pivotally mounted on a drive arm, the other end of one link is fulcrumed on a bistable...
3584722 CARBON RIBBON VIBRATING DEVICE FOR A TYPE BAR TYPEWRITER  
A cyclic means executes a cyclic operation incidental to each operation of a typing mechanism and early in each such cyclic operation causes a ribbon vibrator first to be subjected to a resilient...
3583315 HIGH-SPEED PRINTER HAVING CONTROLLED ACCELERATION RIBBON POSITIONING DIFFERENTIAL MECHANISM  
A high-speed printer is described which employs a character impression forming ribbon that traverses across a printing area and is selectably movable to permit character impression and subsequent...
3503483 RIBBON DISCRIMINATOR  
3456078 RETRACTION TYPE CARRIER MECHANISM  
3349888 Vibrator type ribbon handling mechanism  
3302766 Ribbon handling mechanism  
3272305 Ribbon lift mechanism  
3265180 Ribbon vibrators and operating mechanism therefor  
3237747 Cam operated ribbon vibrator and ribbon feed mechanism  
3171530 Ribbon feed mechanism  
982,774. Ink-ribbon mechanisms. INTERNATIONAL BUSINESS MACHINES CORPORATION. June 24, 1963 [June 26, 1962], No. 24955/63. Heading B6F. An inked ribbon feed mechanism for a synthetic plastic or...
3154185 Typewriter ribbon control arrangement  
972,580. Ink-ribbon mechanisms. OLYMPIA WERKE A.G. June 7, 1961 [June 18, 1960], No. 20538/61. Heading B6F. A typewriter (manual or electric) has selectively operable guides 1, 3 respectively for...
3104750 Title is not available  
2930471 Automatic position indicator  
2919784 Ribbon vibrator loading means  
2919008 Ribbon lift mechanism  
883,818. Ink-ribbon mechanism. INTERNATIONAL BUSINESS MACHINES CORPORATION. Dec. 18, 1958 [Dec. 27, 1957], No. 40894/58. Class 100(4) Vibrator mechanism. An ink ribbon 18 in a guide having side...
2861669 Power impulse control for type actions  
2757774 Impression regulating control for power driven typewriters  
2718955 Stencil-character-forming typewriters  
2694481 Method and means for selectively changing the effective printing surface of type  
2664989 Ribbon vibrating mechanism for typewriting machines  
2566959 Stencil typing machine  
2541191 Ribbon vibrating mechanism for typewriting and like machines  
2369315 Typewriting machine  
This invention relates to typewriting machines embodying power-operated typing means and, with regard to certain more specific features thereof, to means in such machines whereby the operating...
2346323 Typewriting machine  
This invention relates to devices, in typewriting machines and the like, for the selective control of the bi-chrome ribbon-vibrator mechanism, providing for ribbon color-band selection and for...
2345557 Apparatus for forming characters on stencils  
This invention relates to apparatus for forming printing characters on stencils and particularly stencils that are used in addressing machines. One of the objects of the present invention is the...
2178688 Typewriting machine  
This invention relates to typewriters and more especially to improvements in bichrome-ribbon shifting and vibrating mechanisms. A difficulty heretofore experienced with bichrome-ribbon mechanisms...
2163943 Typewriter machine  
This invention relates to bichrome or ribbonshift mechanism of typewriting machines, and is illustrated as mounted upon a standard Underwood machine. It has been the practice to provide a...
2155997 Typewriting machine  
This invention relates to typewriting machines and with respect to certain more specific features thereof to the devices employed therein for controlling the carriage in its letter feed...
2156001 Typewriting machine  
This invention relates to typewriting machines and with regard to certain more specific features thereof to a device for controlling the escapement and ribbon vibrator of a typewriter 6 by power...
2152848 Typewriting machine  
This invention relates-to typewriters and more especially to improvements in blchrome-ribbon shifting and vibrating mechanisms, and in finger-key touch-control. Among the features of the invention...
2091111 Typewriting machine  
This invention relates mainly to the reorganization of a typewriting machine. Heretofore, it has been the practice to manufacture a standard Underwood or other typewriting machine, by providing a...
2027508 Typewriting machine  
This invention relates to improvements in typewriting machines, and more particularly to improvements in inking ribbon actuating mechanism of such machines. The invention provides a ribbon...
2027509 Typewriting machine  
This invention relates to improvements in typewriting machines, and more particularly to improvements in inking ribbon actuating mechanism of such machines. S The invention provides a ribbon...
1955578 Typewriting machine  
1950761 Typewriting machine  
1886476 Typewriting machine  
1884514 Typewriter  
1864594 Typewriter  
1841107 Typewriting machine  
1839307 Stencil attachment for typewriting machines  
1838128 Typewriting machine  
1827293 Typewriting machine  
1820066 Typewriting machine  

Matches 1 - 50 out of 206 1 2 3 4 5 >