Type-carrier disk with flexible tongues
US4236838A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 15, 1977 |
| Grant date | Dec 2, 1980 |
| Priority date | — |
| Expiry date | Apr 15, 1997 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J1/30
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A type-carrier disk with flexible tongues for a printing device includes a central part for fixing onto a selection shaft and a peripheral notched crown from which issue several flexible tongues each tongue ending with a base from which projects a corresponding character. For different fonts, in the corresponding disks, the characters present a similar angular position and the base of a similar character has the same dimension and form able to edge the envelope of the different fonts. A positioning wedge protrudes from the base of the character and cooperates with a V notched hammer of the machine. The tongues are regularly spaced following regular angular spaces and in the disk used for differential spacing characters, the axis of the characters are angularly shifted in relation to the wedges of the tongues in inverse ratio to the sizes of the character and to the spacing steps of which the disk is to be spaced after the printing of said characters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.