Patent · US Expired

Form band alignment device for a form printer

US4251162A · kind A · utility

9Cited by
11References
11Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 29, 1978
Grant dateFeb 17, 1981
Priority date
Expiry dateMar 29, 1998

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB41J15/04
  • WIPO fieldTextile and paper machines
  • WIPO sectorMechanical engineering

Abstract

A perforated form band is introduced into a form printer through an input passage or shaft. The passage is formed by spaced walls and is pivotally mounted on the printer for movement between an input position and a working position. In the input position, a form band is introduced into and aligned within the input passage. In one embodiment, the leading end of the form band contacts transversely extending stop surfaces, while in another the leading end of the form band is aligned with an indicating mark and the perforations on the form band engage with projections in the input passage. With the form band aligned, the input passage is moved into the working position engaging the perforations in the form band on pins projecting outwardly from sprocket wheels which drive the form band through the printer. In the working position of the input passage, the form band no longer contacts the stop surfaces or engages the projections used in the aligning operation.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.