Patent · US Expired

Tape guiding device for a magnetic instrument

US3990110A · kind A · utility

4Cited by
4References
2Claims
0Family size

Assignee

Inventor

Key dates

Filing dateAug 14, 1975
Grant dateNov 2, 1976
Priority date
Expiry dateAug 14, 1995

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG11B15/61
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

A magnetic tape guiding device for use in a magnetic tape instrument having a magnetic tape, a supply reel for supplying the magnetic tape, a drum arrangement including a rotary magnetic head arrangement disposed in a drum having a transverse division for the recording and playback of the magnetic tape, and a take-up reel for receiving the magnetic tape; the magnetic tape having a path extending from the supply reel to the drum where it follows a helical path along the circumference of said drum for about 180.degree., and then to the take-up reel; the device featuring first and second cylindrical vertical level equalizing elements disposed in the path of the magnetic tape on opposite sides of the drum, the elements being axially askewed with respect to the drum, oppositely offset with respect to the division in the drum and each being disposed tangent to a plane tangent to said drum, the path of the magnetic tape having a portion extending along the circumference of each element for about 180.degree., the reels being disposed at substantially the same level and substantially at the same level as the division.

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