Dual take-up reel

Abstract

Abstract A TAKE-UP REEL HAVING INNER AND OUTER CONCENTRIC HUBS FOR THE TEMPORARY STORAGE OF TAPE, SUCH A MAGNETIC TAPE, FROM A SUPPLY REEL IS DISCLOSED. TYPICALLY THE TAPE WILL INCLUDE A LEADER TAPE ASSOCIATED WITH BOTH THE TAKE-UP REEL AND THE SUPPLY REEL WITH THE TAPES COUPLED TOGETHER BY MEANS OF A LEADER HOOK. THE LEADER TAPE OF THE TAKE-UP REEL IS WOUND ON THE INNER HUB OF THE TAKE-UP REEL WHILE THE LEADER TAPE OF THE SUPPLY REEL AND THE INFORMATION BEARING TAPE FROM THE SUPPLY REEL ARE WOUND ON THE OUTER HUB OF THE TAKE-UP REEL. THE INNER AND OUTER HUBS ARE ARANGED FOR COAXIAL BUT INDEPENDENT ROTATION. THE OUTER HUB HAS CUTAWAT PORTION WHICH PROVIDES AN APERTURE INTO WHICH THE LEADER HOOK COUPLING THE LEADER TAPE OF THE TAKE-UP REEL AND THE LEADER TAPE OF THE SUPPLY REEL IS LODGED. WHEN THE LEADER HOOK IS LODGED IN THE APERTURE, THE INNER AND OUTER HUBS ARE COUPLED TOGETHER FOR COINCIDENT ROTATION. SINCE THE LEADER HOOK IS LODGED IN THE APERTURE, THE INFORMATION BEARING TAPE FROM THE SUPPLY REEL, WHICH IS WOUND ON THE OUTER HUB OF THE TAKE-UP REEL, IS NOT STRETCHED NOR DISTORTED AS IT IS WOUND ON THE OUTER HUB OF THE TAKE-UP REEL. DRIVING POWER FOR TURNING THE TAKE-UP REEL IS APPLIED TO THE INNER HUB. WHEN THE LEADER HOOK IS LODGED IN THE APERTURE, THE INNER AND OUTER HUBS ARE COUPLED TOGETHER SO THAT THE INNER AND OUTER HUBS ROTATE AT THE SAME ANGULAR VELOCITY. IN A SIMILAR MANNER WHEN THE TAPE IS BEING REWOUND ON THE SUPPLY REEL, THE LEADER HOOK MAINTAINS THE COUPLING BETWEEN THE INNER AND OUTER HUBS OF THE TAKE-UP REEL THEREBY MAINTAINING THEIR ROTATION AT THE SAME ANGULAR VELOCITY. HOWEVER, AS SOON AS THE LEADER HOOK IS WITHDRAWN FROM THE APERTURE, THE OUTER HUB CEASES TO ROTATE AND ONLY THE INNER HUB IS ROTATED

Inventors

• 👤 Edwin W Trefzger
• 👤 Bruce Crimmins

Bibliographic Details