Kit for servicing tape cartridge playback unit

Dynamic magnetic information storage or retrieval – Miscellaneous

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Details

15 32, 360132, G11B 541, A47L 2500

Patent

active

041588711

ABSTRACT:
A kit for servicing the interior working parts of a cartridge type tape playback unit comprising a completely hollow cartridge case having parallel track guide means disposed in its two sides. The hollow cartridge case is designed to actuate the unit when it is inserted in the unit and provide the user of the kit with an unobstructed view of the playback head, the capstan and the sensing poles as well as other similarly disposed interior working parts over which the tape would normally travel. A tool holder having a plurality of interchangeable service heads is provided. Two of the heads, one of abrasive material and the other of felt or the like, are formed with a concave cleaning surface and are dimensioned so as to be received between the guides in the side walls of the cartridge case. Another cleaning head includes cutter blades and a magnet and is also sized so as to be received within the guides. The guides are aligned with the capstan so as to direct these heads into intimate contact with the capstan surface. Another service head is formed as a swab of cotton-like material and is designed for cleaning the sensing poles and playback head. A still further service head is formed as a transparent plate having indicia positioned thereon for checking the alignment of the playback head, while yet another service head is formed as a metal probe for shunting the sensing probes to check proper operation thereof.

REFERENCES:
patent: B449892 (1976-03-01), Thompson
patent: 3407431 (1968-10-01), Melnik
patent: 3761994 (1973-10-01), Becht
patent: 3881195 (1975-04-01), Ono
patent: 3955214 (1976-05-01), Post et al.
Admiral Tape Player, #846, Chassis Service Manual, (5-74), p. 5.

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