Browse Prior Art Database

Rotating Card Machine

IP.com Disclosure Number: IPCOM000075769D
Original Publication Date: 1971-Nov-01
Included in the Prior Art Database: 2005-Feb-24
Document File: 2 page(s) / 72K

Publishing Venue

IBM

Related People

Kruspe, HR: AUTHOR [+2]

Abstract

A magnetic coated media in the form of a standard size tabulating card is inserted in the machine shown and formed into a belt for recording and playback of audio (or digital) signals.

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Rotating Card Machine

A magnetic coated media in the form of a standard size tabulating card is inserted in the machine shown and formed into a belt for recording and playback of audio (or digital) signals.

In Fig. 1, card 1 is inserted in throat 2 of the machine. As shown in Fig. 2, it engages a card sensing switch 3 which closes, thereby supplying current to the machine. A steel band or belt 4 which has a stop pin 5 and card pickup pin 6 starts to turn and picks up the card drawing it into the machine, shaping it into a belt form around the idler and drive capstans 10 and 11. The card sensing switch 3 stays made as long as a card is present.

The head traverses across the width of the card as the card rotates about the capstans for dictate and listen modes. Recording on this media size is 10 minutes at the same recording rate as the IBM Model 224 portable dictation unit.

The machine is automatically phased as a card is inserted, by pickup pin 6 on band 4 engaging a predetermined slot 12 on the card. Thus, operator phasing has been eliminated.

The unit includes head 15 and a ball bearing speed reducer drive pawl and backspace mechanism as in the Model 224 unit.

The battery is housed and suspended within idler capstan 10. Capstan 10 rotates about the battery.

The index marking of the media is programmed by a special mechanism controlled by button 13 and operated by the operator, as set forth in the article entitled "Magnetic Card Marking Device" in the IBM Technic...