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Belt Loading and Ejecting Apparatus

IP.com Disclosure Number: IPCOM000096677D
Original Publication Date: 1963-Sep-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 2 page(s) / 63K

Publishing Venue

IBM

Related People

Dollen, WL: AUTHOR

Abstract

A magnetic recording belt is automatically ejected from or loaded into a dictating machine when release lever 11 is manipulated. Pulling lever 11 causes lever 12 and arm 13 to move forwardly and pin 14 immediately engages extension 15 of idler roll mounting bracket 16. This is pivoted at 17 and journals idler roll 18 about which the belt is supported. Movement of bracket 16 results in roll 18 being moved so that tension is released from the belt. Pin 19, carried by bracket extension 15, has an end which projects through elongated slot 20 in arm 21. Hairpin spring 22, attached to pin 19 and arm 21, normally maintains the pin at the rear of slot 20 and idler roll 18 in its outermost position in tensioned relation with the magnetic belt.

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Belt Loading and Ejecting Apparatus

A magnetic recording belt is automatically ejected from or loaded into a dictating machine when release lever 11 is manipulated. Pulling lever 11 causes lever 12 and arm 13 to move forwardly and pin 14 immediately engages extension 15 of idler roll mounting bracket 16. This is pivoted at 17 and journals idler roll 18 about which the belt is supported. Movement of bracket 16 results in roll 18 being moved so that tension is released from the belt. Pin 19, carried by bracket extension 15, has an end which projects through elongated slot 20 in arm
21. Hairpin spring 22, attached to pin 19 and arm 21, normally maintains the pin at the rear of slot 20 and idler roll 18 in its outermost position in tensioned relation with the magnetic belt. As lever 11 is pulled, pin 19 moves in slot 20 and eventually arm 21 moves forwardly away from stop 23 against the action of spring 24. This results in rotation of bail 25 to raise transducer 26 above the surface of the belt. Spring 24, which exerts a greater force than spring 22, insures that transducer 26 is maintained in operative lowered relation with respect to the belt. This occurs during normal dictating operations and holds arm 21 against stop 23 so that spring 22 solely determines the tension exerted on the belt.

Slotted extension 27 carried by arm 13 eventually engages and pivots bellcrank 28. As this pivots, stop 29 moves behind bracket extension 15 to maintain the roll 18 in its inner...