Browse Prior Art Database

Mechanical Interlock Device

IP.com Disclosure Number: IPCOM000096387D
Original Publication Date: 1963-May-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 2 page(s) / 74K

Publishing Venue

IBM

Related People

Larson, RT: AUTHOR [+2]

Abstract

The door interlock can be used with an automatic cartridge loading device for a tape transport. A single integral frame for the device includes structural parts 10a, 10b and 10c which are solidly fixed together. Door 11, which is covered by glass plates 13, is supported on one side by hinges 12 fastened to frame part 10a. Door 11 contains handle 14 which permits it to be swung manually about hinges 12 except when interlocked.

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Mechanical Interlock Device

The door interlock can be used with an automatic cartridge loading device for a tape transport. A single integral frame for the device includes structural parts 10a, 10b and 10c which are solidly fixed together. Door 11, which is covered by glass plates 13, is supported on one side by hinges 12 fastened to frame part 10a. Door 11 contains handle 14 which permits it to be swung manually about hinges 12 except when interlocked.

Door 11 is locked when the end of rod 32 engages opening 34 in the upper side of door 11. Rod 32 is slideably supported through openings in frame part 10c and bracket 33 fastened to 10b.

A cartridge, which can contain magnetic tape, is supported by a pair of similar arms 24, one arm only being shown, engaging respective slots in the cartridge. Each arm 24 is fastened to a nut mechanism 22 which is engaged by threaded member 23. This is located at the side of the cartridge, only one of the two threaded members being shown. Screw members 23 can be rotated, without moving them longitudinally, in order to move the nut members 22, and the cartridge supported by them, in an upward or downward manner. Devices, not shown, control the rotation of screw member 23 to obtain the desired movement. Position 21a represents an extreme upward cartridge position in which a cartridge can be loaded or unloaded from arms 24. Position 21b represents an extreme downward position in which the cartridge can be operating on a tape transpor...