Browse Prior Art Database

Isolation Circuit Tool

IP.com Disclosure Number: IPCOM000098238D
Original Publication Date: 1960-Jun-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 2 page(s) / 61K

Publishing Venue

IBM

Related People

Northrop, AW: AUTHOR [+3]

Abstract

The isolation circuit tool 10 consists of a pluggable circuit card 11 having apertures for receiving the ends of electrical conductors 12. The ends of the conductors 12 project through the apertures in the card 11 to be joined by a fillet of solder to terminals (not shown) disposed upon the tongue 13 of card 11.

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Isolation Circuit Tool

The isolation circuit tool 10 consists of a pluggable circuit card 11 having apertures for receiving the ends of electrical conductors 12. The ends of the conductors 12 project through the apertures in the card 11 to be joined by a fillet of solder to terminals (not shown) disposed upon the tongue 13 of card 11.

A T-shaped block I4 is suitably secured to the card 11 at its upper end and is provided with recesses 15 and 16 for grouping and confining the conductors 12. A longitudinal support rod 17 is fixed at one end to extend from the block 14. The other end of the rod 17 is adapted to be inserted into an aperture 18 provided in a boss element 19 projecting from the side of test receptacle 20. Detents 21 for the receptacle 20 extend from the rod 17. The receptacle 20 has a plurality of contact elements 22 for making contact with terminals 2 adherent to a circuit card 1 which is to be tested.

The card 1 normally is plugged into a receptacle 30 having contact elements
31. During a test operation, however, the card 11 is plugged into the receptacle 30 to permit the testing of card 1 which is plugged into receptacle 20. Conductors are attached to the portion of the contact elements 31 projecting from the receptacle 30 in a rather permanent manner by wrapping. The ends of the conductors 12 are fitted with terminals 23 adapted to slip onto and embrace the projecting portion of elements 22. With this arrangement, selected conductors 12 may be disc...