Browse Prior Art Database

Joy Sphere

IP.com Disclosure Number: IPCOM000091146D
Original Publication Date: 1969-Nov-01
Included in the Prior Art Database: 2005-Mar-05
Document File: 3 page(s) / 62K

Publishing Venue

IBM

Related People

Stuckert, PE: AUTHOR

Abstract

In the employment of joy spheres with display and control devices, those presently in use are characterized by large size and significant mechanical and electrical complexity. Such complexity is evidenced by the need for friction drives, gear trains, up-down counters, etc. This joy sphere arrangement is relatively small as compared to known like devices and has no moving parts other than the sphere itself.

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Joy Sphere

In the employment of joy spheres with display and control devices, those presently in use are characterized by large size and significant mechanical and electrical complexity. Such complexity is evidenced by the need for friction drives, gear trains, up-down counters, etc. This joy sphere arrangement is relatively small as compared to known like devices and has no moving parts other than the sphere itself.

Drawing 1 is a partly vertical section of the joy sphere arrangement which comprises the joy sphere and an exciting source voltage for its primary P. Drawing 2 is a partly horizontal section of the transformer portion of the joy sphere and its associated electrical circuitry. In this arrangement, there is provided conductive sphere B, which can be nonmagnetic, soft magnetic or magnetic and having a conducting surface whose thickness is small relative to the radius of sphere B. The latter is mechanically arranged so that it can roll freely about its center CT, with a portion S of its surface protruding through panel or work surface WS.

Beneath sphere B, there is positioned a transformer assembly which comprises ferromagnetic or ferrimagnetic core C having the structural configuration shown in drawings 1 and 2. Wound around core C is primary winding P which is excited by sine-wave voltage source 0. Shading winding SW is wound about the central portion of core C. Wound about opposite sections of core C and connected in series opposition as shown in drawing 3 are identical secondary windings SX1 and SX2, and SY1 and SY2.

Phase sensitive rectifier PSR-Y has applied to it the voltage EY1, i.e., the voltage across SY1 and SY2 in series, and the output of source 0. Phase sensitive rectified PSR-X has applied to it th...