Browse Prior Art Database

Rotary Positioning Device

IP.com Disclosure Number: IPCOM000096335D
Original Publication Date: 1963-Apr-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 2 page(s) / 58K

Publishing Venue

IBM

Related People

Leary, TG: AUTHOR

Abstract

This device positions shaft 11 in accordance with digitally coded electrical signals. Five disks 15A ... 15E are rotatably mounted on shaft 11. Each of the disks 15A ... 15E has attached to it an arm, respectively, 17A ... 17E. Each of the arms 17A ... 17E can be moved by an electromagnet, respectively, 16A ... 16E. Magnets 16A ... 16E are fixed to a frame, not shown. The digitally coded electrical input signals actuate magnets 16A ... 16E, one magnet being actuated by each digit. Disks 15A ... 15E are thus positioned relative to each other.

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Rotary Positioning Device

This device positions shaft 11 in accordance with digitally coded electrical signals. Five disks 15A ... 15E are rotatably mounted on shaft 11. Each of the disks 15A ... 15E has attached to it an arm, respectively, 17A ... 17E. Each of the arms 17A ... 17E can be moved by an electromagnet, respectively, 16A ... 16E. Magnets 16A ... 16E are fixed to a frame, not shown. The digitally coded electrical input signals actuate magnets 16A ... 16E, one magnet being actuated by each digit. Disks 15A ... 15E are thus positioned relative to each other.

Disks 15A ... 15E have notches on their periphery. For each possible combination of input signals there is one position around the periphery of disks 15A ... 15E where the notches in such disks are all aligned.

The driving force for the mechanism is supplied by the rotation of shaft 6 which is fixed to gear 7. Unless detent 5 is settled in an aligned set of notches, segment 4 of arm 12 engages gear 7 thus moving detent 5 around the periphery of disks 15A ... 15E. When detent 5 arrives at a position where the notches in the gears are aligned, spring 13 pulls detent 5 into the notches thus lifting detent 4 from gear 7. As detent 4 moves arm 12, shaft 11 is also moved through arm 8 which is attached to arm 12 at point 14.

A series of these devices can be cascaded, the output shaft 11 of one being connected to the input 6 of another to provide a highly accurate positioning device.

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