Browse Prior Art Database

SPEED CONTROLLER FOR DC MOTOR FOR PAPER TRANSPORT

IP.com Disclosure Number: IPCOM000024619D
Original Publication Date: 1981-Jun-30
Included in the Prior Art Database: 2004-Apr-02
Document File: 2 page(s) / 38K

Publishing Venue

Xerox Disclosure Journal

Abstract

A speed control for a DC motor uses a photosensitive device on which falls a light beam from a beam splitter in the path of light from a lamp provided for other purposes, such as paper detection. The speed control beam is pulsed as a function of motor speed, as by impinging on an apertured belt or disc.

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XEROX DISCLOSURE JOURNAL

SPEED CONTROLLER FOR DC MOTOR FOR PAPER TRANSPORT
J. Emmelot

Proposed Classification
U.S. Cl. 271/31 Int. C1. B65h 3/08

LENS *

LAMP

A speed control for a DC motor uses a photosensitive device on which falls a light beam from a beam splitter in the path of light from a lamp provided for other purposes, such as paper detection. The speed control beam is pulsed as a function of motor speed, as by impinging on an apertured belt or disc.

Volume 6 Number 3 May/June 1981 113

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114 XEROX DISCLOSURE JOURNAL

Volume 6 Number 3 May/June 1981

[This page contains 1 picture or other non-text object]