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Filing date
Publication date
Priority claimed from GBGB9619596.1Aexternal-prioritypatent/GB9619596D0/en
Priority claimed from GBGB9707714.3Aexternal-prioritypatent/GB9707714D0/en
Application filed by British TelecommfiledCriticalBritish Telecomm
Priority claimed from NZ332924Aexternal-prioritypatent/NZ332924A/en
Publication of NZ507876ApublicationCriticalpatent/NZ507876A/en
Light Guides In General And Applications Therefor
(AREA)
Electric Cable Installation
(AREA)
Abstract
A rotation sensor (not shown) determines direction of movement of the rotatable drive wheels 2,3. Controller 19 causes drive motor(s) of drive wheels 2,3 (not shown) to apply a holding torque to wheels 2,3 to counter rotation opposite to normal rotation.
NZ507876A1996-09-191997-09-17Blowing head for optical fiber installation in duct with sensor and controller to apply braking to drive motor
NZ507876A
(en)