Pneumatic brake actuating system

Pneumatic brake actuating system

A manually initiated, brake actuating system for immediate stoppage of the traveling block in a drilling derrick drawworks that overrides a conventional automatic drawwork safety control device. The system includes a normally closed, solenoid-controlled pneumatic valve mounted in an explosive resist...

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Hauptverfasser: URIBE, JORGE R
Format: Patent
Sprache:eng
Schlagworte:
CAPSTANS
HAULING
HOISTING
HOISTS
LIFTING
PERFORMING OPERATIONS
TACKLES, e.g. PULLEY BLOCKS
TRANSPORTING
WINCHES
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creator URIBE
JORGE R
description A manually initiated, brake actuating system for immediate stoppage of the traveling block in a drilling derrick drawworks that overrides a conventional automatic drawwork safety control device. The system includes a normally closed, solenoid-controlled pneumatic valve mounted in an explosive resistant container between the system air supply and the pneumatic brake for the drawworks drum. A manually operated electrical switch, when actuated, simultaneously (1) energizes the solenoid to the emergency override pneumatic valve,and (2) de-energizes the drawworks power circuit, cutting off power to the drawworks motor.
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The system includes a normally closed, solenoid-controlled pneumatic valve mounted in an explosive resistant container between the system air supply and the pneumatic brake for the drawworks drum. 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subjects CAPSTANS
HAULING
HOISTING
HOISTS
LIFTING
PERFORMING OPERATIONS
TACKLES, e.g. PULLEY BLOCKS
TRANSPORTING
WINCHES
title Pneumatic brake actuating system
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