Fmc Technologies, Inc.

Nabors Well Services Ltd.

Vernon Raymond Jenkins

Roy H Cottrell

The present disclosure provides improved linkage assemblies for use with drilling rig and mobile well servicing rig braking systems, and braking systems comprising such improved linkage assemblies. The disclosed improved linkage braking assemblies effectively decouple the emergency brake actuation cylinder shaft and the brake lever upon activation of the emergency brake actuation cylinder, thereby preventing the brake lever from rapid and forceful downward movement, which could injure the operator.

Linkage assembly for drilling or mobile well servicing rig braking system

A swing arm type chain support with a hook arrangement integral with a swing arm which allows a mooring chain to ratchet over the hook while tensioning, then automatically engage the hook when tension is reduced.

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Humble, TX, United States of America

Vernon Raymond Jenkins