crown block

crown block

[′krau̇n ‚bläk]
(petroleum engineering)
A wooden or steel beam joined to the tops of derrick posts of an oil well to support pulleys.
References in periodicals archive ?
ILLUSTRATION OMITTED] 3 Referring to Diagram III, join 4 multicolor print 3 1/2" squares, 4 cream/lavender flying geese and black beads print 6 1/2" square to make King's Crown Block.
Number of Blocks & Finished Size 9 Sawtooth Star Blocks 12" x 12" 9 King's Crown Blocks 12" x 12"
API-4F covers derricks, masts, crown block assemblies and substructures.
Crown Block E features the finest entertainment experience with all stadium seating, the best digital sound, and an extensive concession menu.
DSL is API 4F and 8C licensed for the design, manufacture and certification of drilling structures and crown blocks, enabling it to design, build, analyse, repair and re-certify drilling derricks and land rigs.
Parts include, but not limited to mud pumps, drawworks, traveling blocks, hooks, swivels crown blocks and deadline anchors.
Structural Dynamics Engineering develops a variety of products for the automotive industry and oil field services companies with product lines of land drilling rigs, crown blocks, top-drives, traveling blocks, rotary tables, pipe handler equipment, catwalks, automation, robotics, full repair services and equipment for material handling.