What are Two situation in field where where worm gear pulley block is used?

Worm gear pulley blocks are commonly used in construction sites for lifting heavy materials, such as steel beams or concrete blocks, due to their ability to provide significant torque and control. They are also employed in theater rigging systems to hoist and position lighting and scenery, allowing for smooth and precise adjustments. These applications benefit from the worm gear's self-locking feature, ensuring safety and stability while handling heavy loads.