A hoist is a mechanical device which is used in lifting and lowering any bodies with the help of chain or ropes wrapped in a lift wheel or a drum. It can be manually operated or is pneumatically or hydraulically operated.
A safety latch is a safety device which is attached to the hook of the hoist and it locks and prevents the object from falling. Thus the hoist is safe to stopped at any level when the safety latch is engaged.
Overall, technology is not the end-all be-all of sustainability, but it is a tool that can be used to effectively create larger amounts of communication and collaboration, and clearer sets of information.