A battery enveloping assembly and a battery incorporating such an enveloping assembly are disclosed. The base member includes a plate portion on which a head stack assembly is pivotably mounted to record data in a disk or to read data recorded in the disk, and a crash stop portion which limits a pivoting range of the HSA and includes a boss integrally formed with the plate portion. In one aspect, an industrial automation system is provided. A nozzle throat is formed at the nozzle end of the combustion chamber. The default and N restart sub-streams correspond to a media content.