[About fifty, rather cold women and her husband‘s social superior] act 1
Stage direction show unsympathetic nature of Mrs birling and oxymoron of cold women as women at the time societal norms was to be loving and maternal so by describing her as cold foreshadows her later detached attitude.
he being describes as her husband social superior shows her upper class etiquette is not natural to the rest and foreshadows her later embrassment