Who gave the concepts of ‘social invasion of work place’ and ‘long arm of job’ in labour welfare ?

Industrial sociologist 'Charles Spaulding' (building on Robert and Helen Lynd's *Middletown* studies and discussed in M.V. Moorthy's *Principles of Labour Welfare*) highlighted the twin concepts of the 'long arm of the job' (how factory working conditions reach into the worker's family and community life) and the 'social invasion of the workplace' (how outside social concerns enter the factory).