United Steelworkers v. American Manufacturing Co.

Opinion of the Court by

Mr. Justice Douglas, announced by Mr. Justice Brennan.

This suit was brought by petitioner union in the District Court to compel arbitration of a “grievance” that petitioner, acting for one Sparks, a union member, had filed with the respondent, Sparks’ employer. The employer defended on the ground (1) that Sparks is estopped from making his claim because he had a few days previously settled a workmen’s compensation claim against the company on the basis that he was permanently partially disabled, (2) that Sparks is not physically able to *565do the work, and (3) that this…