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bers of the rubber industry’s Big Four—around midnight Thursday as two-year contracts expired.

Most of the 21,250 rubber workers members employed by the Goodyear Tire & Rubber Co., the other Big Four member, were on the job after union negotiators voted late Thursday to work on a day-to-day basis as bargaining continued.

Goodyear negotiating sessions are to resume at 10 a.m. Monday in Cincinnati where Uniroyal negotiators will meet Wednesday. Firestone sessions will be in Cleveland and Goodrich’s at Columbus.

Contract to Expire

A contract with the nation’s fifth biggest rubber producer, General Tire & Rubber Co., with 3,052 employes, expires May 15. Negotiations are under way in Cleveland.

A mutual aid agreement between General Tire and the Big Four went into effect as the rubber workers put up picket lines across the country, a company spokesman said.

Peter Bommarito, the union’s international president, criticized the mutual-aid agreement under which the two working companies would lend financial assistance to those struck.

The union has shown more militancy since Bommarito became president in September, and observers say apparently it is his full employment earnings program which is a major issue in negotiations.

The program would boost unemployment benefits from 65 to 92½ per cent of regular weekly pay for laid-off workers.

The union also is demanding a “substantial” wage increase, plus improved fringe benefits. Present wages for highest paid workers average $3.67 an hour, according to the union.