The successful accomplishment of the amalgamation was followed by a conflict with the employers, which riveted the attention of the whole Trade Union world upon the new body. The aggressive trade policy initiated by Selsby and Allan in Lancashire and Newton in London had been repeatedly confirmed by the delegate meetings of their society, and was formally incorporated in the basis of the larger organisation.[353] The more energetic branches were not slow in acting upon it. In 1851 the men at Messrs. Hibbert & Platt’s extensive works at Oldham made a series of demands, not only for the abolition of overtime, but also for the exclusion of “labourers and other ‘illegal’ men” from the machines. With these demands Messrs. Hibbert & Platt and other employers had to comply. The private minutes of the London Executive prove conclusively that the strike to oust labourers from machines was not authorised by the central body;[354] but as William Newton, now a member of the Executive, acted as the representative of the Oldham men in submitting these demands to Messrs. Hibbert & Platt, the employers, naturally inferring that his action was the direct outcome of the amalgamation, formed in December 1851 the Central Association of Employers of Operative Engineers to resist the men’s Union. Meanwhile the London Executive had been consulting the whole of the members on the proposal to abolish systematic overtime and piecework, and had obtained an almost unanimous vote in favour of immediate action. A manifesto was issued to the employers, in which the Executive announced the intention of the society to put an end to piecework and systematic overtime after December 31, 1851. The employers replied by an imperious declaration in the _Times_ that a strike at any one establishment would be met seven days later by a general lock-out of the whole engineering trade. The men thereupon offered to submit the question to arbitration, a proposal which the employers ignored. On January 1, 1852, the members of the Amalgamated Society refused to work overtime, and on the 10th the masters closed, as they had threatened, every important engineering establishment in Lancashire and the Metropolis.