[3] Deciding to go into business, Williams joined with fellow Cranwell pupil Frank Whittle and fellow ex-RAF officer James Collingwood Tinling to set up Power Jets Ltd in 1936 to develop Whittle's idea of jet engines for aircraft.
[4] At the 1950 general election, Williams was a Conservative candidate for Brierley Hill in Staffordshire but lost to Labour.
[4][1] While Williams concentrated on the aircraft industry and the RAF, he also introduced his own Private Member's Bill to extend the legal protection against poaching in 1952.
[6] During the December 1954 controversy over Rudolph Cartier's television adaptation of Nineteen Eighty-Four by George Orwell, Williams was one of five Conservative MPs who jointly tabled a motion in the House of Commons that attacked "the tendency, evident in recent British Broadcasting Corporation television programmes, notably on Sunday evenings, to pander to sexual and sadistic tastes".
After his re-election, Williams advocated a hawkish approach to Egypt on the Suez issue, and supported police crackdowns on demonstrations for nuclear disarmament.