Rockwell Thompson
1972 Rockwell Standard of America acquired John Thompson Pressings Division.
1986 Parkfield Foundries acquired Rockwell Thompson Ltd, except for the axle bay which Rockwell retained.
1990 Parkfield Group tried, but failed, to sell the Thompson Pressings and Fabrications section. The Parkfield Group collapsed in July, due to the failure of their Entertainments Division caused by over-investment in video films. The Pressings and Fabrications sector was sold to a management buyout. This became UPF on 31st August. This was basically the chassis making concern and seems to have been very successful.