Complex sentence: The British Daimler company and AEC (famous makers of London buses) began a joint venture in 1926 called Associated Daimler and Pomeroy was invited to join by Percy Martin of Daimler to be chief engineer with responsibility for the new venture's commercial vehicles.
Split into simpler sentences: The British Daimler company and AEC (makers of London buses) began a joint venture in 1926. It was named Associated Daimler and Pomeroy was recruited by Percy Martin of Daimler to be the chief engineer with responsibility for the new venture's commercial vehicles.