Titleist in innovation for the golf ball market as a whole and for the brand, which had traditionally used a wound-ball construction (with a liquid-filled core center) for its top-of-the-line golf balls. Shortly after its introduction the Titleist Pro V1 became the most played ball on the PGA Tour and has been for the past 20 odd years, picking up the most worldwide wins from both direct brand ambassadors (meaning they play titleist equipment) and players who are not directly under contract and considered brand ambassadors from Ttitleist., and three years after Titleist's initial breakthrough with the Pro V1 came the
Clayton Equipment Company ownership at higher levels, Clayton Equipment Ltd came to be owned by Rolls-Royce in 1989. It nonetheless retained a significant measure of autonomy, and in March 2005, it became an independent company again. Much of the company's orders now come from overseas, from countries such as Ireland and Russia. The company's main products are locomotives for underground mining, including battery-electric and diesel-hydraulic types. It also provides equipment refurbishment and training. Four new 75 hp battery powered locomotives named Walter, Lou, Anne and Kitty were built by Clayton Equipment in Derby to haul materials and plant along the line during the