The early gutta-percha balls had smooth, painted surfaces and poor flight characteristics. Makers began adding hammered or molded patterns. Changing the surface was therefore a separate development from changing the substance of the ball.1
A later construction is recorded precisely in U.S. patent 622,834. Bertram G. Work and Coburn Haskell applied in August 1898; the patent was granted in April 1899. It describes rubber thread wound under tension, enclosed by gutta-percha or a substitute cover.2
Solid construction has its own chronology. A USGA technical notice places the modern solid ball in 1967 and multilayer examples in 1968. These dates describe construction changes, separate from the earlier use of a solid gutta-percha ball.3
The Pro V1 is one later example of a multilayer design. Titleist’s account of its 2000 introduction describes a solid core and cast urethane cover. It shows why a ball’s date, core, intermediate layers and cover deserve separate descriptions.4
At a glance
Sources
- USGA and The R&A, 2020Distance Insights Report
- United States Patent Office; Google Patents transcriptionU.S. Patent 622,834: Ball
- USGA, notice to manufacturers effective January 1, 2014Hollow metal core golf balls, Notice B2014-001
- Titleist25 Years of Pro V1 Innovation