Internet-Only Manuals (IOMs) The Internet-only Manuals (IOMs) are a replica of the Agency's official record copy. They are CMS' program issuances, day-to-day operating instructions, policies, and procedures that are based on statutes, regulations, guidelines, models, and directives.
In 1905, Mogridge created the first crude protective head gear and was granted patent No. 780899 for a head protector.. This first attempt at a batting helmet was said to look like an inflatable boxing glove that wrapped around the hitters head..
Rickey's helmet, which looks like a hard-hat version of a baseball cap and is flocked to simulate a cap's cloth fabric, marks the beginning of the modern helmet era. 1956: A new rule goes into effect requiring National League batters to wear protective headgear -- either a Rickey-style helmet or a cap insert.