Joy Wheels, which can be traced to key seaside resorts from 1910 and which remained a popular novelty into the 1920s, consisted of a highly polished wooden circular riding platform. Participants packed themselves onto the disc which at first would rotate slowly and gradually increase in speed so that the centrifugal force, alongside intermittent braking by the operator, caused people to slide off and be deposited amongst the cushioned circumference area. In the early 1920s joy wheels could either be tra- ditional travelling versions (usually travelling fairground attractions) or they could be fixed, for example in an amusement park or on a pier.They were popular in England and Ireland and also inThe United States of America.