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RISTER - is a specially designed handle which can be inserted into the cylinder ring. Transport of cylinder on ground is made easy with RISTER as cylinder can be moved from one point to another with a controlled roll. The springy action of the slit on each arm of RISTER holds on to the cylinder ring thus avoiding the cylinder to slip. Once inserted into the cylinder ring, a slight twist of wrist sets the cylinder rolling. The person can start walking with the rolling cylinder holding RISTER in his hand. The unidirectional ratchet and pawl mechanism in the RISTER helps to control the rolling as well as to stop it.
IDC IIT Bombay
Kamlesh B. Sawant