Rubber band Rubber band A rubber band (also known as an elastic band, gum band or lacky band) is a loop of rubber, usually ring shaped, and commonly used to hold multiple objects together. The rubber band was patented in England on March 17, 1845, by Stephen Perry. Most rubber bands are manufactured out of natural rubber or, especially at larger sizes, elastomer, and are sold in a variety of sizes. Rubber bands are made by extruding the rubber into a long tube to provide its general shape, putting the tubes on mandrels, curing the rubber with heat, and then slicing it
Rubber band gun a set number of teeth apart. Fully automatic mechanisms for rubber band guns are analogous to automatic firearm mechanisms, in that the energy used to drive the gun's mechanism is derived from the same source as that which provides energy to propel the projectiles (in the case of automatic rubber band guns, the potential energy stored in the stretched rubber band). Fully automatic designs pose significant challenges to designers, such as how to control rate of fire. A rubber band rotary gun consists of between 3 and 12 repeater RBGs arranged on a cylindrical "rotor" as barrels. The rotor rotates