Typewriter the first major typewriter with these features. However, older "nonvisible" models continued in production to as late as 1915. A significant innovation was the shift key, introduced with the Remington No. 2 in 1878. This key physically "shifted" either the basket of typebars, in which case the typewriter is described as "basket shift", or the paper-holding carriage, in which case the typewriter is described as "carriage shift". Either mechanism caused a different portion of the typebar to come in contact with the ribbon/platen. The result is that each typebar could type two different characters, cutting the number of keys and
Paint roller secured to the cylindrical core. Foam rubber rollers are also produced. There are both foam and fabric rollers that are individually available (without a handle), made to replace worn out rollers, once an old roller is removed the new roller can be fitted onto the handle section for use. An innovation of the cylindrical core has allowed it to contain paint inside, with the cover absorbing paint from the inside and filtering it through (naturally by wicking) to be applied externally, when the roller is rolled. In 1938 Morris Welt was a painting contractor in New York City. His son,