In 1891 the “Densmore” typewriter first made its appearance before the public. It was named after James and Amos Densmore, who had been connected with typewriting interests from the time of Sholes’ first practical machine. The Densmore is made under patents to A. Densmore, No. 507,726 and 507,727, of Oct. 31, 1893. It has ball-bearing type bar joints, giving accurate alignment and light key action, the platen rolls to show the work, and the carriage locks at the end of the line, protecting the writing. Noted for its clear, sharp print, the “Yost” typewriter comes in for its share of praise. It is made under the patent to Felbel and Steiger, March 26, 1889, No. 400,200. It does not employ an inked ribbon interposed between the type and the paper, as do most typewriters, but its type-bearing levers, when at rest, occupy a position in which the type are all arranged within and bear against a circular inking ring or pad, and when a key is struck, its lever, by a peculiar and ingenious movement, leaves the inking pad, moves inward and backward toward the center, and then rises and strikes an upwardly directed blow in the center, and prints the letter on the paper. As the printing is done directly from the type, the letters are formed with sharp and clear outlines that give beauty and neatness to the print. Alignment is insured by a center guide hole through which the type end of the lever passes in striking the paper. Among machines of simple organization may be mentioned the Blickensderfer, which is a wonderfully simple and effective little machine, first made under the patent to Blickensderfer, No. 472,692, April 12, 1892. Like the Hammond, it belongs to the class of typewriters which employ a rotary type wheel, which is given a variable throw, from the depression of the keys, to bring the proper letter into printing position; but unlike the Hammond, its type wheel advances to contact with the paper, a little felt ink-roller being brought into contact with the type wheel to ink it as the latter moves. The printed work is in full view, the line spacing may be varied to any fractional adjustment, and the action is quite free from noise. With its mechanism reduced to the fewest and simplest parts, the whole machine weighs only six pounds, and it differs in many respects from the ordinary typewriter. Since its introduction a few years ago, its growth in popularity has been very rapid.