Sholes and Glidden typewriter length. The redesigned platen also introduced the modern spacing functionality (horizontal and axial movement providing letter and line spacing, respectively). The cylindrical platen became "an indispensable part of every standard [typewriter]". By the end of 1872, the appearance and function of the typewriter had assumed the form that would become standard in the industry and remain largely unchanged for the next century. Although the machine possessed a cylindrical platen and what was essentially a QWERTY keyboard, two design elements that would later become essential were lacking: the ability to write in upper and lowercase letters and "visible" print. Although the
Typewriter desk in production but as computer desks. In order to achieve the highest typing results the height of table should be 75 cm, the width of desk (distance from eyes to computer screen 50–70 cm) not more than 80 cm. Typewriter desk A typewriter desk is an desk form meant to hold a typewriter at the proper height for the typist's hands while still allowing a seat height that is low enough to be comfortable for the typist's feet. This height is usually a few inches lower than the 29 inch (73.7 cm) height of the traditional desk. Without a proper