History of the Typewriter

Forfatter: Geo. Carl Mares

År: 1909

Forlag: Guilbert Pitman

Sted: London

Sider: 318

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The Crown. This machine is the invention of Mr. Brooks whose other machine, named after himself, we have already dealt with. It was placed on the market in 1888, and has its types arranged in three rows of twenty-seven each on the periphery of the wheel. The wheel strikes the Fig. 177. platen in a manner somewhat resembling the Blick, and the inking arrangements are also after the same description. The type-wheel being of metal, and the platen of hard rubber, manifolding may be easily executed on the Crown. The type-wheels were interchangeable, and several varieties were procurable. The Century. This is an instrument using a pointer, on the Hall principle, and is also the invention of Thomas Hall, of New York, whose first invention was described in our first chapter, page 33. Using a type cylinder with ten rows of type of ten characters each, making one hundred Fig. 178. characters, this form allows the greatest number of characters to be embodied, in a. very snicill cincl portable instrument. The cylinder is rotated by a rack fixed to a sliding handle operating a pinion at end of the type cylinder. The frame in which the cylinder is held slides in the frame to which