A Book of Exposition by Homer Heath Nugent
page 25 of 123 (20%)
page 25 of 123 (20%)
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[Illustration: Fig. 2.]
Fig. 2 illustrates the general organization of the machine. _A_ represents an inclined channelled magazine in which the matrices are stored. Each channel has at the lower end an escapement _B_ to release the matrices one at a time. Each of these escapements is connected by a rod _C_ and intermediate devices to one of the finger-keys in the keyboard _D_. These keys represent the various characters as in a typewriter. The keys are depressed in the order in which the characters and spaces are to appear, and the matricies, released successively from the lower end of the magazine, descend between the guides _E_ to the surface of an inclined travelling belt _F_, by which they are carried downward and delivered successively into a channel in the upper part of the assembling elevator _G_, in which they are advanced by a star-shaped wheel, seen at the right. The wedge-shaped spaces or justifiers _I_ are held in a magazine _H_, from which they are delivered at proper intervals by finger-key _J_ in the keyboard, so that they may pass downward and assume their proper positions in the line of matrices. When the composition of the line is completed, the assembling elevator _G_ is raised and the line is transferred, as indicated by dotted lines, first to the left and then downward to the casting position in front of the slotted mold seated in and extending through the vertical wheel _K_, as shown in Figs. 2 and 3. The line of matrices is pressed against and closes the front of the mold, the characters on the matrices standing directly opposite the slot in the mold, as shown. The back of the mold communicates with and is closed by the mouth of a melting-pot _M_, |
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