Page:The New International Encyclopædia 1st ed. v. 19.djvu/688

* TYPESETTING MACHINES. 594 TYPESETTING MACHINES. chine was ooiiipleted in 18S4. This machine takes its name from the fact that it sets up a line of molds, and casts a line of type, or rather a solid metal har with raised letters on one edge, which is known as a 'slug" and is the same as if a line of types were fused solid. These molds or mat- rices are small pieces of sheet metal, each with a letter im- pressed on its edge, as shown in Fig. 1. They are placed in maga- zine tubes, as shown in the illustration. Fig. 2. all the rt"s in one tube, all the t's in another, and so on. the tubes being arranged ver- tically in a continuous line. The machine has a keyboard like a l'i«. 1. MATRIX typewriter, and the depression of FOR MERGES- jj jjpy ^g J) couuectcd by a rod. THALER MACHI-NE. „ -.,, ,, ' . i C. With the escapement. B, causes a matrix to drop into an inclined channel. E, down which it falls to the inclined traveling belt, F, by which it is carried to the assembler, or stick, G, where it takes its place in line. The spaces, I, be- tween words are simjily duplex wedges, dropped into position from a box. H. in the same way as the matrices when the finger key, J, is pressed. When the compositor has set all that will go into a line, the duplex wedges are slid one upon another, thus 'spacing out' the line, and the line so formed is carried over in front of a slot on the wheel K, where automatically the line of type is cast with metal from the reservoir, 11, shown in detail in &^ POT, MOLD WHEEL, MACHINE. OP LIXOTTPE- the distributor, T, whence they find their way to the appropriate magazine tubes, each matrix be- ing released at the proper point. A speed of 4000 cms an hour is the average rate of .a good Lino- type operator, while those unusually expert at- tain as high a speed as 5000 to 6000 ems. The advantages of this machine are, among others. tJECTOR PUbHiNGj' LINOTYPE FROM MOLD TO GALLEV ARM TO CARRY SLUGS OVER IN GALLEY RECEIVING GALL Fig. 2. mergenthaler linotype machine showing e8se.vtial parts. Fig. 3, and its sides and base planed, after which the mold wheel, K, makes a quarter of a revolu- tion and the slug is defMsited on a galley. The matrices meanwhile are released and passed over- head to the bar, R, where thin teeth engage on its horizontal ribs. This bar rises as sho^vTl by the dotted line, and the matrices are carried up to LINOTYPES READY FOR USE Fig. 4. MOLD WHEEL OF LINOTYPE MACHINE. that it gives constantly a new type-face to print from, and also that there is no distributing to be done, the slugs being remelted after they have been used. The 'spacing out' device is another and a very decided advantage. The Linotype ma- chine has become the most extensively used of any machine ever devised for the mechanical com- position of types, and in its latest form performs successfully the most intricate kinds of compo- sition, including tabular matter and the use of several classes of cliaracters. The Lanston 'Monotype' machine, like the Mergenthaler 'Linotype.' is primarily a type- casting machine, but with the radical distinction that it casts separately each letter, point, and 1 sign, including the spaces. The machine is con- structed in two parts, viz. a keyboard and a