MAGAZINES
The magazine is the receptacle in which a font of matrices is stored on the machine, ready for instant use as the matrices are desired in assembling a line. Some of the main features of the different model machines are the number of magazines carried on the machine at one time, the size or width of the magazine, and the manner of removing the magazines.
The magazine or channel plate consists of 92 channels milled in the brass plates, which guide the lugs of the matrices and keep them in line, so as to pass the escapements one at a time. Model 1 magazines have the old style channel entrances, attached to each magazine frame. The model 1 magazines are narrow, and will only carry matrices up to and including 11-point. The escapements of this model are fastened directly to the magazine.
The magazine for a model 2 or 3 machine is practically the same as a model 1 in construction, with the exception of being two inches wider at the lower end.
The verges on these models are practically the same as on the model 1, but on account of the difference in width of the magazines, are thicker. In this style the verges are locked by turning the grooved escapement verge locking bar one-fourth of a turn. This is turned by the crank at the right-hand side of the magazine. The keyboard is locked with a bar the same as the model 1.
The channel entrance is similar to the model 1.
The lower magazine of the model 2 is shorter than the upper magazine. The matrices are released by the same keyboard mechanism. The escapements, however, are on the top of the magazine instead of beneath it. Each keyrod has a lug fastened to the back end of it, which engages the escapement levers connected to the escapements. When the lower magazine is being used, the keyrod is raised and allows the verge spring to operate the escapement, releasing the matrix. The keyrod spring pulls the escapement lever down. This lever brings the escapement into position, ready to release another matrix.
The escapements on both magazines are capable of movement, as the verge springs of both tend to raise the escapements, but are prevented from doing so by the keyrod spring. The matrices are prevented from escaping from both magazines at the same time by a pair of grooved rods, which lie between the verges and the magazine. The locks on these rods are so arranged that the locking of one escapement unlocks the other, the movement of these being controlled by a hand lever at the right of the face plate, directly above the keyboard.
The model 3 magazine is the same as the model 2 (upper). The escapement action is also the same.
The upper magazine of a model 4 is a removable magazine which is independent of the escapement mechanism or the channel entrance. This magazine is as wide as the model 2 or 3, but is not interchangeable with them. This magazine is interchangeable with those of a model 5, 8, 14, 18, 19, or 14-s-k.