note that the casting units start operating automatically as each magic's line is delivered it takes from five to ten seconds for a complete cycle depending upon the speed of assembly all the while the operator continues to compose let's go into the explanation of this group are one half of the power of motors supplies the driver transmitted by a large pulley through a transmission gear and about many of the basic mechanical actions of the machine depend on the ten large eccentric can situated at the rear with a series of springs they make up a completely automatic set these eccentric cams are synchronized to rotate together since they are all mounted on the same shaft that can begin to rotate as soon as the delivery slide terrorise the metrics line into the first elevator drop this a stop in the delivery can at the rear of the machine the two friction issues of the driving clutch are then pressed against the inside of the driving pulley that's causing the driving shaft to rotate the ca m at the opposite end this shaft has opinion that transmits the movement to the large driving gear on the camshaft the cam that's made to rotate every complete turn of the camshaft corresponds to the casting of us know that every eccentric cam has a specific function which it carries on during its cycle quite independently of the other to get an idea of how the cam works that's what the purpose of the theory is that controls the first elevator the first cam by means of the vertical lever on a pivotal mount and the longest horizontal lever which runs through the base of the machine transmits the movement of the first elevator every turn of the cam corresponds to a determined movement of the elevator as we see in the close up combination that can make the elevator descend to the vice cap and holds it in casting positions that can next grade is the first elevator to the intermediate channel for the transfer of the outside keating are jacket and provides thermal electric insulation to the crucible that contains the molten type of metal between the kate thing and the crucible there is a cavity stuffed with asbestos  plunger is in the well of the crucible at the front of which there is a mouth when the plunger to send it dries molten metal into the mold against the metrics mine does casting a slug with the letters automatic feeding regulates the descent of the metal pig to maintain a constant level of the molten metal in the the metal part is always kept heated so that it is ready to catch slug each time the mouthpiece moves forward and locks against the back of the mo to avoid constantly changing the liners there are usually thermals mounted on the bit naturally only one of these is pre selected for a given job and must be in vertical position at the right behind the mold is situated the object or whose function it is to expel the slug at the right moment to avoid overheating of the mold in certain models water is made to circulate on the inside of the as we can see in this diagram while in others that same effect is obtained by an air blower in front of the mode there is device brain that can be opened when necessary important parts of the vice the first elevator joy is so arranged as to receive the line of mattresses from the delivery slide and to lower the line between the two by joe but joe at the right is fixed while the one at the left is movable to vertical knives trim the sides of the slope one knife is movable and the other stationary the movable one is adjustable in advance according to the type words and spread out the line the metal part of dancers against the most blocking the mouthpiece tightly against the moat and the math this is the instant in which the plunger injects the molten type metal into the mode under pressure casting the slug with immediately after casting the first elevator carries the line of matt to the second elevator and no the casting operation is completed the distribution operation begin now the line of matt is aligned with the to the bar of the second elevator which has seated on the transfer channel the transfer things are moving the mats toward the right boxes them from the first to the second elevator the mats glide onto the second elevator bar and remain there suspended by their teeth as soon as the transfer has been completed the elevators return immediately to their normal position it should be noted that it is not the function of these groups to keep the mat suspended but only to put them ahead to keep them at suspended up to the moment of their release into the magazine is a function of the distributor on which they glide depended by their combination teeth every mat is therefore supported on the distributor by or by means of their teeth as we can see here for example the mat of the letter o will remain suspended on the bar with the second and third to the combination of the other one however corresponding to the letter in will remain suspended with the fourth magazine channels there are ninety different combinations and consequently an equal number of combinations along the length of the distributor by the match detaching themselves from the bar returned to their respective channels in the magazine those mats which do not run in the magazine have all all of their teeth so that they run the entire link that the distributor and drop into a chute which guides them into a near the keyboard where the operator can select them and insert them as needed in the assembling elevator let's now review the entire procedure at a glance the manipulation of the key releases them ads from in the magazine they'd and side is the jack did into the galley the mats go to the distributor as in all industries technical progress has achieved notable progress in mechanical composition here is that sensational why this machine has been made completely automatic so that it is not necessary to have an operator touch the keep the keys are actuated by a tape perpetrated in code this system known as a teletype setter it's based upon the principles of the teletype used in many newspapers both in europe and in america the ribbon is both perforated by a machine with the keyboard almost like that of a typewriter at every touch of the key code preparations are made on the tape which are lined vertically and numbered from the these two preparations correspond to the letter a letter b has three preparation the letter c also has three preparation but different in position d has to be on the run three preparations for the letter and so its the ribbon is applied to the so called automatic operator situated at the right of the keyboard of the composing machine the reading of the perpetrated tape is accomplished by the automatic it is entrusting to observe how only the small feelers which go through the preparations in the tape transmit the movement to the keys of the composing machine which translates the code without error at the top speed of twenty thousand letters a n hour note that the raising of the assembling elevator is also of one of the numerous composing machines which with increasing rhythm accomplish the important task of preparing composition for newspapers periodicals books and printing of