Patent GB-838633-A (GB)
Title: Improvements in and relating to typesetting machines
IPC: B41B7/04
Filed: 1958-02-14
Abstract: 838,633. Type-making &c. machines. SCHNEIDER, J. Feb. 14, 1958 [Feb. 16, 1957], No. 4918/58. Class 100(3) Justifying type. In an apparatus for setting up lines composed of individually cast characters and of ready-made temporary space castings inserted between the words, which temporary space castings are later automatically exchanged for permanent space castings of the correct width, when a key is struck which releases the space cast, a ready-made space casting from a supply is inserted as a gap between words into the line being set up, and at the same time a permanent space casting of the correct width for the previously cast and line is cast, and the temporary space castings of the said line are subsequently replaced respectively by permanent space castings of the correct width and are restored to the supply during the operational cycle. For setting up the first line, on pressing a character key, the mould slide D moves to the left according to the width; the character is cast, the slide L moves up, the slide D to the right and the slide L down, to position the casting in front of an ejector bar C, which moves to the left and moves the casting through an upper cut-out in a transfer plate U and a cut-out in a blocking plate S into a passage R1. This process is repeated until a word is composed, when a space key is pressed, whereupon a shaft 21 rotates through one revolution, and a cam 23 raises the plate U to a position where a lower cut-out therein originally aligned with a passage R2 and containing a temporary space casting, is aligned with the passage R1. A cam 25 moves the bar C to the left, moving the space casting against the character castings in the passage R1, the bar C is restored by a weight 37, and the plate U is restored by a spring. This is repeated until the complete line is in the passage R1. At this time, a chain drive B is urged clockwise by a continuous drive through friction wheels 18, 19, and motion transmitting elements H1 urge a supply of temporary space castings 11 in the passage R2 to the right, to position the leading casting in the cut-out in the plate U, ribs on the castings preventing further motion to the right into a passage K. A chain drive A is also urged clockwise, by a continuous drive through friction wheels 13, 14, and motion transmitting elements ZE engage a movable stop FS which begins against a fixed stop O and moves to the right through a distance equal to the width of a temporary space casting each time the space key is depressed. After a casting 11 has been moved into the passage R1 by the bar C, the plate S is raised by a cam 22 on the shaft 21, and through pins 54, lever 55, rod 57, and lever 50, releases the stop FS for movement along a rack. The left end of the line is engaged by elements ZA in a position dependent on the stop FS and so on the number of spaces in the line. The position of the right end of the line depends therefore on its length without the spaces. An element T is moved by the line just before completion and lights a lamp L1. On pressing a line-changing key a shaft 31 makes one revolution. A cam 34 moves the bar C fully to the left to move the line under the drive A, a horizontal guide R is moved by cams 32, and cams 39 move a guide Q downwards to align a bar J with the passage R2, whereupon a spring 40 advances the bar to move the stock of castings 11 above the drive B. A cam 41 moves a lever 17 clockwise to reverse the movement of the drive B, whereupon elements H2 move the castings 11 to the left beyond the junction of passages R1, R2. The cam 41 also releases. the stop FS, which is. moved fully to the right by the elements ZE, which go on to move the line to the left and into the passage R2, pushing further the castings 11, thus striking the lever 17 and again reversing the drive B. A gate W closes behind the line. Elements H2 now move the line to the right in passage R2, and elements H1 move the stock of castings 11 behind it. The line is thus pushed into the passage K until the first casting 11 thereon is stopped by its ribs in the lower cut-out of the plate U,. for use as above described. As each casting 11 is transferred upwards, when the plate U is restored, the completed line is free to move further to the right until the next casting 11 reaches the plate U. Meanwhile, the cams 22, 23, 25 act when the space key is depressed in setting the next line, raise the plate U, move the bar C to push out the casting 11, raise the plate S, and move the bar C a second time to move a permanent space casting, which has meanwhile been cast in the mould to the correct width according to the distance between the measuring feeler M and a projection N on the bar C, into the cut-out, the plate S preventing its entry into the passage R1. The plate U then lowers the permanent casting into position in the first line. When the first line is fully into the passage K, it causes a lamp L2 to light. If the upper line requires more spaces after the lamp L2 lights, the mechanism for casting permanent space castings is disconnected while the upper line is finished. If the lower line requires more spaces. after the lamp L1 lights, further operation of the space key will cause extra castings 11 to be pushed into the passage R1 behind the line therein. The elements ZE do not act on the castings 11, which are thus eventually pushed by the next line into the passage R2 to join the remaining stock. When' a line is in the passage K the descent of the guide Q as described above moves it down into the galley Sch.