Patent GB-190722406-A (GB)
Title: Improvements in or relating to Machines for Making or Preparing Record Strips or Controllers for Composing and like Machines.
Filed: 1907-10-10
Granted: 1908-10-08
Abstract: 22,406. Lanston Monotype Corporation, [Lanston Monotype Machine Co.]. Oct. 10. Type, setting ; typewriters; stereotype-matrix machines; linotype. machines.-Relates to machines:of the kind described in Specification No. 18,638, A.D. 1899, for making record strips for controlling type and matrix making, type - setting, typewriting, linotype, and other machines, and particularly to means for automatically selecting the justifying-signals for the line which are formed by depression of the resetting-key. In order to avoid short lines, the justifying-mechanism is locked out of action until the line is long enough to be properly justified. Long lines are avoided by automatic actuation of the justifying-mechanism when the line is nearly full. The character punches are locked out of action during the operation of the justifying-mechanism. The selection of the justifying- punches is effected by a right-angled triangle, of which the inclination of the hypotenuse varies with the amount of space to be filled, and the length of the perpendicular with the number of word-spaces in the line. The length of the base determines the selection of the punches. The hypotenuse of the triangle is formed by a pivoted bar 40, Fig. 3, which is engaged by a knife-edge 45 on a rack-bar 44. A pinion on a shaft 6 engages the rack-bar and is connected with the line-measuring device when the justification-area is reached. The base of the triangle is represented by a double knife-edge 41 carried by a block 47 which can move in guides in a block 49. The motion of the block 49 in a direction at right-angles to the line of motion of the block 47 is limited by a pivoted bar 51 which engages a knife-edge 53 on the block 49. The bar 51 is engaged by a knife-edge 58 on a rack-bar 59, which is advanced at every depression of the spacekey. The perpendicular of the triangle is thereby reduced to one-half, one-third, one-quarter, &c. of its original value as successive word - spaces are included in the line. The amount to be added to each space is determined by a straight-edge 42 on a bar 63 which moves the knife-edge 41 into contact with the bar 40. Beneath the bar 63 are fifteen pivoted selectors 65 corresponding to the fifteen degrees of adjustment of the first justifying-wedge. A notch 67 in the bar 63 permits the rise of the selector which registers with the notch. The selectors are connected to a series of piston valves 70, Fig. 25, each of which serves to connect an air supply pipe 72 with one of the punch-actuating cylinders. Air is simultaneously admitted by a pipe 77 to the cylinder 76 of the justifying-wedge designating-punch, that is that representing increments of À0075 of an inch. The bar 63 is connected by a rack and a pinion 81 with a notched wheel, with which co - operates a second set of selectors having piston valves 91. The valves 91 serve to connect the punch-cylinders with a supply pipe 92, which is also connected by a pipe 96 with the cylinder 95 of the second justifying- wedge, that is that representing increments of À0005 of an inch. The bar 63 is advanced by a lever 108 connected to a spring-retracted piston 110 working in an air-cylinder. A brake 105 for the block 49 is connected by a lever 106 and link 107 to the lever 108. The block 49 is advanced by a lever 56 and a spring-pressed piston 104. The rack-bar 59 is advanced by a pawl 62 actuated by the piston of a cylinder 100, to which air is admitted upon each depression of the space-key. A piston 102 serves to release the pawl 62 and a detent 99 at the end of the line. The rack-bar is finally adjusted by means of notches 60 which are engaged by a plunger carried by a spring-retracted piston 97. A rotary valve 115, Fig. 25, admits air in succession to the two pipes 72, 92 which cause the formation of the two justifying-signals, and to a third pipe 118 connected to a cylinder 119 which re-sets the line - measuring mechanism. The valve 115 is rotated by a pinion and rack actuated by a piston 126, the motion of which is retarded by a governing-cylinder 129. Air is admitted to the piston 126 and to the valve 115 by a second rotary valve 132, which is rotated by a piston 145 to which air is admitted by depression of the resetting-key 11. The valve 132 also controls the admission of air to the pistons 97, 110. The formation of short lines is prevented by a pivoted arm 152, Fig. 3, which rests in the path of the piston 145 until released by the advance of the rack-bar 44. To prevent the formation of long lines, the valve 132 is rotated by a spring-pressed piston which is released by a pivoted arm 156 in the path of the bar 40 when the space remaining in the line is less than the width of the largest type. The rotation of the valve 132 interposes a lock in the path of the punch-bar levers, the lock being removed to permit of the actuation of the justification signals by cylinders 172 connected to the air-supply pipes of the punch-cylinders 76, 95. The piston 145, when advanced, is locked by a pawl which is tripped, to permit of the return of the valve 132, by a piston 176. The admission of air to the pistons 102, 104, 176 is controlled by a valve 186 which is actuated by the line-scale rack when the latter returns to initial position. Specification No. 8633, A.D. 1899, is referred to.