Patent GB-211969-A (GB)
Title: Improvements in or relating to multi-magazine supporting and adjusting means for typographical composing machines
IPC: B41B11/06
Filed: 1922-12-01
Abstract: 211,969. Linotype & Machinery, Ltd., (Mergenthaler Setzmaschinen-Fabrik Ges.). Dec. 1, 1922. Magazine and escapements.-In tvpe-barmaking machines in which a column of rigidly connected superposed magazines is movable in a direction perpendicular to the magazine channels, the column is pivotally supported about an axis located in a vertical plane passing through the centre of gravity of the column. In one construction, shown in Figs. 1 and 3, the column is provided with a cross-bar 8 upon which is pivoted a triangular link 9 carrying rollers 11 bearing upon guide rails 12. The link 9 is connected by levers 14, 15 to a shaft 16 secured to which is a bent arm 17 carrying a sprocket-wheel 44. A chain 18 passes under this sprocket-wheel and over a second sprocket-wheel 19, and is attached to the machine frame by a hook 45 and to counterbalancing springs 21 by a T-piece 20, the upper ends of the springs being carried by aT-piece 22. The sprocket-wheel 19 is rigidly connected with a worm-wheel 23 operated by a worm 24 to vary the tension in the springs, which together with the variable turning moment of the bent lever 17 provide a correct counterbalance for the magazine column in all positions. The column is mounted in a frame 90 pivoted about an axis 25, the frame carrying racks 26, 27 for engagement by spurs 28, 29 on the magazine column,. rollers 36, 89 guiding the column in its rectilinear movement. Other rollers are provided on the machine frame for preventing lateral movement of the column. A disc 39 provided with one or more notches engaged by a lever 40 locks the column against movement. During the pivotal and rectilinear movements -of the column the escapement-operating rods 61 are arranged to be moved towards and away from the escapement mechanism. The rods are guided in a comb 62 mounted on a two-armed lever 63 pivoted at 64, one arm being connected by a link 65 to a threearmed lever 67 which is connected to the lever 63 by a spring 68 tending to move the escapement rods towards the magazine and keeping a roller 69 on the lever 67 in contact with a cam 70 carried on a shaft 55, which is operated by the crank 54 for rocking the magazine in its pivotal movement through an eccentric 59. When the column is moved in a rectilinear direction the locking-lever 40 is disengaged from the disc 39 and a roller 75 presses a bail 74 and turns a shaft 72, a curved arm 73 on the shaft 72 rocking the escapement rods through a roller 71 carried by an arm of the lever 63. The magazine entrances comprise two portions 48 - - 51, one portion of each entrance being carried by the frame 90, the meeting-surfaces of the portions 48, 50, 49, 51 being arcual with the pivot 25 as centre. In another construction, shown in Fig. 8, the column is supported on trunnions 76 carried by a U-shaped frame 77, 78, the member 78 being supported on rods 79 slidable in guides 80 capable of rocking in footstep bearings 82, springs 81 counterbalancing the weight of the columns. The operating arrangements for sliding and pivoting the column in this construction may be similar to those described above.