Patent GB-126465-A (GB)
Title: Improvements in Typographical Composing Machines.
IPC: B41B11/06
Filed: 1918-05-10
Abstract: 126,465. Linotype & Machinery, Ltd., George, C. L., and Hart, H. May 10, 1918. Magazines and escapements for type-bar-making machines. In a machine provided with a column of magazines, one or more of the lower magazines are provided with an underframe which can be slid forward to permit of removal of the magazine without raising or disturbing the other magazines. The magazine with the underframe and support forms a unit which can be added to or removed from the column. The invention can be applied to arrangements in which the escapements are removable with the magazines, or, as shown, are separable from the magazines. In the arrangement shown, three magazines 11, 12, 13 are supported by a frame, built up from side walls or supports 18, 25 and a base 26 which are united by bolts 24 and are alined by dowels 28, the walls 18 being connected by bolts 21, 22. The frame is guided by rollers 27, Fig. 1, and rails 34 and is shifted by toggles 29 in the usual manner; or, the frame may be stationary and be associated with adjustable assembler entrances. The top magazine 11 can be removed in the usual manner by operating cams 14, Fig. 1, adapted to lift the magazine into a position in which the magazine is unobstructed by the escapements 23, these being mounted on the walls 18 of the frame. The magazines 12, 13 are each provided with an underframe 37 which can slide on tracks 36, Fig. 3, formed on the walls 18, 25, each magazine and underframe being associated with the following devices, which are described with reference to the magazine 12. The bank of escapements 41 for the magazine is mounted on blocks 39, 40 which are pivoted on a shaft 38 carried by the underframe 37. The blocks normally rest on the tracks 36 but when the underframe slides forward, the blocks drop into the position shown in Fig. 4 and carry the escapements out of engagement with the magazine, thus enabling the magazine to be drawn forward without interference. The movement of the blocks is limited by the engagement of the tracks with inclines 42 on the blocks. To permit of the escapements adjusting themselves to the magazines, the bank of escapements is mounted on trunnions 44 in the blocks, and on being released receives from springs 47 a slight rocking movement. The movement is limited by the engagement of a stop 51 on the bank with a stop 52 on the block 40, the stops being normally just out of contact. To ensure close engagement of the escapements with the magazine, the bank is arranged at such a height that the front end of the magazine is slightly raised above the underframe and is supported by the bank. The shaft 38 passes through slots 53 in the walls, the projecting ends, which may be provided with loose ferrules 54, serving as handles. The underframe is locked in the normal or the forward position by the engagement of bolts 57 with recesses 59. The bolts are released by hand-levers 56. The magazine is prevented from sliding forward on the underframe by the engagement of sliding bolts 60 on the underframe with a bar 61 on the magazine, the arrangement enabling the magazine to be released without being raised. The bolts are connected to lovers 62, Fig. 2, engaging eccentrics 64 on the shaft 38 which can be rocked bv a hand-lever 66 to raise or lower the bolts. The bolts are held in the set position by the engagement of spring-pins 67 with notches. A stop 68, on the wall 18, prevents the hand-lever 66 from being operated until the underframe has been drawn forward. To prevent the escapements from being separated from the magazine before the matrices are locked, the block 39 is provided with a spring bolt 71, Fig. 2, which normally engages the slot 53 or a special recces and is engaged by the forked end of a lever 75, in the path of the matrix-locking strip 70. The bolt is released when the strip 70 is pushed into the locking position. The lever 75 is pivoted on a bracket 73 which can rock on a stud 72 on the block 39 and is held in the normal position by a spring 80, which maintains a pin 79, Fig. 4, on the bracket in engagement with a stop 82 on the track 36. When the underframe is moved forwards, the spring 80 causes the bracket and the lever to. be rocked below the path by which the magazine is removed. The bolt 71 may operate a device, such as a lever 86, Fig. 2, controlling a latch 85, for preventing the adjacent bolt 57 from being released until the strip 70 is in locking position. The walls 18, 25 are formed with recesses 88, normally in register with the magazine channels 78 for the strip 70. Cushioning-springs 89 are arranged between lugs 91, 92 on the underframe and the tracks 36. The magazines are received, while being removed, by brackets 83, Fig. 4, which can be hooked under studs 84, on the walls, and over the shaft 38. In a modification, the engagement and disengagement of the pivoted escapement banks is effected manually. The usual engaging projections may be used for preventing the magazines from sliding forward on the underframe, in which case the space between the magazines is increased to provide room for raising the magazines to disengage the projections.