Patent GB-108925-A (GB)
Title: Improvements in Ruling Machines.
Inventor: LINDBLADH HARMON ERIC
IPC: B41G3/00
Filed: 1916-09-22
Abstract: 108,925. Lindbladh, H. E. Sept. 22, 1916. Ruling-machines. - (1) Ruling-pens on one or more rocking beams are controlled independently by levers which are approximately the same width as the pens and are actuated in selected groups by groups of actuating-arms, the controlling-levers and the actuating-arms being movable independently to permit each controlling-lever to be operated by actuating-arms from more than one group. The arrangement enables the pens to be set close together and to be controlled for ruling complicated forms. As shown, three beams 91, 163, 164 are provided, the beams 91, 163 being associated with controlling-levers 129, 167. The levers 129 may rock on separate collars 133, Fig. 8, feathered on a shaft 122 and provided with flanges engaging the hubs of the levers, the collars preventing the levers from swaying. The collars are adjustable along the shaft 122 and are secured by screws 138. The levers are formed with arms 130, 132 for engaging the pens and one or more actuating-arms 173 respectively, the arms being mounted in groups on shafts 171. The initial angular position of each arm 130 is determined by means of a wedge 146 arranged between a bracket 155 on the arm 132 and an arm 142 secured to the collar. The wedge can slide on the bracket and is engaged by an adjusting-screw 158. An adjustable spring 147, arranged between the arm 132 and a screw 150 on the collar, tends to raise the arm 132. The actuating-arms 173 are adjustable along the shafts 171 and are secured by screws 172. To permit of adjustment of a group of arms on one shaft without interference from the groups of arms on the other shafts, the parts 174, 175 of the arms are arranged in different horizontal and vertical planes from shaft to shaft. The ends of the arms 175 rest in grooves in the arms 132 of the levers 129. The shafts 171 are each connected to an arm 177 provided with a roller 181 in the path of cams 184 on a wheel 183. The cams may consist of plates which are mounted in peripheral grooves in the wheel and are secured by screws 185. The arms 177 are each secured by a screw 178 to a rod 179 secured to ears on the shaft 171, the rollers 181 each being mounted on an extension 187, Fig. 4, pivoted at 188 and secured in adjusted position by a screw 190 passing through a slot. The adjustment of the cams 184 determines the time of engagement of the pens, and the adjustment of the arms 177 enables the lift of the pens to be adjusted individually. Springs 191, connected to arms 193 on the rods 179, draw the rollers 181 downwards, the movement of the arms being limited by pins 194 having rubber sleeves. The levers 167 are mounted on a shaft 168 in the same manner as the levers 129 and are actuated from the cams 184 by levers 209 and arms 205 on shafts 204. The beams 91, 163, 164 can be rocked by levers 162, 165, 166 which engage arms 114 on the beams and are actuated by cam-levers 196, 197, 198. The beams may be held in the raised position by turning latches 117, Figs. 1 and 4, under screws 115 on the arms. The beam 163 may be actuated by a cam-lever 225 and a trip-device 218, Fig. 4, arranged so that the beam, after a rapid lift, is released from the control of the cam-lever and can drop quickly on to the paper, the arrangement permitting very short breaks to be made in the lines. The arm 114 of the beam supports a slide 217 formed with a projection 218 for engaging a projection 228 on a lever 225 operated through a lever by one of the cams 184. The normal position of the slide, and consequently the lift of the beam, is adjusted by a nut 222 on a screw 220 passing through a lug on the arm 114, a spring 224 being arranged between the lug and the projection 218. Each beam is provided with a clamp for the pens and is connected by the usual universal joints 102 to spindles 95, 96, Fig. 1, bearing in slides 97 which are vertically adjustable in standards 90 supported for horizontal adjustment in guides 99. The spindles 95 are threaded and are turned by knobs 106 to adjust the beams longitudinally. The pens are pressed against a paper by adjustable springs 109 on the spindles 96, each spring being secured at one end to one of the slides 97, and at the other end to an adjustable collar. To steady the beam, the spindles 96 are each provided with a brake, shown as consisting of a split collar 118 which can be tightened by a screw 119. (2) The sheets are fed, by means comprising belts 41, 67, Fig. 23, and strings 54, 64, from a feed-table 30 to a box 31. The belt 41 passes over a table 46 adjustable vertically by screws 48. The strings are guided by grooved pulleys 59, 66 journaled on brackets 60, which can be adjusted laterally on bars 62 and are secured by screws 63. The strings are pressed against the belt by a roller 55 journaled in vertically adjustable bearings 56. The gate for controlling the feed of the sheets consists of a rock-shaft which carries adjustable fingers 77, Fig. 4, and is actuated by a cam-lever 84. The rock-shaft is journaled at each end in a plate 78 secured to a bracket 80 by a bolt passing through a slot 70, the arrangement permitting of lateral adjustment of the rock-shaft.