Patent GB-190215356-A (GB)
Title: Improvements in or relating to Type-setting or Composing Machines.
Inventor: LAGARDE JULES
Filed: 1902-07-09
Granted: 1902-09-18
Abstract: 15,356. Lagarde, J. July 9. Type, setting ; monotype, linotype, and like machines.-Relates to electrical mechanism for operating or controlling composing-machines by means of a perforated strip. The strip may be produced by any suitable means, such as is described in Specification No. 14,388, A.D. 1902. The mechanism is described as combined with the electric contact-board described in Specification No. 14,457, A.D. 1901. Fig. 1 shows the entire apparatus having the inclined electric contact-board 101 with contacts 102 and stylus 97 for operating the composing-machine independently of the strip when the operator desires, as when correcting errors in the strip &c. The strip 100 passes from the feed-spool r through a contact-device 124 &c. to the winding-up spool 153. The contact-device comprises guide and feed rollers 105, 106, 107, 109, 110, 111 and pivoted contact levers or fingers 124 resting on a contactroller 108. The fingers 124 are equal in number to the longitudinal rows of holes in the strip (in the case illustrated, seven), and, when any of the fingers makes contact with the roller 108 through a perforation in the strip, a current flows from the generator 99 through the circuit of the corresponding magnet of a commutating-device 98. The strip is fed in the contact-device by a ratchet 114 operated by a pawl on a lever 116 having an armature 119 co-operating with the magnet 120. When the operator places the stylus 97 on the contact-block 127, the current from the generator flows through the coils of the magnet 120 to a screw 105, and thence through an insulated contact 121 on the armature 119 and back to the generator. The armature lever and screw 105 act as an ordinary trembler under the influence of the magnet 120. The strip is unwound from the inner part of the reel of paper strip. The reel r is held on the horizontal disc 131 by means of angle-pieces 135, adjustable by screws 136 and radial grooves in the disc. Projecting down into the space in the centre of the reel are two rollers 139 on arms 138 pivoted on brackets 137 on the supporting-frame 130. The strip passes over a guide-roller 141 supported by one of the arms 138. The disc 131 is rotated by a ratchet 142 and pawl on the lever 144 co-operating with a magnet 147. The winding-spool is formed of two discs 153 and a barrel portion of the same diameter as the internal diameter of the reel r. This barrel portion is in two sections, one of which is movable and is pressed away from the fixed section by a spring, which spring may be compressed by a cam &c. arrangement to reduce the diameter of the barrel for removal of the roll of strip. The reel 153 is rotated by a ratchet-wheel 174 and a pawl 173 on a weighted lever 172 pivoted on a post 169. The lever has an armature 170 co-operating with an electromagnet 168. The armature 170 has a small coil 171. The lever 172 has a lug 175 which, when the lever is depressed enough by its weight, presses a contact-spring 177 into contact with a screw 178. The current from the generator flows through an arm 179 to the contact-screw 178, and, when the lever 172 L depressed, through the contact-spring 177, coils 171, 168, and thence through the magnet 147 and back to the generator. The feeding-off and winding-up spools are thus operated simultaneously, and are both controlled by the winding of the strip. Fig. 10 shows a plan of the contacts of the commutating- device 98, and Fig. 11 a part sectional elevation. This consists of seven commutators numbered I to VII, the first having two single contacts 191, 192, &c., the next two pairs, the next two sets of four, the next two sets of eight, and so on, as indicated by the numerals 1 to 32 in Fig. 10 Each commutator has an electromagnet 187 which is controlled by the holes in the strip. Above each magnet 187 is an armature 186 on a lever 185 fixed to a bar 183 pivoted at its ends on screw pivots 182. On the bar 183 is a series of spring contactfingers 184, electrically connected with contacts 197 on a bar 196. The contacts 197 are in flexible contact with terminals 195. The fingers 184 on each bar 183 aie adapted to oscillate between two sets of contacts 191, 192, and are normally held in contact with the set 192, but, when the circuit of the magnet 187 is closed, by the perforation in the strip, the bar 183 is rocked and the fingers 184 are placed in contact with the contacts 191. The contacts 191, 192 of each commutator are connected to the terminals 195 of the next commutator, as shown in Fig. 10, except the contacts 191 of the commutator VI, and the contacts 191, 192 of the commutator VII, which control the circuits of the magnets which operate the key levers or parts of the composing-machine. The characters, as represented by these various contacts, are indicated in Fig. 10, and these contacts are electrically connected with the terminals of the electric keyboard 101, by adjustable sets of contact-springs. In order to prevent injury by sparking to the contacts 184, 191, an arrangement is provided whereby the current is broken in the supply wire before the fingers 184 leave the contacts 191.