Patent GB-190222653-A (GB)
Title: Improvements in or relating to Means or Apparatus for Operating or Controlling Type Writing and Type Setting Mechanism by Means of Perforated Tape.
Inventor: CREED FREDERICK GEORGE
Filed: 1902-10-17
Granted: 1903-10-15
Abstract: 22,653. Creed, F. G., and Coulson, W. A. Oct. 17. Type - writers and like machines; type, setting.- Relates to apparatus for controlling type-writing and type-setting machines employed for translating, or reproducing in ordinary printed characters, telegraphic or other messages represented, in the Wheatstone - Morse or other system, by perforations in a tape. The longitudinally - movable combs a, employed for actuating the key levers of the type-writing or type-setting machine, and the mechanism between these combs and the key levers, may be of any known construction. A series of bars 42 extend across the combs, and are kept parallel to one another by a pair of combs 43. The bars 42 are pulled downwards by springs, and when the combs have been moved by blank parts of the perforated strip b, so that some of the recesses in the combs come opposite one another so as to form an uninterrupted passage, the particular bar 42, corresponding to the letter to be translated, falls into the said recesses and into the path of an oscillating bar 53. The strip b passes through a guide e, which may be carried by a plate reciprocated by means of a cam on the main shaft m. The strip is fed forwards by a feed-wheel n having pins engaging with a central series of apertures in the strip ; this wheel is driven in one direction only by a segmental toothed arm o engaging with a toothed wheel on the feed-shaft, which carries a ratchet or clutch mechanism for transmitting motion to the feedwheel. The arm o is mounted on a shaft u rotated by means of a rack 1, spring-controlled feed-lever 5, and a cam on the shaft m. The extent of feed of the strip b is regulated, in accordance with the widths of the letters, by means of a selecting-mechanism comprising two series of longitudinallymovable bars 22, the inner rounded ends of which pass through apertures in the guide e, while the outer ends engage with the inner ends of a series of stop-rods r. For each stop-rod there are two bars 22, an upper and a lower one. Springs 26 tend to pull the bars 22 inwards, and springs 21 tend to pull the rods r outwards and across a guideway 17, in which travels a rack-bar q engaging with a segmental toothed arm p on the shaft u. As the lengths of the letters may vary, means are provided for forcing back all the combs corresponding to the portion of the strip b following that representing the letter which is being translated. These means comprise a shutter or plate 30, which may be controlled from the tape-feed mechanism by means of a rack 31, so as to move backwards simultaneously and to an equal extent with the bar q. To prevent backward movement of the feed-wheel n during the idle stroke of the arms o, p, the wheel n may be locked by means of a tooth engaging with a wheel fixed to the wheel n, or by means of a roller 34 which engages with the pins on the wheel. During the operation of the machine, when a portion of the tape b representing a letter to be translated has been fed forwards between the combs a on one side and the bars 22 on the other, the guide e is moved laterally towards pins 23 projecting from the ends of the bars 22 ; consequently, those bars the pins of which register with the letter perforations in the strip will remain stationary, and the other bars will be moved outwards by the imperforate part of the strip. The corresponding stop-rod at once springs across the guideway 17. Next, the feed-lever 5 is actuated by its cam, and causes the arms o, p to oscillate idly with respect to the feed-wheel n, but effectively so as to carry the bar q into the guideway until stopped by the above-mentioned stoprod. The guide e and the shutter 30 are moved towards pins c, d projecting from the combs a, so that all those which are opposite blank spaces in the letter strip, and are opposite the shutter, are displaced. The type-writing or type-setting machine is then controlled by means of the combs in their adjusted positions.