Patent GB-202066-A (GB)
Title: Improvements in and relating to manifolding attachments for typewriting machines
IPC: B41J15/02
Filed: 1922-05-18
Abstract: 202,066. Marsh, C. W. May 18, 1922. Web feeding and guiding arrangements; papercarriages and supports.-A typewriter-attachment for use in filling-in and manifolding forms, e.g. insurance policies, comprises a carrier adapted to be readily mounted on a carriage, and provided with a platen, reels for supporting webs consisting of a number of identical forms, and, in some cases ink-ribbons; a carrier may be provided for each class of form, and the carriers may be mounted in a movable holder adapted to bring the selected holder into position adjacent to the carriage. A carriage, consisting of side bars 41, Fig. 6, and cross-bars 42, 43, runs on rails 32, 33 secured to brackets 31 on the framework 25 of the typewriter, the carriage being associated with the usual letter-spacing mechanism. A carrier 48, supporting reels 55 and a platen-bar 54, is provided with lugs 60, Fig. 10, and rollers 59 for engaging bottom and top of flanges 62 on the side bars 41. The platen-bar is mounted in a channelled support secured to brackets 92, Fig. 21, on the carrier. In mounting the carrier, the lugs are dropped through notches in the flanges 62. and the carrier is then pushed forward to bring the platen to the printing-point. In the forward position, a lug 66, Fig. 10, on the carrier abuts on a stud 65 on the bar 43, and a spring- urged latch 67 on the bar 41 engages a lug 70 on the carrier. The latch is released by raising the finger-piece 73 of a lever 71. To guide the carrier into position on the carriage, the bars 41 may have flared walls 63, Fig. 6, and one of the walls may have flared flanges 64 for receiving one of the lugs 60. Stops consisting of a lug 75, Fig. 12, on the carrier, and a tapered flange 74 on the rail 33, may be provided for preventing insertion or removal of the carrier unless the carriage is in line-commencing position. The stops serve also to prevent movement of the carriage until the carrier has been moved to its proper position on the carriage. When the empty carriage is in line-commencing position, a spring-urged latch thereon engages a notch in the rail 32, the latch being released by one of the rollers 59 when the carrier is inserted. The reels 55 are each supported on a spindle 82, Fig. 19, formed at the ends with a projection 83 and a flat 84 entering an aperture and a notch in the walls of the carrier. The spindle is provided with a hub 85, frictionally coupled by means of a spring 86, and a hub 87 having a wedge 88 entering a notch in the reel. The hub 87 is retained by a collar 89, and is adjustable laterally to engage reels of different, sizes. The webs 56 are guided over the platen 54 by means of guides 94, Fig. 21, and rollers 93, and thence pass between feed-rollers 96, 97 and guides 113, 114, the rollers having pinions normally in mesh. The guide 114 is formed with a tearing-edge. The roller 97 is reduced to form feed-discs 112 between which is arranged the guide 113. The feed-roller 96 is mounted on arms 98, Fig. 17, connected to springs 101, the tension being adjusted by means of screws 103 carried by saddles 102. The webs are fed by turning knobs 106, Fig. 10, on the feed-roller 97, the spacing movement being determined by means of a detent engaging a toothed wheel on the feed-roller. The webs can be rewound on the reels by turning backwards the knobs 106. For this purpose, the hubs 85 of the reels are formed with worm-wheels 123, Fig. 17, engaging worms 122 on a shaft 112 provided also with a worm 117 engaging a worm-wheel coupled to the feed-roller 97 by means of a one-way clutch, which is normally ineffective, but couples the worm-wheel when the knobs 106 are turned backwards. The feed-roller 96 can be raised, to permit adjustment of the webs. by means of cams on a shaft 104, operated by a finger-piece 105, Fig. 10. When the feed-roller 96 is raised the shaft 118 is tilted to disengage the worms 122. The shaft can rock on one of the brackets 92, and is supported at the rear by a slide 119, Fig. 17, engaging a spring cam 125 on a slide 124 provided with lugs 127, 128 co-operating with an arm 129 on the rock-shaft 104. When the fingerpiece 105 is operated, the slide 124 is pushed backwards, and the cam 125 permits the slide 119 to drop. A number of carriers 48 may be mounted on a vertically-movable holder 170, Fig. 1, housed in a cabinet 164 which may be provided with a shelf 165 for supporting the typewriter. The holder consists of horizontal rails 182 secured to uprights 167, which are guided on uprights 166 in the cabinet and are connected by chains 173 to balance-weights 171. The carriers are supported on the rails 182, and the holder is moved by means of a hand-lever 177, to bring to the level of the side bars 41 of the carriage the rails that support the selected carrier. A detent 185, releasable by means of a pedal 187, engages notches in one of the uprights 167 to retain the holder in set position. The rails have stops 183 and spring-urged latches 193 for retaining the carriers by engaging the rear rollers 59 and the lugs 60 respectively, the selected carrier being released by engagement of the associated latch 193 with a stationary cam 196. To prevent movement of the holder when a carrier is projecting from the holder, a number of levers supported on one of the uprights 167 have projections in the path of the carriers and are connected by a link to a dog adapted to engage a. notch in one of the uprights 166. On moving forward any one of the carriers, the associated lever rocks, and the dog is moved into engagement with the notch to prevent movement of the holder. Paper-shields.-Longitudinal strips 163, Fig. 21, arranged over the webs, are secured at the ends to plates 161 having lugs received by apertures in the brackets 92. The strips preferably consist of slightly-elastic textile material. Carriage-returning mechanism.-The carriage 41, Fig. 6, is provided with a plate 46 to which the palm is applied in returning the carriage. Ink-ribbon mechanism.-Ribbons 57, Fig. 10, of carbon paper, arranged between the webs 56 and parallel to the platen bar 54, are wound on studs 130 on the carrier 48, and pass to feedrollers 141, 142, Fig. 12, mounted on the carrier. The studs have flats engaging slots 131, Fig. 17, in the carrier, and support spring-pressed brake discs 132. Guides 135 - - 137 are provided for directing the ribbons. The pivot 143 of the feedroller 142 is mounted eccentrically, and can be turned by means of a finger-piece 144 to separate the feed-rollers. The feed-roller 141 has freewheel connection with a pinion 145 engaging a rack 148 connected to a lever 152 which is provided with a pin 154 co-operating with the flange 74 on the rail 33, the arrangement being operative to turn the feed-roller when the papercarriage is returned. During the letter-spacing movement of the paper-carriage, the rack is returned by means of a spring 150. To permit adjustment of the feed-movement, the pivot 153 of the lever 152 engages a slot 155 in the lever, and is mounted on an adjustable slide 156. The feed-roller 141 can be operated also by means of a knob.