Patent GB-208838-A (GB)
Title: Type setting or composing machine
IPC: B41B3/00
Filed: 1922-10-13
Abstract: 208,838. Seidemann, A. Oct. 13, 1922. Type-setting machines; keyboards; galley mechanism.-A type-setting machine comprises a number of inclined magazine channels with means for ejecting the type from the upper ends of the channels in a forward direction, an inclined guide-plate common to all the channels and secured to the upper end thereof, and a type galley or composing-channel disposed at the bottom of the guide-plate and at a backward inclination thereto. Means are also provided for locking the keys when the composing-channel has been filled with a set length of type, and a shiftkey mechanism is provided for changing from one fount to another. (i) In a simple form of machine, Fig. 1, the types are ejected by toothed ejector bars 4 from the top of the magazine channels 3, and travel down an inclined guideplate 9 to a common aperture 11 through which they fall backwardly into a detachable composing- channel 12. The lowest type in the composing- channel is supported by a projection 13 secured to a rack 14 which is fed rearwardly by a pawl 16, this operation being performed when a keylever is depressed and at the same time the pawl 6 operates the type ejector 4. The ribs 10, Fig. 2, of the guide-plate are connected by cross strips 19, 20 which together with a lower coverplate 21 are adjustable towards and away from the base of the guide-plate by screws 22, 23. (ii) The means for stripping off the uppermost type may comprise a rail 26, Fig. 3 adapted to be rooked on the depression of a key through rods 29, 30, 33 and pistons 31 having a limited movement in a guide tube 32. The type is pushed upwardly by the ejector pawl 37 and contacts with the forward edge of the rail. When the key is released the rail falls into its vertical position and strips the type. The rail may be angular in form, Fig. 5, the surface 40 acting as a stop and the surface 39, which may be covered with resilient material, acting as a stripper. In another form of stripper the rail is replaced by a roller 41, Fig. 6, provided with radial ribs 42, intermittent actuation being given to the roller by the pawl and ratchet 43, 45 connected with the rod 30 and actuated by the keys. The ribs 42 function both as stops and strippers. In another construction the roller may be provided with a further and larger series of radial members and in this case the intermediate smaller ribs act as stops while the larger members strip off the type. Alternatively the rollers may be of elastic material functioning both as stops and strippers. An additional check may be provided to prevent the ejected type from falling before the movement of the stripper takes place. (iii) The ejected type on reaching the discharge opening 50, Fig. 13, in the guide-plate is pushed into the composing-channel by a pusherrod 51 guided in an elongated slot 54 and connected with all the keys through a lever 53 and spring link 55. Keyboard locking-device. The line limiting- stop in the composing-channel engages a striker 62 carried by a travelling-dog 61 on a rack 59 and when the set position of the dog is reached contact between the stop and striker occurs. The rack is then moved against the spring end 64 of a lever 65 which abuts against a nose 70 carried by a stirrup-lever 68 overhanging the rear end of the keys, thus preventing the normal rise of the stirrup-lever and locking the keys. Fount-changing mechanism. The ejector pawls 37, Fig. 3, have a spring connection with the key-levers 8 and are carried in a comb-ptate 78 which is rocked by a bell-crank 83 connected with the shift-key so that the ejector pawls can engage either of two adjacent ejector racks.