Patent GB-190518058-A (GB)
Title: Improvements in Type-writing Machines.
Inventor: SCHIESARI MARIO
Filed: 1905-09-06
Granted: 1906-09-06
Abstract: 18,058. Schiesari, M. Sept. 6. Typewriters.-Relates to typewriters for printing simultaneously the letters of syllables up to six letters. Twenty keys are used, each bearing three characters which are so disposed that any syllable can be composed in passing from left to right of the keyboard, and so that all the letters forming a syllable will be found in one line of keys. The keys are carried by levers 4 connected by links 6 with levers 7 which are mounted to swing laterally as well as vertically. The levers 7 are connected by links 12 with type-bars 13, and by links 14 with cams 15, pivoted to suspension bars 16 and provided with retracting-springs 17. The type-bars are pivoted to arms 20 on the suspension bars 16, which are pivoted at their upper ends so as to be capable of lateral oscillation., When the type-bars descend, pins 25 on their ends enter slots in a guide-plate 101, Fig. 7, to ensure alinement. When a key is depressed, the corresponding cam 15 displaces laterally the bar 16 next to it and all the succeeding bars against the action of a spring. - The degree of motion thus transmitted to the last suspension bar 35 is proportional to the number of letters in the syllable, and by this amount the paper-carriage is advanced. The carriage is driven by a spring drum 52 which is wound up by means of a key or a cord and pedal. The drum is geared with a spur-wheel 61, with which can engage either of two racks 105, 106, Fig. 1, on the carriage, one for advancing and the other for returning the carriage. Formed in one with the rack 106 is a feed-rack 45 which is engaged by a fixed pawl 43 and a laterally-movable pawl 44, both of which can be rocked vertically by an arm 42 on a shaft 39 which carries by means of arms 46 a universal bar 47 passing beneath the levers 7. The degree of lateral motion of the pawl 44 is determined by levers 50, 51, connected with the last suspension bar 35. The racks 105, 106 are connected at their ends to form a frame which is connected to the papercarriage by links 62 and elbow-levers 63 so that it can move transversely to place either rack in gear with the wheel 61. The levers 63 are connected by a rod 64 carrying a block 65 which can contact with stops 66, 67 on the frame. The distance apart of the stops is adjusted by means of a screw 68. At the end of a line, the block 65 meets the stop 66, whereby the rack-frame is rocked and the rack 106 is brought into gear with the wheel 61. The carriage then moves back to the starting-point under the action of the spring drum. When the block 65 meets the stop 67, the rack 105 is moved into gear with the wheel 61 and the feed-rack 45 into gear with the pawls. To effect spacing between the words, two of the character keys are so connected that, when both are depressed together, the type-bars are not actuated sufficiently to print but the suspension bar 35 is rocked so as to advance the carriage. The paper-carriage, Fig. 7, consists of a lower frame 102, sliding on guides 74, the ends of which are hinged and may be turned back to increase the travel of the carriage. An upper frame 31 bearing the platen moves transversely on wheels 76 for case-shift. This is effected against the action of a spring 70 by a lever 30, connected by a link 29 with a lever 27 having a key 3, the motion of which is arrested by a stop 34. Pivoted to the lever 27 is a spring-pressed key 2 which, when depressed, meets a stop 33 and places the carriage in an intermediate position. The paper passes from a drum 71 over a p'aten roller 72 on to a drum 73, which is advanced by a ratchet-wheel and a pawl, an arm on which is engaged at the end of a line by an adjustable stop on the frame. The paper-carriage may have a single drum forming the platen, and a pocket to receive the paper. The inking-mechaniam comprises two spools and a guide which is normally raised by a balance weight and is lowered at the moment of printing by a lever actuated by the universal bar 47. Either of the spools is rotated by one of two pawls on a sliding bar which moves under the action of a spring when allowed to do so by the motion of the suspension bar 35. The sliding bar is moved to reverse the feed by a frame operated by hand.