Патент USA US2112308код для вставки
March 29,1938. R D, SALMON TRANSLATING MECHANISM Filed July 27, 1955 ‘ 2,112,308 7 2,112,308 Patented Mar. 29, 1938 UNITED STATES PATENT OFFiCE 2,112,308 TRAN SLATING MECHANISM Croydon, England, as Reginald Dennis Salmon, Company Limited, Grey signer to Creed and don, England Serial No. 33,545 Application July 27, 1935, August 23, 1934 In Great Britain 2 Claims. (Cl. 178-341) the following description taken in conjunction This invention relates to translating mecha with the accompanying drawing in which nism for printing, recording, registering and like Fig. 1 shows a side elevation of one unit of a apparatus and more particularly to mechanism translating mechanism according to the inven . for selecting individual characters from a bank tion; 5 of characters as a result of the movements of a Fig. 2 is a plan view of several units of the number of members each moved according to an mechanism showing how they are interconnected, element of the code representing the character. and Devices of this kind are known in which the Fig. 3 shows one manner in which the trans resultant motion of the character selecting lating mechanism may be actuated. Referring to Figs. 1 and 2, a bar l is adapted by 10 mechanism is the aggregate of the motion caused by all the members, and in particular it is known its movement to right or left to move a forked to use a series of cords passing over pulleys, in such a way that the movement of each cord is detent lever 22. In the translating mechanism as transmitted in diiferent ratio to a typewheel. applied to selecting a character according to its representation on a ?ve unit code, there will be 15 In this arrangement, however, each cord was movedby a separate magnet. ?ve bars such as i, each actuating a forked de tent lever such as 2. The five bars may be It is an object of the invention to provide means whereby the motion of each member shall moved in various combinations by depressing a be imparted in a positive and effective manner, key of a keyboard. In a type printing receiver the ?ve bars 5 may be moved in the same man 20 and whereby the character selecting mechanism ner as the ?ve notched combination bars or due magni?cation of movement, and in such a way that the moving parts are accelerated and brought to rest with a minimum of shock, so that the machine shall be as silent as possible in notches in such bars or combs are aligned to select a type lever for striking against the paper or for stopping a continuously rotating type 20 may be moved the required amount without un 25 operation. It is another object of the invention to a practical form of aggregate motion using the movement of belts passing over that shall be compact and adapted to provide device, pulleys, modern requirements in teleprinters and the like. According to one feature of the invention I 35 combs in type printing mechanism in which wheel in printing position. Mechanism for set ting such bars successively in accordance with the response of a single magnet to received sig nals is well known. Each detent lever cooperates with a disc 3, 3’ or 3” carrying a pin Ii, 4' or i". The disc tends to be driven through a friction clutch from a provide translating mechanism of the kind re continuously rotating shaft but is prevented from moving by the detent lever in the position shown. ferred to in which the movement of a character selecting mechanism is the aggregate of a series When the bar I is moved to the right the disc 3 of separate movements transferred from the tion when it is again arrested. Subsequent movement of the bar I to the left would again movements of a plurality of members set in suc cession by the response of a single magnet to received signals by means of a corresponding 40 series of belts and pulleys, each belt passing over a pulley and transferring its movement to the next belt and the movement of the last belt being transferred to the character selecting mechanism. According to another feature of the invention I provide translating mechanism of the kind is released so as to move through half a revolu release the disc 3 for a second half revolution. To the pin 4 is attached one end of a belt 5 in 40 the form of a steel tape which passes over a pulley 6. The other end of the steel tape is attached to a pin 1. On the same spindle as the pulley 6 is a grooved wheel it which slides in a slot in a ?xed frame I2. The spindle of the grooved wheel ill and pulley t is ?xed to a frame 8 to which is also ?xed a second grooved wheel I i also sliding in the slot in the frame H2. The referred to in which the ends of a plurality of belts passing over pulleys are attached to mem frame 8 is under the action of the belt 5 and a bers, each released for movement through a spring I3 is ?xed at one end to the sliding frame given distance by power driven means in accord ‘ 8 and at the other to the ?xed frame I2. A ance with the elements to be translated in such rack 9 is ?xed to the frame 8 and meshes with a a manner that the movement of a character se gear wheel M on the spindle of which is ?xed a lecting mechanism is the aggregation of the movement given to all the belts. The invention will be better understood from type wheel Hi. When the detent 2 is moved from the position 55 2 2,112,308 shown the crank pin 4 rotates through half a revolution and the pulley 6 and frame 8 move through half the throw of the pin 4. This move ment is communicated to the type wheel I5, the gearing being such that the type wheel also makes half a revolution. The belts 5' and 5" attached to crank pins 4' and 13" respectively pass over pulleys 6' and 6" and are attached to pins 1' and 1" respectively. 10 The pin ‘l to which belt 5 is attached is mounted on the frame 8’ carrying the pulley 6'. The pin 7' to which the belt 5' is attached is mounted on the frame 8" carrying the pulley 6". When crank pin 4’ is given half a revolution, 15 the frame 8' moves through the same distance as the diameter of disc 3’, and pin 1 moves through half this distance. The frame 8 then moves through half the movement of pin 7 and type wheel i5 is given a quarter revolution. 20 Thus there is a 2: 1 step down between the move ment of a crank pin and the movement trans mitted to the next unit. By placing the pins 7, 1', etc. on moveable frames carrying the pulleys, these pins may be 25 placed at such a distance to the left in Fig. 2 that a very compact structure results and the whole mechanism is contained within workable limits. In the case of the ?ve unit code there will be 30 ?ve units. Three only have been shown in Fig. 2 as these are sui?cient to show the construction of the apparatus. The ?rst crank pin serves to move the type wheel through half a revolu tion, the second through a quarter and so on, the 35 last one moving it through one thirty-second, or the space of one character. Although a combination bar | and forked de tent has been shown in Fig. 1, other means of releasing the disc 3 for half a revolution may be 40 used. One such means is illustrated in Fig. 3 which also shows another means of driving the disc The disc 3 is provided With a hub “3 which ?ts Within a hollow bearing I? carried on a ?xed frame. On the bearing I7 is loosely car 45 ried a toothed wheel i8 attached to‘ a gear wheel i3 continuously driven. A pawl 2| adapted to mesh with the toothed wheel I8 is pivoted on a pin 25? carried on the inner surface of the disc 3. The pawl 2| tends to be pressed into engagement 50 with the toothed wheel l8 by a spring 22 ?xed to the disc 3. In the position of the disc 3 shown the pawl 2| is held out of engagement with the wheel it by means of a two armed detent lever and when the pin 4 is at the opposite end of 55 its diameter by a similar detent lever 24. The two levers 23 and 24 are pivoted on pins 25 and 23 and held in engagement with pawl 2| by a spring 27. The disc 3 is held in either of its two positions by a detent lever 28 pivoted on pin 25 and held in notch 30 or notch 3| in disc 3 by a spring 29. If disc 3 be in position shown and the hori zontal portion of lever 23 be depressed pawl 2| will be pressed into engagement with wheel I8 and the disc 3 will rotate therewith until lever 24 disengages pawl 2| and simultaneously lever 28 arrests disc 3 by falling into' notch 3|. The disc 3 will then be moved from its second posi 10 tion by actuation of detent lever 24. The levers 23 and 24 may be selectively de pressed according to the nature of the element of a character by moving an intermediate piece 15 to left or right above the ends of their horizontal portions and striking this piece down for each character. In the case of telegraph receiving apparatus of the start stop type the intermediate piece may be struck downwards by a cam after 20 a received signal. What is claimed is: all such pieces have been set by the elements of 1. Translating mechanism comprising in com bination a series of members, power driven means 25 tending to move each of said members, detent means for releasing each of said members for a predetermined movement only, a belt, a pulley, and a frame carrying said pulley for each mem ber, the belt passing‘ over the pulley and having 30 one end attached to the member and the other end attached to the frame, the other end of the last belt being attached to a ?xed point, grooved wheels ?xed to each frame and adapted to move in a slot in a ?xed frame, an indicating mem 35 ber adapted for movement by one pulley, means for keeping each belt under tension, and means for operating said detent means in a combina tion representing a character to be translated. 2. Translating mechanism comprising in com bination a series of discs tending to be continu 40 ously driven by common power driven means, detent means individual to each disc for holding said disc from rotation and when actuated allow ing a rotation of half a revolution only, a crank pin on each disc, a metallic tape, a pulley and a 45 frame carrying said pulley for each crank pin,‘ the metallic tape passing over the pulley and having one end attached. to the crank pinv and the other end to the frame of the next pulley, the other end of the last metallic tape being attached 50 to a fixed point, an indicating member adapted for movement by one pulley, means for keeping each metallic tape under tension, and means for operating said detent means in a combination 55 representing a character to be translated. REGINALD DENNIS SALMON.