Патент USA US2408454код для вставки
' Oct- 1, 1945' I 2,408,453 J. L. STIXRUD SHORTHAND 'TYPEWRITING MACHINE Filed Jan. 13, 1945 2 Sheets-Sheet 1 JOHNL. STIXRWB, INVENTQR I ATTORNEY? ‘ Oct. 1,- 1946. J. L. STIXRUD SHORTHAND TYPEWIR‘ITIING MACHINE Filed Jan. _1s, 1945' 2, 8,453‘ ~ 2 Sheets~Sheet 2 __ 5%. JOHN L . STIXRUD, INVENTOR ATTORNEY Patented Oct. 1, 2,408,453 Y‘ UNITED - STATES ‘ PATENT OFFICE I I . f ‘.- ' 72,408,453 - ’ SHORTHAND TYPEWRITING MACHINE , 161m L. Stixrud, Los Angeles', Calif. _ _ ' Application January 13, 1945, Serial No. 572,588 _ 11.0mm. \(01.197-9)' : , _ ' 1 ' Thisinvention relates to certain ‘new and use ful improvements in typewriting machines and deals particularly with that type of machine which is directed to phonetic writing whereby the of Fig. 2,v the use of codes line 4-4 of Fig. 2_, . ' ' a Fig. 5 is an elevational view showing an exag ' to represent the missing let; , - Fig. 4 is a fragmentary sectional view taken on spoken language may be‘ rapidly typed without ters. 2 Fig. 3 is'a sectionalview taken on line 3—3 gerated forward position of thepivotal connec- ‘ . The present invention embodies the broad prin ciples outlined in my co-pending application ?led 'Novemlber 8, 1943, Ser. No. 509,514 but includes certain modi?cations and ‘structural details by 1 which a marked improvement-in the operation< tions between the printing members and the parts v which actuate them. 2 ~ Referring more in detail to the drawings, 10 designates side frame plates, each‘ having .leg portions ll—ll by which the machine is sup- ' ported. Each leg may be offset as'at I2 with an of the machine will be noted.--1 ‘ The primary object of the present case resides feet '- may be fastened. in the simple yet eiiicient manner of‘initially ."Rotatably. mounted between the frame plates‘ aperture 13 therein to which'rubberv cushions or selecting and then subsequently. printinglthe. se key. ‘ ‘ ' A further object resides in the mechanical con plished. Directly in front of the platen I4 is a ' 20 series of printing members 22, each having an. able printing members by which the printing arcuate. face, bearing type characters designated l5, l6,- I‘I,,l_8 and I9. These printing members are. actuated'from keys positioned at the, front -mem'bers are properly positioned upon the 'de ‘ A still further object'of thevinventionresides' in the novel manner of arranging the several . V "25 keys on horizontal pivotswhereby a tilting ac- . actuated in alikemanner a description of the ~ operation of one will ‘be suf?cientfor a clear un derstanding of the complete operation of the ma- 7 ' printingof the character when the'key. is fully ‘ depressed. Another object of the invention resides in the‘ ., g v V ._ , 30 novel manner of coupling the action of two of r _ ~ ' chine; ‘ > ' . . . Each printing member “is pivotally connected by means of Pins Hand 22 to the upper ends of said keys to accomplish the printing. of certain characters. I of the machine'through the medium‘ of ‘longitudi nally‘extendingconnecting' bar members. In view of the ‘fact that-eachprinting member is tion may be had to make the various selections: of the desired characters and then to ‘cause a V Y which supports the paper .or other strip mate rial upon which the printing‘ isitov be accom-' ' nections between the back keys and the mov pression of the selected‘key.' ' ' I l0 at the far» end of the machine is a platen M lected character upon the depression of~the char actered ' arms 23 and 24 respectively. Pin 22 works in a vertically disposed slot 22a in the arm 24. The ' > A further object of the invention resides in the 35 purpose of the slot 22a is topermit. the arm .24 novel arrangement of letters and char'acters'to be I to move at a, slower speed than the arm 23. As printed. will be noted the arm 24 is slightly longer than These‘and other objects ‘will readily be pre- ' the arm 23, this being for a purpose-hereinafter sented to those skilled in this particular art, when ~ the [following speci?cation is read in connection with the attached drawings, wherein ‘like parts are designated by‘ similar reference characters throughout the several views. ' ' described. The arm 23 has a forwardly extend 40 ing ?nger,v 25 while the arm v24 has a slightly longer ?nger '26. Each ?nger and arm construc tion just described constitutes arbell crank lever which is pivotally ‘mounted on the cross shaft 21 ' In the drawings I have illustrated the preferred supported between the frame plates Ill-all]. , " embodiment of my invention, but it is to‘be un 45 ' A cross rod 28 is also mounted within thev side -_ frame plates. Ill-l0 and is spaced forwardly‘ in derstood that certain variations'ther'efrom may be resorted to without sacri?cing any of the spirit ‘ of the present invention. ~ In the drawings: w . Fig. 1 shows a plan view parallel ‘relation to thecross shaft 21. Pivotally ' mounted on’ the cross rod 28 are a series of pairs ' of the machine, omit 50, ting certain parts to show underlying .construction, ' ' Fig. 2 is a side new with was of the'frame. broken awayto more clearlyillustrate some of the detailed parts of the mechanism, ‘ of key bars, said :bars beingv designated ;29-.;3?. Each bar 29-30 has a relatively short, ?nger ex-, I “tension'as shown at 3| and 32 respectively. The ?nger 32 ,which'connects with the, ?nger 26 is slightlylshorter than 3| in order to impart a ' slower motion-.to the arm.“ and thus cause a -55 horizontal movement of the printing member 20. 2,408,453 3 4 the printing member to swing on the pivot 2! when the pair of key bars- 29-30 are rocked until the printing character l5 moves into the simultaneously. printing position. Attached to the upper portion of each of the arms 23 and 2A is a spring 33 and 33a, the oppo— site end of each spring being respectively fas tened to the hooks 3d and 3411. which are carried by a cross bar 35. The tension of the springs Sit-33a results in the return of the operating bars to their normal set position after each oper ation. The key. bars are limited‘i'n' their return ' movement by a pad element 36 which is carried by the cross support 51. The pivotally mounted bell crank levers. on I the cross shaft 2‘! are separated by spacers-38 and also the ‘bar elements which are pivotally The continued downward movement of the key bar causes'the underside of the key plate to contact with the underlying part 49 of the adjacent bar and therefore couples both bars 29 and 30 in their action which results in the printing of the selected character. The printing of any of the characters in the second line of the row A of keys is accomplished by'pressing on the key over‘ the selected char~ acter. The initial portion of the downward movement of the key bar swings the printing plate ‘to move the printing character it into printing position. The key plate then contacts the underlying portion 40 of the adjacent key bar and the ?nal portion of the downward movement The key bars 29 and 33 each have a T shaped‘ 7' of the key bar results in the forward printing movement‘ of the selected character. arm extending upwardly from their forward end. When pressure is applied to two keys at their The adjacent inner endsof these arms are ar adjacent inner edges both key bars are actuated ranged. in' overlapping relation as suggested (at in. unison which results in the Printing of the. 40 and ‘lea. The opposite ends of these-Tarms supported on the cross rod 28 are separated by spacers t9. - I I v r are formed with a bevelled upper surface M—llla. The medial portions of these T arms have a ?at surface as indicated at ill-42a, Key plates éd-t?a are pivotally attached as suggested at charaeters 1.1 on the printing member. Theprinting of the characters the'line ‘2 cf.‘ row. 13 ‘(33, .K._.'G, L, etc-l is-accomplished by-0p- crating the keys. in 'just the same manner as. lid-4M to the T arms so that they normally rest on the flat surfaces Q2—42a.. The under surface that described in connection with line i of row Ail-fella extend beneath the key plates 43a and 43 of the opposite key bar. with line 2 of row A and results in‘the printing A and results in the printing of the character at [9 being printed, and the printing 'of the Char-1*; of each key plate 43-4341 which overhangs the .R. etc-i is by bevelled surfaces lit-Ma may be padded with a 30 esters in line I .of row 3 (F. C, the same action as that described in trialled-i011v sound reducing material; The overlapping ends As will be noted from the illustrationsuggested> in Fig. 1 the key plates stand £3311 are attached to the upper ends of the key bars 29 and El] and are arranged in two rows, designated A and B. In advance of these rows A and B there is also shown a third row as indicated at C. These last mentioned keys are coupled together transversely instead of longitudinally as suggested in keys A and B, but their action is practically the same in the operation of the typing members. . The key bars leading to the keys in row C are designated Al?—4l. The forward ends of these barshave an upwardly extended portion 48 upon which a key 49 is pivotally mounted atpll‘ért. The -_ upper: surface of't'h'e portion€1l8 forward‘of'the, pivot'is bevelled as at 58. ~ .. .. _ . The bar 46 has an angular extending arm '51 > while the bar 61 is bent as indicated at 52. The keys are each provided with a forwardly proe jecting ‘arm 53 which extends over the angular arm 5! and the bent portion 52. The bar 41 is widened at 54 with a flange 55 at the upper end and a flange 55 at the lower edge, as shown in . Fig. 3. The bar it has an‘inwardly directed bearing 51 which is positioned ‘medially between the flanges 55 and. 55. ‘ The general operation_ of the-machine is as follows: The ‘initial movement of the key bars merely causes a movement of the printing mem ber to select the character to be printed and the ?nal downward portion of the bar movement coll ples the adjacent bar to'cause a forward move ment of the printing member which results in the printing of the character. A more detailed description of the operation is as follows. Any of the characters in the ?rst line of row character at is being printed. I y ' The printing of the characters on row C of the key plates" will now be described. ‘To print the character U the Operator presses on the key plate over this character. The initial portion of the downward movement of the key bar swingsthe printing plate to move the printing character it into printing position. The arm .53 then contacts the arm 5| and the ?nal portion of the downi ward movement of the key bar results in the for ward printing movement of the selected char- . acter. ,The application of pressure over the Y character results in the selection and?nal print ing of. thecharacter' .on line‘ 16 of the printingvv member. '. p ,l . Pressure on. the key plateover the character A will cause the'keyv'pla-te to tip liftingthe arm . vinto a higher position above the arm 5L1 The purpose of the tipping-is to get the arm out of the Wayto permitthe key bars to be operative ly‘connected by means of the ?anges 55- and to and the bearing 51. Thus when the pressure is applied over the character A the key bar will move downward causing the printing member to move the printing character l9 into printing po~ sition. The flange 55 then contacts the bearing 5! .of the adjacent key bar and the ?nal portion of the movement of the key bar results in the £01" Ward printing movement of the selected char acter. The applicationof pressure above the character E will cause the bearing El to move downward causing the letter'which appears in _.line lion the printing memberto move into printing position. The bearing 5'! new contacts the flange 5.6 of the adjacent keybar and the printing of the selected character-results. When both keys are pressed by straddling them with a thumb or ?nger .the character ‘I,’ which is. ar ranged in line H on the printing member will be impressed against the paper strip on the A of the keys may be printed by depressing the key plate at a point directly above-the charac._ ter. This results in the pivotal movement of the platen. key plate and when the plate contacts with'thei In a shorthand machine equipped with my key- ' bevelled surface of the key bar, that ‘particular key bar starts downward movement which causes 75 .board where a multiple selective printing is ac. 5 2,408,453 6 complished by the .co-action of , two keypla'tes then, actuating bothof said bars simultaneously certain requirements mustbe met in the arrange-' ment of the letters, numerals and characters to to subsequently move‘v the. printing member for ward to print the selected character, said print ing member and said pair of actuatingbars be ing, so constructed and arranged that theinitial actuating ‘ofsaid one of said bars causes aslower motion .of said printing member than the subse quent motion moving the printing member for insure easeof operation and a simple. method of ‘ writing. .As a'plurality of types are vattached tov one ‘ printing member it is important that none of these letters so placed will appear together when writing words or syllables. Thus S, _T,.and ward to printing position. . R must appear on different key units while. V, 3. In a machine of the character described, S, .F, B can safely be attached to one and the 10 comprising a plurality of printing members each sameprinting member as they do not form com bearing a series of printing characters, a pair. binations when writing words and syllables- This of actuating levers each having a pivotal cone method of arrangement has been carried out throughout the keyboard. 1, To promote ease" of nection with a printing member arranged there writing awkward ?nger positions must be avoided. Letters appearing in'the extreme rows should not be printed at the same time. The ?rst row is therefore reserved for numerals. The letters in 'between whereinone pivotal connection is ver-v ticallyspaced-above the other, a pair ofkey bars each operatively connected to one of said actu ating levers. and a plurality of keys coupled in pairs to actuate the key bars ?rst individually to the ?fth row seldom if ever appear in combina tions with letters in the second row. The letters 20 cause an initial selection and then jointly to most frequently used and which form combina-. cause a ?nal printing of the characters on said printing member. tions are found in the three central rows and re quire only a slight movement of the ?ngers in operation. The ?fth key unit from the left is not used in phonetic writing to avoid unnecessary movement of the left hand. The two units of keys reserved for the vowels are so arranged that a 4. The subject matter of claim 3 and, said keys and key bars being constructed and arranged in such a manner that an overlapping connection is provided between one key bar and the key of the other key bar. ‘ complete series of vowel sounds can be expressed, removing any chance of misreading a word. 5. The subject matter of claim 3 and, the bars comprising, each pair of key bars having an over What I desire to claim is: ' 30 lapping connection for joint action after a pre determined movement of one of said bars. 1. In a shorthand typing machine consisting of 6. In a typing machine consisting of a plural a plurality of printing members each having a ity of printing members each having a series of series of printing characters, each of said print characters peripherally spaced on its surface, a ing members having a pair of pivoting points plurality of actuating levers arranged in pairs placed vertically one above the other and where in the upper of said pivoting points consists of with a printing member therebetween, said levers , being independently pivotally connected to said a" Vertically disposed slot, a plurality of actuate printing membenand means for actuating one of ing bars arranged in pairs with a printing said levers to select one of the characters on the member therebetween, one of said bars of a pair printing member and then actuating all of said being pivotally connected by a pin to said print levers to subsequently move the printing mem ing member at one of said pivoting points and ber forward to print the selected character, the the other bar of said pair being pivotally con pivotal connections between said levers and print nected by a pin to said printing member at the ing member being spaced one above the other and other of said pivot points, said pins and said pair of pivoting points constituting a coacting con 45 the pivot of one pivotal connection occupying a . vertically disposed slot. nection between each printing member and its pair of associated actuating bars whereby each 7. In a machine of the kind described, com prising a plurality of printing members each bear bar acts as a shift key in its initial movement and ing a series of printing characters, a pair of as a printing bar in its ?nal movement, and means for actuating either one of said bars to 50 levers an arm of each of which has a pivotal connection with a printing member arranged ' select one of the characters on the printing mem ber and for then rocking said key bars simulta therebetween, the pivotal connection between one arm and the printing member being vertically ar neously to subsequently move the printing mem ranged above the other pivotal connection be ber forward to print the selected character. 2. In a shorthand typing ‘machine consisting tween the other arm and the printing member, a of a plurality of printing members each having a pair of key bars each having a connection with a ?nger of one of said levers, and a plurality of series of printing characters, each of said print keys coupled in pairs to actuate the key bars and ing members having a pair of pivoting points in turn the levers individually through the me placed vertically one above the other and where in the upper of said pivoting points consists of a 60 dium of' said ?ngers to cause an initial selection vertically disposed slot, a plurality of actuating and then jointly to cause a ?nal printing of the key bars arranged in pairs with a printing mem characters on said printing member. 8. The subject matter of claim 7 and, said ber therebetween, one of said bars of a pair be keys and key bars being constructed and arranged ing pivotally connected by a pin to said printing member at one of said pivoting points and the 65 in such a manner that an overlapping connection is provided between one key bar and the key of other bar of said pair being pivotally connected by a pin to said printing member at the other of the other key bar. said pivot points, said pinsand said pair of pivot / 9. The subject matter of claim 7, and said key ing points constituting a coacting connection be bars each having an overlapping connection for tween each printing member and its pair of as 70 joint action after a predetermined movement of sociated actuating key bars whereby each bar one of said bars. 10.- In amachine of the kind described, com-v prising a platen, a plurality of printing members each provided with a, plurality of types arranged for actuating either one of said . bars to select one of the characters on the printing member and 75 in a vertical position facingsaid platen and mov-v acts as a shift key in its initial movement and ‘ as printing bar in its ?nal movement, and means 2,408,453 7 able in a horizontal direction to cause said types to print on paper supported by said platen, said printing members each having two independent pivot points a line drawn through which extends parallel to the printing line of said types, a pair S 11. In a shorthand typing machine consisting of .a plurality of printing members each bearing a series of printing characters, a plurality of key bars arranged in pairs and connected to said printing members, the bars in each pair having an overlapping connection for joint action after of key bars, a plurality of keys coupled in pairs a predetermined movement of one of said bars, to actuate the key bars individually or jointly to and key members associated with each key bar, initially select and subsequently print vone of the said key members being arranged in a parallel types on said printing member, and connecting means between said key bars and each printing 10 closely spaced relation transversely of the ma chine whereby transverse parallel adjacent member to perform the function ascribed to ac edges thereof may be simultaneously depressed at tuation of the key bars, said connecting means their midlength portions by a ?nger of the op comprising a pair of bell crank levers one of erator to cause the printing of one of the char which has an arm pivoted at one of said pivot points and the other of which has an arm piv- 15 ' acters of the associated printing member. oted at the other of said pivot points. JOHN L. STIXRUD.