CH243111A

CH243111A - Typewriter.

Info

Publication number: CH243111A
Authority: CH
Inventors: Burkard David
Original assignee: Burkard David
Priority date: 1943-05-19
Filing date: 1943-05-19
Publication date: 1946-06-30

Description

lliaehine ä eerire. lliaehine to erire.

Depuis ,des ann'ees, an cherche, dans las ecoles de dactylographie, par un apprentis sage systematique et ran entrainement träs po-usse, ä obtenir des eleves dactylob,-raphes 1'ecriture "aveugle" dans 1'emploi,de 1a ma chine ä ecrire. Malgre las avantages que cha cun lui reconnait, rette methode n'est pas par venue ä se generaliser. 0n peut evoquer comme cause de sset echec la tendance propre ä @1'homme,de surveiller'et de gguider des yeux les mouvements que font les mains. Il con vient bien plus -de chercher la rai--on,dann la trop gorande diversite des comman.des qu'ont ä desservir les mains pour ecrire ä la machine et plus encore ;dans 1e fait qu'une Partie de res commandes a 1'ineonvenient adle faire quitter ä la main sa place definie au-deosus: des touches & lettres et @de chiffres. C'est notamment 1e ras ä chaque retour ä la ligne, qui est toujours accompagne d'un coup d'oeil sur 1e clavier pour coutröler Je retour de la main ä la bonne place au-,dessus des touches. En outre, las dactylographes qui tabulent saus l'aide,du regard sont bien rares. A force For years, attempts have been made, in typing schools, by a wise systematic apprenticeship and very thorough training, to obtain typist pupils, raphists, in "blind" writing. in the use of the typewriter. Despite the advantages that everyone recognizes in it, this method has not managed to become generalized. One can cite as a cause of failure and failure the tendency peculiar to man to watch and guide the movements of the hands with his eyes. It is much more appropriate to look for the reason, in the too great diversity of commands that the hands have to serve to write on the typewriter and even more, in the fact that a Part of res commands has the inconvenience of causing the hand to leave its place defined above: keys & letters and numbers. It is in particular the 1st flush at each return to the line, which is always accompanied by a glance at the keyboard to control the return of the hand to the right place above the keys. Moreover, typists who tabulate without looking are very rare. By force

de jeter un coup -d'oeil ä chaque instant sur 1e clavier, an est amene, Petit ä Petit, ä ne plus 1e quitter des yeug, et c'est 1a xaison pour laquelle la plupart ;des dactylographes renoncent finalement ä 1'ecriture "aveugle". to glance constantly at the keyboard, little by little, one is led to never take his eyes off it, and this is the reason why most typists finally give up writing. "blind".

0.n a une confirmation de ce qui precäde en übservant un pianiste en train de jouer. Il execute son morceau @sans regarder las doigts, mais ne peut se passer,de baisser les yeux sur 1e clavier quand, ayant tourne une Page, la main doit retrouver egactement sa place en face des touches. 0.n has a confirmation of the above by observing a pianist playing. He performs his piece without looking at the fingers, but cannot do without lowering his eyes to the keyboard when, having turned a page, the hand must find its place again in front of the keys.

Au cours de nombreux essais, finventeur a transforme une machine ä ecrire de maniere ä confier au genou et aux pieds lescommandes ,du mouvement du chariot, de 1'avauce d'inter ligne (rotation :du rouleau) et de Ja tabulation. En d''.autres termes, les jambes ont ete char g6es de toutes las commandes intermittentes pour r6duire la täche des doigts ä .1a seule frappe .des touches .d'impressio@n et,d'espaces de lettres, dans Je but de leur permettre .de s'acquitter de rette täche avec une assurance, une rapidite et une celerite accrues. During numerous tests, the inventor transformed a typewriter so as to entrust the knee and the feet with the controls for the movement of the carriage, the interline advance (rotation of the roller) and tabulation. In other words, the legs have been loaded with all the intermittent commands to reduce the task of the fingers to just hitting the print and letterspace keys, in order to to enable them to carry out this task with greater assurance, rapidity and celerity.

La presente invenhon a pour objet une machirre ä ecrire avec tabulaleur, dans la quelle 1e retour du chariot et la rotation du rouleau de frappe ont lieu chacun au moyen d'un levier dispose pour etre actionne par une jambe de 1'operateur, et qui est caracterisee .en ce que 1:a liberatian du chariot a lieu au moyen d'un levier qui est egalement .dispose pour eire actionne par Tune des. jambes de 1'opärateur. The subject of the present invention is a typewriter with tabulator, in which the return of the carriage and the rotation of the striking roller each take place by means of a lever arranged to be actuated by a leg of the operator, and which is characterized .in that 1: a liberatian of the carriage takes place by means of a lever which is also .disposed to eire actuated by Tune des. operator's legs.

Le dessin a-nnexe represente, ä titre d'exemple, une forme d'exkution @da 1a ma chine ä ecrire faisant Fobjet de 1'inventio@n@. The attached drawing shows, by way of example, one form of execution of the typewriter forming the subject of the invention.

Fig. 1 en est une vue,d'ensemb.le en pers pective. Fig. 1 is an overall perspective view.

Fig. 2 est une vue de face du rouleau -d-e frappe et des moyens qui 1e supportent. Fig. 3 est une vue de profil de la machirre. Fig. 4 e.st une vue de detail. Fig. 2 is a front view of the striking roller and the means which support it. Fig. 3 is a side view of the jawbone. Fig. 4 is a detail view.

Fig. 5 est une vue en coupe horizontale du socle de la m@achine. Fig. 5 is a horizontal sectional view of the base of the m@achine.

Fig. 6 est une vue en coupe verticale par tielle, ä plus grande erhelle, d'un d & s bras porte-roulette visible sur la fig. 5. Fig. 6 is a vertical sectional view by tielle, at a larger scale, of a caster-holder arm visible in FIG. 5.

Fig. 7 est une vue de @detail, en perspec tüve. Fig. 7 is a view of @detail, in perspec tüve.

La machirre representee comprend un @dis positif de frappe 1, ä clavier 2, d'un type quelconque, qui est solidaire -d'une table 3 portee par un pied 4, solidaire @d'un socle 5. C'est Sur ce socle que 1'operateur utilsant la maehine pose ses pieds. The machirre represented comprises a positive typing @dis 1, with a keyboard 2, of any type, which is secured -to a table 3 carried by a foot 4, secured @to a base 5. It is on this base that the operator using the machine puts his feet on.

1yIontee Sur pied, la machirre repr6s:entee a une assise stable, supprimant les vibratiions et contribuant au travail silencicux. Lette disposition Bonne Favanta-ge -de placer 1e ela vier 2 ä unie hauteur determinee et toujours la meine au-dessus du sol. Des roulettes 6, montees dass. 1e socle 5, sont prevues pour permettre 1e deplace:ment facile de la machirre Sur .1e sol. Ces roulettes occupent normale m@ent une Position usup6rieure pour laquelle elles ne sont fas en contact avec 1e sol 7 (fig. 6). C'est 1e bord du so.ole qui repose dirE;ctement par temre. Ces roulettes sont abaissables au contact du sol par des moyens qui seront decrits plus loin. 1yIontee On foot, the jaw represented has a stable base, suppressing vibrations and contributing to silent work. This layout Good Advantage - of placing the sink 2 at a fixed height and always the same above the floor. 6 casters, mounted dass. 1st base 5, are provided to allow the first deplace: easy ment of the machirre On .1e ground. These wheels normally occupy a m@ent usup6rieure position for which they are fas in contact with the first floor 7 (Fig. 6). It is the edge of the plinth which rests directly on the ground. These wheels are lowerable in contact with the ground by means which will be described later.

La. machirre representee comporte les organes de commande suivants.: LTn levier 8, dispose pour etre a.etionne par 1e genou d.roit de l'operateur et servant ä deplacer 1e rhariot 9 vers la droite ä Fen contre dune force d2 rappel produite par un ressort ou un contrepoids. Ce chariot forte 1e rouleau de frappe 10; unte pedale 11. portee par 1e socle 5 et disposee pour etre actionnee par 1e pied droh de 1'operateur et servant ä produire la rota tion du rouleau 10; une pedale 12, @dispos,ee pour eire action nee par 1e pied gauche de Foperateur et ser vant ä liberer 1e chariot du mecanisme d'echappem@ent habituel, ainsi qu'ä tabuler, aomme on 1'expliquera plus loin; une pedale 13, disposee au voisinage @de la. pedale 12 et servant ä la presi#lection ou pre paration decimal-e de la tabulation; une manivelle 14, d'isposee ä 1'arriere du pied 4 et servant ä amener les raulettes, en position active lorsqu'ou exerce une pression aveo 1e pie:d :sur rette manivelle 14. La. machirre represented comprises the following control members: LTn lever 8, arranged to be a.etionne by the first right knee of the operator and serving to move the first rhoriot 9 to the right at Fen against a return force d2 produced by a spring or a counterweight. This carriage strong 1st strike roller 10; a pedal 11 carried by the base 5 and arranged to be actuated by the right foot of the operator and serving to produce the rotation of the roller 10; a pedal 12, arranged to be operated by the operator's left foot and serving to release the carriage from the usual exhaust mechanism, as well as tabulating, as will be explained later; a pedal 13, disposed in the vicinity @de la. pedal 12 and serving for the presi#lection or decimal-e preparation of the tabulation; a crank 14, located at the back of the foot 4 and serving to bring the raulettes, into the active position when pressure is exerted with the first foot: d: on this crank 14.

Le ehariot 9 et 1e rouleau ;dle frappe 10 qu'il comprend sont portes par un Support 15 coulissant Sur un axe 16 parallele ä Faxe du rouleau 10. Lee Support 15 est pourvu d'uu bras 1"r, s'etendant horizontalement vers 1'avant oü il est mini d'un galet 18 se Upla gant Jans un guidage 19 parallele ä Faxe 16. C@est ä 1'extreiuite avant du bras 17 (1'extr@ mit6 de gauche Sur la fig. 3), qu'est fixe 1e levier B. 0n comprend facile-ment, en,exami nant les fig. 1, 2 et 3, qu'en exergant une poue-see de gauche ä droite au moyen ,du en#ou,drckit Sur 1e levier 8, an peut faire r8 , g trograder ä volonte 1e chariot, en particulier paar 1e ra.mener en position corresponlant au dAut de 1a ligne ä frapper. The trolley 9 and the first roller 10 which it comprises are carried by a Support 15 sliding on an axis 16 parallel to the axis of the roller 10. The Support 15 is provided with an arm 1"r, extending horizontally towards 1'avant where it is mini a roller 18 upla gant Jans a guide 19 parallel to Faxe 16. It @ 1'extreiuite front of the arm 17 (1'extr @ mit6 left In Fig. 3), what is fixed the 1st lever B. It is easy to understand, by examining Fig. 1, 2 and 3, that by exerting a poe-see from left to right by means of the en#or lever 8, an can make r8, g move the carriage at will, in particular by the first drive in position corresponding to the start of the line to be struck.

Laxe 16 a une longueur egale environ ä la largeur de la table 3, ce qui permet de Jonner aux deux points d'.appui 20, 21 du Support 15 siir cet a.xe, un espacement suffi sant: 30 ein par exemple. Da fait du guida.ge realise par 1e galet 18, la stabilite du chariot est ass aree. The axis 16 has a length approximately equal to the width of the table 3, which allows Jonner to the two points of support 20, 21 of the support 15 siir this a.xe, a sufficient spacing: 30 ein for example. Da fact guida.ge realized by the first roller 18, the stability of the carriage is ass aree.

L'amplitudie du mouvament que 1'on doit Bonner au lavier 8 est telle que Je deplacement correspondant de la Jambe n'.est pas entrave par la robe la plus etroite et 1'on n'a aucune difficulte 5, amener la chariot ä n'impo.rte quel endroh precis, de sa course. Las! d6place ments vers la gauche peuvent avoir heu apres liberation du chariot (en agissant sur la pe dale 12) et en accompagnant 1e levier 8 avec la genou droit, lorsqu'il se deplace saus 1'ac tion de la forte -de rappel habituelle sollici tant la chariot ä se deplacer de .drohe ;z gauche. The amplitude of the movement that must be made by the lever 8 is such that the corresponding movement of the leg is not hindered by the narrowest dress and there is no difficulty in bringing the carriage to no matter what precise endroh, of its course. The ace! displacements to the left may have occurred after releasing the carriage (by acting on the pedal 12) and by accompanying the lever 8 with the right knee, when it moves without the action of the usual strong reminder requested. so long as the carriage moves from right to left.

La Pedale 11 ne fait que provoquer la rotation du rouleau 10 lor!s.,qu'on presse sur alle et tela par 1'interm6diaire @de moyens .de transmission n.on representes. Il est avanta geux,de prevair deux commandes !differenües, Tune pour la .deplaoement lateral .du chariot (lavier 8) et 1'autre (Pedale 11) pour 1a rota tion du rouleau, si an veut avoir la possibi lit6 de diriger facilemeut la Papier en tous sens par 1e seul moyen des membres infe rieurs de 1@operateur. The Pedal 11 only causes the rotation of the roller 10 then! It is advantageous to provide two different controls, one for the lateral movement of the carriage (keyboard 8) and the other (Pedal 11) for the rotation of the roller, if you want to have the possibility of easily steering the Paper in all directions by the sole means of the lower limbs of the operator.

La pied droit, constamment pose sur la Pedale 11, provoque 1'avance du Papier ,de uu ou de plusieurs @espaces d'interlignes par des pres@sions exercee9 en nombre correspondant. Dans la cae du retour ä la liigne du ebariot, la Pression sur la Pedale 11 est exercee simul tan6ment avec 1'action du genou ,ramenaut 1e lavier 8,dans sa Position extreme de @droite. The right foot, constantly resting on the Pedal 11, causes the Paper to advance, one or more @spaces of interlines by pres@sions exerted in corresponding numbers. In the case of the return to the line of the bar, the Pressure on the Pedal 11 is exerted simultaneously with the action of the knee, returning the first lever 8, in its extreme position of @right.

La Pedale 12 ne fait que liberer la chariot quand alle est employee sann la concours prealable de la Pedale 13; alle effectue aussi la tabulation quand an s'en sert conjointe ment avec cette Pedale 13. Pedal 12 only releases the carriage when it is used without the prior assistance of Pedal 13; alle also performs tabulation when used in conjunction with this Pedal 13.

L'arrAt 22 du tabulateur etant pr6a-Iable ment mis en place ä 1'en@droit voulu sur la cremaillere habituelle 23, on realise la pr6pa ration decimale ou preselection de la tabula tion en appuyant une ou plusieurs fois sur la p,edal,e 13, selon qu'on a ä ecrire un nombre eomprenant un oax plusieurs chiffres ä 1'en droit oiz Je ch=ariot est amene lorsqu'on pro duit la t.abulation. Cette preparahon se. fait toujours ä 1'avancx, par egemple tont en iisant 1e texte ä copier, et 1a tabulation pro- The Stop 22 of the tabulator having been previously set up at the desired location on the usual rack 23, the decimal preparation or preselection of the tabulation is carried out by pressing one or more several times on the pedal 13, depending on whether one has to write a number comprising one or more digits at the right where the ch=ariot is brought when the tabulation is produced. This preparation. always done in advance, for example by reading the text to be copied, and the tabulation pro-

prement dite s'effectue sann ralentissement de la cadence, en appuyant, la mo:ment venü, sur la p6dale 12. La fig. 4 muntre, sch6mati quement, la mecanisme au moyen duquel las p6dules 12 et 13 ag ssent pour produire la prepara#tio#n decimale de la tabulation et Bette tabulation elle-meme. Sur ce?tte fig. 4, les organes sont nepresentes ,dans la Position de repos des pedales 12 et 13. En appuyant sur la Pedale 13, qui est sodidaire Tun lavier 26 pivotant autour ',d'un axe 24, on produit l- soulevement de la Pedale 12, du fait que 1'extremite 25 du lavier 26 est articülee par rotule sur la Pedale 12. La levee :de la p6dale 12 produit 1e deplacement verical de haut en bas dune tige 27, artlculee en 28 ä 1'extr6 mlitä 1ike @d'un lavier 29, pK)lidaire klc la p6dale 12. La tige 27 pres,ente un nez 30 qui, lorsque cette tilge est abaissee, vieret agir sur un lavier coude 31 ä 1'encontre d'un ressort de rappel 32, pour @dAplacer un cliquet 33 de gauche ä drohe sur la fyg. 4. Ce cliquet eoopere avec une dentlire 34 dune cremaillere 35; il est s oumis. ä, 1'action d'un reesort 36 la maintenant en Prise avec ladite denture 34. Lors de 1'aohon du niez 30 sur 1e lavier 31, 1e cliquet 33 deplaze la cremaillere 35 vers la,droite ,de la valeur ,d'un pas de la @denture 34. Un autre cliquet 37, Porte par une Partie fixe 38, vieret alors cooperer avec une autre denture 39 :de la eremaill6re 35, pour immo biliser cette d'erniere Jans la Position oü la cliquet 33 1'a amen.ee, si bien que, lorsqu'on ces@Me d'appuyer sur la Pedale 13 et que la nez 30 revient dans@ la Position repres@entee sur le,desi in, ainsi que 1e cliquet 33, la cr6mail b6re 35 ne suit pas ce mouvement,de retour. Une nouvelle Pression sur la pkale 13 a pour effet de prowoquer une nouvelle avance d'un pas vers la Uroite de la crämai11ere 35 par Je meme jeu :d'operation5.. Il est clair que la cremaillere 35 avancera ,d'autant ,d@e pas, vers la drohe que 1'on aura -exeroe,de Pressions sur la pichle 13. 0r, la crem.aillere 35 entmine dans sonn mouvement vem 1a. drohe un arret 40 que presente une tige 41 coulissant sur la ci6maillere 35. Un ressort de comprmsion 42 sollicite da tete 43 de 1a tige 41 ä s'appuyer previously said is carried out without slowing down the rate, by pressing, at the moment come, on the pedal 12. FIG. 4 schematically shows the mechanism by which the pedals 12 and 13 act to produce the decimal preparation of the tabulation and the tabulation itself. On this fig. 4, the organs are not present, in the rest position of the pedals 12 and 13. By pressing the Pedal 13, which is joint Tun lavier 26 pivoting around ', an axis 24, one produces the lifting of the Pedal 12 , because the end 25 of the lavier 26 is articulated by a ball joint on the Pedal 12. The lifting of the pedal 12 produces the first vertical displacement from top to bottom of a rod 27, articulated at 28 at the extr6 mlitä 1ike @d a lavier 29, pK) lidaire klc the pedal 12. The rod 27 pres, ente a nose 30 which, when this tilge is lowered, vieret act on an elbow lavier 31 ä 1'contre a return spring 32, to @dAplace a ratchet 33 from left to right on fig. 4. This pawl cooperates with a toothing 34 of a rack 35; he is submissive. ä, the action of a spring 36 keeping it in engagement with said toothing 34. When the nose 30 is engaged on the lever 31, the pawl 33 moves the rack 35 to the right by the amount of a step of the toothing 34. Another pawl 37, carried by a fixed part 38, vieret then cooperate with another toothing 39: of the enamel 35, to immobilize this last Jans Position where the pawl 33 1 ' has amen.ee, so that, when one ceases to press on the Pedal 13 and that the nose 30 returns to the Position represented on the desi in, as well as the pawl 33, the rack 35 does not follow this movement,back. A new pressure on the pkale 13 has the effect of causing a new advance of one step towards the straightness of the rack 35 by the same game: operation 5 .. It is clear that the rack 35 will advance, as much, @e step, towards the right that we will have -exercised, Pressures on the pichle 13. 0r, the rack 35 begins in its movement vem 1a. drohe a stop 40 that presents a rod 41 sliding on the ci6maillere 35. A compression spring 42 requests da head 43 of 1a rod 41 to rest

contre 1'extremite de .droite de la cremaillere 35. Un ressort @de traction 44 sollicite cons tamment rette cremaillzre vers la gauche. against the right-hand end of the rack 35. A traction spring 44 constantly urges the rack to the left.

La tige 41 presente une @d@enture 45, des tinee ä cooperer ave-c un cliquet. 46 dann les canditions que 1'on indiquera plus loin. The rod 41 has a @d @ enture 45, intended to cooperate with a pawl. 46 in the conditions that will be indicated later.

La @depression de la Pedale 12, apres que 1'on a agit une ou plusieurs fois Sur la Pedale 13, a pour effet de deplacer vers 1e haut la tige 27 ä partir de la Position representee Sur 1e dsin. En montant ainsi, l'extremite supe rieure -de rette tige 27 buhe contre la Partie 43 Je la tige 41 qui se trouve alors avancee vers la droite ä partir de la Position repre sentee Sur 1e -dessin. La tige 41, et avec elle la cremai,llere 35, oscillent d onc autour dun age 47, 6e qui amene la denture 45 en Prise avec 1e cliquet 46. En meme temps, la butee 40 se trouve plaeee Sur la trajectoire de 1'ar ret 22. Par Suite de ce mouvement d'oscilla tion autour de laxe 47, les dentures 34 et 39 quittent leurs cliquets respeetifs. La cr6mail leTe se trouve dann liberee et obeit ä la solli oitation du ressort 44, ce qui la ramme dans .la Position repTesentee, vers un palier situe au@dessus de faxe de rotation 47, tandis que la tige 41 est empechee .de la suivre par 1e cliquet 46. Lors de son-mouvement de montk consecutif ä Vabaissement de 1.a Pedale 12, la tige 27 agil, par 1e moyen -d'une extension laterale 48, Sur un mecanisme de type connu, represente Sur la fig. 7, pour liberer 1e cha riot, ce qui,determine 1e depilacement vers la Bauche de la cremaillere 23 et de 1'arret 22 quelle Porte, jusqu'au moment oü cet arret buhe contre 40.A partir ;de cet instant, an peut cesser d'agir Sur la Pedale 12 et 1e cha riot se trouve immobilise dlans la Position oü 1'on peut frapper 1e Premier Chiffre du nom bre destine ä ehre inscrit @dans rette Position .du chariot. En meme temps que Ja tige 27 re tourne dans la Position representee, la. tige 41 oseille autour de 47, sous 1'action d'un ressort 49, pour reprendre la Position representee sur le dessin. Ce mouvement d'oscillation degage la denture 45 du cliquet 46, ce qui permet ä rette tige 41 de revenir ä la Position repre sent6e Sur 1e dessin, sous 1'effet du ressort 42. The depression of the Pedal 12, after 1'on has acted one or more times on the Pedal 13, has the effect of moving upwards the rod 27 from the position represented on the 1st drawing. As it rises in this way, the upper end of this rod 27 bumps against Part 43 of rod 41 which is then advanced to the right from the position shown on the drawing. The rod 41, and with it the cremai, lère 35, therefore oscillate around an age 47, 6th which brings the toothing 45 into engagement with the first pawl 46. At the same time, the stop 40 is placed on the trajectory of 1 ' ar ret 22. As a result of this oscillating movement around the axis 47, the teeth 34 and 39 leave their respective pawls. The toothed rack is now released and obeys the stress of the spring 44, which rammes it into the position shown, towards a bearing located above the rotation axis 47, while the rod 41 is prevented from followed by the first pawl 46. During its mounting movement consecutive to the lowering of the Pedal 12, the rod 27 agil, by the first means -of a lateral extension 48, On a mechanism of known type, represented in FIG. . 7, to release the carriage, which determines the movement towards the Bauche of the rack 23 and the stop 22 which door, until the moment when this stop bumps against 40. From this moment, one can stop acting on Pedal 12 and the carriage is immobilized in the Position where the First Digit of the number intended to be entered in this Position of the carriage can be struck. At the same time as Ja rod 27 re rotates into the represented position, the. rod 41 sorrel around 47, under the action of a spring 49, to resume the position shown in the drawing. This oscillating movement disengages the toothing 45 from the pawl 46, which allows this rod 41 to return to the position shown in the drawing, under the effect of the spring 42.

A partir de ce moment, 1e mecanisme a repris sa Position primitive, et Von peut frapper les touches de caracteres. From this moment, the mechanism has resumed its primitive position, and you can hit the character keys.

Le mecanisme represente Sur la fig. 7 comprend un levier 61 destine ä cooperer avec 1'extensi.on laterale 48. Ce levier est Porte par un arbre 62, solidaire dune fourchette 63, cooperant avec une gorge 64 d'un tambour 65, monte librement Sur un axe 66. Le tambour 65 est solidaire dune roue dentee non repre sentee d'entrainement du chariot. 11 presente ä son extremite de droite Sur 1e @dessin une denture de champ 67, en forme de dents de laug, destink ä coop6rer avec une denture correspondante d'un tambour 68 solidaiTe de la roue d'echappement 69 commandant I'avance pa.s ä pas du chariot sous 1'effet de la frappe et Sous 1'action du ressort de rap pel habituel. 0n comprend facilement que 1e soulevement de 1'extension 48 karte la den ture 67 de la denture de la piece 68 et libere par consequent 1e chariot, 1e tambour 65 etant alons tout ä fait libre par rapport ä, la p1äae 68. The mechanism represented in fig. 7 comprises a lever 61 intended to cooperate with the lateral extension 48. This lever is carried by a shaft 62, integral with a fork 63, cooperating with a groove 64 of a drum 65, mounted freely on an axis 66. The drum 65 is integral with a toothed wheel, not shown, for driving the carriage. 11 presents at its right end On the first drawing a field toothing 67, in the form of laug teeth, intended to cooperate with a corresponding toothing of a drum 68 integral with the escape wheel 69 controlling the advance pa. s step of the carriage under the effect of the strike and under the action of the usual return spring. It is easy to understand that the lifting of the extension 48 separates the toothing 67 from the toothing of the part 68 and consequently releases the carriage, the drum 65 being at all times completely free with respect to the plate 68.

La manivelle 14 est solidaire .d'un arbre 50, dispose dans 1e socle 5 et portant deux cames 51, 52 qui, lorsque Fon fait tourner la manivelle 14, viennent agzr Sur deux leviers 53, 54, solidaires de deux arbres 55, 56 paral Mles ä 1'arbre 50. Ces arbres 55, 56 sont 6gale ment solidaires de bras 57, 58, 59, 60 ä 1'extremite de chacun desquels se trouve fixee Tune des roulettes 6. La fig. 6 represente 1'extremite du bras 57, portant sa roulette 6 par 1'intermediaire d'un organe 61. On com prend facilement que, sous 1'effet,des cames 51, 52, les arbres 55 et 56 tournent, et 1'extre mit6 des bras 57, 58, 59, 60 s'abaisse jusqu'au moment oü les roulettes. 6 viennent au con tact du eol. A partir de ce moment, @la rota tion des arbres 55 et 56 a pour effet de soule ver legerement 1e socle 5 et -de lui faire quit ter terre. La manivelle 14 reste alors d'elle mAme dans la Position oü an 1'a ainsi amenee et 1'on peut deplacer avec aisance la machine ä, krire Sur 1e sol. Lorsqu'.alle a ehe amenee dans la Position desirk, an agil en sens in- The crank 14 is integral with a shaft 50, arranged in the first base 5 and carrying two cams 51, 52 which, when Fon rotates the crank 14, come agzr On two levers 53, 54, integral with two shafts 55, 56 parallel to the shaft 50. These shafts 55, 56 are also integral with arms 57, 58, 59, 60 at the end of each of which is fixed one of the rollers 6. FIG. 6 represents the end of the arm 57, carrying its wheel 6 via a member 61. It is easily understood that, under the effect of the cams 51, 52, the shafts 55 and 56 rotate, and the extreme mit6 arms 57, 58, 59, 60 lowers until the wheels. 6 come into contact with the eol. From this moment, @la rotation of the shafts 55 and 56 has the effect of lifting the base 5 slightly and -to make it leave the ground. The crank 14 then remains of itself in the position where it has thus been brought and the machine can be moved with ease on the ground. When she was brought into the Desired Position, she acted in an in-

verse Sur la manivelle 14, ce qui souleve les roulettes 6 et ramsne 1e socle 5 Sur 1e s.ol. pours On the crank 14, which raises the rollers 6 and ramsne the 1st base 5 On the 1st s.ol.

Oni a prevu Sur 1a fig. 1, en arriere -du chariot 9, une boite 62 destinee ä contenir 1e Papier ä lettres, les formulaires de factures, cartes Postales, enveloppes, etc., ainsi que 1e Papier carbone dopt 1'operateur a besoin pour son travail. Cette boite peut eire munie inte rieurement d'un certain nombre de sApara tions. Oni has provided In 1a fig. 1, behind the carriage 9, a box 62 intended to contain the stationery, invoice forms, post cards, envelopes, etc., as well as the carbon paper adopted by the operator for his work. This box may be equipped internally with a certain number of separations.

Il est clair que, dans d'autres formen d'exscution, les diverses fonctions autres que la frappe des touches -d'scriture pourraient etre eommandees au moyen d'.orga@nes action n6s par les jambes de 1'opsrateur dune ma niere differente de Gelle @dgcrite. It is clear that, in other forms of execution, the various functions other than the striking of the writing keys could be controlled by means of action organs born by the legs of the operator in a manner different from Gelle @dgcrite.

Claims

CLAIM Krire machine with tabulator, in which the return of the carriage and the rotation of the striking roll each take place by means of a lever arranged to be actuated by a leg of the operator, characterized in that the release of the carriage takes place by means of a lever which is also arranged to be actuated by one of the operator's legs.

SUB-CLAIMS

1. Machire à krire according to the claim, characterized in that the first lever serving to release the carriage (9) is a lever (29) uruni -d'un Pedale (12).

2. Brake lever according to claim and sub-claim 1, characterized in that the lever (29) producing the release of the carriage (9) is provided in such a way that it nerves to actuate a rod (41). of pTeparation dki male tabulation.

3. Machire ä krire according to claim and sub-claim 1, characterized in that the first lovier (29) producing the lib6rationdtz carriage produces, when lowering its pedal (12), the first lifting of a rod ( 27) oscillating a second rod (41) about -dun axis of rotation (47), second rod rette (41) Mant held in position against a eremaill6re (35) by a reesort (42).

4. Krire machine according to claim and] the sub-claims 1 and 3, characterized in that the crema.illere (35) is provided with two teeth (34 and 39) arranged one after the other relative to the axis of rotation (47).

5. 111achine ä, written according to claim and sub-claims 1 and 3, characterized in that the rack (35) is biased by a spring (44) to a bearing located # - dess.us. said axis of rotation (47).

6. Typewriter according to claim and sub-claims 1 and 3, characterized in that the rod (27), which is raised when said Pedal (12) is lowered, has a nose (30) which, by lifting of said Pedal (12), presses against a elbow lever (31) which, thanks to a pawl (33) and a spring (36), produces the advance of the rack (35) die 1.a value of a tooth of one of its teeth.

7. Typewriter according to claim and sub-claims 1, 3 and 6, characterized in that a Part (38), fixed relative to the frame, carries a second pawl (37) which , When the rack (35) moves forward, engages with a tooth of one of the toothings (39) of the rack rack. B.

Writing machine according to claim and sub-claims 1, 3, 6 and 7, characterized in that it comprises a third pawl (46), carried by a fixed part relative to the frame and which is subject to the action of a res.sart, this pawl coming into engagement with a -teeth (45) of the second rod (41) capable of oscillating around said axis (47), this second rod being used for the -decmal preparation of the tabulation.

9. Writing machine according to claim and sub-claims 1, 3, 6, 7 and 8, characterized in that the depression of said pedal (12) and the resulting lifting of the second stem (41) produce the first engagement of the two pawls (33 and 37) of the rack (35); which Uterminates the first return of rack (35) to the initial position under the action of its spring (44), while said second rod (41), thanks to the third

aliquet (46) cooperating with its teeth (45), remains in its position.

10. Krire machine according to claim and sub-claims 1, 3 and 6 to 9, characterized in that after the first turn of said first rod (27), then 1.a release of said pedade (12 ), the rack (35) is brought back to the initial position, with said second rod (41) which slides against it, by a spring (49), which simultaneously clamps the teeth (45) of said second rod. its pawl (46).

11. Krire machine according to claim and sub-claims 1 and 3, characterized in that said first rod (27) has a portion (48) pro, reducing the release of the carriage (9).

12. Writing machine according to claim ti: on and sub-claims 1 and 3, characterized by another lever (26) which, when pressed, acts on said lever (29) carrying the pedal (12). ) and thus determines the lowering of said first rod (27).

13. Typewriter according to claim and sub-claims 1, 3 and 12, characterized in that said other lever (26) is provided with a pedal (13) whose lowering determines the raising of the other Pe dale (12) and lowering @ of said first rod (27).

14. Machine ä, 6cTire sgel according to the claim, characterized in co that the first lever (8) producing the first return of the carriage (9) is arranged to fagün ä, be actuated with the first .knee.

15. Typewriter according to claim, characterized in that the first roll of

striking (10) is arranged on a support (15) sliding on an axis (16).

16. AZachine à krire sel.on claim and sub-claim 15, characterized in that the aforesaid first support (15) presents an arm (17) provided with a roller (18) moving in a guide (19 ).

17. Krire machine according to claim and Ales s.ouo-claims 14, 15 and 16, charac teris6e in -that the first lever (8) aforesaid, intended to be aetionne by the first knee .de Operator, is fixed to the bra, (17) of the aforementioned support (15).

18. Krire machine according to claim, characterized in that the first lever used to produce the rotation of the striking roller is a lever for a pedal (11).

19. Krire machine according to claim, characterized in that its frame (5) carries a crank (14) intended to be actuated by the foot of the operator to rotate a shaft (50) on which cams (51 and 52) are given.

20. Typewriter according to. claim and sub-claim 19, characterized in co that the two aforesaid cams (51, 52) act on two levers (53, 54) each fixed on a shaft (55, 56) , these two shafts each carrying two bra.s (57, 59, respectively 58, 60) each carrying a roller (6), these rollers, in the rest position of said crank (14), not being in contact with the ground, while the 1st frame rests directly on the latter.