US2603336A - Pocket typewriter with rotary and translatory work support - Google Patents

Description

M. JULLIARD July 15, 1952 POCKET TYPEWRITER WITH ROTARY AND TRANSLATORY WORK SUPPORT 4- Sheetsheet 1 Filed July 24, 1948 M. JULLIARD July 15, 1952 POCKET TYPEWRITER WITH ROTARY AND TRANSLATORY WORK SUPPORT 4 Sheets-Sheet 5 Filed July 24, 1948 M. JULLIARD July 15, 1952 POCKET TYPEWRITER WITH ROTARY AND TRANSLATORY WORK SUPPORT 4 Sheets-Sheet 4 Filed July 24, 1948 Patented July 15, 1952 POCKET TYPEWRITER WITH ROTARY AND TRANSLATORY WORK SUPPORT Maurice J ulliard, Paris, France pplication July 24, 1948, Serial No. 40,503

In France April 28, 1948 6 Claims.

The object of thepresent invention isa typewriter so' designed as to have small dimensions, to such a degree that it can be contained in an average size pocket and can be utilized without any support, being simply'held'in the hand.

To thiseifect, in accordance with a first characteristic of the invention, the usual typing roller, which is heavy and cumbersome and which causes an unbalance of the machine owing to the excess weight of the rear part is omitted; the types, instead of being recorded along parallel lines, as'j usual, are recordedalong a curved line Winding around a center and approaching gradually closer to this center.

To cause this curvilinear typing, fthe sheet of paper,- preferably circular, is associated with a supporting plate which is itself preferably circular and driven in va rotational'movement around its center and, simultaneously in a rectilinear translational motion, each step by'step displacement beingcausedby a stroke or other equivalent action on a key with a'view to the recording of a character or :to the 'obtention of a spacing.

This result maybe obtained by causing a toothed pinion capable of rotating aroundits axis and of advancing by one tootheach time a key is acted upon,'to gear with a series of holes suitably spaced on therear face of the support: ing plate and located along a curve corresponding to that along which the letters must be recorded said plate being guided so as 'tobe able to move according to a rectilinear motion of translation whilepivoting about its center.

-'To' this effect/the supporting plate may be mounted rotationally around an axis carried by a frame which can itself'lslide freely according to a rectilinear motion -pf-tianslation; V -Other-features ofxtheinvention willfbe apparent from the following description of a 'partic ular type of embodiment with reference ;to the appended drawingswherein'z g j Figure 1 is a view in plan.

Figure 2 is a view from underneath.

Figure 3 is a view in longitudinal section, along line I IL-III oftheprevious iigurcsl s Figures 4 and 5 aresidj view; showing respectively the machine 'in its operatiiigcondiv tion and opened for changing the pa'per;

Figure sh wse deta l;

Figure? shows the paper usedf V Figure 8 shows the same paper foldedigcon ing bar 3 through a flexible rod device .4 such, for instance, as the one which is an object of my copending patent application Serial No. 40,501, filed July 24, 1948.

The characters are recorded on the sheet of paper 5 by means of the inked ribbon 6 whose particular features will be indicated later; every time a key is acted upon, a forward displacement of the transverse rod 1 is caused, which rotates the lever 8 actuating the bar 9 carrying a pawl i 6 and rotates the toothed wheel ll by one tooth; this toothed wheel l l is rotationally associated with a shaft l2 whereon is keyed the conical pinion l 3 engaging the conical pinion M keyed on the shaft 15 atthe other end of which is keyed the pin carrying pinion l6; 1 a

The pin carrying pinion It may have its pins engaged in the holes ll. arranged in the supporting plate 18 along a curve which winds around the center of said plate, approachingc'onstantly closer to said center; thiscenter is materialized by a part 19 with which the supporting" plate is associated for motions of rotation and translation, comprising a square head 20 which drives rotationally the sheetsof paper 2 l and a circular base'22 rotationally mounted inthe transverse plate 23, extended on both sides by longitudinal arms 24 which guide its longitudinal sliding.

The sheets of paper 2|, which arepircular, are provided, at their center, with aquadrangular perforation 25 engaged on the square head 20; they are pushed upwards *bythe four flat springs 26, with thein'terposition .ofa paste-board plate 26a which serves themas a base, and held at the upper part by dome 21 covering the square head 20 andpushed towards the latter by the fiat spring 28. a l

' Between two superposed sheets andbelow the upper sheet 5, the striker plate 29- is'inserted, carried by the transverse rod 29a which also carrie's akniie til whose function will be explained presently. a Y r The sheets of paper; 21' preferably consist. of discs 2lb, 21c, 2ld, joined togetherzby gluing. 3|; acommon portion-ooftpaper may also be left, advantageously, commonzto thervarious discs 211;, 21c, 21d; andla line {of perforationsgil may be provided. which facilitates their v separation said separation bein fzr f eg ed automatica ly by h kn f gfifi dur nsthe .l rota ion 10 othe supncrt ns pla 178a,. s, or o s. 0th P, a rotate at-the sarnetiinei; "'Ifhe discs ZIb, ;2lc, {lid g connected togethepas-has j ust been-described are folded concertinaewise and constiaper whose;-lqdadrangular figagedon the square head 3 20 after the dome 21 has been lifted against the opposing action of the flat spring 28 and after the casing has been opened as shown in Figure 5.

To withdraw the sheet of paper which has just been typewritten and which has been separated from the adjacent sheet by the knife 30, it is only necessary to lift the dome 21 and to exert a pull on. the edge of the sheet raised by the striker plate 29; a cam device or the like may be provided to cause the raising of said dome 21.

The inked ribbon 6 is an endless ribbon passing underneath the guide 32 of the type carry-,

ing bars 3, held by parts 33; it passes over the rollers 34 provided at each of the four corners of the machine; it is driven in parallel displacement by the knurled pinion 35, itself associated in rotation with the conical pinion 36 engaged with another conical pinion 36a itself keyed on an extension 31 of the shaft [5. Said ribbon is pressed against the knurled pinion 35 by a roller 38 carried by a part 39 attached at the end of a fiat spring 40; another flat spring 4| carries a part 42 provided with a roller which ensures the tension of the inked ribbon 6.

In the variant shown in Figure 9, the casing 43 comprises a recess 44 corresponding to each one of the keys and the latter consist of fingers 45 arranged in each of the recesses and not extending above the upper surface of the casin 43; these fingers 45 are extensions of the flexible rods 4 for the'control of the type carrying bars; with this device, instead of striking the key it-is pulled forward-with the finger. It will be realized that such an arrangement offers the double advantage of eliminating any projecting member, which is awkward for a machine designed to be carried in a pocket, and of facilitating for the user, the finding-of the keys by the position of the corresponding recesses which he can feel with thefingers instead of being obliged to look at them. It may be used with a control such as that shown in the previous figures.

It must be understood that the type of embodiment of the invention described above with reference to the appended drawing has been given by way of indicative and non-limitative example and that numerous variants may be designed within-the scope of the present invention.

What I claim is: l

1. A pocket typewriter comprising keys corresponding to the various letters, pivoted type carrying levers, linking strips between the keys and the pivoted levers to set these levers in motion by the action of the keys, a supporting plate endowed both with a rotational motion and a rectilinear translational motion for receiving circular sheets of paper on which the typing is to be effected along a curved line around the center of rotation, and means for causing, by the action of the keys, ,a step by step rotational and translational displacement of the .plate and of the sheets of paper it carries at each character recording or spacing operation.

2. A pocket typewriter comprising keys corresponding to the various letters, pivoted type carrying levers, linking strips between the keys and the pivoted levers to set these levers in motion under the action of thekeys, a centrally pivoted supporting plate for carrying circular sheets of rotatory pinion provided with pins engaging with the holes of the supporting plate, means for rotating said pinion by one tooth at each stroke on a key, and lateral guides for said supporting plate so that the latter may be displaced according to a translational motion at the same time that it pivots around its pivot center.

3. A pocket typewriter comprising keys corresponding to the various letters, pivoted type carrying levers, linking strips between the keys and the pivoted levers to set these levers in motion under the action or the keys, a supporting plate endowed both with a rotational motion and a rectilinear translational motion for supporting circular sheets of paper on which the typing takes place along a curved line around the center of rotation, means for causing, by the action of the keys, a step by step displacement of the plate and of the sheets of paper it carries at each recording or spacing operation, an endless inking ribbon, and means including a rotary knurled pinion for advancing said ribbon under the action of the keys.

4. A pocket typewriter comprising keys corresponding to the various letters, pivoted type carrying levers, linking strips between thekeys and the pivoted levers to set these levers in motion under the action of the keys, a supporting plate endowed both with a rotational motion and a rectilinear translational motion for carrying circular sheets of paper whereon the typing takes place along a curved line about the center of rotation, vmeans for causing, by the action of the keys, a step by step displacement of the plate and of the sheets of paper it carries at each recording or spacing operation, and a striker plate engaged under the upper paper sheet to' separate this sheet from the other sheets.

5. A typewriter comprising a base plate provided with recesses whose number corresponds to that of the keys, keys corresponding to the various letters and consisting of fingers housed inside said recesses, pivoted type carrying levers, linking strips rigidly attached to the keys and connected to the pivoted levers to set these levers in motion under'the action .of said keys, a supporting plate endowed both with a rotational motion and a rectilinear translational motion for supporting circular sheets of paper whereon the typing takes places along a curved line around the center of rotation and means for causing. by the action of the keys, a step by step displacement of the plate and of .the sheets of paper it carries at each recording or spacing operation.

6. In a typewriter, a rotatory and transversely movable support for carrying a stack of circular paper sheets whereon typing is to be effected along a curved line winding around the center of rotation and approaching uniformly closer thereto, in combination with a lmife engageable under the top paper sheet for producing automatically the separation of-this sheet in response to the rotation of the support.

MAURICE JULLIEARD. assurances CITED The following references are of record in the file of this 'patent: r zgrxf. 7 1

UNITED s'rAr s ryA'rnutrs,

Number Name is 'Date- 997,583- Remsnider 'Ju1 "11, 1911 1,421,074 Gaunt e Ju ne 2-7, 1922 Underwoo 411g. 20, 929

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