US1160665A - Stenographic type-writer. - Google Patents

Description

C SPIRO.

STENOGRQPHIC TYPE WRITER. APPLICATlON FILED DEC 2|. m4.

1 1 0,66. Patented Nov. 16, 1915.

CARBON PAPER 6 1 71;. a I

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sr'nlvoonnrnio TYPE-WRITER.

Specification of Letters I'atent.

Patented Nov. 16, 1915.

. Application filed December-21, 1914. Serial No. 878,288.

To alt to homizfmaiy c oncem-;'.-.

useful Improvements in-Stenographic Type- Writers, of which the following is-a specifie cation. V e I This invention" relates to .a stenog'raphic typewriter and particularly to a. constructlon wherein a series of typebarsareadapted to print eithersin'gly or 'a'plurality thereof simultaneously .to produce a proper steno-.

graphic symbol upon an automatically fed strip passing, over a-platen.

The invention has for an object to provide a platen having a pluralitybf independent tracks or fields, only'one thereof being normally in printing relation to the type'bars, and another adapted to be shifted into such relation when the first mentioned field is removed therefrom.

Another object of the invention'is to provide such a platen mounted in a carriage for matically fedin a rotary direction after each depression of a typebar. 1 Other and further objects and advantages of the invention will be hereinafter set forth and the novel features thereof set forth by the appended claims. I

' In the drawing Figure 1 is a vertical section on the line 1-1 of Fig. 2; Fig. 2 is a top plan; Fig. 3 is a detail of a printed strip, at and Fig. 4 is a detail of a modified form of the invention.

Like numerals of reference refer to like parts in the several figures of the drawing.

The numeral 10 designatesthe frame of en the typewriter which may be of any desired construction or configuration suitable for the purpose. Within this frame a series of integral typebars and key levers 11 are mounted upon a common pivot or fulcrum '45 12 and adapted to engage a. platen .13.

These typebars are provided with the usual keys 14 and may carry any desired characters for the Work to be accomplished. A space key15 is also mounted upon the pivot 12 to operate in the ordinary manner. This key and also the 'key levers are disposed above a universal ball or bar 16 which is formed at each end with lateral arms 17 mounted upon the pivot 12. The bail. and '56 levers engaging the same are normally held in raised position by a spring 18 arranged lateral movement and adapted to be autoupon at least one arm. The levers 11 form a key'lever at one end and a type bar at the other.

The platen 13 is pivotally mounted at 19 in a carriage 2O slidingly'supported upon the cross rods 21 carried by the frame 10. In the present instance no mechanism is shown-for accomplishing the sliding move ment of the carriage, the same being most simply efected by hand. The carriage is formed a 'ith a rearward extension or bracket 22 adapted to removably. support a rolled sheet or strip of paper as shown at 23. This strip is fed over a tension roll 2i yieldingly mounted on the carriage and held in contact with the platen'by a spring 25. The strip extends over a portion of the periphery of the. platen and beneath a binding rod 26 mounted in a forward extension 27 of the carriage.

The typ'ebars are arranged with their printing characters in'a line extending across a portion of the platen, indicated as the normal printing track or field 30, so as to print either one .or a plurality of characters simultaneously by a single action of the fingers upon the keys. At one side of this normal track 30 is 'an auxiliary track or field 31, ordinarily not used in writing, but adapted to be moved into alinement with the typebars as the normal field is moved out of such position. This provides a field on which corrections, interpolations, or other desired memorandum may be noted immediately adjacent the original text, instead of on a separate sheet as usual. A proper indicator 32 may be located upon the binding rod 26 to determine the extent of each of these fields.

The platen is provided with an automatic rotary step-by-step feed, preferably by a pawl 33 carried by the arms 17 of the universal bail. This feed may be effected by other means, but in the present illustration the pawl'33 extends across the front of the platen and fora greater length so as to be constantly in engagement with a ratchet 34 pressed at each downward movement of a.

type or space lever and in the restoring action of such lever the platen is fed forward one step so that the printed characters are arranged in parallel horizontal lines at one side of the strip when two fields are used as shown in Fig. 3. Under some conditions it may be desirable to use more than two fields, and the modified form of the invention shown in Fig. 4 illustrates a platen 38 having three fields, the normal printing field 3-) being at the center and the auxiliary fields it) at opposite sides thereof.

No inking ribbon mechanism is herein shown but any desired form may be used. lthas ordinarily been found sutlicient to use a soft platen with a thin paper sheet or strip and a carbon paper or cloth backing having its coated face next the paper as i11- dicated in Fig. 3. The impression from the raised type takes up suliicient carbon to make the character clearly visible through .the thin paper.

In stenographic typewriters now in use when interpolations or memorandum relating to the original text are made they mustbe placed upon separate sheet or at a place upon the printed sheet removed fron'i their application to said text and reference thereto made. This invention provides a normal writing field to receive the original text and a parallel auxiliary field adapted to be shifted immediately into alinement with the type-bars at their printing point to receive notation of any changes or interpolations directly adjacent the portion of the original text to which they relate. After such notation the platen may be at once shifted back to the normal field and the original text thereon continued. In this construction of machine either one key may be depressed to print or a plurality thereof simultaneously to produce a word symbol at a single stroke and after each stroke the paper is auto maticall y fed forward one space so that the characters are printed in parallel horizontal lines adjacent a blank or auxiliary field for the purposes set forth. The feed pawl is constantly in engagement with the platen ratchet so that the latter may be shifted to any position and still be automatically fed.

A number of details of construction have been shown and described but the invention is not specifically confined thereto but relates primarily to the structure embodying the use of the normal and auxiliary fields or tracks as defined by the appended claims.

What I claim is 1. In a: stenographic typewriter, type bars adapted to simultaneously print a. plurality of characters in a predetermined field, and a platen bodily shiftable alongside said field and adapted to have independent or distinct portions thereof brought over said type bars thereby providing independent. fields for writing, one of which is adapted to receive the complete main text to be written and the other notations in alinemenl with and referring to said text.

2. In a stenographic typewriter, type bars adapted to print a plurality of characters in a predetermined field and. a platen bodily shiftable alongrside said field and adapted to have independent or distinct portions thereof brought over said type bars thereby providing independentfields for writing at a right angle to the normal automatic platen feed, one of which is adapted to receive the complete main text to be written and the other notations in alineuient with and referring to said text.

3. In a stenographic typewriter, ty e bars adapted to simultaneously print a p nrality of characters in a predetermined field,

and a platen rotatable in the ordinal-v comindependent or distinct portions thereof brought over said type bars thereby providing independent fields for writing, one of which is adapted to receive the complete main text to be written and the other notations in alinemcnt with and referring to said text.

4. In a stenographic typewriter, type bars adapted to simultaneously print a. plurality of characters in a predetermined field, and a platen bodily shiftable alongside said field and having an automatic rotary feed and adapted to have independent or distinct portions thereof brought over said type bars thereby providing: independent fields for writing, one of which is adapted to receive the complete main text to be written and the other notations in alinement with and referring to said text.

5. In a stenographic typewriter, type bars adapted to simultaneously print a plurality of characters iii a predetermined field. and a normally longitudinally stationary platen bodily shiftable alongside said field and having an automatic rotary feed and adapted to have independent or distinct portions thereof brought over said type bars thereby providing independent fields for writing, one of which is adapted to receive the complete main text to be written and the other notations in alinement with and referring to said text.-

6. In a stenographic typewriter, type bars adapted to simultaneously print a plurality of characters in a predetermined field. a platen bodily shiftable alongside said field and adapted to have independent or distinct portions thereof brought over said type bars thereby providing inde 'iendent fields for writing, each covering the printing area. of all of the type bars, and means to permit the selective shifting of said platen to bring either field into printing position.

7. In a stenographic typewriter, type bars adapted to simultaneously print a plurality of characters in a predetermined field, a platen bodily shiftable alongside said field and adapted to have independent. or distinct portions thereof brought over said type bars thereby providing independent fields for writing, each COVBIIIlg' the printing area of all of the type bars, means to permit the selective longitudinal shifting of said platen to bring either field into printing position, and means controlled by said type bars for automatically rotating said platen when in either of said fields.

8. In a stenographic typewriter, type bars adapted to simultaneously print a plurality of characters in a predetermined .field, a platen bodily shiftable alongside said field and adapted to have independent or distinct portions thereof brought over said type bars thereby providing independent fields for writing, and a pawl fixed relative to the longitudinal'travel of the platen and extending longitudinally across the same to impart a step-by-step rotary feed thereto when either of said fields is in printing position.

9. In a stenographic typewriter, type bars adapted tosimultaneously print a plurality of cnaracters in a predetermined field, a

- platen bodily shiftable alongside said field and adapted to have independent or distinct portions thereof brought over said type bars thereby providing independent fields for writing, a pawl fixed relative to the longitudinal travel of the platen and extending longitudinally across the same to impart a step-by-step rotary feed thereto when either of said fields is in printing position, and means actuated by said type bars for automatically operating said pawl.

10. In a stenographic typewriter, type bars, a platen having aplurality of fields and mounted for longitudinal movement to shift either of said fields into alinement withsaid typebars, a universal bail disposed beneath and actuated by said type bars, and a pawl carried by said bail and extending longitudinallyacross said platen to' impart a rotary step feed to said platen when either field is in printing position.

11. In a stenographic typewriter, a series of type bars pivoted upon a common fulcrum, a universal'bail disposed beneath and actuated by said type bars, a sliding carriage, a platen pivoted therein and having a plurality of fields one of which is normally in printing relation to said type bars, a feed ratchet upon said platen, and a feed pawl pivoted on said universal bail and enment of said platen.

12. In a stenographic typewriter, a series of type bars pivoted upon a common fulcrum, a universal bail pivoted on said fulgaging'said ratchet to effect a rotary movecrum and disposed beneath and actuated by said type bars, a sliding carriage, a platen pivoted therein provided with a ratchet and having a plurality-of fields one-of which is normally in printing relation to said type bars, and a U-shaped feed pawl extendinging tension roll engaging said platen tocontrol the paper feed thereon, a feed ratchet carried by said platen, and a pawl engaging said ratchet and actuated by said universal bail to effect a rotary movement of said platen. I

In testimony whereof I afiix my signature in presence of two witnesses.

' CHARLES SPIRO. "Witnesses: STEPHEN F. CURTIS, E. F. TIEDEMAN.

@opllea of this patent may be obtallnedt for live cents each, by addressing the Commissioner of Patents, Washington, D. G.

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