US1688367A - Typewriting machine - Google Patents

Description

Oct. 23, 1928.

J, WALDHEIM TYPEWRITING MACHNE.

Patented oet. 23, 1928.*

UNITED sine-'riss PATENT- OFFICE. Y

\v JOHN WA'LDHEII, 0l' ELIZABETH, NEW JERSEY, ASSIGNOB T O l T V I.

UNDEBWOOD ELLIOTT .FISHER COMPANY, lORNE'W YORK, N. Y., A'COBFPORATIN' 0F DELAWARE.

TYPEWRITING mcnnm.- y v -appuoationmea Jury as, 1925. seal ne. 45,530.

This invention relates generally to typewriting machines, and is directed particularly to an auxiliary bichromeribbon. The invention has particular applicationin making out work-sheets, all requiring certain' portions or columns to be typed V in a given color and other portionsor columns to be typed in a contrastnig color.

Oneof the features of the present invention consists in interleavin an auxiliary or secondary two-color ribbon 'etween an outer or original sheet and a duplicate or roof sheet,\ so that the duplicate-sheet wil be typed conjointlywith the outer sheet. The

auxiliary ribbon extends across the platen, in interleavedrelation with the work-sheets,

said ribbon being unwound from a'supplyspool, and then progressively wound onto another spoolat each line-spacing operation of the platen. `In passing across the platen the ribbon is subjected to a series of oldin or bending operations, whereby a portion o the length of the ribbon takes such a course that the color field of the ribbon which is upperment along the printing line of the platen. from one. end to-the other thereof. The# I I bichrome device may also bemoved all the 40 way across theplaten, so as to occupy a position' adjacent either end thereof, such move' ment 'effecting a complete reversalottlie colors. and red', and `it is desired to 'type all in black` the ribben-inverting or' bichromemeans is moved -to oneend of theplaten, "and, Vvice versa, if red is desired. exclusively, the inverting means' is' moved to. the opposite end of the platen. There mayalso be provided -N a secondbichromedevice or -ribbon-'invertmg means for invertmg the ribbon a secondtipe, thus'producingan intermediate zone y sheet,leaving a portion oft e duplicate- Vextremei'left ofthe platen.

lace. at any selected point, and

the ribbon.

For instance ifthe colors are black -of'a diiieren't color than the zones adjacent both sides thereof. i

Another. eature of the invention is the provision of a ribbon-guiding means used in conjunction with the bichrome device, the object being to invert the ribbon to produce twoV diifela/nt color-fields adjacent the printing line, and -also to elevate Va portion of the ribbon to a point above the printing-field, thus providing -clear space along a portion of the printi 'g line, whereby only the vmain ribbon of the machine types u on the outerv sheet untyped. t Y

Other features and advantages will hereinafter appean In the accompanying drawings, Figure l is a front elevation of the platen 70 and the platen-frame of a typewriting ma chine showing the invention attached thereto. F'gure 2 is a vertical section on the line 2 2 of Figure 1.

Figure 3 is a vertical section, through the ribbon-'inverting means, on the line 3- 3 of Figurel. 7

Figure 4 is a view, showing the ribbon-inverting means 4shifted to aipoint adjacent the Fi' re 5 is a similar view to Fi 4: showlg the 'ribbon-inverting means to the extreme right of the platen. e

Figure 6 is a perspective view, broken away and extended to illustrate the construction of the-ribbon-inverting means and the manner of threading the ink-ribbon therethrough. Figure 7 is a view, showing a pair of ribbon-inverting devices, for doubly inverting' Figure Slis a view, showing a ribbon-in-- verting means and also means for elevating .a portion of the 'ribbon-abov@ the printing- Referring particularly lto Figures .1 and 2 of the drawings', 10 represents a record or outer sheet and 11 va duplicate or proof sheet, both of the sh ts being. fed around-a platen 12 and brouglil;e up to typing position to 1re-.- ceive impressions of 13; The platen 12 has a platen-shaft 14 Vmounted inend frames 15 of'a platen-frame, designated generally, -at 16.' A platei1-linespace ratchetwheel 17 co-operates with line-space'mecha- A Figure 6.),

.of the leg nism (not shown) to line-space the platen in the usual way.

A ribbon 18 includes two fields of diierent characteristics, which, for the purpose of illustrating the invention, may be considered as an upper or black field 19 and a lower or red field 20, such ribbon being generally termed a bichrome ribbon. Ribbon-vibrating mechanism, including ribbon-shifting means, not shown but which is well understood in the art, is effective to raise the ribbon 18 to the printing-line A upon driving the types 13 toward the platen, and the ribbon-shifting lmeans is effective to bring either the black field 19 or the red field 20 to the printing-line. Interleaved with the sheets 10 and 11, and extending along the printing-line of the platen,

there is an auxiliary or secondary ribbon 21,'

including a red field 22 and a black field 23, and clips or plates 24 and 25, respectively at the left and the right ends of the platen, have diagonal slots 26, through which the ribbon 21 is `threaded, the diagonal slots being effective to turn or Ybend the ribbon 21 at right angles, so as to be unwound from a spool 27, preferably at the right of the platen, and wound then onto a spool-28 at the left of the platen.

In view of the black and also an area or columns to be typed in red, means is provided for inverting the ribbon 21 at a predetermined point along the platen so as to bring the color field which is uppermost on one side of said point to the lowermost position on the opposite side of said point. Thus all of the typed matter written on the original sheet 19in different colors by the main ribbon 18 may be duplicated in the same colors on the proof-sheet 11`. For inverting the ribbon, there is provided a clip or rider 29,which is preferably in the form of a yoke 30, arranged to embrace and straddle a rod 31, extending across the platen 12, adjacent the top thereof, the ends of the rod being secured to the platen-frame, as shown at 32. The back of the yoke 30 is bent in to form a shoulder 33 for engaging the under` side of the rod 31, the shoulder 33 acting as a guide against the rod to hold the rider 29 in proper position. Extending downward from the yoke 30 there is a rear wall or leg 34 and a front wall or leg 35, the legs being` preferably fastened together by any suitable means such as rivets 29. The bottom or the leg 34 has a diagonal edge 36 and the front leg has an oppositely directed diagonal edge 37. The ribbon 21 is fed leftward across the platen from the s ool 27, thence over the diagonal edge 36 o the leg 34, the ribbon partaking of a right-angular bend. and rising upwa-.rd at the rear of said leg 34, and then threaded forwardly through a slot 38. (See arrows in The ribbon is then threaded slot 39, adjacent the upper'portion through a 35, thence downward at thefront fact that the sheetl() usually includes an area or columns to be typed in vprogressively moved across the platen to rbon in tightened condition across of said leg 35, until it reachesthe diagonal vtainng ears 34n and 35a may be formed as parts, respectively, ofthe walls or legs 34 and 35. A set-screw 40, passing in threaded relation through the yoke 30 and into engagement with the rod 31, is effective to hold the ribbon-inverting rider 29 in any selected position along the rod 31. It will beseen,upon shifting the rider 29 along the platenathat the proportionate areas of different color fieldsto be brought to the printing-line may be varied, at will, and' that said rider may be set at any position along the printing-line A where color-shiftingof the main ribbon 18 is to be made. Due to the numerous number of bends or angles taken by said ribbon in proceeding from one spool to the inverting clip and then to the other spool, any ordinary ribbon-feeding mechanism would obviously be inadequate to feed the ribbon. In order to supply the driving power needed to feed the ribbon across the platen, there is provid ed a ratchet-and-pawl mechanism upon the spool 28. Referring to Figure 2, the reference numeiial 41 indicates a ratchet-wheel attached to a shaft or pintle 42, upon which the spool 28 is mounted. A line-space slide 43 is mounted on the left end fram@ 15 o the platenframe' 16, and carries a standard 44, upon which a pawl 45is pivoted at 46. A sprng 47, attached to the pawl by a pin 48 and to the standard b v a pin 49, is effective to hold the pawl 45 against a stop-pin 50 in such manner that said pawl is directed toward the teeth 51 of the ratchet-wheel 41. It will be seen, upon moving ythe line-space slide 43 inward, toward the' platen, that the pawl 45 will be brought into engagement with one ot the teeth 51. and thereby effect rotation of the spool 28, thus causing the ribbon to be bring fresh portions thereof to the print-ini!- point of the types 13. A detent 52 may be used as a means for preventing loose motion of the spool 28, and thereby maintain the ribthe iace of the platen, To yaid in inserting the sheets .around the platen. all of the auxiliary-ribbonmechanism is vswingable to an elevated position above the platen, thereby permitting the lea-.ding edge of the proof-sheet to be fed, upward around the platen without interference with the ribbon 21. For this purpose. the spools 27 and 28, the rod 31 carrying the rider 29, and the mechanism for feeding the ribbon 21 are mounted upon a swing-frame 53, pivi lll oted at 54, upon .upstanding ears 5 5, mountconvenientposition to the rod 31, lenablingv the swing-frame 53 to be easily raised. The

sheets and '11 may then be led downward over a rear paper-table 57, and between the usual feed-rolls 58 and the platen 12 to typing position. Attention is drawn to Figure 4, -Wherein thel ribbon-inverting rider 29 has 'been shifted to the extreme lleft end of the platen, and it will be observed'A that such ield 22 to the printing-line A. the black field being, of course, out of use. In Figure 5 theV ribbon-inverting' rider 29 has been moved to the extreme right of the'platen, in which case the reverse condition is brought about, that is, the black field ofsaid ribbon- 21v has been broughtto the printing-line across the entire printing-length of the platen. Thus, it will be seen that the present `device Voilers an ex tremely simple and eii'ective means for quickly changing the color of a bichrome ribbon. Sometimes it becomes desirable to write i upon a. certaixrportion of a sheet in-one c olor,

then to continue in another color for a cer'- tain distance, and then revert to the original A color.` For accomplishing this result, two

. ribbon-invertimer riders such. as already described are used, it being obvious that use of ing-line.. It will also' be apparent that said intermediate color-zone may be disposed! at any selected point along the platen.

l 29, effective in' the described -way to dispose- Referring tov Figure` 8.. of the drawings, there is illustrated a ribbon-inverting rider `twovdiierent color-zones at the printing-line and in alignment with one another.` There is also slidably mounted upon the rod 31-J another clip 59, differing ,somewhat from the clip 29. The clip 59 has a diagonal lower edge 60, againstwhich the ribbon 21 is ,bent to Lturn the sameat right angles, said ribbon then rising upward alongthe `clip 59.- A y diagonal slotl inthe clip 59 redirects the ribbon'l at right angles and `thence directly to the right, so that the ribbon isdisposed.

suiiiciently above the printingfgline that'the types 13are effective only to cause' typing to appear inthe regular way on the outer sheet.

v10. leaving the proof-sheet 11 untyped at -,said portioniremainin'g uncovered bv reason of the elevatedposition of the auxiliary ribbon 21.

Variations maybe remrted to within the means for shifting s aid ribbon,

scope of the inventiom and portions of the im rovements may be used without others.

aving thus' described my invention, I claim:

1. In a typewriting machine, the combination with a carriage, a platen, a main bi-v chrome ribbon. and ribbon-shifting means therefor, o an auxiliary .bichrome ribbon mounted upon the carriage to be interposed between a record-sheet and a'proo-sheet, and

auxiliary .ribbon-shifting means adjustable 'longitudinally of the platen for inverting the shifting has inverted the ribbon 21 throughout its entire length, thus bringing the .red

color-ields'of said auxiliary ribbon at any point along the line of print, said auxiliary ribbon-shifting means being mounted on the carriage'v and the auxiliary. ribbon being threaded therethrough, whereby all .typed matter appearing in the two colors of the main bichrome ribbon will be duplicated on' the proof-sheet by the auxiliary bichrome'ribbon.

' 2. In a 'typewriting machine,`the combination with a carriage, a platen and a pri mary bichrome ribbon-mechanism including oi a second'.-

ary bichrome ribbon mounted upon the carriage and covering the line of print vetween `a record-sheet and aproof-sheet therebcneath,

means for feeding said secondary ribbon longitudinally, and a ribbon-guide movableA with the carriageV and adjustable along the .platen for inverting said secondary ribbon,

the ribbon being threaded through said guide l and transposed thereby, whereby -the field which is lowermost on one side of the guideL will be uppermostat the opposite'side of said guide.`

3. Ima typewriting machine, the combination with a carriage, a platen and a primary bichrome ribbon-ield-shifting mechanism, of a secondary ribbon .mounted upon the carriage to coverthe longitudinal printing-line and in interleaved relation with a recordsheet and a proof-sheet brought to .typing position around the platen, and a ribbon-fieldshifting guide being slidably mounted upon the carriage and effective .to invert said secondary .ribbon `at any7 selected point along the line of print, so as to .coloperate withv the pri' mary ribbon in typing the same colors upon the proof-sheetlas said primary-ribbon types uppnIt-he record-sheet. bination with a` carriage, a platen and a. main ribbon-inking mechanism, of an auxiliary inking ribbon mdunted upon the carriage to bra-interleaved between work-sheets to cover the l ongitudinal printing-line-of the platen.

sadfiauxiliary ribbon having longitudinal folding means movable with Ithe carriage and adjustable along the platen Vto reverse the ide for the secondary ribbon, said n a typewriting machine, the coini longitudinal fields ofthe auxiliary ribbon.

' atwilh'whereby typing in colors upon oncwork-sheet by the main'ribbon will be duplicated upon another work-sheet by the auxiliary ribbon.

5. In a typewriting machine, the combination witha platen, of an auxiliary inkribbon to be interleaved with work-sheets brought to typing position around'theplaten, said ribbon havin@ longitudinally-extending fields of different (ilxaracteristics,guide-means for inverting the ribbon to bring opposite fields thereof in horizontal alignment along the printing-line, and a second-guide-means for reinverting the ribbon, to provide an intermediate length of ribbon between the guides, of a different characteristic than the ribbon on the outer sides of said guides.

6. In a typewriting machine, the combination with a platen, of an auxiliary ink-ribbon having longitudinally-extending elds of differenty characteristics, guide-means for directing the ribbon so as to bring opposite fields thereof in horizontal alignment alonga portion of the platen at the printing-line, and means for redirecting the ribbon, .whereby to dispose the same above the printing-line,

' along another portion of thev platen.-

7. In a typewriting,machine,.the combination with a platen, of an auxiliary ink-ribbon having longitudinally-extending fields of diferent characteristics,l a support extending alone' the platen, and a dvice slidingly adjusta le along Saidsupport, said device including means for directing the ribbon,

whereby to effect Van inversion of the c posite fields thereof, at any selected point a 'ong l the platen,and means for clamping said: de-

vice-in any position along the support.

8. In a typewritmg machine, the combination with a carriage and a platen, of an inking ribbon having longitudinal fields of different characteristics, a cross-bar movable with the carriage, and guiding means for the ribbon, said guiding means including an adjustable device movable along the vcross-bar and having a series of diagonal edges, whereby the ribbon changes in folding around said edges is thereby inverted, so that the lowermostfield on o ne side of the device is uppermost on the opposite side of said device.I

9. In a typewriting machine, the combination with'a platen, of an inking ribbon having longitudinal fields of different characteristics, a cross-bar movable with the carriage, ribbon-spools adjacent the opposite ends of the platen, guidesl adjacent said spools fordirecting the ribbon from spool to spool to cover thelongitudinal printing line, land means adjustable along said cross-bar and between said ribbon-spools for reversing the ribbon fields at any point along the line of print, so that the field which is lowermost on one side of said ribbon-reversing means is uppermost on the opposite side ofsaid means.

10. In a typewriting machine, the combination with a platen and line-spacing mechanism therefor, of an inking ribbon having longitudinal elds of different characteristics,

ribbon-spools adjacent the opposite ends of the platen,fguides adjacent said spools for directing the ribbon from spool to spool ina .straight line over the typing position, whereby the lower field of the ribbon covers the printing line, and means mounted upon the carriage and adjustable between said ribbonthe platen to travel therewith, the'lower field l thereof to cover the printing line, and ribbonfield-changing means movable throughout the entire length of said platen, said field-changing means effecting-a reversal ofthe ribbonelds, whereby the lowermost ield on one side of said ribbon-field-changing means is the uppermost field on the opposite side thereof.

,12. In a typew-riting machine, the combination with-a carriage and a platen, of an inking ribbon having longitudinal fields of different characteristics, means for directing the-'ribbon so as to bring-eitherl ribbon-field thereof into horizontal alignment to cover the printing line of the platen, said means including a rod mounted-upon the carriage parallel with the platen, and a yoke-shaped ribbon-field changing guide including a pair of downwardlyextending legs, said legs terminating in oppolill.

sitely-directed diagonal edges, each leg having a horizontal slot over the diagonal edge thereof, the ribbon being folded around the diagonal edge of one leg and through the .horizontal slotthereof, thence through the hori- 4zontal slot of the other leg, and folded around ing line, said ribbon being 'threaded through tivelyl reverse the ribbon-fields at the printsaidreversing means and folded' overjhe same, and the latter bei-ng shiftable along the platenl to effect such reversal of the ribbon.

14.` In a typewriting machine, the combination with a platen, of an auxiliary ink-ribbon havinglongitudinally-extendin elds of dilferent characteristics, a ro extending .along the platen, and a ribbon-guide slidin'gy adjustable along said rod, the guide inclu ing a yoke fitting around the rod and downwardly-extending legs, said legs being curved to conform to the curvature of the platen, and

said legs includin means fordirecting the ribbon, whereby t e lowermost field on one side of said legs is the uppermost ieldon the opposite side of said legs. v '15. In a typewriting machine, the combination with a platen, of an auxiliary ink-ribbon having longitudinally-extendin fields of Adifferent characteristics dispose along the printing-line, and a pair of -ribbonuides movable along the platen, the guides e ecting a double inversionof the ribbon, whereby an intermediate field of a different characteristic from that on either side thereof is brou ht to the printing-line, said ribbon-guides eng movable along the platen independentlyof one another, wherebyl to locate the position of andvary the length of saidintermediate field.

t 16. In a typewriting machine, the combina- ,Y

tion with a platen, of an auxiliary ink-ribbon having longitudinally-extending elds of different characteristics, a ribbon-guide movy able along the platen said ribbon-guide elective to direct the ribbon, wherebiythe field which is lowermost on one side o th'eguide is uppermost on the opposite side of the guide, the lower portion of the ribbon covering the printing-line ofthe platen, and a second guide for disposing a length -of said ribbon above theprinting-line, said guides being movable 40 along the platen in ependently of one another, whereby the len ths of the o positely-disposed fields may e varied A,an the extent of the printing-line. uncovered by reason of the second guide also varied.

17. In a typewrting machine,"the combination with a carriage and' a platen, of a .bichrome inking ribbon movable with the carriage and having one field thereof normal# ly in longitudinalalignment with the rintling-line of the platen, and a ribbon-fie d re# verser including ribbon-deiiecting faces operative to turn the ribbon and reverse the relative positions of the ribbon-fields with'ut changing thelongitudinal alignment of the ribbon tothe printing-line.

' 18. In a typewriting machine, the combination with a carriage and a platen, of a bicrome inkin ribbon movable with the car-- riage and having one field thereof normally in longitudinal alignment with the printingline ofthe platen, and a ribbon-field reverserl including ribbon-deflecting faces operatlve to' turn the'ribbon and reversethe relative posif' y tions of theribbon-fields without changing the longitudinal alignment of the ribbon to of ribbon-field changingl devices mounted n upon the carriage, through each of which the Vribbon is threaded and folded, each of said devices being settable independently of the other to reverse the previous setting of the color-field of the ribbon whereb sections of the printing line may be type alternately in different colors without the attention .of ythe operator.

20. vIn a typewriting machine, the combination with a carriage and a platen for holding a record-sheet having a succession of column-'areas in each line to receive typed records alternately in .distinctive colors, of a ribbon on the carriage and having two colorelds and a iixed longitudinal feeding path, with one ribbon-field normally covering the whole typing-line of. a recordfsheet, and a plurality lof ribbon-Iield-changing devices in-- dependently settable along the platen on the carriage, the ribbonbeing threaded through and folding over both devices, and each device operative to reverse the ribbon-fields and present a color-section for eachvcolumn-are'a of the record-sheet that is distinctive for the character of the record printed in each column. .A

21. In a typewriting machine, the combination with a carriage and a platen, of a ribbon having two color-fields and a fixed long'i f tudinal feedin path, with one ribbon-field normally covermg the whole printing-line of a record-sheet, and a pair of ribbon-field changing devices independently settable along the platen on the carriage, one device operative to reverse the normal lfields of the ribbon at the printing-line, and the other device operative to reverse the fields set b the .first device to rest/'ore the ribbon-fiel s to their normal positions.

, 22.' In a' typewriting machine, the combination witha carriage and a platen, of -a twocolor ribbon carried by spools on-the carriage vand guided for a single stretch over the entire printin'gsline of the platen, and means mounted upon the carriage between the ends of the platen andoperative upon'the ribbon to divide theV ribbon-stretch between the spools into two separate stretches, the stretch on one side of said means presenting to the printing-line ribbon-lields that are reverse to the ribbon-fields'of the stretch upon the other side of said means.. 1

23. In a typewriting machine, the combinat-ion with a carriage, typing elements, and present in .longitudinal ali ment different ribbon-fields of different characteristics, of a' elds of the ribbon, Whereryl' two different ribbon-field reverser movable with the carcolors may be. typed upon the same line of 10 rage and movable independently along the print. Within typing areas predetermined by 5 carriage to predetermine the point when the the setting of the rbbon-eld reverser.

reversal of the ribbon-fields shall take place, said rbbon-eld reverses being operative to JOHN WALDHEIM.

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