US2114296A - Typewriter - Google Patents

Description

April 19, 193s.

B. L. GREEN TYPEWRITER e sheets-sheet 1 Filed July 20, 1935 illlm uFORDL QREEA/ gmc/Moz,

B. L.. GREEN 'April 19, 1938.

TYPEWRITER Filed July 20, 1935 6 Shewbs--SheerI 3 uFonpLGfesEN me/WISO@ 6 Sheets-Sheet 4 BUFORD LGQEEN TYPEWRITER B. L. GREEN April 19, 1938.

Filed July 20, 1935 B. l., GREEN April 19, 193s.

TYPEWRITER Filed July 20, 1935 6 Sheets-Sheet 5 UFono LGREEN lnvenlor B. L. GREEN April 19, 1938.

TYPEWRITER Filed July 20, 1955 6 Sheets-Sheet 6 :Jv/Wentorf:

Patented Apro 1Q, i193@ narran eral-ias alliages rrrnwnrraa niord lli. Green, harlotte, N. C.. application any 2o, ieee, senat No. ratei 13 Claims,

This invention relates to a coding apparatus and more especially to a coding apparatus adapted to he used in connection with a manually operated typewriter such as tt shown in my copending patent application Serial No. 712,065, hled Febmary 19, 193e.

Heretoiore, in preparing control sheet for transniitting a set of electrical impulses to a character reproducing machine for reproducing a printed sheet such as line-casting machines, typesetting machines and the like, as disclosed in my cofpending patent applications Serial No. 4104,331, filed November 2, 1929, Patent No. 2,067,182, of January 12, 1937; Serial No. 517,171, lled Rbruary 12, 1931, Patent 2,067,184 of January'lZ, 19E? and Serial No. 688,753, led September 9, 1934;, Patent No. 2,067,186 of January 12, 1937; it

has been a very dimcult problem to obtain perfect alinement of the cell control areas. The reason suit of the legible character and the code character being placed on the saine type bar and since this type bar is pivoted at a point several inches from the point of printing, a certain amount of variation in the printing will naturally result, on account of slight mis-alinernent of type bars thereby causing the control sheet to be inaccurate and when placed in a character reproducing machine a mis-selection in the character would 30 occasionally result. By providing a separate code printing means to print one or more cell control shaded portions on the control sheet while the type vbars print the legible character, perfect alinement ofthe code character is obtained, even though the legible character may be out of line.

it is, therefore, an object of this invention to provide a means for preparing a control sheet on a typewriter having means for printing a legible character and an independent means for printing .m cell controls simultaneouslywith the printing of the legible character.

It is another object of this invention to provide in a manually operated typewriter two independent means for simultaneously printing code characters and legible characters and also means for preventing the printing of code and legible characters when a functional key bar is operated.

The herein disclosed structure is very similar to the structure shown inmy co-pending patent application Serial N-,24,064, led May 29, 1935, the main dierence being that in the said application the separate code printing means were associated with a typewriter operated by electrical impulses, whereas, the present structure shows these separate code printing bars associated with Cal no for this error in alinement chiefly was the re- I (CB. 19T-mil) a manually operated typewriter, the principle of printing being the saine in both applications, but the present structure shows how the separate printing bars are selected and actuated upon manual actuation of a hey bar or a type bar. vMany of the features are not fully sho-wn in the present drawings, as ythese details are more fully shown in said co-pending application, Serial No. 24,064.

. Some of the objects of the invention having been stated, other objects will appear as the description proceeds when taken in connection with the accompanying drawings, in whichz Figure l is a top plan view of the front portion oi a typewriter showing my invention applied thereto and omitting the key bars;

Figure 2 is a sectional elevation taken along line 2-2 in Figure l;

Figure 3 is a rear elevation of the typewriter but showing the framework in section;

Figure d is a side elevation of the upper pore' tion of the typewriter looking at the right-hand portion of Figure 1;

Figure 5 is a sectional plan view taken along line 5 5 in Figure tl;

Figure 6 is a longitul view taken along line @-5 in Figure 3;

Figure 7 is an elevation of a portion o the left-hand side of Figure 1;

Figure 7A is an isometric view looking at the opposite side of the lower portion of Figure 7;

Figure 8 is a sectional view taken along line @-3 in Figure 1;

Figure 9 is a vertical sectional view taken along line 9 9 in Figure 1;

Figure 10 is a vertical sectional view taken along line lil-10 in Figure 1;

Figure 11 is a sectional detail view taken along line ll-il in Figure 3;

Figure 12 is a vertical sectional View taken along line i12-i2 in Figure 3;

Figure 13 is an isometric view of the printing end of the upper left code printing member 2g shown in Figures 1 and 8;

Figure 14 is an isometric viewr of the printing end of the left center code printing bar Ig shown in Figure 8;

Figure 15 is an isometric view of the printing end of the lower left code printing bar 6g shown in Figure d;

Figure 16 is a view of a control sheet produced by the herein disclosed code printing apparatus being on a very much enlarged scale;

Figure 17 is an enlarged isometric View of a control area on a control sheet used for contro1' ling a printer, type-setting machine and the like.

Referring more specilically to the drawings, the numeral i0 denotes all portions of the base member of a suitable typewriter frame which is shown more in detail in my co-opending patent application, Serial No. 712,065. This frame has posts i l, l2, i3 and i4 secured to the upper side thereof which, in turn, support a cap plate H5. Secured to the upper portion of cap plate l5 are rails or raceways i6 and il' between which ismounted a rectangular carriage i8. rirucks i3 are disposed between the carriage l0 and rails i6 and l1 for holding the rectangular carriage member i8 in its proper relation for movement with respect to the rails l5 and l1.

Suitable brackets 20 and 2l extend upwardly from carriage i8 and these members have mounted therebetween a platen 22 around which a. control sheet is placed while it is being prepared.

The typewriter is provided with a plurality of key levers 24 for operating the key bars. Each of the key levers which operates a type bar has a key button 25 on the forward upper end thereof and is pivotally mounted on rod 25 xed in a comb 21 which is secured to the sidewalls of the typewriter. The rear ends of -key levers 24 have a notch on their upper surface and a shoulder immediately in front of the notch which engages the rod 26. The key levers are held in position by means of each key lever having sel cured thereto a tension spring 28 whose upper end is secured .to an adjusting screw 25 mounted in a transverse U-shaped bar 30, disposed across the machine so that each key bar can be adjusted independently of the other key bar, as to tension.

It is evident that various key levers have different shapes to cause the key buttons 25 to be disposed at the proper place on the key board, but essentially, the structure of all is the same.

The front ends of key levers 24 are restrained from upward movement beyond a given point by a transversely disposed plate 3l, the springs 28 sewing to hold the key levers normally against the lower surface of this plate. A comb Sla separates the key levers. Each key lever which is designed for 'operating a drive bar has secured to the lower side thereof a tension spring 32, the other end of .said spring being secured to a trip lug 33 pivoted at its upper end on key lever 24.

Each key lever moves a drive bar for engagement by a striking bail, which, in turn, actuates a type bar to print a character.

Also, for the key levers controlling the carriage shift and back spacer mechanism, there are drive bars 35, which are all shaped in a similar manner. These drive bars 35 are supported for sliding movemen on a transversely disposed rod 36 penetrati g a slot 31 in the drive bars, which bars are mounted in combs 38 and 33 to space them properly apart from each other. Secured to each drive bar 35 is one end of a tension spring 40 which has its other end connected to a transversely disposed shaft 4|.

It is seen that spring 40 normally pushes the drive bar 35 towards the front of the machine and causes the left-hand portion thereof to be pulled downwardly. Secured to the side of each drive bar 35 is a pin 42 which is adapted to rest against the lower end of a. lever 43, said lever 43 being pivoted as at 44 in a comb 45.

- Plvotally secured to the upper end of lever 43 is a link 46 which has its other end pivotally connected as at 41 to a type bar 48. This type bar airaaec is pivotally connected as at 49 to basket 50 of the typewriter.

By referring to Figure 6, it is seen that type bar 48 has a type face 5l thereon which has surfaces 5ta and 5H) for printing shift and unshift legible characters. This type face 5l has notches 52 and 53 therein into which the ends of the separate code printing bars are adapted to t while the legible characters and code characters are being simultaneously printed. In all of said co-pending patent applications, except Serial No. 24,064, the legible characters have been disposed upon the faces 5ta and 5Ib and the code characters have been disposed at the same level at a point where cutaway portions 52 and 53 occur, thereby causing the code and legible characters to be printed by the same type bar. Since the code characters are printed by separate and independent means in this apparatus, it is neces- I sary to cut away the portions 52 and 53 in order to allow the surfaces 5ta and 5lb to properly engage the control sheet when the type bars are actuated.

When a key bar 24 is depressed, a suitable striking bail 54 moves to the left in Figure 6 thereby engaging the hooked portion 35a' on the lower side of the drive bar and causing pin 42 to rotate the lever 43 in a clockwise manner in Figure 6 about pivot 44. It is evident that this will cause link 46 to move to the right and to rotate the type bar 4Bina counter-clockwise manner about pivot point 43 to print a legible character on the control sheet.

The selecting mechanism on the rear of th typewriter is similar to that shown in my copending patent application, Serial No. 712,065. This comprises a plurality of rst selector bars 56 which have on the upper edge thereofl a notch which is engaged by the rear reversely bent end of drive bar 35. When the front end of a drive bar is depressed by a key lev'er, the iirst selector bar 56, which is associated with the key bar depressed, is raised.

Before the striking bail 54 moves a drive bar 35 towards the rear of the machine and out of the notch in the upper end of its rst selector bar, certain of the second selector bars are allowed to move under their spring tension to engage certain projections on the raised rst selector bar. When the Yrear end of the push bar 35 raises one of the first' selector bars Slicertain of the second selector bars 51 are allowed to move to the left in Figure 3 under the tension of their respective springs 58, which will cause the measurement of the particular character to be taken in the typewriter, to operate anl indicator as shown in patent application Serial No. 712,065.

The first and second selector bars are mounted in a framework comprised of two portions. The rear portion comprises the upper and lower transverse bars 59 and 60, which have integral therewith combs 60a. and 60h. This' portionnof the framework is secured to the rearwall of thetypewriter base l0. The front portion of the frame is similar to the rear portion and comprises upper. and lower'transversely disposed bars 63 and 64 joined togetherY by combs 65. Between the members 59 and 60, 63 and 64, ls slidably mounted a magazine 61 which contains rst selector bars 56. v

Each of the push bars 35 has resting on the upper side thereof one of vertically disposed bars 10, 10a or 16h, which has notches in the rear face thereof for engaging the notches in trans- '(5 verseiy disposed sliding bars l to inclusive. Bars lt, ida and 10b are slidably mounted in combs 1i and 12 and are conned in these combs by longitudinal bars 13 and 1d. Each bar 10 is normally pulled downwardly by an individual spring Mid.

The combs 1I and 13 normally rest on top oi base member I3 and-are held at their ends in spaced relation to each other by means of vertically disposed posts 15 'and 16, said post 15 also acting as a comb for guiding certain levers which will be later described, (see Fig. 5)

. Posts 11 and 18 also rise from base member i@ and are secured to the outer edge of longitudinally disposed bar 13 by any suitable means such as screws 19 and 19a. The screws 19 penetrate the members 11, 13, 15 and 1I on the letthand lside of Figure 3, and the screw a penetrates members 18, 13, 16 and 11 on the righthand side of Figure 3 to form a rigid framework for the longitudinally disposed bars I to-8 inclusive, which cooperate with the bars l'Ni in the selection of a code character. Screw II penetrates the upper end of members 11, 14, and 12 on the left-hand side of Figure 3, to hold the upper ends of these members together, whereas, bolt 8Ia penetrates the upper end of'members 18, 14, 16 and 12 to hold these members in a like manner. l

The members 11 and 18 have notches cut there.- in forming a comb-like member for the reception of the bars I, 2, 3, l, i and I and to allow f slidingx'novement of these bars. The longitudinal permutation bars which slide in comb-like members 11 and 18 each have a sprlng'lZ secured l,

thereto, (Fig. 3), the other end of said spring being secured to spring perch 03 which, in turn, is fastened to bar 84 secured to the side of transverse bars 13 and 14. These springs l2 normally pull these -bars I to 6 inclusive to the left in Figure 3. The movement to the left of bars I to 6 inclusive is limited by means of an angleshaped member 80 which is secured to sliding bar 81, said sliding bar being slidably mounted in in contact-with the outstanding leg of anglemember 80 at all times by means of springs 82.

The bar 81 has a pin 90 projecting from the rear side thereof which is adapted to t in a slot in the upper end of lever 9i, said lever El being. pivoted as at 92 to bracket 93 which bracket is secured on the side of longitudinallyr disposed bar 13. 'I'he lower end of lever Sl is forked and is adapted to iit over a pin 9d in the upper end of a lever 95, said lever 95 being pivoted as at 9S to frame portion 5d. The lower end of lever 95 is also forked andts over a pin Sl in a bar 98 which is slidably mounted in post 60a and is xedly secured in return bracket 99 for returning thesecond selector bars El to normal position. I'he method of operating this return vbracket has been previously described in my co-pending application Serial No. 712,065, and repetition of the description is not deemed'necessary at this time; however, it will be noted that when return bracket 99 returns the permutation or selector bars 51 to normal position, the bars l to 6 inclusive, will be simultaneously returned to their normal position; Y

As the bar 98 moves to the right 'in Figure 3, the lever 31 will be caused to rotate in a counter- -of push bare d5.

When a key bar 28 is depressed thereby causing the rear end of push bar 35 to raise the bar 10 upwardly certain of the bars i to o inclusive, will be allowed to move to the left in Figure 3, and the other will be blocked. These bars control the code printing means for printing the cell control areas I to 6' respectively, as shown in Figure 13, and it will be seen in the following description how the bars which are allowed to moveto the lett will block the corresponding code printing bar from printing in their areas and also how the ones which are prevented from moving to the lett will allow the corresponding cell controls to be printed.

The permutation -bars I to 8 inclusive, each have a notch IOI therein into which are adapted to t levers Ia to 8a respectively, (Fig. 5). said levers being pivoted as at |02 in comb |03. The front ends of bars la to 6a inclusive are adapted to slide in, 'a comb 'IM which is secured to post II oi' the typewriter frame. these bars also normally contact links Ib to 0b inclusive which have their ends slidably mounted in a bracket |05 which ls secured to the cap plate I5 of the typewriter frame. 'I'he left-hand end (Figure f2) .of these links are pivotally connected to the lower end 0I levers Id to 6d respectively, the levers Id, '2d andd being pivoted as at |00 and the levers 3d. ld and 5d being pivoted as at I 01 in bracket |08, said bracket |08 being secured to the lower side of cap plate I5.

Pivotally secured to the upper end or levers Id to A6d inclusive, are links Ie to Se respectively. which haue their other ends pivotally secured to blocking bars If to 6i. The ends of each ci these blocking bars are adapted to block, at times,

'the inward movement of the code printing bars Ig to 6g respectively, said bars Ig to 6g having a pointed end I`I0 on the end nearest the platen 22 for printing a code character on the control sheet directly belowthe legible character which is printed by type bars d8.

Figures 13, 14 and 15 show the printing ends of bars 2o, Ig and 6g, which are opposite hand to bars 3g, 4g and 5g, shown' in Figure 6. The construction of all of the bars is similar but the ends are bent so as to properly position the pointed end iid.

Each of the blocking bars Il to Bf inclusive are held normally out of the path of the code printing bars Ia to 8g' inclusive; by means of tension springs |09 which have one end thereof connected to the lower ends of levers Id to 6d inclusive and the -other end secured to bracket 905. These code printing bars each have a notch Ill cut in the side thereof. at different locations into which the respective blocking bars If to @if are adapted to enter and'prevent the code printing bars Ig to 6g inclusive from moving towards the platen 22, (Figs. l, 9 and 10). Each of the code printing bars has one end of a tension spring I I2 secured thereto, the other end of said tension spring being connected to an angle bracket l lil which is secured to a pin lill, said pin HB being The front ends ofv lli loosely mounted in L-shaped member M5 and having a wing nut i it thereon for regulating the tension of the spring |62 thereby providing means for varying the intensity of the stroke that the code printing bars will strike the control sheet. The bracket M3 slidably engages portion i|5a of .le-shaped member M5, said portion lltlafacting es a guide for the bracket. The ends of the code printing bars lg, 2g and 6g nearest the platen are slidably mounted in a comb iltsaid comb having a rib il@ therein which is adapted to iit into slots l2@ in the ends of the code printing bars to hold the bar in a iiXed position in the comb. The front ends of these bars are slidably mounted in a `comb l2| which is secured to the top plate i5. in a like manner the code printing bars 3g, Hg and 5g have their ends, which are nearest the platen 22, mounted in a comb |25 having a vertically disposed rib |26 therein which is adapted to t into the slot 21 in the end of the code printing bar. Comb |25 is similar in all respects to comb HB and both of said combs are secured to cap plate |5 as at |28 (Fig. 6). The front ends of bars 3g, 4g and 5g are slidably mounted in comb |24 which is secured to top plate l5.

Let us assume that a key har 24 has been depresed for the selection of a character and one of the bars 10 is pushed upwardly which will allow the permutation bar 2 to move to the left in Figure 3. When this is done, the lever 2a in Figure 5, will be caused to rotate a slight amount in a clockwise direction about pivot point |02 which, in turn, will push the link 2b away from the observer in Figure 5, or to the left in Figure 2. Upon movement to the left of link 2b in Figure 2, clockwise rotation will be imparted to the lever 2d causing this lever to rotate in a clockwise manner about pivot point |06, thus causing the upper end of lever 2d to moveto the right to` carry the locking bar v2f to the right and into the notch lll inrthe code printing bar 2g. When the end of blocking bar 2f has moved intothis notch, the bar 2f cannot move in towards the platen to print a code character. If, in the present iiistance, the bar 2, in Figure 3 were not allowed to move the code printing bar 2g would have been allowed to move inwardly and print a character. It is, therefore, seen that when it is desired that any selected number of the bars ig, to 6g inclusive, print a character then the corresponding bars l to 5 are not allowed to move to the left in Figure 3 but are blocked by suitable notches in one of the vertically disposed permutation bars lil.

The code printing bars 3g, fig and 5g have a notch cut in the side thereof into which the upper end oi lever |30 is adapted to iit, (Figs. i, 2, 9 and l0) Likewise, the code printing bars lg, 2g and iig have similar notches cut in the side thereof into which another lever l3| is adapted to tit. Both of the bars l30 and |3| are xedly secured to a shaft H32, said shaft having one end thereof mounted for oscillation in bearing |33 which is secured to the lower side oi cap plate i5 and th other end of shaft |32 is mounted in end post l2. The end of shaft |33 projects out beyond the post i2 and has a lever i3d xedly secured on the end thereof (Figs. l, 2 and '1). Fivotally se-V cured to the free end of lever i134 is a downwardly extending link |35 which has plvotally secured at its lower end one end of a bell crank lever 36. This bell crank is pivotally mounted as at i3?! to the base irame l0 and the horizontal leg thereof has projecting therefrom a projection l39 (Figs. 2 and 7A) which is normally engaged by a hook aimee@ lima on member ifi, said member being pivoted as at ist to base member i0. The upper end of lever ifi@ has a roller |42 thereon which normally contacts a cam M3 which is iixedly mounted on main drive shaft |44 of the typewriter.

This drive shaft of the typewriter is indicated by reference character 51 in my co-pending application Serial No'. 712,065.

A spring H5 normally holds the hook |1151: in latched position as shown in Figures 2 and 7, but it is evident that when the high side of cam M3 rotates in a clockwise manner from the position shown in Figure 7, that the member |40 will be caused to rotate in a clockwise manner about pivot point it thereby causing the hook portion of lima to be disengaged from the projection 539 on bell crank i136. When this is done bell crank E36 will be allowed to move downwardly under the tension of spring |48 which spring has one end secured to the bell crank and its other end secured to the base member I0. 'I'he vertically disposed leg of bell crank |36 has a roller |49 thereon which is adapted to contact a cam |50, xedly mounted on main drive shaft IM. It is seen that while the roller |39 is resting upon the high side of cam that the link |35 will be raised in its highest position thereby causing the shaft |32 and its associated levers |3| and |30 to be also held in their farthest position toward the front of the machine. In this position the levers |30 and 53| will hold the code printing bars lg to 6g inclusive, away from a printing operation as long as the roller |49 rests upon the high side of cam |50. Y

Immediately after the shaft |44 rotates a suiflcient amount to allow the roller |69 to moveto the lower side oi cam |50 the high side of cam M3U. of cam |43 will contact the roller |42 in the upper side of member or lever |40 to cause the hook portion |40a to become disengaged from the projection |39 on bell crank |36. When this is done the'lever |36 will be allowed to snap downwardly under the tension of spring |68 and also understhe tension exerted by the six individual springs ||2 which are connected to the code printing'bars Ig to 6g. By providing an varrangement of this type, itis possible to ob tain snap action of the code printing bars which is very essential in the printing of a codecharacter. i

The basket and ribbon feed arrangement of this typewriter are of a conventional make, however, it might be stated that it is equipped with a ribbon |52 which is held in its proper position by ribbon guides |53 and |56, said ribbon guides 55 projecting up from a forked member |55 which is mounted behind the .type guide |56, (see Fig.

"8)." The basket 50 is connected to suitable guides 63 disposed on each side of the basket, (Figs. 4 and 5), said guides having a groove therein which is adapted to cooperate with a similar groove in opstanding portion of bracket 52. Suitable trucks |63 are disposed between members i6il and |62 for guiding the basket as/ l it is shifted from one position to another. Piv7/ r otally secured to member as at |65 is downwai-diy extending link |66 which, in turn., is pivotaliy secured as at |61 to horizontally `/Iilisposed lever 68. The lever |68` is pivoted/intermediate its ends as at |69 to bracket |10 and the 7@ other end of said'ievcr |68 normally rests r"on `top of a lever iti which is xedly secured on shaft H2. The shaft il! is mounted fer oscillation in suitable beangs M3 secured to the side of posts i5 and t6.

` arranca As the code on the shift side is the same as it is on the unshift side with the exception that the number codecharacter is added on the shirt side, some means must be devised to release the number t code character and allow it to print when the basket is shifted. As there are some characters, such as the period and comma which have number t code character on both sides,.the U-bar |15 must be extended all the Way across the typewriter so that when one of the particular key bars for the period or comma is raised, the U-bar |15 and also bar 10b will be raised to allow the code printing bar 6g to print.

By refening to Figures 5, 6 and 12, it is seen that shaft |12 has secured thereto a U-shaped bar |15 which normally rests in notches cut in the side of bars 1li, 10a and 10b. U-bar |15 normally has a clearance on both sides in notch E11 of bars 10 and is not affected by the shifting of the basket of the typewriter, .(Flg. 6). When a character appears on both the shift and unshlft sections of the key button, .such as a period or comma, a bar 10a is provided which is identical in all respects to bar 10 except this bar has a narrow notch I11a with the U-bar |15 resting on the lower side thereof so that the U-bar will be dragged upwardly when this particular key lever is depressed.

When the typewriter basket 50 is shifted-upwardly (Fig. 4), so as to print characters on the shift side of the type pallet, lever |68 isoscillated in a clockwise manner, thereby lowering lever |1| and raising U-shaped bar |15 which, in turn, will raise vbar 10b, (Fig. 12).v Bar 10b controls permutation-bar 6 in the selector. Normally, bar 6 moves to the left in Figure 3 and the code printing bar 6g will be locked against printing, but when the basket is shifted it raises bar 10b and blocks permutation bar 6 and allows code printing bar 8g to print. The ,U-bar |15 can only raise bar 10b, but since the U-bar also rests on the top of notch |11a in bar 10a, it is seen that when a key bar for a period or comma is depressed, the bar 10a moves upwardly, which, in turn, drags U-bar |15 and bar 10b upwardly. This upward movement will block permutation bar 6 and allow code printing bar 6g to print.

This typewriter is also equipped with an indicating mechanism 13 which has already been described in one of my copending patent applications. It is, therefore, seen that I have provided means whereby code characters may be printed by means independent of the type bars in a manually operated typewriter, thereby making it possible to obtain an exact alinement V of the code characters which are to be scanned in subsequent operations.

In the drawings and specification there has been set forth a preferred embodiment of the invention, and although specic terms are employed, they are used in a generic and descriptive sense only, and not for purposes of limitation, the scope of the invention being set forth in the appended claims.

I claim: f i

l. A typewriter having type bars and means for holding a sheet for a writing operation, means for actuating said type bars one at a time, separate code printing means for printing a plurality of dots at the same time the type bar is actuated, a common ribbon adapted'to be struck by the actuated type bars, and code printing means, means for eiecting a shift operation, and

lmeans automatically operable upon eiecting of the shift operation not only for printing said plurality of dots, but for also simultaneously printing a dot with one of the code printing bars for the shift operation.

2. A typewriter having a plurality of type bars and means for operating said type bars for a Writing operation, means for measuring the space a character on an actuated type bar will occupy in regular line printing, a plurality of other bars for printing dots at the same time a type bar is actuated and in close proximity to the character written by the type bar, means controlled by the means for operating a type bar y `for selecting certain of the other bars for operation and means controlled by the measuring means for returning the selecting means for the .other bars toV normal position.

means for printing d ots, means for shifting the Y i mechanism of the typewriter for the writing of highv case characters and means operable while the shift is in operation for not only printing the `dots associated with the actuated character but also printing a dot representing the shift operation.

4. A manually'operated-typewriter having a plurality of type bars, means for actuating the type bars, a platen for. holding a sheet to receive writing impressions from the type bars, a plurality of printing bars for printing dots on the sheet adjacent the character written by the type bar, means controlled by the means for actuating a type bar for selecting one or more of the printing bars for operation, means for measuring the space a written character will occupy in regular line printing, and means controlled by the measuring means for returning the selecting meansv to normal position after the writing or a character and the dots associated therewith.

5. A typewriter having a plurality of type bars, means for actuating the type bars, a platen for holding a sheet to receive writing from the type bars, a mechanism controlled by an actuated type bar for measuring the space a character written by an actuated type bar will occupy in regular line printing, a plurality of printing bars slidably disposed in front oi' the platen for printing dots on the sheet adjacent the character printed by a type bar, a second mechanism controlled by the rst mechanism for selecting one or more o the printing bars for operation at the same time the type bar is operated so that dots will be printed on the sheet adjacent the legible characters and whereby mis-alinement of the type bars will not adect the position of the dots printed by the selected printing bars. v

6. A manually operated typewriter having a platen for holding a sheet and having type bars and a plurality of other printing bars slidably mounted immediately Vin frontgoi` the platen, means for actuating the type bars, each of the other printing bars having a projection for printing a dot on the sheet adjacent the character written by a type bar,l means normally urging the printing bars to printing position, means for normally locking said printing bars against moveacter written by a type bar, means normally urging the printing bars to printing position, means for normally locking said printing bars against movement, means for actuating the type bars, means controlled by the means tor actuating a type bar for releasing certain ofthe printing bars for a printing operation simultaneously with the writing of the legible character by the actuated type bar, and means for returning the releasing means to normal position immediately after a printing operation.

8. A manually operated typewriter having a platen for holding a sheet and having a plurality of printing bars for printing dots on the sheet, said printing bars being disposed for sliding movement immediately in iront of the platen and projecting laterally thereof, a plurality of type bars and means for actuating said type bars .one at a time, each of thetype bars having portions of its face cut away to prevent engagement with the printing bars, means controlled by the means' for actuating a selected type bar for eiecting a printing operation with some of the printing bars atthe same time the actuated type bar writes its character on the sheet.

9. In a typewriter having a platen for holding a sheet and having a plurality of type bars, each of /said type bars having a pair of projections thereon bearing raised portions for printing a legible character, a drive bar for actuating each type bar, akey bar for moving each drive bar for actuation, a measuring device controlled by the' drive bars, a plurality of other printing bars,Y a selector for selecting ythe printing bars for actuationnmeans for moving the selected printing bars simultaneously with movement of an actuated type bar to print dots on the control sheet immediately yadjacent the characters written by the projections on the type bars, and means conananas and a platen for holding a sheet for receiving writing done by the type bars, a plurality of slidable printing bars disposed in front of the platen, l

tension means normally urging the printing bars towards said platen,l means normally locking the printing bars against movement, and means controlled by an actuated type bar for unlocking one or more of the printing bars for printing dots on the sheet in close proximity to the character written by the type bar.

11. A typewriter having type bars', a platen for holding a sheet for receiving writing from the type bars, means for actuating said type bars, means operable by an actuated type bar for measuring the space occupied by the character on an actuated type bar in regular line printing,\a plurality of printing bars slidably disposed in front of said platen and normally heldY out of engagement with the sheet, and means controlled by the means for actuating the type bars for selecting some of the printing bars for operation to print a group of dots on the sheet at the same time a character is written by a type bar.

12. A typewriter having type bars, a platen i'or holding a sheet for receiving writing from the type bars, means for actuating said type bars, means for measuring the spacev occupied by the actuated characters in regular line printing.I a plurality voi? printing bars slidably disposed in front of said platen and normally held out of engagement with the sheet. means controlled by the means for actuating the type bars for selecting some of the printing bars for operation to print a group of dots on the sheet at the same time a character is written by a type bar, and means controlled by the measuring means i'or returning the means for selecting the printing bars to normal position.

13. In a typewriter having type bars and a plurality of printing bars, drive bars for operating the type bars, other drive bars for performing functional oprations in the typewriter, and means controlled by the actuation of a. functional drive bar for selecting one or more of the printing liars for a printing operation.

BUFORD L. GREEN.

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