US1101588A - Type-writer. - Google Patents

Description

M. N. TRONE.

TYPE WRITER. APPLICATION FILED JUNE 28, 1913.

Patented June 3Q, 1914,

mmysss 6 SHEETS.BHEET L ll lil Ill ||l| M. N. 'TRONE.

TYPE WRITER.

APPLICATION FILED JUNE 28, 1913.

Patented June 30, 1914.

0 BHEETSSHBET 2.

\ Mu 6 a ATTORNEYS M, N. TRONE.

TYPE WRITER.

APPLICATION FILED JUNE 28, 1913. Ljlm gg Patented June 30,1914. e SHEETSSHEET s.

I O 0 BMW M. N. TRONE.

TYPE WRITER.

APPLICATION FILED JUNE 28, 1913.

Patented June 30, 191% 6 SHEETS-SHEET 4.

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M. N. TRONE.

TYPE WRITER. APPLIOATION FILED JUNE 29, 1913.

P nama June 30, 19m

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TYPE-WRITER.

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To all. whom it may concern.

Be it known thatI, -MAURIGE N. Tnoivn, a citizen of the United States, and a resident of Hanoven, in the county. of York and, Stat of Pennsylvania, have made certain new. and useful Improvements in Type-Writers, of which the following is a specification.

My invention relates to improvements in typewriting machines, and it consists in the combinations, constructions, and arrangements herein described and claimed.

An object of my invention is to provide a device of the character described in which the typebars are carried on a segment which may be shifted vertically for writing capitals' or upper case letters, and in which means is provided for dispensing with certain operations which are necessary in the ordinary machine, thus rendering the device capable of greater s eed.

A further object o -my invention is to provide a typewriter: in which the weight of the parts which are moved in the shifting operation is substantially half that in the ordinary typewriter of this character, thereby rendring the use of the typewriter less fatiguing.

A further object of my invention is to provide a device having means for preventing the writing of upper case or capital letter-s below the line and of decreasing the liability of the small or lower case letters being written above the line.

A furtherobject of my invention is to provide a key-board in which the right hand half of the keys are separated from the left hand half, thus preventing interference of the index fingers of the two handswhile operating.

Other objects and advantages will appear in the followingspecification and the novel features of the device will be particularly pointed out in the appended claims.

My invention is illustrated in the accompanying drawings forming part of this application in which similar reference characters indicate like parts in the several views and in which Figure 1. is a plan view of a typewriter constructed according to my invention, many of the parts which do not form the subject of invention being removed for the sake of clearncss, Fig. 1 is a detail of certain working parts, Fig. 2 is a section along the line 2-2 of Fig. 1, lookingin the direc tion of the arrow, Fig. 3 is a view similar to Specification of Letteralatent. PERM Application filedJuneZS, 1313. Serial N10,776,351.

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Fig.2 showing the-apparatus in another po- SitiQP. Hi. 4 is a. I an,viewof:the bottom port on o one of t eauxiliary space bars, Fig. 51s asection along the-1ine5.5.of Fig. 2 looking in the diDGOtlOii-flf the-arrow, Fig.

'6 is a perspective view-in detail of a, portion of the operating mechanism, Fig. 7 is a sec- 'tionalong the hne'Z-J. of Fig. 1,,looking in the direction of the arrow, Fig. 8.is.a. detail view, of theshift lock, Fig. 9 is a perspective view of the release key, Fig. 10 is. a detail viewof one of theleverarms,Fig. 11 is a front view of one-of. thetype-banquadrants, Fig. 12 is a perspectiveview of the universal quadrant releasebar, and. Fig. 13 is a perspectiveview of; the main spacing bar.

In carrying." out my invention I make use of a, frame I mounted on. legs or upri hts 2. Carried by the frame is. a cross mem er 1 (see Fig.1) which is provided with a forwardly extending central lug 4 with hugs 5 and; 6.each side of the central lug 4. The central. lilgbears a central guide post 7. This formsan intermediate member between two vertically slidable quadrants 8 and 9 respectively, which are designed to bear the type bars,.and which together take the place of the semicircular segment in the ordinary machine-of this character. These quadrants are each provided with a downwardly extending stop bar such as that shown at 8 in Fig. 1 1 This bar is provided with a stop member such as the nut 8 to limit the downward movement of the quadrant and is provided with. nuts 8 to limit the upward movement of the quadrant. The rod 8 passes through. an opening in the lug 5 which is'of sufiicient size to permit the free passage of the bar. The quadrant 9 is provided with a similar stop bar 9 having stop members similar to the stop member 8 and 8 The quadrant 8, as will be seen from Fig. 11, is provided with a pair ofdownwardly extending arms 8 and 8, while the quadrant 9,: is provided with similar arms 9 and 90". The ends of these arms 8 and 8 (see Fig. 1) are secured to arms 10 and provided with pins 10 and 11 respectively arranged to enter the forked ends of rods such as those shown at 12' and 12 respectively.

Secured to the bottom of the frame and extending transversely thereof is a plate 13 which is provided with openings 14 and 14 through which the links 15 and 15 are arranged to extend. The lower ends of these links are slotted as shown in Fig. 6 to engage pins 16 and 16 carried by rock arms 17 and 17 respectively. The rock arm 17 is, secured to a rock shaft 18 which extends through a-sleeve 19. The arm 17 (see Fig. 6) is secured to the sleeve 19.

Referring now to Figs. 1 to 8 inclusive it will be seen that I have provided, outside of the frame 1 of the typewriter, two auxiliary bars 20 and 21.- These bars are disposed parallel with the main space bar 22, which is just inside of the front portion of the frame 1. Each of these bars is supported by a pair of parallel rods such as those shown at 20 and 20" in Fig. 4, these rods being suitably braced by means of brace members 20 and 20. The rods are pivotally mounted at their rear ends on a shaft 23 suspended by means of brackets 24 from the frame 1. Spacing sleeves 25 are provided for preventing a lateral shiftin of the bars 20 and 20". As will be seen from Fig. 1 the auxiliary bars 20 and 21 are both provided with rearwardly extending rods 20 and 20 rod 23 as described. The forked link 15' is pivotally connected with the rearwardly extending bar 20 of the auxiliary space bar 20, while the link 15 is connected with the bar 20 of the auxiliary bar 21. It will therefore be apparent that when the auxiliary arm 20 ismoved downwardly it will cause the rotation of the rod 18, if the arm 17 is in the position shownin Fig. 6, while if the auxiliary bar 21 isdepressed it will cause the rotation of the sleeve 19. Consider now the action when the rod 18 is rotated by the depression of the bar 20. As will be seen from Figs. 2, 3 and 6, the rod 18 has rigidly secured to it an arm 26 whose rear end is pivotally connected with the rod 12. The front end of the rod 26 is adjustably secured by means of a screw 27 to a locking member 28 which is loosely mounted on the rod 18, but which may be adjusted rotatably with respect thereto and secured in its adjusted position by means of the screw 27. Pivotally secured at 29 upon a bracket 30 carried by the cross member 13 of the frame is a spring-pressed arm 31 having a stop member 32 arranged to be engaged by the curved surface of the locking member 28 to lift the arm 31 against the tension of the spring so as to permit the locking member to pass the stop 32 whereu on the latter will drop in front of the lodk which are connected with the ing member 28,

thereby locking the rod 18 in its shifted po sition.

As will be seen from Fig. 5 the sleeve 19 is provided with locking mechanism comprising the members 26, 27, 29, 30, and 31, which are similar in all respects to their corresponding parts just described, which will lock the sleeve in its rotated position Whenever the auxiliary bar 21 is depressed. Thus it will be seen that whenever the left hand auxiliary bar 20 is depressed the right hand quadrant9 will be shifted vertically, and will be locked in' its shifted position, while when the right hand auxiliary bar 21 is depressed the left hand quadrant 8 will be shifted vertically and locked in its shifted position. On the front part of the frame 1 (see Figs. 2 and 3) I secure downwardly extending L-shaped brackets like those shown at 33 having an opening for permitting the passage of a stop rod 34 which is provided with an adjustable nut 35. A spring 36 bears at one end on the bracket '33 and at the other end'on the crossmember such as 20 (see Fig. 4) to which the rod 34' is rigidly connected. The spring effects the return of the auxiliary bars to their normal position. The main space bar is shown in Fig. 13. It consists of the usual bar such as that shown at22, which is carried by rearwardly extending arms 22 and 22*, these arms being pivotally mounted on the rod 37 at the rear of the machine (see Fig. 1). Slotted links 38 and 39 are pivotally connected to the arms 22 and 22 respectively. The link 38 is connected with a rock arm 40 carried by a rock shaft 41 which is rotatably mounted in brackets 42 and 43 carried by the main frame. The link 39 is similarly connected with the rock arm 44 upon the same rock shaft. A depression of thespace bar 22 will therefore cause the-rocking of the shaft 41' which will actuate the escapement mecha- 'nism. This is an ordinary 'construction'and for the purpose of'this invention it will be sufiicient to show how the bar-'41 is rocked wheneither of the auxiliary bars 20 or 21 are depressed, thereby operating the escapement.

Referring to Figs. 2 and 3 it will be seen that one of the rearwardly extending rods or bars which is connected with the auxiliary space bar 21 is connected by means of a slotted link 45 with an arm 46 which is attachedto the rock shaft 41. An arm 46 (see Fig. 1) on the rod 41 has a similar link 45 attached to the bar 20 which forms part of the supporting means for the auxiliary bar 20. It will be seen that when either of the auxiliary bars 20 or 21 is depressed two actions take place, to wit; the spacing mechanism is operated through the rotation of the rock shaft 41 (the spacing mechanism controlled thereby being omitted for the sake of clearness) and the quadrant mousse on the opposite side of 'the center 'of the machine from the bar which is depressed "will be raised and locked in iits raised position.

lhwmeans by which the raised or shifted quadrant may be released sons to return to its normal position consists of the follow ing mechanism. Aswill bs-seen in 12, a shaft 47 is pivotally suspended to the under part'of the frame 1 by means of ad justablebearing screws 48. To this shaft is securediu plate or bar 49 .(see lEig. (l2) -'having:aseriesofslots 50 for admittingtherods 29 :and 29' which support the auxiliary space andshi'ft bars 20.and'2l,.and end slots 51 for admitting the bars 22 and .22 of "the main space bar '22. The plate 49 has Jl 'shaped projections-52 and 53, the former being arranged =to be engaged :by the rod flfl of the auxiliany space and shift bar 20, and the latterbythe-bar 20 of the auxiliary space and shift bar 21, so as 'to cause the rotation of the shaft -47 and the slighteleration of the outer edge of the universal bar 49 in a position 'to be engaged by the initial downward movement of any of the bars which support the keys.

.Fig. 2 -s'hows lthe normal position of the 'upperedgeof'the universal bar 49 and Fig.

3 shows the position of =thisbar when one of the auxiliary-space-and shift bars 21 has been depressed. It will :be noted that the depression of anvof the keys such as the key 5 1- in Fig. 3 will cause "the rotation of the bar49 on the shaft 47. The bar 49 extends transversely underneath of the keys, and consequently the depression of any .key on the board will have :the same effect. Referring again to Fig. '12 it will be seen that the bar 49 is provided with a pair of slotted brackets 55 and 56. To the latter is adjustably attached an arm 57 (see Fig. 3) connecting with a link -58 which is in turn connected with the end of'the 'arm 31. This will cause t'he raising of the arm 31and'the consequent shifting of the stop member 32 above the locking member 28. The quadrant which is held up by the locking memher will therefore have nothing to support it, and will dro downwardly into its normal position. As will be seen from Fig. 5, an arm 57 connects with the link58 which is in turn connected with the swinging arm 31 similar to the arm 31 shown in Figs. 2 and The operation of this mechanism permits the release of ithe-quadrant 8. The operation of any key on the key-board after either one of the quadrants is shifted and locked will cause the releasing of such quadrantand its return'to normal position. It is sometimes desirable to shift both quadrants simultaneously and to retain them in their shilited positions as when writing all ca itals. =I'therefore provide a key 59 (see in.

1') which is designated shift look. This key is shown in detail in Fig. 8. The bar 60 upon which it is mounted is provided with an opening tl-arrranged toreceivethe loosely extending end '62 of the lever 68,wl1ich is mounted on a stub shaft 64. The lever is provided with an adjustable locking member like the members 28 and 28 already described.

A linkfifi is pivotally conneclted at-G? with a arm (58 loosely mounted-on a rock shaft (59 which extends firom one side of the machine to the other. The latter bears a rear- \\*'ardly extending arm (see Figs. 1 and 7) which engages underneath the pin 71 attaohedtto anarm 72 rigidly secured to the rock shaft 10. An arm 74. (see Fig. 1) is adjustably secured -'to a sleeve 69 which surroundsithe shaft 69. The arm -7 l cxtends underneath'the arm 9 'ofit'he quadrant 9.

The sleeve (i9 bears an arm 69 at :one end. The arm 68, as will be seen from Figs. :land 110, bears a cross piIi'GS which extends underneath both of the arms 70 and '69 The sshi fting of the :arm '68 will cause the simultaneous movement-of the arms 69 and 70, thus rotating both the rock shaft 69 "and thesleeve 69". It will therefore beseen that when the key 59 is depressed both'quadrants will be shifted simultaneously.

Referring now particularly to Fig. 9, it will be :notedtthat :I have :provided a pivoted key bar :75 having a stop member 7 6 which is arranged to engage and hold the locking member'65 preciselyias the locking member 28 is engaged by the locking member 32 so that when the key 59 is depressed both quadrants are not :only raised simultaneously, but they are locked in their raised position. In Fig. 9'1 have shown a release key 77 as carried by the key bar 75, so that when the key 77 is depressed the stop member 76 is :raised .to permit the release of 'the looking .member 65, and hence the downward movement of both quadrants simultaneously to their normal positions. Besides rthe quadrant shift lock, and the segment shift lock, described above, there are also other means provided for shifting either quadrant of the segment, or the two quadrants together simultaneously into position for writing capital letters or other upper ca-se characters, without thereby locking said quadrant or said segment, (WhiCl1- ever may loe'used) into place. To this end I provide the shift keys 78 and 79 in the positions customary for them on an ordinary typewriter. In Fig. 7 it will be seen that the key 78 has its key bar pivotally mounted at 80 and is rovided with an upwardly extending ifor ed link 81 which is connected with the pin 82carried by the arm 69 secured to the sleeve 69 (see Figs. 1, 5 and -7 On the opposite side of the machine the shift key 79 is pivotally mounted at 80 :and is pivotally secured to a 'link 83 (see Fig. 5) which is connected with an arm 84: secured to the shaft 69. Pressure therefore on the left hand shift key 78 will cause the rotation. of the sleeve 69 and the subsequent lifting of the right hand quadrant 2) by means of the arms 74 and 9 The release of this key will permit the quadrant to resume its normal. position, since in the shifting of the quadrant by means of the key 78, no locking mechanism is brought into play. Similarly the shifting of the key 79 will cause the turning of the rock shaft 69 and (through the medium of the arm 70, the pin 71, the arm 72, and the rock shaft 10) will raisethe left hand quadrant 8.

If .the operator desires to shift the whole segment as a unit by means of either of the keys 78 or 79, in which case the keys 78 and 7 9 would serve precisely the same purpose as they do on the ordinary typewriter, he may look the sleeve 69 to the rod 69 so that both will turn together. For this purpose I may provide on the sleeve 69 a collar having an arm 84* having a pin 8? arranged to enter an opening 8a of the arm 84. The collar may be adjustably secured to the sleeve 69 by means of a set screw 84?. lVhen the locking device is used the pressure of either shift key 78 or 79 will cause the simultaneous rotation of the rod 69 and the sleeve 69 thereby raising or shifting the segment as a whole*i=--The release of the key will permit the segment to assume its normal position. It will be understood that this locking device is only used occasionally and only then when one is using the typewriter who wishes to shift in the ordinary manner. The specific means for locking the rod to the sleeve might be replaced by any suitable means without departing from the spirit of the invention.

From the foregoing description of the various parts of the device the operation thereof may be readily understood.

Let us assume that the operator intends to write a single capital letter or other upper case character immediately preceded by a space. In the ordinary machine three distinct operations must be performed: first, depressing the space bar; second, depressing the shift key, and third, depressing the key for bringing the type bar into play. By the use of the present device only two operations are necessary. Take for instancethe---- letter \V. The auxiliary space and shift bar 21 is depressed by the right hand. This causes the spacing action as heretofore de scribed and shifts the left hand quadrant 8 into position for making the capital. It also locks it in this position. Now when the key \V is depressed the type bar will be brought against the platen while the quadrant is in its locked position. The printing of the letter upon the line will therefore be assured. In the ordinary typewriter a rapid operator may let go of the shift key before it is pressed into position so that the capital letter may be written below the line, but the locking of the quadrant in position in my device prevents this. Now when the key is depressed and the letter printed the quadrant is released and returned to its normal position.

Another feature to which I desire to call attention is the fact that this arrangement gives approximately fifty per cent. more accuracy in position to the small letter or character which follows such upper case letter or character. In the ordinary typewriter a small letter or lower case character is'very apt to be written above the line by a rapid operator, because of the fact, that after the capital letter has been written, the small letter follows before the segment can reach its normal position. But in this device one half of all the letters and char-' acters on the machine are at all times in their normal position of rest. If therefore a capital or other upper case character on the left hand side of the machine such as the capital \V? should be followed by a small letter such as the small k on the right hand, the sniall letter k must be written on the line and not above it, while if the entire segment were in motion the small letter k might be written above the line as in the ordinary typewriter.

Another feature of this device which renders it more eiiicient is that when the quadrants are shifted separately the operator has less weight to lift than he does when the whole segment with its type bars is lifted. Thus the device is far less fatiguing than the ordinary typewriter. Furthermore this lessened weight will assist the operator in printing the upper case characters on the line of writing instead of slightly below, as is so frequently the case with the ordinary typewriter when shifting the whole segment.

In case the operator desires to write all capitals he depresses the shift 150k whereby the quadrants will be shifted simultaneously and locked in their shifted position and will he released by the depression of the release key.

A special feature of this machine is the fact that it may be used precisely as the ordinary typewriter, that is, the shifting of thetype bars may be accomplished by means of right and left hand shlft keys so that one who is not accustomed to the new features which form the subject of the present invention may nevertheless use the typewriter in pic-cisely the same manner as an ordinary typewriter to which he may have been accustomed.

It will be noted that the key-board in this device is divided into two parts by a space which separates the keys designed to inc morass be @operated by, the left. hand from those whichare designed to heo erated by the right hand. Now .a touch? writer in all the standard systems uses but onehalf of the key-board for each hand. The division into two parts furnishes guidakeys for the index fingers of each hand which fare sufficiently separated to prevent interference of the index fingers of the twohands While operating. Furthermore the separation of the key-board and its two parts obviates .the necessity of bending the rearwardly extending key bars and permits these bars to BX- tend directly to the back part of the machine where they are pivoted. Thencentral guide post 7 is therefore not in the way of the key bars. Furthermore my invention provides an arrangement whereby each key can be located in its proper quadrant Without trouble when about to use the quadrant shift. This is accomplished by the division of the key-board in two parts, whose letters and characters are identical, respectively, with the letters and characters of the corresponding quadrants. This physical division of the .key-board-has an added advantage by furnishing guide keys for the index fingers of the hands; it also prevents interferenee of such fingers while writing; it also tends to prevent loss of position on the board when using the touch system of writing, for which" this machine is peculiarly adapted. lhis division of the keyboard will be of great assistance in memorizing the keys controlled by each hand in the touch system of writing.

A machine constructed as described above weighs but very little more than the ordinary machine of this type. Most of the .operating mechanism which permits of the novel functions of the device is carried by cross members on the .under part of the frame as explained, and therefore does not interfere with the operation of the key bars.

I claim: 1. In a typewriter, a frame, a type bar segment carried by said frame, said segment being divided into two parts, means for shifting either part at will, means for locking either of said parts in its shifted position, and means common to the two parts for releasing said shifted part thereby per- Initting its return to normal position.

2. In a typewriter. a frame, a type bar segment carried by said frame, said segment being divided into two parts, means for shifting either part at will, means for looking either of said parts in its shifted position. means common to the two parts for releasing said shifted part thereby permitting its return to normal position, and means for shifting both parts simultaneously.

3. In a typewriter, :a frame, a type bar segment carried by said frame, said segment being divided into two parts, means for Shifting .eitherpart at will, means for locking either of said parts in its shifted position, means common to the two parts for releasing said shifted part thereby permitting its return to normal position, means for shifting both parts simultaneously, and additional means for releasing said shifted parts simultaneously. 1

4. In a typewriter a frame, a guide member disposed centrally thereof, a type bar quadrant on each side of said guide meniber, means for shifting either of said quadrants independently of the other, and means for shifting said quadrants simultaneously.

5. In a typewriter, .a frame, a guide mem- 4 her disposed centrally thereof, a type bar quadrant on each side of said guide member, means for shifting either of said quad- "ran ts independently of the other, and means for shifting said quadrants simultaneously and for locking the quadrants in their shifted positions.

6. In a typewriter, a frame, a guide member disposed centrally thereof, a type bar quadrant on eachside of said guide member,

means for shifting either of said quadrants shiftable type bar quadrants carried by said frame, means for shifting each quadrant independently of the other, additional means for. shifting each quadrant independently of the other and for locking said shifted quadrant in its shifted position, and means for releasing the locked quadrant, thereby perits return to normal position.

9.. In a typewriter, a frame, .a pair of type har quadrants carried by said frame, means for shifting each quadrant independently of the other, additional means for shifting each quadrant independently of the other and for locking it in its vshifted position, and means cohperat'ing with the first named shifting means for shifting both quadrants simul-' taneously. v

10.. In .a typewriter, a frame, a pair of type bar quadrants carried by said frame, means for shifting each quadrant independently of the other, additional means for shifting each quadrant independently of the other and for looking it in its shifted position, and means cooperating with the first named shifting means for shifting both quadrants simultaneously and for locking them in their shifted positions.

11 In a typewriter, a frame, a pair of type bar quadrants carried by said frame,

means for shifting each quadrantv independently of the other, additional means for shifting each quadrant independently of the other and for looking it in its shifted position, means cooperating with the first named shifting means for shifting both quadrants simultaneously and for locking them in their shifted positions, and means for releasing both quadrants simultaneously, thereby per mitting their return to normal posit-ion.

12. In a typewriter, a frame, a pair of type bar quadrants carried by said frame, means for shiftin each of said quadrants independently of the other, a spacing mechanism actuating member, and means actuated by said quadrant shifting means for operating said spacing, mechanism actuating means.

13. In a typewriter, a frame, a pair of type bar quadrants carried by said frame, a quadrant shifting member or each quadrant, spacing mechanism operating means, and means connecting each of said quadrant shifting means with said spacing mechanism actuated means for operating the latter.

14. In a typewriter, a frame, a left hand and a ri ht hand type bar quadrant carried by said ame, means disposed on the right hand of the center line of the machine for shifting the left hand quadrant, and means disposed on the left hand line of the center line of the machine for shifting the right hand quadrant. i

15. In a ty ewriter, a frame, a left hand and a right hand type bar quadrant carried by said frame, means disposed on the right hand "of the center line of the machine for shifting the left hand quadrant,

means disposed on the left hand line of the center line of the machine for shifting the right hand quadrant, and means for locking either of said quadrants in their shifted sitions. 5', in i yllwli i, a m a left hand "and a ri ht hafiditypeb'ar quadrant carried by said v rame,i-"m'eans disposed on the right hand of the" center line of the machine for shifting the *l efthand quadrant, means disposed on'theleft hand km of the center line ofthe machin'evforf shifting the right hand quadrant, means forlocking either of said quadrants in their shifted ositions, a set of keys, andmeans operated y the depression of any'of said keys for releasing the locking mechanism of either of said quadrants,

thereby permitting its return to normal position.

17. In a typewrlter, a frame, a pair of quadrants carried by said frame, said quadrants being disposed on opposite sides of the center ne running through the device from front to rear, a shift bar carried by said frame on the left hand side of said center line for shifting the right hand quadrant, a shift bar on the right hand side of said center line for shifting the left hand quadrant, means for locking each of said quadrants in its shifted position, a spacing mechanism actuating means, and means connecting each of said quadrant shifting means with said spacing mechanism actuating means for operating the latter prior to the locking of the quadrant in its shifted posi-' tion.

18. In a typewriter, a frame, a pair of type bar quadrants, a spacing mechanism actuating means, 'a space bar for operating said means, a pair of auxiliary bars disposed outside of said frame, means connected with each bar for operating said spacing mechanism actuating means, and means individual to each bar for shifting and locking one ofsaid quadrants.

19. In atypewriter, a frame, a pair of type bar quadrants, a-spacing' mechanism actuating means, a space bar for operating said means, a pair of auxiliary bars disposed outside of said frame, means connected with each bar for operating said spacing mechanism actuating means, means individual to each bar for shifting and locking one of said quadrants, and additional meanscomprising a right hand and a left hand shift key for shifting either of said quadrants independently of the first named shifting means.

20. In a typewriter, a frame, a pair of shiftable type bar quadrants carried by said frame, a pair of bars, mechanism connected with said bars for shifting one of said quadrants, mechanism connected with the other of .106 said bars for shifting the other of said quad rants, means for locking said quadrants in their shifted positions,a set of keys, a universal bar arranged to be engaged byeach of said keys, and a means actuated by theme-- .movement of said universal bar for releasying the locked quadrant, thereby permitting its return to its normal position.

21. In a typewriter, a frame, a pair of type bar quadrants carried by the frame, a central 1 guide bar disposed between said quadrants, a set of keys comprising two groups, said groups'being separated by a space in alinement with said central guide bar. 22. In a typewriter, a frame, spacing mech- 1 anism actuating means carried thereby, a space bar disposed on the inside of the frame for operating said spacing mechanism actuating means, a pair of auxiliary bars dis-' posed outside of the frame at the front 1 thereof and parallel with said main space bar, said auxiliary space bars being pivoted at the rear of the frame, means connecting each of said auxiliary bars with said spacing mechanism actuating means for operating the latter, a pair of shiftable type bar quadrants carried by Said frame, individual means connected with each of said auxiliary bars for shifting one of said type bar quadrants, and means for locking the type bar quadrants in their shifted positions.

' bar, said auxiliary space bars being pivoted at the rear of the frame, means connecting each of said auxiliary bars with said spacingniechanism actuating means for operating the latter, a pair of shiftable type bar quadrants carried by said frame, individual means connected with each of said auxiliary bars for shifting one of said type bar quadrants, means for locking the type bar quadrants in their shifted positions, a set of keys, and means including a universal bar arranged to be operated by any of said keys for releasing either of said quadrants from its locked position, thereby permitting its return to normal position.

24:. In a typewriter, a frame, a type bar segment composed of two parts, means for shifting either of said parts independently of the other, and means for shifting the segment as a unit.

25. In a typewriter, a frame, a type bar segment composed of two parts, means for shifting either of said parts independently of the other, said means comprising an actuating member connected with one of said parts, and a second actuating member connected with the other of said parts and movable relatively to the first named actuating member, and means for locking said actuating members together.

26. In a typewriter, a frame, a type bar segment composed of two parts, means for shifting either of said parts independently of the other, said means comprising a sleeve connected with one of said parts, arod' connected with the other of said parts and movable relatively to said sleeve, and means for locking said sleeve to said rod.

MAURICE N. TRONE.

Witnesses:

L. A. STANLEY, SoLoN O. KEMON.

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