US1245535A - Type-writing machine. - Google Patents

Description

B. W. TUCKER 6L L. J. IJIRAND.

TYPE WRITING MACHINE, APPLICATION FILED ra.21.'1914.

Patented Nov. 6,1917;

3 SHEETS-EU r.

B. w. TUCKER & L. J. D|RAN.D.

TYPE WRITING MACHINE. AR-PLICAUQN FILED FEB.21| I914.

1,2455% Paten tedNov. 6,1917.

- 3 SHEETS-SHEET 2.

., wiicw meag I Swua wto'w/ I B. w. TUCKER & L. 1. DI RANDJ TYPE WRITING MACHINE. I

- A PPLICATIDN FILED FEB. 21. 1914 1 ,245,535. Patented Nov, 6, 1917.

, 3 SHEETS-SHEET New York, respectively, have invented cer- UNITED STATES rA'r NT onnron.

IBENJAMIN TUCK ER,'OF SOUTH ORANGE, NEW JERSEY, AND'LOUIS J. DIBAND, 0]! NEW YORK, N. Y., ASSIGNORS, BY MESNE ASSIGNMENTS, TO- CORONA TYPEWRITEB COMIANY, INCORPORATED, A CORPORATION OF NEW YORK.

To all whom it may concern: 3/

Be it known that we, BENJAMIN W. TUCKER and Lotus J. DIRAND, citizens of the United States, and residents of South Orange, county of Essex, and State of New Jersey, and of New York, couptyand State of tain new and useful Improvements in Type- \Vriting Machines, ofwhich the following s a full, clear, and exact description.

This invention relates more part cularly to foldable visible or front striketypeyvriting machines.

One of the principal objects of theinvention is to provide a machine having a standard or universal keyboard whichdsmounted on a member of the machine frame, and

which is adapted to fold upward and rearward toward the platen carriage in order that the machine may be made more compact when not in use to adapt the same for convenient transportation and for other purposes.

keyboard includes the spacing bar and platen ,shift key or keys.

Other objects of the invention are to pro vide means whereby the type-bars, ribbon and escapement mechanisms are out oi: c0-

' operative relation with the keys when the latter are moved to a compact position, and to provide a construction wherein the delicate parts of the machine are protected against accidental operation when the parts are in a folded or compact position.

A further object of the invention is to provide a machine which while foldable has the appearance of the usual visible typewri'ting machine.

A still further object of the invention is to provide a machine which comprises comparatively few parts and which is adapted for general oflice use as well as for the use of travelers and those requiring a portable machine in which lightness and compactness is a desirable element.

With these and other objects in view, the

TYPE-WRITING MACHINE.

put in the claims at the end of the descrip- In the drawings, Figure 1 is a plan view, partly broken away, of one form of machine embodying the invention, showing the parts in normal operative position.

2 is a side elevation. Fig. 3'is a side elevation showing the parts n a folded position and of a form wherein the keyboard is adapted to be moved into is a detail view of the spacing key the Fig. 11 is a, horizontal section of one part of the key action.

F1g. 12 is a fragmentary side elevation; and Fig. 13 is an end section of the part Shown in Figs. 11 and 12.

Figs. 14 to 16 are views similar to Figs. 11 to 13 except that a slightly different form of key action construction'is shown.

Figs. 17 to 19 are viewssimilar to 'Figs. 11 'to 16 except that a slightly different form of breakable key action connection is shown.

Flg. 20 is a side elevation of a machine somewhat like that already described, except "that the type-bars are operated by a pull actlon instead of a pushing action as in the other figures.

Figs. 21 to 23 are detail views of the key actions of the printing characters.

Fig. 24 is a detail view of the spacing key action; and

Figs. 25 and 26 are detail views of a of the platen shift mechanism.

The frame of the machine comprises a mam member 10 and a foldable member 11. The main member 10 is adapted to support the main mechanism of the machine and the member 11 is adapted to support the ke part . Patented Nov. 6, 1917. 1/ Application filed February 21, 1914. Serial No. 820,206.

board or that portion which contains t 0 operating finger keys. The main member 10 as well as the member 11 may be made of. sheet steel, aluminum, or any other ma.- lerial andmaybe of such a character as to be light and strong. As shownfthe member 10'compr1ses side plates orgnembers 12 anda rear plate or member 13. The member 10 is open at the front part thereof and has an extension 14 above the upper edge 15 of the sides op plates 12. The extensions or hinging parts or lugs 14 of the two side plates are in alinement and hinged or pivotally held to the extensions or parts 15 by screws 16 otherwise are lugs .or projections of the foldable keyboard frame member 11. The keyboard member 11 has side portions 17 which are connected by a transversely extending integral bar or rib l8, and at the upper edge thereof curves upwardly to provide one more parts or feet 19. The part or parts 19 are adapted when the member 11 is moved on its hinge or pivot 16- to rest upon the upper edge 15 in the manner shown in Fig. 3, thereby sup porting the frame member 11 together with the parts or lreys movable therewith in substantially overhanging relation to the platen carriage as will be presently described The member 11 has side plates 20 which may form an extension to the sides 17 and which are adapted to extend inward so as to substantially abut against the inner faces of the side plates 12. Extendin versely between the sides 20 are re s 21, 22,

trans- 23 and 24. These rods are rigidly held between the sides of the foldable frame member 11 and each rod or bar is adapted to form a support for a set or bank of lovers 25 on the outer ends of which are the usual character keys 26. There are three rods for the character or printing keys, the purpose of which is topermit the fulcrums or plvots of the several series or banks of keys to have substantially the same leverage in order that a substantially uniform touch for the operator may be provided. The keyoperated levers 25 are each normally forced in one direction' by a spring 26, one :end of which is fastened to each key-lever and the other end to a transversely extending angular bar or rod 27 mounted between the sides of the foldable member 11.

Each key-lever 25 forms a break joint with an auxiliary lever 28, the latter'in effect being a continuation of the key-levers 25 except for the break joint connection which. is provided to adapt the frame member 11 with the key-levers 25 to be folded therewith for compactness, and which are so arranged that/each key-lever will select and immediately and directly engage its "own corresponding cooperative auxlllary lever when the member 11 is moved to an -60. leven. The ends of the levers 28 may have '1 a part or member 29, Figs. 11 to 13, se- 1 cured thereto by rivets or otherwise.

part 29 is bifurcated to span the outer end 66 of the'lover28 for securing purposes and nfolded and normal operative position. Each pair of cooperating levers and 28 thus form in effect a two-part key-operated The along the several bars or supports.

is also bifurcated, as at 30, between which bifurcated portion is a roller 31 which is adapted to form an anti-friction bearing surface for the lower edge of its coiiperating lever 25 when the said lever is in an operative position. Instead, however, of the construction shown in Figs. 11 to 13, the ends of the lever may be constructed vas shown in Figs. 14 to 16, which differ only in that the part 29 instead of beingbifurcated for the reception of the key-lever 25 for securing purposes is simply provided with a flange 32 for securing purposes, while in Figs. 17 to 19 the ends of the levers 28 are bent or formed with an integral portion 33. This part 33 has a horizontal part 34 and an upright part 35 separated from the main part of the lever to provide a s ace for an anti-friction roller 36 against w ich the key-lever 25 may rest, the space being of sufiicient width to retain and guide its cooperating key-lever in proper relation thereto during the normal operation of the machine. The levers 28 are likewise arranged in sets or banks and the different sets of levers 28 are pivotally supported upon transversely extending bars or rods 37,

38 and 39, respectively. The rods or supports 37 to 39 are arranged in parallel relation to the rods 21 to 23 and under the same and so that said levers 28 are su ported above the rods 37 to 39, while e key-levers 25 are suspended from their supporting rods. Each of the key levers 25 as well as the levers'28 are supported onthe rods by an integral bearing'formed by lugs v 40 and 41 which are spaced apart and are connected together by a bar or portion 42 Fig. 8,,which serves to provide an extended bearing arid which ma also serve as a means for properly spacing the levers apart lever 28 extends inward and downward and is normally forced in one direction by a spring 43 oneend of which is connected at its inner, end to the lever 28, and the other end of which spring is held to a transversely extending bar or plate 44. The springs 43 and 26 therefore serve to hold the lovers 25 and 28 in normal operative position and to restore them to their normal osition when any one of the key-levers is epressed.

At the inner extreme end of each lever 28 is a link 45 one end of which is connected to a key-operated lever 28 and'the other end to its cooperating type-bar 46. Each typebar 46 is pivotally supported at one end, as at 47, in a hanger 48 or other support arranged on the transverse frame plate 13 of the main frame member 10, and the other end of the ty e-bar 46 is provided with a Each type head or lock 49 on which may be arposes and in certain instances only two types may be used if desired in which case the number and arrangement of the ke -levers and type-bars may be chan ed. T ie type headsmay rest on acushion el'd to a transverse plate extending betweenthe sides 12 of the main frame member 10. It will be evident, therefore, that as each key-lever is i depressed, its motion will be imparted to its cotiperatin lever 28, and by means of the link 45 will force a type-bar upward and rearward against a platen 50.

A platen carriage- 51 is movable lengthwise and transversely of the machine on a bed 52 in which the platen is rotat'ably mounted. The carriagcmay have a sliding connection as by a. rail 53 along one edge thereof and at the rear edge may have one or more rollers 54 which are adapted to travel along a rail 55 of the-carriage bed in the letter-space moveinentof the carriage, or balls or other anti-friction devices, as well as other means for pro erly holding the carriage to the carriage ed may be provided as preferred. Thecarriage bed may be supported at or near its ends by horizontally extendin bars 56. These bars 56 are held to vertica ly movable slides or posts 57 which may be guided at the up )er portion thereof in brackets located at t e rear corners of the machine frame. The slides or osts may be connected together transverse y of the machine by means of rods or otherwise, and at their lower ends may also be connected by a rod, as 58, to properly hold the slides apart and to cause them to move uniformly by the platen shift mechanism. The platen shift mechanism; may be of any suitable kind. As shown, Figs. 1 to 3, and Figs. 9 and 10, there is a lever 59 which is ivoted, at 60,to a transversely extending rod. This lever 59 is normally forced in one direction b a spring 61 and at its outer end ma bebi urcated and provided with a roll which is adapted to be engaged by the lower edge 62 .of'a second lever 63. The two lovers 59 and 63 form a substantially two-part lea spring 64, the said spring being attached at one end to the transverse bar 27. At the outer end of the lever 63 is a key or finger piece 65 by which the said lever ma be depressed for platen shift purposes. T 1e inner end of the lever or part 59 is enlarged, at 66, and is provided with a slot 67 through which the rod 58 passes and as the lever 59 is inoved on its pivot at the depression of '71 of a shift lever or part 72.

the upper case in close relation to each ot ier on one side of the machine, the said figure shift action being shown best in Fig. 10. This action is also of a two part character to permit folding. The lever 68 has its outer end provided with a key or finger piece 69 and at its inner end, at 70, is pivotally held and supported by the transverse rod 21 and said lever is heldin its normal position bymeans of a spring 71*. The lever or part 68 at its lower edge engages a roller held in a bifurcated end The lever 72 is held to a transversely extending tubular rod 73 and said levcr has its inner end nor mally forced downward by a spring 7 1. At the inner end the lever 72 is pivotally held to the transverse rod 58 so that when the said lever is depressed the slides 57 will be forced upward but to a greater extent than when the key 65 is depressed. The depression of the lever 59 also depressesthe lever 72, but the latter lever may be operated independently.

The connection between the.

member 72 and the relative action between this lever and the lever 59 of the two platen shift movements and the means whereby the said levers actuate a transverse bar in order that the platen may be positively held at the proper point as each shift lever is depressed, is substantially lllBSELlIll! disclosed in the application of Otto Pctermann, Sr. No. 654,758 filed October 14,4911, and is therefore not shown in detail herein. By the means shownthe carriage and platen when An escapen'ient mechanism of any suitable 'kind is provided whereby the carriage may be moved for letter spacing. This escapement mechanism may be of the type shown in the patent to Frank 8. Rose, No. 948,553: dated February 8, 1910, or of any other suit- .able character. The escapcmcnt mechanism may consist of the usual. rack with dogs mounted upon a rocking carrier or arm which is adapted to be engaged by a rocking member in the form of a tappet which is mounted upon a rocking bar 75. The rocking bar is supported .on vertically movable arms 76 or formed integral therewith and said arms are pivotally held to the transversely extending rod 58 so as to rock back and forth thereon and to partake of its vertical shift movement as disclosed in the application or in the patent herein referred to. The arms 76 at their upper ends are connected to the universal bar 78 by arms 79'or otherwise. The universal bar 7 8 may be of an L-shaped angle iron and is,located normallyabove a projecting finger or tongue on each key-operated lever 28, and said universal bar is" supported in the forked ends 81 of spacing/levers 82. The spacing levers 82 havev downwardly extending lugs 83 adapted to be supported on one of the transverse rods, as the rod 39, and at the other end may be bifurcated and provided with a roll adapted to be engaged by the loweredge of the space bar levers 84. These levers 84 may be suspended and pivotally held, at 85, to the transversely extending rod 24, and at their outer ends are connected by the usual spacing bar -86, the space levers being held in theirnormal operative position by means of springs 87, one end being attached to said levers and the other end to the angle plate or bar 27. It will be evident that as each key-lever is depressed for printing purposes, the universal bar will also be operated by means of the tongue 80 to operate the escapement mechanism for letter spacing purposes, and the said universal bar is likewise operated independently of the type-bar operating key-levers each time the spacing bar 86 is operated in order that proper spacing may be obtained between words. v

In the character of machine shown, a standard or universal keyboard is provided consisting of banks or sets of keys, each key operating an independent typebar which is forced upward and rearward for printing purposes and said key-board includes also the spacing bar 86 as well as the spacing lever. It will be seen that each of these keyoperated parts of the keyboard is pivotally supported on a supplementary or folding member 11 of the frame, and each member has its corresponding lever mounted upon the main member 10 of the frame forming substantially a twopart type-bar key-lever action, letter-spacing actlon, and platenshift action, all of said parts mounted upon .the member 11 being adapted to fold u ward and rearward with said frame mem er 11 in order that the machine may be made compact for transportation'and for other pur-. poses and in a way that a minimum number of parts are employed.

The shift levers 5'3 and 68 are each provided with a downwardly and horizontally extending lip on'portion 88 providing above the same a slot 89 either one of which. is adapted to be engaged by the lower end of a finger lever 90. The finger lever 90 is pivoted, at 91, to the frame member 11 and is adapted to be shifted for the purpose of locking either shift lever in its depressed position, and said lever is also provided with as;

a projection, as 92, which is adapted to engage a projection 93 on the shift lever. memjber 68 to lock the same against movementt... This feature is not claimed herein. I v Suitable alining mechanism for thejfii bars may be provlded at the rinting-pbinqij and suitable line spacing mechanism employed for moving the platen the proper" distance for line-spacing purposes. There: may be also provided suitable ribbon rfiechfi 1!. nism by which the ribbon maybe moved both lengthwise and the ribbon vibrated to and from the printing point at each printing, operation in order that the writing may v seen immediatelyafter printing, and the 8]) said ribbon. mechanism may be of such a character that the ribbon may remain iii-'1 active to permit stencils to be made or to adapt the ribbon to have a plurality of fields or colors thereon as is common in many types of machines of this kind. In the drawings, the ribbon spools 93 only are shown and these ribbon spools are mounted to rotate independently upon upright posts 9% carried by the arms'or bars 56. Each ribbon spool may have a worm gear 95 and this worm gear may be engaged by a worm 96 which is rotated by a ratchet wheel 97, the teeth of which are adapted to be engaged by a pawl 98 carried by and rocking with the bar 75 of the upright arms/7 6 so that as the said arms 76 are operated and the pawl moved back and forth, each movement will im art a rotary movement to one of the rib on spools, one of which spools is held fast to move with the worm gear 95 and the other of which is free so that the ribbon may be wound on or unwound from either of the spools according to which spool is positively rotated in the usual manner. The line spacing, ribbon mechanism and certain other features referred to herein may be substant'ially the same as disclosed in applications filed or patents issued in the name of Otto Petermann.

Figs. 20 to 26 show a machine in which the key action exerts a pull upon the typebars instead of a push as in the construc tion. already described. The construction also shows the universal bar as located under the key-operated levers instead of above the same and further shows a modified form of platen shift mechanism. As in the other construction there is a break in the key action and instead of the foldable parts ormembcrs of the key action being supported from different transversely extending rods, all of such levers or parts are supported from a single rod, the bearings being arranged about the rod so that they will not interfere during the printing, or other action.

Each lever 99 has on its outer end a key or finger 100 and said lever is pivotally held at its-inner end to a transversely extending rod 101.- Thelevers 99 are provided wit an integral bearlng consisting of lugs spaced a, bracket or extension 103 secured to or formedasa part of a lever 104. The lever 104. forms 'onepa rt of each key action and is suspended on a transverse rod 105 which is carried upon the main frame member 106, the transverse rod 101 being mounted u on the foldable member 107 of the frame. .he lever 104 is held in itsnormal' position so asto be engaged by its cooperating lever '99 by a spring 108. A link 109 connects each lever 10a to .a lug or projection 109 extending rearward from each type-bar so 100 is operated, the lever ward and through the link 109 will force the type-bar to printing position, there being a comb plate 110 to guide the inner end of each lever 104. The several banks of keys of the key action 'are similarly constructed and the same reference numerals are therefore applied, the diflerence that the distances between the brackets and the '13 purposes. The levers 113 have downwardly extendin slotted guide portions 114 for the universe bar 115 so as to exert a downward thrust thereon instead of upward, said universal bar being connected -to bell-crank lovers in substantially the same manner as already described, except that in this case the horizontal arms of the bell-crank levers poses and which case a extend rearwardly instead of forwardly a in the oth'erconstruction.

I ","In the platen shift -movement of the cona t. 'ertical osts or ,slidegb struction of machine shown in Figs '20 to 26 "and shown in detail in 25 and 26, the operation 'is somewhat similar to that shown'in Iiigs. 9 and 10. For printing capitals or u per case characters, the lever 116 is pivota ly held at 117 to a transversely ex ending 'rod and is connected directly to which the carriage is e evated as 'alrea y described, and at the outer end of said lever is a roller 11 8 which is engaged by the lower edge of a shift lever 119. The shift lever 119 is also pivoted to the transverse rod 101 and at its outer end is provided with an operating key 120 and is held in its normal position by a spring 121. As the key 120 is depressed :1 like movement will be imparted to the outer end of the lever 116 so that the inner end of the lever 116 will be forced upward carrying with .it the platen and car wage. The shift mechanism for figures and like characters shown in Fig. 26 is substantially the sameexcept that a different throw is provided to place the platen and carriage in a relatively different position with respect to type on the type-bars. The lever 122 is held at 123 to a transverse bar and is likewise connected directly to the posts for shifting the carriage and platen, and its outer end has an anti-friction connection with the lower edge of ashift lever 124:. The lever 124 is p1voted-to;.the transverse rod 101 and is held; in itsn ormal position by a spring 125, thevouter end of said lever being rovided with a finger key or part 126. ach of thevle-vers 116 and 122 is provided with a projection 127 of relatively different distances from the levers. The projection 127 0 the lever 116 is ada tedto engage a screw 128 held to abrac et' on'the main member-106 ofithe' machine frame and therefore limits the throw of said lever 116. A shorter adjustable stop or screw 129 is also heldin the keys and a part of the action including the type-bar key-levers, the spacing key-levers and platen shift levers mounted u n the frame 107' are adapted to be fol ed u wardly and rearwardly therewith to ma e the machine compact as already explained. v It will be understood that the machine herein described is adapted tobe packed in a special case for carrying orstorage purso serves as a means to keep the machine free from dust. The carrying case may be of such acharacter that the machine may remain therein when in use or may be removed from the case as preferred. I 1 From the foregoing, it ,will be seenthat simple means is providedwhereby a typewriting machine of the visible kind may be folded so .as'to make the same'more compact than when in use; that Eefiective means is provided whereby a standardkeyboard ivots of said i may be employed'and at the same time er wit the par s to be p p y operated-w e 1, v

, that simple means is provided whereby the various parts of the typewriting machine may be operated from the keyboard in a manner similar to the ordinary visible writin%machine.

' aving thus described our invention, we claim as new and desire to secure by Letters Patent tion of a main frame, a foldable frame member pivotally held to the .main frame at the upper portion thereof and foldable upwardly and rearwardly to make the machine compact when not in use, key-operated levers pivotally held to different supports in the foldable member and foldable upwardly and rearwardly therewith, said levers having parts arranged in alinement transversely of the machine in the same horizontal plane and carryin keys arranged in banks, a series of horlzontally arranged levers having parts thereof located below the keyoperated levers and directly engaged by said transversely and horizontally alined parts of the key-operated levers, said horizontally arranged levers being pivotally held to the main frame on different transversely extending supports arranged in the same horizontal plane, and type bars supported on the main frame and operatively connected with said horizontally arranged levers.

2. In a visible typewriting machine, a main frame member, a foldable frame member pivotally held to the main frame member and provided with 1neans adapted to enga e the upper portion of the main frame member and be supported thereby when the said frame member is moved to a folded position over and above the main frame member, and a standard keyboard mounted to fold withthefqldable frame member.

3. In a 'typewriting machine, a main frame member, a foldable frame member pivotally held to the main frame member and provided with feet adapted to engage the upper portion of the main frame when the said frame member is moved to a folded position over and above the main frame member, and a standard keyboard mountedto fold with the main frame member.

4. In a visible typewriting machine, a main frame member, a foldable frame member pivotally held to the main frame member and provided with feet at opposite sides thereof adapted to enga e the upper edge of the main frame mem er when the said frame member is moved to a folded position over and above the main frame member,

and a standar'dkeyboard mounted to fold with the main frame member.

5. In a typewriting machine, the com" bination of, :uplaten carriage, a. support 1. In a typewriting machine, the combinatherefor, a plurality of upwardly and rear- Wardly striking type-bars, a link for each type-bar, a plurality of levers onefor each link and type-bar arranged in banks or sets to provide fulcrums of relatively different distances from the point of OOIIIIBClLIOIl Wlth the links, a plurality of key-levers having a break joint connection with the first-memtioned levers and correspondln in number therewith and suspended also 1n banks or sets, a frame member-forming a support for the first-mentioned levers, a frame member pivotally held to the main frame member and forming a' support for the key-levers and adapted to be folded upward and rearward with. the keylevers for the pprpose of making the machine compact and to place said key-levers out of operative relation with the first-mentioned levers, and spacing and shift levers also mounted upon the foldable member of the frame and having a break connection with other levers on the main member of the frame and foldable with the key-levers and combinin with the key-levers to make a standard key card.

6. In a typewriting machine, the combination of a platen carriage, a support therefor, a plurality of type-bars, a link for each type-bar, a plurality of levers one for each link and type-bar arranged in sets to provide fulcrums of relatively different dis.

tances from the Point of connection withj/" the links, a plurality of key-levers forming" a part of a standard keyboard and having a break joint connection with the first-men tioned levers and corresponding in number therewith and suspende'd in banks, a frame nation of a platen carriage, a support therefor, a. plurality of upwardly and rearwardly striking type-bars,-a plurality of horizon tally arranged levers one for each type-bar and operatively connected therewith and arranged in banks to provide fulcrums of relatively different distances from the point of connection with the type-bars, a plurality of horizontally arranged key-levers having a break joint connection with the first-mentioned levers and. corresponding in number therewith and also arranged in. banks, fold able means forming a support for the keylevers to adapt said key-levers to be moved 1nto owerhanglng relation to the type-bars,

and spacing and shift levers also mounted upon the foldable member of the frame and 20 for the first,

having a break connection with other levers andfoldable'with the key-levers and com- 4 bihing with the key-levers to make a standard keyboard.

5- 8. In, a typewrlting machine, the combihorizontally substantially parallel'with the normal position of the type-bars and under the same, a plurality of pivotally held keylevers having thehi eutire body portion extending substantially horizontally and having their inner portion lnterposed between the type-bars and the first mentioned levers and directly over said latter, levers and forming a break-joint connection therewith, .a main frame nember forming a support htioued levers, and a frame member for ing a support for the keylevers and pivotally held to the main frame member'at a ,point to swing the key-levers substantially horizontally away from the 2b first-mentioned levers'and break the counection therewith and move the lovers upwardly and rearwardly over the main frame member .to a more compact posltlon.

a i 9. In a typewriting machine, the combi 80 nation of a laten carriage, a plurality of pivotally he (1 type-bars pivotally held levers connected to the type-bars and extending substantially horizontally, a plurality of pivotally held key-levers having their entire body portion extending substantially horizontally and having their inner portion interposed between the type-bars and the first-mentioned levers and directly -over said latter levers and forming a break- "Q'jOlllt connection therewith, a main frame member forming asupport for the firstmentioned levers, and a frame member forming a support for the key-levers and pivotally held to the main frame member to move the key-levers away from the firstmentioned levers to a more compact positioni 10. In a typewriting machine, the combi nation of a platen carriage, a plurality of '60 type-bars having a substantially horizontal normal position, a plurality of substantially horizontally arranged levers located under the type-bars, and a plurality of substantially horizontally arranged key-levers 65 forming a part of a standard keyboard and arranged in banks and having a part thereof interposed between the type-bars and the first-mentioned levers, said key-levers having a break-joint connection with said firstmentioned levers and movable from a normal operative position to a more compact one.

11. In a typewriting machine, the combination of a platen carriage, type bars, horisupport to fold therewith, the inner ends of said key-levers directly engaging the levers located under the type-bars when the keyboard support is in normal position and having a break joint connection with said levers.

'12. In a typewriting machine, the combination of a platen carriage, and two-part substantially horizontally arranged platen shiftlevers having a portion of one part 10- cated'over a poi-non of the other part and forming a part of a standard keyboard and foldable toward the platen carriage from a normal operative position to a more compart one.

13. In, a typewriting machine, the combination of a platen carriage, and two-part substantially horizontally arranged shift levers ha vinga portion of one part overhanging the other part and movable from a normal operative position to a more compact one.

14. In a typewriting machine, the combination of a platen carriage, escapement mechanism, a universal bar, and two part relatively foldable substantially horizontally arranged spacing levers having one part overhanging the other part and arranged in substantially parallel relation.

15. In a visible typewriting machine, the combination of a platen carriage, a plurality of upwardly and rearwardly striking type-bars, a link for each type-bar, aplurality of levers one for each link and typebar arranged in banks and having fulcrums of relatively different distances from the point of connection with the links, a plurality of key-levers having abreak jointv connection with the first-mentioned levers and correspondin in number therewith and suspended in ban s, a frame member form ing a support for the first-mentioned levers, and a frame member pivotall held to the main frame memb'er and forming a sup ort for the key-levers and adapted tobe folded upward and rearward with the key-levers for the purpose of making the machine comof upwardly and rearwardly strikin typebars, a plurality of levers operative y connected to the type-bars one for each type; bar, said levers beingarranged in banks, a plurality of horizontally arranged key-1evers having a break joint connection with,

the first-mentioned levers and corresponding in number therewith, said key-levers being suspended in banks and foldable with respect to the first-mentioned levers, and foldable spacing and shift levers having a break connection with other levers and combining with the key-levers to make a standard keyboard.

17. In a typewriting machine, the combination of a platen carriage, a support therefor, a plurality of horizontally arranged type-bars, horizontally arranged levers connected therewith and arranged in sets with different fulcrums for each set, horizontally arranged suspended levers having a brea joint connection with the first-mentioned levers and forming a part of a standard keyboard, said suspended levers being arranged in sets and having different fulerulns for each set, and means whereby the last-mentioned levers may be moved out of cotiperative relation to the first-mentioned levers.

18. In a typevvriting machine, the combination of a main frame, a platen carriage, type bars supported on the main frame, a plurality of levers supported on the main frame and operatively connected with the type bars, a keyboard su port held to the main frame and movable rom a normal operative position to a more compact position.

and a plurality of groups of levers carrying,

keys arranged in banks, the groups of key levers bein pivotally held at their inner ends to t e keyboard support at different distances from the rear end of the support and being movable with the support to compact position, all of said key levers engaging the type bar operating levers at points in alinement transversely of the frame and having a break joint connection with said levers.

19. In a typewriting machine, the combination of a main frame, a platen carriage, type bars supported on the main frame, a plurality of'levers supported on the main frame and operatively connected With the type bars, a keyboard support pivotally held to the main frame and foldable'upwardly and rearwardly from a normal operative position to a more compact position, and a I plurality of groups of levers carrying keys arranged in banks, the groups of key levers being pivotally held at their inner ends to the keyboard support at different distances from the rear end of said support and being movable With the support to compact position, all of said key levers engaging the type bar operating levers at points inalinement transversely of the frameand having a break joint connection with said levers.

20. In a typewriting machine, the combination of a main frame, a platen carriage, type bars supported on the main frame, a

plurality of levers pivotally supported in the main frame and operatively connected to the type bars, a keyboard support held to the main frame and movable from a normal operative position to a more compact position, and a plurality of groupsof levers mounted on said support and movable there with to compact position, the levers ofeach group being of different length andsupporting keys arranged in banks, and the levers of each group adapted to engage the type bar operating levers at a different distance from the pivotal points of said type bar operating levers.

21. In a typewriting machine, the combi nation of a main frame, a platen carriage. type bars supported on the main frame, aplurality of levers pivotally supported in the main frame and operatively connected to the type bars, a keyboard support held to the main frame and movable from a normal operative position to a more compact position, and a plurality of groups of levers mounted on said support and movable there with to compact position, the levers of each group being of different length and supporting keys arranged in banks, and the levers of each group being adapted to engage the type bar operating levers at a different distance from the pivotal points ofsaid type bar operating levers, and at different distances from their ovvn pivotal points.

22. In a typewriting machine, the combination of a main frame, a platen carriage, type bars supported on the main frame, a plurality of levers pivotally supported in the main frame and operatively connected to thetype bars, akeyboard support held to the main frame and movable from a normal operative position to a more compact position, and a plurality of groups of levers mounted on said support and movable thcrewith to compact position, the levers of each group being of different length and supporting keys arranged in banks, and the levers of each group being adapted to engage the type bar operating levers at a different distance from the pivotal points of said type baroperating levers, the points of engage ment between all of said levers being in alinement transversely of the frame.

23. In a typewriting machine, the combination of a main frame, a platen carriage, type bars supported on the mainframe, a plurality of levers pivotally supported in the main frame and operatively connected to the type bars, a keyboard support held to the main frame and movable from a normal operative position to a. more compact position,

and a plurality of groups of lovers mounted.

on said support and movable therewith to compact position, the levers of each group being of dlfl'erent length and supporting keys arranged in banks, and/ the levers of each group being adapted to engage the type This specificjation signed and witnessed bar operatmg levers at a different distance thi 20th day of February, A. D. 1914,.

from the ivotal points of said type bar BENJAMIN W. TUCKER. operating e'vers, and at different distances LOUIS J. DIRAND.

5 from theirpwn pivotal points, the points \Vitnesses:

of engagement between all of said levers be- LESTER C. TAYLOR,

ing in alinement transversely of the frame. C. BARTELS.

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