US975739A - Type-writing machine. - Google Patents

Description

C. D. WALLACE. TYPE WRITING MACHINE. APPLIGkTION FILED MAY l0, 1904.

Patented N0v.1`5,191o.

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Patented Nov. 15, 1910.

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H15 TTEIRNEY a specification.'

' 1 UNITED STATES reif-ENT @time CASPER n. WALLACE.' oF BRIDGEPORT, certainement Assioiiron 'To YOST. WRIHNG MACHINE companions 1mois,l NEW Yonx, 'A conPonATIon or `maw YORK.

' TYPE-warmste MAHINE.

' State of Connecticut, have invented certain new and useful Improvements in Type- Writing Machines, of which the following' is l My invention relates to typeyvriting ma chines and more particularly to the cntriagel feed mechanism and to the'type of such machines. f

It 'is frequentlyV desirable to yvriteinatte'r. in larger characters than are ordinari-l. sed' in Writing machines and at thesame' time to have the .machine .available for Writing in. smaller characters, so thatl part ofthe-inatcharacters and part inthe smaller. i

The' main object. of this invention lis toprovide a machine` in which matter koi' this general nature may be Written. .As herein shown, the type characterswemployed are terwritten may, if necessary, be in the'V larger large capital letters and smaller capital letters, but I desire it to be understood that large and small characters of 'anyA other style oi' kind may equally Wellfbe usedwithin the Scope of my invention.

The invention consists in certain featuresv of construction vand combinations of parts,l

all as will be hereinafter set forth and particularly pointed out in the Hsubjoined claims.y f 'A v ,l'n the accompanying drawings, the invention shown applied to a full keyboardv typewriting machine having the' general i characteristics of that commercially known as the Yost No. 10 typewriter, but I do not irish to be limited' tothe particular struc# tureA illustrated,as other kinds-or styles of rear sectiona View, taken centrally-ofv the machine, vshowing my invention applied thereto and with such parts omitted as are immaterial.-

' `Fig. 2 is aplan view ofthe escapeinent mechi agiiism and its regulatingdeyice, connec-` tion With such parts of the machine as are is al plan of the feed dogs and part of the necessary to give a correct understanding of the 4relationof the invention thereto'. Fig. 3

` escape Wheel showing the loose dog out of engagement andthrovvn back intocontact with the regulating stop, the latter being Specification of Letters Patent. Application flied May 1o.

Patentes Nov. 15, 1910. i904. serial No. 207,271.

Shoyv'nrin positionjto permit of thef-eedof single tooth of the escape wheel. Fig. 4

' When the Ylatter is escape of two teet of 'the'esc'ape Wheel.

is a view similar to Fig. 3, but with the loose dog contacting with .the regulating stop piositioned to 'permit the Fig'. 'isnarai elevation of the regulating`f, stop` nieclianisinmounted on the base of thejv;

mcliiii'ndmof a mechanism, the reg ating stop lbeing shotvn thrown. into the position of Fig. 3. F id. 6

- is a reary elevationof the lrefrulating mec a`- p nisin and of the back part oithebase of the machine on which it is mounted, the regulating stop being shov'vn' in thel position of 1g. 4. Fig. 7 .is a plan of the for'fvvard end of the Vtype guide, onev of the smaller char- Ouide in the print i p laan of the4 forward end of the type guide, one' of thel larger the print of thismachine, the iip er line bein" entirelyinlarge capitals and t le lower line aving an initial large capital followed by small capitals corresponding to thefla'ige capitals'in 4the top line.

throughoutthe several views, wherein 1 is maintaining the corner posts 3whic' in turn sustain a type ring 4. Bearing brackpart ofthe escapernent u LikeI parts are designated by like miniera-ls the base ofthe machine,'2 the base "late ets 5, mounted on the type ring, support Ward end a guide .opening v11 Yfor the types.

pivotally supported on kthe carriage truck and has a bearing Wheel 14 which runs on a frontrail `15, the latter in turn being sustained by the typev ring 4. The ty fe ring* is provided with radial slots. i6 for te reception of driversy 17, each driver havinga hook-like projectiony 18 bearing' :iifpon a' cir'- fthe type ring. The lower `end of each l driver -vvays 6j, provided with oppositely faced A platen frame 12, Vcarrying the platen 13, is,

-Way 6 is a type guide 10, lhaving at its o'risupivoted toa type carrierV 0r 'bar/.20,

which latter is pivotally connected at its lower end to the end of a guide link 21, saidguide link having at its other end a disklike portion 22, which is held in a bearing formed of two circular plates 23 and 24 suitably fastened together and supported centrally of the type bar basket.l

The type face 25 of the type block 26 on the end of each type' bar normally rests against an inking pad 27 supported on the type ring. vAs best appears in Figs. 7 and 8, the type faces are of two kinds, while the type blocks are of uniform dimensions in orderto t the guide-opening 11 in the center gui-de 10. Fig. 7 shows a type which occupies but half the width of the face, this half being the right hand half and the lines I 'of the rcharacter occupying the right half 'upper corner qf the face when the type is in printing position and is viewed from above and fromjhe front'of the machine, as is the zcase in Fig. 7. The type shown in Fig. 8 is one of the larger size and the size of the character is limited only by the boundaries of the face of the type block. Y i The driver 17 of each type 'carrier or bar 1s provided with an extension 28,7which'is connected to the upper end of a connecting rod/29, the lower end whereof is pivotally yconnected to the upper arm of a bell crank 30.the said bell crank in turn being pivoted -at 31 to a stationary part of the machine.

The lower arm of the bell crank has pivoted 3 to it. the rear end of adraw link 32, the forward end of which is pivoted to an actuating blade 33having a stationary pivot 34. Integral with the blade 33 is a grooved arm 35 pivotally connected to which at, 36 is a key `stem 37 terminating in a key capy 38 and connected to the lupper guide arm 39, which latter has a stationary pivot 40. A contractile spring 41, having its ends connected to the driver and connecting rod, assists in restoring the type actuating mechanism to normal positlon after the type has been actuated to print in the well-known manner of this style of machine.

The-drawings illustrate completely the typeactuating mechanism of onlyl a single t pe'-, .but it will, of course, be understood that; the machine is provided with the usual complement of keys, types and type connecvstance by a set of keys which actuate types of the larger size, as shown inthe said Fig. 8.\ The lower section or half of the keyhoard, that usually occupied by the smallletter or lower case keys, is here designed Ato be occupied by keys actuating capital therewith during the movement of the type bar toward the printing point. This contact of the guide link with the universal bar 4raises the latter at one side and with it a headed rod A13 which passes loosely through a4 central opening therein. The lower end of the rod 43 isv adjustably connected with a block 4l. which is pivoted at 45 to Van arm 46, which is the forward arm of the dogl rocker. The latter comprises in addition to the forwardly extending arm 46, a hub 7 from which the arm L16 extends, the rear arm d8 and t-he downward arm 49, both likewise extending from the hub 47. The downwardly extending arm 49 carries a link 50 with which the draw link of the spacing bar (not shown) connects. A rock shaft 5l passes through a central perforation in the hub 4T and is rigidly connected to the latter by a screw 52. Therock shaft is seated in side bearing brackets 53,'which are secured to the base plate 2. Extending rearwardly from the rear arm 48, to which it is connected by screws 54, is a rigid dog of ordinary construction. Pivoted to a shouldered screw 56, which is screwed into the rearward plate 48 from beneath and secured in place by a nut 57, is aloose or limber dog 58. The normal position of the loose or pivoted dog 58, that is, its position when in engagement with the escape wheel, is such that its working face is in the same vertical plane as the working face of the rigid dog This relation between the two dogs is secured and maintained by an adjustingscrew 59, which is screwed into the side of the rearward arm 48 and against the end of which the left hand face ofthe loose dog 58, considered from the front of the machine, normally bits. A wire spring 60, coiled around the lower port`i`n of the pivotal shouldered' crew 5G, has one end secured to a pin 6l in the under side of the rearward plate 48 and the other end secured to a pin 62 in the nder side of the loose dog 58.v The spring 60 tends to throw the losse dog 58 to the right, considered from the front of the machine, when the said dog isreleased from the escape wheel and this movement of the dog continues until checked by means to be lpresently described. The loose dog 58 provided with a spuror finger 63, the purpose of which will subsequently appear, and the said dog normally engages with the teeth 64 of a horizontally disposed escape wheel 65. The escape w'heel. as is seen ,in Fig. 1, lis integral with a carrier 66, the depending stem 67 whereof extends through av sleeve 68 fixed within an opening in the base 'The carrier 66 operatively connects the 'escape Wheel' with r the `vertical. shaft 69, `near 'the 'upper end lo'f which'is fixed a pinion y i YO'which meshes with the-carriage feed rack' 519thus connecting 'thefcarriage with 'the' esjicapem'ent mechanism, y"all 4as in said Yost "machine g i y The "width :of one Vset Vof characters -emplayed in this machine fis, 'as has beenpre 1Q viously set 'forth, twicefas reat as that of v` tl1eoti1"er"set emnloyedand 1t will therefore apparent that itwillfbe'necessary to vfeed *the "carriageftwice" as ffa'r when one of the Lrformer characters 'isprinted than it will be whenonefdf the latter characters-'is 'printed "finjorder tto" secure uniform spacing. Hence f it is fnecessary. to ffe'e the escape 'wheel AIAor fcrcular'frack I'f 'two teeth when one'o'fthe "larger characters is printed* and 'one tooth 4l'when jonefofthe' smaller "characters 1*is print- ".ed. 'The' mechanism to accomplish this `lref sultwillnow be described. l

` Referring more especiallyto Figs. 2,"51and .6, 71 designates a vertical bearing post fixed "tofthe 'base "plate 2 at the'righthand side 'ofthe machine 'and to :the rear: of the Areguflar keyboard. A rocker72 is'pivoted at 73 in-'a'vertical slot 'or-'cutlaway 74 formed in ,"thetopfdfj'the bearing post71. l A notch 75 -is formedcentrally of the rocker 72 zso as to stra'ddle the post'71 when the rocker is in position 'and the .sides ofthe said notch act as s'tops'to limitthe movement of the rocker about its pivot 73 in either directicui. vTo

l76 fisattachedfthe top ofwhic'h is ffurnished *with a letter "s in 'a correspondingto *the character on;the typ'effa'ce shown in big. `l8.- Tivoted at78`to the rocker and'midway betweenthepivot andthe key button'7 7 is ljadepending link 79, thelower end of which isfpivoted at l80 to 'theleft hand'end-'of a lsxibstantially 'horizontalarm '81 rigidly connectedfwith the fforwardend of arock shaft 82. 'The' rockshaftthasits hearings in right. angled brackets v83, suitably'attached as by screws S4 to the'base plate 2. The'i'ear end -dfthe*roc`k shaft 82'carriesa substantially "-l'vertica'larm `tijprovi'ded with la collar 86 and a'setscrew '87,whereby it is'attached to i the=rock shaft '82 at right angles -to the forwardarm 81. Pivoted'tothe lower end of thearm"`-85at"88 isitheright hand end of a sliding stopfbar A89, which terminates near the center 'of the machine, and, near-its left- `hand end,passes through a suitable onening. in a guide plate -90,"which is rigidlV attached 'by screws y91 to ther right-hand bearingbracket 53; The said stop bar isv adapted to slide back and iforth in :the guide plate 90 above the rightfhand'bearing-bracket 53 and in `the horizontal plane occupied by the ioosedog4 58.

It Wilv be apparent ifrom the drawings-i 55 and description that-the' rock shaft 82 and at right iangles to -each other, constitute in #effect 'a .bell crank, which is actuated,

foftheikev'buttons 76 or 77, torthe positions shown respectively 'in Figs. 45 and. These devices are maintained .in either of .fsaid :po-

'sitionsby a spring-stop 92'whichisattached -`by 'a screw 93 Atofthebearing:post 71.and cosacts with the end of arm 82. -It ,will further be apparent that this :actuation ofthe bel-1` crank'fthrough Athe key buttons, .rocker -7 2 andfdepending yllink 79 will fcausetailongi.- it'ndinal 'movement of the sliding :"stop ibar "89, which, Vfasi-previously explained, .is in the fandwhich=serves as alstoptolimt thef'movev:ment `of said (dog about fits "pivot iin. ithe "directionTof 2the 'feathered larrows 1in Figs. s2,

.34and4. Y

' The-operationfof thefdevice-.may be'brie'fiy ,it be :desired 'to print fa 4riserles of =the :lar-ger characters, the key button -77 bearing the large .L -f.on` :its topis depressed.- "Considering the i'movements f of the* 'atsffas viewed i in fF'g. f6, this 'depression fo Vkeyfbutton 47 7 llowers 'the Vdepending llink 79, :fdepresses ftheforward arm V81,1turns'the rock shaft in the direction 'of the 'arrow .in Fig. 6 (which fit will be Aremembered is a '.view Ifrom the :rearof the,fmachine), .moves "the .rear arm 85 lto the Vleft about :its pivot s and draws 'the sliding `stop bar fin "the direction 'of `the varvrowthereon in said liigure. The vend of the lstop lb'alr 89 "will then .be vin the .position 'shownin Fig. li.v fIfnowtheikeySS (which it will be remembered -is one vof 'the upper section ,of :keys which actuates the :larger characters) be ndepressed, it will, :as Ais well understood, actuate'theftype to zprint. During the Imovement; of "the "type bar toward the printing'pointthe link-21 is `raised into contact with l'the iuniversalfbare, liftin .it at onev side j an'dfthrough .it the center iro rearward' varm 48 about .its :rock :shaft 51. The depression of the rearward arm carries fthe frigid dog `55 down' into aengagenient with' the tooth 'of -the escape Wheel and "frees the loose 'doi `58 from direction offthe feathered arrow in 'Fig.4 until said do cont-acts with `theendfof ythe. vsliding sto ar 89.' *Afterthe'imprint'of bar 'takes placefand Lin its l.travelFlo ack to-- ward'the ink pad-27 .lowers the guide vlink 21, fpermitting 'the 4universal bar. 42 f'to Areturn to 'normal position.' Thisfmo'vement of the universal' bar permits the downward 1ongitudnalmovement of the rod 43, whichn turn'p'ermits the return :'of the forward arm through tthe 1in-k v79 and rocker 72, lbyither y lsame lhorizontal 'Iplane .fas the Lloose dog E38V the type, t e Ireturnimovement of t-hetype the arms-81 andf85 rigidly mounted thereon fexplained las ffo11ows:--Supposing 'first fthat n10' 43, Vlwhichvl in turnfwill :raise vthe Iforward arm46 of the 'dog rocker-'and depress lthe said'tooth, :permitting the looseY og, under the impulse ofthe spring 60, tormove inthe 46 to normal position and raises the rearward arm 48, lifting the rigid doo' out of the plane of the escape Wheel and bringing the loose dog 58 into the plane thereof. Under the tension of the usual carriage spring (not shown) the carriage is now drawn to the left and the'escape wheel, through carriage rack 9, pinion 70, shaft 69 and carrier 65, is turned in the direction of the arrow in Fig. 4. Itwill be noted on inspecting said figure that though the loose dog 58 when in contact with theend of the stop 89 is outside the field or path of travel of the *teeth 64:, the finger 63 remains in the path of said teeth between the stopping tooth and the next tooth and as the escape wheel 65 turns in the direction of the arrow on the return movement of the dog rocker, the said next tooth, contacting with the linger 63, moves the dog 58 to the left against the tension of its spring and brings the working face of the dog into the field of the second tooth from the stopping tooth, making this second tooth in turn the stopping tooth and allowing the carriage tospace two teeth of the escape wheel, thus providing for the successive `printing of all large capitals, as seen in the upper line of Fig. 9.k

If -n'ow it be desired to change from the larger to the smaller size of letters, the key 7 6`is depressed until the side of the notch 75 contacts with the bearing post 71 and the consequent movement of the parts, as viewed in Fig. 5, will be as follows ;-The depending link 79 will be raised in the direction of its length, causing the rock shaft 82 to turn in the direction of the arrow and moving the sliding stop rod 89 in the direction of the arrow thereon in said figure. This causes-the end of the stop bar 89 to assume the position shown in Fig. 3 and when, as previously explained, one of thel lower banks of keys (not shown.) is depressed and the loose dog 58 is moved by its spring 60 in the direction of the arrow in the said Fig. 8, the said dog will contact with the end of the sliding stop bar 89 before the working face of the dog has passed out of the path of the teeth 64 of the escape wheel. Consequently on the returnmovement'of the rocker the nexttooth to the stopping tooth, moving in the direction of the arrow, will contact with the working face of the loose dog, moving the said dog to the left against the tension of itsspring G0 until it contacts with the end of the adjusting screw 59, thus permitting the carriage to feed only one tooth of the'escape wheel. Thus it will be seen that either size of type may-be used as desired and that by tirs-t depressing the proper iinger key, that is, either key `76 or 77, the carriage will beV caused to space the proper distance for the style of type required at the time. v

It will further be noted that 'at the beginning of a sentence when the key 76, or in by the spacing made by the space key'as a4 preliminary to beginning the sentence, if it be the second sentence or any following one of a series of sentences. The same is true if it be the beginning of a paragraph, since there is no writing to the -left of the initial capital. In other words, the left half of the larger capital will occupy a letter-space that would be utilizedl if a small capital were printedandthe right half of the larger capital will print in the letter-space which a small capital would impress if actuated, the initial larger capital thus occupying a double letter-space and the small letter a single letter-space. as in the lower line of Fig. 9.

This invention is particularly applicable to the printing of labels, index, address or like cards or other similar matter, but', of course, I do not desire to be limited to such use. The`work which may be done by employing my invention is of an unusually clear and legible character, and wherever matter of such a sort is'desired to be printed this invention may bey employed to advantage. It will be seen that bymy invention special means are provided for". regulating or varying the throw of the feed dog, and consequently the feed of the carriage, at Will and Vindependently of the characterl keys or type actuating mechanism; that such means may be regulated, from the front of the machine and in the vicinity of the keyboard, thereby facilitating the operation which may be accomplished by depressing a finger key;`

that said means are attached to the framework of the machine and do not interfere with any of the usual mechanism of the machine; that such means may be regulated be-` fore the printing stroke is begun, thuspro Viding in advance for letter spacing suitable to the kind or size of types to be printed; that the characters of one set of types may be of substantially the full dimensions of their type blocks, the corresponding characters of the other set differing in dimensions from the first set and occupying only one corner of the faces of their't-ype blocks; and that the type blocks are, and must of necessity be, of uniform dimensions in order to coperate properlywith the center guide.

Various changes may be made in the construction as herein described without departing from the ygist of my inventionl as sety forth in the sub-joined claims.

What I claim as new and desire to secure by Letters Patent, is

l. `In a typewriting machine having letter spacing mechanism appropriate to two degrees of spacing and to sets of types of di erent widths, the combination-of a type guideprovided .with a guide opening, key

Icontrolled type carriers 'having a complete set of capital letter .types uniform in size,

adapted to one only .of said degrees of letter spacing, other key controlled' type carriers having a complete set of smaller capital letter types uniform in size, the types of the second set being different in width from the n c orre sponding-types of the first set and occopying only a part of the length of face of their type blocks, each of said smaller capital letter types being arranged in one corner of its assoclate type block, vand adapted to the other of said two degrees of spacing, thetype blocks of all the types being of uniform size so that said type blocks may properly V .engage with the guide opening 1n said type '2. -In a typewriting machine having two sets of types diering in character, the combination of a'carriage; carriage feeding lmechanism comprising a toothed wheel and coperating dogsi one of said dogs being iyotally mounte on its support; and means or regulating the extent of movement of the mechanism comprising a toothed Wheel and cooperating dogs, one of said dogs being pivotally mounted on its support; and means for rerrulating `the extent of movement of said Feed dogon its pivot, said regulating means comprising a slide bar co-active with said dogs, a pivoted key controlled rocker connected with said slide, stops for limiting the movement of said'rocker in both directions, and a spring detent for maintaining said regulating means in one or another of a plurallty of 'adjusted positions.

Signed at Bridgeport, in the county of Fairfield, and State of Connecticut, this 7th -day of May A. 1904.

CASPER D. WALLACE.

Witnesses:

BRUCE MILLS, HUGH M. ROBINSON.

a slide barl co-active with said

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