US1026619A - Book type-writer. - Google Patents

Description

P. WISSNBR. BOOK TYPE WRITER.

APPLICATION FILED DECJ. 1910.

LOS-36,6 19.` Patented May 14, 1912..A

5 SHEETSHEET l.

LWISSNBR. BOOK TYPE WRITER.

APPLICATION FILED DBO- 5. 1910,..

Patented May 14, 1912.

5 SHEETS-SHEET 2.

(7% van i022' R WISSNBR. BOOK TYPE WRITER.

' APPLICATION FILED DEO. 5. 1910.

' Patented May 14, 1912.

5 SHEETS-SHEETS.

1. WISSNR. BOOKTYPE WRITER. APPLICATION I'ILED'DEO. 5. 1910.

Patented May 14, 1912.

5 SHEETS-SHEBT 4.

E. WissNER.

BOOK 'TYPE WRITER.

lMPLIcneufIoN FILED pm. 5, 1910.

1,026,619. Patented May14,1912.

`s SHEETS-SHEET 5.

-nism, the former FRANZ WISSNER, OF MAINZ, GERMANY.

7 BooK TYPE-WRITER.

I Specification of Letters Patent. Application tiled 'December 5, 1910.

'Patented May 14, MM2. Serial No. 595,739.

To all whom zt may concern Be it known that I, FRANZ VVIssNERa subject of the Emperor of Germany, residing at Mainz, Germany, have invented a certain Improved Book Type-Writer, of which the following is a specification.

The presentinvention relates to a typewriting machine ot' 'the kind adapted 'or writ-ing in books or on paper sheets arranged on a stationary surface, and. its object is to provide a machine which is easily operated and whichV may be worked in any convenient place whether the supporting surface be level or inclined. For this purpose a casing containing the type levers and the'ink-ribbon mechanism is arranged laterally of a casing containing the key-mechacasing being' adjustably carried by the latter and fed along the lines by the depression of the keys. The keys are connected to the type-levers by means of cords which are guided over sheaves threaded on fast and movable shafts, said shafts being connected by movable links adapted to maintain the tension on the cor( s. machine is connected to its support by links on which it can be adjusted to the level of the writing surface. This adjustment is effected by means of an easily operated Worm working 1n a worm-wheel quadrant con? nected to one ot' the llnks. Means "are pro vided for back spacing and also for an automat-ic return of the type carrier to starting position as soon as a line is nished.

Since it is .the type carrier alone that moves over the writing surface. during the operation, only little exertion is required in the working of t-he machine.

The invention is illustrated by way of example in the accompanying drawings, F igure 1 representing a right side view ot' the machine, partly in section, Fig. a view of the device for adjusting the machine to the level of the writing surface, F ig. 3, a rear view of the right side of the machine, Fig. 4, a front View of the same side, Fig. a plan of the whole machine, the cover-plate being removed, Fig. (S, a View of the letter spacing mechanism, Fig. T, a front view, partly in section, of the type carrier, Fig. 8, a .left side view,.partly in section, oi the lower part' of the machine, Fig. 9, an interior view vof part of the rear wall bt thc main casing, Fig. 10, a view of the ink-ribbon mechanism, and Fig. l1, a front view ot' the right, lower corner ot' the machine.

The

,i released from the The remaining' figures illustrate a modiied construction of the-` machine, Fig. l2 showing` part of the left side, Fig. 13, a right side view, Fig. 14, a side view of the carriage for the type carrier, Fig. 15, a plan of the machine, the cover being removed, Fig. 16, ay view Aof the letter-slmcing mechanism, and Fig. 17, a View of the lett, lower rear corner ol the machine.

In the first construction the main casing l ot' the machine is mounted on a carriage i), running on wheels Links connect the wheel axles at both sides of the carriage with the casing l, said links being rotatable about the axles as well as about the pivots connecting them to the casing. el are either provided with tires of non-skidding material or fitted with teeth. In the latter case they must be supported on rackbars. By raising the casing l on the links 3, which have normally an oblique position, the machine can be adjusted to the level ot' the writing surface. For the f fonveniencc ot such adjustment, one ot the links is rigidly connected to a wm-m-wheel quadrant in which meshes a worm ti operated by a hand wheel. The casing l and. all the parts connected thereto can thus bc raised, as shown in Fig. by turning the worm G which also retains the machine in adjusted position. For the purpose oit' equalizing the load on the ca1riage\vl1enthe casing is raised, the front part ol the carriage is weighted.

Line-spacing is ellected by moving the carriage on thc wheels el. a lever 7 is provided which loose on the pivot S by means oi which thc right-hand rear link 3 conmctcd to Athe casing l. A toothed wheel i) is also loose on the same pivot and engaged by a spring-actuated pawl l0 connected to the lever T. A detent pawl ll, pivoted to thtl casing l, also works in the teeth ot the wheel 9 which meshes with a wheel 1L" rotatably mounted on the link 3. The latter wheel meshes with a y wheel 13 connectcd'to the wheel 4 which can thus be rotated, for advancing the machine, by a turning ot the lever 7 in the direction ot thcarrow. A clamp screw 14A-,adjustable in a curved slot in the casing l, serves as an abutment for the lever 7 and determines the space between thc lines.

- lVhen the carriage is to be returned to its initial position, the pawls l0 and ll must. be wheel l). .This is eft'ected The wheels l by m `ans of a dl'luble-arllled spl'illgpressed level' 15 pivoied to ille outside oi' ille easing 1 and il'iied with a key-button to ii'aciliiaie its depression. l`o prevent a spontaneous advance o 'i ille carriage. should ille. nlaeilille be placed on all inclined surl'ace, a springe actuated lspool lo is provided which is mounted ill a t'ork at ille rear of' the car`- riage. By means ol a cord. rolled on said spool alld on the rear axle oi ille carrlae'e7 a balance is obtained. 'lhe spring ill the spool 1li ma)Y be made strong' enough to return ille carriage automatically as soon as ille lever 15 is depressed.

The types witll illeir levers are carried by a cylindrical casing 1S which is secured io one end oi' a l'aiellei l'acll' 1T alld held by means olu the latter ill ille casing' 1 so asio allow oi adjustment ill ille direction oi thev lines oi' writing'. The raclc is eolllposed oi illree connected plaies. ille ratchets being formed on ille edge ot` ille center plate. A sleeve 1S) on ille casing' 1S serves io eonneei ihe latter to ille elld oi ille rack where ii is secured by lllealls of a wing nuty Q0. 'llle iype levers Q1 are iiit'ed on ille inner wall oi' the casing 1S. as shown ill Fig. 7, ille levers being adapted. when actuated. to deposit' ille types ai :l point' int'ersecied hv ille central axis of ille cylinder. The types are ex,- ellangeahly fitted in sleeves on ille levers and secured thereto by means oi clamp springs.

. Each type is operated hv ille depression of a key-'button 2Q exellang'eably mounted on a lever 2?). A rod 2l connects ille latter lever to one end ol? a donble-arnled lever itt which is arranged in ille upper pari of ille casing 1 and iensiolled by a spring 2.3. .lo the other end of ille lever Q6 a cord 27 is fastened which is guided over a sheave 2S mounted on a bar carried obliquely across the inner rear wall of ille casing' l (Fig. il). From ille slleave 28 ille cord is passed in succession over ille sheaves 9.9, 30, S1, 35S and 34 to its type lever which is operated wllell illeI cord is pulled owing io ille depression of ille key. All ille sheaves Si al'e suitably arranged on ille outside ci ille easing' 18. The sheaves Q51, 30. 31 alld m on vertical shafts oi which ille one for ille sheaves Qt) is connected to ille casing 1, and those ior ille sheaves 31 and 33 io the casing' 18. The shait' ier ille sheaves il() is connected to ille sllalis 29 and 31 by means oi links 38 which. by altering ille position of ille sheaves 30. lnailliain a lll'li'i'ornl tension on the cords Q7 during ille movements ot ille type-lever carrier. l

All ille key-levers Q3 a shaft 35; ille levers 26 are roiaiable about a Shaft 36. The springs 25 are also held ill common by a spindle 37.y are guided ill slots in ille lroni Wall oi ille easing 1.

Rotaiably arranged about ille shaft 35 is a re l'ot aiable about' ,lo .lre threaded The key-levers a i'l'alllc ltl ille 'troni nlenlber ol' wllicll bears against the lower edges oi' the levers 2li. 'lhc side lnelllhel's7 which hold ille levers '235 helm-ell illenl` are prolonged beyolld i-he i'lllerunl. tl-le prolongations having all ohli'lpll` plvlsitioniand being provided witll pins' h v nleans oli which they engage uprightv against ille opposition oi the springs l() wllicll are inclined forward by ille operatioll. 'l`he Vlorward inclination oi ille springs causes ille bar 111 io engage ille ends oi the remaining' levers 23 so as to`lieep these levers locll'ed llniil the depressed lever is released. l'llis arrangelllent prevents ille striking;` oi olle key op top oi' another and a eonselpleni dalllae'e ot ille machine.

'l`lle leit side nlelllller oi" ille 'lil-aule 2li) operates the lettel'spacillg' nleehlulisnl. 'l`o tllat end a bell-eranll' level' il, pivoted to a plate 12. is titled with a linger by lllealls ol' wllicll it abuis against ille said lllelllbcr o'if the i'l'allle. A. pawl Lit, pivotell to a .pill on ille level' it, `is ill constant. engag'elllenty wit-h ille rack 17. When ille franle is depressed, ille lever -ftl l'ollows its lllovelllellt thereby causing the pawl 'tt'l to he retracted by one tootll. .\t' the release of the lirallle the latter is restored by a spring' liT. aided by ille springs l0. to itsI llorlllal position, all ad- .va'llce ot' ille raclc alld ille type carrier by one tooth heine' thereby eil'ceied. A detieni pa wl 1121, also pivoied to ille plaie 4Q. retainsl ille raclcwhen ille pawl --ttllis retracted.

For spacingI ille words a spacer bar fits is provided which is connected i0 a iral'ne 4S). 'l`llis 'i'ralllc oscillaies about the shati. 215 and engages ille l'rallle I-lt) h v its arllls 50 ill the saule nlallller as ille ll'ey-levcrs 93,

,\i both sides oi5 ille casing l, the rack li' is provided with stopsl 52 which al'e adjustable b v means oi wing-screws 5l 'iol' determining' ille extent oi the iypewritten linel ill both directions. In conjunction with said steps, llleans are provided lor an alltolllaiie return oi' the type carrier te stal-tine` posi-- iioll as soon as a lille is completed. For this 'to serve as abutnleni tor ille stops fr). 'lillA lerringr to Fig'. 8. wllicll shows ille leii side oi: ille easing' 1, ii will be seell that ille bar .3?) is ill loose engagement. with a lever 5l. ille laiier being' hinged to a plaie which itseliE is rotatable about a pill ell-ille easillg'l. This lever has a slot .G5 t'hrolle'h which the bar is passed alld which allows ille lever to move vertically, independently oi' th(` bar. y

Horizontal movements of the bar are how- .mally rests in the tl lowered: owing tothe the latter is depressed the lever 57 is p sesame ever, transmitted to the lever which` engages a notch in; the ormer. At the tre-e end of the lever anV inwardly projecting nger z5t3-is formed? (Fig. '6) which works in: a slot in the wall' of the casing l. W hen the stop 52v .strikes against the bar 53, at the finish ot a. line, said' bar is slid to the right taking with it the lever 5ft. rBhe finger 5,6, which norickness ci the casing wall, is thereby pressed against the trame 39 over which it snaps soon the `trame is depression ol a key or At the subsequent up.- the fra-nio, after the reof the key, the lever 5a is taken along it and so also is a lever 57 (Fig. 8) iszpivoted to the casing- 1 and adapted engaged; by the .thiger 56. The end of ed through a slot in the Wall into the .interior of the casing where it terminates in a shackle 58 disposed between the lever 4% and the rack 17. Then this shackle is raised by the finger 56,4 it strikes against pins .on the pawls 43 and 46 and puts the latter out of engagement with the rack. A. spring-tensionedspool 59, connected to theraick by means of a cord (Figs. 1 and 3), thereupon returns the type carrier to its initial position. Iln this osition of the carrier the bar 53 is actuate by the stop 52 at of the space bar ,ll- 8. Ward movement of lease with the right side of the machine, the lever 54 being thereby restored to its normal position,

the lever 57 released, and to rengage the rack. A direct depression of the lever 57, which is extended to the keyboard and fitted with a key-button for the purpose, e'ects a. return of the type carrier from any of its intermediate positions.

The tension of the spool 59 must be adapted to be overcome by the pressure of the spring 47 on the frame 39.

Since it is convenient to be able to retract the type carrier step-wisc by one tooth only, an arrangement for such back-spacing is provided as follows: A double-armed detent lever 61, pivoted to the outside oit the casing 1, has one end adapted to be pnt into engagement with the ratchets of the rack 17; it is, however, normally prevented trom such cnthe pawls set free i gagement by a spring. The other end oi the lever is disposed so as to be actuated by the end ot a double-armed lever 6&2 when by me: ns ot a keylutton 63. The shank of the key-button is slidably tilted in the lever (S2 and encircled by a helical spring. When the key 63 depressed, the rear end of thedetent lever 6 descends onto the back oi one of the teeth or the rack 17. Vvhile the detent retained there by the helical spring, the shank of the key-button -descends onto the lever 5T and depresses the latter with the cti'crt that the pawls l?, and lf3 are disengaged trom the rack by [he shacklf The rack thereuilion moves, under the influence ol thc spool 59,

gbut isl checked by the detent 61 which engages the iirst oncoming tooth. Vhen the zkey is released, the pa-wls are first restored is disengaged from the rack which now assumes a position one tooth to the lett ot the one it occupied before the depression of the lkey. This process may, of course, .be repeated any number of times.I

in order to facilitate the movements of 'the rack 17, it is mounted between rollers 64 which ary adiustably fitted on brackets at both sid of the easing 1.

For the purpose of keeping the ink-ribbon 65 in motion, the rearward prolongation ot the right side member oii the frame 39 is the saine manner as the cords 27, over sheaves 28, 29, 30, and 31 to the type carrier `where sheaves 67 and 68 conduct it to the ribbon mechanism. The latter is composed g of two ribbon spools 70 mountedv in brackets 71- connected to the casing 18. On the shaft of each spool a lever 69- is loosely arranged `which is controlledby a spring 72.- The levers are fitted with pivoted .pawls 7 3 which are adapted to work in 'the teeth of ratchet wheels connected to the spools for rotating the latter in opposite directions. A oord 74 connects the two levers 69 so as tov make them work in unison. One of the levers is also intended to take 66 which thas actuates movements of the frame The spring 72 at the side ot the cord 66 is adapted to be overcome by the tension of the spring at the opposite side. The pawls 73 are alternately put in engagement with the spools so as to roll the ribbon from one spool lo the other.

It is evident that, While retaining the main features of the above-described typewriting machine, the particular construetion and combination ot' parts may be considerably modified. For instance, the rack 17 may be firmly .secured to the casing 1, and the type carrier movably mounted thereon by means ot a carriage'. Moreover, the linkages may be directed to the other side ot' the rack, and the type carrier may be adapted to travel in' a vertical direction, should it be desired to write on a vertical surface. A modification of particular ad vantage would be to make the casingl l vertically adjustable on a stationary support and to make the rack with the type carrier 'adjustable in a carriage which itself is ad instable. for line-spacing, on a trame connected to the stationary casing. In this case the right side of a book may he pushed under said frame while the left side of the same is being written upon. Such an arrangement is illustrated in Figs. 15 to 17 in which the same reference numerals have hren retained for parts which are identical with those ot-lhe former construction. A

to engaging position and thenthe detent 61 connected to a cord 66 which is guided, in"

one end of the' cord the mechanism by the rack, connections between the keys of the machine and the rack bar for advancing the latter in opposition to the spool a't'ter each depression of a key, a key operated lever for releasing the rack bar and allowing it to be returned by the spool to its initial position, means for releasingl the rack bar automatically at the end of the lires, and means for moving the rack bar with the carriage from line to line. v

5. .ln a book typewriter', the combination n'ith a key board of a rearwardly extending tf1-aine connected thereto, a carriage adapted to travel along said iframe. a rack oar mounteil in said carriage so as to allon' of longitudinal adjustment, a type carrier held by said rack bar at one .side ot and an'ay from the frame, a spring tensioned spool on the carriage acting' on the rack bar by means of a cord and tending to hold it in its initial position, a detenti paivl engaging the rack, a bell-crank lever adapted to advance the rack bar by ineans of a pawl, a strip mounted in the frame so as to be continually in engage` ment with the bell-crank lever, the strip being rotatable about eccentrlcallf' disposed journals, connections between the keys ot the machine and the strip for actuating the lat. ter and advancing the rack bar in opposition to the spool after each depression ot' a key, a key operated lever for releasing the rack bar and alloivin'g it to be returned by the spool to its initial position, means for releasing the rack bar automatically at the vend of the lines, and means for moving the rack with the carriage from line to line.

6. In a book typewriter, the combination with a key board of a rearwardly extending' frame connected thereto, a carriage adapted to' travel along said frame. a rack bar mounted in the carriage so as to alloiv ot longitudinal adjustment, a type carrier held by said rack. bar at one side ot and away 'from the trame, a spring' tensioned spool acting` on tbe rack bar by means 'of a cord and tendingV to hold it'. in its starting position, a detent pan'l engaging' the rack. a pavvl for advancing' the bai' in opposition to the spool, means tor operating' the ad vancini;` pawl, a shznzklt` arranged underneath said pawls`r a key operated lever eonnected to said shackle, so that its depression etl'ects a disengagement' ot the pa wls 'tro-ni the rael-i', adjustable stops on the rack let'ern'iin'ing' the length ot the type-written lines, means operated bythe stops tor pntt'ing the releasing shackle into temporary engagement with the advancing mechanism so as to release the rack bar and allow it to return to its starting position, andvmeans for moving the carriage for line spacing.

7. .ln a book typewriter, the combination with a rack bar holding the type carrier and being mounted in a carriage so as to allow of longitudinal adjustment, of a spring-tensioned spool acting on the rack by means of a cord and tendina' to hold it in its starting position, a detent paivl engaging the rack bar, a paWl for advancing the same, connections between the key lev'ers and the advancing pawl for operating;l the latter, a shackle arranged underneath said paivls, a key operated release lever connected to said shackle so that its depression effects a diss' engagement of the pavvls from the rack, a detent paivl normally ont ot engagement with the rack, a back spacing lever arranged above the release lever, connections between the back spacing' lever and the lastmen tioned detent paWl ctn/using the latter to descend onto the back of a tooth When the lever is depressed, a key button sliding," With its stem in the back spacing,` lever, and a helical springT encircling the stem allowing the lat.- ter, when depressed, to descend onto and depress the releasing lever for releasing the rack, the pawls being arranged so that the.

operation of the same by the back spacing key effects a return of the rack bar by one tooth.

8. ln a book typewriter, the combination with a key board ot a rearwardly extending traine connected thereto, a carriage adapted to travel along said frame, a rack bar slidably arranged in said carriage, a type carrier held by said rack bar at onevside ot and away from the frame, means tor feeding,r the rack bar for letter spacing, spring tensioncd spools arranged at the rear of the trame, cord connections between the spools and the carriage tending' to hold the latter ini-its rearmost position, spools arranged on thekey board easing, cords connectingr 'the latter spools with the carriage, a gearing operating' the latter spools, a ratchet wheel connected to said `Lgearing, a detent'- paivl retaining` the carriage by means ot the ratchet fwheel, a paWl operated by a hand lever t'or rotating' the iatchet wheel and advancing" the carriage, and ar key operated lever tor releasing' the pavvls and allowing the carriage to return to its initial position.

Nit nesscs: v,

.lnAN GnoNn, (laan GRUND.

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