US843828A - Type-writing machine. - Google Patents

Description

PATENTED FEB 12 1907.

E. I. KUNATH. TYPE WRITING MACHINE. APPLICATION FILED APR. 25. 1904,

2 SHEETS-SHEET 1.

61 l/VVE/VTOR BY 6W WITNESSES:

ATT IUEY PATENTED FEB. 12, 1907.

E. P, KUNATH. TYPE WRITING MACHINE.

APPLIOATION FILED APR. 25. 1904.

2 SHEETS-SHEET 2.

INVENTOR 6W s m WITNESSES: l

. ATT NEY UNITED v s'rArns PATENT onrron.

EDWARD F. KUNATH, OF JERSEY CITY, NEW JERSEY, ASSIGN OR TO UNDER- WOOD TYPEWRI'IER COMPANY, OF NEW YORK, N.'Y., A CORPORATION OF NEW JERSEY.

TYPE-WRITING MACHINE.

Patented. Feb. s, 1907.

Application filed April 25, 1904. Serial No. 204,770.

To all whom it may concern;

Be it known that I, EnwARn F. KUNATH, a citizen of the United States, residing in J ersey City, in the county of Hudson and .State of New Jersey, have invented certain new centing or underscorin letters, particularly in machines in which t e ribbon is vibrated to cover and uncover the printing-point at each't'ype impresslon, as is usual in frontstrike machines. "One or several of the types are provided withaccent. or other marks, .and the keys controlling these accent-typesare first struck and then the ordi- I nary letter is written in position beneath or '29" is made whereby the accent-type key omits over the accent mark or marks. Provision to cause the usual letter-feeding movement of the paper-carriage, so that by strik ing'the accent-key first and then the ordinary type-key the letter and its. accent are caused to register properlyupon the written sheet. These accent-type keys are sometimes termed silent keys, because of-their omission to-feed the carriage, and when occasion arises two or more of these keys may be struck before writing the ordinary letter,

whereby the latter may be provided with both top and bottom accents or marks; The

striking .of the ordinary type-key of course causes the carriage to feed as usual, so that jthe letters may appear in proper sequence upon the page.

In some varieties of writing-machines the Y lever of an accent-type key or silent key may be cutaway, so that such lever may fail to actuate the f universal bar which controls the usual carriage-feeding devices and itself is actuable by any This is common in under-strike machines; but in front-strike machines, Where it is customary to connect the universal bar not only to the carria e-feeding devices, but also to the ribbon-vi rator, thefailure of a silent key to actuate the universal bar would result in thefailure of the ribbon to cover the printing-point at the'inst'ant of printing, so

that an inked impression of the accent-type upon the paper would not be produced. 1

key-lever. in the system.

One of the principal objects of my inven. tion isto overcome this difficulty, although some features of my inventionwill be found useful in both visible-writing and blindmachines. v According to my present improvements the ribbon-vibrator may be operated in the usual manner by the universal bar, and the latter may be operatedv as usual by all the type-keys, including the accent-type keys;

but the latter also control means for pre-' venting the carriage from bein fed as usual by the operation of the universa bar, whereby ltbecomes practicable by striking an accentkey before the ordinarytype-key to secure the proper relationship of the accent to the letter upon the Written sheet.

In my preferred construction a detent,

which is independent of or additional to the usual spacing-dogs, is provided for holding the carriage stationary, said detent being normally idle, but capable of being set by the operation of any accent-type key.

A further detail of the invention resides in provision for enabling any subse uentlyoperated ordinary key to'release sai detent, so that the carriage may feed as usual.

In the accompanying drawings, Figure 1 is a front sectional elevation of-a rear portion of an "Underwood writin -I nachine, showing my improvements ap Iied thereto, the section bein taken on line w w of 2. Fig. 2is a p an-of the parts seen at Fig. 1., omitting the strai ht carriage-rack. Fig. 3

is a sectional side e ovation showing the parts seen at Fig.- 1 and also a t e bar and-connections. Figs. 4 to 8 are (fibgrams-showing successive stages in a cycle of movements of the feeding devices that control the carriage in connection with the additional detent, Fig. 4 showing the normal ositions of the parts; Fig. 5, the position at t e depression ofan accent-type key, whereby the additional detent is moved into the .path of-a tooth of the escapement-wheel; Fig. 6, the position at the relief of the accent-type key from pressure, the usual dogs having returned to normal position, but .the additional detent still loo holdin thecarriage; Fig. 7, the position at.

the su sequent operation of an ordinary type-key which, by means presently to be described, causes the release of the additional detent and Fig. 8, the normal position I of all the parts at the relief of the ordinaryt e-key frompressure. I

? n the several.views like'parts are identi- 1 fied by like signswag At'Fig. 3 i's s'howh adouble type 1, providedwith accent-marks and mounted upon a t e b'a'r 2, which forms one 'of a series of 'ra ial bars that are usually mounted upon a curved fulcrum-rod 3 and. strike 'rearwardly against a' platen 4. ,The type-bar 2 is connected, by a bell-crank 5 to a key-lever 6,

whose key 7 bears an accent-mark'to ,corre spond with the 'mar'kon the type 1. The key-levers for'the'ordinary types are indicated at 8,'Fig. '2, these levers being similarly connected to their type bars, and-all of thelevers being provided with returningsprings9.

" The laten 4 is mounted upona carriage, a

part W erect-consists of a straight rack 10,

. (shown at Fig; 1 as connected bya strap'll to the usual carriage-driving spring-barrel, the

' latterbeing omitted.) Sald rack mesheswith a small'jpin on 12, whichis connected to a large escapement-wheel 13, having teeth 14.

. Withthis .escapement-wheel cooperate the 'usual detent and spacing- dogs 16 and 15, although so far as my improvements are coni cernedthe construction and operation of the 1 Intent-rack may beemployed in p i circular escapement-rack. l4. The detentdogs is not important, and a straight eseaple ace 0' t e dog 16 is 'usuallyfornied upon the tip (of a is hinged upon rocker-arms 22 and carries atand rocker 17 pivotedat 18 upon a portion 19 of t-he'framing of themachine, and the spacing- -dog is pivoted at20 upon said rocker,-

these parts being returned to normal'position after'ope'ration by. the usual spring or springs. (Not shown.) Said dog-rocker 17' is directlyengaged by a portion of the usual universal-bar frame 21, which at its rear end.

itsfo'rward end asegmental universal bar 23,: which occupies a ositionclose to the hubs of the'type-bars an is movable rearwardly by any of'the heels 24, provided upon all of the type-bars, including those wh1ch carry the accent-t es.

F rom t e' foregoing detail description it will be understood that when any'type-key is de ressedits t e-bar is'swung up to print,

hy means o the heel 24 on the ty 'e-bar the segmental universal bar is pressec rearwardly and in turn rocks rearwardly the dog rocker 17, so that its detent-dog. 16 engages 'an escapement-tooth 14, wh1le the spacingdog 15 escapes from'said tooth and'flies to' the'left in Fig. 1 in position to engage the succeeding to'oth 14 when the carriage and e's'ca ement-wheel move. Upon the relief of the ey from pressure it is returned to normal position by the spring 9, together with the type-bar, the universal her being retracted by a spring 25, Fig. 2, and the (log-.

rocker 17 also moving forwardly to normal position, whereby the detent-dog l6 escapes om the tooth 14, permitting the carriage to advance and the escapement-wheel 13 to rotate until arrested by the coaotion of the feeding-dog 15 with the succeeding tooth 14. -Ereeted upon the universal-bar frame 21 is the usual arm 26, which by means of a slot 27 engages a pin 28, that projects from one H arm of a ribbon-vibrating lever 29,- the latter being p voted at 30 upon a part 31' of the platen-shifting frame and .at itsforward end being pivoted to a vertical ribbon-carrying slide '32, as usual. Whenever the universalbar frame is forced rearwardly by either an f nected to the accent-type. 7 This movement of the detent 33 is efiected simultaneouslywiththe usual movement of the dog-rocker 17, whereby 'the usual dogs 15. 16 are rendered temporarily ineffectual to feed: the carrlage. The invention may becamed out in many forms but that 11616111 illustrated comprises a bar or arm 34, uponthe left-hand end of which in Fig. 1 said detent is formed, I

said bar 34 lying horizontally 'andextending transversely of the key-lever system to the right-hand side of the machine and being vpivota-lly supported or hinged bymeans of a pair of arms 35 36, fixed upon and pendent from a horizontal transverseroek-shaft v37. 1

The detent 33 hencem oves into and out of engagement with the escapement-teetl'rupon" the axis 37. -Its movements are effected by" means of pendent links 38, detachably pivoted at their lower ends to the accent-key levers 6 and at their upper ends passing through perforations in the bar 34, above which the links are sion-springs 39, con threaded upon the tips ofthe-links, the nuts adn'iitting of adjustment of the. tension of the springs. The downward ppllon either link caused by-the keyl ever 6 during the printing stroke of the typeebar 2 operates through the.

spring 39 to press-the bar 34 downwardly, whilethe other link '38 re"na-1ns-idle,-ti:is moveinent'of' the bar carryingtue dctent 33 grovided with compresned by locked Imus- 40,

from normal ineffective position, Fig. 4, into 1 efl'ectwe position, Fig. 5.that 1s, into the path of one of the BSGfiPGTnT-GIIt-ttll 14.

Upon the relief of the acc'ent-ty e key from pressure the type-bar and ke'yever return to normal position, together with the link 38;

but the'detent remains ineffective Dosition, being there held by the mere pressure position. By the subsequentmovement of any of the ordinary type-keys, however, the detent 33 is released, this, being effected through a yielding cam carried by the universal-bar'frame 21' and illustrated in the form of a spring-wire 4'1,- s-ecured by a screw 42 at.- its rear end and at its forward end bearing upon the'frame at 43. This wire 41 is shaped suitably to engage'the under forward edge of the bar 34 and cam the same upwardly-dun ing'the rearward move ment ofthe frame 21,

' whereby the detent 33 is swung out of engagement with the jescapement-wheel 13, as. at. "Fig.7, this'movement being assisted by a lightly-tensioned spring 44, Fig. 1, coiled I upon-one end of the rock-shaft 37. Upon relief of said ordinary typekey from pressure the dog-ro'cker'l? returns to normal position, as at Fig-8, whereby a feeding movement of the carriage is effected in the manner already explained. Thus during the actuation of a of the types, including the accent-types, the

universa bar is o erated and the ribbon vibrated thereby, .w ile the feeding of the car-' riage at the operation of the-accent-types is operable by the universal bar 23 or by-any of i prevented. J It will be observedthat the detent 33 is inthe ordinarytypie-keys-that is, not movable to effective position thereby, although the yielding device 41-, carried by the universalbar frame, effects the release of the detent 33.

This releasing'device 41 is of course operated by all of the keys, including the accent-keys,

'. but is ineffective during the operation of the latter, because of the control exercised'by the springs 39 u on .the detent-carrying-bar-34,

said springs eing sufliciently strongto hold down said bar'during thereturn movements of the key-levers 6 until thedevice 41 moves forward out of engagement with the 'bar'34I.

Said detent 33,it will also be, seen, is directly operable by the key-levers 6 ,while the dogs 15 16 are operated throughtheinterventionof the universal bar 23. .;:'lhe'ca1iriage= detent 33 is normally idle during the o erationlof-the ordinary type-keys, the latter eing incapable of setting said detent, while the accent-keys are incapable of releasing thjsame. v

Having thus described my invention, I

r 1. In a. type-writing machine, thehcombi: nation with types,type-keys, and a carriage,

- of a universal bar operableby the type-keys,

a ribbon-vibrator operable by said universal bar, an escapement rack' for said carriage, carriage-feeding devices operable by said universal bar and cooperating with said rack, and a ,detent normally out of engagementwith said rack and inoperable by said universal bar but directly operable byone of said type-keys and caused thereby to engage said rack independently of said carriage-feedingdevices, to prevent a feeding movement (if the 7 5 carriage.

2. 1n 2. ty e-writing machine, the combination with types, type-keys, and a carriage, of carriage-feeding mechanism controlled by the type-keys, a st0p-detent movable to set s positron b certain of said keys andnon-returnable t erewith, to prevent feeding movement ofthe carriage, a ribbon-vibrator movable to the printin -pointby all of the keys,

b means being provi ed for causing the ribbon- 8 5 vibrator to return to normal position -together with all of the keys, and means for en- I abling any of the keys except the stop-detent 1 keys to release thecarriage from the control of said detent after the return of the detent.- operating key to normal position. I

3. In a type-writing.machine, the,combi;'

"nation with types,ftypekeys and a carriage, of a ribbon-vibrator, means for enabling each of said keys to move the vibrator to .the printing-point, means being provided 'for causing the vibrator to return to horr'nalposition together with each of said typeekeys, anda carriage detentmovableto set position by certain of said type-keys and non-.100 returnable therewith, but releasable'by the remainingtype-keys after the return of thedetent-operatingkey to normal position;

4. In a type-writing machine, the combi: nation with types, type-keys, and a carriage, of a universal bar operable by the type-keys,

means being provided for causing the univer-. sal bar to returnto normalposition together with each of said keys, a .ribbonvibra'tor operable bysaidu'niversal'baryan 'esca ementi to" rack for said carriage, can'iage fee ing. devices operable by said universal bar and 00- operating with said rack, a carriage-detent, certain of-the-i-type-keys having means for I settingthe detent to effective position but ineffective; forfreturning the detent -:andmeans for enabling asucceedingoperationof the universal-bar to release'said detent. 5. In atype-w'ritingj machine, the combination with types, type-keysgand a carriage, I 20 ofa universal'bar'operable by the type-keys,

' ,means being provided for causing the universal bar to return to-normal position together with each of said keys, a ribbon-vibrator operable by said universal bar, key-operated 12 5 ca'rriage-feeding devices, a carriage-detent,

certain of thetype-keys having means inde--' pendent of the universal bar for setting the iq effective position only leteIit to eii'ective position but ineffective for returningthe detent, and means-for enabling" the universalbar to release said detent after the return to normal position of' the key I 5" which set the detent. v 6. '.-In a type-Writing machine, thejcombination With-types, type-keys, and a carriage,

of a universal bar' operable by all'the type keys, means being prdvided'-fdr fcausin'gthe g' roiuniversal barto return 'tonormalposition together With eac h'of said keys, a carriage-.

I feeding mechanism controlled by said. uni,- versal bar, acan'iage-detent, means operated by-certain of said keys independently of thef [5 universal barf-or setting said detent to-and holding it in effective position afterv their re?- turn to normal po sition"s, 'rneans for enabling the universal bar to release said detent so;

that the'latter may return to normal posio jtion, and mea'ns operated'lby said .det'ent set ting. keys for rendering said releasing means ineffective onlydu r'ing'th'eir -depression'.-

,7, Ina type-writing machine, the'coi nbi nation with types, type keyS -and a carriage, 5 of. a universal bar-operable byall'theitypmfkeys, means. being provided for causing the universal bar to return to normal positien togetherith each of said keys', a carriage-,1

feeding, mechanism controlled said-funi- S versafll bar, a'carriage detent,-n1eans operated by certain of said keysindependently'of'the Q universal bar for setting said detent toj-and holding it in eflectiv'e position after their re;

turn to normal positions, a yielding device 45 means being provided for causing the univerf-sal bartoreturn to normal'positien"together with each said, keys, a carriage-(lstent,v means forenabling-certain of said type-keys to set said detent to effective position and to said detent, and a-yieldingdeviee for en abliiig said universal bar to release said detent at a subsequent operation of the-univer- 'sal bar by one of the remaining keys; I 55 9.,In a type writing machine, the con1bi nation-with type s, type-keys, and a power driven carriage, of a normally ineffective de tent for the carria e, m eans for enabling certain of said type eye to set said detent'to 66 effective position and to elevate and lower the ribbon and to return to normal position independentlyof said detent', and means for- .enabling' a subsequent stroke of any of the other type-keys to release said detent after the depression es, -typekeys,and a. carriage,v I of a'universal ar operable by the type-keys,

- '5 "return tonormal position independe'ntly of I keyroperated tentJ sas es return to normal position of the detentsettingkey.

' 10. The combination types, ineluding an accent-type, type keys, a carr age ,Jan es:

" capement rac'k; and the usual carriagefeedingdevieesun'de'r the contrel ofithe keys, of a pivoted detent foreng'aging-thef rack, a yieldingi eon-nection from said; detenttothe aecent type keylyvhereby the latter may set the. detent" to efi'ectiveaposition, and a yielding rnember for releasing said de 11.1. in a type-ivritin machine, the am nation with types, inc uding a plural-ity of accent-ty Y es, a carriage, an eseapemen't-rack,

andtypfeeys, pof a universal bar operableby' the-keys, a ribbon-vibrator operable by'the universal bar, carriage feeding devices controlled by the universal "b an, an independent deten-t to en'gagesaid rack, means for e Tabling anyof the accent-type keys toiset said detent} to effective position, and'means oper a able by the remainingtype keys for releasing saiddetentl 2." ;In a typewriting'inaohine," the combi- 'na'tiontypes, including-a plurality of ac:

. cent-types; a; carnage an escapement rack,

andf-typc keys', of the usual carriage-feeding devices controlledby thejkeysf, 'detent in.-"

operableby the ordinary .type-keys,z yielding means for enabling 'anybf "the; a'ccent type' keys to set said det'ent to engage said rack, anda yielding device controlled by the oremery keys for releasing said detent.

'1'3. In a typ'e-yvri'tingmachine, thecombination with types, including'a plurality of acoent-types a carriage, an esoapement-r'a'ck,

and typ'eeke'ys, of a universal bar operable 'l by the type-keys, a ribbon-vibrator operable,

by the universal bar, the usual carriage-feedingdevices under the control oftheuniversal ban-an independent detent for the rack, an

armor fbar forcau singsaid dete'nt to engagethe raclg-anda -setflof yielding devices controlled by the-accenttype keystorenabling either of the lattejrto actuate said arm or bar; means-being 'also operable by-saidu'ni-T ver'sal bar andincluding a yielding member, for "releasing said detent'a;

h 14.". In a type-Writing machine, the coinbination with types, in'cludin a plurality of ac- 'cent-types,a seriesot key-levers for'operatingsaidjty es, anda carriage, of a universal bar operab e by the key-levers, aribboh-vibrat'or operable by. the universal bar, an es- 12C capement-rack, the usual carriag-feedin devices under the control of the universe" bar, an independent tooth for engaglng'the' Zrack, a pivoted 'frame'whereon said tooth is v mounted, said frame including a bar or arm extendingtransverselyofthe series of keylevers, connections e em the aeioent-keylevers to said bar or'arm, and means/Tor. enabling the'u'niversal bar to'relea'se said detent. 1

15. In a type-Writing machine, the combiforsettin 'said 'detent, and a yielding device nation with types, type-operating key-levers, upon sai universal-bar frame for engaging a carriage, and a universal-barh'ame 0 'ersaiddetent to release the sa,m.. able by the keys, Of letter-spacing dGVIGGSY- V EDWARDF. KUNATH; 5 operable by said universal-bar frame, a, piv- Witnesses:-

ot ed carria 'e-detent, a, link'and sprin con- S; T: SMITH, nccting sai detent to one of said keyevers M. S.-

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