US1136223A - Line-adjuster for type-writer platens. - Google Patents

Description

J. M1 FRAZ. UNE DUSTER FOR TYPE-WRITER PLATENS. WPHC/more mm FEB. 18. 1914.

ff ff 20 ULL ' Patented Apr., 20, 3.915.

This .invention relates to typewriting, adding or analogous `machines includin a circumferntially movablel or adjusta le roller or platen. Among the objects Aof thein'vention isvto provide an attachment adapted to'be added ,to any' usual or conventional forngrV ofv typewriting machine to which the attachment is applicable forthe purpose of adjusting the platen wo"r., roller to any desired extentless thanfthefullspace adjustment. Morespecifically stated, I provide an attachrnent for the end of the platen shaft i providing, in connection with the lusual ratchetwheeh a, special finger wheel having connection 'with the shaft independent of the vusual' 'ngerf wheel whereby the platen maybe rotated to any extent independently of-theusual means for lrotating it and without` .interfering infany manner. with the usualstep-by-step line adjustment. The foregoing 'and other objectsofthe invention 'will hereinafter be'more fully described claimed" and" illustrated in the drawings forming a partv ofulthisspe'cification in which lile characters of` reference indicate corresponding. parts in all the views, a nd in WhichpT l ":Figure 1 is an elevationvof'one end of' a platen showing Lmy inventionapplied there- 40 to, parts,being'ixrelevationl and other `parts lin section; Fig. 2 is a Similar; view but with the Y new i attachment lsubstantially'A inl central flongifudinase eqn.; and rigs; and 5 are vertical-tl-Ilsfle sections on corresponding linesof'Fig. L c

, The severalpart s` of thejdevi'cemaybe `ljlad'eofniny `suitable"materials; and, the relative sizes v'and lproportions,' as `'well as the Vgeneral design of the mechanismg may 50 :be variedtofa considerable.; eXtelg-)Tthfut departing@fromV the spi`1it o`f t`he invention 4hil,Ginafte'ip"more fully'set forthv and specililferrg QtO "the rawll'lg frA 55 speciic'descifiption ofnthelinvention' I JHLINEQADJUSTER FoRTYVVPE-WRITER-PLATENS, 5;

the platenidirectly by handv through the castained by rotatingvthe .ratchet wheel, pro- I0 all w'hom z'fmay/ concern.: l ythereto a` Shaft, ll J'Qiihldin a bearing 1'2 v Be knownthat I,` FRAAZ,'a of ithefrar'nefll j citizen of. the `United States, and a resident A' ratchet or" l asterwheelllfis orinay be `the cityof New* Yo rk,lborough,of Mansubstantially vsimilar ,to lfthe" "co'rresjgionding 60 5 li `'tfm'in the countyand Stateof-Wew wheels now generally employedj typewriti' 4 7 have invented a new and `Improved iifig2 adding 'oranalogousniachinesfor/the l 4Line-djuster A*for Typewriter-Platens, of purpose 'of` lrotating the pl'at'enfstep by vstep wbiclrthe `following is a full, clear, and exand holding the 'same steadv while the writactdescription. ing is being performed. This Wheel "14; a5

however,V is Vj'ournalecl 'loosely upon' the Shaft 11 and is secured 'to a special' 'formfof finger wheel casing-'15'which, through certainpeculiar connecting' means, 'serves to 'rotate lthe platen in' either" direction in afinannercorree 'm Asponding to the usual practice. lVithin the casin l'5` is a l'loatinggbr otatable frame or spider llhavifg afl-'rub se-z cured as by means of a set screw 17ito1the lendof thc shaft 11.' Said sp'ider'servesto support in various bearings Jay plurality of gear devices having" interlocking and' oper'- ating connection with the aforesaid ratchet vwheel 14- whereby thefunction ofrota'ting 80. ing l15 may be accomplished.;V Atil?:l'fshowv aworm journaledin bearingslS in Qsaid Spider, and saialworm isin constant` m,e"s`h i" with a worm wheel 19 vsecuredjfto'theratchet v wheel '14. A positive rotation'of the casing $5* lf'through the. ratchet Wheel and Worm wheel connections with the spider'will-cause a corresponding rotation ofthe platen due f tothewellflrnown interlocking featurefbe tw'een'fva single'pitch Worin andfi l i wheel'. j il 4 For the purposel ofdelicate adjustment of the platen so as to bring the"paper-into finer line adjustments than can readily beob` videV 'means whereby the spider nay be '-ro'- tate'd independently of thef'ra'tcliet wheel and its finger casing 15, and since theusual reta ining means' for the ratchet wheel 'rel mains' functional to hold' tlieratche't wheel and lthe worm 'wheell station'aryf 'the lspider maybe casedfto Vcreep orf"rotate slowly around' the axis ofthe-ratchet"wlieel'and cause" 'through 'the s'et screw -1.f *a* corresponding slow rotation of theifplatenso as to effect the desired delicate `adjustment of the paper. As a `suitable*iandfj:infective means for rotatingv the spider independently of 'the yEnger `wheel 15, v'Il provide any au'ril-t gerw'heel -o'r knob 20 infaxial aline- -Ir'enttwithihe othery vrrge'r wheel and;A 5ecuredf p a short'sh f21beyojld theifnd 'of and in axial. alinementl with the shaft 11. The short shaft 21 is journaled in the outer end of the casing 15 and carries on its inner end a gear whee1p22 meshing with a pinion 23 secured tol a countershaft 24 journaled intheoute'r. head 16 of the. spider. countershaft 24 and its pinion 28, therefore,

' float with the spider aroundl the axis of the shaft 11 during the rotation-.of the knob 20.

.At-25 I show a shaft journaled in bearings 26 on the opposite, or inner side ofthe head'l of the spiderffromjhe worm 17. Said wormand shaft 25' carry pinions 28 meshing. with `each other whereby the'\worm may driven from the shaft 25 and by means of. bevel: gears 29 from the countershaft 24;` Two- jheads 16 and 16 of the spidenai'e 'maintainediin proper spaced relation-by meansofstay rods 30..

'I hef arrangement o f gearing between the knob 20.and the worin wheel is such thata rotation of the knob 20 independently of the ratchet Wheel 14 will cause a rotation ofthejplaten in .precisely the same direction as if'the main finger wheel 15 were op= erated but at a slower speed.

The invention herein "disclosed is of Aa simple',..= compact and .comparatively cheap natnreland. -ma'y readily be 'applied but with slight -mo'dilicationto any known form of typ'ewriting' machine or othermachine havingan' adlustable roller. The ,gearingbetweeng-the-` auxiliaryl knob 20' -and -the ratchet .wheel14"provides, as willffbe noted from the. deseriptionlabove, a4 ver'y delicate linejadjustmenft', and isv obviousthat by suitably graduating theparts 15 'and A20, as shownmatgland 20a,jrre s ectively', Fig. 1, theloperato'r 'mayjhavede control; "of-"the adjustment. s .The graduations,.lrn'aybe variously arranged on these main and auxiliary wheels in accordancev withthe character' vofthe gearing, so as to effect various possibilities of control. v

` Having thuis described my invention, I claim 4as new and-desire to Secure by Letters Patent 1. vThe'cornlivin'a'tion with'a platen and its shaft journal'edxin a stationary bar, of aratchet wheel journaled on the platen shaft,

a `fingerwheel"casing connected to the' ratchet wheel for .simultaneous rotatibn therewithyan auxiliary. finger wheel journaled in theouter end of the casing and rotatable otherwise independently thereof, and reduction caring `connections between said auxiliary ngejwheel'and'the shaft whereby the shaft and platen may be rotated while 'che ratchet wheel and the casing remain sta.-

magi l.

2. e combination with aroller and its shaft ]ournaled 1n a fixed bearing, of a master wheel including a casing, a' gearr Awheel within .the casing secured to the mas- "ier wheel, a floating spider within the cas- Said 'te and positive the combination of a shaft, a master wheel journaled on the shaft, a worm wheel sc- 'cnred to the master wheel, means to rotate the master wheel, and gear connections including aworm meshing with the worm wheel to 'cause positive rotation of the shaft during rotation of the master wheel.

4. The combination of a shaft, a master wheel journaled thereon, a worm wheel secured to the master wheel, a spider secured to the shaft adjacent the worm wheel, a

countershaft journaled in the spider parallel to the first mentioned shaft, means to rotate the countershaft independently of the master Wheel, and gear -connections between the countershaft and the worm wheel, said connectionsincluding a worm `meshing with str.

the said worin wheel whereby a rotation off) the master wheel will cause similar rotatlm of the shaft or a rotation of the countershaft will cause a slow rotation of the main 'shaft-,while the master wheel remains stationary. ,l

In a typewriting' or adding machine the combinatlon with a line space Whee journaled loosely on a shaft, a worm wheel secured to said line space wheel, a Worm meshing with the worm wheel, a ycountershaft, a train of gears, and an auxiliary finger wheel meshing with said gears for.' turning the platen in the same direction as said auxiliary finger wheel is turned.

6.- In a typewriter or adding machine, the combination with a shaft and a line .space Wheel looselx1 mounted thereon, of a casing secured tot e line space wheel and rotatable step by step therewith, a direct linger wheel associatedi with said casing for rotating it and the shaft, a floating member adapted to float Within the casing and secured to the shaft, an auxiliary linger wheel adjacent the end of the casing and coaxial therewith, and connections between the auxiliary wheel and the floating member serving to cause rotation of the floating member and shaft in the same direction as the auxiliary wheel but at a different angular velocity.

7 In atypewriter or adding machine, the combination of a shaft, a line space wheel journaled loosely thereon, a worm wheel secured to said line space wheel, a worm meshing with said worm wheel, a floating spider `secured to the shaft, a countershaft, a train Lilaogae' tion gear connections between the auxiliary linger Wheel anol the coun.tershait7 substantially as and for the purposes set forth.

, 8. T n a typewritng or analogous ma,- chine, a rotary shaft, a platen secured thereto, a easing and a coaxial Worm Wheel conneete with each other, `looth casing and Worm Wheel being j'ournaled loosely on said rotary shaft, a main finger wheel combined with thejcasing for direct rotation of the shaft, a gear housing floating Within the Casin and secured to the shaft, a Worm car- Tied y said housing and meshing with a Worm Wheel, an auxiliary finger wheel adacent the main finger Wheel, and reduction gearing between the Worm and the auxiliary finger Wheel for rotating the shaft at a pre-v deteimined slower speed.

'ln testimony whereof l have signed my JosEPH n; FRAM.

Vtnesses ALEX. J. DETROW, BENJAMIN FITCH.

Images