US1508011A - Typewriting machine - Google Patents
Typewriting machine Download PDFInfo
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- US1508011A US1508011A US399356A US39935620A US1508011A US 1508011 A US1508011 A US 1508011A US 399356 A US399356 A US 399356A US 39935620 A US39935620 A US 39935620A US 1508011 A US1508011 A US 1508011A
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- lever
- line
- movement
- slide
- platen
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J19/00—Character- or line-spacing mechanisms
- B41J19/76—Line-spacing mechanisms
Definitions
- This invention relates to line-spacing mechanism, and more particularly to linespacing mechanism such as is used on the Underwood typewriter, and' the invention has for its object suchimprovement in the construction of these devicesthat the shock of operation of the parts used in linewspacing is less, resulting ⁇ in less wear and greater freedom from noise.
- a feature of the invention relates to the provision of means whereby the line-space lever is given a movement at each stroke, whether for one, two or three line-spaces, just sufiicient to properly line-space the platen, and, for this purpose, mea-ns are provided to arrest the yline-space lever in various normalpositions, said lever moving from any one of these positions to a definite position, such movements corresponding to the movements of the line-space mechanism for effecting one, two 'or three line-space movements of the platen.
- Anotherv feature of the invention relates to the provision of means for controlling the line-spacing slide and pawl, wherebyk they partake of movements in accorda-nce with the setting ofthe line-space lever.
- a stillv further feature of my invention relates to the provision for avoiding frictional 'contact between the line-space slide and the li.nespacelever duringlcase-sliifting movements of the platen, and there is provided for this purpose a clearance between the line-space slide and the line-space lever., said vclearance being maintained when the vline-space lever is adjusted so as to be ⁇ arrested in anyi'one of a plurality of normal positionsi
- Figure l is a Itop 'planview of the leftliand portion of' an Underwood typewriter, showing the line-'space lever and cooperatinline-space mechanism, set for single line 'space movements.
- Figure 2 isa front elevation of the"saniiel
- Figure 3 is an end view of theparts'f'in position for single-space'movements ofthe line-spacing mechanism.
- Figure 4 is a somewhat similar view, withy parts omitted and with the line-sp ⁇ aceV meehanism set for a t-wo-space movement of the platen.
- FIG. 5 is a view of thel end opposite to Figure 3, showing some of the' parts Referring to thedrawings, l, indicatesa platen, having a spindle 2, by which theA platen may be rotated in the platen-frame 3, such rotation being effected by means of a ratchet 4, secured to the spindle 'and adapted to he actuatedl one, two or three spaces by a pawl 5, pivoted to a linefspace ⁇ or pawl-carrier slide 6L
- the platen may be rotated, as usual', by hand, ⁇ by meansv of a knurled knob' 7.
- the slide 6' unconnected with but is vin the path of" moveN ment of and adapted tol be engaged and operated by a toe or pawl 8 of a line-Spee@ lever or finger-piece 9, thefinger-piece,loeing more particularly formed by a forwardly-eXte-nding lever-arm of the line-'space ⁇ lever 9, said linespace lever being pivoted at l0 in the carriage-frame l1.
- I provide means whereby the line-space lever list. ⁇ limited in its movement, depending upon the amount 4of movement itis desired to give lto the line-space pawl, Said lever, in its forward movement, is arrestedby a shoulder l2, carriedby the carriage-frame, but is limited in its return movement, according to whether one, two or three steps. of line-space movement are desired.
- a settable stop-de- ⁇ vice comprising a shaft 18, suitably7 mount-V y ed in ears 14, struck up from a plate 15, ⁇ v ⁇ screwed tothe carriage frame, said shaftl 13 carrying stop-pins 16, mounted radially about the shaft in angular-ly spaced ⁇ relation and so spaced from each other, longitudinally of the shaft, that the line-Space lever will be arrested in different positions, acf. cording to the rotational position the shaft occupiesB
- an index 16a shown as formed on the lett-hand ear 14, is provided, the shaft having a pointer 17 co-operating therewith.
- a housing 18 is provided on the shaft 13, outside of one of the ears 14, shown as the ear at the right, said housing having a spring pressed ball 18a engaging seats 18 in the said ear, and shown in Figure and at the right.
- Figures 1 and rl'he shaft is rotated by a lnurled knob 19, secured to its opposite end.
- a pair of stop-pins 19a ( Figures 1 and 5) on the right-hand ear 141 are engageable by the housing 18 to limit the rotative movement of the pin-carrying shaft 13.
- the slide 6 carries a pin 2O at its lett-hand end, Figure 3, to which is secured a spring 21, the opposite end ot said spring being attached to a pin 22, carried by the platentrame.
- a settable stopdevice is provided comprising a setting lever 23 having a lip 211 extending in trout ot a pin 25, carried by the slide 6.
- rlhe lever 23 is also connected by a pin-and-slot connection with a pawl-setting slide 26, which. slide carries a shelf 27.
- the pawl 5 has a portion 28 at one side thereot and which extends rearwardly and downwardly, and normally is seated on the shelt 27 when the pawl is in normal position.
- the lever 23 is moved to the position shown in Figure 1, carrying with it the slide 26, together with the shelt 27, and also, by reason ot the tact that the spring 2l is urging the slide 6 torwardly, pressing the pin 25 on the slide against the lip 24 on the lever, said slide will follow up the lever 23 as it is moved from the po sition shown in Figure 3 to that shown in Figure 4l, so that the slide will have a ditferent ⁇ normal position from that occupied in vthe Figure 3 position.
- the slide 26 is maintained in its ditlerent positions ot adjustment by engagement oit a detent spring 29 with depressions 3() in the slide 26, this spring extending from a hearing 81, upon which the slide 26 is slidably supported Said bearing 31 also forms a pivot 'for the usual ratchet-detent lever 32, carrying at its end a roller 88, engaging the ratchet-teeth.
- a line-spacing mechanism for type writers comprising a, pawl a line-spacing lever, a pawl-carrier in the path oit movement ot the line-spacing lever to be operated thereby to impart line spacing movement to the pawl, means acting through the pawl-carrier for setting the pawl to di'tlerent positions to control the line-spacing movement of the platen, and means independent ot the pawl-setting means tor arrest-ing said line-spacing lever in various normal positions spaced to cor respond with the setting of said pawl tor diiierent line-spacing' movements oi the platen.
- said lever a line-space pawl lcar,ljiedfby;said sli'd'e, 'a 'sp rii1'f. ;fv urging "s'ail4 slide” and'pafWl toward 'the line' spafeeflevei, af seating;y lever lia-ving a flip, and'. 'av 'steplf .'oarried': 'said slide and 'engaging' .said.-lip'.'nndeit'aetin of said spring, said ⁇ l setting leven-' movable to different,l positions, 'and' said spring.
- a ',platenframe of means on' shifting .said yplaten-trarne rela, tively to sa-id'. Voarrfi'agefranie between, upper pds'iti'ning? said sli'd'e vto effect d'iiierentv 'de-f' grees of" linelspapingf fa ⁇ line-spate lever mounted ⁇ on said. eatriage-f',frame, fori engagmg ⁇ anal actuating, said'.
- Line-spacing mechanism for the platen of a typewriting machine having, in combination, a line-spacing finger-piece, a ratchet connected with the platen, a pawl engageable with the ratchet, a pawl-carrier unconnected with but in the path of movement of the linger-piece to be engaged and operated thereby to line-space the platen, a spring for returning the pavvl-carrier towards the linger-piece, a stop-device settable in the path of the return movement of the finger-piece to ⁇ vary the extent of such return movement for correspondingly varying the line-spacing of the platen, and a settable stop-device for variably limiting the return movement of the pawlv-carrier to correspond with the extent of the return movement of the finger-piece as determined by the settable stop-device therefor.
- a carriage in combination, a carriage, a platen-frame shiftable on the carriage between upper and lower case positions, a line-spacing fingerpiece movably mounted on the carriage, means connected to the platen including a line-space slide on the platen-frame unconnected with but in the path of movement of the finger-piece to be engaged and operated thereby to line-space the platen, a stop-device settable in the path of the return movement of the finger-piece for variably limiting such return movement so as to correspondingly vary the line-spacing of the platen, a spring for returning the slide towards the finger-piece, and a stop-device settable in the path of the kreturn movement of the slide for variably limiting such return movement to correspond with the extent of the return movement of the fingerpiece as determined by the settable stopdevice therefor, and so as to provide clearance between the returned slide and the returned nger-piece in their various correspondingly returned positions.
- Line-spacing mechanism for the platen of a typewriting machine having, in combination, a pivotedline-space lever having a lever-arm forming a finger-piece, and a stop-device settable in the path of movement of said lever-arm to vary the extent of line-spacing movement of the line-space lever for correspondingly varying the linespacing of the platen: said stop-device comprising a rotatable shaft extending transversely to said lever-arm, and a stop-pin projecting from the shaft and movable into or out of the path of movement of the lever-arm by rotating the shaft.
- Line-spacing mechanism for.y the platen of a typewriting machine, having, in combinatioma pivoted line-space lever hav- Moenia ing a lever-arm forming a finger-piece, and a stop-device settable in the path of movement of said lever-arm to vary the extent of line-spacing movement of the line-space le-l ver for correspondingly varying the linespacing of the platen; said stop-device comprising a rotatable shaft extending transversely to said lever-arm, and a plurality of stop-pins longitudinally and angularly spaced on the shaft and movable selectively by the rotation of the shaft into or out of the path of movement of said lever-arm.
- Line-spacing mechanism for the platen of a typewriting machine having, in combination, a pivoted line-space lever having a lever-arm forming a finger-piece, and a stop-device settable in the path of movement of said lever-arm to vary the extent of line-spacing movement of the linespace lever for correspondingly varying the line-spacing of the platen: said stop-device comprising a rotatable shaft extending transversely to saidv lever-arm, a stop-pin projecting from the shaft and movable into or outof the pathof movement of the lever-arm by rotating the shaft, and a detentdevice for detaining the pin-carrying shaft at its different rotative positions.
- Line-spacing mechanism for the platen of a typewriting machine havin@ ⁇ in combination, a pivoted line-space lever having a lever-arm forming a finger-piece, and a stop-device settable in the path of movement of said lever-arm to vary the extent of line-spacing movement of the linespace lever for correspondingly varying the line-spacing of the platen;
- said sto-p-device comprising a rotatable shaft extending transverselyl to said lever-arm, a plurality of stop-pins longitudinally and angularly spaced on the shaft and movable selectively by the rotation of the shaft into or out of the path of movement of said lever-arm, and a detent-device for detaining the pin-carrying shaft at its different rotative positions
- Line-spacing mechanism for the platen of a typewriting machine having, in combina-tion, a pivoted line-space lever having a lever-arm forming a finger-piece, a stop-device settable in the path of the return movement of said lever-arm to vary the extent of the return movemnt of the line-space lever for correspondingly varying the line-spacing ⁇ of the platen, a linespa'ce slide unconnected with but in the path of movement of the line-space lever to be engaged and operated thereby to line-space the platen, a spring for returning the slide towards the line-space lever, and a stop-device settable in the path of the return movement of the slide to vary the extent of such return movement to correspond with the extent of the return movement of the linespace lever as determined by the settable stop-device therefor; said stop-device for the line-space lever comprising a rotatable shaft extending transversely to said leverarm, a plurality of stop-pins longitudinally and angularly space
Description
Sept. 9 1924.
#una July 27. 1920 Patented Sept. 9, 1924.
isoaoii trice.
OOBJNELIUS B. 'CORCORADL 0l? NEW YQRK, N. Y., .tSSIG'NOR` T0 'U'NID'EBT-WTO0]),'"JYLE-vA WRITER COMPANY, OIF NEW' YORK, N. Y., A CORPORATION OF: DELAWARE..
TYPEVRITING IVIACHINE.
`applicati@ mea any 27, ieee(l serial No'. 399,353.
To @ZZ whom t may concern.'
Be it known that I, CORNELIUS- B. Con# Conan', a citizen of the United States, residing in borough of the Bronx, in the county of the Bronx, city and State ofy New York, have invented certain new and useful Improvements inv Typewriting li/Iag chines, of which the following is a specilication.
This invention relates to line-spacing mechanism, and more particularly to linespacing mechanism such as is used on the Underwood typewriter, and' the invention has for its object suchimprovement in the construction of these devicesthat the shock of operation of the parts used in linewspacing is less, resulting` in less wear and greater freedom from noise.
A feature of the invention relates to the provision of means whereby the line-space lever is given a movement at each stroke, whether for one, two or three line-spaces, just sufiicient to properly line-space the platen, and, for this purpose, mea-ns are provided to arrest the yline-space lever in various normalpositions, said lever moving from any one of these positions to a definite position, such movements corresponding to the movements of the line-space mechanism for effecting one, two 'or three line-space movements of the platen.
Anotherv feature of the invention relates to the provision of means for controlling the line-spacing slide and pawl, wherebyk they partake of movements in accorda-nce with the setting ofthe line-space lever.
A stillv further feature of my invention relates to the provision for avoiding frictional 'contact between the line-space slide and the li.nespacelever duringlcase-sliifting movements of the platen, and there is provided for this purpose a clearance between the line-space slide and the line-space lever., said vclearance being maintained when the vline-space lever is adjusted so as to be `arrested in anyi'one of a plurality of normal positionsi Other features'and advantages will hereinafter appear;
In the accompanying drawings, f
Figure l is a Itop 'planview of the leftliand portion of' an Underwood typewriter, showing the line-'space lever and cooperatinline-space mechanism, set for single line 'space movements.
Figure 2 isa front elevation of the"saniiel Figure 3 is an end view of theparts'f'in position for single-space'movements ofthe line-spacing mechanism.
Figure 4; is a somewhat similar view, withy parts omitted and with the line-sp `aceV meehanism set for a t-wo-space movement of the platen.
Figure 5 is a view of thel end opposite to Figure 3, showing some of the' parts Referring to thedrawings, l, indicatesa platen, having a spindle 2, by which theA platen may be rotated in the platen-frame 3, such rotation being effected by means of a ratchet 4, secured to the spindle 'and adapted to he actuatedl one, two or three spaces by a pawl 5, pivoted to a linefspace` or pawl-carrier slide 6L The platen may be rotated, as usual', by hand,` by meansv of a knurled knob' 7. The slide 6' unconnected with but is vin the path of" moveN ment of and adapted tol be engaged and operated by a toe or pawl 8 of a line-Spee@ lever or finger-piece 9, thefinger-piece,loeing more particularly formed by a forwardly-eXte-nding lever-arm of the line-'space` lever 9, said linespace lever being pivoted at l0 in the carriage-frame l1.
The construction so far described'is similar to that usually found in Underwood' typewriters, and, with such construction, the line-space lever always has the same amount ofV motion ywhether operating Vf r'orf one, two or three ,stepsl Ofline-space mover" ment. l l
In the present construction, I provide means whereby the line-space lever list. `limited in its movement, depending upon the amount 4of movement itis desired to give lto the line-space pawl, Said lever, in its forward movement, is arrestedby a shoulder l2, carriedby the carriage-frame, but is limited in its return movement, according to whether one, two or three steps. of line-space movement are desired. For this purpose, I provide a settable stop-de-` vice comprising a shaft 18, suitably7 mount-V y ed in ears 14, struck up from a plate 15,`v` screwed tothe carriage frame, said shaftl 13 carrying stop-pins 16, mounted radially about the shaft in angular-ly spaced `relation and so spaced from each other, longitudinally of the shaft, that the line-Space lever will be arrested in different positions, acf. cording to the rotational position the shaft occupiesB For readily determining the set-- ting of the shaft, an index 16a, shown as formed on the lett-hand ear 14, is provided, the shaft having a pointer 17 co-operating therewith. To conveniently maintain the shaft in its diiterent set positions, a housing 18 is provided on the shaft 13, outside of one of the ears 14, shown as the ear at the right, said housing having a spring pressed ball 18a engaging seats 18 in the said ear, and shown in Figure and at the right. in Figures 1 and rl'he shaft is rotated by a lnurled knob 19, secured to its opposite end.
A pair of stop-pins 19a (Figures 1 and 5) on the right-hand ear 141 are engageable by the housing 18 to limit the rotative movement of the pin-carrying shaft 13.
, In order that the line-space pawl may operate its ratchet different degrees, the slide 6 carries a pin 2O at its lett-hand end, Figure 3, to which is secured a spring 21, the opposite end ot said spring being attached to a pin 22, carried by the platentrame. rlhe spring 21 tends to urge the slide 6 to the right, Figure 8, and towards the toe or pawl 8 of the line-space lever 9, and. to limit the movement ot the slide under action ot' this spring, a settable stopdevice is provided comprising a setting lever 23 having a lip 211 extending in trout ot a pin 25, carried by the slide 6. rlhe lever 23 is also connected by a pin-and-slot connection with a pawl-setting slide 26, which. slide carries a shelf 27. The pawl 5 has a portion 28 at one side thereot and which extends rearwardly and downwardly, and normally is seated on the shelt 27 when the pawl is in normal position. lith the parts positioned as shown in Figures 1, 2 and 3, movement of the line-space lever will result in engaging and moving rearwardly the slide 6, and, as soon as the portion 28 oli' the pawl drops ott ot the shelf 27, the pawl 5 will engage the ratchet 4i and more said ratchet until the parts are arrested by the lever 9 striking the shoulder 12, imparting a singlespace movement to the atchet and platen. it a two-space movement ot the ratchet is desired, the lever 23 is moved to the position shown in Figure 1, carrying with it the slide 26, together with the shelt 27, and also, by reason ot the tact that the spring 2l is urging the slide 6 torwardly, pressing the pin 25 on the slide against the lip 24 on the lever, said slide will follow up the lever 23 as it is moved from the po sition shown in Figure 3 to that shown in Figure 4l, so that the slide will have a ditferent` normal position from that occupied in vthe Figure 3 position. lilith the parts thus positioned as in Figure ll, movement ot the line-space lever will cause the pawl to acuate the ratchet two spaces, it, oit course, being understood that the shatt 1?; has been rotated to position the second pin 16 to con tact with the line-space lever, so that it moves from a differentnormal position from that occupied in Figure 1, and from the position there indicated in dotted lines. it will be noted, in Figure L1, that the pawl 5 drops into engagement with the ratchet after a slight lost motion ot the slide, but that this lost motion is the same whether 'the parte are positioned"y for one, two or three linespace movements, the amount ot' movement of the pawl depending upon the setting ot the lever 23 and the shaft 13. The slide 26 is maintained in its ditlerent positions ot adjustment by engagement oit a detent spring 29 with depressions 3() in the slide 26, this spring extending from a hearing 81, upon which the slide 26 is slidably supported Said bearing 31 also forms a pivot 'for the usual ratchet-detent lever 32, carrying at its end a roller 88, engaging the ratchet-teeth.
it will be noted, by reference to ldligure 1, that there is a clearance between slide 6 and the pawl 8, and this clearance is maintained by properly positioning the pins 16 and the depressions in the slide 26, so that the lig 24 always engages the pin 25, to hold the slide out ot contact with the pawl 8. rlhis provision is important by reason ot the tact that it prevents any trictional Contact between the pawl and the slide during caseshitting operations. The mechanism by which case-shitting is performed is not specifically shown, but comprises the usual mechanism for this purpose `found in the Underwood typewriter, it being noted that the platen trame 8 is shifted relatively to the carriage-trame 11, under the control ot the case-shitting mechanism.
Variations may be resorted to within the scope ot the invention, and portions ot the improvements may be used without others.
Having thus described my invention, l claim:
1. ln a line-spacing mechanism for type writers, the combination with a platen, ot means for moving the platen, comprising a, pawl a line-spacing lever, a pawl-carrier in the path oit movement ot the line-spacing lever to be operated thereby to impart line spacing movement to the pawl, means acting through the pawl-carrier for setting the pawl to di'tlerent positions to control the line-spacing movement of the platen, and means independent ot the pawl-setting means tor arrest-ing said line-spacing lever in various normal positions spaced to cor respond with the setting of said pawl tor diiierent line-spacing' movements oi the platen.
2. In a line-space mechanism Yfor type-- writers, the combination with a line-space lever, ot a slide with which said lever co-l operates, said slide being unconnected with but in the path ot :movement ot a part of Sti lll)
said lever, a line-space pawl lcar,ljiedfby;said sli'd'e, 'a 'sp rii1'f. ;fv urging "s'ail4 slide" and'pafWl toward 'the line' spafeeflevei, af seating;y lever lia-ving a flip, and'. 'av 'steplf .'oarried': 'said slide and 'engaging' .said.-lip'.'nndeit'aetin of said spring, said`l setting leven-' movable to different,l positions, 'and' said spring. acting to eansesaid slide to, follow np: 'said A'setti'r'g lever, Wli'ereby' 'said Vvpand' 'is variably' posi.- ti'onedn v p Y 3. In a line-space` mechanism. fotypel Writers, the combination 'with a li'nefspaee lever, of a `slide 'with which said' leverycol operates, a line-spacepawl carried', `by'said slide, 'a springl urging said' slide. and' 'pa'Wl in one direction, a settingf lever having 'ay lip, a stopearried'. by' said slide and engaging said' lip under action 'of' saidspring',.sai`d setting lever movable to` di'erent positions, and' sai'd springv acting to cause said. slide'. to follow up saidI setting lever, a "platenf4 ratchet engageable, by ysaid plavvl,v a shelf supporting` said pa'vvlV 'ont 03E Contact With. said' ratchet' 'when 'said' stop" is(y in. 'Contact with said' lip, and' means for connecting'. rS'faidl shelf for"v 'movement vk-*i'tlns'aidy Setting lever.'
4. In a line-'space me'ch'anism'for'type writers, the eonibinati'on'with 'a ,lines'paee lever, of. a slid'efvvith- 'which' 'saidfdeverieol operates, a line-space pawlfcarried"bygsaid slide, AYa spring .,urgi1ig"said"slide and.' pa'wl' in"l one "direction, a setting le-ve'n-havingY lip', a 'stop'.'e'arried' by `said slide and' 'enga'gingv said4 lip under' action of spring,
said setting'lever'movable `to di'i'erfent posi-v tions, and sai'd spring actingtov 'causesaid slide to follow up said] setting"-leve'r, a platen-ratchet 'engageab'le by said pa'wl, a shelf'supporting" saidi pa'Wl ont 'of ,Contact Witli said ratohet'when 'said'stop' 'is in ycon?V taet 'With said lip, 'means for" con'n'eeting"v 's 'aidl shelf foiffmo'vement with 'said I'setting lever,` and means foi-'stopping' said' linespaeelever in^"norinal" positions' correspondin' .lto'jthe' differentpositions' off said; 'setting: y 'ev'eri' 5. In a typevvritingf naehinega carriage," a platen sliii'talble` "to I enable'v `,upper-'ea,se `v characters "to: be printed," a platen-rat'ohet,5 a pavvl yfor actuating'said ratehe't,fmeans'}for predetermining the amount'of movement lof the 'paWl` to" 'actu'ate the, ra\tehet ay line? sp'a'cing vleve'r monnted on the Carriage', andi means'for'varyin'g the amount ofin'vement' of' said' line-spacing.' Alever to' corresponde with the predetermined 'amount' 'of move`V ment 'of'said paWL' said' first" means beingA independent of` said'latterlne'an'sv and' mov'- able relativelythereto in the case-shifting movement of' the' platen."
6"-III' rva typewriting "mael'rifle7 a pltet Sh'ftabl' t0' 'Causeupnericase characters to be'print'ed,"a line-spacing pa'wl', 'means for controlling' saidpa'w'l so that it 'moves from' dii'erent predetermined normal positions to a definite positiomfa lmeffs'paeingfllevenja pavvl;ear-.rien` -uneonneetedi With,b1 1t in. the. path! of' movement' of., theline-fspain-g lever, tof'be' operated.. thereby,... to.. im]g` art line.- spaeing' movement 'to the DaWl', the` paWl-earrier and. line-spacingj .f-leverff being relatively. movable 'inf'k the' oase-shifting movement of.' the platen', and' means.- to'E set the' extent ef? movement.' of' the." line-spacing level" toi Correspond. in. spaeedfrelation' with th'e'movement. of'ithelpa'wl'. y v 7. ln.. a. typ'eWrfiti'n'g :maeliine,I a carriage,y a linerspaeing",'leven'mountedf on. thev ear-f riage.,' means'. on. the Carriage `for adjustably lin'iitling the stroke 'of the i line-spacing' lever,l a platen mounted onv the carriageland shift" able relatively .thereto to permit upper-ease elia1"'at`oters.Y to be f printed, line-spacing meohanism 'operated' by said" lever, but shiftable relatively thereto With the platen, com-V pr'ising'a pl'atenfratohena pavvlffor operatin'g" thel ratehet,"andl "a palvyl-oarrierh and' means shiftable Wi'th'tl'i'e.V platen.v forl adjusting 'the 'positionfo the palvvvlleearnier in. a; corresponding' i, spaced'.A relation-1 `With f the l`er`gjtjlY ,ofiis'trok'e' off' the' lin'es'pacing lever.
, ,8; AI'n a ty'peWriting niaehinegla rcarriage,.a line-spacing" lever.4 mounted.' on'. thefearriage; a pltenframe"mounted' rnthe.7 earriage lan'd sli'i'ftablerelatively 'theret'e to permit upper-f case' 'characters te bef'pninted a; .platen, linee spacing '.meehan'i's'm' loperated vby ofthe?- li'ne.-k
spacing" lever, but 'shiftable relatively theret'o with.. the"platenycomprigf e Slidel and;
sep' arabe",y means on lthe carriage.' and.l on the. platenlfr'ame! for .adjnstin'g'f respectively the range of?, movement.' 'of' the.' linespaeilng` 4lever "and" the 'rangeffof movement of.' the' slide to? correspond infspaeed relation `one :'Witlr the'ethjgr: l, i a I y 9. 'aflinespaoe" mechanism `for. {type- Writ'in Shiayohine'a'. the, 'combination with. 'a ltranie'fand'. a ',platenframe, of means on' shifting .said yplaten-trarne rela, tively to sa-id'. Voarrfi'agefranie between, upper pds'iti'ning? said sli'd'e vto effect d'iiierentv 'de-f' grees of" linelspapingf fa `line-spate lever mounted` on said. eatriage-f',frame, fori engagmg` anal actuating, said'. slide., and meansfor arresting said' ,leverin various normalA po.- sltl'ns spacedt'ojcorrespondewith the .various ,y positions' bij thel slide, saidlever and' l slide being` 'maintained' lout ofy Contact with eachotle'rlvvzlien the! line-space lever is in anyl` one fitsnormal. positions. i v 1 0; In!` a ltypevvri.ting' .machine7 l'a platen shiftablel togpe'rmit..upperfease. eharacters-` tov relatively' thei'eto'inj the ease-shifting movef4 ment of the platen,l and `meansfor coc-ondina'tely adjnsti'ngitlie ranges of. movement of sai'd'membersfto'vary the extent eflltlieglineef lao.
spacing movement of the platen to correspond in spaced relation with one another and prevent lost motion between the membersB ll. Line-spacing mechanism for the platen of a typewriting machine, having, in combination, a line-spacing finger-piece, a ratchet connected with the platen, a pawl engageable with the ratchet, a pawl-carrier unconnected with but in the path of movement of the linger-piece to be engaged and operated thereby to line-space the platen, a spring for returning the pavvl-carrier towards the linger-piece, a stop-device settable in the path of the return movement of the finger-piece to `vary the extent of such return movement for correspondingly varying the line-spacing of the platen, and a settable stop-device for variably limiting the return movement of the pawlv-carrier to correspond with the extent of the return movement of the finger-piece as determined by the settable stop-device therefor.
l2. In a front-strike typewriting machine, in combination, a carriage, a platen-frame shiftable on the carriage between upper and lower case positions, a line-spacing fingerpiece movably mounted on the carriage, means connected to the platen including a line-space slide on the platen-frame unconnected with but in the path of movement of the finger-piece to be engaged and operated thereby to line-space the platen, a stop-device settable in the path of the return movement of the finger-piece for variably limiting such return movement so as to correspondingly vary the line-spacing of the platen, a spring for returning the slide towards the finger-piece, and a stop-device settable in the path of the kreturn movement of the slide for variably limiting such return movement to correspond with the extent of the return movement of the fingerpiece as determined by the settable stopdevice therefor, and so as to provide clearance between the returned slide and the returned nger-piece in their various correspondingly returned positions.
13. Line-spacing mechanism for the platen of a typewriting machine, having, in combination, a pivotedline-space lever having a lever-arm forming a finger-piece, and a stop-device settable in the path of movement of said lever-arm to vary the extent of line-spacing movement of the line-space lever for correspondingly varying the linespacing of the platen: said stop-device comprising a rotatable shaft extending transversely to said lever-arm, and a stop-pin projecting from the shaft and movable into or out of the path of movement of the lever-arm by rotating the shaft.
' 14'. Line-spacing mechanism for.y the platen of a typewriting machine, having, in combinatioma pivoted line-space lever hav- Moenia ing a lever-arm forming a finger-piece, and a stop-device settable in the path of movement of said lever-arm to vary the extent of line-spacing movement of the line-space le-l ver for correspondingly varying the linespacing of the platen; said stop-device comprising a rotatable shaft extending transversely to said lever-arm, and a plurality of stop-pins longitudinally and angularly spaced on the shaft and movable selectively by the rotation of the shaft into or out of the path of movement of said lever-arm.
l5. Line-spacing mechanism for the platen of a typewriting machine, having, in combination, a pivoted line-space lever having a lever-arm forming a finger-piece, and a stop-device settable in the path of movement of said lever-arm to vary the extent of line-spacing movement of the linespace lever for correspondingly varying the line-spacing of the platen: said stop-device comprising a rotatable shaft extending transversely to saidv lever-arm, a stop-pin projecting from the shaft and movable into or outof the pathof movement of the lever-arm by rotating the shaft, and a detentdevice for detaining the pin-carrying shaft at its different rotative positions.
16. Line-spacing mechanism for the platen of a typewriting machine, havin@` in combination, a pivoted line-space lever having a lever-arm forming a finger-piece, and a stop-device settable in the path of movement of said lever-arm to vary the extent of line-spacing movement of the linespace lever for correspondingly varying the line-spacing of the platen; said sto-p-device comprising a rotatable shaft extending transverselyl to said lever-arm, a plurality of stop-pins longitudinally and angularly spaced on the shaft and movable selectively by the rotation of the shaft into or out of the path of movement of said lever-arm, and a detent-device for detaining the pin-carrying shaft at its different rotative positions,
17. Line-spacing mechanism for the platen of a typewriting machine, having, in combina-tion, a pivoted line-space lever having a lever-arm forming a finger-piece, a stop-device settable in the path of the return movement of said lever-arm to vary the extent of the return movemnt of the line-space lever for correspondingly varying the line-spacing` of the platen, a linespa'ce slide unconnected with but in the path of movement of the line-space lever to be engaged and operated thereby to line-space the platen, a spring for returning the slide towards the line-space lever, and a stop-device settable in the path of the return movement of the slide to vary the extent of such return movement to correspond with the extent of the return movement of the linespace lever as determined by the settable stop-device therefor; said stop-device for the line-space lever comprising a rotatable shaft extending transversely to said leverarm, a plurality of stop-pins longitudinally and angularly spaced on the shaft and movable selectively by the rotation of the shaft into or out of the path of the return movement of said lever-arm of the line-space lever, and a detent clevioe for detaining the vpin-earrying shaft et its different rotative positions.
CGRNELIUS B. CORCORAN. TWitnesses:
EDITH B. LIBBY,
JENNIE P. THORNE.`
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US399356A US1508011A (en) | 1920-07-27 | 1920-07-27 | Typewriting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US399356A US1508011A (en) | 1920-07-27 | 1920-07-27 | Typewriting machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1508011A true US1508011A (en) | 1924-09-09 |
Family
ID=23579212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US399356A Expired - Lifetime US1508011A (en) | 1920-07-27 | 1920-07-27 | Typewriting machine |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1508011A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4257282A (en) * | 1979-05-14 | 1981-03-24 | Wilczewski Robert H | Transport system for a dot matrix printing mechanism |
-
1920
- 1920-07-27 US US399356A patent/US1508011A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4257282A (en) * | 1979-05-14 | 1981-03-24 | Wilczewski Robert H | Transport system for a dot matrix printing mechanism |
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