US1332972A - campbell - Google Patents

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Publication number
US1332972A
US1332972A US23863618A US1332972A US 1332972 A US1332972 A US 1332972A US 23863618 A US23863618 A US 23863618A US 1332972 A US1332972 A US 1332972A
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US
United States
Prior art keywords
wheel
pinion
plate
dog
carriage
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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English (en)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed filed Critical
Priority to US23863618 priority Critical patent/US1332972A/en
Priority to GB32727/19A priority patent/GB158147A/en
Priority to FR508367A priority patent/FR508367A/fr
Application granted granted Critical
Publication of US1332972A publication Critical patent/US1332972A/en
Priority to DEW60619D priority patent/DE397325C/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B41J19/18—Character-spacing or back-spacing mechanisms; Carriage return or release devices therefor

Definitions

  • Another feature is that the portion of the backspacing; mechanism, which coiiperates directly with the escapemen' mechanism, is mounted. on the integrally formed supporting member, thereby securing accuracy oi copcration between the hack-spacing mechanism and the escapement mechanism. when the parts are once placed on said member. s i
  • i i'gure 1 is a general side View oi? a typewriting machine in section, showing my iniention applied thereto.
  • Fig. 2 isa sectional top plan view of the machine, parts""-"eing omitted for clearness.
  • Fig. is a detail top plan view of cscapeinent mechanism detached from shift-frame oi", theinechinem.
  • Fig. 8 is-a detail perspectii e view 0. the parts'shown in Fig; 5.
  • Type keys l1. (Figsl and '2) are connected with bell-cran s 12, which, through .i1nlts.13,sw1ng upwardly ai rearwardl3 type-liars 14- having types 15 at their for- 50 Ward ends, to strike against a work-sheet woundaround :1
  • the loose dog 2 normally in engagement with a tooth 26 of an ceca euient wheel 27 mounted on an arhor said wheel having a driving connection with an cscapclnent i .ion normally meshing with a rack 210 3) on the carriage 17.
  • the mechanism tor operating); the dogccrriage. constitutes a universal bar 06 (Figs. 1 a 1d 2) undcrlring al the l c .'-le ⁇ 'ers laT, which, when depressed. swing;- wild haido rnwardlr' against the tension oil a sprinu 38 (Fig. 1), which continually tends to urge upwardly a hail of which said liar forms apart.
  • the hail 3.) is intcgrrall tornied 0t sheet-metal and has an arm ll) integrally formed therewith. to which is connected an adjustable link 41. the :lorwaid end of which is connected with an arm l-Z fast on a rock shai't l3. on which a spacelzey i is mounted.
  • the hail 39 is mounted on a rock shaft journaled in brackets 17. At the depressic-n 0t any character he said hail will he oi": the dog-rocker 7.34. so that when the ha'l n iii swuiur at t depression of a key ll. 5-, the arm 49 will he swung fouwardlv to. suing the dogij-rocl-zcr 2% about its pivots 5 and to move the loose dog 23 out ot engage with the tooth 26 01 the escapeincut wh l. Said pivots 53, it will he noted. are
  • the fork 52 permits' the shift frame and the escapement unit to rise and fall while controlling the escapement of the carriage.
  • the carriage 17 may be moved in an antiletter-feeding direction by a back-spacing mechanism provided with a key 56 to move said carriage one letter-space backwardly.
  • the loose dog 23 and its connections are such as to permlt sa d backward rotation of the escapementwheel until an anteceding tooth .63 (Fig. 3) of said wheel is [moved mto engaging relation with the dog 2; At the release of the back-spacing key ofiQthe'tooth 63 will be forced by the spring drum 21 against said loose dog until the latter is arrested by its'stop on the dog rocker; thus positioning; the" carriage one letter-space back.
  • the parts of the eseapement mocha nism are mounted upon an integrallyformed supporting member 67 (F 2, 3, and 8) in such a manner that said parts will be in exact coiiperative position when once mounted on said member, whichis prefen bly formed of an originally flat sheet of metal.
  • This member 67 also c'arries'the spring; drum. 21 on a bracket 68 integral with said member, and supportsthat portion of the back-spacing; inechanisin which coacts directly with the escapement wheel 27 on a bracket 69 (Figs. 3 and also integral with said member. v
  • the tension of the spring drum 21, which j drives the carriage 17 may be adjusted by (Figs. 2, 5 and 8), which. is used to fasten the left end of said member 67 to the shift frame 18, the pawl 72 being so formed as to be held against displacement by the shift frame 18.
  • the construction is such that the parts supported by the member 67' may" be assembled thereon, without the machine being in exact cooperative position, and subsequently attached to the shift frame 18, by means of set screws 74 (Figs. 2 and 5), in such a manner that the escapement pinion 29 will be in position to mesh exactly with the rack-bar 30 of the carriage when said member and the parts supported thereby are once placed on the shift frame 18.
  • the ball-bearings 75 on which they run are made adjustable so that all lost-motion therebetwecn may be taken up.
  • the arbor 28 upon which theescapeniont wheel and pinion are mounted is in the form of a threaded bolt and nut, one end of which is supported in the main portion of said member 67, and the other end of which is supported in a bent-over portion 7
  • ment wheel is provided with a hub 77 at and 6), the ends of which are in the foim of ball-races 7 3, opposed ball-races 79, 80 bemg mounted in said supporting member (37 and bentcver portion or bracket 76, respectively.
  • the bracket 76 which supports said arbor 28, is made flexible so as to be drawn toward the main portion of said supporting member, when said bolt and nut 28 are tightened to take up all the lost-motion in said bearings 7 5. This may be done without the machine, or may he done after said supporting member 67 is attached to the shift frame 18; an opening 81 (Fig.8) being provided in said frame through which the slotted hen d 82 of the bolt projects, so as to be accessible for manipulation.
  • connection between the escapement wheel 27 and the escapement pinion 29, the hub 77 of said wheel has a flat surface 85 formed thereon (Figs. 2, 4. and 6), the plane of which is substantially parallel with the axis of the wheel 27 and is placed at a distance from said axis to correspond with a similar flat surface 86 (Fig. 7) formed on the pinion 29, sothat when said pinion is slipped. onto the hub of said wheel, the pinion and wheel will rotate in unison.
  • Said surfaces 85, 86 are so placed relatively to the graduations or teeth of the wheel and pinion and to the rack 30 on the carriage, that when the escapement wheel is ball-bearings adarrested by theloose dog 23, an index on a platen-scale 87 (Figs. 1 and 2), provided at the :l:'ront of the platen 16, will be at the writing point. 7
  • a single springBl for theloose escapement dog 23 serves to throw said dog into engaging relation with the sum cceding tooth ot' the escapement wheel 27 and to effect the throw of said dog in a letterieeding operation, said spring 31 also permitting said dog 23 to be moved into ongaging relation with the anteceding teeth 6?) of the escapemcnt ,wheel.
  • the entire -e capement mechanism may be removed from the machine for repairs or other adjustments, b loosening the set screws 73, 74:, and maybe transported to a shop; for the purpose, without transporting the entire machine. This is a saving of expense in the cost of repairs, and decreases the amount of packing required and liability of. breakage in transportation.
  • a unit comprising a ca-rriage-controlling mechanism l'orlattaclnnent to a typewritin machine mone endja dog device to 'coiiperate with the teeth of said escapement wheel, and at the other end a baror part by which it is operated; that said unit is mounted for caseshifting movement up and down, said opcrating part 52 extending in an up and-down direction, and said rocker Qlbemgpwoted on a vertical axis and said'escapement wheel 7 :27 being" pivoted on a horizontal axis; that ball bearings are provided'upon said main plate for the ends or the shaft 28, means being provided for forcing the'bent-over part or the mam plate toward the body thereof for taking up the play in the ball bearings;
  • the spring barrel is provided with a spring having an ad usting wheel that a pawl or dog 72 is provided to lock said adjusting wheel; that said pawl is pivoted upon: a. screw 73; that a support 18 for said unit hasan' ear or part, Fig. 8, en'gageable by said+pawl to hold the-same'in position; that the-shifting frame comprises Ta sheetmetal plate 18 on edge and formed with a earriage :trackatits upper edge,-said unit being secured to said plate below said track,
  • I claim 1. In a typewriting machine, the combination of a traveling carriage, an escapement mechanism tor causing letter iced movements of said carriage, an escapement wheel forming part of said escapement mechanism, an escape-merit pinion forming part of said escapement mechanism, a. flat surface "formed on the hub of said wheel, and a ilill?SllFfHCG'fOlTlTlGCl on said pinion, said surfaces being so placed that the teeth of said wheel and said pinion will be in cor rect coiiperative position when said wheel and pinion are once assembled.
  • a. typewriting machine the combination of traveling carriage, means for causing letter-feed movements of said carriage, an escapement wheel forming part of said means, ball-bearings and an arbor on which said wheel is mounted, an integrally-formed supporting member for said means, and a flexible bracket integral with said member for supporting one end of said arbor, said bracket being adjustable axially of said arbor for adjusting said bearings.
  • a. traveling carriage means for causing letter-feed movements of said carriage, an escapement wheel and pinion forming part of said means, an integrally-formed supporting member for said means. and a bracket integral with said member for supporting said wheel and pinion, said bracket being flexible to take up axial lost-motion of said wheel and pinion.
  • a unit of carriagecontrolling meshenism for-attachment to a typewriter ma chine comprising a sheet-metal plate having; at one end a carriage-driving spring, and having at the other. end-an eseapement wheel and pinion, said-other end beingbent over to confine the wheel and pinion, the wheel and pinion mounted upon a shaft, means being provided for forcing the bent-over part of the plate toward the body thereof for takingup the play in the shaft, and a rocker mounted on said plate between said escapement wheel and said sprin and having dog devices to coiiperate with. said escapement wheel. 1
  • A. unit of carriage-controllingmechanism for attachment t a typewriting machine comprising a sheet-metal plate having at one end a carriage-driving spring. and having at the other end an escapement wheel and pinion, said other end being bent over to confine the wheel and pinion. the wheel and pinion mounted upon a shaft, means being provided for, forcing the bentover part of the plate toward the body thereof for taking up the play in the shatt,-and a rocker mounted on said plate between said escapement wheel andsaid spring. and having dog devices to cotinerate with said escapement wheel, said plate having; opposite ibent ears between which said rocker is confined, and in which it is pivotally supported.
  • a unit of carriagecontrollingmechanism for attachment to a typewriting' machine comprising a sheet-metal plate having at one end. a carriage-driving sprin and having at the other end an escapement wheel and pinion, said other end being; bent over to confine the wheel and pinion. the wheel and pinion mounted upon a shaft. means being provided for forcing the bentover part of the plate toward the body thereof for taking up the play in the'shaft. a rocker mounted on said plate between said escapement wheel and said spring. and having dog devices to cooperate with said escapement wheel, and an arm pivoted; upon said plate in position to carry a back-spacing dog into engagement with said escape ment wheel.
  • a unit of carriage-controlling mechanism for attachment to a typewriting machine comprising a sheet-metal plate having at one end a carriage-drixing spring, and having at the other end an escapement wheel and punch, sa d other end helng bent over to confine the wheel and pinion, the
  • a unit of .carriage-controlling mechaanism for attachment to a typewriting' machine comprising a sheet-metal plate having at one end a cairiagedriving spring, and having at the other end an escapement wheel and pinion, said other end being bent over to confinethe wheel and pinion,
  • A. unit of carriage-controlling mechanism for attachment to a typewriting machine comprising a sheetmetal plate hav ing at one end-a carriagedriving spring. and having at the other end an escapeinent wheel and pinion. said other end beingbeut over to confine the wheel and pinion, the wheel and pinion mounted upon a shaft.
  • means being; provided for forcing the bentover part of the plate toward-the-body thereof for taking" up the-plavin the shaft, and a rocker mounted on said plate between said. escapement wheel. and said spring, said rocker having); at one end a dog device to coiiperate with the teeth oi? said escapement wheel.
  • a unit oi carriage-controlling mechanism for attachment to a typewritinp; machine, comprising a sheet-metal plate having an escapement wheel and pinion. the wheel and pinion mounted upon a shaft, and said plate being bent over to confine said wheel, ball-bearing. devices being proing an escapenient wheel and pinion, the
  • balLb'earing devices being provided 111 said plate for the ends of the shaft, means being provlded for springing or forcingsaid bent over partof the plate for taking-up the play in the ball-bearings, and an esoapenient dog rocker mounted on said plate, and having dog devices to cooperate with said escap'enient wheel, said plate havingioppo'site ears between whioh said rocker is confined and in which itispivotally supported.
  • a sheet-metal plate having at one end a bearing for a carriage-driving spring, and having at the other end'bearings for an escapenient wheel and pinion, said other end being bent over to inclose the wheel and pinion, means being. provided for forcing the bent-over part of the plate for taking up the play in the, wheel boa-thigs, and a dogrooker, said plate also having opposite bent ears between which said rocker is confined and in which it is piv otally supported.
  • a sheet-metal plate havingat one end a bearingitor a carriage-oriving-spring, and having at the other end bearings for an eseap'eme'nt wheel and pinion said other end being bent over to inclose the wheel and pinion, means being; provided for foreing the' bentfover part oi? the plate for taking: up the p'layi-ntlie wheel bearings, and a dog: rocker, said o'late also havingopposite bent ealsfbetwe'en which saidrocker is confined and in ,whie hI it" is pivotally.
  • A. unit of JZLlIllZlQCrCUIlill'Olllllg mechanism for attachment to a ty nzwriting nrw chine comprising n a sheet-meta l plate having at one end a carriage-driving spring. and having at the othrr end an cscapciucnt wheel and pinion, a rocker mounted on said plate between i id cscapeinont wheel and said spring.
  • i unit o'l carriage-controlling mechanism for attachment to a typewriting inaohine, (Jenn -rising a metal plate havingat one end a carriagddriving spring barrel, and h; at the other end an eseapeinent wheel and pinion, a rocker i'nounted on said plate letween said escapeinent wheel and said spring barrel and having dog devices to eeiiperate with said escapoment v hecl.
  • said barrel provided with a spring having an adjus' re; wheel, a pawl or dog to lock said adju 11;); wheel, a screw upon which said pawl pivoted.
  • said frame comprising; a. sheet-nwtal plate on edge and formed with a carriageguidingr rib at its upper edge, said unit being secured to said plate below said rib, and having a cut-away portion to aflord access to said unit.
  • saio unit plate having an outward bend to pass through an opening in said frame, to carry said spring-adjusting wheel on the outer side of saidease-shifting frame, and said screw passing through.
  • a sheet-metal struck-up case-shifting frame having a carriage-guiding rib, and having detachahlr secured upon its front face sheet-metal plate carrying a spring barrel.
  • an escapement wheel and pinion shaft and also carrying: a dog rocker for cooperation with said cseapeinent' wheel: said plate bent at one end to form supports: forthe ends of the escapement wheel shaft, and having ears bent over to afiord bearings for the do; rocker, and said ease-shifting frame having portions out away for access to said plate and parts carried thereby.
  • a sheet-metal struck-up case-shifting frame having dotachably secured upon its front face a unit comprising a sheet-metal plate earryin an. escapeinent wheel and pinio 1 13;, d a dog rocker for cooperation with said escapement Wheel; said plate bent to form supports fonthe escepeinent Wheel shaft, and having eels bent over to afford beerings for the dog rocker.

Landscapes

  • Character Spaces And Line Spaces In Printers (AREA)
  • Transmission Devices (AREA)
  • Handling Of Sheets (AREA)
US23863618 1918-06-07 1918-06-07 campbell Expired - Lifetime US1332972A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US23863618 US1332972A (en) 1918-06-07 1918-06-07 campbell
GB32727/19A GB158147A (en) 1918-06-07 1919-12-31 Improvements in paper carriage feed mechanism for typewriters
FR508367A FR508367A (fr) 1918-06-07 1920-01-13 Perfectionnements aux machines à écrire
DEW60619D DE397325C (de) 1918-06-07 1922-03-02 Hemmwerk fuer die Schlittenbewegung von Schreibmaschinen

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US23863618 US1332972A (en) 1918-06-07 1918-06-07 campbell
GB32727/19A GB158147A (en) 1918-06-07 1919-12-31 Improvements in paper carriage feed mechanism for typewriters
FR508367T 1920-01-13
DEW60619D DE397325C (de) 1918-06-07 1922-03-02 Hemmwerk fuer die Schlittenbewegung von Schreibmaschinen

Publications (1)

Publication Number Publication Date
US1332972A true US1332972A (en) 1920-03-09

Family

ID=26002985

Family Applications (1)

Application Number Title Priority Date Filing Date
US23863618 Expired - Lifetime US1332972A (en) 1918-06-07 1918-06-07 campbell

Country Status (4)

Country Link
US (1) US1332972A (fr)
DE (1) DE397325C (fr)
FR (1) FR508367A (fr)
GB (1) GB158147A (fr)

Also Published As

Publication number Publication date
DE397325C (de) 1924-06-24
GB158147A (en) 1921-02-03
FR508367A (fr) 1920-10-08

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