US2369315A - Typewriting machine - Google Patents

Typewriting machine Download PDF

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Publication number
US2369315A
US2369315A US445732A US44573242A US2369315A US 2369315 A US2369315 A US 2369315A US 445732 A US445732 A US 445732A US 44573242 A US44573242 A US 44573242A US 2369315 A US2369315 A US 2369315A
Authority
US
United States
Prior art keywords
typing
ribbon
settable
bar
adjustable
Prior art date
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
Application number
US445732A
Other languages
English (en)
Inventor
Walter T Sagner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Underwood Elliott Fisher Co
Original Assignee
Underwood Elliott Fisher Co
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.)
Filing date
Publication date
Priority to BE471285D priority Critical patent/BE471285A/xx
Application filed by Underwood Elliott Fisher Co filed Critical Underwood Elliott Fisher Co
Priority to US445732A priority patent/US2369315A/en
Application granted granted Critical
Publication of US2369315A publication Critical patent/US2369315A/en
Priority to FR925291D priority patent/FR925291A/fr
Priority to CH266386D priority patent/CH266386A/fr
Priority to DEU758A priority patent/DE865316C/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
    • B41J35/00—Other apparatus or arrangements associated with, or incorporated in, ink-ribbon mechanisms
    • B41J35/04—Ink-ribbon guides
    • B41J35/10—Vibrator mechanisms; Driving gear therefor
    • B41J35/12—Vibrator mechanisms; Driving gear therefor adjustable, e.g. for case shift
    • B41J35/14—Vibrator mechanisms; Driving gear therefor adjustable, e.g. for case shift for multicolour work; for ensuring maximum life of ink ribbon; for rendering ink-ribbon inoperative
    • 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
    • B41J7/00—Type-selecting or type-actuating mechanisms
    • B41J7/92—Impact adjustment; Means to give uniformity of impression

Definitions

  • the ribable stencils have cardboard portion-s which, us-
  • Still another object of the invention is to provide for efficient regulation of the typing force under the control of the ribbon-vibration-setting mechanism in a manner so that the typing force is properly varied for stencil writing in accordance with whether or not, or to what extent, the ribbon is vibrated.
  • an object of the invention is to provide for typing force vibrations under the combined control of a main imprint controlling mechanism and a ribbon-vibration regulating mechanism of the character pointed out in the last-mentioned object, the two mechanisms being individually settable and the printing-force adjustments obtainable by each altering with respect to each other.
  • Figure 1 is a front perspective illustrating certain portions of a power typing mechanism and devices for regulating the imprint obtainable by such typing mechanism;
  • FIG. 1 is a large front elevation of a camming mechanism shown in Figure -1;
  • Figure 3 is a right-hand fractionalside elevationof the imprint-regulating mechanism as it is conditioned when the ribbon-vibrating mechanism is set for maximum vibration;
  • Figure 4 shows the power typing mechanism of Figure 1 in sectional side elevation, there being also shown certain of the parts of the imprintregulating devices;
  • Figure 5 illustrates an alternate form of an interponent member comprising part of the'imprint-regulating devices.
  • Type bars l0 pivoted in an arcuate array upon a pivot wire I I in a segment l9, are movable against a platen H from a type rest l3 upon which they are normally nested.
  • 5 are'individually connected at their upper ends with the type bars ID by draw links l6.
  • each lever l4 for operating it in rolling engagement therewith, is a pendent arm I] which has articulated thereto, in a rearwardly extending relation,an actuator I8, each actuator having a snatch pawl 2
  • a cross bar 23 is provided with vertical slots wherein the said arms H are guided.
  • the drive member 22 is in the form of a toothed snatch roll, and the actuators I8, together with the snatch pawls 2
  • the said actuators l8 are selectively associable with said snatch roll 22 for operation thereby under control of type keys 21, each of which key is provided upon a key lever 28, and each of which key lever has a hook-ended draw link 3
  • the duration of engagement of the snatch pawl with the snatch roll and, consequently, the effective strength of the operating impulse imparted to the typing mechanism by the actuator is determined by the position of an abutment bar 35 which has adtion and combination of elements which are set iustable abutment screws 36, with which cam edges 3! of the actuators engage.
  • the rear end of the associated actuator is cammed upwardly so that the snatch pawl 2
  • thelever H, the link I6, and the type bar l8 continue to move by momentum; while, on the other hand, the rolling contact between the lever l4 and the arms I! allows the return of the actuator l8 under the power of its return spring 24.
  • the abutment bar 35 is adjusted so that the snatch pawl 2
  • the abutment bar 35 is supported on two widely spaced bell cranks 38, both of which are pivoted for movement in a vertical plane on the same rod 5 on which the typeaction levers M are pivoted.
  • wherein the pivot rod I5 is imbedded, has guide slots 42 for the type-action levers M, as well as for the bell crank levers 38.
  • the abutment bar 35 forms with the bell cranks 38 a single bail structure and that this structure is pivotally swingable on the rod 5.
  • , as also the cross bar 23, comprises part of a general machine frame which also includes two opposite side walls 43.
  • a rotatable shaft 44 Pivoted in these side walls and extending intermediate thereof, directly behind the keyboard, is a rotatable shaft 44 whereon there are fixed two widely spaced spiral-shaped cams 45.
  • Each of the bell cranks 38 has a pin 46 which extends laterally underneath one of the cams 45, there being a vertically freely swingable interponent finger of these fingers will be set forth later.
  • constituting a main imprint control, is fixedly carried by the right end of the cam shaft 44 and, when turned, results in an upward or downward adjustment of the abutment bar 35.
  • protrudes through a rectangular opening 52 provided in a front panel 53 of the machine and bears indicia 54 which is indicative of the adjustment effected to the abutment bar.
  • the printing point, against which the type bars l8 strike, is indicated in Figures 1 and 4 by the reference numeral 56.
  • a ribbon vibrator or holder 51 holding a typewriter ribbon 58 removed from the printing point.
  • the ribbon 58 which, as shown in Figures 1 and 4, may have a plurality of color-fields 6
  • the vibrator 51 may be integral with a horizontally disposed arm 63 forming part of a bell crank 64 pivoted at 65 to the framework of the machine.
  • the bell crank 64 is operated in a manner presently to be described.
  • Overlyingshort rearward arms 68 of the levers I4 is a universal bar 61 common to all the type actions.
  • This universalbar has at each end rigid therewith a rearwardly extending arm 88 about the rear ends of which the universal bar pivots, the right arm having a shaft ii fulcrumed and extending through the side wall 58.
  • To the outer end of the shaft H is fixed a bell crank 13 having a link connection 14 with an arm 18 pivoted to the outer side of the right side wall 48 of the machine.
  • the link 14 and the arm of the bell crank 13 connected thereto constitute a toggle which normally is in a partly folded condition.
  • the toggle becomes straightened and, in doing so, swings the arm 15 downwardly so that the latter imparts a downward movement of a definite extent to a pitman 18 which is articulated to its rear end.
  • the link 14 may have a tongue 11 capable of engagement with a pin 19 on the bell crank 18.
  • Restoration of the universal bar is effected by a spring 18 connected to the pitman 10, see Figure 1.
  • the pitman 16 may be in coupled engagement with either one of two pins 8
  • are differently spaced from a pivot 83 of the bell crank 82, and the pitman, therefore, is capable of imparting different angular movement to the bell crank '82, depending onto which of the pins 8
  • a link B l connects the bell crank 82 operatively with the bell crank 64. and when the pitman 18 is coupled with the particular pin M which is further from the pivot 83, the actuation of the universal bar causes an operation of said vibrator or holder 51 to an ex-- tent presenting the upper ribbon field 8i, which may be black to the printing point 56.
  • the pitman 16 when the pitman 16 is coupled to the pin M which is nearer to the pivot 83, the throw iven to the vibrator 51 will be such that the lower ribbon field GI, which may be red, will be presented at the printing point.
  • the said crank 80 extends into a vertical guide slot 86 provided in the upper end of the pitman 16 and is settable to the right or left to couple the pitman selectively to the pins BI. In a central or stencil position of the crank, the pitman clears both the pins 8
  • the crank 80 comprises part of a crank shaft 81 which extends fore and aft in the machine and which, at opposite ends, near the crank 80, and at the front, respectively is turnable in brackets 88 and 9
  • the shaft 92 protrudes through a hole in the front panel 53 and is equipped with a control or setting knob 96.
  • a pawl 91 cooperating with a notched disc 98 on the shaft 92 detents the latter in three different positions which correspond to the aforementioned three different positions of the crank 80, the pawl 81 being pivoted on a bracket I02 projecting inwardly from the adjacent side wall 43 and being under constant tension of a spring IOI to enter the notches of the disc 98.
  • the gear 93 has two stop teeth I03which are adapted for engagement with a flat face I04 on the other gear 94. From the fore going, it will be seen that turning of the knob 86 to the proper position predetermines whether or not, and to what extent, the ribbon shall be vibrated during typing.
  • the ribbonvibrating mechanism imposes a heavier load on the typing mechanism when the extent of ribbon vibration is greater, the consequence being an influence on the typing mechanism.
  • the mechanism for shifting the fingers comprises a bail generally designated by the numeral I01 and extending transversely of the machine,
  • the bail I01 comprises also a shaft III extending intermediate and pivoted in the opposite side walls 4'8 of the machine, the arms I08 being fixed thereto.
  • machine is part of a bell crank which also includes a rearwardly extending arm I I2, the latter of which has a vertical link connection H0 with a member H3 vertically rockably supported on an ear I I4 bent outwardly from the adjacent wall 43.
  • the shaft 92 has a cam H5 which, on opposite sides, is engaged .by pins I I 6 carried on the member.
  • the cam H5 gives the member [I3 2.
  • each finger 41 When in their intermediate positions, each finger has a portion H1 inter osed between its associated cam 45 and n-in 4 and, according to the form of the invention illu trated in Fi ures 1, 3, and 4, these fingerportions I I1 are thicker than the aforementioned portions I05 and I08.
  • the power operation of the type bar I may be to any one of the designated positions S, B, or R, see Figure 3, depending on respectively corresponding settings of the knob 06.
  • the interponent fingers ll are beveled intermediate the said portions I05, I06, Ill, so that they are easily slidable to their different positions over the pins 46.
  • the differences in the thicknesses of the finger portions are, of course, such that the de-- sired power impulse will be imparted to the typing mechanism in each set position of the knob" 96.
  • the interponent fingers are capable of effecting a change in the position of the abutment bar in any angular position of the cam shaft M, that is, in any position of the main imprint control or dial wheel SI; and, conversely, the dial wheel Si is operative to effect a change in the position of the abutment bar rega'rdless of the positions of the interponent fingers 41.
  • the adjustments of the abutment bar 35 effected by the dial wheel and the knob 90 might be regarded as additive or supplemental in nature.
  • the fingers 41 have upward extensions I2I swingably confined between the arms I08 and lips I22 offset therefrom.
  • the fingers 41 are pivotally secured to the arms I08 by screws; and if the work requires, other fingers with relatively differently proportioned thickness portions I05, I06, and II! may be substituted. Such a substitution may be required I or desirable in view of the difiering characteristics of stencils that are commercially available, or it may be desirable due to other conditions, such as the desire for a lesser or harder impressed stencil. For writing some stencils. see Figure 5.
  • the portions III of the fin ers may be identical in thickness with the portions I05, while for ther work the portions I05 and I06 may be relativelv different. In other words, the fingers may be shaped in accordance with the particular reoplanetaryments of different work.
  • type actions normally disassociated from sa d power means, means to associate said type actions selectively with said power means in a manner to cause the selected type action to receive an operating impulse from the power means, and means whereby to vary the operating impulse receivable by said typing means, comprising, a pivotally adjustable member, manually settable cam means, means rendering said member pivotally adjustable by said cam means, including actions selectively with said power means in a manner to cause a desired type action to receive an operating impulse from the power means, and means whereby to vary the operating impulse receivable by said typing means, comprising, an elongate member adjustable transversely of its length, adjustably settable means extending substantially parallelly to said elongate member, expansible and contractible means connecting said elongate member at widely spaced points with said settable means for adjustment thereby independently of adjusting said settable means, and means to expand or contract said connecting means.
  • typing means normally disassociated from said power-drive means, means to associate said typing means operatively with said power-drive means, in a manner to cause the latter to impart an operating impulse to said typing means, adjustable means whereby to vary said operating impulse, ribbon-vibrator means, normally holding a typewriter ribbon removed from a printing point, means adapted to operate said vibrator means incidental to each operation of said typing means, and means differently settable to predetermine whether or not said operating means shall operat said vibrator means, and, additionally, to adjust said adjustable means in a manner so that the operating impulse impartable to said typing means is different when said settable means is set for non-operation of said vibrator means than when it is set for operation thereof.
  • typing means operable to effect imprints at a printing point, normally disassociated from said typing means, means to associate said typing means operatively with saidpower means, in a manner to cause the latter to impart an operating impulse to said typing means, adjustable means whereby to vary the operating impulse, means normally holding a typewriter ribbon removed from said printing point, means adapted to operate said vibrator means incidental to each operation of said typing means, means differently settable to predetermine whether or not, and to what extent, said operating means shall operate said vibrating means, a settable imprint control, and means so operatively associating able aggregatively by said imprint control and said settable means, and in such a manner that in every setting of said imprint control the operating impulse impartable to the typing means will be of minimum strength when said setting means is set for nonoperation of said vibrating means.
  • a power-driven typewriting machine the combination with a series of type actions operable to effect imprints at a printing point; of a power-drive member, an actuator associated with each type action and engageable with said powerdrive member for operation of its associated type action, means to selectively engage said actuators with said drive member, adjustable means in the path of said actuators engageable to efiect their disengagement after partial operation of each type-action, each operated type action completing its operation by momentum, means adapted to vibrate a typewriter ribbon to said printing point whenever an actuator is actuated, means yieldinglysettable todiiferent positions to vary the magnitude of said vibration to present different portions of the ribbon to the printing point, an imprint regulating control, means associating said control and said settable means with each other and the adjustable means in a manner so that the latter is.adjustable by either said conits operation by momentum, means adapted to vibrate a typewriter ribbon to said printing point whenever an actuator is actuated, means yieldingly settable to different positions to vary the
  • a power-driven typewriting machine the combination with a series of type actions operable to eflect imprints at a printing point; of a power-drive member, an actuator associated with each type action and engageable with said power-drive member for operation of its associated type action, means to selectively engage trol or said settable means and so that the adeach type action and engageable with said powerdrive member for operation of its associated type action, means to selectively engage said actuators with said drive member, adjustable means in the path of said actuators engageable to effect their disengagement after partial operation of each type action, each operated type action completing said actuators with said drive member, adjustable means in the path of said actuators engageable to efiect their disengagement after partial operation of each type action, each operated type action completing its operation by momentum, means adapted to vibrate a typewriter ribbon to said printing point whenever an actuator is operated, means yieldingly settable to effectively or inefiectively condition said vibrating means, an imprint regulating control, means associatin said control and said set

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  • Impression-Transfer Materials And Handling Thereof (AREA)
US445732A 1942-06-04 1942-06-04 Typewriting machine Expired - Lifetime US2369315A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
BE471285D BE471285A (enrdf_load_stackoverflow) 1942-06-04
US445732A US2369315A (en) 1942-06-04 1942-06-04 Typewriting machine
FR925291D FR925291A (fr) 1942-06-04 1946-04-06 Dispositif régulateur de la puissance de frappe pour machines à écrire actionnées par force motrice
CH266386D CH266386A (fr) 1942-06-04 1946-12-28 Machine à écrire à moteur.
DEU758A DE865316C (de) 1942-06-04 1950-09-29 Einstellvorrichtung fuer die Typenhebelanschlagskraft und den Farbbandgabelhub an kraftangetriebenen Schreibmaschinen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US445732A US2369315A (en) 1942-06-04 1942-06-04 Typewriting machine

Publications (1)

Publication Number Publication Date
US2369315A true US2369315A (en) 1945-02-13

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ID=23769993

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Application Number Title Priority Date Filing Date
US445732A Expired - Lifetime US2369315A (en) 1942-06-04 1942-06-04 Typewriting machine

Country Status (5)

Country Link
US (1) US2369315A (enrdf_load_stackoverflow)
BE (1) BE471285A (enrdf_load_stackoverflow)
CH (1) CH266386A (enrdf_load_stackoverflow)
DE (1) DE865316C (enrdf_load_stackoverflow)
FR (1) FR925291A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3204746A (en) * 1963-08-23 1965-09-07 Wolowitz William Howard Typewriter with error-correction features

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1153776B (de) * 1957-02-04 1963-09-05 Walter Juelich Antriebsvorrichtung fuer die Farbbandgabel einer Schreib- oder aehnlichen Maschine
DE1102773B (de) * 1957-11-14 1961-03-23 Olympia Werke Ag Schalteinrichtung fuer die Anschlagstaerkenregulierung bzw. die Farbbandzoneneinstellung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3204746A (en) * 1963-08-23 1965-09-07 Wolowitz William Howard Typewriter with error-correction features

Also Published As

Publication number Publication date
BE471285A (enrdf_load_stackoverflow)
FR925291A (fr) 1947-08-29
DE865316C (de) 1953-02-02
CH266386A (fr) 1950-01-31

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