US3005534A - Paper positioning means for business machines - Google Patents

Paper positioning means for business machines Download PDF

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Publication number
US3005534A
US3005534A US819636A US81963659A US3005534A US 3005534 A US3005534 A US 3005534A US 819636 A US819636 A US 819636A US 81963659 A US81963659 A US 81963659A US 3005534 A US3005534 A US 3005534A
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US
United States
Prior art keywords
platen
pawl
slide
gear
movement
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
US819636A
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English (en)
Inventor
John C Morris
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.)
Unisys Corp
Original Assignee
Sperry Rand Corp
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 NL267202D priority Critical patent/NL267202A/xx
Application filed by Sperry Rand Corp filed Critical Sperry Rand Corp
Priority to US819636A priority patent/US3005534A/en
Priority to BE605233A priority patent/BE605233A/fr
Priority claimed from FR867465A external-priority patent/FR1300989A/fr
Priority to FR867465A priority patent/FR1300989A/fr
Priority to CH1089461A priority patent/CH396956A/it
Priority claimed from CH1089461A external-priority patent/CH396956A/it
Priority to GB13378/62A priority patent/GB958053A/en
Priority to GB34664/61A priority patent/GB958052A/en
Priority claimed from GB34664/61A external-priority patent/GB958052A/en
Publication of US3005534A publication Critical patent/US3005534A/en
Application granted granted Critical
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
    • B41J11/00—Devices or arrangements  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
    • B41J11/36—Blanking or long feeds; Feeding to a particular line, e.g. by rotation of platen or feed roller
    • B41J11/38—Manually-operated feeding devices

Definitions

  • the invention more particularly relates to platen rotating mechanism which may be operated automatically to effect a variable number of line space intervals and a platen rotating mechanism which may be operated manually to eifect a 'predeter mined number of line space intervals.
  • the mechanism herein disclosed transcends those problems set forth above and will simplify the operation of machines so equipped. Certain standard operations, such as the typing of forms with a typewriter, will also be simplified.
  • a bill form for instance, may be inserted in a typewriter and brought to the correct predetermined position by the manual mechanism disclosed herein and then the automatic mechanism will eifect consecutive line spacing as required.
  • the manual mechanism can then advance the form, where a continuous form is being used, to the predetermined position for the first line of typing on the next form. If separate form sheets are being used.
  • the manual mechanism will assure that all forms will be brought to a uniform position to accept the first line of typing.
  • the automatic mechanism can be used in business machines such as calculators and adding machines to vary the number of blank lines between each line of printing.
  • the manual mechanism could there be used to assure a large space between groups of printing if so desired.
  • FIG. 1 is a front elevational view of an embodiment of the invention, showing an automatic platen spacing mechanism, a left side portion of a typewriter platen, and a portion of the side frame,
  • FIG. 2 is a side elevational view, looking in the direction of arrows 22 of FIG. 1, showing the platen rotating mechanism in position for indexing one line space upon carriage return,
  • FIG. 3 is a partial side elevational view, looking in the direction of arrows '33 of FIG. 1, showing the platen rotating mechanism in position for indexing three line spaces upon carriage return,
  • FIG. 4 is a side elevational View similar to FIG. 3, and showing the platen rotating mechanism during the cycle of indexing one line space, V
  • FIG. 5 is a front elevational view of an embodiment of the invention, showing a'manual platen spa'cingmechanism, a right side portion of a typewriter platen, and a portion of the side frame,
  • FIG. 6 is a side elevational view, looking in the direction of arrows 66 of FIG. 5, showing the platen rotating mechanism in its normal, non-operating position,
  • FIG. 7' is a side elevational view, looking in the direction of arrows 7-7 of FIG. 5, showing the platen rotating mechanism during the operating cycle of indexing the platen through a multiple of line spaces, 7
  • FIG. 8 is a face view of a portion of the platen driving mechanism shown in non-operating position, 2
  • FIG. 9 is a view similar to FIG. 8 showing the mechanlsm in operating position.
  • FIG. 10 is a section on the line 10-10, of FIG. 9, showing the relation of the parts and connections therebetween. V
  • the platen shaft 12 extending from the platen 11, is rotatably journaled in the left side frame 13 and the right side frame 16 (FIG. 5) of the carriage (not shown) in such a manner that platen llmay be easily removed.
  • the knobs 14 and 17 are attached to the platen shaft 12 so that manual IO-, tation of the platen 11 may be effected by rotation of knob 14 or 17.
  • a line space ratchet 15 is mounted on the platen shaft 12 and rotates with platen 11 through a well known clutch mechanism (not shown).
  • FIG. 1 The entire line space mechanism of FIG. 1 is mounted on a plate side frame 13 by means of three mounting screws 21.
  • an end of a carriage return tape 25 is pivotally attached to the actuating arm 26 as at 27 and actuating arm 26 is mounted on plate 24 ⁇ so that said arm 26 may rotate about pivot 28.
  • the tape 25 passes over suitable rollers to abelt drum and clutch combination not illustrated here but fully disclosed in FIG. 3 of-Patent 2,874,
  • a vertically disposed actuating slide 20 which is removably attached to the leftv 30 is pivotally mounted at its lower end on the actuating arm 26 through a lower slide pin 31, which is free to slide in the lower slot 33 of the plate 20.
  • Attached in the upper end of the actuating slide 30 is the upper slide pin 32 which is free to slide in an upper slot 34 of plate 20.
  • Pivotally mounted on upper slide pin 32 is a pawl 35 having an engaging tooth 36 and a bearing arm 37.
  • a spring 38 connecting the actuating slide 30 and the pawl 35 exerts pressure to rotate pawl 35 in a counterclockwise direction (FIG. 2) causing the bearing arm 37 of pawl 35 to bear against an adjusting arm 39.
  • An adjusting lever 40 which is rotatably mounted on plate 2! ⁇ as at 41, limits the upward motion'of adjusting arm 39 by means of the adjusting lever stop 42.
  • the spring 43 yieldably maintains the adjusting arm 39 against the ad justing lever stop 42.
  • the teeth in the line space ratchet are so arranged that the distance between teeth constitutes the normal typewriter line space increment.
  • a detent roll 48 which is rotatably mounted on detent lever 49 by a pivot pin 47, is held in contact with the teeth of the line space ratchet 15 by a spring 50, the detent lever 49 being pivot-ally mounted on plate as at 28.
  • a detent release arm 51 is mounted on plate 20 pivotally as at 52 and at its lower finger portion 53 is provided with a cam having upper and lower detent seats 56 and 57, respectively.
  • the seat or notch 56 ils shallow enough to hold the roller 48 out of engagement with the teeth so that the operator can revolve the platen freely without having to hold the detent release arm 51 manually.
  • adjusting arm 39 has been set for a three increment movement of the platen, in which instance the slide has risen so that the pawl 35 engages the free end of the arm 39.
  • the increased distance the pawl 35 will travel downwardly over the amount shown in FIG. 2.
  • the adjusted position of the arm 39 determines the amount that the pawl 35 will travel in platen rotating action.
  • a mounting plate 62 (FIG. 6) is attached to the right side frame 16 (FIG. 5) by means of two attaching screws 63 in such a manner that said mounting plate 62 may be easily removed.
  • a platen rotating gear segment 64 having a lever end 65 and a stop pin 67 is rotatably mounted on the mounting plate 62 as at 66.
  • Also rotatably connected to mounting plate 62 at 66 is a throw adjusting, lever 70.
  • a throw adjusting stop 71 is pivotally mounted as at 72 on lever 7t! and connected by spring 73 to said throw adjusting lever.
  • the underside of the stop 71 is curved and provided with shallow teeth 75 to allow the stop to be readily slid in adjusting movement over the teeth 76 on the upper edge of the semicircular mounting plate 62, by operation of the throw adjusting lever 78.
  • the stop 71 is further provided with a cam end 77 over which the stop pin 67 rides to abut the stop edge 78 to prevent the stop 71 from riding out of the teeth 76 and thus provide an eiiective limit means for the throw of the gear segment 64 in platen operating movement.
  • a driven collar 80 is slidably mounted on platen shaft 12 and secured for rotation with the platen shaft 12 by a pin 31.
  • a drive gear 82 which meshes with the toothed edge of the platen rotating gear segment 64; idler gear 83 being adjacent thereto.
  • a semi-circulardrive dog 84 lies against the face of the gear 83 and is so positioned that the teeth 84A thereof can mesh with theteeth of the driven collar
  • the drive gear 82 is shaped to provide a sleeve portion 74 on which is mounted both a drive collar 89 and the idler gear 83, the collar being suitably fixed to the gear 82.
  • FIG. 6 the mechanism is shown in normal nonoperating position, the parts being so held under the force of a spring 93 acting between the mounting plate 62 and the gear segment 64.
  • the idler gear 83 is yieldably held. for movement by a drag pinion whose spring 92, mounted on a stud 94 supplies the drag necessary for the pinion 90.
  • the drag supplied by pinion 90 prevents idler gear 83 from rotating when rotation is manually imparted to the platen 11 through knob 14 or 17 or when rotation is imparted to said platen by action of the mechanism shown in FIGS. 1-4.
  • a platen frame In a business machine, in combination, a platen frame, a platen, a shaft for revolvably mounting the platen in the frame, a slotted mounting plate detachably secured to said frame slide means, pins in the; slide means engaging the slots of the mounting plate, actuating means for vertically reciprocating said slide means, ratchet wheel means associated with said platen for moving the latter in line spacing increments, a ratchet operating pawl pivotally mounted on one of said pins and biased for swinging movement for engagement with said ratchet wheel means, an adjusting arm pivoted to said mounting plate and biased for movement at its free end away from said pawl, and an adjusting lever for engagement with said adjusting arm at spaced points to hold the free end of the latter at different positions to limit the upward movement of said slide means and define the extent of ratchet wheel operation by said pawl in downward movement.
  • a platen frame in combination, a platen frame, a platen, a shaft for revolvably mounting the platen in the frame, a slotted mounting plate detachably Secured to said frame, slide means, pins in the slide means engaging the slots of the mounting plate, actuating means.
  • ratchet wheel means for vertically reciprocating said slide means, ratchet wheel means associated with said platen for moving the latter in line spacing increments, a ratchet operating pawl pivotally mounted on one of said pins and biased for swinging movement for engagement with said ratchet Wheel means, an adjusting arm pivoted to said plate and biased for movement at its free end away from said pawl, and an adjusting lever for engagement with said arm at spaced points to hold the free end of the latter at different positions to limit the upward movement of said slide means and define the extent of ratchet wheel operation by said pawl in downward movement, said adjusting arm coacting with said slide means for controlling the biasedv swinging movement of said pawl to engage said line space means during a downward movement of said pawl.
  • detent roller means for engaging the ratchet wheel means to hold the platen at selected line spacepositions
  • detent controlling means for holding the roller means in non-operating position
  • platen rotating means on said shaft including a sleeved driven gear means having a pin and slot connection to said shaft, drive gear means including an idler gear, a disk and a drive pawl, said disk and pawl being arranged in flanking relation to said idler gear, means for pivotally connecting the pawl at its opposite ends with said idler gear and said disk respectively, a drive gear connected to said disk and operable to initially engage the pawl with said driven gear means and to thereafter rotate said platen shaft through said driven gear means, and means for manually controlling the operation of said drive gear.
  • said means for manually controlling the operation of said drive gear includes a toothed mounting plate on said frame, segment gear means for operating said drive gear, and stop means adjustable on said mounting plate for limiting the operation of said segment gear means in rotating the platen to a selected position.
  • platen rotating means on said shaft including driven gear means secured to said shaft, drive gear means including an idler gear, a disk and a drive pawl, said disk and pawl being arranged in flanking relation to said idler gear, means for pivotally connecting the pawl at its opposite ends with said idler gear and said disk, respectively, a drive gear connected to said disk and .operable to initially engage the pawl with said driven gear means and thereafter rotate said platen shaft through said driven gear means, and adjustable means for manually controlling the operation of said drive gear to rotate the platen a predetermined extent.
  • said adjustable means includes a mounting plate having a serrated edge, a toothed throw adjusting stop means presenting a cam portion, a throw adjusting lever for slidably moving said stop means over the serrations of said mounting plate, segment gear means for operating the drive gear and stop pin means on said segment gear means for holding the teeth of the throw adjusting stop means in fixed engagement with the serrations of the mounting plate to provide an arresting means for said segment gear means.
  • platen rotating means for said shaft at opposite ends of the platen
  • one of said platen rotating means including vertically movable slide means, pawl means yieldably pivoted on said slide means, and adjusting means engaging said pawl means to control the pivotal movement thereof independently of the movement of said slide means, means for detachably mounting said rotating means on said frame, and means on one of said platen rotating means for detaining the platen at a definite position of rotation as afforded by either of said rotating means.

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US819636A 1959-06-11 1959-06-11 Paper positioning means for business machines Expired - Lifetime US3005534A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
NL267202D NL267202A (enrdf_load_stackoverflow) 1959-06-11
US819636A US3005534A (en) 1959-06-11 1959-06-11 Paper positioning means for business machines
BE605233A BE605233A (fr) 1959-06-11 1961-06-21 Dispositif de mise en position du papier dans des machines à écrire.
FR867465A FR1300989A (fr) 1959-06-11 1961-07-10 Dispositif pour le réglage de la position du papier dans les machines à écrire
CH1089461A CH396956A (it) 1959-06-11 1961-09-20 Dispositivo per l'avanzamento della carta in macchine scriventi per ufficio
GB13378/62A GB958053A (en) 1959-06-11 1961-09-27 Platen rotating mechanism for typewriters or like business machines
GB34664/61A GB958052A (en) 1959-06-11 1961-09-27 Improvements in line spacing mechanisms for typewriters and like business machines

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US819636A US3005534A (en) 1959-06-11 1959-06-11 Paper positioning means for business machines
FR867465A FR1300989A (fr) 1959-06-11 1961-07-10 Dispositif pour le réglage de la position du papier dans les machines à écrire
CH1089461A CH396956A (it) 1959-06-11 1961-09-20 Dispositivo per l'avanzamento della carta in macchine scriventi per ufficio
GB13378/62A GB958053A (en) 1959-06-11 1961-09-27 Platen rotating mechanism for typewriters or like business machines
GB34664/61A GB958052A (en) 1959-06-11 1961-09-27 Improvements in line spacing mechanisms for typewriters and like business machines

Publications (1)

Publication Number Publication Date
US3005534A true US3005534A (en) 1961-10-24

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Family Applications (1)

Application Number Title Priority Date Filing Date
US819636A Expired - Lifetime US3005534A (en) 1959-06-11 1959-06-11 Paper positioning means for business machines

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US (1) US3005534A (enrdf_load_stackoverflow)
GB (1) GB958053A (enrdf_load_stackoverflow)
NL (1) NL267202A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3362516A (en) * 1966-07-19 1968-01-09 Clary Corp Variable line spacing mechanism
DE1292672B (de) * 1962-06-01 1969-04-17 Sperry Rand Corp Vorrichtung zum Befoerdern von Schreibblaettern in Schreib- oder aehnlichen Maschinen

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US926572A (en) * 1906-04-14 1909-06-29 Harvey A Moyer Line-spacing mechanism for type-writing machines.
US1595985A (en) * 1926-01-12 1926-08-17 Remington Typewriter Co Typewriting machine
US1606362A (en) * 1925-03-14 1926-11-09 Remingtonnoiseless Typewriter Typewriting machine
US1691922A (en) * 1925-10-08 1928-11-20 Underwood Elliott Fisher Co Typewriting machine
US1957322A (en) * 1931-03-05 1934-05-01 Electromatic Typewriters Inc Typewriting machine
US2311227A (en) * 1941-08-20 1943-02-16 Royal Typewriter Co Inc Typewriting machine
US2331120A (en) * 1941-08-08 1943-10-05 L C Smith & Corona Typewriters Typewriting machine
US2887206A (en) * 1954-12-01 1959-05-19 Moore Business Forms Inc Vertical spacing device for typewriters or the like

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US926572A (en) * 1906-04-14 1909-06-29 Harvey A Moyer Line-spacing mechanism for type-writing machines.
US1606362A (en) * 1925-03-14 1926-11-09 Remingtonnoiseless Typewriter Typewriting machine
US1691922A (en) * 1925-10-08 1928-11-20 Underwood Elliott Fisher Co Typewriting machine
US1595985A (en) * 1926-01-12 1926-08-17 Remington Typewriter Co Typewriting machine
US1957322A (en) * 1931-03-05 1934-05-01 Electromatic Typewriters Inc Typewriting machine
US2331120A (en) * 1941-08-08 1943-10-05 L C Smith & Corona Typewriters Typewriting machine
US2311227A (en) * 1941-08-20 1943-02-16 Royal Typewriter Co Inc Typewriting machine
US2887206A (en) * 1954-12-01 1959-05-19 Moore Business Forms Inc Vertical spacing device for typewriters or the like

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1292672B (de) * 1962-06-01 1969-04-17 Sperry Rand Corp Vorrichtung zum Befoerdern von Schreibblaettern in Schreib- oder aehnlichen Maschinen
US3362516A (en) * 1966-07-19 1968-01-09 Clary Corp Variable line spacing mechanism

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Publication number Publication date
GB958053A (en) 1964-05-13
NL267202A (enrdf_load_stackoverflow)

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