US2805115A - Paper feed mechanism - Google Patents

Paper feed mechanism Download PDF

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Publication number
US2805115A
US2805115A US420367A US42036754A US2805115A US 2805115 A US2805115 A US 2805115A US 420367 A US420367 A US 420367A US 42036754 A US42036754 A US 42036754A US 2805115 A US2805115 A US 2805115A
Authority
US
United States
Prior art keywords
paper
roll
message
sector
gear
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
US420367A
Other languages
English (en)
Inventor
Archie S Hill
Douglas M Zabriskie
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.)
Western Union Telegraph Co
Original Assignee
Western Union Telegraph 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 BE537006D priority Critical patent/BE537006A/xx
Application filed by Western Union Telegraph Co filed Critical Western Union Telegraph Co
Priority to US420367A priority patent/US2805115A/en
Priority to GB8856/55A priority patent/GB766108A/en
Priority to FR1127039D priority patent/FR1127039A/fr
Priority to DEI10048A priority patent/DE1006008B/de
Application granted granted Critical
Publication of US2805115A publication Critical patent/US2805115A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/00567—Handling of original or reproduction media, e.g. cutting, separating, stacking
    • H04N1/0057—Conveying sheets before or after scanning
    • H04N1/00588—Conveying sheets before or after scanning to the scanning position
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03D—APPARATUS FOR PROCESSING EXPOSED PHOTOGRAPHIC MATERIALS; ACCESSORIES THEREFOR
    • G03D13/00—Processing apparatus or accessories therefor, not covered by groups G11B3/00 - G11B11/00
    • G03D13/003—Film feed or extraction in development apparatus
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/00567—Handling of original or reproduction media, e.g. cutting, separating, stacking
    • H04N1/0057—Conveying sheets before or after scanning
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/00567—Handling of original or reproduction media, e.g. cutting, separating, stacking
    • H04N1/00665—Details specific to handling of web-shaped media, e.g. paper or film rolls
    • H04N1/00668—Removing the medium from a cassette, spindle or the like

Definitions

  • This invention relates to the art of recording facsimile transmissions by means of equipment for marking on a paper sheet, and more particularly to equipment of the kind in which such paper sheet is adapted for full width message recording.
  • Page recorders employing a rapidly moving stylus which scans across the page repetitively while the paper is slowly advanced beneath the stylus have been described in Patent No. 2,639,211, issued May 19, 1953, to F. G. Hallden et al., and are widely used in the communications art.
  • Still another object of the present invention is to enable a smaller number of central office recording machines to accommodate a given number of patrons lines by increasing the proportion of machine operating time during which recording is accomplished.
  • Fig. 1 is a perspective view of a portion of a facsimile recorder, equipped with the apparatus of the instant invention
  • FIG. 2 is a front elevation of the instant invention in place on a recorder
  • Fig. 3 is a side view of Fig. 2 having a portion broken away;
  • Fig. 4 is a view of Fig. 3 shown in a different phase of its cycle of operation.
  • FIG. 1 depicts the paper feed mechanism of a facsimile page recorder of a type in common use, equipped with the mechanism of the present invention.
  • a roll 1 of electrographic paper is mounted on brackets such as 2, which are fastened to the frame 3, in such a manner as to permit free rotation thereof, and the ready replacement of a depleted roll.
  • Paper 4 passes downward through opening 5 in the base of the machine, guided by the curved chute 6, and emerges upwardly over the roll 8 to pass between the back plate 11 and the front platen plate 12 and thence behind the beveled straight edge 14, between which latter it is subjected to the writing action of a set of horizontally moving styluses as shown in the aforesaid patent.
  • the paper is thus fed upward past the writing zone by the slow rotation of roll 8 caused by a motor and one-way clutch (not shown) against which roll the idler roll 7 is spring-pressed to provide traction.
  • the shaft 9 of roll 8 is journalled in the frame casing 3 and is provided with a sprocket 15 afiixed thereto and connected by means of a ladder chain 16 to a sprocket 17 on a shaft 18 which is similarly mounted.
  • the shaft 18 also has aflixed to it a gear sector 19, as may be seen more clearly in Fig. 3.
  • a yoke 21 having an operating handle 26 is pivotally mounted on a shoulder screw 25 secured in the frame casting 3. It is normally retained in a rearward position by the tension of a coil spring 23 connected to it and operating against a stud 24 in the frame casting 3.
  • a block 28 of relatively soft material having a high coefficient of friction, such as linen-filled Bakelite, is afiixed to the said yoke in such position as to engage the knurled cylinder 31, seen in Fig. 2, with its friction surface 29 when the handle 26 is pulled forward, and thereby to act as a stop to the forward motion of yoke 21, and simultaneously as a brake to prevent further rotation of the cylinder 31, and consequently of the roll 8.
  • This is desirable in order to prevent spinning of the roll 8, which would otherwise occur if the handle 26 were pulled violently, and which would thus cause the feeding out of an extra and undesired length of paper unless so checked.
  • Fig. 4 is shown the mechanism of Fig. 3 in the position assumed after the recording of part of a facsimile message.
  • the yoke 21 rests against knurled screw 22 and sector gear 19 assumes the position shown in Fig. 3.
  • sector gear 19 rotates until its first tooth 19 engages segment 27, at which time yoke 21 begins to advance against the tension of spring 23.
  • the initial portion of the facsimile record comprises margin, heading and message identification data, all of which are present in every transmission and which are received during the interval before tooth 19' engages segment 27.
  • the reception of further message signals is concurrent with the further rotation of sector 19 and consequent advancement of yoke 21.
  • the handle 26 is pulled forward until block 28 engages knurled cylinder 31, and the message is torn off against straight edge 14. Pulling handle 26 causes the immediate rotation of sector 19 to a position where the last gear tooth thereof becomes disengaged from segment 27, thus freeing the yoke for return to the rearward position by spring 23 when pressure is removed from the handle 26.
  • a cam operated switch associated therewith which is not shown on the drawings but is disclosed in the aforesaid Hallden et al. patent, is effective to open the circuit to the paper .feed motor, thus placing the recorder in a standby condition until the arrival of another facsimile-transmission.
  • the handle therefore indicates by its position whether or not the recorder is in a portion of its cycle where complementary feedout 'of paper is possible, and if not, it requires no closer .inspection at that time, but may be ignored until adiiferent indication is obtained. It is thus unnecessary to make a close inspection of .the machine to determine whether any attention is required, as this can be seen from a considerable distance by observing the position of handle '26.
  • a continuous facsimile recorder means for supporting a roll of recording paper, a forwardly free-wheeling paper feed roll for advancing said recording paper through a recording zone for a vpredetermined distance,
  • gear sector means mounted for rotation in step with the said feed roller at all times, means to connect the said gear sector means to the feed roller for rotation in step therewith, a manually swingable lever pivotally afiixed adjacent the'said gear sector means and having a retracted position and an advanced position, a gear segment affixed to the said lever for engagement in the retracted position by the said gear sector means only after a predetermined portion of a'revolution thereof, and means for repositioning said lever to the retracted position.
  • gear sector means mounted for rotation in step with the said feed roller,.means to connect the said gear sector means to the feed roller for rotation in step therewith at all times, a manually swingable lever pivotally aifixed adjacent the said gear sector means and having a retracted position and an advanced position, a gear segment aifixed to the said lever for engagement in the retracted position by the said gear sector means only after a predetermined portion of arevolution thereof, means comprising a block of friction material secured to the said lever for braking engage-- ment with said driving machinery in the advancedposition, only after disengagement of the said gear sector means from the said gear segment, and means for repositioning said lever to the retracted position.

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Facsimiles In General (AREA)
US420367A 1954-04-01 1954-04-01 Paper feed mechanism Expired - Lifetime US2805115A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
BE537006D BE537006A (enrdf_load_stackoverflow) 1954-04-01
US420367A US2805115A (en) 1954-04-01 1954-04-01 Paper feed mechanism
GB8856/55A GB766108A (en) 1954-04-01 1955-03-25 Improvements in or relating to facsimile recording apparatus
FR1127039D FR1127039A (fr) 1954-04-01 1955-03-31 Mécanisme débiteur de papier pour appareil de fac-similé
DEI10048A DE1006008B (de) 1954-04-01 1955-04-01 Vorrichtung zum Vorschub eines Aufzeichnungstraegers in Faksimileblattschreibgeraeten

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US420367A US2805115A (en) 1954-04-01 1954-04-01 Paper feed mechanism

Publications (1)

Publication Number Publication Date
US2805115A true US2805115A (en) 1957-09-03

Family

ID=23666177

Family Applications (1)

Application Number Title Priority Date Filing Date
US420367A Expired - Lifetime US2805115A (en) 1954-04-01 1954-04-01 Paper feed mechanism

Country Status (5)

Country Link
US (1) US2805115A (enrdf_load_stackoverflow)
BE (1) BE537006A (enrdf_load_stackoverflow)
DE (1) DE1006008B (enrdf_load_stackoverflow)
FR (1) FR1127039A (enrdf_load_stackoverflow)
GB (1) GB766108A (enrdf_load_stackoverflow)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD357033S (en) 1992-03-26 1995-04-04 Sandco, Inc. Pawl and ratchet for aligning continuous feed paper in a printer and embosser
USD347240S (en) 1992-06-26 1994-05-24 Sandco, Inc. Pawl and ratchet for aligning continuous feed paper in a printer and embosser
US9616785B2 (en) * 2014-01-09 2017-04-11 PAC Seating Systems, Inc. Infinitely vertically adjustable drop down armrest mechanism

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1113103A (en) * 1911-04-25 1914-10-06 Underwood Typewriter Co Type-writing machine.
US1220148A (en) * 1914-03-27 1917-03-20 Underwood Typewriter Co Type-writing machine.
US2391765A (en) * 1942-09-21 1945-12-25 Rca Corp Facsimile apparatus
US2639211A (en) * 1949-03-25 1953-05-19 Western Union Telegraph Co Multistylus facsimile machine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1113103A (en) * 1911-04-25 1914-10-06 Underwood Typewriter Co Type-writing machine.
US1220148A (en) * 1914-03-27 1917-03-20 Underwood Typewriter Co Type-writing machine.
US2391765A (en) * 1942-09-21 1945-12-25 Rca Corp Facsimile apparatus
US2639211A (en) * 1949-03-25 1953-05-19 Western Union Telegraph Co Multistylus facsimile machine

Also Published As

Publication number Publication date
DE1006008B (de) 1957-04-11
FR1127039A (fr) 1956-12-06
BE537006A (enrdf_load_stackoverflow)
GB766108A (en) 1957-01-16

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