US3547536A - Projection printing apparatus - Google Patents

Projection printing apparatus Download PDF

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Publication number
US3547536A
US3547536A US737562A US3547536DA US3547536A US 3547536 A US3547536 A US 3547536A US 737562 A US737562 A US 737562A US 3547536D A US3547536D A US 3547536DA US 3547536 A US3547536 A US 3547536A
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US
United States
Prior art keywords
carriers
path
printing apparatus
guide
frame
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
US737562A
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English (en)
Inventor
Konrad Phelps
Gunther Schnall
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.)
Agfa Gevaert AG
Original Assignee
Agfa Gevaert AG
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 claimed from DE19671597056 external-priority patent/DE1597056A1/de
Application filed by Agfa Gevaert AG filed Critical Agfa Gevaert AG
Application granted granted Critical
Publication of US3547536A publication Critical patent/US3547536A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B27/00—Photographic printing apparatus
    • G03B27/32—Projection printing apparatus, e.g. enlarger, copying camera
    • G03B27/52—Details
    • G03B27/62—Holders for the original
    • G03B27/6207—Holders for the original in copying cameras
    • G03B27/625—Apparatus which relate to the handling of originals, e.g. presence detectors, inverters
    • G03B27/6257—Arrangements for moving an original once or repeatedly to or through an exposure station

Definitions

  • PROJECTION rmmme APPARATUS Filed June 17, 1968 v 2 Sheets-Sheet 1 IN V EN TOR- KQNRAD PHLEPS GUNT HER SCHNALL Dec. 15, 1970 K.
  • One portion of the guide is fixed to or integral with the frame of the printing apparatus and the other portion is hingedly connected with the frame for movement between an operative position and an inoperative position to afford access to an original which is stuck in the guide and to permit inspection and cleaning of the gate.
  • the other portion of the guide has presser rolls or plates which bias the originals against driven transporting rolls in the frame when the other portion is moved to and locked in operative position.
  • the present invention relates to optical printing apparatus in general, and more particularly to improvements in so-called projection printing apparatus of the type wherein images of travelling originals are transferred onto travelling sheets of printing paper or the like.
  • the originals are fed into and transported in a path which leads them past a station wherein the images of originals are reflected or focussed onto printing paper.
  • a drawback of presently known projection printing apparatus is that a crimpled or otherwise damaged sheet-like carrier is likely to become stuck in the guide which defines the aforementioned path and that removal of such damaged or deformed sheets involves much time and considerable losses in output.
  • overheating in the guide can cause permanent damage to or total destruction of the original, especially if the latter comes to a halt and dwells in close proximity of lamps serving to emit light which is reflected on the original and is directed toward printing paper.
  • One of the objects of our present invention is to provide a projection printing apparatus with a novel guide which permits rapid, effortless and convenient removal of damaged or deformed sheets.
  • Another object of the invention is to provide a simple, inexpensive and compact guide which enables the operator to gain access to sheets which are stuck in the printing apparatus and which also enables the operator to inspect, clean, remove and/or replace such parts which confine the sheets during travel past the optical system.
  • the improved printing apparatus comprises a frame or housing which accommodates the optical system, the lamps and other essential components as well as a novel guide which comprises two portions one of which is secured to or integral with the frame and the other of which is movable between an operative position in which the two portions define a path of finite length for transport of sheet-like carriers past the optical system and a second or inoperative position in which a carrier which is stuck in the path is readily accessible or is caused to descend by gravity.
  • the guide can be opened up or closed at the will of the operator.
  • we contemplate to use the improved guide in connection with controlled advance of originals through a projection printing apparatus wherein the originals are caused to travel past one or more lamps to have their images reflected onto travelling sheets or webs of printing paper or the like.
  • the other portion of the guide may be hingedly connected with the frame and the one portion is preferably provided with a substantially vertical front face into which the inlets and outlets of the path extend when the guide is closed.
  • FIG. 1 is a fragmentary side elevational view of a printing apparatus which embodies the invention the movable portion of the guide being shown in operative position;
  • FIG. 2 is a similar view of the printing apparatus but showing the movable portion of the guide in inoperative position.
  • FIG. 1 illustrates a frame or housing 1 which forms part of a continuous optical printer wherein sheet-like originals are caused to travel in a path P defined by a guide which includes a stationary portion 101 forming part of or rigid with the frame 1 and a second portion here shown as a flap 4 which is movable with reference to the first portion 101 between the operative position of FIG. 1 and a second or inoperative position shown in FIG. 2.
  • the means for releasably locking the flap 4 in operative position comprises a hook 5 which is pivotally secured to the fixed portion 101 and can engage a pin 6 on the flap.
  • the hook 5 has a handgrip portion 5a and can hold the fiap 4 in such position that the latter defines with the fixed portion 101 a path of predetermined width.
  • This path P has an inlet A which extends inwardly from an upright front face 1'02 of the portion 101 and an outlet B which also extends inwardly from the front face 102.
  • the end portions of the path -P are of arcuate shape so that an image carrier or original can be admitted by moving in a substantially horizontal plane and that the carrier issues in horizontal position after having passed through the path P.
  • the fixed portion 101 has arcuate guide plates 1a, 1b which respectively flank the right-hand sides of the outlet B and inlet A and face two similar guide plates 4a, 4b of the flap 4.
  • a gate along which the carriers travel in the path P comprises a front pane 6 of vitreous or like transparent material which is mounted in the fixed portion 101 substantially midway between the ends of the path P and a rear pane 7 which is mounted in the flap 4.
  • the means for retaining the panes 6, 7 in requisite position includes brackets 15, 14 which are respectively affixed to the portion 101 and flap 4. At least one of these brackets may serve as a means for preventing movement of the flap 4 beyond the operative position.
  • the panes 6, 7 define between themselves a relatively narrow gap for the passage of carriers.
  • the gate including the panes 6, 7 is analogous to a so-called glass sandwich which is often employed in conventional projection printers.
  • FIGS. 1 and 2 may be provided with a different gate, i.e., that the panes 6, 7 can be replaced by other sheet-guiding and confining means, such as foils, tensioned threads or the like.
  • Two fluorescent tubes 8, 9 are mounted in the frame 1 and serve to illuminate the carriers during travel between the panes 6, 7. The images of such carriers are reflected into a suitable optical system which focuses them on a printing paper or analogous sheet-like carrier, not shown.
  • the means for transporting the carriers in the path P comprises driven transporting rolls 10, 12 which are mounted in the frame 1 adjacent toone side of the path and idler rolls or presser rolls 11, 13 which are mounted in the flap 4 and bear against the carriers to bias them against the peripheral surfaces of transporting rolls.
  • the drive which rotates the rolls 10, 12 is of conventional design and is not shown in the drawing.
  • the rolls 11, 13 can be replaced by plates.
  • the connecting means which secures the flap to the frame 1 comprises two arms 3 (only one shown) on the lower part of the flap and a pintle 2 which is mounted in the frame 1 below the fixed portion 101.
  • a combination comprising a frame; and guide means comprising a first portion provided on said frame and a second portion movable with reference to said first portion between an operative position in which said portions are adjacent to each other and together define an elongated path of finite length for sheet-like carriers and a second position in which the second portion is spaced from said first portion, at least a portion of said path being of arcuate shape and said path having an inlet for admission of carriers and an outletfor evacuation of carriers.
  • a combination comprising a frame; and guide means comprising a first portion rigid with said frame and having a front face,
  • a combination comprising a frame; guide means comprising a first portion provided on said frame and a second portion movable with reference to said first portion between an operative position in which said portions are adjacent to each other and together define an elongated path of finite length for sheet-like carriers and a second position in which the second portion is spaced from said first portion; and a gate at least a portion of which is supported by the first portion of said guide means and along which the carriers advance during travel in said path.
  • a combination comprising a frame; guide means comprising a first portion provided on said frame and a second portion movable with reference to said first portion between an operative position in which said portions are adjacent to each other and together define an elongated path of finite length for sheet-like carriers and a second position in which the second portion is spaced from said first portion; and means for transporting the carriers in said path including at least one driven transporting member mounted in said frame adjacent to one side of said path and at least one presser member mounted in said second portion and located at the other side of said path to bias the carriers against said transporting member in the operative position of said second portion.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
US737562A 1967-06-23 1968-06-17 Projection printing apparatus Expired - Lifetime US3547536A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19671597056 DE1597056A1 (de) 1967-06-23 1967-06-23 Durchlaufkopiergeraet

Publications (1)

Publication Number Publication Date
US3547536A true US3547536A (en) 1970-12-15

Family

ID=5680539

Family Applications (1)

Application Number Title Priority Date Filing Date
US737562A Expired - Lifetime US3547536A (en) 1967-06-23 1968-06-17 Projection printing apparatus

Country Status (3)

Country Link
US (1) US3547536A (cs)
FR (1) FR1572710A (cs)
GB (1) GB1186950A (cs)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3738743A (en) * 1971-04-05 1973-06-12 Pitney Bowes Inc Flat bed electrostatic photocopier design for customer serviceability
US3944365A (en) * 1974-06-24 1976-03-16 Xerox Corporation Document feeding apparatus and latching mechanism
US4094603A (en) * 1976-11-22 1978-06-13 Ben Fowler Evers Flat field, roll film transport
US4118121A (en) * 1976-06-21 1978-10-03 Agfa-Gevaert Ag Continuous microfilm camera
DE3041971A1 (de) * 1979-11-08 1981-05-21 Canon K.K., Tokyo Entriegelungsvorrichtung fuer eine blattausrichtvorrichtung
US4299458A (en) * 1980-06-02 1981-11-10 Autologic, Inc. Self threading phototypesetter transport system
US4786950A (en) * 1985-10-26 1988-11-22 Hans Haus Device for inserting copy and exposure material layers into a device for the continual exposure of this material
US5386256A (en) * 1993-04-28 1995-01-31 Sony Dynamic Digital Sound, Inc. Printer module for recording a digital soundtrack

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2550593A1 (de) * 1975-11-07 1977-05-12 Gerhard Ritzerfeld Xerographisches bzw. elektrostatisches kopiergeraet

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2118999A (en) * 1934-03-21 1938-05-31 Automatic Instr Company Talking picture machine

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2118999A (en) * 1934-03-21 1938-05-31 Automatic Instr Company Talking picture machine

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3738743A (en) * 1971-04-05 1973-06-12 Pitney Bowes Inc Flat bed electrostatic photocopier design for customer serviceability
US3944365A (en) * 1974-06-24 1976-03-16 Xerox Corporation Document feeding apparatus and latching mechanism
US4118121A (en) * 1976-06-21 1978-10-03 Agfa-Gevaert Ag Continuous microfilm camera
US4094603A (en) * 1976-11-22 1978-06-13 Ben Fowler Evers Flat field, roll film transport
DE3041971A1 (de) * 1979-11-08 1981-05-21 Canon K.K., Tokyo Entriegelungsvorrichtung fuer eine blattausrichtvorrichtung
US4361399A (en) * 1979-11-08 1982-11-30 Canon Kabushiki Kaisha Apparatus for releasing a sheet-registration mechanism
US4299458A (en) * 1980-06-02 1981-11-10 Autologic, Inc. Self threading phototypesetter transport system
US4786950A (en) * 1985-10-26 1988-11-22 Hans Haus Device for inserting copy and exposure material layers into a device for the continual exposure of this material
US5386256A (en) * 1993-04-28 1995-01-31 Sony Dynamic Digital Sound, Inc. Printer module for recording a digital soundtrack

Also Published As

Publication number Publication date
FR1572710A (cs) 1969-06-27
GB1186950A (en) 1970-04-08

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