US3121382A - A developing machine for photographic material. - Google Patents

A developing machine for photographic material. Download PDF

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Publication number
US3121382A
US3121382A US85959959A US3121382A US 3121382 A US3121382 A US 3121382A US 85959959 A US85959959 A US 85959959A US 3121382 A US3121382 A US 3121382A
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US
United States
Prior art keywords
chain
photographic material
photographic
paper
developing machine
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
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English (en)
Inventor
Heinz Berger
Rolf Schmidt
Hildegard Schnoering
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 NV
Original Assignee
Agfa AG
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Filing date
Publication date
Application filed by Agfa AG filed Critical Agfa AG
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Publication of US3121382A publication Critical patent/US3121382A/en
Anticipated expiration legal-status Critical
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    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03D—APPARATUS FOR PROCESSING EXPOSED PHOTOGRAPHIC MATERIALS; ACCESSORIES THEREFOR
    • G03D3/00—Liquid processing apparatus involving immersion; Washing apparatus involving immersion
    • G03D3/08—Liquid processing apparatus involving immersion; Washing apparatus involving immersion having progressive mechanical movement of exposed material
    • G03D3/12—Liquid processing apparatus involving immersion; Washing apparatus involving immersion having progressive mechanical movement of exposed material for plates, films or prints spread onto belt conveyors

Definitions

  • This invention relates to a developing machine for photographic material in strip or out form, in which the material is conveyed through the different photochemical processing baths in known manner by means of a conveyor belt or chain.
  • a developing machine for photographic material in strip or cut form in which the material is conveyed through the different photographic processing baths by means of a conveyor belt or chain, wherein the photographic material is moved transversely of the direction of travel thereof.
  • the photographic material is preferably moved with a jerky movement.
  • FIG. 1 is a schematic view partially in section of an apparatus in accordance with one embodiment of the invention using photographic material in out form
  • FIG. 2 is a schematic view partially in section of an apparatus in accordance with another embodiment of the invention using photographic material in strip form.
  • FIGURE 1 of the accompanying drawings A preferred form of construction of a conveyor chain for a developing machine in accordance with the present invention is shown by way of example in FIGURE 1 of the accompanying drawings, in which 1 represents an endless conveyor chain, 2 attached photographic papers, 3 a liquid tank, t a toothed spindle acting as impulse emitter and a chain sprocket wheel.
  • FIGURE 2 of the accompanying drawings A preferred form of construction of a conveyor belt for a developing machine in accordance with the present invention is shown in FIGURE 2 of the accompanying drawings, wherein it represents a conveyor belt, 2 a roll of photographic paper driven thereby, 3 a liquid tank, 4 an eccentric acting as impulse emitter and 5 a driving roller for the conveyor belt.
  • the conveyor belt 1 made up of a series of chain links to form an endless conveyor chain is rotated in counterclockwise fashion by means of the chain sprocket wheel 5 whereby the photographic papers 2 attached to respective links of chain 1 may pivot a certain degree about an axis transverse the moving direction of the chain.
  • the photographic papers 2 travelling upwardly in the right tank 3 as viewed in FIG. 1 are situated so that their lower edges will make contact with the top edge of right tank 3 adjacent thereto. Because of the grooves provided in chain sprocket wheel 5, the innermost portion of papers 2 will abut against the adjacent grooved portion at the same time the outermost edge will abut said top edge of right tank 3.
  • each photographic paper 2 makes contact with the top edge of right tank 3 and thereafter springing outwardly, making contact with the top edge of left tank 3 and thereafter sliding therealong while the chain itself is outwardly and downwardly urged upon abutting contact with the various teeth of spindle 4, the desirable jerking and tapping action of the papers 2 is accomplished so that any film of liquid present thereon will be impulsively broken and the liquid particles drained therefrom.
  • the roll of photographic paper 2' is carried by the conveyor belt 1 in counterclockwise direction about driving roller 5 so that the paper 2 and conveyor belt 1' move in the direction as shown by the arrows first through the right tank 3' and thence through the left tank 3.
  • an eccentric 4 is mounted for rotation in the same direction as driving roller 5' so that the outermost edges of eccentric 4 will intermittently strike belt 1' and in turn paper roll 2 to jar the same and shake therefrom any attendant liquid film or droplets.
  • paper roll 2' is carried by belt 1 by the friction contact between their two abutting surfaces. Since both roll 2 and belt 1' are mounted in double-ply fashion for movement over the various roll-er loops (see FIGURE 2), these elements will be retained in suitable friction contact with respect to one another.
  • the spacing required is approximately 18 cm., so that only 10 pictures can be arranged over a distance of 180 cm.
  • the capacity of the machine fitted with the impulse emitter is therefore three times that of a similar machine not provided with an impulse emitter.
  • the arrangement shown in FIG. 2, which has proved especially suitable for bath developing machines, is for 3 example able to reduce the residence time in the rinsing tanks by more than 20% without detracting from the rinsing quality.
  • the liquid film on the surface of the material being processed is readily detached therefrom as a result of the transverse and preferably jerky movement imparted to the material being processed.
  • Past experience has shown that up to now this film could only be removed with great difliculty.
  • the removal of the liquid film enables the baths required for the further processing of the material and also the washing water to penetrate more quickly into the emulsion layer which results in a more rapid and more uniform processing of the material.
  • Apparatus for automatically developing photographic material in cut form which comprises container means for the different photographic processing baths, an endless conveyor chain mounted for movement along a path of travel through the different photographic processing baths, such that when moving from one bath to the next a portion of the path of travel is out of contact with any one of the baths, said conveyor chain having means for pivotally mounting photographic material in out form along a transverse axis of pivot with respect to the path of travel of said conveyor chain, and intermitter unilateral transverse impulse displacing means mounted adjacent to said conveyor chain along the portion of said path of travel out of 4, contact with any of the baths, said displacing means including at least one projection means slanted in the direction of travel of said conveyor chain and extending through the plane of the normal path of travel of said conveyor chain for abuttingly contacting the links of said chain and in turn intermittently transversely displacing said conveyor chain out of the plane of its normal path of travel along the extent of said projection means and thereafter abruptly permitting the return of said conveyor chain back to its normal path.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Photographic Processing Devices Using Wet Methods (AREA)
  • Photographic Developing Apparatuses (AREA)
US85959959 1958-12-17 1959-12-15 A developing machine for photographic material. Expired - Lifetime US3121382A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA30968A DE1094101B (de) 1958-12-17 1958-12-17 Entwicklungsmaschine fuer Photomaterial

Publications (1)

Publication Number Publication Date
US3121382A true US3121382A (en) 1964-02-18

Family

ID=6927369

Family Applications (1)

Application Number Title Priority Date Filing Date
US85959959 Expired - Lifetime US3121382A (en) 1958-12-17 1959-12-15 A developing machine for photographic material.

Country Status (7)

Country Link
US (1) US3121382A (de)
AT (1) AT216886B (de)
BE (1) BE585667A (de)
CH (1) CH375227A (de)
DE (1) DE1094101B (de)
FR (1) FR1247539A (de)
GB (1) GB916262A (de)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE167072C (de) *
US1583287A (en) * 1922-03-16 1926-05-04 John A Fisher Roundabout
US2036442A (en) * 1930-08-09 1936-04-07 Tanatar Marc Method and apparatus for developing sound record motion picture film
CH249392A (de) * 1944-06-26 1947-06-30 Baebler Curt Einrichtung zur Nassbehandlung belichteter photographischer Bildschichtträger, insbesondere für Photographierautomaten.
US2542830A (en) * 1948-02-20 1951-02-20 Newton Automatic photographic processing device
US2755205A (en) * 1953-04-22 1956-07-17 Clarence C Robb Method for coating and draining
US2762763A (en) * 1951-07-13 1956-09-11 Nat Standard Co Process and apparatus for simultaneously drawing and plating wire
US2792224A (en) * 1956-02-10 1957-05-14 White Amanda Lillian Jumping rabbit and egg pull game
DE1021716B (de) * 1955-04-15 1957-12-27 Agfa Camera Werk Ag Behandlungseinrichtung fuer blattfoermige fotografische Schichttraeger mit umlaufendem, kettenfoermigem Transportorgan

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE167072C (de) *
US1583287A (en) * 1922-03-16 1926-05-04 John A Fisher Roundabout
US2036442A (en) * 1930-08-09 1936-04-07 Tanatar Marc Method and apparatus for developing sound record motion picture film
CH249392A (de) * 1944-06-26 1947-06-30 Baebler Curt Einrichtung zur Nassbehandlung belichteter photographischer Bildschichtträger, insbesondere für Photographierautomaten.
US2542830A (en) * 1948-02-20 1951-02-20 Newton Automatic photographic processing device
US2762763A (en) * 1951-07-13 1956-09-11 Nat Standard Co Process and apparatus for simultaneously drawing and plating wire
US2755205A (en) * 1953-04-22 1956-07-17 Clarence C Robb Method for coating and draining
DE1021716B (de) * 1955-04-15 1957-12-27 Agfa Camera Werk Ag Behandlungseinrichtung fuer blattfoermige fotografische Schichttraeger mit umlaufendem, kettenfoermigem Transportorgan
US2792224A (en) * 1956-02-10 1957-05-14 White Amanda Lillian Jumping rabbit and egg pull game

Also Published As

Publication number Publication date
CH375227A (de) 1964-02-15
DE1094101B (de) 1960-12-01
BE585667A (fr) 1960-06-15
AT216886B (de) 1961-08-25
GB916262A (en) 1963-01-23
FR1247539A (fr) 1960-12-02

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