US1760048A - Apparatus for making mosaic screens for color photography - Google Patents

Apparatus for making mosaic screens for color photography Download PDF

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Publication number
US1760048A
US1760048A US345400A US34540029A US1760048A US 1760048 A US1760048 A US 1760048A US 345400 A US345400 A US 345400A US 34540029 A US34540029 A US 34540029A US 1760048 A US1760048 A US 1760048A
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United States
Prior art keywords
trough
strip
color photography
dye
rollers
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Expired - Lifetime
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US345400A
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English (en)
Inventor
Dufay Louis
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Individual
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Individual
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Publication of US1760048A publication Critical patent/US1760048A/en
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    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C7/00—Multicolour photographic processes or agents therefor; Regeneration of such processing agents; Photosensitive materials for multicolour processes
    • G03C7/04—Additive processes using colour screens; Materials therefor; Preparing or processing such materials
    • G03C7/06—Manufacture of colour screens
    • G03C7/10—Manufacture of colour screens with regular areas of colour, e.g. bands, lines, dots
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S430/00—Radiation imagery chemistry: process, composition, or product thereof
    • Y10S430/135—Cine film

Definitions

  • This -invention provides a machine for treating long strips ofdyedsheet material (for examplecellulose acetate film) having a resist pattern imprinted thereon, ⁇ for the production of mosaic color-screens for direct color photography and cinematography.
  • the jinvention is particularly adapted for the carrying out of the method of making three-color screens described in the specifica- ]j tion of L. Dufay application Serial No. 345,-
  • the machine according to the present invention comprises in combination a trough for a decolorizing agent, a device for applying a dye, a washing device, a drying-device, a trough (or more than one) for a solvent of Vthe resisttmateriah'a wi ing device within said trough, a second rying device, ⁇ and means for guiding and moving the strips to be treated continuously throu h the troughs anddevices in the order named.
  • Figure 1 is a side elevation partly in section of part of the machine
  • Figure 2 is a side elevation partly in section of the remainder and is a continuation of Figure 1 towards the left;
  • Figure 3 is a section on the line 3-3 of Figure 1;
  • Figure 4 is ⁇ a section on the line 4-4 of re 5 is asection on the line 5--5 of Figug 1;
  • the machine as a whole comprises Va. main frame 12 having a succession of rollers 13 to i lead the vfilm 14 along the top of the machine to the inlet end. l t
  • the decolorizing trough 15, which is in the form of a shallow dish, is mounted at one end of the 'machine upon two pairs of brackets 16 carried by two eccentric shafts 17 geared to- Uether, one of which carries a hand-wheel 18.
  • the trough 15 may be raised or lowered at' will.
  • two guide-rollers 19, 2O are mounted. These rollers are so arranged that the strip 14 passing under them is exactly horizontal, and when the apparatus is in use the trough 15 is adjusted so that the liquid de- Colorizing agent therein just touches the underside of the strip.
  • e l After leaving the decolorizing trou h', the strip passes under a roller 21 u on winch it receives dye from a ebonite ye-applying roller 22 which dips into afdye-trough 23, (mounted in a similar manner to the decolorizing trough) and which rotates in close proximity to but not in contact with the strip.
  • this roller 22 is greater than the speed of the strip or it may alternatively revolve in a direction opposite tol that in which the strip is moving) whereby any traces of the decolorizing agent which may ,still cling Ito the sur face of the strip may be swept away.
  • the strip then passes around a positively driven drum 24 about 20 cm.,in diameter, upon which it is washed by means of jets of water directed from 4pipes 26 upon its exposed side, further jets of water being directed upon the other side just before it comes into contact with the drum for the purpose of removing any dye which may have encroached upon that side.
  • Beneath the drum 24 is a trough 25provided with a waste-pipe ,27 for collecting and removing the washingleys 36 te a winch 37 by which it canbe Iraised or lowered.
  • the strip passes over six upperrollers 38 and Vfive lower rollers 39, the axes of which are fixed, these lower rollers being so situated that each is inside and near' the bottom of one of the troughs 31, 32, 33 when the frame 34 carrying them is in its u per position, the upper 'rollers .38 being a ove the troughs and serving to conduct the strip from one trough to the other.
  • the upper rollers 38 which are positively driven, are
  • the resist material is usuallyof a greasy nature and the solvent ⁇ in vthe first three troughs 31 is accordingly benzene, petrol or like solvent of grease.
  • the first and second 4squeegee rollers 40 'must therefore be of a material not attackedby this solvent: and it is preferred to cover them with soft gelatine.
  • the strip After leaving the rinsing trough, the strip passes between a second set of drying or blotting rollers '41 similar to those just described,
  • connection between the jockey-pulley and the n vslipping clutch being such that when tlie tension in the strip increases beyond a certain amount the clutch is caused to ⁇ slip.
  • every roller which has to engage the side bearing the resist material, up to the first washing stage is of thekind comprising two conical roller-elements spaced apart on a spindle, which engage the edge only of the strip.
  • each solvent tank is a positively-driven flannel-covered wiping roller 44 bearin lightlyl against the side of the stri on whic is the greasy resist material, and t ese rollers rotate in the same direction as the strip but with a rather greater peripheral speed,l (alternatively these wiping rollers may rotate in the direction opposite to the movementpf the strip).
  • Two such rollers are providedain the degreasing trough, one on either side of the strip, but there are no wiping rollers in the final rinsing trough.
  • All the rollers over which the strip passes are preferably mounted in sel aligning ball-bearings.
  • the strip A may beused after this treatment as a screen for two-color photography or cinematography. If, however, it is 'desired to produce a three-color screen according to the specification of L. Dufay application No. 345,604, filed March 8, 1929,. a second pattern in resist material must be impressed upon the film, followed by a second decolorizing, dyeing and washing. treatment similar to that described above.
  • a second apparatus similar to that de.
  • a machine for treating long strips of dyed sheet material having a resist pattern imprinted thereon for the production of mosaic screens for color photography and cinematography comprising in combination a trough for a decolorizing agent, a device forapplying a dye, a washing device, a drying device, a trough for a solventbf the resist om the other.y
  • a machine for treating long strips of dyed sheet material havinga resist pattern imprinted thereon for the production of mosaic screens for color photography and cinematography comprising in combination a trough for a decoloriziiig agent, a device for applying a dye, and means for guiding and moving the strip to be treated'with one side only in contact with the decolorizing agent and subsequently with the dye-applyin device, namely that yside which is dyed and ears the imprinted 'resist pattern.
  • a machine for treating long strips of dyed sheet material having a resist pattern imprinted thereon for the production of mosaic screens for color photography and cinematography comprising in combination a trough for a decoloriZing agent mounted to be movable at will in a vertical direction whereby the surface of the decolorizing agent can be brought into contact with the lower side of the strip, a device for applying a dye, a washing device, a drying device, a trough for a solvent of the resist material, 'a wiping device within said trough, a second drying device and means for guiding and moving the strip to be treated continuously through the troughs and devices in the order named'.
  • a machine for treating long strips of dyed sheet material having a'resist pattern imprinted thereon for the production of mosaic screens for color photography and cinematography comprising in combination a trough for a decolorizing agent, a device for applying a dye comprising a roller dipping into a dye-trough and revolved in close proxiniity to the surface of the strip, a washing device, a drying device, a trough for a solvent of the resist material, a wiping device Within said trough, a second dryi-ng device and means for guiding and moving the strip to be treated continuously through the troughs and devices in the order named.
  • a machine for treating long strips of dyed sheet material having a resistpattern imprinted thereon for the production of mof saic screens for color photography and cinematography comprising ⁇ in combinatidn a trough for a decoloriziiig agent, a device for applyinga dye comprising a roller dipping into a dye-trough and revolved in close proxs imity to the surface of the strip, a washing device, a drying device, a trough for a solvent of the resist material, a wiping device with:
  • a machine for treating long strips of dyed sheet material having a resist pattern imprinted thereon for the production of mosaic screens for'color photography and cinematography comprising in combination a trough for a decolorizing agent, a device for applying a dye, a washing device comprising a roller of relatively large diameter for supporting the moving strip and a plurality of water-jets' directed upon the strip, a drying device, a trough for a solvent of the resist material, a wiping device within said trough, a
  • second drying device and means for guiding f and moving the strip to be treated continuou'sly through the troughs and devices in the order named.
  • a machine for treating long strips of dyed sheet material having a resist pattern imprinted thereon for the production of mo,- saic screens for color photography and cine- ⁇ niatography comprising in combination a the strip to betreated continuously through the. troughs and devices in the order named.
  • a machine for treating long strips of dyed sheet material having a resist pattern imprinted thereon for the production of mosaic screens for color photography and cinematography comprising in combination a trough for a ldecolorizing agent, a device for applying a dye, a Washing device, a drying device comprising a series of rollers of soft fibrous absorbent material in contact alternately with opposite sides of the strip and rotated at peripheral'speeds different from the linear speed of the strip, a trou h for a solvent of the resist material, a wiping device within said trough, a second drying device and means for guiding and moving the strip to b'e treated eeontinuously through the troughs and devices in the order named.
  • a machine for treating ⁇ long -strips of. dyed sheet ⁇ material having a resist pattern imprinted thereon for the production of mosaic screens for color photography and cinematography comprising in combination a trough for a decolorizing agent, a device for applying a dye, afwashin device, a drying device, a trough for a solvent of the resist material, a Wi ping device Withinsaid'trough, a trough for an alkaline de-greasing bath, a trough for rinsing water, a second drying device and means for guiding and moving the strip to be treated continuously through the troughs and devices in the order named.
  • a machine for ytreating long strips of dyed sheet material having a resist pattern imprinted thereon for the production et mosaicscreens forgcplor photography and cinematography comprising in combination a. trough for a decolorizing agent, a device for applying a dye, and means for guiding and

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Coating Apparatus (AREA)
  • Coloring (AREA)
  • Treatment Of Fiber Materials (AREA)
US345400A 1928-08-04 1929-03-08 Apparatus for making mosaic screens for color photography Expired - Lifetime US1760048A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB22675/28A GB322454A (en) 1928-08-04 1928-08-04 Improvements in or relating to apparatus for making mosaicscreens for colour photography

Publications (1)

Publication Number Publication Date
US1760048A true US1760048A (en) 1930-05-27

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ID=10183283

Family Applications (1)

Application Number Title Priority Date Filing Date
US345400A Expired - Lifetime US1760048A (en) 1928-08-04 1929-03-08 Apparatus for making mosaic screens for color photography

Country Status (5)

Country Link
US (1) US1760048A (enrdf_load_stackoverflow)
DE (1) DE536696C (enrdf_load_stackoverflow)
FR (1) FR667412A (enrdf_load_stackoverflow)
GB (1) GB322454A (enrdf_load_stackoverflow)
NL (1) NL28046C (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2475658A (en) * 1944-08-18 1949-07-12 Remington Rand Inc Photographic developing apparatus with easily accessible tanks and conveyers
US2933825A (en) * 1956-11-19 1960-04-26 Paper Converting Machine Co Moisture removal system
US7644512B1 (en) * 2006-01-18 2010-01-12 Akrion, Inc. Systems and methods for drying a rotating substrate

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2475658A (en) * 1944-08-18 1949-07-12 Remington Rand Inc Photographic developing apparatus with easily accessible tanks and conveyers
US2933825A (en) * 1956-11-19 1960-04-26 Paper Converting Machine Co Moisture removal system
US7644512B1 (en) * 2006-01-18 2010-01-12 Akrion, Inc. Systems and methods for drying a rotating substrate

Also Published As

Publication number Publication date
GB322454A (en) 1929-12-04
FR667412A (fr) 1929-10-16
DE536696C (de) 1931-10-27
NL28046C (enrdf_load_stackoverflow)

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