US1861827A - Visibly marked motion picture film and method of making same - Google Patents

Visibly marked motion picture film and method of making same Download PDF

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Publication number
US1861827A
US1861827A US343762A US34376229A US1861827A US 1861827 A US1861827 A US 1861827A US 343762 A US343762 A US 343762A US 34376229 A US34376229 A US 34376229A US 1861827 A US1861827 A US 1861827A
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US
United States
Prior art keywords
film
motion picture
marking
making same
picture film
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
US343762A
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English (en)
Inventor
Robert N Titus
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.)
Eastman Kodak Co
Original Assignee
Eastman Kodak 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
Application filed by Eastman Kodak Co filed Critical Eastman Kodak Co
Priority to US343762A priority Critical patent/US1861827A/en
Priority to GB22622/29A priority patent/GB327365A/en
Priority to DEE39657D priority patent/DE552517C/de
Priority to US587748A priority patent/US1917406A/en
Application granted granted Critical
Publication of US1861827A publication Critical patent/US1861827A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • G03C11/00—Auxiliary processes in photography
    • G03C11/02—Marking or applying text
    • 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
    • Y10S101/00—Printing
    • Y10S101/29—Printing involving a color-forming phenomenon
    • 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
    • Y10S430/136—Coating process making radiation sensitive element

Definitions

  • This invention relates to photography and more particularly to a process for produclng visible images on photographic light sensltive material, such as edge markings on motion picture film.
  • One object of my invention is to provide aprocess for marking photosensitive material which will immediately produce visible marks which will not rub off f or become ofl'set on another convolution of film wound against the marked film.
  • Another objcct is to provide a stable material which may be termed an ink substitute which will not, at ordinary temperatures vaporize thus fogging the photosensitive material.
  • Another object is to provide an ink substitute which is of a consistency to render it readily applicable to-photosensitive material with known apparatus, such as numbering stamps, stencils, etc.
  • Still another object of my invention is to provide an ink substitute or writing fluid which makes a permanent mark on the photosensitive material by the formation of a silver sulphide image therein, such an image being unaffected by subsequent film treatment, and other objects will appear from the following specification, the novel features being particularly pointed out in the claims at the end thereof.
  • photosensitive material such as motion picture film band has been marked in various manners for identification: as for instance by light printing on the film, by'printing with ordinary printing ink and the like. Light printing requires great care to prevent unwanted light from fogging the film and must be developed to be visible;
  • My present invention relates to a marking fluid which overcomes the above difiiculties in that the markings are immediately visible, permanent, will not offset and are not affected by any standard film treatment.
  • the sulfiding material must be such that it can be readily applied to the film; that it will not spread from the place applied to the film; and that it is not readily dispersed at room temperature into the atmosphere so as to have a deleterious efl'ect on the photosensitive material.
  • the desired result may be accomplished with an ink substitute containing a material to cause the formation of a silver sulfide image in the film.
  • ink substitutes are:
  • Emample .I. to 5 g. of sodium sulfide are dissolved in 100 c. c. of water. This solution produces the silver sulfide image instantaneously, and the contrast of the image can be readily controlled as it is a function of the concentration of the sodium sulfide.
  • This solution is of fairly high viscosity, may be readily applied by suitable means, and produces a sulfide silver image immediately.
  • ink substitutes in the above cited examples may be used in various ways to mark photographically sensitive film, and for marking with any desirable data.
  • FIG. 1 is a digrammatic fragmentary plan view of a film marked in accordance with my invention.
  • Fig. 2 is a diagrammatic side elevation part in section of a typical printing device for transferring marking fluid to the film.
  • a film 1 may consists of the usual cellulosic base or support coated with a gelatino silver halide emulsion 2. There may be lines 5' and transverse lines 6, which lines of course are not visible on undeveloped film.
  • the printing station is diagrammatically illustrated as consisting of a tank 13 containing marking fluid 14: which may be of the type above described containing sodium sulfide with or without a viscosity producing material.
  • This fluid 14 may be transferred by an ab sorbent wheel 15 to a rotary type carrying stam 16 which contacts with the film 1 when the lm is lowered by pressure roll 17 carried by the movable bracket 18.
  • Bracket 18 also carries guide rolls 19, and, as the film may be threaded between rolls 18 and 19 it may be moved to and from the printing roll with the bracket.
  • footage marks or symbols 26 may be placed every sixteen picture frames if desired.
  • An ordinary type of numbering stamp may be used for this purpose if desired as my mark- .ing fluid may be of the proper viscosity to use with the commercial article.
  • marking fluid of low viscosity for use 1n hand marking with ordinary pen as used with ordinary ink.
  • a method of producing instantly visible markings on a film coated with a gelatino silver halide emulsion comprising marking said emulsion with an agent adapted to convert that portion of the emulsion marked to silver sulfide.
  • a method of producing instantly visible markings on a film coated with a gelatino silver halide emulsion comprising marking said emulsion with sodium sulfide.
  • a method of producin instantly visible markings on a film coated with a gelatino silver halide emulsion comprising marking said emulsion with sodium sulfide and a viscosity producing agent.
  • a method of producing instantly visible markings on a film coated with a gelatino silver halide emulsion comprising marking said emulsion with sodium sulfide and sodium alginate.
  • a method of producing instantly visible markings on a film coated with a gelatino silver halide emulsion comprising marking said emulsion with a soluble sulfide.
  • a method of producing instantly visible markings on a film coated with a gelatino silver halide emulsion comprising marking said emulsion with a sodium sulfide solution containing sodium alginate.
  • a method of producing instantly visible markings on a filmcoated with a gelatino silver halide emulsion comprising marking said emulsion with a marking fluid made up in accordance with the following formula: to 20 g. sodium sulfide dissolved in 100 c. c. of water and to 10 g. of sodium alginate.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Printing Methods (AREA)
US343762A 1929-03-01 1929-03-01 Visibly marked motion picture film and method of making same Expired - Lifetime US1861827A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US343762A US1861827A (en) 1929-03-01 1929-03-01 Visibly marked motion picture film and method of making same
GB22622/29A GB327365A (enrdf_load_stackoverflow) 1929-03-01 1929-07-23
DEE39657D DE552517C (de) 1929-03-01 1929-07-30 Verfahren zur Herstellung von sichtbaren Kennzeichen ausserhalb der Bildflaeche eines Kino- oder anderen photographischen Films
US587748A US1917406A (en) 1929-03-01 1932-01-20 Visibly marked photographic film

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US552517XA 1929-03-01 1929-03-01
US327365TA 1929-03-01 1929-03-01
US343762A US1861827A (en) 1929-03-01 1929-03-01 Visibly marked motion picture film and method of making same

Publications (1)

Publication Number Publication Date
US1861827A true US1861827A (en) 1932-06-07

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
US343762A Expired - Lifetime US1861827A (en) 1929-03-01 1929-03-01 Visibly marked motion picture film and method of making same

Country Status (3)

Country Link
US (1) US1861827A (enrdf_load_stackoverflow)
DE (1) DE552517C (enrdf_load_stackoverflow)
GB (1) GB327365A (enrdf_load_stackoverflow)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2490442A (en) * 1946-01-22 1949-12-06 Kagansky Nachoum Process for obtaining the subtitles of kinematograph films
US2624163A (en) * 1948-04-22 1953-01-06 American Cyanamid Co Method of making colored gelatin capsules
US2679651A (en) * 1951-07-26 1954-06-01 Charles H Pokorny Toilet flushing device
US4215920A (en) * 1978-01-25 1980-08-05 Butler Matthew T Means for post-production film-making

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4478639A (en) * 1977-12-27 1984-10-23 Three Dimensional Photography Corporation Method for stereoscopic photography

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2490442A (en) * 1946-01-22 1949-12-06 Kagansky Nachoum Process for obtaining the subtitles of kinematograph films
US2624163A (en) * 1948-04-22 1953-01-06 American Cyanamid Co Method of making colored gelatin capsules
US2679651A (en) * 1951-07-26 1954-06-01 Charles H Pokorny Toilet flushing device
US4215920A (en) * 1978-01-25 1980-08-05 Butler Matthew T Means for post-production film-making

Also Published As

Publication number Publication date
DE552517C (de) 1932-06-15
GB327365A (enrdf_load_stackoverflow) 1930-04-03

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