FR2354581A1 - Procede et dispositif pour la destruction de produits photographiques - Google Patents

Procede et dispositif pour la destruction de produits photographiques

Info

Publication number
FR2354581A1
FR2354581A1 FR7718889A FR7718889A FR2354581A1 FR 2354581 A1 FR2354581 A1 FR 2354581A1 FR 7718889 A FR7718889 A FR 7718889A FR 7718889 A FR7718889 A FR 7718889A FR 2354581 A1 FR2354581 A1 FR 2354581A1
Authority
FR
France
Prior art keywords
microfilm
passed
strip
film
rollers
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.)
Withdrawn
Application number
FR7718889A
Other languages
English (en)
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of FR2354581A1 publication Critical patent/FR2354581A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/14—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers
    • B02C18/148—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers specially adapted for disintegrating plastics, e.g. cinematographic films
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C4/00—Crushing or disintegrating by roller mills
    • B02C4/02—Crushing or disintegrating by roller mills with two or more rollers
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03D—APPARATUS FOR PROCESSING EXPOSED PHOTOGRAPHIC MATERIALS; ACCESSORIES THEREFOR
    • G03D15/00—Apparatus for treating processed material

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)

Abstract

Procédé pour la destruction de produits photographiques en bande, rubans, feuilles, et notamment de microfilms, dans le sens d'une modification de leur surface. Procédé caractérisé en ce qu'on soumet le support d'image à une distorsion ou un pliage continu ou décalé, dans des plans transversaux et perpendiculaires à sa surface, le cas échéant avec application simultanée d'une grille d'impression à mailles fines sur au moins l'une des faces du support Procédé applicable à une destruction complète de la lisibilité de films et microfilms.
FR7718889A 1976-06-12 1977-06-10 Procede et dispositif pour la destruction de produits photographiques Withdrawn FR2354581A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19762626410 DE2626410C2 (de) 1976-06-12 1976-06-12 Verfahren und Vorrichtung zum Vernichten fotografischer Materialien

Publications (1)

Publication Number Publication Date
FR2354581A1 true FR2354581A1 (fr) 1978-01-06

Family

ID=5980394

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7718889A Withdrawn FR2354581A1 (fr) 1976-06-12 1977-06-10 Procede et dispositif pour la destruction de produits photographiques

Country Status (2)

Country Link
DE (1) DE2626410C2 (fr)
FR (1) FR2354581A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS542887U (fr) * 1977-06-10 1979-01-10
NO793529L (no) * 1979-11-02 1981-05-05 Erik Holger Hansen Fremgangsmaate og apparat for aa tilintetgjoere informasjoner paa filmkort.

Also Published As

Publication number Publication date
DE2626410B1 (de) 1977-10-13
DE2626410C2 (de) 1978-06-01

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Legal Events

Date Code Title Description
ST Notification of lapse