DEVICE FOR PHOTOGRAPHIC PLATE FRAME ASSEMBLY

DEVICE FOR PHOTOGRAPHIC PLATE FRAME ASSEMBLY

CN
  • CN 1,032,241 A
  • Filed: 09/23/1987
  • Published: 04/05/1989
  • Est. Priority Date: 09/23/1987
  • Status: Abandoned Application
First Claim
Patent Images

1. ;

  • a kind of device for photographic plate frame assembly that is used for enlarger;

    comprising a photographic plate frame assembly;

    it has an egative film mask;

    be formed with the egative film guide groove on this mask upper surface;

    simultaneously can be around the egative film compressing member of bearing pin rotation one of this egative film mask upper support;

    be used for the egative film compression set in this egative film guide groove;

    this system comprises that also one is used for supporting the egative film mask substrate of this photographic plate frame assembly;

    it is characterized in that;

    said egative film mask substrate surface thereon is provided with a fixed protrusion; and

    can towards with the movable jut of this fixed protrusion motion dorsad;

    also has a spring that is used for movable jut is pushed to fixed protrusion;

    said egative film mask then is provided with groove on the rear and front end on its bottom surface and the left and right sides, be used for holding aforesaid fixed protrusion and movable jut.

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