Camera wind and trip testing methods and apparatus
AssigneeEastman Kodak Company
InventorsMichael L. DeCecca, Joseph A. Watkins, Mark D. Garlock
Life of this patent
Estimating the term…
Abstract
Method and apparatus for testing wind and trip in camera units for use with photographic film. Each camera unit encloses and defines a film path and includes a film driven preset member and a film spindle. The preset member extends into the film path. In the method, the film spindle of the camera unit is wound; and, in tandem with the winding, a film surrogate is propelled along the film path from a position upstream from the preset member to a position downstream from the preset member. During the propelling, the film surrogate is maintained in the film path.
Claims20
A method for testing camera units for use with photographic film, each camera unit including a film spindle and having a film driven preset member, each said camera unit defining a film path, the preset member extending into the film path, said method comprising the steps of:
- winding the film spindle of the camera unit;
- propelling a film surrogate along said film path from a position upstream from the preset member to a position downstream from the preset member;
- and
- during said propelling, maintaining said film surrogate in the film path between said position upstream from the preset member and said position downstream from the preset member;
- and
- during said propelling, keeping said film surrogate from curling about said film spindle.
An apparatus for testing a photographic film camera unit, the camera unit defines a film path, and has a spindle, and has a preset member extending into the film path, said apparatus comprising:
- a receiver accepting the camera unit;
- a spindle drive having a cyclically movable drive member, mechanically coupleable to the spindle of said camera unit for rotation of said spindle with cyclic movement of said drive member;
- and
- a film surrogate having a tongue portion and a rack joined to said tongue portion, said tongue portion being disposable in the film path of said camera unit;
- and
- a surrogate drive enmeshed with said rack, said surrogate drive moving said film surrogate along said film path from a position upstream of the preset member of said camera unit to a position downstream of said preset member.
Dependencies are inferred from the claim text.