Claims
- 1. Apparatus for receiving a stack of film sheets and dispensing one film sheet at a time, comprising:
- a housing having a region for holding a stack of film sheets wherein each film sheet extends in a largely vertical plane;
- a roller at the lower end of said housing;
- means spaced slightly from said roller to normally allow only one film sheet at a time to pass by said roller, said means including a support plate; and
- a backing device disposed in said housing with a lower end thereof on a side of said region opposite said roller, said backing device being urged to move so its lower end moves toward the roller to push a film sheet against said roller, said backing device including a low friction block at the bottom thereof having fingers thereon, the fingers having a low friction forward portion which moves close to said roller to press a last film of a stack against said roller.
- 2. The apparatus described in claim 1 wherein:
- said support plate has slots therein; and
- said fingers of said backing device extend through said slots in said support plate.
- 3. In an X-ray film dispenser apparatus having a lighttight housing, a support surface which holds a largely vertical stack of X-ray film sheets, and a narrow throat at the bottom of the stack with a roller beside the throat for dispensing one sheet at a time through the throat, the improvement comprising:
- a backup member movable against the stack of film sheets to move the stack away from the throat, the member then movable quickly away from the stack, whereby to "shake up" the stack so the film sheets will lie in a more uniform manner.
- 4. The improvement described in claim 3 wherein:
- said support surface extends at a downward incline toward said throat and has a plurality of slots, and including:
- pusher plate means lying on a side of the film stack opposite the backup member, and having a lower end with fingers extending through said slots in said support surface, for urging the film sheets toward the throat.
Parent Case Info
This application is a division of application Ser. No. 925,554, filed July 17, 1978, now U.S. Pat. No. 4,260,896; itself a continuation-in-part of application Ser. No. 805,815, filed June 13, 1977, now abandoned.
US Referenced Citations (6)
Divisions (1)
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Number |
Date |
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Parent |
925554 |
Jul 1978 |
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Continuation in Parts (1)
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Number |
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805815 |
Jun 1977 |
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