| 摘要 |
A pair of spreader elements in photographic apparatus to effect the spreading of a processing fluid as a layer between two sheets of material as such sheets are advanced therebetween. The spreader elements are provided with a pair of facing surfaces which exert a compressive force on the sheet materials. At least one of these facing surfaces is provided with a recessed portion adjacent each of its ends to initially provide selected increased thicknesses of processing fluid in the fluid layer formed immediately thereunder. In a preferred embodiment, the spreader elements are pivotally mounted for movement into and out of juxtaposition, with one of such elements being formed of a resiliently flexible material having a concavity initially provided in its facing surface and extending substantially thereacross. When such pivotally mounted spreader elements are disposed in their operative position, a force is directed centrally against the resiliently flexible member to deform its facing surface whereby a small concavity is provided adjacent each of its ends. |
