Picture viewer

A picture viewer for a pile of pictures, comprising

• enclosure means including a frame defining a viewing window and a slider reciprocably mounted on the frame, the frame and slider having relative obverse and reverse sliding movements in opposite directions along the window, the enclosure means also defining a picture compartment having one end adjacent the window to contain a pile of pictures with a picture on one end of the pile disposed at said one end of the compartment and adjacent the window,
• a picture changing mechanism in the enclosure means and operatively connected with the frame and slider for transporting an individual picture from a first end of the pile and returning said individual picture to the second end of the pile in response to the relative obverse and reverse sliding movements of the frame and slider, and
• the picture changing mechanism including an individual picture transporting means, a pile transporting means, and a surface retentive means, one of the transporting means being connected with the frame and movable therewith, and the other of the transporting means being connected with the slider and movable therewith, the pile transporting means being disposed at one side of the compartment to engage one side of the pile of pictures, the individual picture transporting means having portions thereof disposed at one end of the compartment to engage said individual picture at the corresponding end of the pile and cooperating with the pile transporting means to change the picture at the window in response to relative obverse and reverse sliding movements of the frame and slider, said surface retentive means having picture surface engaging means spaced from a side of the compartment for engaging the face of the picture and the picture surface engaging means effecting a gripping relation with the face of the individual picture to effect relative movement between the individual picture and the pile, the surface retentive means being movable relative to the pile with the surface engaging means in engagement with the face of an individual picture opposite the pile in response to said relative movement between frame and slider whereby said individual picture is loosened from the pile, and disabling means to render the retentive element disabled with respect to the remaining picture in the pile after said individual picture has been loosened and during substantially the remainder of the picture changing operation.

A picture viewer for a pile of pictures, comprising

• enclosure means including a frame defining a viewing window and a slider reciprocably mounted on the frame, the frame and slider having relative obverse and reverse sliding movements in opposite directions along the window, the enclosure means also defining a picture compartment having one end adjacent the window to contain a pile of pictures with a picture on one end of the pile disposed at said one end of the compartment and adjacent the window,
• a picture changing mechanism in the enclosure means and operatively connected with the frame and slider for transporting an individual picture from a first end of the pile and returning said individual picture to the second end of the pile in response to the relative obverse and reverse sliding movements of the frame and slider, the picture changing mechanism including an individual picture transporting means and a pile transporting means, one of the transporting means being connected with the frame and movable therewith and the other of the transporting means being connected with the slider and movable therewith, the pile transporter being disposed at one side of the compartment to engage one side of the pile of pictures, the individual picture transporting means having portions thereof disposed at one end of the compartment to engage said individual picture at the corresponding end of the pile and cooperating with the pile transporting means to change the picture at the window in response to such relative obverse and reverse sliding movements of the frame and slider, said portions of the individual picture transporting means including surface retentive means confronting the corresponding one end of the compartment and engaging a face of said individual picture to loosen it from the pile in response to said relative sliding movement between frame and slider, said retentive means including a retentive element connected with the frame and having means alternatively pressing said retentive element against the individual picture at the end of the pile during a picture changing operation and withdrawing said retentive element out of engagement with the individual picture at the end of the pile upon completion of the picture-changing operation,
• a disabling apparatus connected with said individual picture transporting means to render the same inoperative,
• operating means connected with said disabling means and operated in response to relative sliding movement between the frame and slider and also including a manual control for manually disabling the individual picture transporting means,
• said individual picture transporting means including a roller having an axle and mounting means including slots for the axle running substantially parallel to the direction of the sliding, and a brake for the roller to restrict rotation thereof to facilitate transport of an individual picture, the mounting means for the roller being tiltable against a spring which urges the roller against the individual picture during the transport of the individual picture relative to the pile.

A picture viewer for a pile of pictures, comprising

• enclosure means including a frame defining a viewing window and a slider reciprocably mounted on the frame, the frame and slider having relative obverse and reverse sliding movements in opposite directions along the window, the enclosure means also defining a picture compartment having one end adjacent the window to contain a pile of pictures with a picture on one end of the pile disposed at said one end of the compartment and adjacent the window
• a picture-changing mechanism adjacent the picture compartment for removing an individual picture from one end of the pile and returning the individual picture to the other end of the pile in response to such relative obverse and reverse sliding movements of the frame and slider to present a new picture at the window for display,
• said picture-changing mechanism including a pile transporter on the slider and movable therewith and also including an individual picture transporter on the frame and movable therewith, the pile transporter being disposed at one side of the compartment to engage one side of the pile of pictures, the picture transporter being disposed at one end of the compartment to engage such an individual picture at the corresponding end of the pile of pictures, the pile transporter producing movement of the pile of pictures with the slider and away from the viewing window during changing of the picture at the window, and the individual picture transporter producing relative movement of an individual picture relative to the pile of pictures during the changing of the picture at the window and a disabling means including a disabling control movably mounted on the enclosure means at the exterior thereof and transporter and thereby permit the pile transporter to transport the entire pile away from the window in response to such obverse sliding movement of the frame and slider, the picture compartment being on the slider and moving therewith away from the viewing window for providing access to the pile of pictures in the compartment.