G - Physics – 02 – B
Patent
G - Physics
02
B
88/7, 270/52.5
G02B 27/02 (2006.01) A47G 1/14 (2006.01) B42F 7/14 (2006.01) G03B 21/00 (2006.01) G03B 23/02 (2006.01) A47G 1/06 (2006.01)
Patent
CA 1143970
ABSTRACT A picture viewing device has a housing for accommodating a pile of pictures with the uppermost picture lying beneath a housing window. A slider member may be pulled out of the housing and reinserted parallel to the viewing window. A picture change mechanism consists of a transporter by means of which a picture can be removed from one side of the pile as the slider member is withdrawn and is guided to the other side of the pile again as the slider member is pushed in. A retaining device prevents the remainder of the pile from being transported and an externally operable device disables the picture change mechanism for the removal of the entire pile out of the housing by means of the slider member. The retaining device is in the form of a separator on the slider member and the transporter is in the form of retentive elements on an arrangement located in the housing under spring bias. The pressure arrangement comprises a plate supported by springs the plate being of dimensions substantially corresponding to the size of the pictures, and on which the retentive elements are arranged. The use of a pressure plate made of plastics material in conjunction with metal springs alloys inexpensive manufacture since the expensive spring materials are used only where really constant resilience is required.
349389
Fetherstonhaugh & Co.
Licinvest Ag
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