G - Physics – 03 – B
Patent
G - Physics
03
B
95/35, 314/40
G03B 15/00 (2006.01) G03B 27/62 (2006.01)
Patent
CA 1069366
Abstract of the Disclosure A copying device provided with a glass plate and a co-operating cover and an improved locking mechanism for said cover comprising at least a permanent magnet combined with an electromagnet connected to a control circuit wherein the permanent magnet keeps the cover in the closed position against the glass plate, and at the end of the copying run the electromagnet is activated with a magnetic field thereby releasing the cover. This improved locking mechanism has the advantage over known mechanical mechanisms in that there is no wear on the components thereby increasing its reliability
267821
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