Abstract: A magnetically operated latch includes one or two latching members, the or each member including a permanent magnet and being turnable or slidable between an engaging position and a disengaged position, and a further member of a magnetically soft material which attracts the magnet(s) to displace the latching member(s) into the engaging position(s). To disengage the latching member(s) a further magnet is brought to a position in which it acts repulsively on the permanent magnet(s) by way of the further member.

Abstract: A guiding pad for use in marking-out comprises a paper template 14 to one surface of one edge zone of which is adhered a foam plastics layer 6, upon the external surface of which is a medium tack adhesive layer 9 covered with a protective peel-off layer 10. On the other surface of the edge zone is a weaker adhesive layer 7 covered by a protective peel-off layer 8. One of the two surface portions of the template layer 14 not covered by adhesive have printed indications of an intended fold line of the layer 14 and of intended positions of striking plate screws of a magnetic latch, whilst the other of those two surface portions has printed indications of intended positions of latch body fixing screws and of a magnetically soft material rod.

Abstract: A magnetically operated latch includes one or two latching members, the or each member including a permanent magnet and being turnable or slidable between an engaging position and a disengaged position, and a further member of magnetically soft material which attracts the magnet(s) to displace the latching member(s) into the engaging position(s). To disengage the latching member(s) a further magnet is brought to a position in which it acts repulsively on the permanent magnet(s) by way of the further member.