Abstract: A magnetically-activatable sheet product is provided comprising a pair of laminated outer sheets at least one of which is provided with a pigment/binder primer coat on its inward facing surface, between which is a magnetic layer comprising magnetically-activatable particles in a binder matrix, the outer sheets having sufficient opacity to mask the appearance of the magnetic layer.

Abstract: A magnetically-activatable sheet product is provided comprising a pair of laminated outer sheets at least one of which is provided with a pigment/binder primer coat on its inward facing surface, between which is a magnetic layer comprising magnetically-activatable particles in a binder matrix, the outer sheets having sufficient opacity to mask the appearance of the magnetic layer.

Abstract: There is disclosed herein a descent device (10) comprising a hollow spool (12) rotatable about a rotational axis (14) and a lifeline, in the form of a braided steel cable (not shown), wound about the spool (12). A centrifugal brake mechanism (18) including a brake assembly, comprising a pair of brake shoes (20) and associated brake pads (21), is engageable with the spool (12) to apply a braking force to the spool (12) as the spool (12) rotates. Biasing members, in the form of a compression springs (22), extend between the brake shoes (20) for biasing the brake shoes (20) and pads (21) into engagement with the spool (12).

Abstract: A system used in a remotely controlled firearm device includes a circular gear and two worm gears. The worm gears engage the outer diameter of the circular gear and rotate synchronously to rotate the circular gear to align the firearm device with a target. Once the firearm device is aligned, the circular gear is locked into a fixed position that does not have any hysteresis by rotating the two worm gears asynchronously.

Abstract: A thermal ink which comprises a colour former, a colour developer and a sensitizer, characterised in that the colour former comprises 3-dibutylamino-6-methyl-7-anilinofluoran; the colour developer comprises bisphenol A; and the sensitizer comprises dimethyl terephthalate; and that the ink also comprises at least one pigment. This ink may be used in thermal papers to reduce unwanted discolouration during storage.

Abstract: A method of preparing a thermally printable sheet which comprises providing a substrate comprising a base sheet having at least one surface coated with a layer containing a pigment in solid porous particulate form, and, using a printer, printing onto the coated surface of said substrate, a thermal ink which comprises a colour former, a colour developer and a sensitizer, characterised in that the sensitizer comprises dimethyl terephthalate, and that the ink also comprises at least one pigment. A novel thermally printable sheet suitable for use in such method is also provided.

Abstract: A system used in a remotely controlled firearm device includes a circular gear and two worm gears. The worm gears engage the outer diameter of the circular gear and rotate synchronously to rotate the circular gear to align the firearm device with a target. Once the firearm device is aligned, the circular gear is locked into a fixed position that does not have any hysteresis by rotating the two worm gears asynchronously.