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A mounting unit (11) for a attaching a working unit such as a video projector to a mounting surface which can be horizontal or vertical or at some angle intermediate the horizontal and the vertical comprising: an anchorage (12) whereby the unit can be attached to the mounting surface; a beam (13); a

A mounting unit (11) for a attaching a working unit such as a video projector to a mounting surface which can be horizontal or vertical or at some angle intermediate the horizontal and the vertical comprising: an anchorage (12) whereby the unit can be attached to the mounting surface; a beam (13); a carrier (18) comprising in combination a holding plate (19) and a mounting plate; the carrier being adapted to provide for the attachment of a working unit to the mounting plate; a first pivot (20a) whereby a first end of the beam is pivotably attached to the anchorage to enable the beam to pivot about a first axis (a1); a second pivot whereby the other end of the beam to the first end is pivotably attached to the holding plate to enable the holding plate to pivot about a second axis (a2) parallel to the first axis; a third pivot (24) whereby the holding plate can pivot about a third axis perpendicular to the second axis; a fourth pivot (23) whereby the holding plate can pivot about a fourth axis (a4) perpendicular to the second and third axes; the carrier including mechanism whereby the mounting plate can be rotated about an fifth axis parallel to the holding plate.

대표청구항 ▼

A mounting unit (11) for a attaching a working unit such as a video projector to a mounting surface which can be horizontal or vertical or at some angle intermediate the horizontal and the vertical comprising: an anchorage (12) whereby the unit can be attached to the mounting surface; a beam (13); a

A mounting unit (11) for a attaching a working unit such as a video projector to a mounting surface which can be horizontal or vertical or at some angle intermediate the horizontal and the vertical comprising: an anchorage (12) whereby the unit can be attached to the mounting surface; a beam (13); a carrier (18) comprising in combination a holding plate (19) and a mounting plate; the carrier being adapted to provide for the attachment of a working unit to the mounting plate; a first pivot (20a) whereby a first end of the beam is pivotably attached to the anchorage to enable the beam to pivot about a first axis (a1); a second pivot whereby the other end of the beam to the first end is pivotably attached to the holding plate to enable the holding plate to pivot about a second axis (a2) parallel to the first axis; a third pivot (24) whereby the holding plate can pivot about a third axis perpendicular to the second axis; a fourth pivot (23) whereby the holding plate can pivot about a fourth axis (a4) perpendicular to the second and third axes; the carrier including mechanism whereby the mounting plate can be rotated about an fifth axis parallel to the holding plate. gnitude of force on the said primary tube than another fin by means of the length of one activation stem being shorter relative to the length of another activation stem. 7. An aircraft comprising a spiral inducing assembly, said spiral inducing assembly providing means by which the aircraft can be forced to travel in a spiralling motion during flight of the aircraft, and which spiral inducing assembly comprises a tube, a plurality of fins connected to the tube such that the fins can be rotated in a pivoting manner relative to the tube, and a fin rotating mechanism by which fin rotating mechanism the said fins can be rotated in the said pivoting manner in the same direction, which said tube is a primary tube, and which primary tube encircles part of the aircraft and is able to rotate relative to the encircled part of the aircraft, and which fin rotating mechanism is such that by means of the fin rotating mechanism the fins can be rotated in the said pivoting manner and in the same direction such that during flight of the said aircraft one of the fins can continuously exert a greater magnitude of force on the primary tube than can another of the said fins, with sections of the primary tube creased and wheels attached to creased sections of the primary tube such that the wheels are able to freely wheel on the creased sections of the primary tube. 8. An aircraft comprising a spiral inducing assembly, said spiral inducing assembly providing means by which the aircraft can be forced to travel in a spiralling motion during flight of the aircraft, and which spiral inducing assembly comprises a tube, a plurality of fins connected to the tube such that the fins can be rotated in a pivoting manner relative to the tube, and a fin rotating mechanism by which fin rotating mechanism the said fins can be rotated in the said pivoting manner in the same direction, which said tube is a primary tube, and which primary tube encircles part of the aircraft and is able to r