Provided is a chair for a ship with horizontality maintaining structure for preventing passengers on board the ship from getting motion sickness by maintaining the horizontality of the chair installed in cabins and the like in response to wobbles of the ship. The chair for a ship with horizontality maintaining structure according to the present disclosure includes an external frame 10 which is installed in a fixing way on the hull floor; an internal frame 20 which is integrated inside the external frame 10 so that it rotates back and forth; a seat unit 30 which is integrated inside the internal frame 20 so that it rotates from side to side; and a horizontality maintaining means 40 which is formed in the lower part of the seat unit 30.

Provided is a chair for a ship with horizontality maintaining structure for preventing passengers on board the ship from getting motion sickness by maintaining the horizontality of the chair installed in cabins and the like in response to wobbles of the ship. The chair for a ship with horizontality maintaining structure according to the present disclosure includes an external frame 10 which is installed in a fixing way on the hull floor; an internal frame 20 which is integrated inside the external frame 10 so that it rotates back and forth; a seat unit 30 which is integrated inside the internal frame 20 so that it rotates from side to side; and a horizontality maintaining means 40 which is formed in the lower part of the seat unit 30.

An apparatus for supporting a flywheel on a floating vessel includes a support for the flywheel; and a tilt sensor for measuring an angle of slope relative to the Earth, the tilt sensor being arranged to detect a change of an angle of slope of the floating vessel relative to the Earth. The apparatus further includes a driver for manoeuvring the support relative to the floating vessel, based on the measured angle of slope from the tilt sensor, wherein the driver is operable to manoeuvre the support so as to counteract a change of an angle of slope of the flywheel relative to the Earth due to the detected change of an angle of slope of the floating vessel.

An apparatus for supporting a flywheel on a floating vessel includes a support for the flywheel; and a tilt sensor for measuring an angle of slope relative to the Earth, the tilt sensor being arranged to detect a change of an angle of slope of the floating vessel relative to the Earth. The apparatus further includes a driver for manoeuvring the support relative to the floating vessel, based on the measured angle of slope from the tilt sensor, wherein the driver is operable to manoeuvre the support so as to counteract a change of an angle of slope of the flywheel relative to the Earth due to the detected change of an angle of slope of the floating vessel.

The disclosure relates to a seat arrangement comprising a seat. The seat is arranged to be suspended on a support structure by a first resilient member and a second resilient member attached to opposite longitudinal and/or lateral sides of the seat. The first and second resilient members are attached to the seat at a seat end of the first and second resilient members and to the support structure at a support structure end of the first and second resilient members respectively. When a load causes translational and/or rotational movement of the seat in a y-z plane of the seat, elastic shear deformation in the first and second resilient members controls the translational and/or rotational movement of the seat.

This invention relates to a locking gimbal (10). More specifically, the invention relates to a locking gimbal (10) for automatically locking a gimballed object against motion arising from an external force (F.sub.E) applied thereto; and automatically releasing the gimballed object on removal of the external force (F.sub.E). The locking gimbal (10) includes a first object (12) pivotable about a first pivot axis (P.sub.F), a second object (14) movable along an arc cantered substantially at a second axis, a locking member (16) and a locking formation (18). The first object (12) defines a first reference axis (A.sub.RF) passing through the first pivot axis (P.sub.F) and a center of gravity (CG.sub.F) of the first object (12), whereas the second object (14) defines a second reference axis (A.sub.RS) passing through the second axis and a center of gravity (CG.sub.S) of the second object (14). The first and second objects (12, 14) are movable relative to one other between a first aligned condition, wherein the first and second reference axes (A.sub.RF, A.sub.RS) are substantially aligned, and a second displaced condition, wherein the first and second reference axes (A.sub.RF, A.sub.RS) are angularly displaced relative to one other. The locking formation (18), actuated by displacement between the first and second objects (12,14) is radially movable relative to the first pivot axis (P.sub.F) between engaged and disengaged position, wherein: (i) in the first aligned condition, the locking formation (18) is in a disengaged position and spaced from the locking member (16), permitting rotation of the first object (12) about the first pivot axis (P.sub.F); and (ii) in the second displaced condition, the locking formation (18) is in an engaged position and in contact with the locking member (16) thereby preventing rotation of the first object (12) about the first pivot axis (P.sub.F).

This invention relates to a locking gimbal (10). More specifically, the invention relates to a locking gimbal (10) for automatically locking a gimballed object against motion arising from an external force (F.sub.E) applied thereto; and automatically releasing the gimballed object on removal of the external force (F.sub.E). The locking gimbal (10) includes a first object (12) pivotable about a first pivot axis (P.sub.F), a second object (14) movable along an arc cantered substantially at a second axis, a locking member (16) and a locking formation (18). The first object (12) defines a first reference axis (A.sub.RF) passing through the first pivot axis (P.sub.F) and a center of gravity (CG.sub.F) of the first object (12), whereas the second object (14) defines a second reference axis (A.sub.RS) passing through the second axis and a center of gravity (CG.sub.S) of the second object (14). The first and second objects (12, 14) are movable relative to one other between a first aligned condition, wherein the first and second reference axes (A.sub.RF, A.sub.RS) are substantially aligned, and a second displaced condition, wherein the first and second reference axes (A.sub.RF, A.sub.RS) are angularly displaced relative to one other. The locking formation (18), actuated by displacement between the first and second objects (12,14) is radially movable relative to the first pivot axis (P.sub.F) between engaged and disengaged position, wherein: (i) in the first aligned condition, the locking formation (18) is in a disengaged position and spaced from the locking member (16), permitting rotation of the first object (12) about the first pivot axis (P.sub.F); and (ii) in the second displaced condition, the locking formation (18) is in an engaged position and in contact with the locking member (16) thereby preventing rotation of the first object (12) about the first pivot axis (P.sub.F).

A refuge unit has an outer structure and an inner structure. The inner structure is rotatable relative to the outer structure about an axis of rotation. The inner structure is capable of accommodating one or more people. The inner structure is biased toward a substantially constant rotational position about the axis such that if the axis lies in horizontal plane, a floor of the inner structure also lies in a horizontal plane. One or more doors are provided at respective opposite entrances to the unit.

A refuge unit has an outer structure and an inner structure. The inner structure is rotatable relative to the outer structure about an axis of rotation. The inner structure is capable of accommodating one or more people. The inner structure is biased toward a substantially constant rotational position about the axis such that if the axis lies in horizontal plane, a floor of the inner structure also lies in a horizontal plane. One or more doors are provided at respective opposite entrances to the unit.

Described are submersible assemblies including a support structure comprising a pair of flotation devices and a cabin pivotally coupled to the support structure between the pair of flotation devices having an outer enclosure encapsulating an inner cabin, wherein the cabin is configured to rotate between a raised position above a surface of a body of water and a submerged position, wherein at least a portion of the cabin is below the surface of the body of water, and wherein the inner cabin is configured to maintain substantially the same attitude as the support structure when the cabin rotates between the raised position and the submerged position.