Abstract: A construction set comprises a plurality of elements mutually co-operable to produce at least one assembly, wherein the elements comprise a plurality of connectors (100, 100?) each comprising a substantially cylindrical body and a hollow base, the body being provided with a radially extending cylindrical projection (130?) and the base with at least one groove (131?) and the projection and the groove being shaped to permit assembly of two such connectors (100, 100?) in mutually orthogonal relationship by engagement of the projection of one of those connectors in the at least one groove of the other one of those connectors.

Abstract: A wheel assembly and a wheel are suitable for use with a mobile platform. The wheel assembly comprising a first wheel and a second wheel, each wheel comprising a hub having a central axis of rotation, and at least two wheel lobes coupled to the hub, the wheel lobes extending radially from the hub and spaced around the central axis of the hub, where the first wheel is rotatably mounted to the second wheel on a common axis, and a control mechanism rotates the first wheel with respect to the second wheel.

Abstract: The invention relates to a construction set made of a plurality of different members interacting together for assembly, characterized in that one so-called connector member (100) among said members has an essentially cylindrical body with a cylindrical surface (110) that is preformed in order to interact for assembly with the correspondingly preformed bases (120, 130) of other connector members (100). The construction set includes a plurality of other constitutive members.

Abstract: A wheel assembly and a wheel are suitable for use with a mobile platform. The wheel assembly comprising a first wheel and a second wheel, each wheel comprising a hub having a central axis of rotation, and at least two wheel lobes coupled to the hub, the wheel lobes extending radially from the hub and spaced around the central axis of the hub, where the first wheel is rotatably mounted to the second wheel on a common axis, and a control mechanism rotates the first wheel with respect to the second wheel.

Abstract: The invention relates to a construction set made of a plurality of different members interacting together for assembly, characterized in that one so-called connector member (100) among said members has an essentially cylindrical body with a cylindrical surface (110) that is preformed in order to interact for assembly with the correspondingly preformed bases (120, 130) of other connector members (100). The construction set includes a plurality of other constitutive members.