Abstract: An underwater toy includes a longitudinal body with a nose portion, an aft portion and an elastic element. A longitudinal tail with a first end is inserted into a substantially cylindrical portion of the longitudinal body. A second end of the longitudinal tail has an ejection opening for water. The first end includes a portion for sealing between the substantially cylindrical portion of the body and the first end of the longitudinal tail. The tail is thereby provided in the body and is movable in a longitudinal direction inside the body. A cavity is defined by the substantially cylindrical portion of the body and the longitudinal tail. The ejection opening for water is in fluid communication with the cavity. An elastic element is attached in the body and in the tail.

Abstract: Method of manufacturing a large-scale shell construction, wherein a form is sprayed with a setting construction material, such as concrete. The method comprises rotating the form about a rotation axis while applying said construction material. Preferably it also comprises suspending the form from above in a point through which the rotation axis runs. Furthermore, the method can comprise floating the form on a body of water.

Abstract: Method of manufacturing a large-scale shell construction, wherein a form is sprayed with a setting construction material, such as concrete. The method comprises rotating the form about a rotation axis while applying said construction material. Preferably it also comprises suspending the form from above in a point through which the rotation axis runs. Furthermore, the method can comprise floating the form on a body of water.

Abstract: Sulky comprising two wheels individually fastened along the same rotational axis, to a common structure provided with a driver's seat (4) and shafts (3) leading towards the draught animal. The sulky (1) consists of a construction kit comprising a plurality of substantially flat elements (2, 3, 4, 5, 6) adapted to be assembled by the end user by means of ordinary hand tools. Two of these parts are end frames (5) adapted for fastening of a wheel (2), a shaft (3), and the crossbar (6) in the same vertical plane.

Abstract: A resuscitation device having a specific frame design with an integrated hydraulic plunger frame which is adapted to be strapped over a patient's chest. The frame is designed with two protruding arms stretching towards the patient's armpits. The frame includes flexible straps coiled onto spring biased rotatable reels. The straps end in respective armpit stays which are looked into recesses in a back support. The plunger of the frame stops against a limiting means which limits the travel of the plunger automatically according to the size of the patient's chest.

Abstract: An exercise machine is disclosed, in which there is a frame, an exercise portion moveable with respect to the frame, weights raisable with respect to the frame, and a cable connecting the weights to the exercise portion. The force transmission mechanism between the weights and the exercise portion involves first and second pivot points mounted to the frame and spaced apart from each other in a plane substantially parallel to and spaced from the plane of movement of the exercise portion, and a third pivot point mounted to the exercise portion and moveable therewith. The cable is connected at one end to the frame, passing around one of the first and second pivot points, then to and passing around the third pivot point, then to and passing around the other of the first and second pivot points, thus defining a triangle with the third pivot point constituting a moveable apex, and then connecting at its other end to the weights.