Abstract: The sealing strip includes a first structural member for anchoring the strip to the edge of an opening, such as a door or a trunk or the like, of a motor vehicle body, a second deformable structural member for providing sealing along the edge of the door or the like closing the opening in the vehicle body and a continuous rib interconnecting the first and second structural members. The rib has dimensions and/or geometrical configuration and/or physical properties which vary along a longitudinal axis of the strip.

Abstract: An emergency device is provided to enable a number of people to be transferred between two areas far apart from each other. The device includes a flat relatively stiff plate capable of being rolled up upon itself and susceptible of longitudinal and transverse deformations according to curvilinear profiles, and plate-deforming elements to change the plate from a flat configuration to an operational one including successive transversely oriented hollow portions. The deformation elements can be a waterproof fabric layer joined to the plate sides and provided with tubular ducts extending over the entire length of the plate. Under operating conditions, the plate is unrolled and the tubular ducts are inflated with pressurized fluid to deform the plate according to the successive hollow portions. The upper layer of the fabric can form an emergency slipway for a plurality of people and the lower hollow-shaped plate can provide a slipway for moving articles.

Abstract: A gas mask is provided which includes a facepiece including a front portion of semi-rigid rubber highly resistant to chemical agents and a sealing skirting of soft rubber having a high mechanical resistance, co-vulcanized with the front portion of the facepiece. A nozzle, connected to a half mask situated inside the facepiece, is tightly fastened to the front portion of the facepiece. An inflow opening and an outflow opening are provided which are substantially coaxial and are located in the lower portion of the nozzle. The inflow opening places the interior of the facepiece into communication with the external atmosphere and the outflow opening places the interior of the half mask into communication with the external atmosphere through an inflow chamber and an outflow chamber which are separated by a partition. The inflow chamber communicates bilaterally with a space located between the half mask and the facepiece.

Abstract: A device associated with a gas mask suitable for introducing liquid substances to the user of the mask. The liquid substances are contained in a container provided with a penetrating or syringe-shaped nozzle. The device comprises a tubular conduit inside the mask having at least one elbow portion elastically deformable from a first idle position to a second position at or adjacent the user's mouth and vice versa, respectively, when the penetrating nozzle is introduced inside the conduit through the entire elbow portion and withdrawn from the same elbow portion.

Abstract: A pneumatic tire for motor vehicles has a low absorption of horse-power. The tire has an annular tread reinforcing structure disposed in the crown which comprises two layers of rubberized fabric with metallic cords having a diameter of not more than 0.603 mm embedded therein; the radial reciprocal distance between the centers of two facing cords in the radial direction on the cross-section of the tire is not over 1 mm.

Abstract: A flexible belt, made of an elastomeric material, comprising an annular body, delimited by two base surfaces and by two lateral sides; at least one of the base surfaces disposed with a predetermined winding arc around a pulley from which it receives or, to which it transmits, motion by friction. The sides of the annular body are inactive for transmitting the forces by friction. The belt that is for example, flat, is extensible, and it comprises at least one group of three layers in direct contact with one another, each layer of which includes or comprises reinforcing fibers disposed in a single predetermined direction. In the reinforcing structure no inextensible cords are present. The belt may comprise an annular element on at least one of the base surfaces of the annular body, for opposing any lateral shifting relative to the transmission pulley.

Abstract: A V-belt (1) comprising at least three layers (2, 3, 4) of elastomeric material embedding discontinuous fibers (5, 6, 7); one of the layers (2) comprises fibers (5) directed transversally to the belt longitudinal direction and the two remaining layers (3, 4) comprise fibers (6, 7) mutually inclined in opposite direction with respect to the belt longitudinal direction X--X, the layers in which the fibers are inclined in the belt longitudinal direction having an equal extensibility. The three layers are in direct mutual contact and the belt is devoid of inextensible longitudinal reinforcement strands or the like. In some embodiments, the belt may be part of a two-pulley transmission, in particular for stepless speed change gears, where only one pulley is of the expanding type.

Abstract: An oleoelastic energy accumulator includes a rigid casing, at least one membrane of a polymeric material having a high deformability, and a liquid. The membrane has a curvilinear form, e.g., convex, toward the inside of the casing to the borders of which the membrane is tightly sealed for delimiting or defining a closed space occupied by the liquid. In correspondence with the pressure variations in the liquid, the membrane acts like a piston and passes from an at-rest, curvilinear configuration, to a final substantially flat configuration as a result of gradual and successive compression of the membrane which, in this manner, accumulates energy.

Abstract: Belt (1) of flexible polymeric material, in particular an elastomeric material, for the transmission of motion between two pulleys (6), comprising at least one longitudinal slot (2) defined by a bottom (3) and two lateral walls (4, 5). The belt passes from a first position in which the walls (4, 5) of the slot (2) are at a certain distance from the opposite lateral surfaces of the pulley, to a successive position during the winding of the belt around the pulleys, whereby the pull exercised on the inextensible reinforcing elements (7) of the belt leads to the approach of the slot walls to the opposite lateral surfaces of the pulley (6), resulting in the transmission of motion through friction.

Abstract: V-belt of flexible polymeric material, in particular elastomeric material, comprising at least in the portion whose ends are destined to contact the pulley a plurality of layers, each one having fibers oriented in a single direction. The layers are alternately overlapped, some with the fibers oriented substantially in a longitudinal direction, the others oriented in a substantially transverse direction, the thickness of each layer being less or at most equal to the average length of the fibers present in the layer. Preferably, the V-belt is a cogged or toothed belt.

Abstract: Elastic joint for the transmission of motion between two shafts, comprising two supports, a driving support and a driven support, associated with the shafts and at least two arms for each support. The joint comprises at least one single element for connecting the two arms, this element being in the form of a closed annular strap of inextensible and flexible material. The strap can be disposed on a plane separating the two supports at a position substantially central to the joint so as to form a polygon whose vertices are the ends of the arms belonging alternatively to the driving support and driven support.

Abstract: A toothed-belt and toothed-pulleys transmission including means for widening the teeth of the toothed-belt, said means corresponding to the top of each belt tooth and the base of each toothed-pulley groove.

Abstract: A toothed belt constituted by an annular body of elastomeric material, having a structure that is resistant to tensile stress embedded therein and having a toothing on one of its faces. The teeth of said annular body have at least one slot corresponding to their own top.

Abstract: A belt for transmitting motion between two pulleys comprising an annular body of elastomeric material, at least a plurality of openings aligned in the longitudinal direction of the belt for engaging with corresponding protuberances on the pulleys, continuous elongated elements resistant to traction and directed in the longitudinal direction of the belt, and reinforcing elements directed along two directions, symmetrically inclined to each other with respect to the longitudinal direction of the belt.

Abstract: The invention relates to an antivibration device particularly adapted for mounting motorcar engines, comprising a shaft (2) fixed to a base and supporting above it a metallic plate (3), fixing one extremity of a metallic container cylinder (4) inside which there is axially positioned a shaft (5) bearing the static work preload by means of a spacer spring (7) interposed between the plate (3) and a plate (6) held at one extremity of the same shaft (5), rigid revolving elements (9) being disposed between a viscoelastic material rolling race (10), preferably sheathing the shaft (5), and a metallic sliding race (8) consisting of a groove made in the inner wall of the container cylinder (4) in which the said rigid revolving elements are housed.

Abstract: An oscillation damping device having a differentiated action in the two directions of sliding of a rigid stem with respect to a rigid case, comprising a plurality of rigid rolling elements, interposed between a rolling race of viscoelastic material and one or more skidding metallic races, shaped in such a way that upon moving the stem in one direction, the rolling elements are encased within said metallic races, spaced out from the viscoelastic race and exert a limited braking effect, while upon moving the stem in the opposite direction, the rolling elements are advanced into interference with the viscoelastic race and thereby exert a strong braking effect.

Abstract: A continuous driving belt, adapted for transmitting movement between two elements, each one of which is rotatable around an axis and which is provided with pins projecting in the radial direction with respect to said axis, which are adapted for insertion into corresponding holes made in the belt itself. Said belt is constructed with a primary, deformable polymeric material having a Shore-A hardness greater than 75 degrees, and is provided with a reinforcing structure that comprises a plurality of annular elements which are embedded in said primary material and which are constructed out of a secondary material that presents an elongation substantially less than that of said primary material. The annular elements lie on planes that are substantially parallel to the longitudinal plane of the mid-plane of the belt itself.

Abstract: A driving belt pulley provided with dowels protruding in the radial direction with respect to its axis, and adapted for insertion into corresponding holes in the belt itself. The belt pulley comprises a supporting surface for the belt, the width of which--measured in the direction of said axis--is between two and four times the dimension of the root-section of one of said dowels measured in the direction of said axis, while the dimension of the root-section of each one of said dowels measured in the direction orthogonal to the previous one is between 3/10 and 8/10 of the distance between the axes of two of said contiguous dowels measured in respect of their root-section.

Abstract: A toothed-belt and toothed-pulleys transmission including means for widening the teeth of the toothed-belt, said means corresponding to the top of each belt tooth and the base of each toothed-pulley groove.

Abstract: An elastic joint for the transmission of motion between a driving shaft and a driven shaft, comprising in effect two tetrahedrons joined together along one edge.The two tetrahedrons are constituted by eight edges formed by flexible elements resistant to tensile stresses; the furthermost edges and the joining edge are formed of material resistant to compression stresses.