Abstract: Strip resonator for a mechanical watch movement, comprising a structure, an oscillating inertial element, and elastic strips forming a flat bearing for the inertial element, and a flat, anti-shock device arranged to protect each strip from rupture in the event of a shock, and including a first prestressed flexible element arranged to allow a variation in length during the expansion or contraction of a strip within a range of lengths corresponding to normal operation of this strip under the action of a stress of intensity lower than a first threshold, and to prevent the expansion or contraction of this strip when it is subjected to a tensile or respectively compressive stress of intensity higher than the first threshold, and the resonator includes, for the three-dimensional anti-shock protection of the strips, in an axial direction perpendicular to a main plane, axial protection means, which include, on the one hand, axial banking members for limiting the axial travel of at least one inertial element, and on t

Abstract: A transmission main shaft centering device is provided for use between a transmission input shaft and the main shaft. The centering device includes an axially moveable support member having an axis that is substantially coaxial with an axis of the input shaft. The support member is biased into engagement with one of the input shaft and the main shaft to maintain the main shaft substantially coaxial with the input shaft. The support member may include a first engaging component and one of the input shaft and the main shaft may include a second engaging component. The first and second engaging components mate to maintain the main shaft substantially coaxial with the input shaft.

Abstract: A transmission main shaft centering device is provided for use between a transmission input shaft and the main shaft. The centering device includes an axially moveable support member having an axis that is substantially coaxial with an axis of the input shaft. The support member is biased into engagement with one of the input shaft and the main shaft to maintain the main shaft substantially coaxial with the input shaft. The support member may include a first engaging component and one of the input shaft and the main shaft may include a second engaging component. The first and second engaging components mate to maintain the main shaft substantially coaxial with the input shaft.

Abstract: An outboard motor having an improved arrangement for supporting and preloading a thrust bearing of a driveshaft. The preloading device comprises a plurality of relatively small diameter stiff coil springs that encircle the driveshaft and place a compressive force on the thrust bearing.

Abstract: A bearing assembly for mounting the movable member of a measuring instrument includes a bearing element engaging the movable member, a spring member applying a force to the bearing element in a direction toward the movable member, and a shock absorber fixed in the assembly operating as an abutment against which the bearing element is urged by the spring member. A liquid damping system provided in the assembly is formed by a first chamber located on the bearing side of the bearing element and a second chamber located on the opposite side of the bearing element with one or more passages being provided for the damping liquid to flow between the first and the second chamber during displacement of the bearing element, the passage being proportioned relative to the bearing element such that only a relatively small damping force is applied against the bearing element during displacement thereof.

Abstract: A thrust bearing device including a bearing oil tank containing a lubricating oil, a plurality of bearing shoes for slidably journaling a rotary member located in the bearing oil tank, the bearing shoes each being segmental in shape, and a support device for the bearing shoes. The support device for the bearing shoes is interposed between the bearing shoes and the bottom of the bearing oil tank and immersed in the oil, including pressure receiving members each having spread-apart two legs, and resilient members. The pressure receiving member are each formed on its upper surface with a portion for supporting the associated bearing shoe and on its undersurface with the spread-apart two legs, one of the shoes being constructed to receive a lower thrust load than the other leg. The resilient members are each located beneath the leg of the associated pressure receiving member that has the lower thrust load applied thereto.