Abstract: An engine mounting structure characterized in that a shock and vibration insulating unit and a vibration cancelling device are provided operatively in parallel with each other between the body structure of an automotive vehicle and the engine mounted on the vehicle body structure, wherein the vibration cancelling device comprises at least one rigid elongated bar having one end portion pivotally engaged by the body structure of the engine and a longitudinally intermediate portion pivotally engaged by the vehicle body structure, and a mass or counterweight member carried by another end portion of the elongated bar whereby the vibrations to be transferred through the shock and vibration insulating unit are at least partially cancelled by the vibrations to be transferred through the vibration cancelling device.

Abstract: A side bearing comprises integrally bonded pieces including an elastomeric cushion member secured to top and bottom plates and flexible leveling means secured to the bottom plate. The bearing is designed for connection between the bolster and truck side frames of a railway car. The elastomeric member includes progressively larger openings therein extending from its center to its ends to provide varying flexibility to permit articulation of the truck side frames relative to the bolster during operation.

Abstract: A shock absorber apparatus connected in series relationship respective to the polished rod and bridle of a pumpjack unit. The shock absorber includes a housing within which there is supported a plurality of resilient packer members stacked in sandwiched relationship. The packer members have an axial passageway formed therethrough, with the passageway of each packer member being aligned with one another, so that the polished rod is telescopingly received therethrough. The bottom of the housing is supported by the bridle, while the polished rod is supported by a plate member which bears against the uppermost packer member. This places all of the resilient packer members in compression, with the force of the compression being proportional to the weight of the sucker rod.

Abstract: A damping device comprising a first element in the form of a bolt whose central rod portion, as a spring, forms a primary load path between structural elements between which the damping device is mounted, with a damping element of viscoelastic material loaded in shear between a pair of sleeves and forming a secondary load path, in parallel, with the primary load path to damp vibrations in the structural members.

Abstract: The disclosed invention is an elastomeric compression member having particular utility as a marine fender. It is comprised of two elastomeric offset legs joined at the knee and extending therefrom in opposite directions. When compressive forces are applied to the feet of the member, the member initially compresses by roll compression, where the two legs roll around the knee to provide the member with an overall cylindrical configuration. After roll compression is complete, snub compression, compression of the resulting cylinder occurs.

Abstract: A binding device for hoses floating on the water surface, particularly, for a plurality of hoses arranged in parallel and floating on the water surface and connecting adjacent two hose lines by chains, comprising a resilient cylindrical cushioning body having a center bore surrounding the chain and including a buoyant member and reinforcing element embedded therein.

Abstract: An isolator designed to prevent transmission of shock and vibration from one structure to another, comprising a device structured to provide orthogonal excursion in three directions and comprising a plurality of nested, concentrically-arranged component structures, each of which is structured to permit orthogonal excursion and a connector element for securing structures in nested parallel relation so that the composite resistance to displacement is the sum of the resistances of the individual components. The component structure may decrease in size from the outside to the inside or be all of the same size.

Abstract: An elastically yieldable block structure comprising a block of elastomer interconnecting two armatures and defining at least two cavities which are filled with liquid and communicate with each other. One cavity is a main center cavity which is provided in the block and has walls which have a high resistance to the inner pressure of the liquid and the other cavity is a lateral cavity which communicates with the center cavity. At least a part of the lateral walls of the lateral cavity or cavities has a low resistance to the inner pressure of the liquid.

Abstract: In the illustrated embodiments, an elastomer body has a relatively thin metal layer overlying the elastomer surface to be loaded so as to prevent adhesion at the elastomer surface in spite of a long period of dwell in contact with a relatively more rigid cooperating part such as a hard rubber stop. In a basic form, a thin metal sleeve may encircle a cylindrical elastomer body. The outer surface of the sleeve may be grooved for extra adhesion resistance. In a further development, the sleeve is formed as a helical wire spring which may be confined between two flanges integral with the elastomer body.

Abstract: A central articulation with pivot axles standing perpendicularly to one another for a self-driving articulated vehicle comprising two parts which are mutually moveable with respect to one another, whereby the steering is brought about by mutual pivoting of the two vehicle parts with respect to one another about a vertical axle of the central articulation and the adjustment of the vehicle to the unevenness of the ground is brought about by a mutual pendulum course of movement of the two vehicle parts with respect to one another about an axle which is horizontal in the longitudinal direction and a restoring device counteracts the pendulum course of movement of the front car and of the rear car by means of compression springs. Rubber hollow springs are prestressed by means of a tensioning device.

Abstract: A sound dampening fastening element includes a sound dampening body, an anchoring member and a support member. The dampening body is prism-shaped and formed of a resilient material. The anchoring member has a head and a shank with the head and a portion of the shank embedded within the dampening body and the remaining portion of the shank extending outwardly from the dampening body. The support member is partly embedded within the dampening body and the remaining part extends outwardly from the opposite side of the dampening body from which the shank extends. The support member has a shaped configuration with wall sections within the dampening body combining to form an opening through which the shank extends. The diameter of the opening is greater than the diameter of the shank but smaller than the diameter of the head of the anchoring member. The part of the support member extending outwardly from the dampening body includes openings for receiving a belt-like support element and also a threaded opening.

Abstract: A phonograph record turntable assembly comprises a rotatable turntable having on its upper surface a plurality of elastically flexible, upwardly dished record support members which are engageable, at their peripheries with the undersurface of a phonograph record for each defining an enclosed space therebetween, and each record support member has at least one air passage opening from the respective enclosed space to the atmosphere. When a warped or distorted phonograph record is placed on the aforesaid turntable assembly, the several elastically flexible support members conform to the shape of the undersurface of the record for uniformly supporting the latter, and vibrations of the record are damped by the viscous resistance to flow of air through the air passages of the record support members into and out of the enclosed spaces defined between such support members and the phonograph record.

Abstract: Apparatus for dampening the closing of a heavy door of the type mounted along a hinge axis on a heavy movable member such as a digging bucket for a shovel, said dampening apparatus comprises a crank pivotally mounted intermediate its ends on said movable member adjacent said hinge axis, linkage means pivotally mounted adjacent one end thereof on said door and pivotally connected adjacent an opposite end to one end of the crank, a cushioning device having a lower pivotal connection pivotally connected to the crank at the end thereof opposite from the first-mentioned end and an upper pivotal connection pivotally connecting the cushioning device to the movable member, and the cushioning device comprises a telescopic rubber snubber.

Abstract: A deep well elastic-tensile energy storage tool provided for incorporation in a drill string just above a fishing tool assembly, the latter embracing a fishing tool for directly engaging the fish, a conventional jar and one or more drill collars in the order named; said energy storage tool incorporating a cylindrical tubular column of molded polyurethane which is compressible axially one-twelfth its length to develop therein an internal reaction force of up to 125,000 pounds which is released by the jar for sudden application to the fish in a jarring operation.

Abstract: A helicopter having a lift unit including a multiblade helicopter main rotor system and a nodalized module including a beam driven in response to blade developed vertical forces has a fuselage unit connected to the beam only at vibration nodal points along the beam. The coupling between the lift unit and the fuselage comprises two rigid arms which form the beam and which extend toward one another from the nodal points. A multilayered flexible beam section interconnects the arms to accommodate beam bending in the flexible section. A rigid member is attached to each of the arms at drive points intermediate the nodal points in supporting relation from the lift unit.