Abstract: An improved throttling bushing for a seal is used in a machine which has a casing and a shaft journaled in the casing. The throttling bushing reduces the flow of cooling and flushing fluid by maintaining a closer tolerance at the throttling bushing by using a labyrinth mounted on the shaft or a sleeve attached to the shaft, and an elastic bushing attached to the casing and positioned around the labyrinth. The clearance between the elastic bushing of the labyrinth is dimensioned to provide noncontact clearance prior to assembly.

Abstract: A single or multiple stage mechanical seal assembly in which one seal ring is resiliently coupled to a rotatable shaft and the other seal ring is resiliently urged toward the first seal ring by axially-arranged identical springs received in spring pockets in a spring retainer, some pockets opening at one radial surface of the retainer and others opening at the other radial surface of the retainer. The outer surfaces of the seal rings are protected against deflection by being encircled by cylindrical members and one seal ring is resiliently coupled to its encircling cylindrical member. A balance sleeve means partly supports the axially movable seal ring and is capable of angular adjustment to compensate for shaft misalignment.

Abstract: A seal for use on the tapered section of a roll neck in a rolling mill. The seal has a flexible circular body with a circular lip and a circular flange at one end thereof. The lip extends axially from the body and the flange extends radially from the body and normal or perpendicular with respect to the body axis when the seal is in an unstressed condition. The seal is adapted to be axially received on and to be radially stressed by the tapered roll neck section with an accompanying radial expansion of the lip which produces a circumferential bending moment tending to angularly distort the flange from its perpendicular orientation to the seal axis. An internal circular shoulder on the seal body, coacts with the tapered roll neck section to counteract the bending moment and thereby prevent distortion of the flange.

Abstract: A circular coolant seal has a base flange arranged in a base plane perpendicular to the seal axis. A flexible resilient sealing flange is integrally joined at one edge to the base flange and terminates at its opposite edge in a sealing lip located in a sealing plane parallel to and spaced axially from the base plane. The sealing lip has a first portion extending from the base flange angularly away from the base plane and inwardly towards the seal axis to an intermediate hinge portion, and a second portion extending from the hinge portion away from the seal axis and angularly towards the sealing plane. The configuration, flexibility and resilience of the sealing flange is such that axial displacement of the sealing lip in relation to the base flange is accompanied by both axial and radial displacement of the hinge portion.

Abstract: A sealing arrangement is provided for a housing. The sealing arrangement includes an elastically deformable sealing member and a flexible diaphragm member that receives the sealing member. The sealing member is disposed along a defined sealing path of the housing. A clamping element is fastened relative to the housing and applies a clamping force to the diaphragm member. The diaphragm member includes predetermined structural features for providing predetermined deformation of the sealing member, thus providing controlled sealing characteristics while accommodating dimensional variations of the housing, the clamping element, and the clamping locations for the housing relative to the sealing surface. The sealing arrangement also limits and controls the contact stress on the housing due to the clamping force applied between the housing and the clamping element.

Abstract: Method and apparatus for establishing a seal across the annulus between two concentric rigid members to seal the annulus against large fluid pressures. A specially formed seal ring, advantageously of low carbon steel in the annealed state, is preliminarily inserted into the annular space between two concentrically opposed surfaces, then forced further into that annular space to force the sealing ring, with accompanying plastic deformation of a portion of the ring, into sealing engagement with both of the concentrically opposed surfaces.

Abstract: A method and apparatus for power recovery from thermal input. A turbine is disclosed as employing two rotors for two gas cycles, one using a high boiling point fluid and the other using a low boiling point fluid such as steam and butane, respectively. Separation of the fluids is accomplished through mutual collection and selective withdrawal from accumulator tanks. Seals are also disclosed which employ both air and the higher boiling point fluid as a means for preventing the contamination of bearing lubricants by the low boiling point fluids.

Abstract: This invention is a sporting events flag, that includes a fabric flag attached to a flagstaff shaped like numeral "1", and a structure for supporting it, in use, on an automobile.

Abstract: A turbo-machine comprises means for securing a fluidtight seal to the shaft thereof including a segment in the shape of a sector of a ring located in a groove formed in the wall of the shaft, the groove and the sector being of complementary shape. The radially outer surface of the sector is in tight contact with the radially inner surface of a part of the seal carrying lips which in turn provide a sealing effect by close proximity to an opposed surface of the seal on another part of the turbine. The segment is made rigid with the shaft by detachable means which pass through the lip carrying member and into the sector. In order to prevent both axial and rotational motion of the sector relatively to the groove, the mating surfaces are toroidal and eccentric with respect to the common axis of the segment and of the shaft.

Abstract: The shaft seal construction is employed in a bin level indicator between the housing and the rotatable shaft thereof. The housing has an enlarged bore therein concentric with the shaft. A composite pressure sealing ring is disposed in sealing relation between the shaft and the bore. Such ring has a rubber-like pressure sealing ring member facing forwardly and a metal backing ring member behind the rubber-like ring member and preferably bonded thereto. The rubber-like ring member has a peripheral surface in sealing engagement with the bore, and a forwardly projecting annular sealing lip in rotary sealing engagement with the shaft. The metal backing ring member has a peripheral surface compressibly engaging the bore with an interference fit therebetween. A rubber-like vacuum sealing ring is disposed behind the metal backing ring member and is provided with a first frusto-conical sealing lip, engaging the backing ring member, and a second annular sealing lip in sealing engagement with the shaft.

Abstract: Vibration and stability of a primary seal ring 18 is controlled by a secondary seal system 24. An inflatable bladder 26 which forms a portion of secondary seal varies the damping applied to this seal ring.The amplitude of vibration of the primary seal ring 18 is sensed with a proximity probe 34 that is connected to a microprocessor in a control system 32. The bladder pressure is changed by the control system 32 to mitigate any sensed instability or vibration.

Abstract: A split rotary seal ring is cut from an integral workpiece by forming a kerf which is inclined at a constant angle with respect to axial faces of the workpiece, thereby cutting the workpiece into two mating seal ring segments. The kerf is shaped to provide a 360.degree. radial interlock between the two seal ring segments. The two segments are then moved axially with respect to one another to close the kerf, and one or both of the axial faces are then finished to provide the seal faces of the seal ring. This geometry and method result in a seal ring in which neither the inner nor outer cylindrical surfaces must be refinished after the original one piece workpiece has been split into the two seal ring segments.

Abstract: A resilient gasket is disclosed which includes an annulus of generally U-shaped cross sectional configuration having a circular, arched, radially outwardly positioned base, a first, thin, forward wall extending radially inwardly from the base, a second relatively thick, rearward wall extending radially inwardly from the base, the forward wall and the rearward wall defining a circular, radially inwardly open, retaining ring receiving groove therebetween, the width of the groove being greater than the combined thickneses of the forward and the rearward walls. The forward wall and the rearward wall each terminate radially inwardly in a slanted, forwardly facing lip to facilitate sealing engagement with the spigot end of a section of pipe. The lip of the forward wall serves to center and to wipe the exterior periphery of the spigot end and the lip of the rearward wall serves to seal against the spigot end.

Abstract: The invention is a seal for the gap between two parts which may or may not rotate with respect to each other which seal comprises a body of flexible material placed in a groove of one part and having a lip pressed against the surface of the other part, said lip having a reinforcement of a more rigid material which towards the surface engaged by the lip has ridges of a smaller surface area than the areas turned away from said surface, said reinforcement eventually extending through some or all other parts of the seal to prevent extrusion into the gap.

Abstract: A spring expander for oil control piston rings incorporates two spring mechanisms. One spring mechanism produces circumferentially directed hoop stress in the expander body when the expander body itself is contracted. A second radially acting spring mechanism is provided by circumferentially spaced spring fingers which radially deflect. Because the two spring mechanisms act together, the expander has a combined spring rate which is lower than the spring rate of either the circumferential spring mechanism or the spring rate of the radial spring mechanism. The expander also has expansion stops which limit the radial expansion of the spring fingers, and thereby limit the expansion of the associated rail ring to reduce pop-out during assembly. Contraction stops limit radial contraction of the rail ring with respect to the expander and maintain a clearance between the expander and the cylinder wall.

Abstract: A two element, high and low pressure seal assembly to be used in a hydraulic or pneumatic sealing environment between two relatively movable machine parts, the seal assembly comprising a spring element, circular or rectangular in cross-section and made of a relatively soft elastomeric material, and spring element being substantially contiguously surrounded along all but a small exposed area and contained within an annular slot of a house-shaped elastomeric annular sealing member whereby an integral assembly is formed for easy installation and unitary response. The house-shaped sealing element comprises a central body from which two anti-extrusion legs radially extend. The legs are located fore and aft of the spring element within an annular peripheral groove in one machine part and are disposed perpendicular or radial to the axis of said machine part.

Abstract: Valve packing comprising one lower, adjustable, compressible, solid ring set followed by an upper, non-adjustable, pre-compressed, flexible, plastic v-ring set; both packing sets inter-spaced by a slidable gland having an additional outer elastomeric seal, said gland being able to compress said solid ring set without changing the geometry of the v-ring set.

Abstract: A system for submetering artificial energy consumption in a multi-user environment in which a single central system source services the several separate users by means of individual space conditioning subsystems is disclosed which enables accurate proportioning of subsystem energy consumption by monitoring the time intervals of the OFF/ON status of each individual space conditioning subsystem along with the temperature of the conditioned space and utilizes the monitored time intervals and temperature in conjunction with the relative heat capacity of each individual conditioned space to determine the heat consumption of each subsystem relative to all the subsystems served by the central source.

Abstract: A seal back-up assembly adapted for use in preventing the extrusion of the cap seal of an elastomer energized seal into the extrusion gap between two mating surfaces which are being sealed by the elastomer energized seal. One of the mating surfaces has a groove with side walls in which the elastomer energized seal is housed. The elastomer energized seal includes a cap seal and an elastomer energizer. The seal back-up assembly includes first and second back-up elements, which are located between the elastomer energized seal and the groove walls to sandwich the elastomer energized seal therebetween. Each of the back-up elements includes an outer member made from a relatively hard, non-resilient material which is sufficiently strong to prevent extrusion of the cap seal and an inner member made from a relatively soft plastic material which does not abrade or chafe the soft elastomer energizer.

Abstract: A high pressure sealing connection for sealing between coaxially aligned members (22, 10) which are connected by metal bolt means having a different coefficient of thermal expansion from the aligned members. The connection comprises a metallic sealing ring (40) having at its largest external diameter a curved arcuate peripheral surface 52 characterized by a center of curvature which is co-diametral with the center of the seal ring but may be of greater or lesser radius than the radius of the ring. At its inner periphery, upper and lower flanges (61, 62) extend inwardly and perpendicularly to the axis of the ring. The coaxially aligned members (22, 10) are provided with recesses defined by opposed internal frusto-conical sealing surfaces (41, 42) at their adjoining ends, each tapering inwardly from the end of the member to an annular shoulder (43, 44) in the bore of the aligned member. The frusto-conical surfaces (41, 42) are of equal taper in the range of 5 degrees to 20 degrees.