Abstract: The present invention relates to a piezo-electric stretching detector which is used for measuring the positive and negative stretching on the surfaces of rigid structures using electric signals, wherein said detector can be attached by a force connection onto said surfaces in a compressible or non-removable relation. This stretching detector has a high sensitivity in all stretching directions and is made of a piezo-ceramic material which is applied in a thin layer on at least one surface of a flexible metal sheet or which is fixedly attached to said metal sheet in the shape of a moulded body. At least one of said stretching detectors can be arranged on the free abutting end of at least one resilient pressure body which is imbedded in the reception housing of a stretching sensor. The stretching sensor further comprises members for pressing the reception housing onto the surface to be measured.

Abstract: A vehicle sensor assembly includes a vehicle sensor of a relatively low density material assembly for a vehicle fluid directing component such as an air intake manifold having a sensor receipt member formed of a relatively high density material. When the sensor is inserted into the sensor receipt member, the relatively softer sensor engagement surface is displaced from its free state by the relatively harder sensor receipt member engagement surface. The relatively softer sensor engagement surface is resilient and will always attempt to return to its free state position to relieve the high stress area. In attempting to return to its free state, the sensor engagement surface will “creep” toward a low stress area. The sensor body responds by “creeping” toward the vehicle fluid directing component.

Abstract: A nipped roller impression sensor system comprising a first roller having an axis of rotation and a surface and a second roller having an axis of rotation that is substantially parallel to the axis of rotation of the first roller, wherein the second roller is disposed so that a surface of the second roller exerts pressure on the surface of the first roller at a nip having a width. The nipped roller impression sensor system also comprises at least one pressure sensor device configured to be disposed at the nip between the first and second rollers. The pressure sensor device comprises a resistive electrode maintained in a non-conductive arrangement with a shunt electrode by at least one spacer element, such that a width of the nip corresponds to a change in resistance across the resistive electrode when the second roller exerts pressure on the first roller.

Abstract: A container for storing sport balls incorporates a device for testing the playing condition of the balls. A cylindrical container has a removable end cap that may be attached to the closed end of the container. A ball placed within the end cap is subjected to predetermined compression when the end cap is secured onto the container. A pressure indicator in the end cap provides a visual indication of the internal pressure in the ball, and hence, one important measure of the playing condition of the ball.

Abstract: This invention relates to a gyratory shear press of which the compression means are disposed in the lower part of the chassis and of which the gyration means are provided in the upper part of the chassis which is in the form of a casing. The mould is introduced in the casing via an opening provided in the upper wall of the casing and adapted to be closed by a lid. The gyration means comprise two concentric sleeves separated from the casing and the mould by bearings. The inner sleeve is mounted to oscillate in the outer sleeve and is inclined by means of a vernier.

Abstract: A ceramic socket or ceramic socket insert for a hip joint prosthesis is tested prior to implantation in a human body by subjecting the portions of the interior of the socket or socket insert to a load that generates stresses that are greater than the physiological load. This may be accomplished either by pressing a hemispherically-shaped deformable material such as polymer or plastic into the interior of the socket or socket insert or by exposing the interior of the socket or socket insert to a fluid under pressure. The interior of the socket or socket insert may be sealed off with a test punch that has a supply line for the fluid. To reduce the amount of fluid that is required, the test punch may have a bulge that projects into the interior of the socket or socket insert and leaves only a gap for the fluid.

Abstract: An apparatus for determining the mechanical deformation behavior of extrudable measuring samples and which has two drivable take-up rollers (2) disposed pairwise on a resiliently deflectable mounting frame, to which an extruded measuring sample billet is supplied. In order to prevent the adhesion of the measuring samples on the take-up rollers (2), a drivable guidance device for the measuring sample is mounted on the resilient frame downstream of the takeup rollers (2). The drivable guidance device comprises two drivable guidance cylinders (5).

Abstract: A portable combined gyratory compactor and extruder for compacting a specimen of material in a mold held in a mold gyration assembly and gyrated about a longitudinal axis as a compaction ram is driven into the mold, and for extruding compacted material from the mold without removing the mold from the mold gyration assembly. The mold gyration assembly is suspended from a spherical bearing pivot positioned lateral to the longitudinal axes of the mold and the compaction ram. The compaction ram is drivingly insertable up into the mold through the bottom of the mold to compact material in the mold as the mold is gyrated by the mold gyration assembly. When the gyratory compaction is completed, a top cap assembly over the top of the mold is removed to allow the compaction ram to be driven farther upward into the mold to extrude compacted material through the open top of the mold while the mold is held in the mold gyration assembly.

Abstract: The invention relates to a method and device for measuring the properties of earth materials subjected to a load, the device comprising a cylinder (10) for a material sample enclosed by a cover and bottom plate (6a, 7a), compressing the sample, and making the central axes of the cover and bottom plate deviate parallel to each other by an angle in relation to the central axis of the cylinder and in the same plane with the central axis of the cylinder. The central axes of the cover and bottom plate revolve about the central axis of the cylinder (10) with an angular deviation so as to deform the sample. In order to make the measuring more effective the material is measured by means of a device which is provided for measuring the force resisting the deformation of the sample in the direction of the radius of the sample, and for measuring the force resisting the deformation of the sample in the direction of rotation of the angular deviation.

Abstract: A gyratory compacting and mold extruding apparatus for compacting a specimen of material within a mold as the mold is gyrated includes a frame for supporting a mold, a mold gyrating carriage, a compaction ram and ram driving assembly, and a mold specimen extruder. The mold gyrating carriage receives a cylindrical mold having a cavity for holding material and an external peripheral flange about which the mold carriage is guided and driven to gyrate the mold while the ram is drivingly inserted through the open top of the mold. The ram driving assembly is supported by a flexible portion of the frame which flexes in reaction to force transferred by the ram. Strain gauges on the flexible portion of the frame provide feedback control data on ram force to an integrated computer control system which selectively controls the ram driving assembly to control the force transferred by the ram at least partially according to data generated by the strain gauges.

Abstract: A package is conveyed to a test station where a friction roller is pressed against the package and urged to rotate relative to the package. The amount of rotation urgeable for a preset torque is indicative of package seal quality. This rotation is automatically detected and compared with a preset value to determine the quality of the package seal.

Abstract: A machine for squeeze testing glass containers comprising a test station, including a fixed pad having a curved container engaging surface and an opposed wheel selectively spaced from the surface, rotating at a predetermined surface speed and in the direction required to roll a container delivered to the station along the curved surface until it is released therefrom. A conveyor delivers containers to the test station and carrys released containers away from the test station. A roller is rotatable about an axis parallel to the axis of rotation of the wheel and defines with the wheel a path through which released containers will pass. The roller is biased forward to a selected location whereat the distance between the roller and the wheel is less than the outer diameter of a released container, and the roller is rotated at a surface speed selected to reduce the rotation of a released container, which passes between the wheel and the roller.

Abstract: Disclosed is a method and apparatus for directly measuring the radially applied, compressive nip load between two press rolls. Matched, low angle ramp plates are connected tensilely by a load strip which supports a strain gauge. The assembly, having less than one inch of nip section thickness, is placed in the subject roll nip and loaded normally. Due to the ramp angle base, the two plates are displaced in opposite directions normal to the radial load. The connective load strip opposes the opposite displacement thereby stressing the strain gauge.

Abstract: This invention provides non-destructive testing of elongate compressible materials, and particularly to determine the elastodynamic properties of a material, and/or to detect defects such as non-uniformities in resilience or hardness, subsurface as well as surface defects such as inclusions, voids, tears, and the like. The material to be tested is passed between two rollers of substantially contant roller spacing. Measurement of the load provides an indication of elastodynamic properties of the material. Variations in the measured load can be utilized to detect defects in the material. The invention has been found particularly suitable for the testing of material for seals, such as O-rings.

Abstract: A reusable centrifuge fixture is disclosed for holding small parts, such as integrated circuit chips, during high speed rotation. The fixture is made of a moldable material having a depression formed therein conforming to the contours of the part. The fixture is made by pouring the moldable material into an open cavity of a form and the part to be centrifuged, or a replica thereof, is impressed into the surface of the moldable material prior to curing. A permanent magnet is used in conjunction with the fixture to hold the part within the centrifuge machine during set-up of the machine.

Abstract: An apparatus for testing the compressability of golf balls and sorting them in accordance with predetermined compression ratings. The apparatus includes a golf ball movement path having a rotary anvil on one side thereof for driving the golf balls one at a time through a restricted gap between the anvil and a deflectably biased lever. The gap is sized to be smaller than the diameter of the golf balls so that they will deflect the lever an amount determined by their individual compressability. The amount of lever deflection is sensed and transmitted to an electric circuit which operates a golf ball sorting device that directs the golf balls to different outlets in accordance with their sensed compressability.

Abstract: A method of testing the aging properties of a rubber-based propellant by exposing a stressed sample of the rubber-based propellant to a controlled flow of air containing a carefully controlled concentration of ozone, and periodically measuring the physical properties.