Abstract: A break-away mounting for vehicle-mounted mirrors includes a mounting member for securing to the side exterior of a vehicle, with a portion projecting outwardly from the vehicle. A mirror support receives a mirror and has a pivot boss where the mirror support can be pivotally mounted to the portion of the mounting member. A follower guide is secured to either the portion or pivot boss and a follower is mounted in the guide. Cam surfaces are provided on the other of the portion and boss, and a resilient spring urges the follower against the cam surface. The cam surface defines firstly a detent or recess for receiving the cam follower when the mirror support is in its normal operating position, and further defines sloping cam surfaces to either side of the recess which are such that when the mirror support is deflected forwardly or rearwardly it automatically returns to its normal position.

Abstract: A flaw detector for optically transmissive surfaces having a first light collector above the surface and a second light collector below the surface. A scanning light beam is directed into the first light collector through a beam entrance aperture and only light scattered from the surface is collected. Light specularly reflected from the surface exits the collector through the beam entrance aperture. Similarly, light passing through the surface enters the second collector, but the axial beam component is dumped through an opening in the second collector, while only diffracted light is collected. Preferably, two-stage light collectors are used with the first stage admitting the beam and generating a scattered or diffracted beam component, with the second stage admitting the scattered or diffracted beam component and integrating the component over a collection surface and sampling the integrated portion at a photoelectric detector. An electrical output signal from the detector may be displayed.

Abstract: An instrument for computing resistivity based upon measurements of thickness and conductance. A conductance transducer is a solenoid in an annular ferrite cup connected to a tank circuit for an eddy current measurement of conductance. Within the center of the annular ferrite cup concentric acoustic wave sending and receiving channels are disposed for making an acoustic pressure wave measurement which is used for a thickness measurement using two gauge heads, spaced on opposite sides of an article to be measured. Each gauge head contains identical conductance and thickness transducers. The thickness measurement is divided by the conductance measurement to derive resistivity.

Abstract: A probe for determining the p or n-type of semiconductor material wherein a conductive wire is positioned for point contact with the semiconductor, forming a diode. The wire is energized by r.f. current passing through a capacitor so that the current is rectified at the diode, charging the capacitor. A voltage comparator is connected to the capacitor for determining the polarity of charge on the capacitor and hence the p or n-type of the semiconductor wafer. The semiconductor is supported on a non-diffusing dielectric over a conductive carrier such that r.f. current passes through the dielectric to the carrier, thereby completing the circuit.

Abstract: A combined lamp and turn signal for a snow plow or the like comprising a housing which supports a sealed beam headlight lamp bulb and a signal and parking lamp bulb. The housing has an elongated opening through one wall thereof and a grommet is positioned in the opening. The grommet has spaced flanges which engage the inner and outer surfaces of the portion of the housing defining the opening and extend continuously about the opening. An outer swivel plate having substantially the same configuration as the outermost flange engaging the outermost flange and an inside plate having substantially the same configuration as the inner flange of the grommet engages the inner flange. The flanges of the grommet and the inside and outside plates have aligned openings and fastening means extend through the openings.

Abstract: A vehicle lamp comprising a housing having a base wall and a peripheral wall surrounding the base wall and having a free edge and a first lens adapted to overlie the free edge of the peripheral wall. The peripheral wall has an opening therein extending toward the lens and a second lens is provided in the opening and has a free edge aligned with the free edge of the peripheral wall. An annular gasket is positioned on the peripheral wall and engages and holds the second lens in position. The first lens and the gasket have cooperating portions to provide a seal between the first lens and the gasket.

Abstract: A lamp comprising socket mounting assembly which includes a retainer engaging the interior of said hollow portion of said housing. The retainer has an opening therein and a shock absorbing mount member extends through the opening. The member is made of resilient material and has spaced annular flanges extending along opposite sides of the retainer. One of the flanges has circumferentially spaced integral protuberances extending axially and engaging one surface of the retainer for holding the opposite surface of the retainer against the opposite flange. The shock mounting member has an axially extending opening therein. A socket retainer has a planar surface engaging the end of the shock mounting member. The socket retainer has portions thereof crimped into engagement with the periphery of the shock mounting member. A socket member has an end with a reduced diameter extending through the opening in the socket retainer and the end is crimped outwardly.

Abstract: Apparatus for measuring distance between a gauge head orifice, and the front planar surface of an object by sensing acoustic pressure near the gauge head orifice. The acoustic pressure is initially generated by an audio oscillator activating a speaker which emits acoustic waves through a first orifice. Acoustic pressure is sensed through a second orifice, proximate to the first, and the pressure is converted to an electrical signal which is processed to yield a distance signal for a display. Two similar distance gauges spaced apart on opposite sides of a planar member at a known distance are used to compute the thickness of the planar member.

Abstract: A marker lamp comprising a housing and a lens. The housing has an opening into which the lens extends. An O-ring is positioned in a circumferentially extending groove in the opening of the housing. The lens has a cylindrical portion that extends into the opening which has a cylindrical surface that is engaged by the O-ring. The cylindrical surface has a length in a direction of the axis thereof greater than the width of the groove in the housing. The lens also has circumferentially spaced axially extending projections on a portion of the lens that extends axially beyond the groove.

Abstract: An assembly comprising a lens, a housing assembly including a bottom wall and a resilient mounting member fixed on the bottom wall. The resilient mounting member has a central portion spaced from said bottom wall and having a centrally located opening therein. A socket base is provided which has a centrally located projection that extends through the opening in the resilient mounting member. A grounding strap is fastened to the projection of the socket base and extends beneath the resilient mounting member.

Abstract: A surface profile measuring instrument, which has a stylus supported on a counterbalanced scanner arm, in turn supported in a gimbal mounting having two axes, one of which is adjustable by a servo. A connected electronics package provides axis compensation for levelling through the servo, as well as zero adjustment of a display device and discrimination against small, unwanted slops. Stylus motion is translated into an analog signal by a linear position differential transformer. To achieve slope discrimination, the analog signal is differentiated and compared in a comparator to a reference for rejection of signals corresponding to small slopes. The signal is then integrated and displayed, with reference to a selected zero of a display device.

Abstract: A lamp comprising socket mounting assembly which includes a retainer engaging the interior of said hollow portion of said housing. The retainer has an opening therein and a shock absorbing mount member extends through the opening. The member is made of resilient material and has spaced annular flanges extending along opposite sides of the retainer. One of the flanges has circumferentially spaced integral protuberances extending axially and engaging one surface of the retainer for holding the opposite surface of the retainer against the opposite flange. The shock mounting member has an axially extending opening therein. A socket retainer has a planar surface engaging the end of the shock mounting member. The socket retainer has portions thereof crimped into engagement with the periphery of the shock mounting member. A socket member has an end with a reduced diameter extending through the opening in the socket retainer and the end is crimped outwardly.