A headphone having a reel for the internal storage of the cord.

A rear loader for refuse collection vehicles. The rear loader includes a housing with an opening through which refuse is deposited in a hopper. A movable packer plate in the housing moves in opposition to the bottom of the hopper to partially compress the material and subsequently to convey the material through a discharge opening into the body of the vehicle. The packer plate in the housing also cooperates with an ejector plate in the body to further compress the refuse contained within the bod…

Vehicle having a passenger compartment constituted by a rigid unit, a relatively more deformable front part and rear part. There is provided in front of each front wheel and/or at the rear of each rear wheel a shoe which is located substantially mid-way of the height of the wheel and substantially in a longitudinal plane containing the wheel. The shoe is designed to deform plastically under the effect of a predetermined violent shock to absorb a part of the energy involved in the shock.

A display device that may function as a tombstone or grave marker. The device includes operating mechanism which is adapted to be located under ground for raising and lowering a marker assembly which may be disposed substantially at ground level to function as a grave marker or raised to an elevated position and thereby function as a tombstone. The operating mechanism for effecting the raising and lowering movement includes a wheel mounted for rotation and connected by flexible devices to the ma…

A voltage regulator and method are utilized in an automatic throttle control for an internal combustion engine driven inductor alternator. An SCR in series with the load is biased to conduct on successive positive half-cycles of a rectified a.c. input voltage. The SCR conductive bias is opposed responsively to the load voltage so that the average load voltage is a function of the number of complete pulses of the source in which the SCR conducts during a given time period. A hold-off circuit is p…

A television inspection system for pipelines wherein the gain of the television camera and/or the camera target voltage is varied in a predetermined manner in synchronism with the scan of the television camera to compensate for nonlinear illumination of the pipeline interior.

A d.c. gas discharge lamp in which the space at the electrodes communicates through one or more apertures sufficiently small in cross-section to prevent arcing but sufficiently large to permit diffusion of metallic vapor. A single channel or a diaphragm may be utilized in a hot or cold cathode tube.

A filling assembly for vacuum filling impervious open mouth paper bags with finely divided particulate material. A filling head is provided with at least two independent vertically extending chambers through which a selective vacuum or relief may be applied. Particulate material is fed through a central opening in the filling head whereby interstitial air is withdrawn from between the particles of particulate material as the material falls downwardly into an impervious open mouth bag. Clamping j…

Wiper means adapted automatically to keep the front glass of a road vehicle headlamp clean as the vehicle is driven along, such means including a member which in use is disposed and is rotatable in a plane substantially parallel to the front glass of the headlamp, which member is adapted to drive a wiper element and has thereon blades arranged so that air flowing radially outwards over them from the centre of the member will cause rotation of the latter.

A method and apparatus for damping vibrations of a rotary cutting blade. In one disclosed embodiment, the planar surface of a rotary cutting blade is frictionally contacted by a damping means comprising a plurality of coaxial, independently rotatable disks each presenting a relatively narrow peripheral surface in contact with the planar surface and disposed with the axis of rotation parallel to the planar surface and intersecting the axis of rotation of the cutting blade. In another disclosed em…