An air-cushion, or ground-effect, vehicle is described which includes a central cushion defining assembly of skirts and a peripheral cushion defining assembly of skirts. The skirts of the central assembly are of lobe-like section and the skirts of the peripheral assembly are cylindrical. Any given skirt of the peripheral assembly is in contact with each two, like, adjacent skirts and with two of the skirts of the central assembly.

Apparatus for producing a chorale or vocal effect in an electronic musical instrument comprises means responsive to the playing keys of the instrument for producing an indexing signal and means responsive to the indexing signal for sequentially developing a plurality of control signals. A programmable filter is responsive to each sequentially developed control signal for modifying the harmonic content of a tone signal to simulate a different vowel-like sound for producing a vocal effect consisti...

A galvano-magneto effect device in which a glavano-magneto effect element is fixed on a thin substrate and a thick cover plate made of ferrite is provided on said galvano-magneto effect element.

In an apparatus for producing effect yarn, at least one pair of feed rollers is provided for supplying a yarn component creating the effect, this pair of rollers consisting of a driven feed roller and a pressure roller forced against it. Moreover, the apparatus has at least one supply arrangement for a foundation thread, a hollow spindle carrying a bobbin of binding thread and having a twist limiter, and a pair of draw-off rolls. A deflecting pin extending substantially parallel to the axes of t...

Disclosed herein is an improved field-effect transistor, having its effective base width determined by the impurity diffusion length or by a difference between impurity diffusion lengths for providing a reduced parasitic capacitance between gate and drain, and/or between gate or drain and other electrode. Disclosed also is a construction for effectively leading out an electrode from the base region and or source region, and methods adapted to manufacture the above-mentioned field-effect transist...

Producing effect yarns using the false twist principle by varying the twist density in the heater zone to alter the degree of bulk and thus the texture along the length of the finished yarn.

Field effect transistor having a semiconductor substrate of a first conduction type, a source and a drain of a conduction type opposite the first conduction type, a zone of the opposite conduction type disposed between the source and the drain and surrounded by a region of the first conduction type and doped more heavily than the substrate and a control electrode insulated from the surface of the semiconductor substrate and covering the zone disposed between the source and the drain over the ent...

A method of determining the shrinkage effect to be intentionally produced the manufacturing process in the fabrication of high-pressure cylindrical vessels wherein test samples are cut from the cylindrical body and transducers are mounted upon the inner face thereof. The body is subjected to fluid pressure and a strain (.epsilon..sub.p) is determined on two test samples cut from the body while the strain intensity (.epsilon..sub.pa) at the apparent proportionality limit is determined via the tra...

A circuit for simulating the effects of a temperature change in a digital transmission medium. The circuit generates lengthened or shortened frequency pulses digitally by operating a pulse counter to reset early for a shortened pulse or skip a timing pulse for a lengthened interval pulse. A second counter and associated decoder are utilized to alternately control the operating modes.

The vehicle is connected to a carriage by means of a frame pivoted to the carriage and holding the vehicle at a particular altitude as it rides on an air-cushion developed dynamically under the wing of the vehicle, while the carriage runs and is retained on a monorail.