Abstract: A sound system comprises four channels, each having a low level input for coupling to a source of program material, multiple, independently selectable gyrators providing equalization poles, and an input stage for independently and selectively coupling one or more of the gyrators to the low level input. Each channel further includes an amplifier, a buffer for coupling the selected one or more of the multiple gyrators to the amplifier, and a transducer coupled to the amplifier. A filter is coupled between the buffer and the amplifier. The filter has a variable lower corner frequency and a control input terminal. The sound system further comprises a low-pass filter circuit coupled between the amplifier and the control input terminal of the variable corner frequency filter for generating a feedback signal.

Abstract: An arrangement for processing video signals, the video signals having the form of digitally encoded samples and being arranged to produce a television picture by line and field sequential scanning includes a frame store, a write address generator and a read address generator. Input video samples are fed from an input to an interpolator for writing into the store. When a television picture is to be rotated and the rotation is effected by the sequence of write addresses to the store a situation can arise where there is no information available for writing into certain store locations. This results in holes appearing in the output signal where no picture related information is present. A hole detector is provided at the store output and controls an interpolator which inserts information derived from adjacent picture samples into the hole.

Abstract: An improvement to a wave ski comprising an adjustable seat which slides longitudinally along a track located on the upper surface of the wave ski and a fin associated with the seat, whereby the user can simultaneously adjust the longitudinal position of the seat by the use of footrests and the fin on the wave ski. In another embodiment of the invention, the adjustable seat which moves longitudinally along a track located on the upper surface of the wave ski and the fin associated with the seat includes a slot extending longitudinally along or adjacent to the center line of the wave ski and is adapted to receive the fin or portion of the seat, whereby the user can again simultaneously adjust the longitudinal position of the seat and fin on the wave ski.

Abstract: A serial switched interconnection network comprises several stages of switching units each having a plurality of source ports and destination ports interconnected so that any source port of the first stage can be connected to any destination port of the final stage by operation of switching units in successive stages. Connections are by shared data and control paths each of which paths may comprise a single line or multiple lines and each switching unit when switched to along a path sends a request back up that path for sufficient data signals to operate the switching unit initiating the request. The setting up of a path through the network is thus stage-by-stage asynchronously.

Abstract: A video signal processing arrangement for television signals encoded in digital form comprising means for compressing and/or expanding the size of the television picture represented by the video signal and means for rotating the television picture represented by the video signal is disclosed. The rotating means is separate from the compressing and/or expanding means and is switchable between a position prior to the compressing and/or expanding means in the video signal processing chain and a position subsequent to the compressing and/or expanding means. An arrangement having two separate video signal paths which are later combined to produce a composite picture is also described in which the rotating means can also be positioned after the combining means as well as before or after the compressing and/or expanding means in either path.

Abstract: A valve obstructs flow of fuel vapor to an engine induction passage both when the engine is not operating and when the engine is operating with a closed throttle, and varies flow of fuel vapor to the induction passage when the engine is operating with an open throttle.

Abstract: A fuel connector has a projection with a threaded external surface that mates with the threaded internal surface of a fuel injection valve fitting, and also has a sleeve surrounding the fitting. An O-ring engages the internal surface of the sleeve and the external surface of the fitting and allows the valve to be rotated relative to the connector without breaking the sealing engagement between the valve and the connector.

Abstract: A fuel vapor storage canister has inner and outer covers that define a labyrinth through which the purge air flow is directed. The labyrinth inhibits ingestion of water and dirt as purge air is drawn into the canister.

Abstract: A method for improving a production characteristic of flame-retardant polyurethanes. The characteristic may be selected from the group consisting of(1) processability;(2) scorch;(3) odor; and(4) flame-retardant efficiency.The method comprises incorporation into a polyurethane an amount effective to reduce combustibility of a haloether phosphorate flame-retardant under conditions sufficient to improve said characteristic. Also, the flame-retardant polyurethane composition such as prepared by said method. Preferably, the polyurethane is a foam, especially a flexible foam and most especially flexible slabstock foam.

Abstract: Included are the title phosphorate compounds, and a process to prepare them comprising contacting a carbylphosphorate acid halide with a carbyloxide. For example, (3-chloro-2,2-bis(bromomethyl)propyl)bis(ethyl)phosphorate can be prepared with 3,3-bis(bromomethyl)oxetane and bis(ethyl)chloridophosphorate. The compounds are useful flame retardants for polyurethanes, especially flexible foams because, for example, substantially non-scorching and non-odoriferous flame-retardant flexible foams can be readily prepared with the compounds. Also included is a method for inducing scorch in polyurethanes, which can be used to generally determine polyurethane formulations which are prone to not scorch in commercial production.

Abstract: An arrangement for rotating television pictures comprises a frame store into which a rotated input picture is written under the control of a write address generator which is in turn controlled by a rotation control and timing generator. A video input signal is applied at input and fed to a splitting circuit which produces streams of even and odd numbered samples, both at the sampling rate. These streams of samples are fed to an interpolator where they are used to generate samples to be written into the store. The store is split into four areas which are arranged to hold respectively field 1 odd samples, field 1 even samples, field 2 odd samples, and field 2 even samples.

Abstract: A mobile sea barge having a unitary lower hull which has sufficient buoyancy to float the entire barge, an upper hull spaced from the lower hull by a single, centrally-positioned, vertical member, and a movable stabilizing hull arranged about the central support member for controlled movement between the upper and lower hulls is provided. Controlled movement of the stabilizing hull permits the operational modes of submerging and emerging of the lower hull into or from a bottom-founded gravity-forced mode from which drilling operations can be carried out. In the bottom-founded mode on the sea floor the barge functions as a gravity platform. Movement of the stabilizing hull is provided by a plurality of jacking legs and jacking units which constitute the control devices. The barge can be quickly switched between the surface-floating and the gravity-forced, bottom-founded modes. Controlled vertical descent to the sea floor is provided by the static stability of the stabilizing hull.

Abstract: A novel containment device for securing electrical connectors comprising a box fashioned with a slot in one face, a rotatable shelf inside said box and a door or moveable panel on one end of said box. The box is employed by inserting the plug end of an electrical appliance cord through said door and into said box, said plug being placed under said shelf with the cord passing over said shelf and out of the box through said slot. The plug is unable to exit the box due to insufficient clearance between the interior edge of the shelf and the back of the box.

Abstract: A medicien cabinet has a housing and a door. The door is provided with an electrically operated lock which is operable by using the push keys. The opening code for the lock is initially set by inserting four keys into four holes in a four by ten array of holes provided in the casing on the inside of the door. The circuits for the code pre-setting and code inputting circuits are provided on a membrane.The cabinet is provided with a light emitting diode (LED) and a buzzer which can be operated by timing means at set intervals. The LED and the buzzer also operate while the door is open.Additional facilities may also be provided on the cabinet.

Abstract: A fuel pressure regulator has a multi-faceted extruded base that allows the outlet from the pressure regulator to be oriented in any of six different directions. A fuel body has a projecting snout and a fuel passage extending through the snout, and the inlet to the pressure regulator plugs directly onto the snout; the fuel passage thereby supplies fuel to the pressure regulator, and the pressure regulator thereby maintains the desired fuel pressure in the passage.

Abstract: A pressure regulator base has a rim staked over the flange of a pressure regulator cover, and a compression ring concentrates the clamping effort of the cover on a circular area of the pressure regulator diaphragm sealing region.

Abstract: A mobile sea barge having a unitary lower hull which has sufficient buoyancy to float the entire barge, an upper hull spaced from the lower hull by a single, centrally-positioned, vertical member, and a movable stabilizing hull arranged about the central support member for controlled movement between the upper and lower hulls is provided. Controlled movement of the stabilizing hull permits the operational modes of submerging and emerging of the lower hull into or from a bottom-founded gravity-forced mode from which drilling operations can be carried out. In the bottom-founded mode on the sea floor the barge functions as a gravity platform. Movement of the stabilizing hull is provided by a plurality of jacking legs and jacking units which constitute the control devices. The barge can be quickly switched between the surface-floating and the gravity-forced, bottom-founded modes. Controlled vertical descent to the sea floor is provided by the static stability of the stabilizing hull.

Abstract: A fuel rail assembly has a pair of fuel rail bodies each of which has a bore extending parallel to the fuel supply passage. Each bore has a plug dividing the bore into inlet and discharge regions. The inlet regions are interconnected by an inlet crossover tube, and each inlet region opens to its associated supply passage through a window and a restriction at one end of the associated fuel rail body to balance fuel flow to the supply passages. At the other end of each fuel rail body, a cross bore extends through the discharge region to the supply passage, and discharge tubes received in the cross bores discharge fuel from the supply passages to a pressure regulator.

Abstract: A fuel rail assembly supports injectors for delivering fuel to an engine and includes a pressure regulator to establish the pressure of the fuel supplied to the injectors. The fuel rail body and the pressure regulator base are fabricated from sheet metal, and the pressure regulator base is secured directly to the fuel rail body.

Abstract: A compact central fuel rail supports injectors which deliver fuel to both banks of a V-engine. THe fuel rail is extruded with both fuel supply and fuel return passages, a single circular plug provides a closure for the associated ends of the passages, and a plug in the return passage limits interconnection of the passages.