Abstract: A security gate for protecting an opening in a building such as a door, window or the like comprises an upper guide-way which extends along the length of the opening an elongated vertical rods which extend across the opening with horizontal links pivotally connecting the rods. Roller are connected to every four uppermost link. The rollers engage in the upper guide-way so that the gate can be moved easily.

Abstract: A hydrodynamic thrust, journal or combined radial and thrust bearing and methods of manufacturing the same. The bearing includes a bearing pad structure that may change shape and move in any direction (six degrees of freedom) to optimize formation of a converging wedge for hydrodynamic operation, equalization of load on the bearing pads in thrust bearings and to adjust for any shaft misalignment. The bearing pad may be formed so as to contact the shaft in the installed state and to deflect under fluid film pressure. The shape of the pads may be altered to achieve desired deformations under load. The pads are supported by a support structure which can include one or more beam-like members. The support structure preferably includes a primary support portion, a secondary support portion and a tertiary support portion. The beams allow deflection of the pad by either deflecting or twisting in a torsional mode. The bearing pad support structure may include portions which are fluid dampened.

Abstract: An optical scanning system uses a multiple synchronizing sensing device to device a row of modulated signals into multiple blocks so that the effect of velocity jitter of a polygon scanning mirror is evenly distributed on each zone. In this manner, the influence of printing quality by the velocity jitter is reduced. For instance, the multiple synchronizing sensing device is provided with twenty sensing elements, the influence of the velocity jitter is lessened to be one twenth time as much as its original value. Therefore, the cost is greatly lowered by applying the system of the present invention to a high resolution optical scanning device which utilizes a polygon scanning mirror of less precision.

Abstract: A partition of the type commonly used in bathroom facilities. The partition is constructed of one or more panels having a construction which permits the use of a high percentage of recycled materials. The panels include a plurality of slats each having a elongated narrow construction which allows the slats to be formed by the process of pultrusion. This permits use of a high percentage of recycled materials. The slats and other components are designed such that the slats are maintained in alignment and held securely in place in the assembled state.

Abstract: An automatic variator for use in an internal combustion engine and other engines which use valve-type distribution systems, to operate a twin set of double-effect distribution sequential valve shafts for the purpose of regulating the valve overlap or timing and the valve opening section or to operate a double overhead camshaft with poppet valves for the purpose of regulating valve overlap or timing while the engine is running. A motor reducer advances a spindle against the valve shaft with a grooved screw at one end of the same, causing the shaft to turn and move, thereby varying the valve overlap or the valve section and valve overlap.

Abstract: A puncturing device which includes a sleeve (1), a push-button (2) mounted on one end of the sleeve (10), a piston (5) which has a puncturing tip (7) and is mounted in the sleeve (1), and a power spring (9) placed inside the sleeve (1) between the face (8) of the push-button (2) and the piston (5). The piston (5) has on its outside perimeter wings (11) which rest against the internal projection (12) of the sleeve (1). A return spring (10) is located inside the sleeve (1) between its bottom (3) with the hole (4) for the puncturing tip (7) and the piston (5).

Abstract: A control valve for use in a swimming pool containing an automatic pool cleaner is described. The valve comprises a main water passage having an inlet port in a cranked inlet portion and an outlet port. A valve chamber extends from the main passage. It has a relief valve and an outlet through its side wall. A by-pass passage connects the outlet to the main water passage. A valve member sensitive to the pressure in the by-pass passage is located within the chamber and is biassed by a spring into a closed position to close off the relief port. When the pressure in the by pass passage falls, the valve member is drawn into the open position in which it controls the opening of both the relief valve and the outlet in dependence upon its position.

Abstract: A T-shape vortex shedder comprises a bluff body having a width W between upper and lower ends thereof and an extended plate having a length L in the fluid flow direction which is perpendicular to the bluff body. The bluff body and the extended plate form a T-shape vortex shedder with a T-shape cross section. When this T-shape vortex shedder is placed in a fluid motion within a circular pipe, the bluff body is located upstream of the fluid flow, and the extended plate is located downstream of the fluid flow, such that vortex shedding is produced at the upper and lower ends of the bluff body. The T-shape vortex shedder is characterized in that the L/W ratio is approximately 1.56.about.2.0, and the fluid flow produces steady vortex shedding when the Reynolds number of the fluid flow is approximately 2.4.times.10.sup.3 .about.3.2.times.10.sup.4.

Abstract: A method for the treatment of hypertension, arrhythmia, thrombosis or/and atherosclerosis with an effective amount of dicentrine or other alkaloids extracted from Lindera oldhammii (megaphylla) Hemsl.

Abstract: The present invention provides a tilting control assembly for a chair. The chair comprises a support device, a seat supported above the support device, and a seat back arranged behind the seat to tilt rearwardly. The tilting control assembly comprises a tilting control spring device for elastically supporting the seat back against rearward tilting thereof via a load applying member, a displacing mechanism responsive to a downward load applied to the seat for causing the load applying member to move relative to the spring device, and a lock device for preventing the load applying member from moving reversely relative to the spring device when the seat back is rearwardly tilted.

Abstract: The present invention relates to an actuator for turning a shaft (11) to a limited degree, e.g. the shaft of a butterfly valve or the like, the actuator comprising a housing (2) having a cylindrical chamber (6), inlets and outlets (7, 8) for a pressure fluid to the cylindrical chamber, a piston (9) in the cylindrical chamber, which can be displaced in the cylindrical chamber by means of a pressure fluid and is provided with a rack (10) with a toothed segment (27) cooperating with a gear ring segment (22), fixedly mounted on said shaft (11), which extends right through the cylindrical chamber (6) and through the wall of the housing (2).

Abstract: In a window for ovens, in particular household baking ovens, with a window structure that consists of several panes (10, 28, 32), at least one of the panes (28) is angled in comparison to the other panes (10, 32). Because of this a lower outer surface temperature results on the outer pane (32) of the multiple pane arrangement turned away from the oven inner chamber (12) with elevated temperature. The frame (16, 34) of the multiple pane arrangement can also have openings (36) on the top and bottom in the area between the outside pane (32) and the center pane (28). In combination with this measure, which permits convection of the outside air through the outer pane intermediate space (arrows 38), an additional reduction of the temperature of the outer pane (32) can be achieved. This air convection can be increased by the fact that the angled center pane (28) converges toward the outer pane (32) at the top.

Abstract: The optically-based frequency synthesizer for generating an electric output signal at a preselected frequency having a given period that can be changed over a wide band of frequencies for communication purposes, comprises a modulator having an input for receiving a command signal, and an output for generating a current driving signal having a DC component, and a modulating component formed of an AC signal having a predetermined time period which is an integer multiple of the period of the preselected frequency, and an amplitude responsive to the command signal, a laser having an input for receiving the current driving signal, the coherent light signal having a given coherence time; optical isolators for receiving the light signal emitted by said laser; a splitter having an input optically connected to the isolators; a first optical path having an end optically connected to the splitter; and a second optical path having an end optically connected to the splitter, and a delay means along its length, the time de

Abstract: A device for fine adjustment of sashes in a double-hung sash assembly of the type comprising four movable sashes linked two by two by a set of two cables located on each side of the window frame and supported by four pulleys. At least two pulleys, and preferably four, are operatively attached to a support slidably mounted in a vertical rail provided in a housing. Each support is moved by means of a screw for adjusting relative positions of sashes, each screw comprising an upper end abutting on or operatively attached to one of the supports, an intermediary portion meshed to an element integral with the housing and a lower end downwardly projecting from the housing and preferably operable with a screwdriver. It allows fine adjustment of the relative position of a pair of sashes linked together to thus allow them to close simultaneously.

Abstract: A tile and mounting mat assembly comprises at least one tile and a mounting mat which is able to receive four tiles. The tile has at least one hole on the back thereof. The mounting mat includes four side walls and a plurality of primary ribs. Two neighboring walls of the four side walls have a plurality of pairs of snap feet and the other two neighboring walls of the four side walls have a plurality of connecting hooks. The primary ribs are crossed within the side walls so as to define at least a first intersection point and partition the mounting mat into at least four frames. Each of the frames has a plurality of secondary ribs. The plurality of secondary ribs are crossed so as to define a plurality of second intersection points, wherein a plurality of positioning posts are respectively formed at each of the second intersection points so as to fit into the holes of a tile when the tile and the mounting mat are assembled, whereby at least four tiles are mounted on the mounting mat.

Abstract: A mechanism controls the motion of the weft insertion member in shuttleless looms. This mechanism comprises a double-threaded variable pitch cylindrical cam and a slider having two pairs of frustoconical rollers. Each pair of frustoconical rollers is mounted on a thread of the variable pitch cylindrical cam. In operation, the cylindrical cam is able to rotate in a reciprocating manner by moving the slider in a rectilinear reciprocating manner. The mechanism is characterized in that the semi-conical angle of each frustoconical roller is formed such that the profile of the two threads of the variable pitch cam screw is easy to design and manufacture.

Abstract: An electrostatic precipitator (ESP) intermittent energization controller is included with a CPU that adaptively controls the DC power used to energize the ESP. An opacimeter is mounted to the ESP for detecting the opacity of dust particles flowing through the same. The CPU searches through a table consisting of a predetermined number of charge-pause parameter sets until one charge-pause parameter set is found to cause the difference between the detected opacity level and the preset opacity level to be within a predetermined tolerable range.