baber/WOPTO huggingface dataset:
Patent GB-2233738-A (GB)
Title: Valve assemblies
Inventor: GUPTA PANKAJ
IPC: F17C7/00
Filed: 1989-09-14
Abstract: A valve assembly comprises an inlet 3 and an outlet 4 for fluid, a main pressure responsive valve 9 for controlling communication between the inlet and outlet and which is arranged to be maintained open for so long as the pressure of fluid in the inlet is above a predetermined level and to close and remain closed when the pressure is below the predetermined level, and an auxiliary valve 19 which is operable to open communication between the inlet and the outlet when the inlet pressure is below the predetermined level and the main valve is closed 9. The valve assembly may comprise a generally cylindrical body 2 having a transverse wall 12 between the inlet and the outlet and provided with two openings 8, 10, one controlled by the main valve member 9 and the other controlled by the valve member 19 which is manually rotatable about the axis of the body to open and close the opening. The valve assembly is intended for use between a fluid utilising means and a supply of fluid of finite capacity, e.g. a cylinder of liquefied gas or a tank of liquid, which is such that the pressure of the fluid therefrom reduces as the supply is depleted. The main valve 9 is intended to cut off the flow of fluid to the utilising means before the supply is exhausted to warn the user that the supply is nearly exhausted. The flow of fluid can be reinstated, while a replacement supply is being organised, by manual operation of the auxiliary valve 19. <IMAGE>
Patent GB-2236035-A (GB)
Title: Asynchronous time division multiplexed switching system
Inventor: TURNER ALEC JOHN
IPC: H04L49/111
Filed: 1989-09-15
Abstract: This invention relates to an ATDM switching system comprising a serial to parallel converter (100) arranged to receive incoming packets of data (which include their own routing information) from several input ports (107) in serial format and deliver them, in parallel format, to a Random Access Memory (RAM) (101, 102) in such a way that the packets form queues within the memory, one for each output port. Packets are then transferred in parallel format, one from each queue in turn, to a parallel to serial converter (105) which delivers them to their respective output ports (109) in serial format. The arrangement is such that when the memory becomes full the system can accommodate incoming packets by overwriting data in the longest queue, a technique that can significantly reduce the total number of packets lost during long term operation.
Patent GB-2226629-A (GB)
Title: Mirror de-fogging apparatus
Inventor: SMITH BRIAN
IPC: A47G1/02
Filed: 1989-12-07
Abstract: A mirror is demisted by passing heated air over its surface. The air, the flow of which is depicted by arrows 3, is preferably heated by a heating element 6 and/or light-emitting element 9 more preferably a high-heat light-emitting element. Filters 5 can be further provided to remove entrained dust or the like. A reflective shroud (not shown) is also desirably located round the light - emitting element 9 to reflect the radiation back therefrom. <IMAGE>
Patent GB-2228555-A (GB)
Title: Paint delivery device
Inventor: SINDONI GIUSEPPE
IPC: G01F11/02
Filed: 1990-01-26
Abstract: Paint flows from a storage container (3), into an inlet duct (2), through a chamber (5) and out of an outlet duct (6). A pneumatic piston (9) moves a rod (8) so that a pair of tips (10, 12) can regulate the flow of paint through the chamber (5). A scraper blade (15) moves with the rod (8) to close off the outlet of the outlet duct (8) when the tips (10, 12) have been moved to stop paint flow. In this way, the paint remaining in the outlet duct (6) is prevented from drying up. The components that come into contact with the paint are housed in a removable head (4) to permit easy cleaning. <IMAGE>
Patent GB-2231999-A (GB)
Title: Apparatus for threatening nuisance animals
Inventor: HAYAKAWA HIDEO
IPC: A01M29/16
Filed: 1990-02-21
Abstract: An apparatus for threatening nuisance animals such as rats comprises a random signal generator (RND) for generating a random signal whose frequency and voltage vary with time in random fashion and a spike generator (SPK) for generating spike signals. The random signal generator (RND) and the spike generator (SPK) are connected to produce a random control signal (RS) which is composed of a superposition of the random signal and the spike signals. By applying the control signal (RS) to a voltage-controlled oscillator an oscillation signal is generated whose frequency pattern corresponds to the random control signal. <IMAGE>
Patent GB-2229095-A (GB)
Title: Controlled release nifedipine preparations
Inventor: ERDOS SANDOR
IPC: A61K31/44
Filed: 1990-03-14
Abstract: Differential release solid pharmaceutical compositions comprising Nifedipine are prepared by admixing a solution or solutions of nifedipine, one or more hydrophilising agents and one or more retarding agents in an organic solvent, applying the solutions thus obtained onto an inert carrier, drying and sieving the product and then admixing it with a tabletting agent and compressing the resulting mixture into tablets or filling the mixture into capsules. 
<??>The hydrophilising agents (eg. polyethylene glycal, hydroxypropyl cellulose, polyvinyl pyrrolidone, or a surfactant) serve to increase the rate of absorption of active agent, while the retarding agents (e.g. ethylcellulose, polyvinyl butyral or polymethacrylates) slow down absorption.
Patent GB-2243782-A (GB)
Title: Eyebath
Inventor: SINSBURY LEONARD GEORGE
IPC: A61H35/02
Filed: 1990-05-10
Abstract: The eyebath comprises a well 2 for cleansing liquid operatively connected with a reservoir 3 which includes means for transferring said liquid into the well, preferably by virtue of the reservoir being resilient so that squeezing thereof causes the liquid transfer, while relaxation of the squeezing pressure causes the liquid to be returned to the reservoir thereby to irrigate the eye. Liquid passes into the well through inclined channels 15 which direct a liquid stream generally tangentially to the well. An inturned annulus may be provided in the well to increase the vortexing of the solution and retain any particles washed from the eye. A magnetic element may be provided in the floor of the well to trap ferrous particles suspended in the eyewash liquid and the well floor may also have an incised groove for the trapping and retaining of particles. <IMAGE>
Patent GB-2250881-A (GB)
Title: Radiation detector optics unit
Inventor: SEDGBEER MELVYN DOUGLAS
IPC: G01S3/781
Filed: 1990-10-05
Abstract: An optics unit for use in a radiation detector and direction finder comprises lens(es) 20 which form defocussed spot image(s) of distant point source(s) of radiation on a radiation sensitive array of diodes 1. In order to reduce distortions inherent in the use of a lens with a short focal length (necessary to give a wide field of view) the center of the lens is obscured 22 having a clear optical aperture 21 of annular shape. so enabling the position of such emission(s) within the viewing angle to be deduced with much higher accuracy than would otherwise be possible. <IMAGE>
Patent GB-2253841-A (GB)
Title: Biocide for aqueous based systems
Inventor: RIMMER KAREN
IPC: A01N43/26
Filed: 1991-01-04
Abstract: A method for treating an aqueous system is described which comprises incorporating therein a dithiolan having the general formula:   <IMAGE> wherein each X and Y, which may be the same or different, represents fluorine, chlorine or bromine, and a benzoazole having the general formula:   <IMAGE> where Z represents oxygen or sulphur, A represents hydrogen, alkyl of 1 to 8 carbon atoms, alkoxy, hydroxyl, sulphonate, carboxylate, cyano, halo, nitro or optionally substituted amino, n is from 1 to 4 and m is 1 or 2 such that when m is 2 each A may be the same or different.
Patent GB-2251708-A (GB)
Title: Automatic water control apparatus
Inventor: GOLDSMITH AARON
IPC: A01G25/16
Filed: 1991-01-14
Abstract: Flow of water to a sprinkler is controlled by a main valve (11, Fig. 2) governed by a pilot valve 115. Initally pilot valve 115 is manually opened via lever 140 to allow flow of water from the upper to the lower side of a piston (18) via passages 32, 42, 38 which results in the main valve being opened. The water flowing to the sprinkler creates suction in pipe 154 by means of venturi 164. A porous sensor 152 e.g. of ceramics located in the ground being sprinkled allows entry of air to chamber 112 through conduit 144 while the sensor is dry. The pressure in the chamber 112 is then such as to maintain the position of the diaphragm 104 and pilot valve 115 as shown so that the main valve is held open. When the sensor 152 is wet, air cannot pass and the vacuum in chamber 112 increases, plug 122 blocks passageway 42 to cause the main valve to close (Fig. 2C). When the sensor 152 again becomes dry the vacuum in chamber 112 will reduce and the cycle will be repeated. If the conduit 144 is severed, or if safety valve 200 is manually opened, the vacuum in chamber 112 will be removed and spring 132 will cause plug 126 to block passageway 42 (Fig. 2A) and the main valve will close. <IMAGE>
Patent GB-2239114-A (GB)
Title: Content addressable memory
Inventor: OATES MARTIN JOHN
IPC: G06F17/30
Filed: 1991-01-17
Abstract: A content addressable memory consists of a plurality of memory units 11-13 each of which may be an integrated circuit. Each unit receives an input group of digits forming all or part of an input key code, and compares it simultaneously with a plurality of equally sized groups of digits stored in the unit. A respective status bit S indicates whether or not the input group matches a stored group. The match need not be perfect and certain digits may be masked. The status bits are stored so that the addresses of groups matching the input group can be discovered from them. For an input key code having several input groups of digits, the input groups are applied sequentially to the units. The units produce a "just one" output J when only a single match to an input group is found. The "just one" outputs are combined logically 15, 18, to produce a hierarchy of "just one" outputs. For a multi-input group key code, the "just one" output can be used to terminate the search before all input groups have been searched. The status bits are also combined logically to produce a hierarchy of successively higher order status bits selectively indicating the presence of a match in successively larger groups of storage elements. <IMAGE>
Patent GB-2247003-A (GB)
Title: Beverage dispenser
Inventor: BINGLER DOUGLAS J
IPC: B67D1/10
Filed: 1991-04-16
Abstract: A beverage dispenser which can dispense carbonated beverages and/or uncarbonated beverages. The problem with beverage dispensers is the utilization of a number of pumps and motors which makes the system large. The invention employs a single integral cylinder with the chambers to receive pistons for the various liquids. The dispenser (10) includes a cylinder (12) having first (14) and second (16) chambers. A first piston (18) is in the first chamber (14). A rod (20) extends from the first piston (18) into the second chamber (16) and has a second piston (22). The retraction of the piston (18, 22) will draw liquids into the chambers (14, 16) and upon compression of the pistons (18, 22) the liquids will be directed into a mixing chamber (42) then into a drinking container (66).
Patent GB-2243861-A (GB)
Title: Improvements in reflector systems
Inventor: STEWART DOUGLAS LUNAN
IPC: E01F13/02
Filed: 1991-04-30
Abstract: A reflector system for delineating roads comprises retro-reflectors rotatably mounted on a cord tensioned between supports. Each reflector comprises a boss (13) supporting two or more blades (10, 11) set at different angles relative to the cord. The angles are selected both to provide a rotational force from the wind and to ensure high reflectivity for any direction of incident light either as the reflector rotates, or from the random orientation of reflective surfaces along the cord if the reflectors are stationary. Rotation also reduces accrection of mud on the reflector, by generating centrifugal acceleration by increasing the exposure of the reflective surfaces to the cleansing effect of rain. <IMAGE>
Patent GB-2246674-A (GB)
Title: A hard disk storage motor drive system
Inventor: GAMI BIPIN V
IPC: G11B19/20
Filed: 1991-07-19
Abstract: A hard disk drive digital storage system provides increased power efficiency and reduced power losses by using a switching regulator type DC to DC Power converter 38, to control spindle motor speed, in which a variable duty cycle, low "ON" resistance n-channel Power MQSFET transistor 40 is coupled to the ground side of the motor drive circuit. A voltage booster circuit 28 provides higher gate control switching voltages to the motor power phase commutation switching transistors. A sense resistor 52 is connected between the converter and ground, and the voltage developed across this sense resistor provides a signal which is coupled to the motor control circuit 56 to vary the duty cycle of the converter to regulate the peak current applied to the motor. <IMAGE>
Patent GB-2251623-A (GB)
Title: Fire resistant sealing material
Inventor: WEXLER JONATHAN
IPC: C08J9/42
Filed: 1991-10-25
Abstract: The invention relates to a fire resistant sealing material which comprises a plastic foam carrier impregnated with and/or incorporating an inorganic filler, a sintering agent and optionally other additive(s), such that when the sealing material is heated to a temperature which decomposes the plastic foam constituents, a refractory residue remains which maintains substantially the original shape and integrity of the sealing material and provides an effective barrier to the passage of fire and processes for preparing the fire resistant sealing material.
Patent GB-2249766-A (GB)
Title: Instrument display
Inventor: FURUYA YOSHIYUKI
IPC: G09F9/00
Filed: 1991-11-14
Abstract: The object of the present invention is to eliminate a double image of a display apparatus for automobiles in which an image of a display (1) is reflected by a transparent reflection plate (2) towards a driver's seat so that a virtual image of displayed information, such as vehicle speed, can be seen. The display apparatus has a reflection plate having a first surface (2A) on a driver's seat side and a second surface (2B) on a side opposite to the driver's seat, at least a portion of the second surface corresponding to the display area of the first surface being angularly disposed in relation to the first surface. The display light falls angularly onto the first surface and is reflected to a viewing range. Display light reflected from the second surface (2B) is directed away from the viewing range. <IMAGE>
Patent GB-2253313-A (GB)
Title: Pulse motor control
Inventor: YASUDA AKIO
IPC: H02P8/38
Filed: 1992-02-07
Abstract: In a pulse motor control circuit for starting up and synchronizing with an external sync signal a sync pulse motor 1 for use in factory automation or precise machining and having a characteristic having a self-starting region and a through region, the control circuit applies a starting drive pulse signal 4, 10 via a switching circuit 3 to a motor driver 2 so as to start up and drive the motor to get in sync with the external signal, and switches the drive pulse signal to the external signal 6 for the synchronous revolution of the motor. The starting drive pulse signal has a variable frequency varied from a frequency in the self-starting region to that of the external sync signal. <IMAGE>
Patent GB-2268582-A (GB)
Title: Interferometer with noise reduction system
Inventor: LIDDELL WILLIAM JOSEPH
IPC: G01B9/02
Filed: 1992-07-09
Abstract: An optical interferometer wherein laser noise is reduced or removed by providing an additional optical path (15) in which the noise present can be ascertained and then subtracted from the measurement signal, also containing noise, such that the output signal has an improved signal to noise ratio. The noise may be identified using a-reference interferometer and both the measurement and noise signals may be appropriately processed (11, 24) and filtered (26, 28) before the subtraction stage (30). The system may also be adaptable to other forms of electromagnetic radiation. <IMAGE>
Patent GB-2258542-A (GB)
Title: Heat-sensitive recording material
Inventor: SHUKU SIGEKAZU
IPC: B41M5/337
Filed: 1992-07-23
Abstract: A heat-sensitive recording material comprises a support, a heat-sensitive colour forming layer containing a color former and a color developer, an intermediate layer obtained by coating an aqueous solution or aqueous dispersion of a resin, and an overcoat layer containing an ionizing radiation curable resin cured by irradiating with an ionizing radiation, a silicone surface active agent and a low molecular weight (1000-10,000) polyolefin resin particles. The heat-sensitive recording material is excellent in not adhering to the recording head and UV ink adhesion as well as in color density of the recorded images and image-preservation. The exemplified curable resin is an acrylate prepolymer cured by electron beam, the exemplified polyolefine is polyethylene, ethylene/propylene copolymer or ethylene/vinyl acetate copolymer of pesticide size 1-10 microns.
Patent GB-2257988-A (GB)
Title: Rosin-free low-residue soldering flux based on mixture of dicarboxylic acids
Inventor: BRISTOL SAMUEL VICTOR
IPC: B23K35/36
Filed: 1992-09-21
Abstract: A low-residue soldering flux contains a non-subliming dibasic acid mixture of succinic acid, glutaric acid and adipic acid dissolved in a volatilizable organic solvent and formed as a rosin-free flux. The solution contains 0.2 - 1% of the mixture, which preferably comprises 15 - 30% by weight succinic acid, 40 - 63% by weight glutaric acid and 10 - 30% adipic acid, and 99 - 99.8% of solvent, which is preferably an aliphatic or cycloaliphatic alcohol e.g. isopropyl alcohol, or aliphatic carboxylic acid ester or mixtures thereof, e.g. a mixture of dimethyl succinate, dimethyl glutarate and dimethyl adipate. The diabasic acid mixture is capable of volatilizing during heat-soldering to leave a soldered product (e.g., an electronic circuit board) essentially free from corrosion-promoting ionic residue. This eliminates the need for a residue-removing washing step.
Patent GB-2261184-A (GB)
Title: Wave soldering
Inventor: CLARKE ANDREW
IPC: B23K3/06
Filed: 1992-11-06
Abstract: In a wave soldering apparatus a nozzle 2 forms a solder wave beneath a predetermined path to be followed by the article such as a printed circuit board to be soldered and a device 3 within the nozzle is freely oscillatable in the range 0-9 Hertz for producing oscillations in the wave. 7 Hertz is a particularly suitable frequency. The device 3 is a rod supported on springs 7 whose tension is variable to adjust the frequency of oscillation. <IMAGE>
Patent GB-2261822-A (GB)
Title: Heat retaining and imparting covers for body parts
Inventor: OXER WILLIAM BARRY
IPC: A61F7/00
Filed: 1992-11-26
Abstract: A cover 10 is arranged to be located over a part of a body. Heat generated by the body is absorbed by a black portion 14 and a smooth surface 24 radiates a significant portion of that heat back to the body. A black fabric layer 30 of an intermediate portion 16 also has some effect in radiating heat back to the body. A metallic reflective layer 28 of an intermediate portion 16 also reflects heat back to the body. An outer portion 18 thermally insulates the cover and also assists in physically retaining the cover in position. The portions 14 and 16 may be movable relative to other parts of the cover. An electrically heated layer may be included. <IMAGE>
Patent GB-929070-A (GB)
Abstract: 929,070. Converting. ROTAX Ltd. Dec. 18, 1961 [Jan. 4, 1960], No. 315/61. Class 38 (2). [Also in Group XXVII] Spark ignition apparatus comprises in combination a pair of transformers, means adapted in use to supply current intermittently either to one or to both of the primary windings 8, 13 or 46, 47 of the transformers under the control of a switch 6 or 44, a pair of capacitors 28, 30 or 61, 66 connected across the secondary windings of the transformers through rectifiers 19, 24 or 59, 64 respectively, and a twin anode control gap 22 or 58 having its anodes connected to the capacitors respectively, the control gap being adapted to control discharge through a spark gap 33 or 69 and the arrangement being such that in use the energy of discharge can have one of two values dependent on whether the means is set to supply current to one or both of the primary windings. In Fig. 1 the terminals 4, 5 can be connected alternatively to a source of current by the switch 6. In Fig. 2 a switch 44 is employed to control current flow to one or both windings 46, 47. The current builds up by regenerative action until one or both of the cores of the transformers 48, 49 is saturated when the transistor 45 is cut off and the cycle is repeated.
Patent GB-2268997-A (GB)
Title: Fluid damper
Inventor: WEATHERLEY RICHARD MARTIN
IPC: F16F9/516
Filed: 1993-07-21
Abstract: A damper for use in a suspension system of a model car comprises an apertured piston and a member carried on the piston rod movable between a position spaced from the face of the piston when the piston moves in one direction to a position in which it abuts the face of the piston and closes one or more of the apertures when the piston moves in the other direction. The member may comprise a flexible membrane 50 fixed adjacent the face of the piston or a cup-shaped washer (66, Fig 3A) slidably fitted on the piston rod. The damper chamber wall is at least in part formed by a fluid tight diaphragm 52 to accomodate movement of the damper fluid as it is compressed, the diaphragm being located in a housing provided with one or more vent holes 64 communicating with atmosphere - a seal being formed by trapping the edges of the diaphragm between a shoulder in the housing and an end wall of a cylindrical chamber. <IMAGE>
Patent GB-2275652-A (GB)
Title: Passive fire protection.
Inventor: SPANO VINCENT WILLIAM
IPC: A62C2/06
Filed: 1994-02-15
Abstract: Passive fire protection comprises at least one layer (20) of a rubber compound containing a frit composition which when exposed to heat or flame will char and fuse the ceramic to form a layer within the char, together with one or more layers (12, 16) of ceramic fibre material. The insultant may be in the form of ceramic fibres which are felted and contained in an enclosure (Figure 2). The felted ceramic fibres may be further formed into a sheet which may be folded in a sinous shape (Figure 3). <IMAGE>
Patent GB-2276025-A (GB)
Title: Radio tag alarm system
Inventor: BARWELL ADAM PETER
IPC: G08B21/02
Filed: 1994-03-14
Abstract: The alarm system includes a transmitter 21 which can be carried by a child and a receiver 10 carried by the child supervisor, the receiver giving an alarm signal if the child is beyond the transmitted signal distance. The transmitter is adapted to provide a signal, the receiver including electrical circuit components arranged so that the receiver is disabled by the signal from the transmitter but adapted to energise alarm means when not so disabled, there being personal retention means for the transmitter, the transmitter and receiver being independently portable whereby to permit monitoring of the position of a person retaining the transmitter relative to a movable location or base for the receiver. The personal retaining means is in the form of a releasably two-part coupling 21- 23, the transmitter being energised only when the two parts are coupled. <IMAGE>