baber/WOPTO huggingface dataset:
Patent GB-2038200-A (GB)
Title: Method and apparatus for the intermittent, regenerating cleaning of a filter bed
IPC: B01D46/30
Filed: 1979-12-21
Abstract: To free the granular material forming annular filter bed (11) from dust, it is periodically circulated in a closed cycle through a conveyor tube (14) and back to the bed via drop pipes (24), while a scavenging gas from inlet 2 flows through the bed in the reverse direction. In a separating housing (18) the granules swept along by the conveying gas stream from inlet (12) strike a deflecting member (15) and are deflected against the inner wall of the housing (18) and thence to pipes (24), while the dust-laden conveying gas is recirculated through a connecting pipe (19) into the crude gas chamber (20). The conveying gas enters chamber (20) tangentially and creates a cyclone-like rotational movement which separates the dust from the conveying gas and from the scavenging gas emerging from the bed. The entrance point E of the pipe (19) is chosen so that the end point of the helical line (S) comes to lie approximately opposite the gas exit (35) so that a large part (D) of the dust settles in zone (26) and is not carried into the crude gas channel (21) and thence to neighbouring filters. <IMAGE>
Patent GB-2047349-A (GB)
Title: Rotary Pumps
IPC: F01M1/02
Filed: 1980-04-14
Abstract: A gerotor pump comprises a casing 10 containing an inner rotary member 21 and an outer rotary member 15 each member being formed by a blanking operation from plate stock. The side surfaces of the members may be finished by grinding. The casing 10 may be an aluminium die-casting and closed by a plate 32. A drive shaft 29 may be constituted by one end of an I.C. engine crankshaft, Figure 3 (not shown) the pump then serving as a lubricating-oil pump. A shaft 36 for an accessory- driving pulley may engage with the shaft 29 at 28. <IMAGE>
Patent GB-2054556-A (GB)
Title: Preparation of hydroxy derivatives of 2-isopropylamino-pyrimidine
IPC: C07D239/46
Filed: 1980-04-15
Abstract: Compounds of the general formula   <IMAGE>  A4 = H or OH  A5 = H or OH  A6 = H or OH  A4 = A5 = A6 = H excluded  are prepared by treating compounds of the general formula   <IMAGE> A'4 = H or halogen  A'5 = H or halogen  A'6 = H or halogen  A'4 = A'5 = A'6 = H excluded with a mineral base in water at from 100 DEG C to 150 DEG C in the presence of copper. The compounds I are of therapeutical interest.
Patent GB-2076413-A (GB)
Title: Polyether polyol preparation
IPC: C08G18/18
Filed: 1980-05-21
Abstract: Polyether polyols useful in making a polyisocyanurate polymer are prepared by oxyalkylating an alcohol by the catalytic addition of an alkylene oxide to said alcohol in presence of a catalyst selected from the group consisting of carbamate salts, aminophenols, hexahydro-s-triazines and tetrahydrooxadiazines.
Patent GB-2053498-A (GB)
Title: Diazotype Materials
IPC: C07C241/00
Filed: 1980-05-30
Abstract: One- or two-component diazotype materials which are sensitive to visible light of wavelength 500 to 600 nm, enabling the copying of red originals and exposure with green light, contain diazonium salts of the formula   <IMAGE> in which each R1 and R2 is a hydrogen atom, an alkyl group having from 1 to 6 carbon atoms, an alkoxy group having from 1 to 6 carbon atoms, a halogen atom, a fluorinated alkoxy group having from 1 to 4 carbon atoms, a cyanoalkoxy group having from 1 to 4 carbon atoms or a trifluoromethyl group; each R3 is a hydrogen atom or a halogen atom; each of R4 and R5 is an alkyl group having from 1 to 5 carbon atoms or an aralkyl group in which the alkyl moiety has from 1 to 5 carbon atoms, or R4 and R5 together with the nitrogen atom to which they are attached form a 5- or 6-membered saturated heterocycle; Y is a carbonyl group, a group -COOR6 in which R6 is an alkyl group having from 1 to 4 carbon atoms, a group CONR4R5 in which R4 and R5 have the meanings specified above, or a nitrile group; and X is an anion.
Patent GB-2078844-A (GB)
Title: Fastening device
IPC: F16B2/18
Filed: 1980-07-01
Abstract: A fastening device for tightening, for example, a chain, around a load and holding it in its gripping position comprises a base block 2 with an attachment point 6 for one end of the chain at one end and a pivot 4 for an intermediate lever 12 at the other. This lever supports a handle 20 at pivot 18, offset from the longitudinal axis of lever 12 through pivot 4. To tighten the chain handle 20 is pivoted anti-clockwise from the phantom line position 20' to meet abutment 16 on lever 20 and to cause that to pivot as well into the solid line position shown. The other end of the chain is attached to point 30 on handle 20 and, during this movement, point 30 moves over-centre so that in the final position shown tension in the chain tends to hold both handle 20 and lever 12 in the shut position. <IMAGE>
Patent GB-2059266-A (GB)
Title: Cleaning teeth
IPC: A61C15/00
Filed: 1980-09-16
Abstract: A method of cleaning the teeth comprising inserting between the teeth a cleaning device which in its simplest form is a strip of flexible plastics material. The strip contacts the tooth surface over a major part of its height and is drawn back and forth so as to wipe surfaces of the tooth which cannot be cleaned effectively using known devices. By tilting the strip the corner can be used to excavate the gum cavities which are inaccessible to dental floss. Various embodiments of tooth cleaning devices for putting the method into effect, are described. <IMAGE>
Patent GB-2072319-A (GB)
Title: Portable solar heating device
IPC: F24S20/30
Filed: 1980-10-13
Abstract: The device comprises two similar panels. Each panel consists of a thermally insulating dish 3. A partitiom 4 of matt black material delimits an inner space 6 within the dish 3. A closable opening 7 communicates through a wall of the dish with the inner space 6. The panels are hinged together at 9 for opening to expose the inner spaces to solar radiation and for closing with their rims abutting to enclose an insulated central space 5. When closed, the inner spaces 6 may be filled with hot or cold water to keep food in the central space warm or cool. <IMAGE>
Patent GB-2068347-A (GB)
Title: Stabilised alumina filler
IPC: C08K3/22
Filed: 1980-11-03
Abstract: A water stabilised polymeric composition incorporating a hydrated alumina filler, which is characterised by the presence of an effective amount of an antimony V compound. The compositions have a reduced tendency to absorb water and specific compositions find application as electrical insulation and in the production of dimensionally recoverable articles.
Patent GB-2088431-A (GB)
Title: Radiation shelter
IPC: E04H9/12
Filed: 1980-11-12
Abstract: A shelter comprises: a cavity (1) for receiving life to be sheltered; a roof (3) covering at least a portion of said cavity, and at least one aqueous, protective barrier layer (4) adapted to prevent transmission through said roof and into said cavity of at least a portion of radiation in a predetermined spectrum. The cavity walls may be impregnated with an oil suitable for dressing burns. <IMAGE>
Patent GB-2072387-A (GB)
Title: Method and apparatus for memory address modification in digital systems
IPC: G06F9/318
Filed: 1980-11-28
Abstract: A digital system, including a processor unit, a memory unit, and signal lines interconnecting the processor unit and memory unit for communicating memory addresses and instructions therebetween, includes apparatus for monitoring the signal lines to detect when a pre-determined instruction is accessed from the memory unit by the processor unit to issue a select signal that controls memory address circuits to modify the address signals that are applied to the memory unit. <IMAGE>
Patent GB-2067579-A (GB)
Title: Modified vinyl-aromatic polymers
IPC: C08F291/00
Filed: 1981-01-16
Abstract: Modified vinyl-aromatic polymers, which are suited for being moulded or vacuum-formed and which have an improved resistance to fissuring under stress, containing from 6% to 12% by weight of an ethylenically unsaturated nitrile and having the following characteristics:   a) at least 23% by weight of an elastomeric phase insoluble in toluene; b) the elastomeric phase has a swelling index in toluene greater than 10;   c) a melt-index of at least 1.5;   d) a bending-modulus greater than 15,000 kg/sq.cm;   e) a torsional modulus greater than 5,500 kg/sq.cm; and   f) an Izod resistance at 23 DEG C greater than 7 kg cm/cm.   The polymers are obtained in the Examples by an inversion process, i.e. a bulk prepolymerization followed by an aqueous suspension polymerization stage. The polymers adhere well to polyurethane and are resistant to perfluorinated refrigerant fluids.
Patent GB-2063685-A (GB)
Title: Blood vessel prosthesis
IPC: A61B17/11
Filed: 1980-06-04
Abstract: Blood vessel prosthesis, comprising a tubular element (1) of an inert, completely or partially non-resorbable material having no adverse tissue reaction. To the inside of the tubular element (1) an interior wall construction of a resorbable material with no adverse tissue reaction is fixed, which wall construction (2) has such a structure that passage of blood cells, such as erythrocytes and thrombocytes, into or through the same is permitted.
Patent GB-2071884-A (GB)
Title: Data input device for electronic timepiece
IPC: G06F3/0488
Filed: 1981-03-11
Abstract: A device is provided for the rapid and easy introduction of data into an apparatus, e.g., for setting a digital watch. A binary decision device continuously tests the state of a plurality of finger responsive sensors A, B, C and D and produces control signals for a operational unit. The operational unit comprises an up-down counter which can be incremented or decremented by signal F1 to F8 at different frequencies. An inertia effect is produced by maintaining counting of the up-down counter between two successive actuations of the sensors. Touching sensor B or C stops the counter. Sweeping A, B, C, D speeds the incrementing rate (up to a top rate) or slows the decrementing rate while sweeping D, C, B, A acts conversely. Touching A and D alone, respectively, single-steps the counter down and up. The amount by which the rate is speeded or slowed can be made to depend on the speed of sweeping the sensors as well as the number of times they are swept. Other embodiments use three buttons A (speed up), B (slow down) and C (stop). Pushing A+C single-steps the counter up while pushing B+C single-steps the counter down. The amount by which the rate is speeded or slowed can depend on the number of operations of A or B or also on the length of time A or B is held depressed.
Patent GB-2099662-A (GB)
Title: Secret communication systems
IPC: H04K1/00
Filed: 1981-05-26
Abstract: A communication system for transmitting information to a receiver (R) at a known movable location includes means for transmitting steerable beams of radiation from at two spaced locations (A and B). Means (E) are provided for encoding the information to be transmitted and for imposing the encoded information on to the steerable beams. The arrangement is such that the information may be received only at a position common to both beams. <IMAGE>
Patent GB-2082648-A (GB)
Title: Building frame truss
IPC: E04B7/02
Filed: 1981-08-24
Abstract: This invention relates to triangular roof trusses which are adapted to form part of the frame for an upper or sole storey within a roof, in order to make the trusses of manageable height for transport and handling, the truss is divided at the level of ceiling support bracing member 15, which is in two parts 16 and 16b each joined to spacers 16c. The side frame members 14 are formed in two parts 14a and 14b,which may overlap in the region of the member 16 to form a scarf joint. The truss has a central structured member 17. <IMAGE>
Patent GB-2086688-A (GB)
Title: Hanging display assembly
IPC: G08B15/00
Filed: 1981-09-07
Abstract: A hanging display assembly adjustably supports television sets (T) or the like. The assembly includes a horizontal track (10) and at least one vertical support member (14) depending from and movable along the track. The vertical support member can be locked in any selected location along the track, and the vertical support member has means for adjusting its length. A display assembly (16) is connected to the lower end of the vertical support member for supporting one or more of the display items. The display assembly includes universal mounting means for adjusting the angular orientation thereof relative to the vertical support member generally about both horizontal and vertical axes. <IMAGE>
Patent GB-2101604-A (GB)
Title: Hardenable composition
Inventor: JOHNSON RICHARD HAMBLET BLAKE
IPC: C08K3/34
Filed: 1981-11-23
Abstract: The invention provides a hardenable composition comprising from 30% to 75% by volume of aggregate particles, and from 70% to 25% by volume of an epoxy mortar, the composition containing from 5% to 9% by weight of epoxy resin binder and forming, after curing for seven days a product having a compression strength of at least 70 MPa.
Patent GB-2092307-A (GB)
Title: Field Detector for Underground Conductor
IPC: G01R33/028
Filed: 1981-12-01
Abstract: The field detector is in the shape of a tooth intended to be fitted to a bucket of a mechanical excavator. According to one arrangement, the tooth may have a body (1) made of steel which contains magnetic field detecting means such as orthogonal coils (3a, 3b) each having a respective core (5a, 5b) passing through diametric apertures (2a, 2b) in the body (1). The end faces of the cores (e.g. 6b) are thus open to the ambient medium. The end portions of the cores are insulated from the body by means of insulating bushes (4b). The body (1), also houses transmitter means which may have respective detecting and transmitting modes to make use of the coils for the dual purpose of detecting a field and transmitting a detected signal. According to another arrangement, the tooth, or part thereof has an extent which operates as an aerial for radiating a carrier frequency signal modulated by a field detector located, together with the transmitter circuitry, within a chamber in the tooth. A receiver in a cab of the excavator vehicle receives the transmitted signal and operates a warning device. The transmitter and receiver may cooperate in that a coding system is used to modulate the detection signal on a carrier frequency to characterise the signal from a tooth of its respective excavator, i.e. where more than one excavator is operating on the same site. A Hall effect device may be used instead of the coils. <IMAGE>
Patent GB-814919-A (GB)
Abstract: 814,919. Automatic steering control systems. BENDIX AVIATION CORPORATION. April 24, 1957 [May 9, 1956], No. 13089/57. Class 38 (4). [Also in Group XX] In a system for automatically erecting a free gyro about two suspension axes, torques applied about two axes are controlled during an initial period by signals dependent on deviation of the rotor spin axis from a predetermined angular position about only one suspension axis, and thereafter the torque applied about each suspension axis is controlled by a signal dependent on deviation of the rotor spin axis about the other suspension axis. A gyro vertical 8 is positioned in a craft as shown and bank deviations of the rotor spin axis from a dynamic vertical determined by a pendulum 46P are detected by interconnected inductive pick-offs 39, 45 signals from which are applied through a transformer 205 and a combined transistor and magnetic amplifier 51 to operate a torque motor 23 which precesses the gyro to correct the bank deviations. During an initial period after starting the gyro the bank deviation signals from transformer 205 are also applied through a second combined transistor and magnetic amplifier 35 to operate a torque motor 21 which, under these conditions, tends to bring the rotor spin axis parallel to the bank axis. This is prevented by stops (not shown) but the shift that does take place prevents nutation and, because of rotor friction, produces rapid erection about the bank axis. During this period damping is provided by a brake 106. After a delay period determined by a thermal delay switch 104 and sufficient to allow complete erection about the bank axis a relay 1041 is operated to change over control of motor 21 to interconnected inductive pick-offs 25, 26 which detect pitch deviations of the rotor spin axis from a dynamic vertical determined by a pendulum 32P so that pitch deviations are corrected in a manner similar to that in which the bank deviations are corrected. Simultaneously with the operation of relay 1041 brake 106 is released to remove the damping. After a further delay period determined by a second thermal delay switch 117 a relay 123 is operated to reduce the voltage applied to the magnetic amplifiers so that normal erection of the gyro takes place at a slower rate than the initial erection. Specifications 752,909, [Group XXXIX], and 796,370 are referred to.
Patent GB-2094252-A (GB)
Title: Water-jet steering mechanism
IPC: B63H11/113
Filed: 1982-02-26
Abstract: A steering mechanism for a water- jet propelled craft having a rotatable propulsion nozzle 12 comprises a fine steering control 18 and a coarse reversal control 21. The controls 18 and 21 rotate the nozzle 12 via a differential gearbox 14 consisting of four meshed bevel gears rotatable in bearings within a gear cage 20. The steering control 18 is operative to rotate a gearbox input shaft 15 via a worm and pinion reduction gear 16 and 17, and the reversal control 21 is operative to rotate the cage 14. The nozzle 12 is connected to a gearbox output shaft 13. The reduction gear 16 and 17 inhibits torque feedback from the reversal control 21 to the steering control 18, and torque feedback from the steering control 18 to the reversal control 21 is inhibited by hydraulic ram actuation of the reversal control 21. <IMAGE>
Patent GB-2116060-A (GB)
Title: Oil-water separator
Inventor: VIRRILL ALAN
IPC: B01D17/02
Filed: 1982-03-05
Abstract: A separator for separating oil from water comprises a multi-stage coalescing corrugated plate pack 10, preferably combined with a gravity separator 5 at its inlet end and connected to receive the oil/water mixture without pumping on the inlet side. The mixture is fed to the separator by gravity or is sucked into the separator by a pump 1 connected to the separated water outlet. A pump 2 for separated oil may also be provided. The absence of a pump on the inlet side ensures that the oil reaches the separator as relatively large droplets which are easy to separate. <IMAGE>
Patent GB-2098503-A (GB)
Title: Stripper device for shredding machines
IPC: B02C18/14
Filed: 1982-03-31
Abstract: This invention relates to stripper devices 10 engaging in the gap between bladed discs 7,8 of a shredding machine each bladed disc 7, 8 having a separate stripper device 10 fastened on the housing in non- rotatory and positionally secured manner. The surface of each stripper bears close to a spacing disc 9 on the outer periphery thereof along a sector portion which may be about 70 DEG . The stripper device 10 may have a square-section excision 12 traversed by a square-section shaft 11 which is fastened to the housing. <IMAGE>
Patent GB-2096844-A (GB)
Title: Electrical fuse
IPC: H01H85/045
Filed: 1982-04-08
Abstract: A time delay electrical fuse has a fuse element comprising a conductive wire 5, a spiral spring 7 and a fusible solder connection 6 connecting the wire and spring in series. The fuse element is mounted between two conductive posts 3, 4 with the spring under tension. Surrounding the wire adjacent the fusible connection 6 is a resistor 8 which is connected in series with the fuse element via the post 3. In addition to its current limiting function, the resistor also serves as a heat source for heating the fusible connection and assisting fusing of the latter upon sustained overload currents, whilst improving the fuse's ability to withstand surge and transient currents. <IMAGE>
Patent GB-2099052-A (GB)
Title: Equipment for use underwater
IPC: B63C11/40
Filed: 1982-04-13
Abstract: An apparatus (2) for fitting spring clips (9) to an underwater installation (12) having a cylindrical surface comprises a supporting structure supporting a ram (10) for holding a plurality of spring clips and means for moving the spring clips (9) into register with the ram whereby they can be fitted individually to the underwater installation (12). The means for moving the spring clips into register with the ram can comprise a releasable holding means such as a hydraulic brake co-operating with a means for biasing the clips towards the register position. The supporting structure can comprise an arch-like framework (4) for resting on a pipeline (12) onto which the spring clip is to be fitted. The spring clips (9) can be of curved shape and extend over more than a half circle and conveniently the ends are turned outwardly to facilitate installation. The clip is similar in shape to a bicycle clip. <IMAGE>
Patent GB-2119674-A (GB)
Title: Air filter element
Inventor: MARSHALL DENNIS ALBERT GEORGE
IPC: B01D46/24
Filed: 1982-05-05
Abstract: An annular filter element comprises pleated filtering paper (10) in the form of a cylinder which is sealed at its ends in end caps (12 and 14) made of a substantially rigid moulded synthetic plastics material. Each end cap has an annular groove (24) formed in its outer flat surface so as to receive the root portion of a sealing ring (20 or 22) which is made of a soft synthetic rubbery material so as to yield or deform under pressure. Preferably, each sealing ring has an outer face and two lateral faces of concave shape. The rings may be preformed and secured to the end caps by adhesive or moulded into the end caps, either after or during the moulding of the end caps themselves. <IMAGE>
Patent GB-2101135-A (GB)
Title: Anti-inflammatory, analgesic, antipyretic, water-soluble compound and process for its preparation
Inventor: BRUGIONI DR MARIO
IPC: C07F9/12
Filed: 1982-06-18
Abstract: 2',4'-difluoro-4-phosphonoxy- (1,1'-diphenyl)-3-carboxy acid and pharmaceutically acceptable salts thereof are disclosed. They are prepared by reaction of 2',4'-difluoro-4- hydroxy(1,1'-diphenyl)-3-carboxy acid with phosphorus pentachloride and subsequent hydrolysis.
Patent GB-2107195-A (GB)
Title: Method and apparatus for implanting cardiac electrodes
Inventor: HEILMAN MARLIN STEPHEN
IPC: A61N1/05
Filed: 1981-02-04
Abstract: A method for implanting electrodes adjacent a patient's heart without requiring major surgery by making an incision (104, 102) in the anterior thoracic and/or in the abdominal wall, respectively and creating tunnels (110, 108) under the skin by means of a special implantation tool (60) from the incisions to the heart. The electrodes (10) cooperate with the tool such that the electrodes are implanted against the heart surfaces through the tunnels and then the tool is withdrawn from the patient with the electrodes remaining in place.
Patent GB-2108696-A (GB)
Title: Variable speed cine camera
Inventor: GOTTSCHALK ROBERT EDWARD
IPC: G03B7/085
Filed: 1982-10-27
Abstract: In a cine camera having an intermittent film advance mechanism driven by a variable speed motor, a pair of polarising filter discs 22 and 23 are situated in front of an interchangeable lens 18, one of the discs 23 being rotatable by a servo motor (25, Fig. 5) to adjust the amount of light passing through the lens in dependance on the speed of the film (no change in f-number being required). The motor speed control and connections to the servomotor may be mounted on the camera or in a separate box. The discs are supported by rods 19 connected to the camera body. <IMAGE>