baber/WOPTO huggingface dataset:
Patent GB-2041470-A (GB)
Title: Brake pad provided with wear warning
IPC: F16D66/02
Filed: 1979-02-01
Abstract: A brake pad of a disc or drum brake comprises a supporting plate tion (1), a layer of friction material (2) and an electrical contact assembly (6) which extends through the supporting plate to project into the layer of friction material and which comprises two terminal portions (18, 19) electrically insulated from each other by material (22) and a connecting portion (20) which electrically connects the terminal portions and is located wholly within the layer of friction material (2). The connecting portion is arranged to be exposed and abraded after prolonged abrasion of the friction material by contact with a braking surface whereby electrical contact between the terminal portions is broken. The contact assembly is connected into a warning circuit which produces a first warning signal when the layer of friction material has become abraded sufficiently to allow electrical contact between the connecting portion and the braking surface, and a second warning signal when the connecting portion has become sufficiently abraded to break the electrical connection between the terminal portions of the contact assembly - see Figs. 4 and 5 for details. <IMAGE>
Patent GB-2019550-A (GB)
Title: Plate heat exchanger
IPC: F28F3/08
Filed: 1979-04-09
Abstract: A heat exchanger particularly for use with dialysis units, consists of an assembly of heat exchange plates such as 2, 5 (e.g. of stainless steel) and intervening spacer layers 3, 4 (e.g. of resilient plastics material) each spacer layer defining with the adjacent plates a fluid flow path, alternate said flow paths being interconnected for the flow therethrough of a first fluid in heat exchange with a second fluid flowing in the intermediate flow paths in a relatively counterflow direction to that of the first fluid. Each spacer layer defines (with adjacent plates) a relatively long flow passage (e.g. 6 or 8) for the one fluid and also a short cross over passage (e.g. 9) cooperating with corresponding apertures such as 13 and 15 in the plates, for the other fluid. <IMAGE>
Patent GB-2023616-A (GB)
Title: Flame-retardant Composition and Flame Retarded Polystyrene Composition
IPC: C08K3/22
Filed: 1979-05-31
Abstract: Flame retardant additives for polystyrene comprise at least 50 per cent of a poly(brominated phenylene oxide) of MW at least 750 and containing at least 60% of bromine and an enhancing agent, e.g. antimony trioxide. Flame-retarded compositions which do not bloom comprise at least 50 per cent of high impact polystyrene, from 9 to 22 per cent of the poly(brominated phenylene oxide), and from 1 to 10 percent of the enhancing agent.
Patent GB-2028800-A (GB)
Title: Phenethanolamines
IPC: C07C237/30
Filed: 1979-07-02
Abstract: Compounds having the general formula (I):   <IMAGE>  wherein:    R<1> is hydrogen or fluorine; R<2> is hydroxy, aminocarbonyl, methylaminocarbonyl, dimethylaminocarbonyl, acetylamino or methanesulfonylamino; and the pharmaceutically acceptable salts thereof are useful in potentiating the antineoplastic activity of known oncolytic drugs.
Patent GB-2023658-A (GB)
Title: Nickel-based Alloy
IPC: C22C19/05
Filed: 1979-07-16
Abstract: The invention relates to a nickel- based alloy for use in moulds for moulding glass, and particularly in top tooling applications and for parts subject to high wear. The alloy, excluding incidental impurities, comprises    3-14 wt% chromium    2-9  wt% silicon    7-26 wt% iron  0.7-3  wt% boron the balance being nickel. p
Patent GB-2026862-A (GB)
Title: Filaricide implants containing diethylcarbamazine
IPC: A61P33/10
Filed: 1979-07-30
Abstract: Subcutaneous and intramuscular implants contain slowly available forms of diethylcarbamazine for controlling filaria parasites over an extended period of time.
Patent GB-2032241-A (GB)
Title: Shelf stable dessert product and method for manufacture thereof
IPC: A23L9/10
Filed: 1979-09-05
Abstract: A shelf stable dessert product which has a reversible gel structure at refrigeration temperatures is made by a method wherein a homogeneous, aqueous mixture of a gel-forming gum, starch, sweetening agent, and a proteinaceous source is provided, the fat content of the mixture is adjusted, the mixture is homogenized after the addition of any fat source other than cream cheese or cream, the mixture is heated to a temperature and for a time sufficient to pasteurize the mixture, the pH of the mixture is adjusted to below about 4.6, and the mixture is cooled to ambient temperature whereby a thixotropic dessert product is provided which is pourable at ambient temperature and is gelled at refrigeration temperatures.
Patent GB-2033074-A (GB)
Title: Apparatus for controlling the delivery of air into rooms to be ventilated and/or air conditioned
IPC: F24F13/075
Filed: 1979-09-06
Abstract: To ensure the forceful downward penetration of warm air into the room the air discharge takes place through a bottom opening (7'), and room air is induced to recirculate and mix with the fresh air through lateral openings (8', 9') which are partially blocked by flaps (13', 14'), as indicated by arrows (32'). When cooler air is to be blown into the room, in order to avoid draughts, the air discharge is diverted, and slowed, by adjusting the flaps (13', 14') to close the opening (7'). The flaps (13', 14') then divert the air smoothly through the openings (8', 9') doubling the through flow cross-section. In a modification, the lateral opening(s) (8', 9') are formed in the walls of duct (1') upstream of an air distributing device. <IMAGE>
Patent GB-2039795-A (GB)
Title: Screening Apparatus
IPC: B07B1/52
Filed: 1979-09-18
Abstract: A sizing screen comprising a noteable circular screen surface (1) having radially projecting metal rods is provided with a discharge means (30) to overcome problems associated with the clogging of sized material. The discharge means includes two ploughs for urging the oversize and undersize material, respectively, into discharge chutes (63, 64). The ploughs sweep a rotatable table (31) partitioned by a member (25) into two parts (42, 44) for the undersize and oversize material, respectively. <IMAGE>
Patent GB-2043052-A (GB)
Title: The purification of dicarboxylic acids
IPC: C07C50/02
Filed: 1979-12-18
Abstract: Long-chain dicarboxylic acids are purified by dissolving the acids or their salts in a lower aliphatic alcohol or tetrahydrofuran or an aqueous solution of the alcohol or tetrahydrofuran, removing insoluble solids from the solution and recovering the acids from the solids- free solution by precipitation and filtration. This method is particularly suitable for the purification of acids produced by fermentation of, for example, a normal paraffin substrate by means of a yeast fungi or bacteria. The method removes residual solids originating from the fermentation broth.
Patent GB-2039309-A (GB)
Title: Mineral - mining cutter assembly
IPC: E21C35/19
Filed: 1979-12-18
Abstract: A cutting means assembly for a mineral cutting machine comprises a cutter pick 3 having a parallel-sided shank 3' by means of which the pick 3 is removably mounted in a correspondingly shaped aperture 2 of a cutter pick holder 1. The cutter pick 3 has a longitudinal axis x-x and a bore 5 is provided in the pick shank 3' transversely to the longitudinal axis. The holder 1 has two co-axial bores 4, one at each end of the bore 5, which bores 4 are substantially in axial alignment with the bore 5. An elongate member 6 of spring wire for axially retaining the cutter pick 3 in the holder 1, is located centrally in the bore 5 of the pick shank 3' and supported at the end portions in the bores 4 of the holder 1. The retaining member 6 is hook-shaped and comprises a shorter securing arm 8 and a longer locking or latching arm 7 which engages through the cutter pick shank 3' and has two humps 9. The retaining member 6 is located in the bores 4, 5 under prestressing. <IMAGE>
Patent GB-2048847-A (GB)
Title: Method and apparatus for producing hollow microspheres
IPC: F24S80/60
Filed: 1979-08-17
Abstract: Hollow glass microspheres (17) made from a low heat conductivity glass composition containing a high vacuum and a thin metal coating (20) deposited on the inner wall surface of microspheres. The hollow glass microspheres (17) are used to make superior insulation materials in the construction of highly efficient solar energy collectors (29), (43). The hollow glass microspheres (17) are made by forming a liquid film of molten glass across a coaxial blowing nozzle (5), applying a metal vapor blowing gas (10) at a positive pressure on the inner surface of the glass film to blow the film and form an elongated cylinder shaped liquid film (12) of molten glass. A transverse jet (13) is used to direct an inert entraining fluid (14) over and around the blowing nozzle (5) at an angle to the axis of the blowing nozzle. The entraining fluid (14) as it passes over and around the blowing nozzle (5) fluid dynamically induces a pulsating or fluctuating pressure field at the opposite side of the blowing nozzle to form a spherical shape (17). <IMAGE>
Patent GB-2039549-A (GB)
Title: Looper drive for loop stitch sewing machine
IPC: D05B1/06
Filed: 1980-01-03
Abstract: A loop stitch sewing machine having a looper rocked in opposite directions by means of two plate cams 112, 113 which are mounted on a driving shaft 60 rotated synchronously with reciprocating motion of a needle. On a looper rocker shaft 12 attached to said looper, there are provided two follower members 131, 141 respectively engaging with said two plate cams, thus when said driving shaft rotates, said looper is rocked by said engagement without any play. The shaft 60 also carries a cam 111 which cooperates with a third follower 132 on shaft 12 for reciprocating the latter axially. <IMAGE>
Patent GB-2068617-A (GB)
Title: Anti-tamper device for a data transmission system
IPC: G08B29/08
Filed: 1980-01-28
Abstract: A transponder for a data transmission system, for example, for a security system, includes a receiver (12) for receiving interrogation signals in the form of a plurality of fixed frequency bursts equally spaced in time, and a transmitter (24) for transmitting answer-back signals in response thereto. The transponder includes means for generating an alarm signal for a period of time after the transponder goes "on-line" to indicate unauthorised tampering with the system. The transponder includes means for delaying the generation of the alarm signal and transmission thereof by the transmitter (24) for a controlled period of time after the transponder goes "on-line" to prevent detection of the alarm signal by a person attacking the system. The delaying means comprises a pulse- counting circuit comprising two pulse counters (18 and 20) programmed so as not to deliver the alarm signal until after a selected number of pulses has been received from the receiver (12) and counted, one of the pulse counters (18) being for determining the number of pulses which must be counted before the alarm signal is generated, and the second pulse counter (20) being for determining the number of pulses during which the alarm signal will then be generated and transmitted via the transmitter (24). <IMAGE>
Patent GB-2044836-A (GB)
Title: Device for holding a container cover open or partly open
IPC: B65F1/16
Filed: 1980-02-08
Abstract: A device for holding a cover 2 on a container 1 in open or partly open position, the cover being mounted so as to pivot relative to the container, springs not shown, being positioned in such a way as to urge the return of the cover to the closed position, comprises in combination at least one rib 6, 7 which projects from the inner wall of the cover and an elastically deformable component 8, mounted to as to project upwards from the upper edge of the container opposite to the open edge, the or each rib being able to co-operate with the component 8 in such a way as to deform it and pass beyond it during a cover opening movement, said component 8 forming an abutment for the corresponding rib and preventing the return of the cover to the closed position. <IMAGE>
Patent GB-2048653-A (GB)
Title: An appliance for processing food
IPC: A47J43/25
Filed: 1980-02-27
Abstract: An appliance for grating food has a rotatable drum (10) detachably received in a chamber to which food is fed via a funnel (24). Food grated by perforations in the wall of the drum (10) emerges from an outlet orifice (28). The base (30) of the chamber supports a rotatable shaft (32) which carries a drive member (38). The peripheral surface of the member (38) has a plurality of equally spaced helical ribs (40) each arranged to engage in a respective notch (44), Fig 4 (not shown) provided in the end-plate (18) of the drum (10). Rotation of the shaft (32) in the direction of arrow F causes the end-plate (18) to remain captive on the drive member during rotation. <IMAGE>
Patent GB-2044849-A (GB)
Title: A spark plug
IPC: H01T13/39
Filed: 1980-03-04
Abstract: At least one electrode, preferably the central electrode 10, is protected at its surface by an electrically insulating refractory material provided by a constituent in the electrode. The refractory material may consist of alumina resulting from oxidation of aluminium at the surface of an aluminium-containing ferritic alloy which may contain up to 22% chromium, 0.5 to 12% aluminium and 0.05 to 3% yttrium. Both electrodes 9, 10 of the plug may be protected by such an electrically insulating refractory material. The invention has one application in spark plugs for use in stratified charge engines. <IMAGE>
Patent GB-2076130-A (GB)
Title: Boiling water heater
IPC: F24H9/20
Filed: 1980-04-14
Abstract: A boiling water heater incorporating a tank 1 with an electrical heating element and water level control means actuable to maintain the water level in the tank within predetermined limits, wherein the supply of current to the element is controlled by the temperature in an inclined condenser tube 5 extending upwardly from the top of the tank. The condenser tube incorporates a steam exhaust flue 11, a temperature sensing bulb 8 and a cold water inlet 10. The supply of current is also controlled by a float comprising the water level control and the water supply is further controlled by the temperature sensing device. <IMAGE>
Patent GB-2060109-A (GB)
Title: Rock Bolt
IPC: E21D21/00
Filed: 1980-04-25
Abstract: A tie rod 3 has an end portion 9 of reduced cross-section surrounded 14 by a casing 4 fitted with a shear lining 8. Studs 10 on the portion 9 project into the shear lining 6. The bolt is anchored in the borehole bottom 14 and mouth 15 by, respectively, an external surface configuration 7 (of the casing 4 or of the tie rod 3) and a stressing and retaining element 13 (on the tie rod 3 or on the casing 4) or an external surface configuration 7 (on the casing 4). The tie rod 3 and casing 4 are relatively slidable under load. <IMAGE>
Patent GB-2061744-A (GB)
Title: Gas-mixing device
IPC: B01F5/04
Filed: 1980-10-08
Abstract: A gas-mixing device having a shell-and-tube heat-exchanger type structure, in which a first gas is supplied through relatively small-diameter tubes 2, and a second gas is supplied in a shell 3 accommodating a bundle of the tubes the second gas flowing into the tubes through small apertures 6 provided through the tube walls, whereby homogeneous mixing of these gases is carried out rapidly and safely without a risk of explosion in the tubes. Pressure loss through the device is relatively small. <IMAGE>
Patent GB-2062193-A (GB)
Title: Shell body for fin-stabilised projectile
IPC: F42B30/10
Filed: 1980-10-20
Abstract: The fin-stabilized projectile (1) has an ogival shell body (2) with a nose portion (3) at the forward end for mounting a detonator (4) and with a tail-tube with a finned tail unit (8) arranged at the rear end, the shell body (2) obtaining an internal cylindrical bore (9). The shell body (2) consists of a forward shell body portion (7) forming substantially three quarters of the body length and a rear shell body portion (8). The internal cylindrical bore (9) extends as far as the rear end of the forward shell body portion (7), whereby a large cylindrical cavity is obtained. For the sealing of the cylindrical bore, the rear shell body portion (8) is provided with a cylindrical extension piece (20) which engages in the cylindrical bore (9) of the forward shell body portion. The cylindrical bore (9) has a diameter (10) 0.75 to 0.82 of the calibre diameter (11) of the shell body (2). <IMAGE>
Patent GB-2071950-A (GB)
Title: DC-AC inverter circuit
IPC: H02M7/5383
Filed: 1981-03-06
Abstract: A high frequency inverter circuit comprises two transistors 1, 7 and a series resonant circuit comprising a capacitance 15, 16 and an inductance 14. The transistors 1, 7 are connected in series across a D.C. source 25 and the resonant circuit is linked with the series connection point between the two transistors 1, 7 for driving a load 26 which is connected across the capacitance 15, 16 in order to utilize high voltage induced on the capacitance 15, 16 by switching the transistors 1, 7 alternately in synchronisation with the natural frequency of the resonant circuit. The magnetization of the current transformer 13 may be controlled by adjusting the turns ratio of the windings or the values of the base drive resistors (3, 5, 9, 11) in order to reduce power losses due to both transistors (1, 7) being conductive simultaneously. Additional transistors (2, 8) are also provided to improve switching. <IMAGE>
Patent GB-2073630-A (GB)
Title: Sand-blasting equipment
IPC: B24C7/00
Filed: 1981-03-30
Abstract: Sand-blasting equipment capable of operating with wet common sand or wet silver sand comprises a gun (1) having a nozzle (2) at one end and a connection (3) with a shut-off valve (4) at the other for a high pressure water line (5). The nozzle (2) includes an injector for sand (6) drawn through a feed hose (7) from a hopper (9) in a container (8). The container has a compartment (10) and an inclined wall (11) between the hopper and the compartment with an aperture (12) covered by a mesh (13). A bleed hose (14) extends from between the nozzle (2) and the shut-off valve (4) and has an outlet (16) within the compartment (10) and directed towards the mesh (13). An inlet (17) for the feed hose (7) is adjacent to the bottom of the compartment (10), whereby water bled through the bleed hose (14) is directed at the mesh (13) and washes sand from the hopper (9) into the compartment (10) from whence the suspension of sand in water is induced to flow to the nozzle (2). <IMAGE>
Patent GB-811224-A (GB)
IPC: H04W88/02
Abstract: 811,224. Radio signalling. PHILIPS ELECTRICAL INDUSTRIES Ltd. Jan. 30, 1956 [Jan. 29, 1955], No. 2915/56. Class 40 (5). A radio system comprises a main station and substations in which when a substation calls the main station a control signal higher than the normal audio band is sent which causes the main station to transmit a blocking signal to the other stations, these substations being subsequently unblocked by a releasing signal transmitted by the main station. In the main station, Fig. 1, transmitter 1 and receiver 2 operating on different carrier frequencies are connected to aerial 4 by switch 3. The receiver output is applied via low-pass filter 9 to hybrid circuit 6. balanced by balancing impedance 5, the transmitter and receiver thereby being connected to telephone instrument 8. A filter 9 cuts off a control signal located above the speech-frequency band, which is applied to control signal receiver 10, and thereby to switch 11 and blocking signal generator 12. Switch 11 energizes the transmitter 1 and generator 12 and thus the transmitter radiates a blocking signal. The keying generator 13 is connected to switchboard 7 keying the transmitter and switches on the releasing signal generator 14 when exchanging device 7 is at the rest position. In the substation, Fig. 2, the transmitter 15 and receiver 16 are connected by relay 17 and 18 to aerial 19. The output of receiver 16 is connected to a switch 20, blocking or releasing the substation on receipt of the appropriate signal. When released the output of receiver 16 is connected through loud-speaker 21 and telephone receiver 22. When switch 23 is closed, the switch 20 energizes control signal generator 24 modulating transmitter 15 and relay 18 operates. A wavechange switch 25 connected to the switch 20 blocks the receiver until receipt of the releasing signal of that station, if it is switched manually to a second main station. To prevent misuse a retarding relay 26 energized by switch 23 connected. to switching device 20 disables the transmitter if 23 remains closed for a predetermined time. Specification 720,699 is referred to.
Patent GB-2076356-A (GB)
Title: Container carrier preform strips
IPC: B65D71/50
Filed: 1981-05-15
Abstract: A preform strip (10 Figure 1) of thermo-plastic material can be permanently stretched longitudinally so as to be transformed into a container multi- packaging device (110 Figure 2), having a plurality of container receiving apertures (114) which are defined by an outer band (122) and an inner band (125), with only a limited amount of material removed by rows of narrow transversely arranged slots (14, 16). On stretching, regions (25) produce inner band portions (125) which are generally V-shaped and slightly stretched, and regions (22) produce outer band portions (122) which are generally parallel to the longitudinal axis of the strip (10) and highly stretched and orientated. <IMAGE>
Patent GB-2078179-A (GB)
Title: Pneumatic wheel
IPC: B60B19/00
Filed: 1981-05-26
Abstract: A pneumatic wheel comprises an inflatable element 1 having a central passage 3 from the wall of which project two ridges 5 and a series of ribs 6 and two independent hub bearings 4 engaged in the passage 3 and having recesses 7 receiving the ridges 5 and ribs 8 between which fit the ribs 6. <IMAGE>
Patent GB-2078252-A (GB)
Title: Hydrogenative Coal Liquefaction
IPC: C10G1/00
Filed: 1981-06-12
Abstract: Non-liquefied solid components of the product of a liquefaction reactor 5 are concentrated in a hot separator 6 under approximately the same pressure and temperature conditions as in the reactor 5. Gaseous and vapour components are condensed in subsequent stages 9, 10, while the pumpable residue is withdrawn from the separator 6 and expanded. Hydrogen-containing recirculation gas from a gas cleaner 12 is fed through the hot separator 6 (directly at 17 and indirectly through the reactor 5) in contact with the outlet product of the reactor in a quantity of more than 5000 Nm<3> per tonne of (dry ash-free) coal. The oil for forming a coal slurry may be obtained in an intermediate separator 31 following the hot separator. <IMAGE>
Patent GB-2101244-A (GB)
Title: Retractable wheel chock for railway wagons
Inventor: SANDERS MAURICE ROYSTON
IPC: A61P27/02
Filed: 1981-06-24
Abstract: A retractable wheel chock assembly for railway wagons comprises the combination of a wheel chock (12) designed to act on the flange of a wagon wheel, and a friction brake (36) attached to the wheel chock and sliding along a guide rail (3) mounted just outside the railway track (4) on which the wagon is running. The wheel chock (12) is at one end of a cantilever arm (10) that can be swung out over the railway track or inwardly over the guide rail. Both the cantilever arm and the friction brake are mounted on a carriage (1) that is movable longitudinally of the guide rail, and a linkage between the arm and the brake ensures that the brake is actuated in response to the reaction force of the wagon wheel on the wheel chock. The wheel chock may be extended over the railway track, advanced along the track into abutment with a wagon wheel and braked, all in a single operative movement. <IMAGE>