baber/WOPTO huggingface dataset:
Patent GB-2059419-A (GB)
Title: Production of organic saturated aliphatic monocarboxylic acids
IPC: C07C53/126
Filed: 1980-08-08
Abstract: Saturated aliphatic monocarboxylic acids containing 6 to 9 carbon atoms are produced by oxidation of the corresponding aldehyde of the acid utilizing a combination of copper and manganese catalysts which are soluble in the acid produced.
Patent GB-2061243-A (GB)
Title: Method of making semiconductor devices
IPC: H01L21/316
Filed: 1980-09-10
Abstract: Silicon dioxide layers are deposited on semiconductor, eg silicon, substrates by heating a gas mixture comprising silane and/or dichlorosilane together with nitric oxide and/or dinitrogen tetroxide at a pressure below 20 Torr and at a temperature below 750 DEG C in a reaction vessel containing the semiconductor substrate. There is a need in semiconductor device technology to reproducibly form silicon dioxide layers of substantially uniform thickness, preferably at temperatures of not more than 750 DEG C, so as to avoid impairing the flatness of silicon substrates on which such silicon dioxide layers are formed.
Patent GB-2066769-A (GB)
Title: Tanker filling apparatus
IPC: G01F23/24
Filed: 1981-01-07
Abstract: In a tanker filling installation having a retractable filling pipe (12) which can be lowered into a tank (71) of a tank car, the filling pipe (12) carries a liquid level detector (70) adjacent its lower end. When the detector (70) becomes immersed in the liquid injected into the tank (71), a signal is given to increase the filling rate or alternatively to stop delivery. The detector (70) is preferably a thermistor. <IMAGE>
Patent GB-2069292-A (GB)
Title: Internal test method and apparatus for facsimile transceiver
IPC: H04N1/32
Filed: 1981-02-11
Abstract: A method of testing a facsimile transceiver to determine whether it is operating properly utilizes a document 14 having a test pattern 50 on a first portion thereof which is placed adjacent the read head 16 of the transceiver 10. The reading means 16 of the transceiver 10 is energized and the test pattern 50 is scanned. The output of the reading means 16, 30, when the transceiver 10 is being diagnosed, is directed to a digital memory and stored. Subsequently, the output of this memory is connected to the transmitter section and from there to the receiver section of the transceiver 10 which is then energized to display the contents of the memory on a second portion 52 of the document 14. Preferably, the test pattern 50 is located on a portion of a document 14 which does not encompass the entire circumference of a rotating drum 12. The reading means 16, 30 of the transmitter section of the transceiver is energized during a portion of each drum revolution corresponding to the passage of the test pattern 50 adjacent the read head 16 and the modulator/demodulator and writing means 18, 46 are energized during a different portion of the same drum revolution. <IMAGE>
Patent GB-2070402-A (GB)
Title: Surface irrigation apparatus
IPC: A01G25/09
Filed: 1981-02-25
Abstract: Surface irrigation apparatus comprises a carriage movable along an irrigation canal. A dam (30) is supported by the carriage in such a way that water flowing along the canal is incident upon the dam and is checked thereby and the carriage is pushed along the canal in the direction of flow. The carriage is provided with means for arresting its movement at desired positions along the canal. Preferably, the arresting means comprises on the carriage one or more arms (21%) which are releasably engageable with stops (23) on the canal although the arresting means could take the form of one or more brakes operated in accordance with the position of the carriage. The carriage also has means, such as syphon tubes (15), for transferring water from the canal to land to be irrigated. <IMAGE>
Patent GB-2073143-A (GB)
Title: Dispensing Liquids
IPC: A47K5/12
Filed: 1981-03-30
Abstract: A dispenser comprises a hollow body 6 adapted to receive a container 8 of product to be dispensed, a dispensing mechanism disposed 5 below the hollow body and means 16 within the body for puncturing a container of product inserted therein to permit discharge of product from   the container into the lower portion of the body. The lower portion of the body defines a reservoir of smaller volume than that of the container whereby the product accumulated in the reservoir acts to seal the punctured container and control the discharge of product therefrom. The container and the body are of complementary shape so that the container may only be inserted into the body in one position. <IMAGE>
Patent GB-2096289-A (GB)
Title: Combustion-chamber de- ashing system
IPC: F23H15/00
Filed: 1981-04-08
Abstract: A combustion chamber having a grate which is capable of being withdrawn for de-ashing purposes. The grate 1 is mounted on rails 2 and can be withdrawn passed guillotine doors 6 and 7 into a de-ashing compartment 3. The position of these doors serves to redistribute the live fuel and remove the ash from the grate during its withdrawal from the combustion-chamber. The ash removed is crushed in a crusher 4 before disposal. <IMAGE>
Patent GB-2070983-A (GB)
Title: Machine for development of exposed pictures
IPC: G03D5/06
Filed: 1979-08-10
Abstract: A machine for developing exposed pictures comprising a plurality of receptacles (2) for different processing liquids, a cylinder (4) arranged in each receptacle and arranged to be partly immersed in the liquid and to be rotated to carry a layer of such processing liquid on its envelope surface, a transport device (9, 10, 11, 12) arranged to transfer a series of pictures (14) to be developed in contact with the liquid layers on said cylinders the direction of transfer of the said pictures thereby being perpendicular to the direction of rotation of said cylinders.
Patent GB-2079751-A (GB)
Title: Process for the production of alkyl-phenyl propanals and some products thereof
IPC: C07C45/74
Filed: 1981-07-08
Abstract: A process for the production of 3 (alkyl phenyl) propanals wherein the alkyl group is secondary or tertiary and containing 3 or 4 carbon atoms, certain of which are known to be valuable in the perfumery industry, comprises reducing 3-phenyl prop-2-enal or 3- phenyl-2-methyl prop-2-enal to the corresponding 3-phenyl propanol, alkylating and subsequently oxidising the product to produce a 3- (monoalkylphenyl)propanal. Certain mixtures of meta and para isomers of the products containing 50-97% of the para isomer are considered novel. The process enables this group of chemicals to be produced more easily as compared to known processes for their production. In a preferred embodiment in one step of the process the alkylation of the 3 phenyl propanol is carried out under controlled conditions so as to favour the production of para isomer of the product.
Patent GB-2079604-A (GB)
Title: Pesticidal composition
IPC: A01N47/30
Filed: 1981-07-09
Abstract: A novel pesticidal composition containing an active-substance combination of N-(2-methyl-4- chlorophenyl)-N',N'-dimethylthiourea either with   <IMAGE>  or with   <IMAGE> together with inert carriers and additives. The novel composition is used to combat ectoparasites, particularly mites, especially ticks and mange mites, and insects, in particular sucking lice and biting lice, flies and fly larvae, as well as mosquitoes and mosquito larvae.
Patent GB-2082382-A (GB)
Title: High-pressure sodium vapour discharge lamp
IPC: H01J61/30
Filed: 1981-08-17
Abstract: The invention relates to a high- pressure sodium vapour discharge lamp (1) comprising a discharge vessel (3) with a ceramic wall. The discharge vessel also comprises xenon which, during operation of the lamp, has a pressure of at least 50 kPa. The power consumed by the lamp during operation is at most 200 watts. According to the invention the wall of the discharge vessel has a thickness the value of which is smaller than 0.5 mm and is at least 0.2 mm, eg. 0.45 mm or 0.3 mm. In this manners lamp with increased specific luminous flux is obtained. The discharge vessel may be constructed from polycrystalline material, eg. densely sintered aluminium oxide, of which at least 80% of the crystals have a largest dimension of at least 60  mu m. <IMAGE>
Patent GB-2104768-A (GB)
Title: Safety pin
Inventor: FAN BOR LIANG
IPC: A44B9/12
Filed: 1981-08-24
Abstract: A safety pin is formed of two wires, wound about one another to form a device with two fixed snap in rings. The first snap ring is formed by coil 11, curves 12, 13 crossing over to arcs 16, 17 and point 19 engaging in cover 18. The second snap ring intended for holding e.g. a label is formed by loops 21, 22, 23 and point 27 engaging in cover 26. Loops 22, 23 retain point 19 and cover 18 in aligned positions. <IMAGE>
Patent GB-2083037-A (GB)
Title: Process for Producing Ethylene Glycol
IPC: C07C29/32
Filed: 1981-09-01
Abstract: Ethylene glycol is prepared by reacting methanol and an organic peroxide of the formula R-O-O- R1, wherein R and R1 are each an alkyl or aralkyl group having 3 to 12 carbon atoms, in the presence of a minor amount of a basic material. Preferably, formaldehyde is present as a reactant in the presence of water. The presence of the basic material reduces the hydrogen ions which are formed and thus reduces the amount of methylal produced.
Patent GB-2106358-A (GB)
Title: Method of multiple signal collision detection on a transmission line
Inventor: AINSWORTH GERALD L
IPC: H04L12/413
Filed: 1981-09-12
Abstract: By coincidentally injecting a predetermined level of direct current with the transmission of data on a transmission line, multiple signal transmission on the line can be detached by the presence of a DC level greater than a predetermined level on the line. Once detected, tactics for avoiding multiple signal collision problems can be implemented.
Patent GB-2111639-A (GB)
Title: Shaft assembly for a gas turbine engine
Inventor: KING PETER RODERICK
IPC: F01D21/04
Filed: 1981-12-16
Abstract: If the shaft connection between fan (12) and turbine (16a) breaks, turbine overspeed results, with consequent throw off of blades. Extensive peripheral damage then occurs. The invention provides a torque tube (26) which in one example is directly connected to the shaft (18) so as to screw one end away from the other end if relative rotation occurs through shaft breakage and, in another example, screws a bolt away from a shoulder on the shaft and allows the shaft to move downstream under gas loads. In both cases the turbine (16a) collides with fixed structure, breaks up the blades and stops rotating. <IMAGE>
Patent GB-2113771-A (GB)
Title: Dispenser
Inventor: KEARNEY KEVIN DAVID NICHOLAS
IPC: B65D83/00
Filed: 1981-12-16
Abstract: A dispenser, particularly for pasty material, the dispenser comprising a tubular housing with a dispensing mouthpiece 3 at one end; a piston 22 which is displaceable inside the housing towards the mouthpiece to force material out of the mouthpiece; lever means 12 located to be operable from outside the container at the mouthpiece end of the container; and connecting means 20 connecting the piston 22 to the said lever means 12 whereby operation of the lever causes reciprocation of the connecting means 20 which results in the piston being advanced stepwise towards the mouthpiece of the container. The piston is only slidable on the connecting means in the direction towards the mouthpiece. <IMAGE>
Patent GB-2121902-A (GB)
Title: A coupling for an ostomy bag
Inventor: STEER PETER LESLIE
IPC: A61F5/44
Filed: 1982-03-11
Abstract: A coupling for joining an ostomy bag to a pad or surgical dressing is disclosed. Such a coupling includes first and second coupling elements 24 each of closed loop form to define a stoma aperture therein, the first (body side) element having a lateral flange 26 whereby it can be fixed to the pad or dressing and the second (bag side) element having a lateral flange whereby it can be fixed to one wall of an ostomy bag. The first element includes an inner wall 28 which continuously encircles the aperture and a series of projecting members 32 uniformly radially spaced from the inner wall and located in an array which surrounds the inner wall. The second element includes a rib member 50 encircling the aperture. The second element is constructed to make sealing engagement, when the coupling elements are joined, with the outer surface of the inner wall. The rib also has a step formation 54 arranged to engage the said projections to assist in holding the two coupling elements together. The rib member may have a deflectible sealing skirt 52 extending therefrom, which when the coupling elements are joined, engages the outer surface of the inner wall. <IMAGE>
Patent GB-2096365-A (GB)
Title: Controller for refrigerated bulk milk tank
IPC: G05D23/19
Filed: 1982-04-02
Abstract: A controller is provided for controlling the operation of a refrigerated bulk milk tank of the type including a condensing unit and an associated ice bank. The controller includes a main ice-bank control unit (IBC) operative, when enabled, to control the said condensing unit to maintain the quantity of ice in the ice bank at or above a predetermined working value. A time clock (CL) is arranged to enable the main ice-bank control unit (IBC) during low-tariff electricity supply periods only. To ensure that the quantity of ice in the ice-bank never falls to a dangerously low level, even in high-tariff periods, the controller is provided with an auxiliary ice-bank control unit (24, 25) arranged to override the clock control and initiate replenishment of the ice in the ice bank at any time upon the quantity of ice therein falling below a predetermined minimum value. <IMAGE>
Patent GB-2104364-A (GB)
Title: Seed drills
Inventor: TITE RAYMOND CHARLES
IPC: A01C7/20
Filed: 1982-08-19
Abstract: A seed drill having a coulter actuating mechanism comprising a beam (16) connected to the coulters (12) and operated by actuators (21), and depth control means (35, 36) that is operable to stop the actuators (21) as the latter move the beam (16) in a sense to force the coulters (12) into work, and is adjustable relative to the beam so as to be operated by the beam (16) as the latter assumes different positions corresponding to different depths of penetration of the coulters (12). The depth control means (35, 36) may comprise a hydraulic control valve (35) connected in a supply line (32) of hydraulic actuators (21) and a sensor mechanism (36) which is operated by the beam (16) and in turn operates said control valve. The control valve (35) may comprise a plunger-operated valve and the sensor mechanism a mechanical linkage that is adjustable relative to the plunger (37) of the valve and/or the beam (16) so as to adjust the position of the beam at which the control valve is operated to block the fluid flow and thus fix the depth of penetration of the coulters. <IMAGE>
Patent GB-2106435-A (GB)
Title: Precision forging
Inventor: EISEN MANFRED
IPC: B21J5/12
Filed: 1982-08-26
Abstract: Coupling members with a negative relief of their load-bearing contact surfaces, are produced by a rough-forging process followed by a cold gauging process. First of all contact surfaces (5) parallel to the direction of the forging stroke are produced with an admeasurement k at the top faces (2) in the marginal region adjoining edges (3). Subsequently, the top faces are cold forged with exact measurements so that every finished contact surface extends obliquely towards the top face enlarged by the gauging. <IMAGE>
Patent GB-2116456-A (GB)
Title: A spray nozzle
Inventor: RUBINSTEIN ZVI
IPC: B05B1/26
Filed: 1982-10-08
Abstract: A spray nozzle has a deflector (5) floatably supported by a jet issuing from an orifice (3) and mounted on a rod (4) extending though the orifice. The rod diameter is greater than 1/4 but less than 9/10 of the diameter. of the orifice. The defector includes a conically shaped deflecting surface (6) facing the nozzle orifice. The largest diameter of the surface is greater than the diameter of the orifice. Also, the nozzle body (1) has a deflecting surface (9) on its face surrounding the orifice, and the rod (4) has an integral stop (11) at its inner end to limit its axial movement. <IMAGE>
Patent GB-2109564-A (GB)
Title: Method and apparatus for testing the quality of the cell connections of multicell batteries
Inventor: NANN EBERHARD
IPC: H01M10/42
Filed: 1982-10-14
Abstract: To test the coil connectors 4 of batteries the exposed connectors are engaged by contacts 9, 10 mounted on a movable measuring head 8 at a measuring station 16. A measuring device is sequentially connected to the contacts to measure the potential drop across the connectors. The measured potential drop is compared with a predetermined value and in the event that a faulty connector is located the battery is moved to a holding store for faulty batteries. <IMAGE>
Patent GB-2108451-A (GB)
Title: Improvements in sun visor assemblies
Inventor: MERRIFIELD DOUGLAS HELIER
IPC: B60J3/02
Filed: 1982-10-15
Abstract: The frame wires (1, 2) of a sun visor body are sandwiched between the parts (17) of a plug assembly (16). The plug assembly (16) is received within a housing (6) for a pair of leaf springs (15) which bear on a support shaft (4) provided with opposed flats (36) for cooperation with the leaf springs to hold the visor in two stable positions. The leaf springs are each supported at their opposite ends, and an intermediate portion (38) of each spring is resiliently deflected on relative rotation of the housing (6) and shaft (4) from the stable positions. The plug parts (17) are each provided with an integral bridge piece (23) to enable the leaf springs to be assembled into position on the plug parts (17) prior to insertion of the plug assembly (16) into the housing (6). <IMAGE>
Patent GB-2107793-A (GB)
Title: Heat engines
Inventor: MCINNES MALCOLM BICKNELL
IPC: F02B75/02
Filed: 1982-10-21
Abstract: The engine includes a closed case 10 having a cylindrical chamber 12 with circumferential heat transfer surfaces in the form of radially projecting ribs 14. A displacer 20 having complementaty ribs 27 around the outer surface is rotatably mounted within the chamber 12. At a portion 28 of the circumference of the displacer 20 some of the ribs are removed leaving a working space 21 containing working fluid. A cylinder 32 in the displacer opens into the working space 21 and a piston 31 reciprocates within the cylinder 32 as the displacer 20 rotates so as to alter the volume of the working space. Different parts of the circumference of the case are maintained at different temperatures during operation so that the working fluid is subjected to changes of temperature and pressure during operation. Apart from the basic sinusoidal movement of the piston a superimposing lower amplitude oscillation may be applied to provide control of the thermodynamic operating cycle. <IMAGE>
Patent GB-2119163-A (GB)
Title: Slow-wave circuit for a traveling wave tube
Inventor: JAMES BERTRAM GORDON
IPC: H01J23/24
Filed: 1983-02-17
Abstract: A coupled-cavity slow-wave circuit for a millimeter-wave TWT is formed by forming cavities 50 through a metallic bar 54, or half- cavities in a pair of comb-shaped bars. The ends of the cavities are covered by cover members 60, 62, one of which has a longitudinal groove 66 to form "in line" coupling apertures between cavities. Alternatively, the coupling groove 66 may be formed in the bar 54. The cover members 60 and 62 complete the vacuum envelope. <IMAGE>
Patent GB-2116316-A (GB)
Title: Infrared radiation gas analyzer
Inventor: MIYATAKE KIMIO
IPC: G01J5/60
Filed: 1983-03-07
Abstract: An infrared radiation gas analyzer comprises an infrared detector 11 upon which infrared rays emanating from a sample of gas at a raised temperature are incident, a filter 9 for transmitting rays in a waveband radiated by the ingredient to be determined and a filter 10 for transmitting rays in an adjacent waveband, the filters being alternately inserted in the ray path to the detector, the concentration being determined by computer 13 from the difference as the ratio of the amplified electrical signals from detector 11. Alternatively, two detectors may be used one with filter 9 and the other with filter 10. The gas chamber 1 may have a heater 4 to heat the sample or may for example be an internal combustion engine exhaust pipe with a cell window 1a in the wall. <IMAGE>
Patent GB-2119390-A (GB)
Title: Powder coating composition
Inventor: MCROBBIE DAVID MARTYN
IPC: C09D5/28
Filed: 1983-04-13
Abstract: A curable powder coating composition suitable for electrostatic spraying to produce a "texture" finish comprises a polyester resin, an epoxy resin crosslinkable with the polyester resin, a natural or synthetic rubber or elastomer and, optionally, one or more of pigments, extenders and flow additives. The composition is produced by mixing, extruding and grinding the components.
Patent GB-2121087-A (GB)
Title: Mineral mining machines
Inventor: BROWN HENRY MCGAW
IPC: E21C35/18
Filed: 1983-05-11
Abstract: A mineral mining machine comprising a shearer disc or drum on which is mounted a plurality of cutter picks some of which are arranged to overhang the face side of the disc or drum to cut top and side clearance, and all of which are identical in shape and are mounted to have an identical angle of attack which lies in the range 20 to 35 DEG . <IMAGE>
Patent GB-2122769-A (GB)
Title: Projection device for microscopes
Inventor: NYMAN DR GEORG
IPC: G02B21/36
Filed: 1983-06-03
Abstract: In a projection device for microscopes, a biconvex lens 20 is located near a projection surface 12, 14, on the side facing the microscope, or on the side facing the observer, this projection surface having been rendered grain-free. <IMAGE>
Patent GB-2143755-A (GB)
Title: Vacuum extractor shroud for machine tool
Inventor: LOCK MATTHEW
IPC: B24B55/06
Filed: 1983-07-14
Abstract: A vacuum extractor shroud for a machining tool, having an opening through which the working part of the tool 2 protrudes, provided with gas jets A,B projected from the extremities of the opening through the interior of the shroud to the vacuum extraction point 10. The gas jets blow dust and swarf from the work into the vacuum pipe, and gas entrained by the gas jets increases the inward gas flow at the extremities of the shroud opening, thus eliminating the escape of dust to the surroundings. The extractor shroud is particularly for use in the dry grinding of ceramic and hard plastic materials, and the gas may be selected for its enhanced cooling properties in comparison with air. <IMAGE>
Patent GB-2145867-A (GB)
Title: Method and apparatus for editing and for replay of digital audio data recorded on a magnetic tape
Inventor: MCNALLY GUY WILLIAM WHITSEY
IPC: G11B27/28
Filed: 1983-08-26
Abstract: In producing an edited tape (31) the lead-in material up to a first edit point is separated from the lead-out material running from a second edit point by a space containing unwanted material and accommodating the actual or notional splice. The unwanted material ensures correct operation of error protection for all of the wanted material on replay. The first and second edit points are marked by codes placed on the tape (31) by a code processor (43) and supplementary head (42). During replay the digital data recovered from the tape by a head (32) is entered into a random access buffer store (34) under control of a write address generator (38) and read out to output electronics (37) under control of a read address generator (39) running at the audio sampling rate. The write address generator (38) normally runs at a rate corresponding to tape speed but the code processor detects the codes for first and second edit points and a control unit (51) stops the write address generator (38) between such points so as to discard the unwanted material. The store is then replenished by speeding up the tape by a comparator (40) and speed control unit (10) in an arrangement which preserves a constant relationship between the read and write addresses, i.e. a constant degree of filling of the memory (34).