baber/WOPTO huggingface dataset:
Patent GB-2052785-A (GB)
Title: Low profile optical coupling to planar-mounted optoelectronic device
IPC: H01L31/0203
Filed: 1980-05-12
Abstract: A planar optoelectronic device ind 10 mounted on a substrate 11, is coupled to an optic fibre 15 that executes a right angled bend to an optic fibre connector 14. Advantage, a flat package construction. <IMAGE>
Patent GB-2058531-A (GB)
Title: Reversible plough
IPC: A01B3/42
Filed: 1980-08-28
Abstract: When the plough frame of a semi-mounted rotary plough is rotated from one working position into the other, it is rotated over the mounting wheel. During this process, high moments of rotation act on the tractor so that its stability may be endangered. In order to reduce these moments of rotation, a proportion of the plough frame weight is systematically transferred to the tractor during the rotational process without notably lifting the plough frame. For this purpose, there serves the upper link rod of the three-point linkage, which link rod is designed as a hydraulic cylinder 15. <IMAGE>
Patent GB-2089786-A (GB)
Title: Process for synthesizing urea
IPC: C07C273/04
Filed: 1980-12-23
Abstract: An inert gas containing carbon dioxide and ammonia and separated from a urea synthesis effluent under urea synthesis pressures is brought into contact with an absorbent along with unreacted carbon dioxide and ammonia separated in high pressure distillation at a pressure of from 10 to 25 kg/cm<2> gauge to absorb substantially all of the carbon dioxide and the major portion of the ammonia, and is cooled to separate it from the resulting liquid ammonia and then is discharged. The inert gas can be treated with little or no danger of explosion by the above method.
Patent GB-2073057-A (GB)
Title: Developing Electrostatic Images
IPC: G03G15/09
Filed: 1981-03-03
Abstract: Electrostatic latent images are developed using one-component toner by employing a magnetic brush (either a roll (12) or belt (22)) to supply toner to a developer member (either roll (11) or belt (21)). At the transfer region between the brush and member, opposed magnetic poles may be provided. <IMAGE>
Patent GB-2072194-A (GB)
Title: Vinyl Terminated Reactive Liquid Polymers
IPC: C08G18/69
Filed: 1981-03-25
Abstract: Vinyl terminated reactive liquid polymers are prepared by reacting a hydroxyl terminated reactive liquid polymer with either a mixture of, or a pre-reaction product of, an iso-cyanate and an ethylenically unsaturated hydroxyl compound. In Examples, the starting polymer is an ethylene oxide adduct of a carboxy-terminated butadiene/acrylonitrile/2-hydroxyethyl acrylate copolymer.
Patent GB-2076511-A (GB)
Title: High-temperature reduced iron production
IPC: F27D3/00
Filed: 1981-04-09
Abstract: High-temperature reduced iron production uses either a hot charging installation for charging reduced iron produced by a reduction furnace directly into a steel making furnace, or a storage tank for the reduced iron fed from the reduction furnace, and a briquetting plant associated with the storage tank. If the briquetting plant is remote from the furnace the reduced iron may be transported between them via a transportable container. According to one aspect of the invention, a reduced iron installation is characterized in that a transportable container 1 has a charge/discharge mouth section 1a provided with a sealing valve 6 and a plurality of support legs 2 and is arranged for 180 DEG rotation between a charge condition under the furnace to a discharge condition supported over the mouth of a storage tank 13 via its legs, a weighing device for said container in its discharge condition, and a cluster remover 8 disposed in the storage tank mouth and having a sealing valve which opens and closes, respectively, in response to detection signals from said weighing device indicating that said container is charged or empty. Another aspect of the invention provides a cluster remover comprising a grizzly feeder disposed obliquely within a cylindrical casing which is supported via an anti-vibration mounting on a fixed support surface, and a vibrating machine mounted on said casing. <IMAGE>
Patent GB-2075414-A (GB)
Title: Apparatus for molding a record disc
IPC: B29C33/40
Filed: 1981-05-01
Abstract: A molding apparatus for molding a record disc (134) includes a pair of mold plates (112, 114) adapted to form a mold cavity therein and a center hole forming pin (128) slidably mounted in one (112) of the mold plates. The center hole forming pin (128) is larger in diameter than the hole to be formed and has a projection (129) on its end which is of a diameter equal to the hole to be formed and a length about one-half the length of the hole to be formed. The other mold plate includes a projection (133) extending therefrom of a diameter equal to the diameter of the hole to be formed and a length one-half the length of the hole. In the molding of the disc the projection (129) on the center hole forming pin (128) engages the projection (133) on the other mold plate (114) to form a hole in which flash lines (138, 140) are spaced from the edges of the hole. <IMAGE>
Patent GB-2076428-A (GB)
Title: Aluminium manufacture
IPC: C25C3/20
Filed: 1981-05-06
Abstract: The manufacture of aluminium in an electric cell is characterised by providing heat pipes 24 extending into the carbon blocks 14 of the cell wall or walls to remove heat, and varying the rate of heat removal through the cell wall by adjusting the positions of the heat pipes, or varying the rate at which their condenser ends are cooled. In this way the bath temperature is regulated without having to reduce the rate of production. <IMAGE>
Patent GB-2079014-A (GB)
Title: Variable electrical power supplies
IPC: H02M3/335
Filed: 1981-05-12
Abstract: A variable electrical power supply unit includes a switch mode converter having a transformer (T1) with a primary winding to which input DC pulses are applied by the operation of FET switches (SW1, SW2), and a secondary winding (S1) connected to an output circuit including a diode (D3) arranged so that the converter operates as a flyback converter, energy being transferred to the output circuit each time the switches (SW1, SW2) are turned off. The converter operates over its normal range with an oscillator 5 and pulse width modulated drive circuit 3 supplying input pulses of constant frequency, the width of the pulses being controlled by a circuit 4 so as to maintain the output voltage or current constant at any selected value in the range, and the maximum power available over this range being limited by a fixed maximum permissible input pulse width. Individual pulse current is limited by a feedback winding S2. <IMAGE>
Patent GB-2101609-A (GB)
Title: Catalyst composition, production and use
Inventor: GAVENS PAUL DAVID
IPC: C08F4/646
Filed: 1981-07-14
Abstract: A support material is treated with an organic magnesium compound, a boron halide compound, a Lewis Base compound and a transition metal compound. The treatment with the boron halide can be carried out using a small proportion of boron halide relative to the support material and the treatment can be carried out at ambient temperature. The boron halide is conveniently boron trichloride and may be a complex with a Lewis Base, but any Lewis Base complexed with the boron halide is additional to the Lewis Base compound used in the treatment of the support material. The Lewis Base compound used to treat the support material is conveniently an ester and the transition metal compound is typically titanium tetrachloride. The product obtained may be used as a component of a polymerisation catalyst particularly for ethylene or propylene polymerisation.
Patent GB-2104133-A (GB)
Title: Improvements in or relating to a gantry-mounted beam for railway track renewal
Inventor: HARDELAY JACQUES
IPC: E01B29/02
Filed: 1981-08-13
Abstract: The present invention relates to a gantry-mounted beam for railway track renewal. The beam is of the type comprising at least two parts of rail grips (9) beam (1) and mounted on lateral supporting arms (10) secured to the beam and extending perpendicularly to its axis and in alignment with one another, and is characterized in that the spacing between the grips (9) of each pair of grips is variable. <IMAGE>
Patent GB-2107205-A (GB)
Title: Method of removing coke from particulate catalyst
Inventor: SCOTT JOHN W
IPC: C10G11/18
Filed: 1981-10-06
Abstract: Coke is removed from particulate catalyst by passing coke-containing catalyst downwardly through a vertical regenerator without backmixing, in a counter-current flow with respect to a regeneration gas having a limited free-oxygen content, so that nitrogen oxides are reacted to form free nitrogen in a substantially oxygen-free atmosphere in a intermediate level of the regenerator, and carbon monoxide formed in the intermediate level is burned in contact with coke-free catalyst with additional oxygen introduced into an upper level of the regenerator.
Patent GB-2087315-A (GB)
Title: Plasma etching of aluminium
IPC: H01L21/3213
Filed: 1981-10-13
Abstract: Process and gas mixture for etching aluminium in a plasma environment in a planar reactor. The gas mixture comprises a primary etching gas mixture and a secondary gas which controls the anisotropic character of the etch. A stable uniform plasma is generated at relatively high pressure and power levels, and this provides substantially faster removal of aluminium than has heretofore been possible in planar reactors. The primary gas mixture may comprise BCl3 + Cl2, or CCl4 + Cl2. The secondary gas may be SiCl4, CHCl3 or CCl4.
Patent GB-2111894-A (GB)
Title: Edge protector manufacture
Inventor: BAILEY LESLIE HAROLD EDWARD
IPC: B29C53/04
Filed: 1981-11-30
Abstract: In a process for the manufacture of individual edge protectors a maleable hot plastic sheet from an extruder head is passed into a thermoforming machine which has male and female forming blocks (C & d), and prongs (2) which when closed press strap retaining ridges, on to the top of the plastic angle from the underside. The forming blocks continue to travel the length of the machine, allowing the plastic to set, and return again to the original start position, making the process continuous. The formed sheet so made is cut into lengths the extruded thermoplastic sheet can vary in material, width, and thickness. <IMAGE>
Patent GB-2089759-A (GB)
Title: Spiro conveyor preferably designed for the titration and the spreading out of granular materials
IPC: B65G33/00
Filed: 1981-05-14
Abstract: The apparatus described is a spiro conveyor of a special design, used chiefly for the titration and the spreading out of granular material, having a housing provided with an input and an output hopper, in which housing is mounted a rotary shaft carrying a screw. The invention is characterized in that the screw (3), arranged as an elastic element, is fixed to the shaft (2) in such a way that its pitch can be varried at least near the input hopper (5). According to the described solution, a granular material, such as agricultural materials can be fed and spread out with a continuous setting by means of a simple apparatus.
Patent GB-2098673-A (GB)
Title: Fuel injection device for internal combustion engine
IPC: F02M59/10
Filed: 1982-04-01
Abstract: A fuel injection device for internal combustion engines having a plunger (59) of a comparatively small diameter, a servo piston (60) having a comparatively large diameter and adapted to actuate the plunger thereby to pressurize the fuel, and an injection nozzle (30) adapted to inject the fuel pressurized by the plunger. The fuel inlet port (77) to the servo piston chamber (76) and the outlet port 87 therefrom are opened and closed by a fluid-actuated valve member (61), the fluid actuation of the valve 61 in turn being controlled by a solenoid valve (111). A controller 20 determines when the solenoid valve is energised and de-energised whereby the rate and timing of the fuel injection are optimized over a wide range of engine operation. <IMAGE>
Patent GB-2097226-A (GB)
Title: A wide band transmitting/receiving switch
IPC: H04B1/44
Filed: 1982-04-13
Abstract: The invention refers to a transmitting/receiving switch in PIN diode technology substantially intended for the frequency range of 1.5-30 megahertz and transmitter power up to 1200 watts. Included combinations of inductances and capacitances, which have the purpose of isolating high frequency signals from direct current supply circuits and which according to earlier known design methods would have been expensive and difficult to implement for the above-mentioned frequency and power range are chosen according to form high-pass filters. In this manner lower and more easily implementable values are achieved simultaneously with decreased time constants and thereby also faster switching times. The direct current supply circuits are provided with active circuits connected in such manner that no resistances which can increase the time constants in switching from transmitting to receiving and vice versa are disposed in series with the current supplies. The direct current biases are held constant and well-defined by current generators.
Patent GB-2100413-A (GB)
Title: Safety device for gas heating appliances
IPC: F24C3/12
Filed: 1982-04-22
Abstract: A safety device for a gas heating appliance of the type having means to cut off the gas supply to the burner (2) when it falls to too low a temperature, and additional means to cut off the gas supply to the burner (2) when the oxygen content of the ambient atmosphere falls to a predetermined minimum level, comprises a thermocouple (6) which is subjected to the action of a metastable flame and develops a sufficient emf under normal operating conditions to keep open an electromagnetic cut-off valve (4) in the gas supply circuit to the burner (2), and incorporates an element (9) sensitive to temperature acting on the electrical circuit (5) connecting the thermocouple (6) to the electrically operated cut-off valve (4) in such a manner that the said circuit is completed under normal operating conditions and broken when the burner temperature falls to a predetermined minimum level. <IMAGE>
Patent GB-2098490-A (GB)
Title: Body support
IPC: A63B21/045
Filed: 1982-05-17
Abstract: Apparatus for supporting the body of a wearer comprises a breast plate (1) having a resiliently loaded inter-connection (3) with thigh bearing pads (5) whereby, on the wearer bending forwardly or downwardly, support is given to the body by the action of the resilient loading (3) from the thigh bearing pads (5). The breast plate (1) is shown having downwardly depending from it upper side members (2) having a pivotal torsion spring connection (30) with lower side members (4) extending up from the thigh bearing pads (5). The axis of each torsion spring connection (30) lies on or adjacent the transverse axis of the hip joints of the wearer. The apparatus is retained on the wearer by back belt (6) shown attached to the torsion spring connections (30). <IMAGE>
Patent GB-2128708-A (GB)
Title: Supporting ventilation ducting
Inventor: PAYNE DAVID JOHN
IPC: F16L3/00
Filed: 1982-10-14
Abstract: A system for supporting ventilation ducting in which lengths (13) of ducting have their ends connected together by frame members (17). Brackets (20) are secured, in a non swivelling manner to the frame members, preferably at their upper corners. The brackets (20) define channels (21) which receive the lower ends of rods (16), the upper ends of which are connected to an overhead support (15). <IMAGE>
Patent GB-2110185-A (GB)
Title: Intemodal freight containers
Inventor: CLIVE-SMITH MARTIN
IPC: B65D90/00
Filed: 1982-11-12
Abstract: A cuboid container comprises elongate frame members (e.g. 4, 5, 16) defining the edges of the container; panels, doors, floors or the like defining the faces of the container, and a respective corner member (20) at each corner of the container, substantially all of the ends of the frame members being within the periphery of and abutting a respective face of a corner member (20). <IMAGE>
Patent GB-2114265-A (GB)
Title: Sealing/centering pneumatic brake piston
Inventor: TREGONNING GEOFFREY ROBINSON
IPC: F16J15/32
Filed: 1983-01-17
Abstract: A piston particularly for use in railway brake cylinders, comprises a flexible piston seal 15 and a multi- function ring in the form of a separate wear band 16. The wear band is located close to and on the pressure side of the piston seal to minimise radial motion of the sealing ring if the piston rocks. In Fig. 1 the rubber piston seal 15, has a sealing lip 18 in contact with the inner wall of the cylinder 10. The wear band is chamfered at 19 so that the portion 20 of the wear band closest to the sealing ring 15 is the part of the wear band that actually contacts the inner wall of the cylinder. The plane about which the wear band rocks passes through the point 20 and this is closely adjacent the lip 18 which is the point of contact of the sealing ring with the cylinder. The wear band has a small scraper lip 23 projecting towards the sealing ring 15. Between the wear band and the sealing ring is a grease retaining cavity 24. This cavity is partially formed by an annular recess in the face of the piston seal 15 and partially by the shape of the rear face of the wear band 16. <IMAGE>
Patent GB-2118397-A (GB)
Title: In-the-ear hearing aid
Inventor: HUEBER FRITZ
IPC: H04R25/00
Filed: 1983-04-07
Abstract: An in-the-ear hearing aid for the hard of hearing comprising a hollow ear insert (9) which is closed by a cover plate (11) carrying a pivotally mounted battery mounting means (10), and a volume control means (14), wherein the cover plate (11) has an opening (12) which is closed by the battery mounting means (10) when it is pivoted into closing position, wherein the opening (12) in the cover plate (11) is enlarged laterally beyond the battery mounting means (10) and said enlarged opening portion (B to I) can be filled by a closure element (24) which is arranged adjacent to the battery mounting means (10) and which is in the form of a slide means (15) which carries the volume control means (14) and which is preferably mounted lockably in the cover plate (11). When the slide means (14) and the battery mounting mans (10) are in the "out" position there is an approximately rectangular opening through which repair and adjustment operations can be carried out. <IMAGE>
Patent GB-2119288-A (GB)
Title: Air spray gun
Inventor: CULBERTSON SAMUEL W
IPC: B05B7/02
Filed: 1983-04-29
Abstract: An air spray gun has a spray head assembly comprising separate but interconnectable elements including a fluid nozzle (52), a fluid inlet fitting (32) and a fluid nozzle retainer (54). The elements mount at a forward end (48) of the gun body without any screw- threaded attachment to the body, and an air cap (56) screw-threaded onto the fluid nozzle retainer (54) mounts an air nozzle (28). Because the elements are separate, the fluid nozzle (52) and fluid inlet fitting (32) may be manufactured conveniently of a corrosion-resistant material, such as stainless steel, thereby to prevent fluid passages (58,60) through the same from being corroded by fluid sprayed from the gun. Also, because the air cap (56) screws onto the fluid nozzle retainer (54) and not onto the gun body (50), there is no danger of damaging any screw threads on the body, which could otherwise require replacement of the body, the latter being made of aluminium or other relatively weak material. <IMAGE>
Patent GB-2123741-A (GB)
Title: Manufacturing moulded sheet material
Inventor: ANDO YOSHIO
IPC: B29C41/08
Filed: 1983-05-11
Abstract: Manufacturing a moulded sheet material is effected by charging a desired amount of synthetic resin powder (3) into a treatment container (2). The powder is spattered by agitation blades (4) so that the spattered power is forced to be adhered to and is fused on a predetermined shaped moulding mould surface (11) heated to the melting point or higher of the synthetic resin powder and is formed thereon in a fused and moulded coat of a predetermined thickness, and then the coat is solidified by cooling. <IMAGE>
Patent GB-2142383-A (GB)
Title: Carburettor with overrunning air supply to the idling system
Inventor: MIN DEI LAI
IPC: F02M3/055
Filed: 1983-06-30
Abstract: Air from a filter is admitted to the idling mixture passage 14 when a valve 36 is opened by a diaphragm 34 in response to overunning vacuum in the intake 14 manifold 42. <IMAGE>
Patent GB-2126816-A (GB)
Title: Power combining device for a microwave oscillator or amplifier
Inventor: OBREGON JUAN
IPC: H01P5/12
Filed: 1983-07-27
Abstract: In a power combining device for a microwave oscillator or amplifier, active elements 10 are coupled to one and the same circuit, such as a tuning device or a consumer load, by means of at least one radial section line 11 charged along an arcuate first end edge 12c by the active elements 10 and connected or coupled to the common circuit at its other end 12b. The active elements can be Gunn or Avalanche diodes or transistors (70, Fig. 7, 80, Fig. 8). Anti-interference resistors (36, Fig. 3, Rap Figs. 7 and 8, and 97 Fig. 9) prevent any transverse resonance. A dielectric cavity (75 Fig. 7) may be provided adjacent the radio section line or a tubular dielectric cavity (95, Fig. 9) collectively couples radial section lines (91) surrounding the cavity (95). <IMAGE>
Patent GB-2124575-A (GB)
Title: Apparatus for, and method of, charging of containers
Inventor: WILSON PETER GORDON
IPC: B65B9/20
Filed: 1983-07-29
Abstract: In a vertical, form-fill-seal, wrapping machine, downward flow of charges of product, from a charge dispenser 50 to the wrapper tube 21, is assisted by utilizing the Coanda effect to establish a pulsed product- entraining flow of gas in a nozzle 23 in the pathway which leads from the weigher to the wrapper tube. <IMAGE>
Patent GB-2128528-A (GB)
Title: Pressure-differential method for sleeve-to-tube joining
Inventor: STOL ISRAEL
IPC: B23K9/028
Filed: 1983-08-02
Abstract: In joining a sleeve 26 to a tube 22, the sleeve is inserted within the tube and joined to the tube by means of an internal welding apparatus 28 which is inserted into the sleeve for bonding the sleeve to the tube. The portion of the sleeve to be joined is then sealed at 50, 64 and said sleeve portion is internally gaseously pressurized. Once the sleeve has been so pressurized, the bonding operation is initiated. In the case of gas-shielded arc welding, the molten weld pool under the arc is continuously driven by the internal pressure gradient toward the tube. In this manner the arc force is cushioned by the molten pool at all times thus preventing the weld arc from piercing through the sleeve. The welding apparatus may also be used to effect brazing of the sleeve to the tube, the sleeve externally carrying braze material. <IMAGE>
Patent GB-2145693-A (GB)
Title: Coreless roll dispenser
Inventor: BARNARD BRIAN
IPC: A47K10/32
Filed: 1983-08-26
Abstract: A dispenser tor a coreless roll of web material eg toilet paper or paper towelling, comprises a housing within which a roll of material is supported in an upright position on a shelf 7. Material is fed from the centre of the roll through an opening in the shelf and passes over a roller 16 to a constricting aperture 22. The provision of roller 16 ensures that the path of the material to the constricting aperture is the same throughout the dispensing despite increasing size of the central bore of the roll. Aperture 22 may be surrounded by a bead 23 to ensure smooth dispensing and a chute 12 may be provided between the roller and the opening in the shelf 7. Water forming due to condensation may pass through drainage holes in upper part of shelf 7 and out through aperture 21 continguous with aperture 22. The rear wall of the housing may be fitted, eg by slot hangers 26, to a wall and the lid may be lockable and downwardly pivotable about axle 6 for reloading of the dispenser. <IMAGE>