baber/WOPTO huggingface dataset:
Patent GB-1293355-A (GB)
Title: Gaskets
Inventor: GREEN DERMOT
IPC: F16J15/10
Filed: 1969-11-19
Abstract: 1293355 Joint-making packing DOWTY SEALS Ltd 30 Oct 1970 [19 Nov 1969] 56613/69 Heading F2B A joint gasket comprises a base 8, Fig. 2, or 31, Fig. 6, of substantially uniform thickness having on a surface thereof a strip or strips of sealant material extending between parts of an area or areas subjected in use to high loading, e.g. adjacent bolt holes, and forming with the part of the base between the ends of the strip or strips a continuous seal between the joint parts, in use. The gasket 5, Fig. 2, has a central aperture 9 and sealant strips 12-15 on each surface of the base 8 extending between the high load areas adjacent the bolt holes 10, 11. Each strip gradually increases in width and thickness from its ends to a maximum at the centre. The gasket shown in Fig. 6 has four bolt holes 32-35, four apertures 36-39 and four sealant strips 40-43 on each surface of the base 31, each strip extending from one part adjacent a bolt hole and around the adjacent aperture to another part adjacent the bolt hole. The gasket base may be paper or asbestos and the sealant material, which may be deposited by a screen-printing process, may be an epoxy-resin composition, urethane or silicone.
Patent GB-1379919-A (GB)
Title: Method of preventing adhesion of or removing slime
IPC: C02F1/50
Filed: 1971-12-06
Abstract: 1379919 Inhibiting slime formation HEMLAB AG 6 Dec 1971 [8 Dec 1970 9 Dec 1970] 56631/71 Heading C1C [Also in Division C7] A method of inhibiting slime formation in an aqueous micro-organism-containing liquid (e.g. cooling water) in contact with a surface, or preventing adhesion of slime on, or removing slime from, a solid surface in contact with an aqueous micro-organism-containing liquid comprises adding to the liquid at least one aminopolyphosphonic acid and/or at least one salt thereof and a cationic surface active agent, the total amount of the added substances being not high enough to kill the micro-organisms in the liquid but high enough to destroy or substantially reduce their adhesiveness. The aminopolyphosphonic acid or salt may have the formula where X, X 1 -X 4 , Y 1 -Y 4  = hydrogen or alkyl having less than 3 C atoms, Z, Z 1 -Z 8  = hydrogen, ammonium or alkali metal.  The cationic agent may be alkyl trimethyl-, alkyl (e.g. lauryl) dimethyl-, benzyl- or alkyl tri- (methylbenzyl)-ammonium chloride or bromide, or alkyl pyridinium halide.
Patent GB-1281850-A (GB)
Title: Improvements in or relating to raw-edged v-belts
IPC: F16G5/06
Filed: 1970-11-30
Abstract: 1281850 Raw edged V-belt SEMPERIT AG 30 Nov 1970 [3 Dec 1969] 56828/70 Heading B5N [Also in Division F2] A raw-edged V-belt comprises a substantially trapezoidal-shaped core 3, reinforcement means 2 and a top cover layer 1 comprising either fibre fleece of wide-meshed fabric impregnated with an elastomer. The top cover layer may consist of a non-compacted polyamide randomlyoriented fibre fleece which preferably is prepared with a resorcinol formaldehyde resin-vinylpyridine latex-mixture. The elastomer of the top cover layer possesses a lower modulus of elasticity and a higher breaking elongation than an elastomer of the core. In a modification, a bottom cover layer 5, Fig. 2, is provided adjacent the base of the belt and two adhering layers 4 are also provided. The modulus of elasticity of the elastomer of the cover layers preferably amounts to less than one-third of the modulus of elasticity of the elastomer of the core, and preferably the breaking elongation of the elastomer of the cover layers is more than twice the breaking elongation of the elastomer of the core. The belt may contain an elastomer incorporating a sulphur-modified chloroprene. The fibre fleece may be formed of steel wool.
Patent GB-1364897-A (GB)
Title: Internal combustion engine with an exhaust gas afzer burning system
IPC: F01N3/26
Filed: 1971-12-09
Abstract: 1364897 I.C. engine after-burner control NISSAN MOTOR CO Ltd 9 Dec 1971 [28 Dec 1970] 57188/71 Heading F4T [Also in Division F1] A burner in an I.C. engine exhaust gas afterburner 20 is supplied with fuel and air in accordance with engine load, e.g. the position of the engine throttle valve 14 or the vacuum in the engine induction manifold 12. The air inlet to an electrically-driven air pump 31 is controlled by a throttle valve 32 which may be connected to the throttle valve 13 and the fuel flow is controlled by a spring-loaded valve 49 between a fuel chamber 45 and the fuel nozzle 37. Fuel is supplied to the chamber 45 by an electrically-driven pump 43 from a reservoir 42 and the fuel pressure in the chamber is controlled by a solenoid valve 55 in a return conduit 57 to the reservoir. The period of valve opening pulses applied to the solenoid valve is controlled by a controller 58 including an oscillator circuit, a pulse width circuit and an amplifier circuit. The pulse width may be controlled by a potentiometer 63 having a sliding contact connected to the throttle valve 13 to reduce pulse width with increasing throttle opening. A return line 60 from the chamber 45 to the reservoir 42 contains a solenoid valve 59 which is opened when the engine switch 33 is opened. An igniter plug 38 is periodically energized by a device 39.
Patent GB-1416723-A (GB)
Title: Sterilizing process and apparatus utilizing gas plasma
IPC: A61L2/14
Filed: 1972-12-12
Abstract: 1416723 Sterilizing with gas plasma BOEING CO 12 Dec 1972 [13 Dec 1971] 57317/72 Heading A5G Surfaces are sterilized by passing thereover in one direction for at least one minute a substantially uninterrupted flow of cool gas plasma, i.e. plasma which has been cooled at least to a temperature which does not cause significant change in the article to be sterilized. Apparatus for producing the plasma and contacting it with the article to be sterilized is depicted in Fig. 1. The process is described with particular reference to the sterilization of artificial lung blood oxygenators and constructions of sterilization chambers wherein all parts of such devices including the interiors of the capillaries are contacted with the sterilizing plasma (Figs. 2, 3 and 4 not shown).
Patent GB-1208749-A (GB)
Title: Moisture-sensitive element and circuit
Inventor: GAUDIO ITALO DEL
IPC: G01N27/12
Filed: 1967-12-20
Abstract: 1,208,749. Automatic moisture control. TEXAS INSTRUMENTS Inc. Dec.20, 1967 [Dec. 27, 1966], No.57903/67. Heading G3R. [Also in Division G1] In an arrangement for controlling the moisture content of the atmosphere, a relay RE is energized when the resistance of a moisture sensing element SU falls below a certain value. A D.C. supply for the circuit may be derived by tapping the voltage across a small resistance connected in series with a heating resistor or motor circuit incorporated in the control system.
Patent GB-1366720-A (GB)
Title: Treatment of gases
IPC: B01D53/77
Filed: 1971-12-14
Abstract: 1366720 Gas separation; calcium sulphate MITSUBISHI JUKOGYO KK 14 Dec 1971 [29 Dec 1970] 58118/71 Heading C1A Sulphur dioxide is removed from a gas stream as calcium sulphate by a process in which the absorbing liquid to be used in the absorber is oxygenated prior to admission into the absorber. The absorbent is a slurry of calcium hydroxide or carbonate. Preferably two absorbers are provided in series, the gas stream and absorbent stream flowing in countercurrent, in the first absorber the pH of the absorbent is 4 or below and in the second 7 or above. As shown flue gas in stream 1 is cooled in a tower 2, the cooling water in spray 3 removing dust particles in the stream. The cooled humidified flue gas is passed via duct 6 to an absorbing tower 7 where it is contacted by partially spent absorbent from tower 8 which is passed into a reservoir 11 from which it is pumped by pump 10 into the tower. A stream of compressed air is fed from compressor 12 to the bottom of reservoir 11 which is also equipped with a stirrer. Calcium sulphite in the absorbent is oxidized to calcium sulphate and any unreacted oxygen in the air passes into the absorber 7 mixing with the gas stream introduced through line 6. Part of the spent absorbent is led via line 13 to a settler 14 and thence to a separator 16 where gypsum is collected. The filtrate 17 from the separator is passed to make-up tank 19 for preparation of the lime slurry absorbent. Flue gas from tower 7 is led to the second absorbing tower 8 where it meets fresh absorbent led from tank 19 to tank 22. Tank 22 is provided with aerating means in the same way as tank 11. Cleaned gas from tower 8 may be vented to the atmosphere.
Patent GB-1442749-A (GB)
Title: Catalytic polymerisation of dodecanolactam
IPC: C08G69/00
Filed: 1972-12-18
Abstract: 1442749 Polylactams IMPERIAL CHEMICAL INDUSTRIES Ltd 1 Nov 1973 [18 Dec 1972] 58291/72 Heading C3R Poly(#-dodecanolactam) is made by polymerizing #-dodecanolactam in the presence as catalysts jointly of (A) oxalic acid or esterthereof and (B) an acid being hydrochloric, boric, phosphoric, or phosphorous acid, a phosphonic acid, e.g. cyclohexyl phosphonic acid, a sulphonic acid, e.g. p-toluenesulphonic acid, or Mg hydrogen phosphate. Based on the lactam there may be 0À1-3% wt. acid (B) and 0À1- 1À0% wt. oxalic acid or equivalent quantity of the ester. The reaction may be performed at 250-300 C., e.g. in an oxygen-free atmos. Water may be present. Chain-terminators, e.g. acetic, stearic, adipic or succinic acid, may also be present. The product may be moulded or melt-spun.
Patent GB-1399556-A (GB)
Title: Alkali-resistant glass compositions
IPC: C03C4/20
Filed: 1972-12-19
Abstract: 1399556 Zirconia glass PILKINGTON BROS Ltd 30 Nov 1973 [19 Dec 1972] 58613/72 Heading C1M A glass composition comprises, to an extent of at least 94%, in weight per cent  the balance, if any, consisting of other compatible constituents. The balance may comprise up to 5% of each of TiO 2 , Al 2 O 3 , B 2 O 3 , Fe 2 O 3 , F 2  and M 2 O, where M is Li, Na or K. The glass, which may be used in forming fibres, is highly alkali-resistant.
Patent GB-1405252-A (GB)
Title: Load spreader mechanism for swan neck derrick jib cranes
IPC: B66C13/08
Filed: 1971-12-22
Abstract: 1405252 Load spreader mechanisms for cranes A C MATLOCK 10 Nov 1972 [22 Dec 1971] 59833/71 Headings B8H and B8B  A crane with a swan neck jib J2 is provided with a barrel J to which is attached the normal hoisting rope J3. A circular plate P is suspended from shaft J4 of the barrel J by a pair of side plates P1. A bevel crown wheel B is supported above the plate P for rotation by a bevel gearwheel A mounted on the shaft J4. The wheel B is connected by a shaft B 1 to drive a crown wheel C mounted on a platform C1 rotatably supported by brackets (X), Fig. 3 (not shown) and rollers (K) on the platform C1. The crown wheel C meshes with four gears C2 driving four wire barrels Z with wires (Z1) fitted with lifting hooks for engagement with a container (not shown). When a container has been lowered over its stowage point the gears C and C2 may be locked by a brake (O) whereupon rotation of the barrel J will slew the platform C1 with respect to the plate P to orientate the container as required. The hoisting rope J3 drive to the barrel J may be replaced by a chain and sprocket mechanism E, El, E2, E4.
Patent GB-1381606-A (GB)
Title: Heat treatment of refractory materials
IPC: B01J8/42
Filed: 1971-12-30
Abstract: 1381606 Finely-divided zirconia AGENCE NATIONALE DE VALORISATION DE LA RECHERCHE 30 Dec 1971 [6 Jan 1970] 60790/71 Heading C1A [Also in Division H5] Refractory powders are heat-treated in an enclosure 2 wherein laminar elementary flows 10a, 10b, 10c of plasmagenic gas converge at a point 12 to form a principal fluidizing flow 26 which has a cross-section area at a distance away from 12 equal to the internal cross-section area of the enclosure 2, electric current traversing the convergent flows. Powder supplied from hopper 28 falls into the flow 26 and forms a fluidized bed of particles. The particles are vaporized or reduced in volume and are evacuated via opening 6 into a separator, e.g. a fractionating tube 30. Particles 34 escaping from the flow 26 are redirected into it by an auxiliary injector 38. The elementary flows are directed from plasma torches or nozzles 14a, 14b, 14c which may be adjustably orientatable. Each nozzle has its own arc-supporting power supply 16 across the anode 18 and cathode 20, a further circuit 22 including a 3 phase current generator 24 common to all the nozzles being closed through the elementary flows. The enclosure 2 may be cooled and inspection window 32 may be provided. A further embodiment has injection nozzles having only the common circuit arrangement and an inert chilling gas is inserted into the enclosure above the principal flow. The powder is supplied down a cooled pipe from a closed funnel which is supplied with a carrier gas. A pilot plasma torch serves to start and maintain the elementary flow at a conducting temperature. Decomposition of zirconium silicate or zircon into silica, zirconia and impurities and vaporization of zirconia are disclosed.
Patent GB-1249320-A (GB)
Title: Improvements in and relating to hatchway covers
IPC: B63B19/197
Filed: 1968-12-24
Abstract: 1,249,320. Hatch covers. CARGOSPEED EQUIPMENT Ltd., and J. G. BROWN. 20 March, 1970 [24 Dec., 1968], No. 61324/68. Heading B7S. A cargo vessel has a series of aligned hatchways A, B, C, each of the hatchways having two outer cover sections 10, 11 and hinged to each outer section an inner cover, section 12. The adjacent outer cover sections 10, 11 have sponsons 18, 13 secured respectively to their sides and extending parallel to the direction of alignment of the series of hatchways. The sponsons overlap and each is pivotably supported at its end by stools 20a, 15 respectively. Hydraulic jacks 21, 17 connected to respective sponsons open and close the outer sections 10 and 11. The sponsons and the hydraulic jacks are positioned outboard of the hatchways.
Patent GB-2000462-A (GB)
Title: Shears
IPC: B23D33/02
Filed: 1978-06-30
Abstract: A progressive shear, such as a rolling cut shear, in which a resiliently mounted support (110) is arranged adjacent one of the blades (102) so as to be engaged by the piece (108) being cut off. This reduces the bending of pieces of small width. <IMAGE>
Patent GB-2007240-A (GB)
Title: Acrylic Filaments
IPC: D01F6/38
Filed: 1978-10-23
Abstract: A filament is disclosed which is formed of a copolymeric material comprising monomeric units of acrylonitrile, at least one ethylenically unsaturated ester and at least one significantly homopolymerizable sulphonic monomer. Also disclosed are processes for producing such a filament, and solutions used in such processes. The filaments have high lustre dye yields. The said copolymeric material may be a terniary copolymer of acrylonitrile, the ester and the sulphonic monomer, or may be mixture of a copolymer of acrylonitrile and the ester and a copolymer of acrylonitrile and the sulphonic monomer. Preferred sulphonic monomers are alkali metal or ammonium salts of an acid having the formula:   <IMAGE> wherein R1 represents a hydrogen atom or an alkyl radical and R2, R3, R4, R5, R6, represent a hydrogen atom or alkyl, cycloalkyl or aryl radical.
Patent GB-2009304-A (GB)
Title: Clamp
IPC: B23K20/12
Filed: 1978-10-27
Abstract: A clamp, particularly suited to friction welding machines, has jaw carriers 14, 16 slidable on a base 10. Secured to the base 10 is a fulcrum pin 34 mounting a lever 20. Actuator 12 is attached (e.g. by its piston rod) to pin 34 (whereby the thrust acts along a line intersecting the axis of the pin 34.) A bar 18 is attached to actuator 12 (e.g. to its cylinder) and at its other end pivotally to jaw carrier 14. Movement of bar 18 is transmitted to lever 20 which is also attached to jaw carrier 16. This construction reduces interference with operator actions at one side of the clamp and minimises bending of base 10. <IMAGE>
Patent GB-2034485-A (GB)
Title: Magnetic brake/damper of electric measuring instrument
IPC: G01R11/10
Filed: 1978-11-13
Abstract: A magnetic brake/damper of an electric measuring instrument comprises two similarly magnetised permanent magnets 1, 2 with opposite poles, arranged one above the other and forming a gap accommodating a part 3 of the moving element of the instrument. Both permanent magnets are arranged so that their axes of magnetisation are parallel to the surface of that part of the moving element accommodated in the gap. <IMAGE>
Patent GB-2011815-A (GB)
Title: Milling Machine with Turning Facilities
IPC: B23B3/10
Filed: 1978-11-28
Abstract: The milling head of a conventional vertical milling machine is provided with holding means to which a tool holder 50 with a lathe turning tool 51 may be secured. The swivel top slide 5 of the machine can be coupled to a high speed motor and a work piece clamped to the work piece support thus machined using the machine as a vertical turret lathe, or as conventional milling machine using a rotating milling cutter. Means may be provided to avoid accidents which may be caused when the work piece support is rotated with high speed. <IMAGE>
Patent GB-2035632-A (GB)
Title: Multiprocessor system
IPC: G06F12/0806
Filed: 1978-12-01
Abstract: A multiprocessor system is described in which a plurality of central processor units 10, 12, 14 share the same main memory 22 over a common asynchronous bus 24. Each processor unit directs all memory requests to its own high speed cache memory 16, 18, 20. If the memory request is to read data from memory, a cache memory controller determines if the addressed data is present in the cache memory. If so, the data is transferred to the processor unit without accessing main memory over the bus. If the data is not present in the cache memory, the cache memory controller gains access to the bus by a priority circuit and reads out the data from main memory, storing the data in the cache memory at the same time that it transfers the data to the processor unit. If the memory request by the processor unit is to write into memory, the cache memory controller gains access to the bus and initiates a data storage operation in main memory. At the same time, the cache memory controller determines if the existing data being overwritten at the addressed location in main memory is present in the cache memory. If so, it updates the data in the cache memory at the same time as it writes the data into main memory. <IMAGE>
Patent GB-2012450-A (GB)
Title: Interferometer Systems
IPC: G01B9/02
Filed: 1979-01-11
Abstract: In a Michelson interferometer system arranged to give four output interferograms (1 to 4), two at each orthogonal direction of polarisation, the reflection and transmission coefficients of the interferometer beam splitter (10) at the two polarisation directions are chosen so that the ratios of the a.c. component to the d.c. component are equal in three of the interferograms. Thus d.c. components, can be removed by photoelectrically deriving difference signals from the three interferograms. The difference signals are suitable for use with an automatic, reversible, fringe counting system, e.g. for making distance or velocity measurements. <IMAGE>
Patent GB-2020389-A (GB)
Title: Rocker arm for a valve gear of an internal combustion engine
IPC: F01L1/20
Filed: 1979-05-02
Abstract: The rocker arm (1) has two limbs (6) which extend in a direction generally parallel to the plane of oscillation of the arm and which are connected together in two regions at two different locations (10, 8) to provide a ball socket bearing (11) therebetween. The arm can be made from a piece of sheet metal strip (2) bent into a U shape, deformation of the limbs (6) in one of the regions allowing a weld (10) to be made between the limbs. A slide contact block (3) and a bolt (4) each connects the two limbs together towards their free end. A valve play compensating element (5) is mounted on the bolt (4). Parallel surfaces (12, 17) engage an extension (14) of a ball pin (13) and the valve stem end (18) respectively to guide the rocker arm (1) along its oscillating path and prevent lateral tilting and twisting movement around the ball pin (13). <IMAGE>
Patent GB-2024874-A (GB)
Title: After treatment of cellulosic fibres dyed with reactive dyes
IPC: D06P3/66
Filed: 1979-07-02
Abstract: A process for dyeing or printing with a fibre-reactive dyestuff a substrate consisting of or comprising cellulosic fibres, which process comprises treating the dyed or printed substrate, at a temperature from 20 DEG  to 105 DEG  C. with an aqueous solution of a polymer containing carboxylic acid groups at least partially neutralized in salt form.
Patent GB-2033979-A (GB)
Title: Coolant Pump for Liquid-cooled Internal Combustion Engines
IPC: F01P5/10
Filed: 1979-10-23
Abstract: The shaft (5) of a coolant pump impeller passes through a bearing (4) and a seal (8) and any coolant which seeps past the seal (8) enters an annular chamber (9) from where it drains into a reservoir chamber (11) having an overflow. Leaked coolant is retained in the reservoir chamber until it evaporates and any residues collect in the reservoir chamber so as to remain invisible from the exterior of the pump, thereby obviating unwarranted replacement of the pump such as occurs with prior pumps when residues appear at the drain opening thereof. <IMAGE>
Patent GB-2035703-A (GB)
Title: Rack for accommodating circuit boards
IPC: H05K7/14
Filed: 1979-11-07
Abstract: A rack for accommodating circuit boards comprises metal end plates 10 joined by extruded metal tie bars 11, 12 carrying pairs of guide rails having slots engageable by the edges of the circuit boards. The end plates have rows of holes 17 at equal pitch into which screws 13 may be passed to locate the tie bars at different fore and aft positions in the rack. To prevent the tie bars from rocking locating mouldings 25, 33 are provided between the ends of the tie bars and the end plates. <IMAGE>
Patent GB-2046948-A (GB)
Title: Device for controlling rotation of motor for sound equipment
IPC: H02P23/00
Filed: 1980-01-08
Abstract: A device for controlling the rotational speed of a motor 17 (e.g. for a record turntable or a tape recorder) comprises an instruction input device 10, 10a for supplying rotation instruction signals to a microcomputer 11 which supplies rotation control signals to means 13 for controlling rotation of the motor 17. The microcomputer 11 comprises a program logic device which receives the instruction signals from the input device 10, 10a, and a timer controlled by the logic device. The logic device repeatedly starts the timer and, upon completion of each counting operation of the timer, produces a pulse with a variable delay relative to the completion of counting. The pulses are compared with tachometer pulses from the motor in a phase locked loop 13 controlling the motor. <IMAGE>
Patent GB-2045702-A (GB)
Title: Auxiliary wheel for aiding traction
IPC: B60B15/26
Filed: 1980-04-01
Abstract: A traction aid wheel for attachment to an already existing wheel of a vehicle has a wheel body 3 comprising bolt holes 5, and a tread comprising elongate ridges 1 and valleys which extend in an inclined manner across the width of the tread. The ridges 1 are so arranged that always at least a portion of at least one of the ridges 2 is in contact with a surface on which the vehicle is travelling when the traction aid wheel is in use. The valley bottoms slope downwardly so that the depths of the valleys increase from one valley end at the body 3 to the other valley end at an exit aperture 4. <IMAGE>