baber/WOPTO huggingface dataset:
Patent GB-1122574-A (GB)
Title: Process for preparation of conjugated diolefins
IPC: C07C1/247
Filed: 1965-11-10
Abstract: A method of preparing a conjugated diolefin by the catalytic decomposition of a monoor di-alkyl meta-dioxane is characterized by use of a catalyst which has been prepared by subjecting H3PO4 on SiO2 to a heat treatment above 700 DEG  C. for at least 5 hours, followed by aqueous extraction and drying below 1100 DEG  C. Dioxane derivatives specified are 4-methyl-4-ethyl-, 4:41-dimethyl-, 4:5-dimethyl- and 4:4 - diethylmetadioxanes.  Examples describe the preparation of isoprene ex 4:4-dimethyl metadioxane.  Reference has been directed by the Comptroller to Specification 1,027,687.ALSO:Solid phosphoric acid catalysts either alone or supported on an inert heat resistant material are subjected to a temperature above 700 DEG C. for at least 5 hours, extracted with water and dried below 1100 DEG C.  Reference has been directed by the Comptroller to Specification 1,027,687.
Patent GB-1477110-A (GB)
Title: Control systems for liquid heaters
IPC: F24H9/20
Filed: 1975-10-20
Abstract: 1477110 Water heaters: burner control systems A TROTTER and U TROTTER 20 Nov 1975 [22 Nov 1974] 47803/75 Addition to 1413732 Headings F4A and F4T [Also in Divisions F2 and G3] A liquid heater having a magnetic member 7 responsive to variation in the flow of liquid includes a burner 15 having a control system including a valve 14 comprising first and second chambers 16, 17 separated by a diaphragm 18, the first chamber 16 having a gas inlet 20 and an outlet 21 connected to the burner 15, the diaphragm 18 being movable between a position in which it closes the outlet 21 and one in which the outlet is open, a duct 35, 36, 48, 49 connecting the first and second chambers, and a magnetically actuable valve responsive to the magnetic member 7 and a manually adjustable heat responsive valve 38a, both arranged to control the exhaust of gas from the second chamber through the duct. Gas enters the valve 14 through a valve 22, which is biased closed by a spring but is held open by a solenoid 23 if a thermoelectric device 24 senses a flame at pilot burner 25, and fills both chambers 16, 17 through duct 35; as the pressures are equal the diaphragm is biased by a spring to close the outlet 21. When no water flows in heater coil 4 the magnetic member will be at its lowest position so that its N pole is adjacent that of magnetic piston 11, urging resilient disc 12 against seat 13 to prevent flow of gas in the ducts 48, 49; when water flows the magnetic member 7 rises, attracting the piston 11 to open the valve, so that the pressure in chamber 17 falls and outlet 21 is opened and gas flows through manual on-off valve 26 to the burner 15. The path of gas from the chamber 17 to the duct 48 includes a perforated pin 37 whose outlet may be closed by a conical member 40 moved in response to the expansion of fluid in bulb 43 located in the heater coil 4; the pin 37 is threaded so that its position relative to the member 40 can be adjusted by a knob 38. This thermostatically-operated valve is bypassed by a duct 44 having a regulating screw 45 to maintain a minimum flame. For initial ignition knob 29 is depressed to open the valve 22 to allow gas to flow through duct 27 to the pilot burner 25; the knob 29 can only be depressed when the main gas valve 26 is in the closed position. The exhaust of gas from the chamber 17 is through an ignition retarding valve having a perforated disc 33 to ensure gradual opening of the outlet 21.
Patent GB-984813-A (GB)
Title: Aircraft landing lamp
IPC: B64D47/04
Filed: 1962-12-18
Abstract: 984,813. Aircraft wing lamps. M. C. HARLEY. Dec. 12, 1963 [Dec. 18, 1962], No. 47817/62. Heading F4R. A landing lamp for mounting in the wing of an aircraft has a reflector which is circular when viewed in an axial direction, part of the circle being cut away along a chord. The cutaway portion may be closed by a plate of good thermal conductivity and preferably reflecting, e.g. an aluminium plate. In the form shown, the reflector 1 is parabolic and is away along a horizontal chord at about half the radius from the centre of the circle, the cutaway portion being closed by an aluminium plate 2 having ventilation apertures. A socket 4 for a lamp is mounted on the reflector. A diffusing screen 5, e.g. as in Specification 372,285 may be mounted on the front of the reflector adjacent the plate 2. The reflector is supported from a bracket 7 inside the aircraft wing by studs 8 carrying spring-urged nuts 9, projections 6 on the edge of the reflector being clamped between the nuts 9 and nuts 11. The aircraft wing has a transparent or translucent window 13 through which the light from the lamp is visible.
Patent GB-1281539-A (GB)
Title: Semiconductor processing reactors
Inventor: BEAN KENNETH ELWOOD
IPC: C23C16/458
Filed: 1969-10-01
Abstract: 1281539 Silica and silicon nitride TEXAS INSTRUMENTS Inc 1 Oct 1969 [31 Dec 1968] 48190/69 Heading C1A [Also in Division C7]  A reactor 10 which may be used to deposit SiO 2  or Si 3 N 4  on substrates comprises, as shown in Figs. 1 and 2, a dome 12 and a base 16 in which a drive mechanism rotates causing supports, e.g. susceptors 32-37, to rotate about their own axis whilst they simultaneously move around the chamber about a common axis passing through the chamber, each support being arranged to carry in recessed portions therein the semi-conductor substrates, e.g. discs 56 58, being treated, which due to the rotation of the support about its own axis, roll around the rim 54 of the recess, any required reactant gas being admitted via the axis 24 (Fig. 2) or the diffusers 60, and being withdrawn through an exhaust outlet (not shown), the substrates being heated by any appropriate heating means. Preferably, the heating means is an R.F. coil 62 (Fig. 2) arranged behind the susceptors. In depositing silicon oxide a silane may be introduced through the shaft 24 and oxygen through the diffusers 60 whilst the semi-conductor substrates are maintained at a temp. in the range 200-500 C. A silicon nitride layer may be deposited at temps. from 550 to 1200 C. using silane and ammonia. Silicon may also be deposited.
Patent GB-1065288-A (GB)
Title: A screw pump in particular for viscous media
IPC: F04D7/04
Filed: 1964-11-27
Abstract: 1,065,288. Bearings. FLUX GERATE G.m.b.H. Nov. 27, 1964 [Nov. 28, 1963], No. 48240/64. Heading F2A. [Also in Division F1] A thrust bearing in a screw pump (see Division F1) comprises a ball 8 pressed or soldered in a recess in the head 11 of a screw 10 securing the pump rotor 3 to its drive-shaft 2, and a cup 9, as of sintered carbon, provided with a drain hole 21.
Patent GB-1299630-A (GB)
Title: Compost activators
Inventor: BRADFIELD PETER GILBERT ELIJAH
IPC: C05F17/00
Filed: 1970-10-10
Abstract: 1299630 Compost activator RUMENCO Ltd 8 Oct 1971 [10 Oct 1970] 48247/70 Heading C1B A compost activator, in the form of freeflowing discrete particles, comprises a mixture of relatively dry, fibrous vegetable matter with molasses and at least one nitrogenous substance which can be used by mushrooms as a source of nitrogen. The fibrous vegetable matter may be dried peat moss, dried spent hops, bagasse, and/or glume meal, and the nitrogenous substance may be urea, an ammonium salt, blood meal, casein and/or dried yeast. Residue from the fermentation / distillation of sugar - cane molasses also may be present. The activator finds application in activating composts derived from stable bedding, deep litter (chicken) and/or wheat straw, e.g. such as used in mushroom cultivation.
Patent GB-1384433-A (GB)
Title: Moulded article
IPC: B29C41/18
Filed: 1972-10-24
Abstract: 1384433 Powder slush moulding IMPERIAL CHEMICAL INDUSTRIES Ltd 2 Oct 1973 [24 Oct 1972] 48932/72 Heading B5A A method of producing a moulded article comprises applying a dry powder blend of a thermoplastic material on to a hot moulding surface so that a layer of the dry powder adheres to the moulding surface, removing excess powder from the adhered layer, allowing only a proportion of the thickness of the adhered layer to fuse into a solid mass so that a proportion of the thickness of the adhered layer remote from the moulding surface does not fuse into a solid mass but retains a porous, sintered structure, cooling the moulding surface to prevent further fusion of the adhered layer and removing the moulded article so formed from the moulding surface. A p.v.c. vehicle arm rest or seat cover may be produced by the method and the cover may then be filled with a foamable polyurethane composition having a viscosity such that the composition can penetrate the porous part of the cover to improve adhesion between the cover and the foam. The foam may be cured at a temperature which causes local fusion of the particles of the porous part of the cover. The mould for producing the cover may be cooled by air or by water sprays or bath when sufficient of the adhered layer has fused into a solid mass. The temperature of the moulding surface may lie in the range 190‹-250‹ C.
Patent GB-1280869-A (GB)
Title: Improvements in or relating to methods of and apparatus for mixing
Inventor: SCHOPPE FRITZ
IPC: B01F7/16
Filed: 1969-10-07
Abstract: 1280869 Mixing apparatus F SCHOPPE 7 Oct 1969 [7 Oct 1968] 49248/69 Heading B1C In a method and apparatus for batch mixing of a liquid with a liquid powder or gas, a closed container 1 of circular cross-section has at one end an impeller 6 or other means for inducing circulation up the walls and down the centre of the container; the latter is preferably conical in which case the impeller is at the narrower end. There are radial vanes 7 at the other end to prevent rotation of the body of liquid. The impeller blades may be curved (see Fig. 8, not shown) and may have a shroud 13 and there may be apertures (12, Fig. 5 not shown) in the supporting shell 4. The impeller 6 and vanes 7 may conform to the shape of the container (see also Figs. 1-3 and 5, not shown); and the impeller may be driven from either end of the container. There is a feed pipe 8, gas vent 9, and discharge pipe 10 or 28; the functions of the several pipes are interchangeable and the apparatus when filled may be operated in any position. In the embodiment shown in Fig. 6 the inclined surfaces 24, 25 engage when the impeller is not operating, to form a seal which enables access to be obtained to the gland 26.
Patent GB-1513940-A (GB)
Title: Rotating mechanical shaft seals
IPC: F16J15/34
Filed: 1975-12-02
Abstract: 1513940 Seals GITS BROS MFG CO 2 Dec 1975 [24 April 1975] 49515/75 Heading F2B A seal for a rotary shaft 11 comprises a shaft seal assembly 10 attached to the shaft 11, and a stationary seal assembly 50 attached to a housing 14, each having a first portion 23, 51 respectively and a second portion 20, 18, respectively urged apart by spring means 39, 58 respectively, having a secondary seal, e.g. 0-rings 30, 52, between them and interconnected by means 37 which restrict relative rotation, in use the two second portions 20, 18 co-operating to form a primary rubbing collar type seal. Four embodiments are described, using combinations of helical springs and waved washers to provide the spring load. Rotary coupling between the first and second portions is provided by pin and slot connections in both seal assemblies in Fig. 2 (not shown) or on one only, Figs. 3 and 4 (not shown) and on Fig. 1, the other coupling being frictional only. The embodiment of Fig. 4 (not shown) has in the shaft seal assembly an intermediate portion 105 located between the first and second portions 100, 109, respectively and free to float radially on the set screw 103 clamping the first portion 100 on to the shaft 11.
Patent GB-1393799-A (GB)
Title: Circuit breaker
IPC: H01H71/52
Filed: 1972-10-27
Abstract: 1393799 Automatic circuit-breakers TOKYO SHIBAURA ELECTRIC CO Ltd 27 Oct 1972 [1 Dec 1971] 49592/72 Heading H1N A circuit-breaker has a toggle linkage 26, 33 interconnecting a pivoted operating handle 25 and a pivoted contact-carrying arm 18, a releasable member 34 having one end forming a pivot of the linkage and its other end guided in elongated slots 221 and latched by a pivoted latch 35, and overload responsive means to move the latch to release the member 34 so that the circuit-breaker contacts 30, 15 open. In the closed position shown, the contacts are maintained closed against spring bias by the member 34 and by the toggle formed by the handle 25 and upper link 26 being overcentre. On overload a coil (not shown) attracts an armature 40 which abuts and moves the latch 35 to release the member 34. The toggle linkage collapses to open the contacts and a spring (not shown) restores the handle 25 to the "off" position so that the latch 35, member 34 and the links are automatically reset ready for a subsequent manual reclosing operation.
Patent GB-1129706-A (GB)
Title: Improvements in and relating to shaft couplings
Inventor: LINDQUIST HENNING
IPC: F16D1/097
Filed: 1966-11-08
Abstract: 1,129,706. Shaft couplings. BURMEISTER & WAIN'S MASKIN-OG SKIBSBYGGERI A.S. 8 Nov., 1966 [11 May, 1966], No.50049/66. Heading F2U. [Also in Divisions B3, B4 and B7] A quickly connectible and disconnectible shaft coupling, particularly for Diesel engine/ propeller connection in large tankers (see Division B7) or bulk carriers, comprises driving and driven members having respective, opposed, conical, self-locking, friction coupling surfaces coaxially located on said members and hydraulic pistons and cylinders connected to said members to effect relative axial displacement thereof. The hydraulic control may be manual or automatic by means not described. Mating conical friction coupling surfaces 16, of approx. 1:25 taper, are formed respectively on the end of an axially fixed engine-connected shaft 2 and in the bore of a liner 18 secured in a sleeve 4 bolted to a flange 3 of a propellerconnected shaft 1. As shown, four of twelve tight fitting bolts connecting the flange 3 and sleeve 4, viz. bolts 5, each have an axial extension 6 terminating in a piston 7 which is slidable in a cylinder 13. A ring 10 axially engageable with collars 14, 15 of the shaft 2 comprises diametral halves held together by a whole ring 11. The latter is clamped by the cylinders 13 which are secured to the ring 10 by screwed sleeves 12. When, for example, pressure is supplied to the left hand end of each cylinder 13, the ring 10 is leftwardly displaced to engage the collar 14; and following this engagement, further pressure, due to the axial fixation of the shaft 2 effects rightward connecting movement of the sleeve 4. The opposite ends of the cylinders 13 are arranged to be pressurized respectively through annular main ducts 9, 8 fast with the ring 10 and individual ducts 19, 20. A further annular duct 17, fast with the sleeve 4 is arranged to supply the conical friction coupling surfaces 16 through ducts 24 in the sleeve 4 and liner 18. Each of the ducts 8, 9, 17 comprises a plurality, say six, of peripherally spaced snap (non-return) valves 25 by which a stationary high pressure pump may be connected to the ducts. In operation, for coupling disconnection first the coupling surfaces and, to avoid unintentional disconnection, the left hand cylinder ends are pressurized. Following this, the right hand cylinder ends are pressurized, and by suitable control of the opposing pressures the disconnection is effected at a suitable rate. For connection, both cylinder ends are pressurized with the left hand end pressure at the higher value to effect slight preliminary connection. Only then are the coupling surfaces pressurized, and final connection is effected by control of the opposed pressures.
Patent GB-1536003-A (GB)
Title: Method of producing semiconductor device
IPC: H01L21/76
Filed: 1976-12-02
Abstract: 1536003 Semi-conductor devices TOKYO SHIBAURA ELECTRIC CO Ltd 2 Dec 1976 [3 Dec 1975] 50319/76 Heading H1K A semi-conductor device is made by forming doped regions 2-7 in a semi-conductor substrate 1, removing all masking films used during the doping to completely expose the surface of the substrate, forming a first SiO 2  insulating film 11 on the surface, forming a silicon nitride film 12a on selected parts of the first insulating film 11, and forming a second SiO 2  insulating film 13 on the exposed parts of the first insulating film and in the substrate under the exposed parts using the silicon nitride film 12a as the mask. The device may include transistors, diodes, thyristors and FETs having high breakdown voltages.
Patent GB-1077388-A (GB)
Title: Modulator system and method
IPC: G05B19/35
Filed: 1965-11-26
Abstract: 1,077,388. Programmed control of machine tools. BUNKER-RAMO CORPORATION. Nov.26, 1965 [Nov.27, 1964], No.50421/65. Heading G3N. [Also in Division G4] The invention provides a circuit for use in machine tool control wherein control signals from a tape or manual input serve to produce a pulse train in which the number of pulses per unit of time is a function of the direction and extent of the required movement. Additional inputs to the circuit are a signal indicating the required direction of movement, and two clock pulses trains, 180 out of phase. The circuit selects one or other of these pulse trains and includes means for the addition or deletion of a pulse when switching from one train to the other. The resultant pulses feed a dividing chain to generate a square wave which is compared in phase with a feedback signal from the machine tool output, the comparator controlling the positioning of the tool.
Patent GB-1139803-A (GB)
Title: Improvements in or relating to decorating shoe uppers
Inventor: STEADMAN JOHN GORMAN
IPC: A43D8/32
Filed: 1964-12-11
Abstract: 1,139,803. Finishing edges of and seaming non-metallic sheet material. DUO ENTERPRISES Ltd., and BRITISH UNITED SHOE MACHINERY CO. Ltd. 11 March, 1966 [11 Dec., 1964], No. 50443/64. Heading B5K. [Also in Division A3] A decorative edge is provided on a shoe upper component by providing an upper component 2 with an aperture 6, securing a portion 8 of thermoplastic material to a surface of the component 2 to extend over. the aperture 6, and applying heat and pressure by a high-frequency press to the portion 8 and the component 2 to cause the thermoplastic material to flow at least to fill the aperture 6. The component 2 of leather or leather substitute is provided with a row of equally spaced holes 6 punched along a line parallel to the edge. The edge portion 4 is then skived both along the flesh and the grain side. The flesh side of the component 2 is coated with neoprene and a strip 8 of polyvinyl chloride is stuck to the component 2 to extend over the holes 6 and up to about 1/16 inch from an end face 10 of the portion 4. The strip 8 is then coated with neoprene. The portion 4 and the strip 8 are folded over on to themselves along a line extending through the holes 6 with a reinforcing tape (12), Fig. 2 (not shown), laid in between the folded portions of the strip (8), adhesive being applied to bond the strip (8) and the tape (12) together. The portion 4 is subjected to heat and pressure in a high-frequency press to soften the strip 8 so that it fills the holes 6 and provides pips (14), Figs. 3 and 4 (both not shown). The strip 8 is preferably of a different colour to that of the component 2. Varying decorative effects may be obtained by providing apertures of various shapes in the component 2. If desired the apertures may be formed other than along the edge of the component. A portion of polyvinyl chloride is secured to the upper to extend over the apertures and is operated on by a high-frequency press.
Patent GB-1594500-A (GB)
Title: Process and device for the flotation of mineral raw materials
IPC: B03D1/14
Filed: 1977-12-06
Abstract: The present invention provides a method of treating mineral raw materials by a foam flotation process wherein the raw materials are admitted into flotation cells with flotation reagents, and an intermittent pulsating supply of air is fed to said flotation cells.
Patent GB-1164618-A (GB)
Title: Tetracosapeptides and Process for their Manufacture
IPC: C07K19/00
Filed: 1966-11-14
Abstract: 1,164,618. Tetracosapeptides. CIBA Ltd. 14 Nov., 1966 [12 Nov., 1965], No. 50894/66. Addition to 1,119,353. Heading C2C. H - D - Ser - Tyr - Ser - Met - GluOH - [or Glu(NH 2 )] - His - Phe - Arg - Try - Gly - Lys - Pro - Val - Gly - Lys - Lys - Lys - Lys - Pro - Val - Lys - Val - Tyr - ProOH (D - Ser<SP>1</SP> - Lys<SP>17</SP> <SP>18</SP>- #<SP>1-24</SP>-corticotrophin), its derivatives (including esters, amides and N-protected compounds) acid addition salts and complexes with inorganic and organic compounds which prolong the activity, are prepared by methods known in the peptide art, especially the decapeptide H-DSer - Tyr - Ser - Met - Glu(OH) [or Glu(NH 2 )] - His - Phe - Arg - Try - GlyOH is condensed with the tetradecapeptide H-Lys-Pro-Val-Gly- Lys - Lys - Lys - Lys - Pro - Val - Lys - Val - Tyr-ProOH (any free NH 2  and COOH groups in the peptide fragments being protected) and the protecting groups (especially BOC) being split off. Pharmaceutical compositions comprise the compounds of the invention and a suitable carrier or diluent. Preferred compositions contain the complexes of the peptides of the invention with a compound which prolongs the activity of the peptide. The compositions may be in forms suitable for enteral and parenteral administration.
Patent GB-1288257-A (GB)
IPC: F24H1/50
Filed: 1969-10-16
Abstract: 1288257 Boilers H VIESSMANN 16 Oct 1969 [24 Oct 1968] 50915/69 Heading F4A A boiler which comprises a housing 1 with flow and return connections 11, 12, and a heat source 3 in a primary water space 8, is provided with a duct and a pump to transfer water from the upper part of the housing 1 to the bottom part thereof to heat secondary domestic water in a heat exchanger 7. As shown, the boiler has a duct 9 and a pump 10 and is heated by a combustion chamber 3 fired by an oil or gas burner 5 and provided with heating gas flues 4. The heat source may be an electric heater or the boiler may be heated by electrical resistor elements. The heat exchanger 7 may be a storage tank as shown and/or a continuous flow heat exchanger and has a thermostat to control the pump 10 so as to regulate the temperature of the secondary water.
Patent GB-1310400-A (GB)
Title: Phenylalanine derivatives and their preparation
Filed: 1970-10-28
Abstract: 1310400 Phenylalanine derivatives E GY T GYOGYSZERVEGYESZETI GYAR 28 Oct 1970 [28 Oct 1969] 51250/70 Heading C2C Optically active 3,4-dihydroxyphenylalanine is prepared by reacting a racemic compound of the Formula (II): (R = methyl, acetyl) with D- or L-threo-2-amino- 1 - (p - nitrophenyl) - 1,3 - propanediol, separating the salts formed, liberating the desired isomer from its salt and deacetylating and demethylating it. The isomer (II) which is not required may be liberated from its salt and converted to the racemate.
Patent GB-1455692-A (GB)
Title: Composition and method for filtering liquids
IPC: B01J47/02
Filed: 1973-11-05
Abstract: 1455692 Filtering ECODYNE CORP 5 Nov 1973 [29 an 1973] 51319/73 Heading B1D Suspended solids and possibly dissolved impurities are filtered from a liquid using a filter aid layer comprising a mixture of anion exchange resin of 60-400 mesh (U.S.) with an additive comprising expanded perlite, diatomaceous earth, cellulose fibres or asbestos or mixtures thereof, the additive forming up to 98% of the layer. Cation exchange resin of 60-400 mesh may also be included. Anion resins may be of the phenol-formaldehyde, epoxy, acrylic or divinylbenzene-styrene types, in hydroxide or chloride form. The method is applicable to filtering power plant condensate, sugar-solutions and wine. In examples various additives (particle sizes exemplified) are mixed with anion resin in aqueous suspension and thereby applied to nylon wound filter elements, various proportions of resin being tried to ascertain the optimum mixture which retains filtered solids in its outer half rather than just on the surface. Reference has been directed by the comptroller to Specification. 991128.