baber/WOPTO huggingface dataset:
Patent GB-1515311-A (GB)
Title: Treatment of phosphate glass
IPC: C03C3/16
Filed: 1974-09-25
Abstract: 1515311 Strengthening phosphate glass IMPERIAL CHEMICAL INDUSTRIES Ltd 20 Aug 1975 [25 Sept 1974 4 Aug 1975] 41686/74 and 32486/75 Heading CIM A process for strengthening articles of phosphate glass comprising at least 50 mole per cent P 2 O 5  comprises contacting the glass with a solution of one or more amino-carboxylic acids and/or one or more hydroxy-carboxylic acids (or salts of such acids). The acid is preferably polycarboxylic, and is preferably used in aqueous solution at a concentration of 0-05 to 1 mole per litre of solution, and at a pH of 5-10 (adjusted with NaOH if necessary). The treatment may be at 0-100‹C for 5 minutes to 10 hours. Acids whose use is exemplified are ethylene diamine tetra-acetic acid and its disodium salt, nitrilotriacetic acid, citric acid, tartaric acid, glycine, and p-phenylene diamine-N, N, N', N'- tetra-acetic acid. The glass treated may be a lens or thin sheet, and may comprise, in mole per cent, P 2 O 5  50-72, B 2 O 3  1À2-3À5, PbO 0-30, one or more transition metal oxides 0-5, and one or more oxides selected from alkaline earth metal oxides, alkali metal oxides and zinc oxide 2-40. The treated glass is preferably washed with water and/or acetone.
Patent GB-1046408-A (GB)
Title: A circuit interupter electrode
IPC: H01H33/66
Filed: 1963-10-24
Abstract: 1,046,408. Electric coils. GENERAL ELECTRIC CO. Oct. 24, 1963 [Nov. 14, 1962], No. 42046/63. Heading H1P. [Also in Division H2] A coil is formed in an electrode of a vacuum switch by means of a plurality of deep transverse slots 50 cut into the electrode from several directions. The magnetic field set up by the flow of current in the helical path so created assists in the extinction of ares between the vacuum switch contacts. Inserts of low conductivity materiel such as stainless steel may be inserted into the slots. The electrodes may be of round or square cross-section.
Patent GB-1215571-A (GB)
Title: Improvements in or relating to the manufacture of yarns and staple fibre
Inventor: RUDDELL JAMES NELSON
IPC: D02G1/18
Filed: 1966-09-21
Abstract: 1,215,571. Stapling fibres and spinning bulky yarns. LINEN INDUSTRY RESEARCH ASSOCIATION, 20 Dec., 1967 [21 Sept., 1966], No. 42054/66. Headings D1F and D1W. A method of making staple fibre with bulk potential comprises the steps of producing an assembly of filaments having variable shrinkage characteristics, stapling the filaments so that there are present potentially high shrinkage fibres which have a materially greater staple length, e.g. 1 inch greater, than the remaining fibres many of which will have substantially less shrinkability, and passing the staple fibres through a drafting system having a reach which will stretch break the fibres of high potential shrinkage but not the remaining fibres. The fibres are then spun into a yam and subjected to a uniform shrinkage process to cause variable shrinkage of the yam fibres. The assembly of filaments may be a single tow or a blend of two tows.
Patent GB-1117614-A (GB)
Title: N-acyloxy-n-acylamino-acetylating agents
IPC: C07D243/24
Filed: 1965-08-11
Abstract: N - Acyloxy - N - acylaminoacetyl halides are prepared by reacting the parent acid with a halogenating agent, and N-acyloxy-N-acylaminoacetic acid mixed anhydrides are prepared by reacting the corresponding N-acyloxy-N-acylaminoacetic acid with an acylating agent or reacting hydroxyaminoacetic acid with excess of an acylating agent under conditions strenuous enough to triacylate the acid.  The preparation of N-acetyl-N-acetoxyamino-acetic acid is described.
Patent GB-1478982-A (GB)
Title: Rotary valves
IPC: F01L7/10
Filed: 1973-09-07
Abstract: 1478982 Rotary valves CROSS Mfg CO (1938) Ltd 9 Sept 1974 [7 Sept 1973] 42105/73 Heading F1B [Also in Division F2]  In order to reduce the oil film thickness on the surface of a rotary spherical valve for an I.C. engine to between 40 to 50 Á ins., sealing grooves 15 are provided in the vicinity of the ports 13 in the surface of a seal insert 18. Lubricant may be supplied via a passage 19 and drained via a passage 20. A strip seal 16 may be provided in the grooves which may be concentric or in the form of a continuous spiral. Alternatively the grooves may be provided in the surface of the valve-member 10. The groove(s) may vary in depth.
Patent GB-1007589-A (GB)
Title: Salts of ª-aminobenzyl penicillins
IPC: C07D499/00
Filed: 1963-10-28
Abstract: The invention relates to a -aminobenzyl penicillin aryl sulphonates of formula <FORM:1007589/C2/1> wherein R1, R2 and R3 are the same or different and each represents hydrogen, nitro, di-(lower alkylamino, (lower) alkanoylamino, (lower) alkanoyloxy, (lower alkyl, (lower) alkoxy, sulphamyl, chloro, iodo, bromo,fluoro, trifluoromethyl, (lower) alkylthio, (lower) alkylsulphonyl, carbo-(lower) alkoxy, benzyl, phenethyl, cycloheptyl, cyclohexyl or cyclopentyl; R4 is <FORM:1007589/C2/2> or <FORM:1007589/C2/3> in which R5, R6, R7 and R8 are the same or different and each represents hydrogen, C1-C12 alkyl, (lower) alkoxy, hydroxy, (lower) alkylthio, nitro, (lower) alkanoylamino, (lower) alkanoyloxy, sulphamyl, chloro, iodo, bromo, fluoro, trifluoromethyl, (lower) alkylsulphonyl, carbo (lower) alkoxy, benzyl, phenethyl, cycloheptyl, cyclohexyl and cyclopentyl; or a salt of the said penicillin.  The lower aliphatic groups mentioned are straight or branched chain groups which include those having 1-6 carbon atoms.  The a -amino-benzyl penicillin aryl sulphonate may also be in the form of a salt.  The sulphonates are prepared by reacting an aqueous solution of an a -aminobenzyl penicillin, or a salt thereof, with a water-soluble aryl sulphonic acid, or salt thereof, having the formula (R4SO3)#xM where where R4 is as hereinbefore defined, M is hydrogen, an alkali or alkaline earth metal ammonium or substituted ammonium and X is a number equal to the valence of M, and adjusting the pH of the reaction mixture to 1.5 to 3.5, and preferably 1.5 to 2.0.  The a -aminobenzyl penicillin is recovered from the aryl sulphonate by suspending the aryl sulphonate in water and adjusting the pH to pH 6 to 8 and then pH 4.5 to 4.6.  a -aminobenzyl penicillins may be recovered from an impure aqueous solution thereof, by adding to the solution a water-immiscible organic solvent, treating with a water-soluble aryl sulphonic acid or salt thereof having the formula (R4SO3)#xM, as defined above, and adjusting the reaction mixture to pH 1.5 to 3.5 Specified aryl sulphonic acids are naphthalene sulphonic acid, p-nonylbenzene sulphonic acid, p-toluene sulphonic acid and p-cymene sulphonic acid.  Typical sulphonates are a -aminobenzyl penicillin beta naphthalene sulphonate and a -amino-m-chlorobenzyl penicillin beta naphthalene sulphonate.  Anhydrous sulphonates are produced by treatment with acetone.  The a -aminopenicillin aryl sulphonates are acid stable and may be used orally and parenterally in pharmaceutical and veterinary compositions, e.g. for the treatment of mastitis and gram positive or gram negative bacterial diseases.  They may be used as nutritional supplements in animal feeds.  Specification 873,049 is referred to.
Patent GB-1242852-A (GB)
Title: Welding austenitic steel
Inventor: JORDAN DAVID EDMUND
IPC: B23K35/30
Filed: 1967-09-18
Abstract: 1,242,852. Welding alloys. INTERNATIONAL NICKEL Ltd. Dec. 6, 1968 [Sept. 18, 1967], No.42464/67. Heading C7A. [Also in Division B3] In the welding of cast austenitic steels, for heatresistant articles and parts, e.g. centrifugally cast steels for reformer furnace tubes in the petrochemical industry by T.I.G., e.g. argon-shielded tungsten arc or manual or automatic gas or flux shielded metal-arc process, filler materials are non-matching and contain Niobium (Nb). Base steels contain (weight per cent) Ni 15-40 Cr 15-28 C 0À1-0À75 Si 2À0 max Mn 2À0 max Fe Balance, except incidentals (e. g. Mo) and impurities Fillers contain (weight per cent) Cr 23-25 Ni 23-27 C 0À1-0À5 Si 0À4-2À0 Mn 0À3-1À5 Nb 0À5-3À0 Fe Balance, except for impurities (e.g. P and S)
Patent GB-1433163-A (GB)
Title: Liferafts
IPC: B63B7/08
Filed: 1973-09-11
Abstract: 1433163 Inflatable liferafts RFD-GQ Ltd 11 Sept 1974 [11 Sept 1973] 42597/73 Heading B7A An inflatable liferaft has a peripheral main inflatable tube 1 and, attached to the external surface of the main tube, a sheet 3 of flexible material to form an auxiliary inflatable compartment 4. The material of sheet 3 is more easily extensible than the material of the tube 1, and may be extended by inflation from a position where it lies against the surface of the tube 1, to the inflated position shown. Preferably the compartment 4 is inflated to a lower pressure than the tube 1, for example by mouth. This reduces the required size of gas bottle for inflating the tube 1, and reduces the stowed size of the liferaft. The compartment 4 may extend either wholly or partly around the periphery of the boat.
Patent GB-1064065-A (GB)
Title: Improvements in the separation of oil from water
IPC: B01D17/04
Filed: 1963-10-29
Abstract: Viscous oil present in water introduced at (8), Fig. 1 (not shown), coalesces on the downstream side of each of a number of screens (18) to (22) and may be discharged to recovery from a pipe (36).  Each screen consists of one or more layers of plain Dutch weave wire mesh. Solids collecting thereon may be removed by backwashing.
Patent GB-1099140-A (GB)
Title: Dual engine controls
IPC: F02D25/00
Filed: 1966-09-26
Abstract: 1,099,140. Controlling I. C. engines. CATERPILLAR TRACTOR CO. Sept. 26, 1966 [Oct. 19, 1965], No. 42785/66. Headings F1B and F1Q. Two engines are controlled from either one of two remotely-positioned valves 18, 18' which admit pressure fluid to cylinders 14, 14' through a shuttle valve 23. Actuation of either valve 18, 18' causes ball 24 to close the duct from the other valve. Spring-loaded pistons 14, 14' act through levers 12, 12' to adjust the setting of the engine speed governors 11, 11'. In a modification hydraulic accumulators 28, 28' may be arranged upstream of the valves 18, 18'.
Patent GB-1061446-A (GB)
Title: Inclined flowing mercury cathode electrolysis cell, and method of electrolysis usingsaid cell
IPC: C25B1/36
Filed: 1963-10-31
Abstract: A flowing mercury cathode cell of the diaphragmless type has the cathode base and anode surfaces parallel to each other and inclined at between 2 degrees and 85 degrees to the horizontal, a gas outlet adjacent the upper corner of the cell, the roof of the cell also being inclined to the horizontal and spaced sufficiently above the anode surfaces so that when the cell is substantially filled with electrolyte, e.g. brine, there is ample space for electrolyte agitation above and around the anode surfaces due to gas bubbles released from the anode surfaces during electrolysis rising with both a vertical and a horizontal component of movement towards the gas outlet so as to maintain substantial uniformity of electrolyte composition and temperature and avoid gas blanketing of the anode surfaces.  As described the cell is closely similar to those disclosed in Specifications 1,061,443 and 1,061,445.  The anode surfaces are constructed to provide transverse paths for the gas bubbles e.g. with grooves extending somewhat diagonally relative to the cell base plan and may be of graphite in the under surface of which channels are cut or of corrugated perforated or expanded metal form platinum coated titanium sheets.  A cell flushing plug may be provided at the upper end of the cell.
Patent GB-1322601-A (GB)
Title: Motor and fan construction
IPC: H02K7/08
Filed: 1970-09-09
Abstract: 1322601 Mounting rotors of dynamo-electric machines ROTRON Inc 9 Sept 1970 [11 Sept 1969] 43195/70 Heading H2A The rotor 10 of an electric motor is mounted in a radial bearing assembly comprising a sleeve 22 fixed to the stator and a pin 20 fixed to the rotor and rotatably received in the sleeve, one end 26 of the pin forming a thrust face engaging a thrust bearing 28. The pin and sleeve may be made of ceramic material. The end 26 of the pins may be convex, as shown, and the bearing 28, carried in a sleeve 29 sealed in fluid tight manner in the sleeve 22, is then flat and may be a jewel such as sapphire or may be made of plastics or synthetic resin material. Alternatively the face 26 may be flat, Fig. 3 (not shown), or concave, Fig. 4 (not shown), the bearing 28 then being ball shaped. The fan motor shown is an external rotor hysteresis motor, the rotor carrying fins 41. Axial movement of the rotor away from the bearing 28 is limited by a resilient member 38 glued to a plug 34 adjustably mounted in the motor housing. A thrust bearing similar to the bearing 28 may be carried by the member 38.
Patent GB-1141000-A (GB)
Title: Continuous tuning tunable circuits for use in a combination uhf-vhf tv tuner
IPC: H03J5/28
Filed: 1967-09-25
Abstract: 1,141,000. Inductors. HAZELTINE CORP. 25 Sept., 1967 [5 Oct., 1966], No. 43412/67. Heading H1T. A continuous-tuning arrangement for use in a television tuner for V.H.F. (12) and U.H.F. (70) channels comprises a plurality of variable V.H.F. inductances 23 (Fig. 5) connected between fixed contact members 22 arranged over an arc of a circle and a spiral shaped U.H.F. inductance 21 acting as a distributed constant transmission line (Figs. 1 and 2) above a conductive earthed plate 27, and arranged to cover, with the contacts 22, less than 360 degrees of the circular path of movable contact members (29) (Fig. 10, not shown) movable by tuning means 28 to connect plate 27 first to a varying point on inductance plate 21 and then to successive contact members 22. The channel contact head 2 (Fig. 2) of a contact 22 and the point A of inductance plate 21 are connected to earth. The inductances 23 have ferrite cores 24 and may be printed. Earthed screening plates 25a, 25b (Fig. 3) and 25c (Fig. 5), which may be interconnected, may be provided to reduce coupling between U.H.F. and V.H.F. elements. The V.H.F. coils 23 and the U.H.F. inductance 21 may be on opposite sides of substrate 20. A conductive back plate 30 acts as a shield and an earthed conductive housing may be provided. A plurality of tuning arrangements may be combined (Figs. 7-9, not shown).
Patent GB-1523463-A (GB)
Title: Process for the preparation of hydrocarbons
IPC: C01B3/36
Filed: 1975-10-23
Abstract: 1523463 Hydrocarbon synthesis SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 23 Oct 1975 [25 Oct 1974] 43597/75 Heading C5E In a process for the preparation of normally liquid hydrocarbons, a hydrogen- and carbon monoxide-containing gas is prepared by the partial combustion of a carbonaceous material with oxygen which is at a temperature in the range 200 to 500 C., the partial combustion being carried out in the presence of 5-15% by volume of steam (based on oxygen) at a temperature in the range 900 to 1800 C., a pressure in the range 1 to 200 bar abs. and a residence time in the range 0À1 to 12 seconds, the resulting gas is contacted with steam in a plurality of stages, in which the temperature of the first stage is in the range 250 to 450 C. and the temperature in the last stage is in the range 200 to 400 C. to convert carbon monoxide into carbon dioxide and hydrogen, the resulting gas is cooled at a pressure in the range 1 to 200 bar abs. to a temperature in the range -10 to -80 C. to remove part of the carbon dioxide content thereof as liquid or solid carbon dioxide, the resulting gas of lower carbon dioxide content is reacted with hydrogen in the presence of a catalyst at a temperature in the range 150 to 380 C. and a pressure in the range 2 to 100 atm. g. too form hydrocarbons, the resulting reaction product is cooled to form a liquid product comprising liquid hydrocarbons and water, and said liquid hydrocarbons are separated and dried.
Patent GB-1426774-A (GB)
Title: Automatic device for trimming vessels
IPC: G05D1/08
Filed: 1973-09-18
Abstract: 1426774 Automatic trimming device A M & I LEVELLERS Ltd 18 Sept 1973 43653/73 Heading B7M An automatic trimming device corrects trim of a moving vessel having perpendicular X and Y axes of roll and pitch respectively, the X and Y axes being horizontal when the vessel is in the design attitude, and a mutually perpendicular Z axis. Sensing means of the device responsive to a continued departure from the design attitude includes an unbalanced disc 23 mounted for free rotation about a pivot axis 24 coincident with or parallel to the Z axis. The disc has an opening 35 and is mounted in chamber 20 which contains damping fluid. Forward 31, aft 32 photo-electric cells are in a plane normal to the Y axis, port 34, Fig. 2, not shown, starbaord 33 photo-electric cells are in a plane normal to the X axis and the two planes intersect in the pivot axis. Each photo-electric cell has an electrical output responsive to light rays 35À1 impinging on it when the opening 35 is in line with that particular cell and light source 22. Amplifiers A31-A34 and relays R31-R34, Fig. 4 (not shown), interconnect the sensing means and trim tabs 14.1 and 14.2 to correct the attitude of the vessel. Movement of the tabs each in different directions corrects list to port or list to starbard.
Patent GB-1145114-A (GB)
Title: Apparatus for the preparation of embedded microscope specimens
IPC: G01N1/36
Filed: 1967-09-26
Abstract: 1,145,114. Apparatus for the preparation of microscope specimens. F. GRASENICK, W. GEYMAYER and A. ALDRIAN. Sept. 26, 1967, No. 43860/67. Heading G2J. Apparatus for the preparation of embedded microscope specimens comprises an evacuable chamber 1, a container 2 for the specimen 5 to be embedded, and a supply tube 3, slidable through lid 1', having a cover 2" by which container 2 may be sealed from chamber 1 after evacuation, a polymerizable carrier then being introduced from reservoir 4 into container 2 for impregnation of the specimen. By this means, the interior of chamber 1 and the vacuum pump are not contaminated by the carrier. Specimen 5 rests on a cooling or heating apparatus 6, and a thermometer 7 is provided. Tube 3 may contain a further coaxial tube through which carrier vapour is supplied to container 2 before the liquid is introduced. Pretreatment of the specimen by excited gases such as oxygen is also possible by this means, the gas being excited by high-frequency discharge from an electrode surrounding container 2. This treatment increases wetting of the specimen by the carrier. Container 2 is again evacuated before admitting the carrier. Container 2 may be transparent to ultraviolet radiation by which polymerization of the carrier is achieved.
Patent GB-1436503-A (GB)
Title: Carrier rack made of transparent fused silica
IPC: C30B31/14
Filed: 1974-10-10
Abstract: 1436503 Carrier rack for semi-conductor processirig HERAEUS QUARZSCHMELZE GmbH 10 Oct 1974 [19 Oct 1973] 43987/74 Heading H1K A transparent fused silica rack for supporting a plurality of semi-conductor wafers 3 during processing such as diffusion or epitaxial growth comprises at least three, and preferably four, rods 1 having wafer support slots 2. The rods 1 may be held at their ends by trapezoidal tube sections 4 either fused directly to the rods 1 or fused at 8 to a member 7 located in slots 9 in the rods 1. At one end a pair of the rods 1 are preferably joined together to form a handle 6
Patent GB-1059940-A (GB)
Title: Improvements relating to mechanical road sweepers
IPC: E01H1/08
Filed: 1964-10-29
Abstract: 1,059,940. Suction cleaners. DEIGHTON'S PATENT FLUE & TUBE CO. Ltd., and L. H. RIDDELL. Oct. 29, 1965 [Oct. 29, 1964], No. 44081/64. Heading E1G.  In a mechanical road sweeper having a reciprocating pusher plate to express water from the dirt, a water pump having a suction greater than the main suction of the machine extracts water from behind the plate and returns it to the nozzle or to the ground.
Patent GB-1378975-A (GB)
Title: Isocyanate compositions
IPC: C08L75/04
Filed: 1972-09-26
Abstract: 1378975 Diphenylmethane diisocyanate composition and polyurethanes therefrom IMPERIAL CHEMICAL INDUSTRIES Ltd 7 Sept 1973 [26 Sept 1972] 44404/72 Heading C3R  A diphenylmethane diisocyanate composition which comprises diphenylmethane diisocyanate in which from 10 to 35% of the isocyanate groups have been reacted with a mixture of alkylene glycols containing at least three constituent glycols each having at least three carbon atoms may be used in the preparation of polyurethanes, particularly cellular polyurethanes. The diphenylmethane diisocyanate is preferably diphenylmethane-4,4<SP>1</SP>-diisocyanate containing not more than 10% of isomers thereof Most preferably the three constituent glycols of the mixture are present in such proportions that no one glycol constitutes more than 50 or less than 25 molar per cent of the total glycols. Suitable glycols are diethylene glycol, triethylene glycol, tetraethylene glycol, propylene glycols, neopentyl glycol, 1,3-butane diol and 1,2-butane diol.
Patent GB-1464029-A (GB)
Title: Toy figures
IPC: A63H13/04
Filed: 1974-10-14
Abstract: 1464029 Peristaltic fluid-machines GENERAL MILLS FUN GROUP INC 14 Oct 1974 [15 Oct 1973] 44454/74 Heading F1U [Also in Division A6] A toy figure, e.g. a doll, having an ingestion system for receiving and disposing of material and liquid introduced into its mouth comprises a head having a mouth, a body having a discharge opening 52, a passage, e.g. an elongate tube 50, connecting the mouth and the opening, and a means 60 within the figure for creating a peristaltic action in a part of the passage in order to transfer material from the mouth to the opening. The electricallypowered peristaltic pump 60 is detachably secured within the skull 40 and comprises a circular casing 62 in which are a gear train 85 e.g. of hard plastics and levers 116, 118 and to which is secured an electric motor 110 powered by batteries 230. On rotating the motor a pin 94 that is integrally formed on a gear 86 causes the lever 116 to rock about a pivot 128. This in turn periodically engages the lever 118 via a projection 139 causing a surface 135 to squeeze the pipe 50 so providing the pumping action.
Patent GB-1517028-A (GB)
Title: Trench shoring panel
IPC: E02D5/04
Filed: 1975-10-29
Abstract: 1517028 Trench shoring J KRINGS 29 Oct 1975 [2 Jan 1975] 44514/75 Heading E1E A shoring panel for trenching comprises first and second plates 1, spacers 2 maintaining the plates 1 in spaced parallel relation, and reinforcing tubes 4 extending vertically and passing transversely through the spacers 2, at least one of the plates 1 being folded to form a plurality of laterally extending webs which act as spacers 2, said webs being secured seams welded to an inner face of the other plate 1. The webs have notches or holes to receive the reinforcement tubes 4, and the cavities defined by the plates and the webs may be filled with a plastics material such as foam rubber or polyurethane which may be reinforced.