baber/WOPTO huggingface dataset:
Patent GB-1057040-A (GB)
Title: Manufacture of shaped articles by casting
IPC: B22C9/04
Filed: 1963-10-04
Abstract: 1,057,040. Patterns. CELANESE CORPORATION OF AMERICA. Oct. 4, 1963 [Oct. 4, 1962], No. 39163/63. Heading B3F. [Also in Division B5] A process for the production of a mould by the lost wax technique wherein a pattern of the article to be cast is covered with a refractory material from which, after setting, the pattern is removed by the application of heat, characterized in that the pattern is made from a solid thermoplastic oxymethylene polymer. Before use, the polymer may be subjected to thermal stabilization treatment and chemical stabilizers, particularly phenolic antioxidants and a monomeric or polymeric compound containing tri-  valent nitrogen may be incorporated into the polymer. The refractory material from which the mould is formed may be an aqueous slurry of refractory material, e.g. silica glass, silica flour, plaster or a refractory clay such as kaolin or victoria ball clay and a wetting agent such as an anionic surface active agent. The mould composition may also include colloidal silica as a binder, an organic bonding agent such as gum arabic or methyl cellulose, a ceramic slip conditioner, e.g. tartaric acid, an organic solvent such as methylethyl ketone and a de-airing agent such as 2-methyl hexanol.
Patent GB-1197473-A (GB)
Title: Improvements in or relating to fuel injection systems
Inventor: FUESSNER PAUL
IPC: F02D41/18
Filed: 1967-08-25
Abstract: 1,197,473. Carburetter systems. P. FUESSNER. Aug. 25, 1967 [Aug. 27, 1966], No.39201/67. Heading F1B. Excess fuel supplied by a pump 10 to a nozzle 8 returns through a pipe 14, the amount of fuel injected being controlled by controlling the flow through pipe 14 in accordance with the intake airflow as measured by a device responsive to the dynamic pressure in the intake pipe 1. A pilot device 16 transmits the dynamic and static pressures through pipes 18, 20 to diaphragm chambers 21, 22, at opposite ends of a valve 24 controlling the return flow pipe 14. The suction downstream of the throttle valve 2 is transmitted through pipe 29 to chamber 27 whereby during over-running conditions diaphragm 26 causes valve 24 to move to wide open position, thereby cutting off the supply through nozzle 8. The piston 24 may be replaced by a plate valve. In Fig. 3 the pilot device 16' includes an armature 37, actuated by diaphragm 36 responsive to the dynamic and static pressures, which as it changes position produces a variable current in coil 38 and operates an electrical control device 40 to supply a corresponding control voltage through wire 41 to an electromagnet controlling the return flow fuel valve. Further control functions for cold start and power enrichment may be fed into control 40 through wires 42. The fuel injection nozzle 8, Fig. 4, has a supply passage 49 opening through tangential inlets 54 into a turbulence chamber 53 connected to the injection orifice 56 and, through outlets 55, to the return flow passage 50 leading to the pipe 14, Fig. 1. In a modification the orifice 56 is controlled by an electromagnetically operated valve.
Patent GB-1012347-A (GB)
Title: Apparatus for suspending powdered substances in a gaseous current
IPC: B01F33/40
Filed: 1962-10-17
Abstract: 1,012,347. Powder distributers. COMPAGNIE DE SAINT-GOBAIN. Oct. 17, 1962 [Oct. 17, 1961], No. 38298/62. Heading B2F. Apparatus for forming a suspension of a powdered substance 2 in a gas comprises a vessel 1 containing the powder 2, a plunger tube 11 extending downwards from the top of the vessel and terminating in an end 14 of generally conical shape provided with slots 15 through which a gaseous current passes at the level 3 of the powder for bringing it into suspension, and pads 17 on supporting rods 16 attached to the tube 11 so that the end 14 is maintained at the level 3 of the powder. A gaseous fluid under pressure is supplied through a conduit 18, a duct 19, and a conduit 20 to the interior of a tube 10 supporting the tube 11. The gaseous supply is regulated by a needle valve 21. The fluidized powder leaves the vessel through a pipe 22. A needle valve 24 controls the quantity of powder carried by a given volume of gas. The apparatus may be associated with blow-pipes and may spray powders which can be fused by heat for metallization.
Patent GB-1073814-A (GB)
Title: Preparation of diallyl phthalate prepolymers
IPC: C08F18/08
Filed: 1965-09-15
Abstract: A diallyl phthalate prepolymer having a commercially acceptable cure time is obtained by (a) polymerizing a diallyl phthalate monomer to produce a mixture of monomer and prepolymer substantially free of residual polymerization catalyst and (b) continuously feeding the monomer/prepolymer mixture into a zone of high vacuum in the form of a thin film while heating to a temperature sufficient to permit rapid flow of molten prepolymer after being freed from monomer, withdrawing the monomer overhead and molten prepolymer as bottoms in a period of a few minutes. Step (a) may be carried out by (i) using a diallyl phthalate which will polymerize in the absence of catalyst at 200 DEG C. under nitrogen at such a rate that the refractive index <FORM:1073814/C3/1> will increase by at least 0.000012 per minute, and either thermally polymerizing without catalyst, or using catalyst in such a small quantity that it is substantially destroyed before the end of polymerization, or (ii) continuously introducing a catalyst with a low half life at the polymerization temperature during the early part of the polymerization and finishing the polymerization thermally.  The apparatus employed in step (b) may comprise a tapered drum to which the monomer/prepolymer mixture is fed and it is spread on the inner surface of the drum by means of an inner drum which carries adjustable blades to govern the film thickness. After exposure to heat and high vacuum, the monomer vapour passes through a separation chamber and cyclone separator where it is collected overhead, while the liquid prepolymer collects at the bottom of the separator chamber. In the examples the phthalates prepolymerized are diallyl orthophthalate and diallyl isophthalate.
Patent GB-1071718-A (GB)
Title: Improvements in and relating to synthetic plastics containers and holders therefor
IPC: A47K5/12
Filed: 1964-09-28
Abstract: 1,071,718. Soap &c. holders. R. DINGLE. Sept. 27, 1965 [Sept. 28, 1964], No. 39481/64. Headings A4B and A4V. [Also in Division B8] A container, for soap &c. in liquid or powder form, has a screwed-on closure cap with four flat, downwardly and inwardly sloping sides, and is suspended from a wall-bracket bent up from sheet metal to form two spaced parallel lugs inclined similarly to the sides of the cap.
Patent GB-1433237-A (GB)
Title: Process for coating vulcanised articles of saturated or unsatu rated polyolefin rubber
IPC: C08J7/00
Filed: 1973-08-22
Abstract: 1433237 Coating rubber CHEMISCHE WERKE HULS AG 22 Aug 1973 [23 Aug 1972] 39756/73 Heading B2E A process for coating a vulcanised article of saturated or unsaturated polyolefin rubber wherein the article is first pretreated with an optionally aqueous solution of a strong oxidising agent or by U.V. irradiation, then coated with a composition comprising (a) a saturated oligoester containing hydroxyl groups and having a molecular weight of 250 to 3500, the alcohol component of which comprising 20 to 100 mol % of 1, 4-bis-(hydroxymethyl)cyclohexane and being at least difunctional, and (b) a bifunctional isocyanate and/or a polyfunctional isocyanate, the ratio of 1-NCO groups in the isocyanate to -OH groups in the oligoester being 0.75:1 to 1:1. Preferred rubbers are polyolefin rubbers containing 30 to 40 wt. % ethylene and 70 to 10 wt. % propylene and/or butene-1, optionally also including of multi-unsaturated olefin such as trans-1, 4-hexadiene, dicyclopentadiene, methylene norbornene, ethylidene-norbornene, or propenyl-norbornene. Suitable strong oxidising agents are chromic, peroxyacetic, nitric, acids, nitric acid/hydrochloric acid mixture, chromosulphuric acid, KMnO 4 , chlorine or hypochlorites. The coating may be applied by casting or one- or two-component spraying. The oligoester may comprise 0 to 80 mol. % of other diols e.,g .ethylene glycol, 1, 2-propanediol, 1, 3-propanediol, 1, 3- or 1, 4-butanediol, hexanediols or 2-ethyl-1, 3-hexanediol, and up to 40 mol. % of branched polyols such as glycerine, trimethylolpropane or pentaerythritol. Aliphatic dicarboxylic acid mixed with aromatic and/or cycloaliphatic dicarboxylic acids may be used in the oligoester. Examples of aromatic or cycloaliphatic acids are phthalic, isophthalic, hexahydroterephthalic, tetrahydrophthalic or hexahydrophthalic acids, the cycloaliphatic acids being in the trans- or cis-form or a mixture. Examples of aliphatic acids are succinic, glutaric, adipic, suberic, sebacic, decanedicarboxylic acids as well as unsaturated acids such as maleic, fumaric, itaconic and citraconic. The free acids, esters or anhydrides may be used. Typical isocyanate are "Desmodure" (RTH) isophorone-diisocyanate, and trimethylhexanemethylenediisocyanate. The degree of gloss of the coating may be altered with fillers such as colloidally dispersed silica, talc or waxes.
Patent GB-1420404-A (GB)
Title: Rotary haarows
IPC: A01B73/02
Filed: 1973-01-16
Abstract: 1420404 Rotary harrows C VAN DER LELY NV 16 Jan 1973 [24 Jan 1972] 39909/ 74 Divided out of 1420401 Heading A1B The subject matter of this Specification is described in the parent Specification 1420401, but the claims are concerned with the pivoting of the groups of soil-working members about axes parallel to the direction of travel. Specifications 1420403 and 1420405 are also referred to.
Patent GB-1479976-A (GB)
Title: Conversion of colour television signals to and/or from interlaced form
IPC: H04N11/20
Filed: 1974-09-13
Abstract: 1479976 Colour television BRITISH BROADCASTING CORP 8 Sept 1975 [13 Sept 1974] 40114/74 Heading H4F Controllable phase shift means are connected to the colour signal inputs and/or the subcarrier signal input of a PAL or NTSC colour encoder 20, 40 arranged so that its output is connected to a sequential-to-interlace, interlace-to-sequential or interlace-to-different-interlace converter 32, the phase shift means being adapted to vary the phase of the modulated colour subcarrier produced by the encoder for each line of received colour signals by an integral number of quarter cycles in dependence upon the line number. The resulting output of the converter comprises an encoded output signal with the colour subcarrier in PAL or NTSC format, i.e. with  or ¢ line offset. Reference is made to a number of ways of accommodating the subcarrier single cycle per frame offset in a PAL signal. In Fig. 1 the controllable phase shift means comprises switches SA, SB and inverters 14, 16, the PAL switch 25 being included in the code 20 or by a switch inverting the V input. In Fig. 1 instead of inverting the phases of U and V the phase of the subcarrier feed may be changed. The converter 32 may comprise a sequential-tointerlace scan converter of the type described in Specification 1,464,533. In Fig. 2 the controllable phase shift means comprises switches SC, SD, SE, inverters 42, 46 and 90 degree phase shifter 44. Colour bursts may be added to the signal. Instead of an analogue PAL encoder as shown, reference is made to PAL signals in pulse form, i.e. digital or analogue sample, and to Specifications 1,415,519 and 1,428,206.
Patent GB-875793-A (GB)
Title: Polymerization of olefins
IPC: C08F2/00
Filed: 1958-12-12
Abstract: Ethylene styrene or an alkyl-substituted, styrene is polymerized using as catalyst an organometallic compound of titanium or zirconium, or an organo-metallic compound and a reactive titanium or zirconium compound, and a secondary or tertiary aliphatic, aromatic or cycloaliphatic amine. Alpha-methyl styrene is the specified alkyl-substituted styrene. Specified amines are diphenylamine, tri-n-butyl amine, and pyridine, while methyl magnesium bromide and zirconium tetrachloride or titanium tetrachloride are employed in the examples.  An inert liquid, e.g. benzene, heptane or mineral oil, may also be present.  Reference has been directed by the Comptroller to Specification 809,717.
Patent GB-1044715-A (GB)
Title: New epoxy resin compositions
Inventor: CAMERON GRANT MCLAY
IPC: C08G59/66
Filed: 1964-10-02
Abstract: Flexible epoxy resin compositions are obtained by using an ester, containing 2 or more SH groups, of a mercaptocarboxylic acid with an organic compound containing at least two alcoholic OH groups separated from each other by a linear chain of at least seven consecutive C or C and O atoms as "flexibilizer."  The ester, which may have the formula R(O.CO.R1SH)n in which R is a hydrocarbon group which may contain O atoms, R1 is an alkylene group and n is an integer of at least 2, is used in combination with an epoxy resin and curing agent. R may be the residue obtained by removing at least two OH groups from a polyalkylene oxide especially one derived from polypropylene triol having an average M.W. 300-2500.  Specific examples of esters are bis-(thioglycollates) or bis-(3-mercaptopropionates) of polyethylene gylcol or polypropylene glycol or tris-(thioglycollates) or tris-(3-mercaptopropionates of polypropylene triol; the polyols having M.W. 300-2500.
Patent GB-853696-A (GB)
Title: Improvements in and relating to bottle carriers for automatic bottle washers and like apparatus
Inventor: DUNGFELDER CHRIS CHRISTIAN
IPC: B08B9/42
Filed: 1958-12-15
Abstract: 853,696. Bottle carriers for bottle washing machines. BARRY-WEHMILLER MACHINERY CO. Dec. 15, 1958, No. 40374/58. Class 138(1). A bottle carrier for use in a bottle washing machine comprises a bank of interconnected bottle receiving pockets 25, Fig. 2, of rubber or, like yieldable resilient material mounted within a rigid metal frame 22 adapted to be secured at each end to a conveyer chain 10. The side walls of the frame are received in grooves 30, Fig. 4, in the outer side surfaces of the bank of pockets 25. One side of each pocket 25 has an outwardly extending lip 27 over which a bottle is slid into the pocket after the latter has been tilted appropriately. In a further embodiment a continuous lip is provided along one side of the bank of pockets, and ribs are provided in each pocket for preventing bottle wobble. In another construction the pockets are of circular section in plan view.
Patent GB-1158317-A (GB)
Title: Improvements in or relating to Refractorty Nozzles for Teeming Molten Metal.
Inventor: ELDERFIELD RAYMOND NEVILLE
IPC: B22D41/50
Filed: 1965-09-23
Abstract: 1,158,317. Tundish and ladle nozzles. STEEL CO. OF WALES Ltd., and THOMAS MARSHALL & CO. (LOXLEY) Ltd. 27 Oct., 1966 [23 Sept., 1965], No. 40572/65. Heading F4B. A nozzle for use in tundishes or ladles comprises a highly refractory wear-resistant tubular insert 11 cemented to a composite shell, said shell comprising a fireclay top 10 providing a seating for a stopper and a bottom portion of insulating refractory shell 13 having a heat conductivity value K less than that of the fireclay. The value of K is defined in terms of BTU/sq. ft./hr./‹F./inch.
Patent GB-1155306-A (GB)
Title: Process for De-Scaling Metal Articles.
Inventor: SCHMIDSRAUTER ALBERT PAUL
IPC: C11D7/00
Filed: 1966-09-14
Abstract: 1,155,306. Descaling metals. A.P. SCHMIDSRAUTER. Sept. 14, 1966, No.41054/66. Heading C7E. Metal articles are descaled by spraying a liquid descaling agent heated to 40-80 C. on to the encrusted surfaces of the articles under a pressure of 8 atmospheres, e.g. placed in a housing 7 containing jet equipment 6 fed continuously or intermittently via pressure interrupter 5 by a feed pump 3 from a reservoir 1 containing a heating device 2, and then collecting the used agent e.g. in a sump 9 below an open work floor, separating the solids from it e.g. in a removable receiver 10 and a fine filter 11, and feeding it back for reuse e.g. into the reservoir 1 until the agent is exhausted. The process is applicable to removing concrete residues from building equipment and hardness deposits from cooling, heating and water-treating plant. The agent may comprise a 25 or 30% phosphoric acid solution with 3-5% of a wetting agent, 3% of an oxidizing additive, such as per-oxy-diphosphoric acid or its potassium salt or persulphuric acid or ammonium persulphate, and 0À005% Congo red as indicator; 2% of zinc nitrate or manganese sulphate may be optionally present.
Patent GB-1486588-A (GB)
Title: Hydraulic control unit
IPC: B62D5/097
Filed: 1974-09-20
Abstract: 1486588 Rotary positive-displacement fluid machines TRW Inc 20 Sept 1974 [19 Oct 1973] 41076/74 Heading F1F [Also in Division B7] A control unit 10 e.g. for a power steering system, comprises a gerotor mechanism 35 operated by a shaft 12, e.g. connected to a steering wheel 13, to meter the output flow from a pump 23 to a steering motor 14, a valve 102 distributing liquid to and from the gerotor mechanism, and a valve 41 directing the flow from the gerotor  mechanism to one side or the other of motor 14 according to the direction of rotation of shaft 12. Valve 41 may be a rotary sleeve valve, as shown, or a rotary plate valve, Figs. 14 to 16 (not shown). Rotation of shaft 12 rotates outer, internally-lobed gerotor member 36 which causes limited rotational movement and then orbital movement of inner, externally-lobed gerotor member 37 coupled by members 40, 45 to movable valve-member 43 of valve 41. The extent of rotational movement of valve-member 43 depends on the torque applied to shaft 12 thereby controlling the flow to the steering motor and providing "feel". Abutments (80,81), Fig. 4 (not shown), limit the movement of valve-member 43 and a torsion bar 121 acts to bias the valve-member 43 into its neutral position, in which the output of pump 23 is returned to reservoir 27. Distributing valve-member 102 is connected for rotation with gerotor member 36 by screws 40a. If pump 23 fails, steering can still be effected by the pumping action of the gerotor mechanism. In Fig. 13 (not shown), the input shaft is coupled to the gerotor mechanism by a pin (151), and the distributing valve (160) is a plate type. In (Figs. 14 to 16) both the distributing valve (206) and the steering motor control valve (204) are the plate type. In Fig. 17 (not shown), the input shaft is coupled to the inner member of the gerotor mechanism, and the outer member of the mechanism is limited in its rotation, the steering motor control valve and the distributing valve being on opposite sides of the gerotor mechanism. In Figs. 18 and 19 (not shown), the input shaft is connected to the outer gerotor member via a toothed sleeve (401), and the outer member performs a rotating and orbiting movement.
Patent GB-1045846-A (GB)
Title: Improvements in or relating to electromechanical transducers
IPC: H04R1/08
Filed: 1965-09-28
Abstract: 1,045,846. Semi-conductor devices. SIEMENS & HALSKE A.G. Sept. 28, 1965 [Sept. 29, 1964], No. 41103/65. Heading H1K. [Also in Divisions G1 and H4] An overload protection device is provided for a transducer suitable for use in a microphone and which is of the type having a pressure-transmitting stylus bearing on a semiconductor member such as a PN junctioncontaining piezo-resistive body. This body is mounted on an electrode plate which in the non-loaded transducer is held against an adjustable limit stop by a spring opposing pressure applied by the stylus. When the load on the stylus exceeds the rest pressure in the spring the latter yields to reduce the stress on the semi-conductor. The region of contact between the stylus and semi-conductor may be surrounded by a viscous medium to lessen the rebound impact if the stylus should lift momentarily from the semi-conductor. The mass of the semi-conductor and electrodes is made small so that the inertia forces on acceleration are preferably less than 10% of the rest force in the spring.
Patent GB-1083325-A (GB)
Title: Means for repeatedly withdrawing worktables from and reloading them into a machine
Inventor: FARRANT GRAHAM GEORGE
IPC: B23Q7/14
Filed: 1964-10-08
Abstract: 1,083,325. Transferring charges to and from furnaces. A. G. WILD & CO. Ltd. Dec. 14, 1965 [Oct. 8, 1964], No. 41109/64. Heading F4B. Pallets or trucks A-E are loaded with material or articles to be treated in a flame-cutting machine or other apparatus, and transferred along a track F to the exit of the machine. At the end of the track F the pallets are unloaded and transferred to an inclined track H down which they travel to the entry of track F. The trucks may be transferred by pivoted arms.
Patent GB-1194869-A (GB)
Title: An X-Ray Diagnostic Apparatus
IPC: H05G1/06
Filed: 1967-09-08
Abstract: 1,194,869. X-ray diagnostic apparatus. SIEMENS A.G. 8 Sept., 1967 [10 Sept., 1966], No. 41222/67. Heading H5R. An X-ray diagnostic apparatus comprises a base 1, a pillar 2 supported by the base and provided with means for its vertical adjustment, an X-ray tube 6 in a protective housing and having an anode situated at the outer end of an anode tube 12 extending out of the housing, the X-ray tube being mounted on the pillar for vertical movement therewith, and a patient's seat 9 secured to the base and having a position in which a patient sitting normally in the seat would be facing the anode tube, said X-ray tube being so mounted on the pillar that the longitudinal axis 24 of the tube is maintained in alignment with the central region of the patient's seat in said position, and means are provided for changing the horizontal distance between the anode tube and the patient's seat. Preferably as shown a substantially horizontal elongate member 7 joins the seat to the base, and a substantially horizontal elongate member 5 joins the X-ray tube to the pillar. The longitudinal axis 24 of the anode tube is preferably perpendicular to the longitudinal axis of the elongate member 5 and this member may be attached to the pillar 1 via a unit 4 so that member 5 may rotate about its longitudinal axis. The X-ray tube may also be attached to the pillar via a horizontal cross member 3 which latter is attached to the pillar so as to be adjustable in a horizontal direction in the direction of arrows 25-whilst maintaining the alignment between the central region of the patient's seat and the longitudinal axis 24. As shown in Fig. 2 a high-voltage transformer 18, associated with X-ray tube 21, may be mounted in member 5. A heating transformer 19 and an auxiliary transformer 20 may be similarly mounted. A magnetic clutch device 23 controls the rotation of member 5 in bearing 4. All movements of the apparatus are released by button 14, the apparatus being counter-' balanced so that it may be comfortably positioned with one hand holding knob 13. The lowvoltage circuit elements of the X-ray tube are preferably placed in a housing 15 which surrounds the bottom part of pillar 2.
Patent GB-1408070-A (GB)
Title: Method of reversing a metal image
IPC: H01L21/027
Filed: 1973-09-03
Abstract: 1408070 Reversal processing to produce metal images PHILIPS GLOEILAMPENFABRIEKEN N V 3 Sept 1973 [6 Sept 1972] 41369/73 Heading G2C Reversed metal images are produced by (i) imagewise exposing a benzene diazosulphide of formula [Add Formula I] on a support, (ii) contacting the exposed material in the presence of moisture with mercurous and optionally silver ions to form a latent image, (iii) optionally physically developing the latent image, (iv) bleaching the latent or visible metal image with an oxidant before or after uniform exposure and (v) repeating steps (ii) and (iii) to produce a reversed metal image. The bleach may be potassium bichromate/sulphuric acid or sodium hydrogen sulphate, potassium ferricyanide/sodium thiosulphate, ceric, sulphate/ nitric acid or ceric sulphate/potassium dichromate/ nitric acid/sulphuric acid. After uniform exposure and bleaching, the material may be treated with an alkaline solution (e.g. pyridine) and optionally with an acid solution.