baber/WOPTO huggingface dataset:
Patent GB-1425343-A (GB)
Title: Phthalic acid derivatives
IPC: C11D3/00
Filed: 1972-02-14
Abstract: 1425343 Phthalic acid derivatives UNILEVER Ltd 12 Feb 1973 [14 Feb 1972] 26598/75 Divided out of 1425342 Heading C2C The invention comprises a phthalic acid derivative of formula wherein R is an alkyl or alkenyl group containing from 10 to 20 carbon atoms, and n is 0 or 1, a hydroxyl group may be present in the benzene ring or the group R; or an alkali metal, ammonium or substituted ammonium salt or the anhydride thereof. These compounds may be prepared by the oxidation of an alkyl oxylene in the presence of a bromide catalyst, or by the reaction of a C 10-20  acyl chloride with a hydroxy phthalic acid.
Patent GB-754687-A (GB)
Title: New carbamic acid esters and their production
IPC: C07D295/088
Filed: 1954-09-14
Abstract: The invention comprises carbamic acid esters of the formula <FORM:0754687/IV(a)/1> wherein Ar is phenyl or alkyl substituted phenyl, R1 is a hydrogen atom or alkyl group, R2 is an alkylene group containing at most 4 carbon atoms and Am is a dialkylamino group or the radical of a saturated heterocyclic amine attached to R2 at a ring nitrogen atom, and their salts with inorganic and organic acids; and their preparation by reacting an amine <FORM:0754687/IV(a)/2> with a halogeno carbonic acid halogenoalkyl ester <FORM:0754687/IV(a)/3> (wherein X and X1 are halogen atoms) in the presence of a tertiary amine and reacting the thus obtained carbamic acid ester with an amine AmH at elevated temperature.  The conversion to salts can be carried out by dissolving the carbamic acid esters in an organic solvent such as alcohol, ether or acetone and then treating them with an etheric, alcoholic or acetonic solution of the desired acid.  Examples describe the preparation of compounds of the above general formula in which Ar is phenyl, o-tolyl, 3 : 5-xylyl or mesityl, R1 is hydrogen, methyl or ethyl, R2 is ethylene or propylene and Am is diethylamino, piperidino, pyrrolidino, morpholino or a -pipecolino, the tertiary amine reagent in each case being triethylamine.  The products are useful as local anaesthetics.
Patent GB-632432-A (GB)
Title: Improvements in or relating to flushing cisterns
IPC: E03D1/10
Filed: 1946-09-05
Abstract: 632,432. Siphon-discharge water-waste preventers. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Sept. 5, 1946, Nos. 26673 and 26674. Convention dates, Nov. 14, 1945 and Jan. 26, 1946. [A Specification was laid open to inspection under Sect. 91 of the Acts, March 6, 1947.] [Class 26] In a flushing cistern comprising a siphon and a float 4 for regulating the water level, and in which the float is depressed by a control member 11 to cause the water level to rise and initiate the siphonic discharge, the siphon has an aperture in its upper part 27 which is closed in the actuated position of the control member by means such as a cone 13. On pulling down the member 11 the float 4 raises the water level whilst the cone 13 closes the siphon aperture, so initiating a discharge, which discharge ceases on releasing the control member with consequent rise of the cone 13 and opening of the siphon aperture, so regulating the discharge. The float 4 may comprise part of the siphon (see Fig 4), in which case the float is preferably bellshaped with a re-entrant wall 25, whilst closure of the aperture is effected against the action of a spring 26. The cistern, float and siphon (as in Fig. 4), or the float alone (Fig. 2), may be moulded from synthetic resin or similar plastic material; whilst the cistern and siphon may be made in one piece. The Specification as open to inspection under Sect. 91 describes also (a) a cistern having a siphon with no aperture, Fig. 1 (Cancelled, not shown); (b) a cistern in which depression of the float discharges by displacement of water over a wall or weir 15, Fig. 5 (Cancelled, not shown). This subject-matter does not appear in the specification as accepted.
Patent GB-1395294-A (GB)
Title: Acoustic surface wave device
IPC: H03H9/145
Filed: 1973-06-05
Abstract: 1395294 Surface wave devices MULLARD Ltd 5 June 1973 26728/73 Heading H3U In an acoustic surface wave device, e.g. a filter or delay line, having interdigital transducers 2, 3 for launching and receiving a wave on the surface of a piezoelectric body 1, two additional electrodes 14, 15 are positioned one on each side of the transducer 2 and each is connected to the opposite side of the transducer. The transducer 2 may launch or receive and the arrangement is stated to reduce capacitive signal breakthrough when the device is operated in a push-pull mode, since the breakthrough signal due to the new capacitances Ca<SP>1</SP>, Cb<SP>1</SP> is of opposite sign to that due to the inherent capacitances of the device. Further improvement may be obtained by use of an earthed strip between the transducers.
Patent GB-1075515-A (GB)
Title: A method of producing wound cores for transformers and chokes
Inventor: SLEZAK MIROSLAV
IPC: H01F41/02
Filed: 1964-06-29
Abstract: 1,075,515. Making transformers and chokes; breaking. TESLA NARODNI PODNIK. June 29, 1964 [July 1, 1963; Jan. 22, 1964; Feb. 29, 1964; April 20, 1964], No. 26791/64. Headings B3A and B3E. [Also in Division H1] In a method of making transformer or choke cores, a magnetic strip is weakened transversely by partial shearing, the strip being then wound-to shape so that there are two weakened places in each turn and the winding is divided by transverse loading along the Y-axis. The disposition of the weakened parts is such that the ends of the laminations are interleaved and the gaps therebetween are staggered. The gaps lie along one or more planes inclined to the longitudinal axis of the winding with reference to a line either perpendicular to the lengthwise axis of the core (Fig. 10, not shown) or to the transverse axis (Fig. 8, not shown).
Patent GB-1007664-A (GB)
Title: Improvements in self-regulating reciprocating piston pumps
IPC: F02M59/36
Filed: 1962-07-12
Abstract: 1,007,664. Fuel injection pumps. SOC. ANONYME POUR L'EXPLOITATION DES PROCEDES CHIMIQUES ET PHYSIQUES. July 12, 1962 [July 25, 1961], No. 26905/62. Heading F1A. A shuttle 9 which controls a by-pass 8 in the injection pump cylinder 4 is subjected to the action of a spring 10 and the pressure from an auxiliary pump cylinder 14 which is also connected through a valve 19 to a spring loaded accumulator 18 having an adjustable throttle 23 in a passage 21 connected to a low pressure outlet. It is stated that the pump may comprise a diaphragm piston on a pair of opposed pistons.
Patent GB-830498-A (GB)
Title: Improvements in or relating to vats for cooking potato crisps or other foods
IPC: A47J37/12
Filed: 1956-09-05
Abstract: 830,498. Frying apparatus. CRUICKSHANK, J. E. Dec. 4, 1957 [Sept. 5, 1956; Jan. 30, 1957], Nos. 27081/56 and 3221/57. Class 28 (1). Potato crisps or the like are cooked in an apparatus comprising main and secondary containers 1, 5 for fat or oil connected by a valve controlled conduit 6 through which the surplus fat or oil returns from the main to the secondary container from which it is with drawn by a pump 8 and fed back through jets 9 to the main container, the latter having an endless gauze belt 2 with its lower run below the surface of the fat or oil and above part of the upper run of a second endless gauze belt 20 which moves along therewith to prevent potato or the like from settling on the bottom of the container. The jets 9 are mounted on a pipe 10 disposed across the vat and adjustably connected to brackets 11. The slices or the like are fed to vat 1 by e.g. a vibrating conveyer. Vat 1 has a cover 12 connected by a conduit 13 to a flue, the sides of the cover resting in troughs 14. The fat or oil is heated by gas burners from which the fumes pass through openings 19 into ducts 15 connected by conduits 16 to a fan 17.
Patent GB-983189-A (GB)
Title: Heating system
IPC: F22B3/06
Filed: 1962-07-14
Abstract: 983,189. Steam boilers. R. HELMER. July 14, 1962, No. 27148/62. Heading F4A. [Also in Division H5] In a heating system, the mechanical work of an internal combustion engine is converted into heat by an electro-magnetic induction coupling comprising a first part rotated by the engine in spaced relationship from a second part thermally associated with a boiler for water to be heated. The system may be used for domestic or industrial heating, or steam generation for processing plants or locomotion. As shown, the phase generating rotor 18 of a hysteresis coupling is driven by an internal combustion engine 15, and may comprise electro- or permanent magnets. A steel hysteresis ring 20, provided with copper radiating fins 21, is fixed in a boiler 2 and seals off the water from rotor 18. Water from the boiler is also circulated through pipes 26, 28, 31 by pump 27, to cool the engine 15. The engine may also be coupled by chains 33 to an electricity generator to furnish emergency power. The hysteresis coupling may be replaced by an eddy current coupling or a magnetic iron particle clutch.
Patent GB-861638-A (GB)
Title: Improvements relating to fuel element cans for nuclear reactors
Inventor: HUGHES DERMOT FREDERICK
IPC: G21C3/08
Filed: 1956-09-05
Abstract: 861,638. Nuclear fuel elements. ENGLISH ELECTRIC CO. Ltd. Dec. 5, 1957 [Sept. 5, 1956], No. 27243/56. Class 39(4). A fuel element can for a gas-cooled reactor has a heat transfer surface provided with a large number of discrete projections. The projections may be formed by machining grooves in the surface of the can and may be square, rectangular or diamond shaped. Alternatively, the projections may be formed by welding to a thin-walled can. They may be arranged in line axially, staggered or in the form of an interrupted multi-start thread in which case the sides of the projections may have different angles in alternate rows. The projections may be twisted or bent. The fuel element may be provided with guide vanes for centring the can in the channel.
Patent GB-388791-A (GB)
Title: Improvements in and relating to advertising devices, showcards and the like
IPC: G09F1/10
Filed: 1931-08-26
Abstract: 388,791. Pneumatic sucker fastenings. BRIGGS, G., 124, Sutherland Avenue, Maida Vale, London. Aug. 26, 1931, No. 27260/32. Divided on 386,029. [Class 44.]. A showcard or the like a is attached to a window by means of a rubber suction cup b carrying, on its inner surface, a disc g bearing advertizing matter. The cup b is held in position by a piece of linen c which is stuck to the back of the cup and round the periphery of a hole a<1> in the card a, which is of sufficient diameter to accommodate the cup when in use. A spring d, formed from a single piece of wire, engages the knob b<1> of the cup and presses the card a firmly against the supporting surface.
Patent GB-1019510-A (GB)
Title: Ceramic capacitor dielectrics
IPC: C04B35/486
Filed: 1963-07-10
Abstract: A dielectric composition consists of BaZrO3 modified by substitution of at least Ba or Zr, a rare earth being substituted for Ba, and Nb and/or Ta for Zr, the total substitution being in the range 0.5 to 10 atom per cent.  Micronsized reactants are ball milled slurried, dried, calcined, product ground, ball milled to micron sized particles, slurried, organic binder added while ball milling, dried, pressed into discs, and finally matured at above 1600 DEG  C. after burning out the binder.
Patent GB-1128111-A (GB)
Title: Foamed polyurethanes
Inventor: REINHART MYRON HAROLD
IPC: C08J9/00
Filed: 1966-06-18
Abstract: 1,128,111. Polyurethane foams. E. R. CARPENTER CO. 18 June, 1966, No. 27319/66. Headings C3C and C3R. Polyurethane foams are prepared by reacting an organic polyisocyanate with a polyether polyol in the presence of a catalyst, 0À5 to 2À00 parts by weight of water per 100 parts by weight of polyol and 50 to 150 parts by weight of finely divided particles of barytes based on 100 parts by weight of polyol, the barytes particles being of a size such that they will fall with the curves A and B of the accompanying drawing in the percentages indicated. The barytes particles suitably have an average particle size of at least 5 microns, preferably 6 to 10 microns. The polyurethane foam may be prepared by the " one-shot " or " two-stage " process. Tertiary amines and organometallic compounds may be used as the catalyst and the reaction may be carried out in the presence of halogen substituted alkanes and silicone oils. The polyether may be linear or branched and the polyisocyanate suitably contains two or three isocyanate groups.
Patent GB-1241222-A (GB)
Title: Piezoelectric oscillator
IPC: H03B5/32
Filed: 1968-07-04
Abstract: 1,241,222. Piezoelectric oscillator; transistor oscillator. CLEVITE CORP. 4 July, 1968 [7 July, 1967; 4 June, 1968], No. 27333/69. Divided out of 1,241,221. Headings H3T and H3U. A piezoelectric oscillator comprises a piezoelectric transformer for transforming a primary voltage to provide an output voltage and a feedback voltage as respective functions of said primary voltage, and amplifier means responsive to said feedback voltage to provide said primary voltage to maintain oscillation of said transformer, said transformer comprising a piezoelectric body, first electrode means applied to said body and connected to receive said primary voltage, and second and third electrode means applied to said body to provide output connections for said output voltage and said feedback voltage respectively. As shown in Fig. 1 a piezoelectric body 11 has its right hand half 12 polarized longitudinally and its left hand half polarized transversely, this left hand half being formed of two adjacent portions 13, 14 which are oppositely polarized. The directions of polarization are indicated by arrows. The input voltage is connected to a primary electrode 16 and a common grounded electrode 15, the stepped up high voltage being obtained at electrodes 15, 17. An output load is represented at 18. For self-oscillation an additions electrode 19 is provided on the body portion 14 and an amplifier 21 connected to the electrode 19 has its output connected to the electrode 16. The body 11 may be caused to vibrate at its second harmonic frequency in which instance it is mounted on soft rubber posts 56, Fig. 6. Alternatively, the body 11 may vibrate at its third harmonic or fundamental frequency (Figs. 3, 4, not shown). Alternative electrode arrangements are shown in the top plan views, Figs. 9, 10, 11 of the body 11, the numerals 17, 20, 22, 23, 24 having the same significance as in Fig. 1, the alternative electrode arrangements being denoted by numerals 92, 93 in Fig. 9 by numerals 94, 95 in Fig. 10 and by numerals 97, 98 in Fig. 11. Transistor oscillator circuit, Fig. 5, comprises an NPN transistor 71 connected to the low voltage terminal 76 of a stepup auto transformer 75. The high voltage terminal 77 of the transformer 75 is connected to input electrode 16 of the piezoelectric transformer 11. For feed-back coupling the secondary electrode 19 is connected through a conductor 88 and choke 89 to the base 73.
Patent GB-714484-A (GB)
Title: Improvements in, or relating to, prefabricated blocks for use in building construction
Inventor: HINCHLIFFE ERNEST DARBY
IPC: E04C2/04
Filed: 1950-11-09
Abstract: 714,484. Building blocks. HILLS (WEST BROMWICH), Ltd. Nov. 9, 1951 [Nov. 9, 1950], No. 27371/50. Class 87 (1) A concrete building block 1 is formed in one face with a recess 3 filled with heat insulating material 4 such as wood wool which is retained by a cover plate 5 of cement and sawdust. The block is formed on its upper face with a rib 12 and on its lower face with a groove 13 of less depth, a deeper portion 14 being provided to receive a packing strip when the blocks are mounted in position. The side faces of the block are formed with shoulders 6, 7 and with screw sockets 9 to receive bolts 10 carrying clamping members 11 for securing the block to metal stanchions as described in Specification 714,483. Specification 714,485 also is re'erred to.
Patent GB-667371-A (GB)
Title: Improved hydrocarbon fuel
Inventor: THORPE THOMAS CHARLES GORDON
IPC: C10L1/20
Filed: 1948-10-21
Abstract: Heavy residual vanadium-containing fuel oils are made suitable for use in gas turbines and diesel engines by addition of a minor proportion, at least sufficient to convert all the vanadium to volatile halides and/or oxyhalides, of an oil-soluble organic halogen compound.  About 0.1 per cent of the halogen compound may be used. Compounds specified are carbon tetrachloride, ethylene dichloride, chloroform, hexachlorethane and chlorobenzenes.
Patent GB-774574-A (GB)
Title: Improvements in or relating to drift support systems for mines
IPC: E21D11/22
Filed: 1952-10-31
Abstract: 774,574. Mine roof supports. HAARMANN, A. Oct. 31, 1952 [July 29, 1952], No. 27416/52. Addition to 774,575. Class 20(2) In the clamp of the parent Specification clamping together the two girders of a mine arch and having pressure members which deform at a predetermined pressure, the pressure members 16 are of tubular form and are threaded on the limbs of the clamp 12 clamping the arch girders 10, 11.
Patent GB-382398-A (GB)
Title: Improvements in drawers or pants for infants and method of manufacturing same
IPC: A41B13/04
Filed: 1931-10-02
Abstract: 382,398. Baby pants. PESTEL, F., 27, Greizer Strasse, Zeulenroda, Thuringia, Germany. Oct. 2, 1931, No. 27429. Convention date, June 29. [Class 141.] Baby pants are made from at least two rectangular pieces of material b, the edges c of which are connected together as indicated in Fig. 4, the corresponding garment being trimmed as indicated at d, Fig. 3. In Fig. 2 is shown a similar method of connecting rectangular pieces to form the garment.
Patent GB-1021383-A (GB)
Title: Method for preparing complexes of heavy metal halides and organic hydroxy amines
IPC: C08G18/87
Filed: 1964-07-02
Abstract: Co-ordination complexes of N,N,N1,N1-tetrakis-(hydroxyalkyl)-alkylene diamines and heavy metal halides having the general formulae <FORM:1021383/C3/1> wherein R1, R2, R3 and R4 represent the same or different hydroxyalkyl radicals, M and M1 represent the same or different heavy metal atoms, X and X1 are the same or different halides, n and n1 represent the valence of M and M1, and x is an integer of from 2 to 6 (see Division C2), are used as accelerators in the vulcanization of sulphur-curable polyurethane polymers having olefinic side chains such as polyalkylene ether or polyalkylene ester polyurethane polymers.  Other materials which may be present in the polymer cure mixture are sulphur, accelerators, activating agents, fillers and pigments.  Examples describe the use of the complexes in the curing of an unsaturated polyurethane polymer which is prepared by reacting adipic acid with a mixture of ethylene glycol and propylene glycol, reacting the product with a mixture of 2, 4- and 2, 6-tolylene diisocyanates and treating the product obtained with glycerol alpha-allyl ether.ALSO:The invention comprises co-ordination complexes of N,N,N1,N1 - tetrakis - (hydroxyalkyl)-alkylene diamines and heavy metal halides having the general formulae <FORM:1021383/C2/1> or <FORM:1021383/C2/2> wherein R1, R2, R3 and R4 represent the same or different hydroxyalkyl radicals, M and M1 represent the same or different heavy metal atoms, X and X1 are the same or different halides, n and n1 represent the valence of M and M1, and x is an integer of from 2 to 6.  The compounds are prepared by reacting one or more heavy metal halides with an N,N,N1,N1-tetrakis - (hydroxyalkyl) - alkylene diamine. Specified heavy metals are Pb, Zn, Co, Mn, Cd, Cr, Sb, Sn and Te.  Examples are given.
Patent GB-781924-A (GB)
Title: Improvements in or relating to containers for attachment to the exterior of aircraft
Inventor: POLLARD HAROLD JOHN
IPC: B64D37/12
Filed: 1954-09-23
Abstract: 781,924. Containers attachable to aircraft. BRISTOL AIRCRAFT, Ltd. Sept. 9, 1955 [Sept. 23, 1954], No. 27507/54. Class 4. [Also in Group XXIX] A container, e.g., for fuel or incendiary material, for attachment to the exterior of an aircraft, comprises two ogival shell portions 10 with at least one tubular shell portion 11 between them, all said portions being one-piece mouldings composed mainly of resin bonded fibrous material and being connected together by overlapping joints, at least two diaphragms 13 within the container, and at least two metallic mounting fittings 46 each secured to one of said diaphragms and extending to the outside of the container. In Fig. 1, each ogival portion is open at its smaller end, to which is attachable a metal cap 18 which may contain a fuse or the like. These portions are reinforced by flanged rings 14, 15 glued in place, and similar rings 12 reinforce the tubular portion 11, which also contains the diaphragms 13. These have reinforcing ribs 45 and stepped flanges 44 adapted to be glued to stepped rings 61 formed on the inside of the portion 11. The portions 10 and 11 are connected by stepped lap joints formed in the portions themselves or in metal plates bonded to the portions, Figs. 2 and 3 (not shown). A sealing ring may be retained between undercut shoulders on adjacent portions. To each diaphragm is secured a fitting comprising an internally threaded socket 50 integral with a palm 47 bolted at 48 to the diaphragm. Each socket 50 aligns with an aperture 51 recessed at 56 in the portion 11. An internally and externally threaded member 55 is screwed into the socket 50. The central one of the three members 55 shown receives a threaded lug 57 to be engaged by a releasable jaw on the aircraft, while the other two members 55 each receive a plug 59 having a locating pin 60. An aperture 63 receives a filling plug 64, and an aperture at the bottom receives a vent plug 67. All metal fittings are earthed, as by leads 76. Further apertures 68 and 69 are for a combined fuel pipe and air vent fitting 70. The shell portions may be provided with fins, moulded separately or integrally.
Patent GB-1153345-A (GB)
Title: Imminent Separation Fluid Diffuser Passage
Inventor: SOO SHAO LEE
IPC: F04D29/44
Filed: 1966-06-20
Abstract: 1,153,345. Boundary layer control. CATERPILLAR TRACTOR CO. 20 June, 1966, No. 27509/66. Heading F2R. A radial compressor 15 is formed with an annular diffuser 16 which is contoured so as to achieve a continuous condition of imminent boundary layer separation (defined as a condition wherein the boundary layer is about to, but has not yet, reached boundary layer separation) over the greater part of its length to obtain maximum efficiency with a minimum loss due to friction and heat. Formulµ are specified to derive the diffuser profile, which comprises a converging-, diverging-converging contour as represented by areas 18, 19 and 20 in Fig. 7, wherein as shown downstream of area 19, the flow reaches an imminent separation state denoted diagrammatically by diagrams 25, 26 and 27. One wall may be planar.