baber/WOPTO huggingface dataset:
Patent GB-933594-A (GB)
Title: Process for the production of epoxides
IPC: C07D301/28
Filed: 1961-11-27
Abstract: Epoxides are obtained by a process of heating a halohydrin in the presence of a tertiary base or quaternary salt thereof which may be heterocyclic, with an epoxide, whereby hydrogen halide transfer is effected to the epoxide and wherein the epoxide produced has a higher boiling point than both the epoxide used as a starting material and the halohydrin into which the starting material is converted.  The starting material may be a 1,2-halohydrin or one in which the halogen and hydroxyl group do not occupy adjacent carbon atoms.  Ethylene and/or propylene oxides are the preferred starting epoxides; the resulting halohydrins may readily be reconverted to the original epoxides by well-known methods, for reuse in the process.  Thus in the examples 1 and 2, glycerol a -monochlorohydrin is converted to 2,3-epoxypropanol by the action of ethylene oxide in the presence of N-ethyl pyridinium iodide and propylene oxide in the presence of N-ethyl pyridinium bromide respectively.  Example 3 refers to the preparation of phenyl glycidyl ether; Example 4 to styrene oxide.  In Examples 1-4, a batch process is practised.  In Example 5 the Bisphenol A condensate with epichloro hydrin reacts in the presence of pyridine with ethylene oxide in a continuous tubular reactor.
Patent GB-944097-A (GB)
Title: Improvements in manifolding machines
Inventor: DYKE LESLIE ALEXANDER
IPC: B41L5/06
Filed: 1959-12-14
Abstract: 944,097. Typewriters &c. ALACRA Ltd. March 14, 1961 [Dec. 14, 1959], No. 42467/69. Heading B6F. A manifolding machine having a pin feed for the stationery at or beyond the platen, and a mechanism to release the transfer webs for feeding by the stationery but at a lower speed, is provided with arrangements for feeding two sets of webs side-by-side around the platen so that the same or different matter may be typed separately on the two sets of webs. The typing on both sets may be effected simultaneously or in turn. The two sets of webs may be fed at different speeds. In one form, Figs. 1, 2 (not shown) a pin-wheel beyond the platen for feeding one set of webs may be driven by gearing from the platen and coaxial pin-wheels for the other set may be driven by separate mechanism as described in Specification 887,324. The carbon-release mechanism may be as described in Specification 848,797. In another construction, Fig. 4, one set of webs 30 is fed by pinwheels 31 embodied in the platen 32 and operated for projection of the pins as described in Specification 408,125. The other set 36 is fed by pin-wheels 39 on the infeed side of the platen and pin-wheels 40 on the outfeed side. The pin-wheels for the set 36 can be driven from the platen or by mechanism as employed for driving the summary-web feed shaft in Specification 887,324. The two sets of webs may overlap as they pass around the platen, each set having its own pin-wheel feed beyond the platen, and the shafts of the pin-wheels may be driven from the platen or by mechanism as described in Specification 887,324 for driving the summary-web shaft. Simultaneous printing may be effected on the overlapping parts. Further the two sets of carbon webs may be mounted on a common shaft situated to one side of the record webs and having a single release control mechanism, the carbon webs being turned through 90 degrees into alignment with their respective sets of record webs as described in Specification 941,881. Feeding means may be provided on the infeed side of the platen for the faster-moving set of webs or where the webs move at a speed different from that of the platen.
Patent GB-1323512-A (GB)
Title: Sample container
IPC: G01N35/04
Filed: 1971-09-13
Abstract: 1323512 Sample receptacle e.g. for centrifuge TECHNICON INSTRUMENTS CORP 13 Sept 1971 [14 Sept 1970] 42565/71 Addition to 1286207 Headings B1X and B2P A liquid sample receptacle comprises a cup portion 70, a label (carrying) portion 73 spaced from the cup portion and with its long axis parallel to that of the cup portion, a connector portion 72 integral with the cup portion and the label portion and a vessel 82 supported in and by the cup portion for receiving the liquid sample. In the embodiment shown, cup portion 70 has upwardly extending circumferentially arranged resilient fingers 78 with transverse vessel-retaining ribs 80. Vessel 82 may have identifying sticker 84 and stopper 83. In another embodiment (Fig. 4 not shown), the connector portion 72 of the cup has an extension (88) with a downward flange for engagement with a pivot member so that the receptacle can swing outwardly when mounted on a centrifuge type turntable.
Patent GB-1165588-A (GB)
Title: Bowling Pin Sensor.
IPC: A63D5/04
Filed: 1967-09-19
Abstract: 1,165,588. Bowling pin detector. AMERICAN MACHINE & FOUNDRY CO. 19 Sept., 1967 [31 May, 1967], No. 42591/67. Heading A6D. In a bowling pinspotting machine a pin detector 42, Figs. 2 and 3, comprises reflecting means 45 oriented to receive light-reflected from a bowling pin standing on the alley which is rotated to scan the bowling alley for standing pins, a photocell 49 and a spherical or parabolic reflecting surface 46 to focus the light received on the photocell. A signal is generated by the photocell when light is received from a standing pin or pins and this is employed to control the pinspotting machine e.g. to obviate the need for the table to descend twice when a strike occurs.
Patent GB-1156754-A (GB)
Title: Bit for a Soldering Iron.
Inventor: CLARK CHARLES ALFRED
IPC: B23K3/02
Filed: 1967-09-20
Abstract: 1,156,754. Soldering. INTERNATIONAL NICKEL Ltd. 20 Sept., 1967, No. 42774/67. Addition to 1,104,656. Heading B3R. A bit for a soldering iron formed from tungsten or molybdenum has a tip of or consisting predominantly of ruthenium coated with or superficially alloyed with palladium, platinum, copper or an alloy of any two or all three of these elements. The tip and methods of forming a coating or superficial alloy on it are as described in Specification 1,104,656 and may consist predominantly of ruthenium coated with or superficially alloyed with palladium or platinum or superficially alloyed with a coating of palladium diffused into the tip or coated with copper. The ruthemium of the tip may be alloyed with 0À25-2À5% rhenium. In an example, a disc is cut from a sheet of hot rolled and annealed molybdenum, is plated with palladium and heat treated at 1000‹ C. in hydrogen so that the palladium diffuses and forms a superficial alloy with the ruthenium. The disc is then electric resistance welded to a 45 degrees diagonally ground end on a molybdenum rod. In another example, a hollow ruthenium cone produced by pressing and sintering ruthenium powder is superficially alloyed with palladium as before and then brazed to the end of a tungsten rod using an alloy of 44% ruthenium 56% molybdenum in a high frequency induction coil.
Patent GB-1541670-A (GB)
Title: Cosmetic compositions based on copolymers prepared in the presence of cerium ions
IPC: A61K8/00
Filed: 1976-10-15
Abstract: A polymer is prepared by polymerisation of an unsaturated monomer with a compound bearing at least one OH function, this polymerisation being performed in an aqueous medium in the presence of cerium ions, and the polymer thereby obtained is incorporated in a cosmetic vehicle. These compositions may be used in various fields, and especially for hair setting products and lacquers, and for creams, gels and nail varnishes.
Patent GB-1242896-A (GB)
Title: Semiconductor device and method of fabrication
Inventor: ADAMIC JOSEPH WILLIAM JR
IPC: H01L21/00
Filed: 1968-09-11
Abstract: 1,242,896. Semi-conductor devices. TEXAS INSTRUMENTS Inc. 11 Sept., 1968 [26 Sept., 1967], No. 43132/68. Heading H1K. The source and drain regions 28, 29 of an IGFET are formed by selectively removing a central portion of a single initial region formed in a substrate 19 of the opposite conductivity type by diffusion or epitaxy, e.g. into an etched recess, the portion to be removed being defined by an aperture in a relatively thick dielectric layer 23, and subsequently providing a relatively thin gate insulation layer 27 over the channel region of the substrate 19 thus exposed. Source, drain and gate electrodes 34, 36, 37 are then provided, the last-mentioned of these being insulated from the source and drain regions 28, 29 by the relatively thick dielectric layer 23. The device threshold voltage may be adjusted by diffusing a dopant into the channel region prior to deposition of the gate insulation 27. The substrate 19 is preferably of Si, suitable source and drain dopants being B, P, As or Sb. The gate insulation 27 may be of SiO 2  or SiO 2  and Si 3 N 4 .
Patent GB-966344-A (GB)
Title: Improvements in or relating to methods of and apparatus for forming light-diffusing coatings on the internal surfaces of hollow vessels
Inventor: CATTANACH HAMISH ALEXANDER GEO
IPC: H01K3/00
Filed: 1961-12-06
Abstract: <PICT:0966344/C1/1> A light-diffusing coating of titanium dioxide or silicon dioxide is applied to the inner surface of a hollow vessel, for example an incandescent lamp envelope, by subjecting a titanium or silicon compound, for example the tetrachloride to thermal hydrolysis in a hydrogen-oxygen flame, thereby depositing an oxide layer on the surface, wherein a mixture of hydrogen and the silicon or titanium compound is fed into the vessel through a burner orifice, oxygen is fed via a second orifice, and hydrogen is fed into the vessel between the two orifices to form a barrier gas, screening the gas mixture from the oxygen, such that the hydrolysis of the compound in the immediate vicinity of the burner is substantially avoided. In the drawings, a lamp envelope 3 is rotatably mounted about a burner 5, which burner comprises a central vertical tube 6, which is fed with a mixture of titanium tetrachloride and hydrogen derived by passing hydrogen through heated titanium tetrachloride in tank 8, an outer concentric pipe 11 which is fed with hydrogen to form a barrier, and an outermost concentric pipe 25 which is fed with oxygen.  The supply of hydrogen-tetrachloride mixture is desirably arranged so that the supply is only on when an envelope is in position, the hydrogen barrier gas acting as a pilot flame at other times.
Patent GB-1022002-A (GB)
Title: Improvements in and relating to motor vehicle suspension systems
IPC: B60G3/26
Filed: 1963-11-06
Abstract: 1,022,002. Vehicle suspension. T. P. BENNETT. Nov. 6, 1964 [Nov. 6, 1963; July 31, 1964], Nos. 43793/63 and 30391/64. Heading B7D. A motor vehicle suspension comprises a pair of wheel carrying arms 10, 11 mounted on horizontal spindles 15, 16 at the ends of trailing arms 17 which are pivotally connected to a chassis frame 18 by transverse bars 19 which may be torsion bars. Transverse bars 20 and 23 are pivoted at their ends 21, 22 and 24, 25 to the upper and lower ends of opposite wheel carrying arms whereby, upon cornering, both wheels will incline towards the centre of the vehicle and the track will increase slightly. In a modification, the tilt of the inner wheel becomes less towards the vehicle centre, zero or away from the vehicle centre according to dimensions chosen by pivoting the lower ends of the transverse bars on downwardly depending flanges fixed to each trailing arm. In both embodiments, the track of the wheels is not changed in ordinary vertical movements.
Patent GB-1356309-A (GB)
Title: Acidic hydrocarbon resins
IPC: C08C19/28
Filed: 1971-09-21
Abstract: 1356309 Maleic modified resins ESSO RESEARCH & ENG CO 21 Sept 1971 43890/71 Heading C3P Copolymers of butadiene and cyclopentadiene or its dimer may be prepared by thermal polymerization in the absence of a catalyst at 180 to 300‹ C. Acidic resins having an acid number of 10 to 400, a softening point of 10 to 130‹ C. and a bromine number of 30 to 80 and comprising a reaction product of such copolymers with 1 to 40 weight per cent based on the copolymer of an α,#-unsaturated dicarboxylic acid or anhydride, may be prepared by reacting the copolymers with the dicarboxylic component. Alternatively the reactions may be effected simultaneously. The products may be hydrogenated or oxidized, or reacted with ammonia, amines, diamines, hydroxylamine, alcohols, dialcohols, water or alkali metal salts. In Examples 1 to 11 butadiene-cyclopentadiene copolymers are prepared by thermal polymerization and the products reacted with (12 to 15) maleic anhydride.
Patent GB-896080-A (GB)
Title: Seal arrangement for relatively rotatable parts
IPC: F16J15/40
Filed: 1960-12-21
Abstract: 896,080. Stuffing-box substitutes. VOITH G.m.b.H., J. M. Dec. 21, 1960 [Dec. 28, 1959], No. 43927/60. Class 122 (5). A hydrodynamic seal between a rotary shaft 1 and a stationary housing 2 comprises an annular intermediate driven member 3 forming with the housing and the shaft gaps 10, 11 and having respectively on each of its inner and outer surfaces two sections 6, 7 and 8, 9 of helical feed grooves of opposite hand. The drive for the member 3 may be independent from the shaft drive and may be operated by fluid pressure, such as an oil-operated Pelton turbine, or by electricity. Sealing medium 12, e.g. oil, is introduced prior to operation in the gaps 10, 11 through ducts 20, 21. When the member 3 is rotated, the medium is forced by the helical grooves towards the centre of the gaps from both ends thereof and the resultant built up pressure provides a seal against the flow of the pressure-fluid to be sealed off contained in the space 4, the member 3 being supported radially and axially in a floating manner. Cooling fluid is circulated through grooves 22, 23 in the shaft and/or the casing for keeping the viscosity of the sealing medium constant. When the shaft and the member 3 are stationary, the latter, under the influence of the pressure fluid acting on its inner end face 14, bears with its annular surface 15 against a shoulder 16 on the casing 2 and with its outer end surface 17 against a flange 18, 18<SP>1</SP> on the shaft 1 directly or through a resilient diaphram seal 19.
Patent GB-894897-A (GB)
Title: Improvements in or relating to chairs or like articles of furniture having fitted cushions and a method of securing the cushions to these chairs
IPC: A47C7/26
Filed: 1960-12-22
Abstract: 894,897. Seats. VAN DER GOOT, A. Dec. 22, 1960, No. 44162/60. Class 52(2). In a chair or like article of furniture including a chair body and a cushion frame 11, the frame 11 has four sides, three of which include recessed fastening members 12, 13 and the fourth of which is secured to the chair body and a cushion 17 is supported by the frame 11 and is covered by a layer of textile, leather or like material 18, whose edges are received within the recesses of the corresponding fastening members 12, 13 and are retained therein by wedging engagement of the edges of a seat section 1 of the chair body with the fastening members 12, 13 and the fourth side of the frame 11 is secured to the chair body by engagement of a plurality of hook-shaped members 10 there-around, the hook shaped members 10 being mounted on the chair body adjacent one edge of the seat section 1. The cushion 17 may be secured to the upper surface of the frame 11 by means of an adhesive. Reinforcing strips 15, 16 are provided on the underside of the frame 11.
Patent GB-1299183-A (GB)
Title: Improvements relating to surveying instruments
Inventor: HOWELL MARK IAN
IPC: G01V3/15
Filed: 1969-09-06
Abstract: 1299183 Surveying instruments ELECTROLOCATION Ltd 27 July 1970 [6 Sept 1969] 44175/69 Heading G1N In an instrument for detecting underground objects comprising a transmitting coil 12 and a receiving coil 17 mounted at right-angles thereto, each coil has a ferrite core. The meter 23 may be calibrated to zero over free ground by adjusting the angle of coil 12 by screws 19 as a coarse adjustment, and, as a fine adjustment, by adjusting a proportion of the output of a ferrite cored choke 20 supplied to the receiving coil in antiphase. Reference has been directed by the Comptroller to Specification 1087216. (For Figures, see next page)
Patent GB-1492594-A (GB)
Title: Method and apparatus for control of weld temperature in a high frequency electric resistance welded pipe mill
IPC: B23K13/08
Filed: 1974-10-11
Abstract: 1492594 Current-measuring arrangements USS ENGS & CONSULTANTS Inc 11 Oct 1974 [11 Oct 1973] 44273/74 Heading G1U [Also in Divisions G3 and H5] A seam-welding installation Fig. 1 (not shown) is controlled by electric circuitry (see Division G3) to which signals representing the welding current have to be applied. Fig. 2 depicts the welding electrodes 22 which contact the workpiece at 8 and, in use, are connected to a high frequency power supply 10. To monitor the welding current a suitable transducer 34, Fig. 3 (not shown) is located in a slot 24 in one at least of the electrodes. The preferred transducer comprises litz wire wound on an alumina core inside a glass tube, the wire being conductively connected to the signalling circuit but only inductively coupled to the power circuit.  The claims relate to the control system.
Patent GB-1196509-A (GB)
Title: A process for Oxidizing Trichloroethylene to Dichloroacetyl Chloride
IPC: C07C51/58
Filed: 1968-09-18
Abstract: 1,196,509. Dichloroacetyl chloride. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 18 Sept., 1968 [20 Sept., 1967], No. 44288/68. Heading C2C. Dichloroacetyl chloride is obtained by oxidizing trichloroethylene with oxygen or an oxygen-containing gas at 50‹ to 250‹ C., at atmospheric pressure or above, in the presence of 20 to 2000 p.p.m. of an azo compound and 30 to 1000 p.p.m. of a secondary or tertiary amine, the azo compound having the formula where each R is a hydrogen atom or a cyano, -R1-CO-NH 2 , carbalkoxy or C 1-6  alkyl radical or two adjacent R groups complete an alicyclic ring, R<SP>1</SP> being a covalent bond or a C 1-6  alkylene radical, and the amine being a secondary amine with up to 12 carbon atoms, a tertiary alkylamine with up to 18 carbon atoms or a tertiary arylamine with up to 14 carbon atoms. Reference has been directed by the Comptroller to Specification 1,073.369.
Patent GB-1293075-A (GB)
Title: Envelope
Inventor: AN-YU WONG
IPC: B65D27/38
Filed: 1970-09-17
Abstract: 1293075 Envelopes AN-YU WONG 17 Sept 1970 44355/70 Heading B6A The closure flap 14 of an envelope is divided into two parts 17, 18 by a sewn-in opening thread 15 extending parallel to the fold line of the flap. An opening 19 may be provided along the thread line to facilitate gripping of the thread. The flap part 17 is adhesively secured to the rear panel 11 of the envelope, and an adhesive coating may be provided on either face of the part 17. If the coating is on the side which normally faces away from the back panel, the part 17 has to be folded under the part 18 before securing the envelope.
Patent GB-1405865-A (GB)
Title: Process for producing a rubber-like chloroprene copolymer
IPC: C08F236/18
Filed: 1973-09-21
Abstract: 1405865 Chloroprene-unsaturated ester copolymerization TOYO SODA MFG CO Ltd 21 Sept 1973 [22 Sept 1972 20 April 1973] 44430/73 Heading C3P Chloroprene, or a mixture thereof with other conjugated diene(s), is copolymerized with an ester of an alpha, beta-unsaturated carboxylic acid by irradiating the monomer mixture with ultra-violet or white light in the presence of (a) an organoaluminium compound, (b) water, the amount of (b) being 0À10 to 1À75 moles per g. atom of aluminium of (a), and, optionally, (c) a halogen-containing organic compound or free halogen, as an accelerator. The reaction mixture may be aged in the absence of light prior to the irradiation copolymerization. Suitable light sources are sunlight, a thallium or tungsten lamp, or a high pressure mercury arc lamp. The polymerization may be carried out in bulk or, preferably, in a solvent such as haloaliphatic hydrocarbons, aromatic hydrocarbons or haloaromatic hydrocarbons, particularly monochlorobenzene. Many specific monomer combinations, containing up to 3 dienes or 3 ester monomers, are listed, those copolymers in which one of the ester monomers is derived from an unsaturated alcohol being sulphur vulcanizable. The copolymers are elastomeric and may be blended with other elastomers. The copolymers have an essentially alternating structure with the diene units trans-1,4. In typical examples, chloroprene or chloroprene/isoprene are copolymerized with methyl methacrylate, n-butyl acrylate, methyl methacrylate/2-ethyl-hexylmethacrylate/allyl methacrylate, 2-ethylhexyl methacrylate/oleyl methacrylate or methyl methacrylate/stearyl methacrylate in the presence of the above types of irradiation and of (a) Et 2 AlCl or Et 3 Al 2 Cl 3 , (b) H 2 O, alone or as an aqueous solution of phosphoric acid and in some cases (c) bromoacetophenone, chloromethyl naphthalene, tetrabromophthalic anhydride, carbon tetrabromide, bromine or benzyl bromide.
Patent GB-917165-A (GB)
Title: Improvements relating to perambulators and the like
Inventor: PENFOLD FREDERICK THOMAS
IPC: B62B9/12
Filed: 1960-12-28
Abstract: 917,165. Collapsible vehicles. LINES BROS. Ltd. Sept. 29, 1961 [Dec. 28, 1960], No. 44467 / 60_ Class 108(1). The -upper and lower rigid frames 1, 2 of a collapsible perambulator body are held in spaced relation by U-shaped struts 7 and the ends of the fabric are stiffened by transverse slats 10 held in pockets formed in the material. Segments of buckram and piping at the edges may also be used to maintain the boat-shaped appearance. Specification 917,166 is referred to.
Patent GB-1365784-A (GB)
Title: Process for preparing a silica suitable for use as a thickening agent
IPC: C08K3/36
Filed: 1972-09-26
Abstract: 1365784 Silica W R GRACE & CO 26 Sept 1972 [29 Sept 1971] 44474/72 Heading C1A [Also in Divisions C3 and C5] Loosely aggregated silica particles with sizes of 0À5 to 5 microns are made by first treating a silica hydrogel with an organic liquid to replace at least 85% of the water in the hydrogel with the organic liquid and then concurrently drying and deagglomerating the porous silica so produced in a fluid energy mill. Replacement of the water may be effected by (1) mixing the hydrogel with a water-miscible organic liquid and then removing the excess organic liquid containing water or (2) azeotropically distilling the hydrogel with the organic liquid. A watenmiscible organic liquid in the gel may be replaced by a water-immiscible organic liquid.
Patent GB-1292161-A (GB)
Title: Analogue calculating
Inventor: CHAMBERS JOHN PHILIP
IPC: G06G7/161
Filed: 1969-09-10
Abstract: 1292161 Analogue calculating BRITISH BROADCASTING CORP 31 July 1970 [10 Sept 1969] 44657/69 Heading G4G The outputs of three integrators 11a, 11b, 11c are combined in any desired manner in a function generator 15 the output of which is compared with a reference level VR in comparator 16 and when the output exceeds VR a pulse generator 18 is triggered to provide pulses to stop the integrators and actuate sample and hold circuits 12a, 12b, 12c which record the outputs of the integrators which are then reset by further pulses from generator 18. The function generator 15 may be an adder in which case by setting VR = 1 the outputs of the integrators will be normalized when the pulse generator is triggered. Fig. 5 (not shown) is of a circuit used for performing division by omitting the function generator 15 and applying the signal held by one integrator 11b to the output of the apparatus when the output of the other integrator 11a reaches a predetermined level. Signals representing the divisor and dividend are applied to the inputs of integrators 11a, 11b respectively.