baber/WOPTO huggingface dataset:
Patent GB-1254734-A (GB)
Title: Improvements in and relating to integrators
Inventor: BAILEY CHARLES JOHN
IPC: G06G7/18
Filed: 1968-10-15
Abstract: 1,254,734. Integrating circuits. TIME ELECTRONICS Ltd. 14 Oct., 1969 [15 Oct., 1968], No. 48738/68. Heading G4G. An analogue integrating circuit comprises a pair of input terminals 11a, 11b, a pair of output terminals 12a, 12b and a single-input inverting amplifier A having its input connected to one of the input terminals 11a and its output connected to one of the output terminals 12a, the amplifier output also being connected via a capacitor C to the other input terminal 11b, the latter also being connected via a resistor R to the other output terminal 12b. If V 0  is the output voltage across terminals 12a, 12b, i the current flowing between 11a and the amplifier and I the current flowing through C and R, then  The circuit does not re-set to zero as is indicated by the presence of the first term on the RHS of the equation. It re-sets to the value V IN  of the input voltage, since the equation may be re-written In order to correct this error, a resistor nR is interposed between C and 11b (Fig. 2, not shown), and the output voltage is sensed by a circuit connected across the output terminals 12a, 12b. The sensing circuit is connected to a monostable circuit of pulse duration t r  which actuates the re-setting switch S. If t>t r , it can be shown that by arranging the values of t r , C, R and n such that t r =(n+1)CR, the output voltage V 0  is given by: -V 0 =tV IN /CR. The Specification derives equations for the input resistance of the integrator for variable and quasi-static values of input voltage V IN .
Patent GB-1221447-A (GB)
Title: Chlorination of uracils using hypochlorites
IPC: C07D239/553
Filed: 1968-10-15
Abstract: 1,221,447. Uracils. E. I. DU PONT DE NEMOURS & CO. 15 Oct., 1968 [16 Oct., 1967], No. 48770/68. Heading C2C. Sodium and potassium salts of 5-chloro-3,6- disubstituted uracils are prepared by reacting an aqueous solution of the sodium or potassium salt of a 3,6-disubstituted uracil with an aqueous solution of a 0-40% stoichiometric excess of sodium or potassium hypochlorite at a temperature between -10 and +65 C. The free uracils may be obtained by acidification of the salts thus produced. The solution of the starting material may be prepared by the reaction of a substituted urea with a #-keto ester in an aprotic solvent followed by alkaline cyclization of the ureido intermediate, or by reacting a substituted acetoacetamide with an alkyl carbamate followed by cyclization of the intermediate crotonamide.
Patent GB-1332005-A (GB)
Title: Perfluoroalkyl-sulphonylaryl esters
IPC: C07C67/00
Filed: 1970-10-15
Abstract: 1332005 Perfluoroalkylsulphonylaryl esters BAYER AG 15 Oct 1970 [17 Oct 1969] 49001/70 Heading C2C The invention comprises amino-substituted aryl esters of perfluoroalkylsulphonic acid of formula (R F SO 2 O) x -Ar(NH 2 ) y  in which R F  is a perfluoroalkyl group having up to 12 carbon atoms, Ar is an aryl radical, x is 1 or 2 and y is 1 or 2. These and perfluoroalkyl sulphonic acid aryl esters in general may be prepared by reacting a perfluoroalkylsulphonyl fluoride (in which the alkyl group has 1-12 carbon atoms) with an aryl ester of a silicic acid of general formula (R n SiO 4-n ) x Ar 4-n  in which R is phenyl or alkyl, n is 0-3, Ar is aryl radical (including a heterocyclic radical of aromatic character) and x is 1-4 at 20-300‹ C. in the presence of a catalyst comprising a basic substance and fluoride ions. The radical Ar may be monocyclic or condensed polycyclic aromatic or heterocyclic or may consist of one or more ring systems directly connected or connected through bridging groups, e.g. alkylene groups and may be substituted, e.g. by amine, carboxyl, alkenyl and/or nitro groups. The products may be used as surfactants, foam stabilizers, insecticides and herbicides.
Patent GB-963958-A (GB)
Title: Damped laminate
IPC: E04B1/84
Filed: 1962-12-31
Abstract: 963,958. Laminates. LORD MANUFACTURING CO. Dec. 31, 1962 [Jan. 18, 1962], No. 49016/62. Drawings to Specification. Heading B5N. A vibration damping laminate comprises outer skins of structural material and an intermediate section of alternate layers of structural material and viscoelastic material, the layers of the intermediate section being perforated with the perforations in register, there being a viscoelastic layer between the intermediate section and each of the outer skins. The structural material may be e.g. aluminium sheet or glass fibre reinforced synthetic resin and the viscoelastic material may be silicone rubber sheet polyisobutylene or polyvinyl acetate with a vermiculite filler. Sheets of aluminium may be coated or treated for bonding to the rubber and bonded to silicone rubber sheets in a mould. Typical thicknesses of sheets are between 0.005 inch and # inch.
Patent GB-1171631-A (GB)
Title: Reciprocatory Internal Combustion Engines
Inventor: PRESTON VERNON
IPC: F16H57/038
Filed: 1966-11-02
Abstract: 1,171,631. Motor vehicle driving gear. FORD MOTOR CO. Ltd. 2 Nov., 1966, No. 49051/66. Heading B7H. [Also in Division F1] The output shaft 3 of a motor vehicle engine is at right angles to the crank-shaft 2 and driven directly through gearing 12, 13, 17, from an intermediate point thereof. One or more gears 7 arranged e.g. at the centre portion of the crankshaft drive a transfer shaft 14 which drives the output shaft 3 through bevel gears 13, 17. The engine may be in line with the cylinder axes at right angles to, or parallel to, the shaft 3, or it may be of V or opposed piston type. The end of the shaft 3 is adapted to be connected to a clutch driving a manual gear-box or to an automatic transmission.
Patent GB-1399706-A (GB)
Title: Optical scanning device
IPC: H04N3/09
Filed: 1972-10-25
Abstract: 1399706 Television BARR & STROUD Ltd 26 Sept 1973 [25 Oct 1972] 49119/72 Heading H4F Received infra-red or visible radiation is scanned across a linear array of detector elements 11, Fig. 1, by a drum 16 rotatable about an axis 17, the drum 16 carrying a plurality of optical members 13 each formed of two mirrors 14,15, the line of intersection 18 of the planes containing the mirrors of each member 13 being at right-angles to the axis 17, the lines 18 all being the same perpendicular distance from axis 17. The lines of intersection 18 may be displaced from each other parallel to axis 17 so that different optical members 13 pass radiation from different areas of the viewed subject to the detector elements 11. A radiation-intercepting device (25, Fig. 2, not shown) may be included to pass in front of detector elements 11 to permit referencing of the detector elements 11. The optical members 13 may be formed on the surfaces of a prism. Alternatively an arrangement as shown in Fig. 6 may be used.
Patent GB-1124386-A (GB)
Title: Improvements relating to emergency running rings in wheels for tubeless tyres
Inventor: BAUMANN HEINRICH
IPC: B60B11/10
Filed: 1966-11-02
Abstract: 1,124,386. Pneumatic tyres. DAIMLERBENZ A.G. 2 Nov., 1966, No. 49159/66. Heading B7C. An emergency running ring 3 for a tubeless pneumatic tyre comprises hollow segments of trapezium-like cross-section with rounded corners which abut one another at their positively interengaging ends, which segments are clamped by bolts 6 introduced from the rim base 1 both to the base and also the tyre beads 5 which bolts are anchored in the tips or apices of triangular, V- or U- shaped expanding bodies 7 loosely inserted in the rings. The edges 12 of the bodies 7 are supported in recesses 13 inside the edges of the cavities and the segments may be stiffened in their outer half away from the rim base by bowed transverse plates 14.
Patent GB-1192433-A (GB)
Title: Improvements in or relating to Electro-Acoustic Transducers
IPC: H04R17/00
Filed: 1967-05-16
Abstract: 1,192,433. Piezoelectric transducers. INDUSTRIAL RESEARCH PRODUCTS Inc. 16 May, 1967 [17 May, 1966], No. 49215/69. Divided out of 1,192,432. Heading H4J. The Specification discloses the piezo-electric transducer described in the parent Specification, but the claims relate generally to a transducer having a pivoted lever interposed between the diaphragm and the transducer element.
Patent GB-1117330-A (GB)
Title: Signal generating apparatus
IPC: H03L1/00
Filed: 1965-11-19
Abstract: 1,117,330. Delay circuits; sawtooth generators. HITACHI Ltd. 19 Nov., 1965 [12 Dec., 1964], No. 49344/65. Heading H3T. A circuit usable as a time-delay circuit or sawtooth generator comprises (Fig. 1) a timeconstant circuit C 1 R 1  across a supply E and a parallel circuit R 2 R 3  feeding the gate of an SCR. On closing the switch SW the capacitor C 1  charges up until the potential at b equals that at c when the SCR fires and discharges the capacitor. If the switch remains closed, the circuit is self-oscillatory and produces sawtooth waves across the resistor R 4 . The repetition rate or time-delay is independent of variations in supply voltage. The output can be used for phase-control of a further SCR.
Patent GB-1463088-A (GB)
Title: Process for producing a formamide derivative
IPC: C07C233/45
Filed: 1974-11-14
Abstract: 1463088 N,N - Di(methylcarboxylatomethyl)- formamide SNAMPROGETTI SpA 14 Nov 1974 [21 Nov 1973] 49366/74 Heading C2C A process for producing a compound having the formula comprises: (i) hydrolysing and esterifying with methyl alcohol in the presence of water and an inorganic acid (e.g. HCl), a compound having the formula so as to produce the corresponding acid-addition salt of a compound having the formula (ii) converting the acid-addition salt of the compound of Formula III above to the free compound of Formula III above; and (iii) formylating the free compound of Formula III above with chloral in the presence of a diluent (e.g. benzene or toluene) so as to produce the desired compound of Formula I above.
Patent GB-1578940-A (GB)
Title: Thiazolidine thiazane and morpholine carboxylic acids and esters
IPC: A61K31/425
Filed: 1977-11-28
Abstract: The novel compounds of the general formula I, and their salts, are suitable for alleviating or eliminating angiotensin-induced hypertension. These compounds are prepared by acylating a compound of the formula II with a compound of the formula III. The symbols which are used in the formulae are defined in the claims. The compounds of the formula I in which R4 is a hydrogen atom can be oxidised to the corresponding disulphides. <IMAGE>
Patent GB-1480010-A (GB)
Title: Fluid handling assembly
IPC: F04B53/14
Filed: 1975-12-02
Abstract: 1480010 Valves E I DU PONT DE NEMOURS & CO 2 Dec 1975 [5 Dec 1974] 49472/75 Heading F2V [Also in Divisions B8 and F1] In a multi valve fluid handling assembly a first diaphragm 40, which is operated by a solenoid 51, controls flow between a passage 25 connected to a pump and an inlet/outlet passage 27 connected to a probe, and a plurality of secondary diaphragms 55, which are operated by solenoids 57, control flow between secondary passages 37 connected to a source of secondary liquid and orifices 35 in the side wall of passage 25. On excess pressure in passage 25 diaphragm 40 moves upwards against the bias of a spring- loaded plunger 44 to open the passage 25 to a vent passage 49.
Patent GB-1444598-A (GB)
Title: Hydraulic press
IPC: B29C45/67
Filed: 1973-10-26
Abstract: 1444598 Moulding press P PONCET 26 Oct 1973 [27 Oct 1972] 49920/73 Heading B5A An hydraulic press for moulding plastic material between mould halves 7, 8 mounted, respectively, on a vertically movable platen 6 and a fixed platen 4 comprises a ram 9, 10 raising the platen 6 to bring the mould halves together and one or more pressure applying rams 11, 12 depending from the platen 6 and acting between that platen and a fixed baseplate 2. The piston-rods of each ram 11, 12 rotatably carries an abutment 13 which, in one position, enables it to pass through an opening 2a, Fig. 4, in the baseplate, thereby enabling the mould to be opened and closed by the ram 9, 10. When the mould is closed each abutment is brought above the baseplate and rotated by rams 16, 17 to the position of Fig. 2 enabling pressure to be applied by the rams 11, 12. In the latter position each abutment is located beneath edges 14a, 15a of members 14, 15 enabling the rams 11, 12 to effect initial mould opening. The rod of each pressure applying ram may carry a number of pistons spaced along it, each associated with a space along the axis of its cylinder to which pressure fluid is supplied, e.g. from a common distributer controlled by a servomotor ensuring identical displacements of the rams. If a single pressure applying ram is used and located centrally of the press, the parts 14, 15 may be replaced by a circular cap (50), Fig. 10, not shown, with an opening (50a) for the passage of the abutment. The rod 12 of the ram is then tubular and the rod of the mould closing ram passes through it. In the embodiment of Fig. 15 the rod 12 of the pressure applying jack receives the piston 51 of the mould closing ram, and the rod of such piston is secured to a bracket 53 and has a passage 54 for the flow of pressure fluid. The abutment on the rod 12 includes a depending sleeve 62 between which, and a fixed plate 58, two rams are connected for rotating the abutment.
Patent GB-1058005-A (GB)
Title: Improvements in or relating to light fittings
IPC: F21V17/00
Filed: 1964-12-10
Abstract: 1,058,005. Electric lighting fittings. J. W. H. FLEET. Dec. 7, 1965 [Dec. 10, 1964], No. 50225/64. Heading F4R. A lighting fitting has mounted thereon rollers for supporting one or more extensible screens which may be reflective, e.g. of plastics material with a metallized layer, or diffusing. A fitting for a false ceiling consists of a support 16 for two fluorescent tubes 20 and two rollers 18 carrying reflective blends 22, the outer edges of which are secured to the ceiling tiles 26. The mouth of the fitting is closed by one or more translucent screens 28. In another form of fitting, the fluorescent tubes are carried by a bracket extending from a wall or suspended from the ceiling, the bracket carrying rollers outside the tubes from which extend translucent blinds secured to the ceiling at their opposite edges. Alternatively, the tubes may be screened by fixed reflectors and reflective blinds may extend to the ceiling from rollers mounted on the inner side of the tubes. In a further modification, the blinds are part reflecting and part translucent, the reflecting part extending from the support for the tubes to the ceiling and the translucent part from thence to the wall.
Patent GB-1163365-A (GB)
Title: Improvements in and relating to Electro-Mechanical Oscillators
IPC: G04B17/22
Filed: 1967-11-06
Abstract: 1,163,365. Reciprocating motors. JAZ S.A. 6 Nov., 1967 [14 Nov., 1966; 23 Dec., 1966; 20 Feb., 1967], No. 50273/67. Heading H2A. [Also in Division G3] An electromechanical tuning fork oscillator has pick-up coil 5 and driving coil 6 mounted on magnets 7, 8 respectively and disposed between the times 4, 4a of the fork together with a magnetic element 10 which is movable between the tines perpendicular to their longitudinal axis to alter the frequency of oscillation. The coils are connected together through a transistor amplifier 9 and the element 10, which may be permanent magnet is mounted on a bi-metallic strip 11 to provide for temperature compensation. The whole strip and magnet may be movable or two magnets may be used, one to adjust the operating frequency and the other to provide temperature compensation. The element 10 may be disposed between the coils or near the ends of the tines. The oscillator may drive an escape wheel 17 which has a toothed track and is disposed between the poles of a C-shaped magnet 14 slidably mounted on tine 4. An equivalent mass 18 is slidably mounted on the other tine 4a and movement of these sliders is used to make an initial adjustment of frequency.
Patent GB-503781-A (GB)
Abstract: 503,781. Interrupters. BOSCH AKT.- GES., R. Oct. 13, 1937, No. 27794. Convention date, Oct. 16, 1936. [Class 38 (v)] An oscillating interrupter lever for electric ignition devices, has an oscillating contact f and a deflecting member d secured opposite each other on a lever a, a wall n being provided between them to protect the contact from contamination by oil from the cam-shaft. The lever a pivots about a bolt passing through a bore b and secured to it by a bolt m are : the oscillating contact f, the deflecting spring d and the protecting wall n of metal or felt which both fit into recesses in the lever a, a part o of the latter being wider than the former, an intermediate spring h and one end of a spring k, the opposite end of which is secured to the edge of the casing i.
Patent GB-1443906-A (GB)
Title: Capacitors
IPC: H01G4/228
Filed: 1974-11-21
Abstract: 1443906 Capacitors ILLINOIS TOOL WORKS Inc 21 Nov 1974 [29 Nov 1973] 50418/74 Heading H1M A capacitor comprises a flexible plastics dielectric film 10 having metallized electrode layers on opposite surfaces, the assembly being gripped between the free turned-back ends of conductive clip 20 which make electrical contact with the electrode layers through pieces of foil 18, bight portion 28 being eventually severed to provide leads. Metallized film 10 may be wound using clip 20 as a mandrel, or it may be folded in zig-zag fashion prior to attaching the clip (Figs. 3 to 5, not shown). Such a folded strip may have a number of clips associated with it and be severed to form a corresponding number of individual capacitors which may be encapsulated (Figs. 6 to 8, not shown).
Patent GB-1388698-A (GB)
Title: Closed vessel comprising a digital light deflection system
IPC: G02F1/31
Filed: 1972-11-03
Abstract: 1388698 Deflecting light PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 3 Nov 1972 [6 Nov 1971] 50801/72 Heading H4F In a digital light deflector of the type wherein electrode pairs 7 and birefringent prisms 6 are disposed within a closed vessel full of a liquid such as nitrobenzene suitable for forming a Kerr cell with each electrode pair, the vessel walls are at least partly formed of a vacuum-tight ceramic material constituted by alumina, Al 2 O 3 . To make the deflector of Fig. 1, a cylindrical body 1 is provided with plated apertures for the reception of conductors 10 and two metal tubes 8, by soldering with vitreous and metallic solder respectively. After soldering electrods 7 to conductors 10 and mounting the prisms 6, closure plates 2 and 3 are secured to the ends of body 1 by diffusion of nickel plating previously deposited on the mating surfaces, or by using a tin-lead alloy. Tubes 8 are used for rinsing and filling the vessel and are closed by glass parts 11, 12. Before the discs 2, 3 are secured to the body 1, sapphire windows 4, 5 are vitreous soldered therein. In a seond embodiment, Fig. 2 (not shown), the body has a rectangular (or other polygonal) cross section. Three ceramic plates are soldered to form a U-shaped member in which all the components 6, 7, 8, 10 are located. Further plates then close the top and ends of the vessel before filling. The end plates may be detachable for repairs.
Patent GB-1340667-A (GB)
Title: Thiomethylated benzophenones
IPC: C08F283/01
Filed: 1972-11-03
Abstract: 1340667 Photopolymerization BAYER AG 3 Nov 1972 [5 Nov 1971] 50816/72 Heading C3P [Also in Division C2]  Photopolymerizable compositions comprise vinyl compounds or their mixtures, or their mixtures with unsaturated polyesters and, as initiators, thiomethylated benzophenones of Formula I in which R<SP>1</SP> denotes an aryl or aralkyl group optionally substituted by one or more substituents selected from alkyl, halogen, and alkoxy or the p-benzoyl-benzyl radical, R<SP>2</SP> denotes H or alkyl and R<SP>3</SP> denotes H, alkoxy or methyl, which methyl is optionally substituted by -SR<SP>1</SP>. In examples the initiators of the invention are used in the polymerization of acrylonitrile, ethyl-acrylate, acrylic acid amide, methyl methacrylate, maleic anhydride and styrene, and maleic anhydride/phthalic anhydride/propanediol polyester with styrene. Other monomers mentioned are vinyl chloride, vinylidene chloride, vinyl methyl ketone, acrolein, methyl acrylate, ethyl methacrylate, acrylamide, methacrylamide, methacrylonitrile, chloroprene and vinyl ethyl ether.
Patent GB-1197217-A (GB)
Title: Improvements in or relating to Earth Drilling Equipment
Inventor: DOLMAN SAMUEL
IPC: E21B19/08
Filed: 1967-11-08
Abstract: 1,197,217. Cradle for rock drills. SCHWARZ MINING & INDUSTRIALS Ltd., and P. M. B. LITTLE, [trading as HOLYWELL ENG. f:0.1., 8 Nov., 1968 [8 Nov., 1967], No. 50852/67.' Heading B4C. [Also in Divisions B3 and El] An earth drilling apparatus comprises a drill head housing 11 supported on at least two pins 12 disposed parallel to the longitudinal axis of the drill head, spring means 14 biasing the housing towards the front end of the pins, and a cradle 13 supporting the housing and pins for movement along a main carriage of the apparatus. The resilient mounting allows drill rods to he inserted and removed without risk of damage to the threads of the rods.
Patent GB-1082665-A (GB)
Title: Method of and apparatus for assembling universal joints
IPC: F16D3/26
Filed: 1964-12-15
Abstract: 1,082,665. Making universal joints. W. SCHAEFFLER & G. SCHAEFFLER, [trading as INDUSTRIEWERK SCHAEFFLER oHG.] Dec. 15, 1964 [Dec. 19, 1963], No. 50994/64. Addition to 1,072,168. Heading B3A. In a modification of the method of assembling universal joints described and claimed in Specification 1,072,168, the noses are formed successively in the bore of the fork in groups so as to avoid possible damage to the fork arms. The reciprocating ram 1, which forms the noses, is indexed between each forming operation by apparatus which comprises a ratchet 4 and pawl 5 actuated by the camming action of a pin 8 in a groove 9. The disc 7 is freely rotatable about the ram 1, but is not movable axially thereto.
Patent GB-1068590-A (GB)
Title: Improvements in or relating to halogenation of phthalocyanines
IPC: C09B47/10
Filed: 1963-12-30
Abstract: Phthalocyanines, especially copper phthalocyanine, are chlorinated and/or brominated under anhydrous conditions in a reaction medium formed from a mixture of phthalic anhydride or halogenated phthalic anhydride and a molybdenum-containing catalyst.  Halogenating agents are chlorine gas and liquid bromine.  The reaction medium may be formed by halogenating phthalic anhydride in the presence of molybdenum pentachloride or in the presence of molybdenum trioxide and sulphur, hydrogen sulphide or a sulphur halide e.g. the monochloride.  After halogenation of the phthalocyanine, the product may be isolated by filtering the molten reaction mixture, by dissolving the mixture in carbon tetrachloride and filtering, or preferably by drowning the reaction mixture in water to hydrolyse and dissolve the medium and filtering off the product.  The aqueous filtrate may be concentrated and the medium recovered for re-use after drying, heating, mixing with additional catalyst and possibly with phthalic anhydride and rehalogenating.ALSO:Chlorinated phthalic anhydride is made by chlorinating phthalic anhydride, or mixtures thereof with chlorinated phthalic anhydride, in the presence of molybdenum pentachloride or in the presence of molybdenum trioxide and sulphur, hydrogen sulphide or a sulphur halide, e.g. the monochloride.