baber/WOPTO huggingface dataset:
Patent GB-1284361-A (GB)
Title: Cooking utensil
Inventor: NIELSEN ERIK
IPC: A47J36/06
Filed: 1970-02-02
Abstract: 1284361 Cooking pots K K K KRÏYER 19 April 1971 [2 Feb 1970 20 Nov 1970] 4890/70 and 55294/70 Heading A4A [Also in Division G1] A cooking pot 1 includes an indicator responsive to the total amount of heat supplied to the pot, and a scale calibrated to show different amounts of heat supplied, to provide a measure of the progress of cooking of a food item 2. In Fig. 1, a liquid expansion thermometer 6 is mounted on the handle of the pot lid 3 with its bulb 4 surrounded by a block of insulating material 5 which retards the response of the thermometer to the pot temperature so that the thermometer reading is a function of elapsed time and temperature, i.e. of the amount of heat received by the pot. The upper surface of bulb 4 may be silvered to reduce radiant heat loss. The bore of the thermometer tube may be tapered away from the bulb. In Fig. 3 a compound which changes colour with increasing temperature is provided as a strip 8 on a wedge 9 of insulating material in the lid 3, the colour change progressing along the strip during cooking. A scale 10 extends alongside the strip 8. In Fig. 5 a transparent plastics handle 11 on the lid 3 contains a rod 13 of low heat conductivity, coated with a layer 12 of colour-change material, one end of the rod being exposed to the pot interior. In a modification Figs.7, 8 (not shown) a layer of colour change crystals is integrally moulded into a translucent handle shaped to provide a wedgeshaped insulating section between the layer and the lid. In Fig. 9, a handle 23 contains an angled tube 24 having a bulb 25 exposed to the pot interior and an inclined limb extending along the handle. If the liquid 26, e.g. methanol, in the tube is all in the bulb 25 at the start of cooking, the amount distilled over into the inclined limb is a measure of the total heat supplied. A photo-electrically controlled alarm may be combined with the device.
Patent GB-1307100-A (GB)
Title: Erythromycyl b amine
Inventor: GERZON K
IPC: C07H17/08
Filed: 1970-11-20
Abstract: 1307100 Erythromycyl B amine ELI LILLY & CO 20 Nov 1970 [21 Nov 1969] 55355/70 Heading C2A [Also in Division A5] Erythromycyl B amine of Formula III is prepared by hydrogenation of the oxime of erythromycin B, the hydrogenation being suitably carried out by the use of a noble metal catalyst, either as free metal or the oxide. Suitable hydrogen pressures are 500-2000 p.s.i. Metals which are useful as catalysts include platinum, palladium, rhodium and ruthenium. The amine may be used to control the population of Staphylococci or Streptococci present on equipment, furnishings, walls and floors in dental and medical offices and in hospitals. Erythromycyl B amine may also be used to control infections in mammals by oral administration, the antibiotic then being used in conjunction with pharmaceutically acceptable carriers. The oxime is prepared by reaction of erythromycin B with hydroxylamine hydrochloride.
Patent GB-1416198-A (GB)
Title: Sheeter detecting devices
IPC: B65H7/14
Filed: 1972-11-30
Abstract: 1416198 Feeding sheets RICOH KK 30 Nov 1972 [3 Dec 1971] 55399/72 Heading B8R [Also in Division G1] In a sheet presence detection device light from a source 34 on one side of the sheet's path is directed by a lens 34a on to at least one reflective surface 28 and the reflected light is received by a photosensitive device 35 after having traversed the sheet's 29 path at least twice, the beam paths being delimited so that when a sheet 29 is present the light received by the photosensitive device 25 is interrupted or considerably reduced (depending upon the sheets transmitting reflecting properties). A further source 38 and detector 39 together with a slit aperture 5 may be used, the light being reflected off the sheet 29 to detect the presence of the sheet and read any information carried by the sheet. In a further embodiment (Fig. 5, not shown) two reflectors are used, the light beam crossing the sheet path four times.
Patent GB-1436859-A (GB)
Title: Glazing composition
IPC: C03C8/02
Filed: 1973-12-01
Abstract: 1436859 Ceramic glaze BRITISH TITAN Ltd 5 Nov 1974 [1 Dec 1973] 55803/73 Heading C1M A ceramic glaze composition comprises a titanium containing glass frit and crystalline silica (e.g. quartz). Preferably the frit comprises in mol per cent SiO 2  25-55; TiO 2  7-20; alkali metal (K and Na exemplified) 10-20; and Sr, Ca, or Mg 5-15. The frit may also contain B 2 O 3  3-10 and Al 2 O 3  5-15. The glaze composition may also include a quantity of pipe clay. The glaze is fired at a temperature between 950 and 1200 C. for 30 minutes to 6 hours.
Patent GB-1485799-A (GB)
Title: Methods of encoding and storing data items
IPC: G06T17/05
Filed: 1974-12-27
Abstract: 1485799 Determining spatial relationships IBM UNITED KINGDOM Ltd 27 Dec 1974 55910/74 Heading G4A Spatial relationships between areas, lines and points may be determined by encoding the locations of the areas, lines and points from a map 10, Fig. 1, into data items consisting of Cartesian co-ordinate references of the locations by means of a digitizer 11, the data items being entered, together with associated information (such as addresses of buildings along a road) from blocks 12, 13 into a general purpose digital computer 15, the data items being encoded into bit strings which are stored in a data base 16, each bit string being representative of a location on the map. The invention permits digital comparisons to be made between the stored bit strings which enable the following problems to be solved: (a) does a point lie on a line or in an area, (b) does a line cross another line or pass through an area, or (c) does an area include a region within itself which does not occur in another area? The encoding performed by the digital computer 15 is carried out by successively dividing the map into quadrants, Fig. 3A, until the required degree of accuracy has been reached, a two-bit code being generated for each quadrant, which code is (a) 00 if none of the quadrant is shared, (b) 01 if part of the quadrant is shared, or (c) 10 if all of the quadrant is shared with an area, line or point. A bit string is generated by starting at the top left hand corner of block 30 and, proceeding clockwise, writing down the two-bit code for each quadrant in the block. Thus for block 30 the code is 01010101. Each quadrant for which a code of 01 has been generated is subdivided, as in block 31, and the codes written down for these subdivisions in the same manner. Thus for block 31 the code is 01010101000001011001010101010100. Quadrants for which the code is 00 or 10 generate a similar code if subdivided and hence are not considered again. These encoding steps are given in the flowcharts of Figs. 4A, 4B, 4C and 4D (not shown). The first few bits of each bit string may be processed to obtain a location for the bit string in the data base 16, so that objects close together on the map have their respective bit strings stored in physically near locations in the data base, in order to reduce processing time. The stored bit strings may be processed for display on a domestic television receiver. An error checking procedure given in Fig. 5 (not shown) may check each bit string for error conditions, e.g. a generated two-bit code of 11. Applications of the invention to calculations of the numerical area or centre of gravity of an encoded area are described. In modifications, equilateral triangular regions instead of quadrants or a code of more than two bits for each quadrant may be used.
Patent GB-1333771-A (GB)
Title: Light-sensitive materials
IPC: G03C1/81
Filed: 1970-11-25
Abstract: 1333771 Naphthalene sulphonic acid derivatives RICOH KK 25 Nov 1970 [17 Dec 1969] 55951/70 Heading C2C [Also in Division G2] Simple and mixed condensates of naphthalene sulphonic acids and formaldehyde of formula wherein R 1 , R 2  and R 3  are the same or different and are hydrogen or alkyl with 1 to 5 carbon atoms, X is sodium or potassium and n is 0 to 8 are prepared by adding formaldehyde to an acidic solution of one or two naphthalene sulphonic acids at 50 to 60 C., stirring for 8 hours and then neutralizing with caustic soda or caustic potash. Preparations using butylnaphthalene sulphonic acid alone and mixed with propylnaphthalene sulphonic acid and with naphthalene sulphonic acid are given.
Patent GB-1271049-A (GB)
Title: Frequency dicriminator circuit including piezoelectric resonator providing coupled resonant circuit
Inventor: LIVENICK CORWIN EDWARD
IPC: H03D3/16
Filed: 1970-11-26
Abstract: 1,271,049. Frequency discriminators. MOTOROLA Inc. 26 Nov., 1970 [15 Dec., 1969], No. 56281/70. Heading H3A. A frequency discriminator comprises a piezoelectric element 10 having two pairs of plates 12, 13; 16, 17 forming part of first and second tuned circuits tuned to the same centre frequency of an angle modulated carrier wave and coupled via the element 10 to produce signals of opposite phase at 16, 17, the second tuned circuit being also coupled e.g. via a capacitor 20 to the input circuit to produce a signal nearly in phase quadrature for combination with the above signals (Fig. 3, not shown), and the combined signals applied to a detector circuit 25, 28 to develop a demodulated output e.g. across a capacitor 30. A variable inductor 18 is provided for tuning out the self-capacitance of element 10 and for precise control of the resonant frequency. The capacitor 19 may be replaced by two capacitors (39, 40, Fig. 2) to the junction of which the input circuit is connected. Resistors 26, 29 provided for the signal return path may be connected in parallel or cross-wise across the diodes 25, 28.
Patent GB-1161680-A (GB)
Title: Crop Thinning Machine
IPC: A01B41/06
Filed: 1967-12-12
Abstract: 1,161,680. Transistor switching circuits. DEERE & CO. 12 Dec., 1967 [12 Dec., 1966], No. 56452/67. Heading H3T. [Also in Division A1] In a crop-thinning machine (see Division A1) a probe 258 completes a circuit whenever it contacts a plant to turn on transistors Q 1 , Q 2  and provide an output on line 411 which is fed to a dead-time unit 420, comprising monostable circuit Q 3 , Q 4 , the dead-time being determined by resistors R T  and switch S. The signal on 411 switches the monostable circuit to its unstable state, to provide a feedback signal on line 421 which inhibits further actuation of circuit 410 during the dead-time. At the same time an output on line 412 switches bi-stable circuit 440 to energize the trigger circuit 450, thus firing triac Q 9  to energize a solenoid valve.
Patent GB-1409509-A (GB)
Title: Polycarbonate moulding compositions
IPC: C08L25/08
Filed: 1973-12-06
Abstract: 1409509 Aromatic polycarbonate moulding compositions BAYER AG 6 Dec 1973 [9 June 1973 25 Oct 1973] 56486/73 Headings C3R and C3P Thermoplastic moulding compositions are composed, by wt. of (1) 70-30% thermoplastic aromatic polycarbonate and (2) 30-70% of a mixture of (2À1)10-40 parts butadiene polymer containing #30% butadiene and (2À2) 90-60 parts of a methyl methacrylate homopolymer and/or a copolymer of (2.2.1) 95-50 parts styrene, α-methylstyrene, and/or methyl methacrylate, and (2.2.2) 5-50 parts acrylonitrile and/or methacrylonitrile, the composition containing #5% butadiene polymer (2.1). The polycarbonate may have M.W. 10,000-60,000. It may be a mixture of polycarbonate made from a halogen-free polyphenol and polycarbonate of formula where n = 15-200, X = C 1-5  alkylene or alkylidene, C 5-15  cycloalkylene or cycloalkylidene, a single bond, O, or and Hal = Cl or Br. The polycarbonates may also be branched, by replacing 0À2-2% moles of the dihydroxy monomer by, e.g. tri- or tetrahydroxy monomers. Butadiene polymer (2.1) may be a co-polymer of 70-90% butadiene and 10-30% styrene, of 30-95% butadiene and 70-5% butyl acrylate, or of 60-80% butadiene and 40-20% acrylonitrile; or it may be a ter- or quater-polymer of the above ingredients together with up to 10% methacrylic acid and/or divinylbenzene. The composition may be formed by mixing a latex of (2.1) with a latex of (2.2) and drying the precipitated solids, and then mixing these with the polycarbonate, e.g. in a screw extruder, e.g. at 200-300 C. The butadiene polymer may form a network in the combined resin matrix.
Patent GB-1292650-A (GB)
Title: A numeral setting mechanism for a calculating machine
IPC: G06C7/10
Filed: 1969-11-25
Abstract: 1292650 Setting mechanism in calculating machine CITIZEN WATCH CO Ltd 25 Nov 1969 [8 Jan 1969] 57669/69 Heading G4B [Also in Division B6] In a setting mechanism of a calculating machine, for transferring numerals from a keyboard to a pin carriage 10, the initial depression of a key 3 interengages the key with an associated setting bar 4 to set the pin carriage, and as the key 3 is depressed even further, the interengagement is broken, and the pin carriage 10 is shifted one step. As described, the numeral keys 3 are pivoted to a keyboard plate 1. On depression of a key 3, a depending projection 3b engages a slot 4b (or a second projection, not further disclosed) in an associated setting bar 4, to slide the bar to the right and set an appropriate pin 11 in the pin carriage 10. A shifting bar 8 is carried with the setting bar 4 by a projection 4c. On continued downward movement of the key 3 to its lowest position, the key stem 3a abuts a U-shaped slot 4a in the cranked end of setting bar 4, so pivoting the bar 4 to release the key projection 3b from the setting bar slot 4b. The setting bar 4 and shifting bar 8 are then returned to the left by springs 5, 9 respectively while the pin carriage 10 is shifted one step (shifting mechanism not further disclosed). On release of the key 3, the key and setting bar 4 are mutually repositioned as illustrated in Fig. 1 by connecting spring 5. In an alternative embodiment, the numeral key comprises a first part capable of rectilinear movement and a second, pivoted part (not further disclosed).
Patent GB-1285806-A (GB)
Title: Improvements relating to the manufacture of tinned plates
IPC: C23C22/28
Filed: 1970-12-07
Abstract: 1285806 Coated tinned plate NIPPON KOKAN KK 7 Dec 1970 [27 Dec 1969] 57959/70 Heading B2E [Also in Division C7] Tinned plate is coated by subjecting it to a chemical or electrochemical treatment using a solution containing chromic acid or a chromate, thereafter applying an aqueous solution of an itaconic acid/acrylonitrile copolymer and chromic acid or a chromate and drying the coated plate. The treatment step may be effected electrolytically in aqueous potassium bichromate solution or by spraying of aqueous chromic acid. The copolymer solution is applied by dipping or spraying at 50-80‹C.
Patent GB-1371338-A (GB)
Title: Loudspeakers
IPC: H04R9/06
Filed: 1971-12-09
Abstract: 1371338 Moving coil loudspeakers EMI Ltd 9 Dec 1971 [9 Dec 1970] 58373/70 Heading H4J A moving coil loudspeaker includes a magnet 1, a central pole piece 3 and an apertured plate member 4, the inner periphery of which is bent to form a lip 5. Between the inside circumference of the lip 5 and the pole piece 3 is a cylindrical air gap for the voice coil 8. The coil 8 is carried by a diaphragm 9 mounted on a centrally apertured support 10 which fits the outside of the lip. The ceramic magnet 1 and pole piece 3 are mounted on a back plate 2. The front plate 4 having the lip 5 is formed by pressing or turning. It is aligned in a jig with the pole piece 3 to provide an accurate gap 12 and the plate 4 is then secured to the magnet 1, e.g. by adhesive. The diaphragm 9 has a fixing portion 13 at its periphery and this secures the diaphragm 9 and coil 8 to the support washer 10. To effect this the coil 8 and diaphragm 9 are centralized relative to washer 10 using a jig and are then secured to washer 10 by the fixing portion 13. The washer 10 is a push fit over the lip 5. Washer 10 and plate 4 are spaced from one another by a spacer washer 11. Four screws 15, 16, etc. pass through a moulded front cover 14, washers 10, 11 and into tapped spigots 17, 18, etc., attached to plate 4. If desired, the pole piece 3 may have a constant diameter throughout its length. The spigots 17, 18, etc. may be integrally formed with front plate 4, or formed separately and attached thereto. Alternatively the spigots may be dispensed with and cooperate with tapped holes in plate 4. The spigots, if provided, may be used to achieve the required spacing of washer 10 from plate 4 by the provision of steps or ridges, the washer 11 then being omitted.
Patent GB-1175074-A (GB)
Title: A Waterproof Band for Fixing to a Submerged Surface
IPC: B63B43/16
Filed: 1966-12-30
Abstract: 1,175,074. Apparatus for cutting and joining floating hulls. MITSUBISHI JUKOGYO K.K. 30 Dec., 1966 [27 June, 1966(2); 30 July, 1966 (2); 4 Aug., 1966], No. 58479/66. Heading B7S. In a method of fixing a waterproof rubber band 16 for use in the cutting of the hull 1 of an afloat ship, holes 3 are bored in the underwater part of shell plates 2, fixing members 5 are fitted in the holes from inside the ship so as to stick out and the waterproof band 16 is water. tightly fixed to the hull by support pieces 8 screwed on the protrusive fixing members. The waterproof band 16 is kept in U-shaped form by steel frames 17 and a connecting piece 19 is provided between the support pieces 8. The watertightly holding part 26 of the band 16 is pressed against the hull and various forms of sealing along holding part 26 are described. After removal of water from it, the now watertight space 10 inside the band 16 is used as a watertight space for the cutting (or joining) operation at the portion A.
Patent GB-1340040-A (GB)
Title: Method for controlling a switching transistor and a circuit for  performing the method
IPC: H03K4/48
Filed: 1970-12-14
Abstract: 1340040 Transistor pulse generating circuits S N J LINNMAN 14 Dec 1970 [22 Dec 1969] 59261/70 Heading H3T A pulse generator includes a transistor Tr1 whose turn off time is reduced by sensing when it leaves saturation and using a feedback circuit C1, D1, Tr2 to accelerate the turn off, the feedback circuit being ineffective while Trl is turning on. A pulse from a source St turns on Tr1, the pulse having a falling voltage value so that the base current (Ib, Fig. 2, not shown) of Tr1 falls until Tr1 comes out of saturation. The capacitor C1 senses the collector voltage change of Tr1 and causes Tr2 to turn on, thereby terminating the pulse from St. The St pulse may be rectangular, alternatively, and the collector load of Tr1 be such as to generate a sawtooth output for a TV line oscillator, thereby bringing Tr1 out of saturation by a different process. The pulse output of Tr1 therefore depends in duration upon the input pulse amplitude from St which can be varied. Diode D1 renders the feedback ineffective during switch-on of Tr1.
Patent GB-1381735-A (GB)
Title: Adhesive composition
IPC: C08J7/043
Filed: 1971-12-31
Abstract: 1381735 Laminating plastics with adhesive REICHHOLD - ALBERT CHEMIE AG 31 Dec 1971 [31 Dec 1970] 60883/71 Heading B5N [Also in Divisions C3 and B2] A polypropylene or polyethylene terephthalate substrate coated with a first adhesive layer comprising a mixture of a cyclized rubber containing phenol groups, a colophony-phenol adduct resin, chlorinated paraffin and organic solvent, and then with a further adhesive layer comprising a fluid epoxy resin based on epichlorohydrin and diphenylolpropane, organic solvent, trioxan, dipropylene-triamine and diaminocyclohexane is bonded to a further adhesive layer of a similar substrate, optionally by heating.
Patent GB-1248459-A (GB)
Title: Sulphur dioxide recovery
Inventor: DELZENNE AMAND
IPC: C01B17/60
Filed: 1968-12-24
Abstract: 1,248,459. Sulphur dioxide recovery. UGINE KUHLMANN, and WEIRITAM. 24 Dec., 1968 [28 Dec., 1967; 4 July, 1968], No. 61395/68. Heading C1A. Sulphur dioxide is recovered from residual gas or smoke containing 1000-5000 p.p.m. by volume of SO 2  by a process comprising the following steps: (1) prewashing the residual gas or smoke with an aqueous sulphite lye; (2) absorbing the SO 2  contained in the prewashed gas in an aqueous solution containing ammonium sulphite and ammonium bisulphite having a temperature of 20-55 C. and a total initial concentration of ammonium salts of 300- 500 g./1., the SO 2 /NH 3  molar ratio in the solution being maintained throughout absorption at 0À7-1 and obtaining a solution containing ammonium bisulphite; (3) desorbing the SO 2  from the aqueous solution produced in step (2) by heating the solution from an initial temperature of at least 70 C. at 650-700 mm. Hg pressure and obtaining an aqueous solution having an SO 2 /NH 3  ratio such that it can be recycled to the absorption step. The aqueous lye used for washing the residual gas or smoke is preferably recycled ammonium bisulphite from step (2). Alternatively an aqueous solution of sodium sulphate and bisulphate can be used. In an embodiment of the invention, if the gases contain significant quantities of nitrogen oxides, e.g. 50 p.p.m. and greater the washing step is carried out with a solution containing ammonium sulphite and/or bisulphite or the corresponding sodium salts. In a preferred embodiment of the process a fraction of solution is withdrawn regularly from the SO 2  absorption-desorption cycle and used as the aqueous lye for the pre-washing step.
Patent GB-1255378-A (GB)
Title: Method for the isomerisation of paraffins
IPC: C10G45/60
Filed: 1969-12-22
Abstract: 1,255,378. Isomerizing paraffins. SUN OIL CO. 22 Dec., 1969 [24 Dec., 1968], No. 62264/69. Heading C5E. C 7  and higher paraffins are isomerized to increase their branching by contact with AlCl 3  in the presence of an inert halogenated hydrocarbon solvent and hydrogen chloride, and in the substantial absence of compounds which form complexes with AlCl 3 , under reaction conditions which limit the wt. per cent conversion per pass of feed to an amount which avoids cracking of the feed. The permissible conversion varies according to the feed. Suitable solvents are methylene chloride and symmetrical tetrachloroethane. A cracking suppressor may be present, e.g. methyl cyclopentane, methyl cyclohexane, dimethyl cyclohexane or decalin. In examples, the feeds are 3-methylheptane, tetracosane, two different defined waxes, total slack wax, and cerols, i.e. a wax filtrate obtained from a heavy distillate slack wax fraction. The waxes are isomerized to high quality lube oils having high V.I. and low pour point.