baber/WOPTO huggingface dataset:
Patent GB-1298537-A (GB)
Title: Television receiver
IPC: H04N5/62
Filed: 1971-08-26
Abstract: 1298537 Multiplex radio signalling; automatic gain control PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 26 Aug 1971 [29 Aug 1970] 40091/71 Headings H3T and H4L In a television receiver of the type using the intercarrier system, which includes a control circuit for controlling the degree of sound carrier suppression, the incoming signal is supplied via a R.F. section and I.F. section 1 including a controllable filter 3 which is tuned to the sound carrier frequency, to a detector 9 supplying via video circuit 15 the picture tube 17. The output of detector 9 is also supplied via a filter 21, tuned to the intercarrier frequency, to a limiter 27 supplying truncated sinusoidal voltages in phase opposition to outputs 51, 53. These voltages contain information regarding the input signal amplitude in the slope of the edges between the truncated portions, this information being used to derive a control signal for the filter 3. Outputs 51, 53 are supplied via emitterfollowers 55, 57 to the sound section 67, and are also differentiated (69, 71, 75, 77) to provide a series of positive-going pulses at a frequency equal to twice the intercarrier frequency and whose amplitude depends on the amplitude of the input to the limiter. These pulses are amplified at 73, converted into substantially sinusoidal form at 81 and converted into a direct voltage (83, 85, 87, 88, 89) to control the filter 3 in such manner that the amplitude of the sound carrier at detector 9 is maintained constant.
Patent GB-1097450-A (GB)
Title: Stable solid water-soluble poly-2-vinyl-pyridine-n-oxide compositions and solutions thereof
Inventor: PIEPER GUSTAV
IPC: C08F6/12
Filed: 1966-09-09
Abstract: Poly - 2 - vinylpyridine - N - oxide is prepared by oxidizing poly-2-vinylpyridine of molecular weight about 106 in glacial acetic acid as solvent, with 30% hydrogen peroxide, after which excess hydrogen peroxide is decomposed with palladium and the N-oxide is precipitated by adding sulphuric acid.  The wet precipitate is redissolved in water, dialysed, and spray-dried. The resulting polymer has a molecular weight of about 200,000, and 95% of the nitrogen atoms are oxidized to N-oxide groups; it is for use in pharmaceutical compositions (see Divisions A5-A6).ALSO:Solid water-soluble compositions consisting of poly-2-vinyl pyridine-N-oxide and at least one physiologically acceptable salt are prepared by spray-drying an aqueous solution of these components. The aqueous solution preferably contains 2-20% wt./vol. of the N-oxide and at least 10% (by weight of the N-oxide) of the salt.  The salts may be one or more of calcium chloride, magnesium chloride, soluble sodium phosphates, sodium bicarbonate or preferably sodium or potassium chloride.  The solution may also contain flavouring agents. The solid compositions may be reconstituted with water and administered by injection or inhalation to combat silicosis.
Patent GB-1026880-A (GB)
Title: Method of adjusting the basicity of self-fluxing sintered ores
IPC: C22B1/20
Filed: 1962-10-25
Abstract: The basicity, i.e. the CaO/SiO2 ratio, of a sintered iron ore is controlled automatically by passing a stream of raw material consisting of a mixture of iron ore and fuel past a sampling point at which a sample of the ore is taken and the basicity determined to a location at which limestone is continuously added to the raw material control signals being generated in the process to represent the basicity determined for the sample, the amount of material between the sampling point and the limestone addition point, and the rate at which the raw material is being delivered at the addition point, which signals are fed into a computer which then computes the amount of limestone addition necessary to achieve a desired basicity and initiates a control signal to the limestone adding mechanism so that the correct amount of limestone is added to the raw material which has been sampled so as to achieve the desired basicity in the ore before it is subjected to a subsequent sintering step. The raw material mix may be collected in a reservoir prior to the addition of limestone, when the computer is provided from appropriate sensing devices with signals representing the amount of material in the reservoir when a given sample was taken, and the rate at which material is being withdrawn from the reservoir for use.  With this information, together with a signal representing the basicity determined for the sample, preferably by X-ray fluorescence, the computer is able to control the limestone addition mechanism so that there is added to the raw material stream just that amount of limestone necessary to give a desired basicity to the ore passing at that time through the limestone addition point.  The stream is subsequently passed through a mixer and then sintered.  If desired after mixing, in the limestone, the basicity is again determined, compared with the desired value and any necessary adjustment made to the mixture before it is passed to the sintering step.
Patent GB-1363103-A (GB)
Title: Data synchronisation systems
IPC: H04L7/08
Filed: 1971-08-31
Abstract: 1363103 Digital transmission; synchronizing STANDARD TELEPHONES & CABLES Ltd 22 Aug 1972 [31 Aug 1971] 40550/71 Heading H4P In a system wherein at least one sync. bit is included in each character, the receiver searches for a pattern of sync. bits other than the correct one but no alterations are made to incorrect sync. state until a correct pattern is detected when immediate reversion to error detection condition is made. It is envisaged that if an incorrect state is current there is no advantage to substitute another incorrect state. At the receiver.-Sync. bits are alternately 0's and l's in a succession of characters each of 1 sync. plus 9 information bits which are passed through a 1 bit store and exclusive OR 2 to shift register 3 which is enabled with store 1 at times corresponding to expected arrivals of sync. bits. Assuming the system is in sync., a series of l's is fed to SR3. Loss of sync. causes bits which may not be the inverse of the previous sync. bits, hence one or more 0's are fed into and shifted along SR3, the patterns being recognized by decoders 4, 5 hence SR3 is reset to zero and divide by ten counter is inhibited for 1 bit  period.  When SR3 is next filled with 1's the seventh stage issues a reset signal reverting the circuit to error pattern detection mode.
Patent GB-902398-A (GB)
Title: Dyestuffs of the 2:3-phthaloyl-pyrrocoline series and process for their manufacture
IPC: C08K5/3437
Filed: 1960-11-28
Abstract: Viscose, cellulose ethers and esters, polyamides and polyurethanes are spin-dyed, and solutions and products of acetyl-cellulose and nitro-cellulose, condensation resins such as aminoplasts and phenoplasts and polymerization resins such as polyvinyl chloride, polyethylene and polystyrene and silicone resins, are coloured by dyestuffs of the formula:-  <FORM:0902398/IV(a)/1> where R1 and R2 are each hydrogen or halogen, R3 is hydrogen or alkyl of up to 4 carbon atoms and B is a diphenylene radical free from groups imparting solubility in water.  In Examples (4) polyvinyl chloride, dioctyl phthalate, a pigment of the above formula and, optionally, titanium dioxide are mixed and rolled to a yellowish-red sheet; and (5) an alkyd-melamine bakeable lacquer, titanium dioxide and a pigment of the above formula are ground to obtain a yellowish-red lacquer.ALSO:The invention comprises dyes of the formula: - <FORM:0902398/IV (b)/1> where R1 and R2 are each hydrogen or halogen, R3 is hydrogen or alkyl of up to 4 carbon atoms and B is a diphenylene radical free from groups imparting solubility in water and sulphonation products thereof.  The dyes are made by condensing at an elevated temperature two molecular proportions of a halide of the acid of the formula: -  <FORM:0902398/IV (b)/2> with one molecular proportion of a diphenylene diamine free from groups imparting solubility in water.  The dyes may be sulphonated in a subsequent step.  Examples are given.  The dyestuffs vat-dye cellulose, animal and synthetic fibres such as wool, silk and polyamides and polyesters, are used for pigment printing, spin dyeing and for colouring lacquers and other products (see Groups IV(a) and VIII).  The sulphonated dyes dye animal fibres.  Red, orange-red and violet shades are obtained.
Patent GB-1306489-A (GB)
Title: Wire printer
IPC: B41J2/255
Filed: 1970-04-09
Abstract: 1306489 Selective printing INTERNANATIONAL BUSINESS MACHINES CORP 9 April 1970 [25 April 1969] 40851/72 Divided out of 1305252 Heading B6F  The normal wire printer head with seven printing wires arranged in a vertical line above the print line 38, has additionally two wires 41 and 44 positioned to one side of the vertical line and intermediate the 3rd and 4th and the 6th and 7th wires, and also two further wires 39 and 40 constituting the 8th and 9th wires of the vertical line, which are positioned below the print line. The print head is designed for printing'lower case characters (Fig. 3).
Patent GB-1359015-A (GB)
Title: Apparatus for heating and feeding workpieces to a press
IPC: B21J17/00
Filed: 1971-09-02
Abstract: 1359015 Workpiece feeding apparatus P MAESTRI 2 Sept 1971 [8 Sept 1970] 40949/71 Heading B3H A workpiece feeding apparatus for a press comprises a hopper 1 from which the workpieces issue onto a vibrating plate 4 leading to an ejecting device 8 inside a combustion chamber 14. In one embodiment the device 8 comprises spaced pairs of fingers 10 on a cylinder driven from an electric motor 6. The motor also drives a device 5 which vibrates the plate 4. The inclination of the plate 4 is adjustable by a hand wheel 16. The ejected workpieces fall onto a shoot 18 and are directed to the press. The combustion chamber 14 has a burner unit 15. The ejecting device may have one or two helical threads in place of the fingers 10, Figs. 4-9 (not shown), or comprise a grill (24), Fig. 10 (not shown), with a set of pivoted plates (22) actuated by an electromagnetic device (28) or an hydraulic cylinder. In an final embodiment the device comprises a metal trough (29), Fig. 11 (not shown), with ejecting plungers (31) operated by cams (32) or cylinders (35), Fig. 12 (not shown).
Patent GB-1479054-A (GB)
Title: Corrosion-resistant metal coatings
IPC: C23C22/33
Filed: 1974-09-20
Abstract: 1479054 Chromating metal surfaces PYRENE CHEMICAL SERVICES Ltd 20 Sept 1974 [21 Sept 1973] 40985/74 Heading C7U A chromating composition comprises hexavalent chromium and carbon in dispersed form in which the CrO 3 :C ratio is from 0À02:1 to 1:1. The composition may also include phosphate ions and an organic resin. In an example the composition comprises 1% carbon, 1% acrylic resin, 0À5% phosphate, 0À3% CrO 3 , 0À1% zinc oxide, pH 1À8. In another example the composition includes SiO 2 , the metal surface, e.g. steel, may be pre-heated.
Patent GB-945159-A (GB)
Title: Triazine derivatives
Inventor: MAMALIS PATRICK
IPC: C07D/
Filed: 1960-11-29
Abstract: The invention comprises 4,6-diamino -1,2-dihydro -2,2-dimethyl -1-hydroxy 1,3,5-triacine <FORM:0945159/C2/1> per se and salts thereof and its synthesis by subjecting the compound of formula II or its hydrochloride or hydro bromide. <FORM:0945159/C2/2> wherein R is an arylkyl group of formulae X C6H4CH2- or X C10H6CH2- X being hydrogen or halogen, excluding fluoride, to catalytic hydrogenolysis to replace the group R by hydrogen.  Palladium is the preferred catalyst, and the use of platinum is also exemplified. The salt forming acids include both inorganic and organic ones.  The starting material is prepared in the manner of Specification 831,252. Specification 945,160 also is referred to.
Patent GB-1348722-A (GB)
Title: Ventilator head for ships tanks
IPC: B63J2/10
Filed: 1971-09-02
Abstract: 1348722 Ventilator head MACHINEFABRIEK EN HANDELMAATSCHAPPIJ "WINEL" BV 2 Sept 1971 [2 Sept 1970 3 March 1971] 41054/71 Heading F4J A ventilator head for the vent pipes of ship's tanks comprises two housing chambers 1, 2 arranged one within the other, the outer chamber 1 connectable with a vent pipe by means of a' connecting piece 3. The two chambers have a common partition 5, which has a communicating orifice 6 in the upper part adapted to be closed by a ball float 8 in the inner chamber 2 on the entry of water. The inner chamber 2 has outlets (10) (Fig. 2, not shown), with coarse mesh grids mounted on three sides of the ventilator head. A hood 7 of flame-arresting gauze is provided in the chamber 1. In further embodiments (not shown) a plurality of inner chambers are provided arranged around the perimeter of the outer chamber.
Patent GB-1369000-A (GB)
Title: Electrowinning of metals and apparatus therefor
IPC: C25C7/02
Filed: 1971-09-03
Abstract: 1369000 Apparatus for electro-winning INTERNATIONAL NICKEL CO OF CANADA Ltd 3 Sept 1971 [4 Sept 1970] 41250/71 Heading C7B In the electro-deposition of non-ferrous metal e.g. copper upon a vertical sheet cathode positioned parallel to an insoluble sheet anode, the anode is so constructed or shrouded that the resistance of the current path through the anode electrolyte and cathode is greater at the bottom of the electrodes than at the top thereof (in spite of the greater resistance of the electrolyte at the top owing to gas bubbles evolved at the anode and rising through the electrolyte), thus permitting use of a higher average current density, without exceeding the cathode current density limit for smooth plating, then would be possible using a uniform unshrouded anode. As shown cells formed in a concrete tank 12 are lined with Pb or PVC 14 and have alternate anodes 20 and cathodes 22 suspended therein, the cells being electrically connected in series. To obtain the greater resistance path via the bottom of the electrodes, the anodes e.g. of Pb-Sn alloy, may be shaped as shown, may be uniformly shaped but have the lower part thereof perforated Fig.3 (not shown) or partially masked with insulating strips Fig.4 (not shown) may be formed throughout of Ti (high electrical resistance) expanded mesh coated with a Pt group metal Fig.5 (not shown) or the end may extend into a U-shaped perforated shrouding diaphragm e.g. of PVC of polyethylene Fig.6 (not shown). A surfactant, e.g. dodecylated oxydibenzene disulphonic acid or Na salt or Na alkyl (carboxy) sulphosuccinate may be present in the bath. Copper may be deposited from a bath also containing Ni, Fe and As.
Patent GB-1130202-A (GB)
Title: Apparatus for and method of supporting and transporting sheet material
Inventor: WILLIAMS ALBERT HENRY
IPC: B65H3/14
Filed: 1965-09-29
Abstract: 1,130,202. Feeding sheets. CALEDEX MACHINE CO. Ltd. 28 Dec., 1966 [29 Sept., 1965], No. 41298/65. Heading B6B. Sheet material (e.g. paper, cardboard, strawboard, and hard-board) is supported and transported by disposing the surface of a movable transporter 12 in close proximity to the surface of the material such that there is a gap between the surfaces, blowing divergent air streams through the gap from at least one blowing orifice 10 in the transporter and thereby creating a reduced pressure at a zone between the streams, whereat the material is attracted towards the transporter, reducing or terminating the blowing operation and applying to the zone an air suction through at least one suction orifice 15 in the transporter, thereby holding the sheet material to the transporter and moving the transporter to transport the held sheet. The blowing orifice may be annular, a slot or a series of holes. Separators.-Sheets 17<SP>1</SP> are separated from file 17 by a transporter 12 (constructed as set out above) which is slidably guided to reciprocate along guide bars 28. Reciprocation is brought about by lever 29 having a follower 32 engaged in cam track 33 of a continuously rotating cam assembly 34 driven by motor 35 which also drives air pump 36. The output of pump 36 is connected by line 37 to valve 41 and then to blowing orifice 10 by line 38. The intake of pump 36 is connected to valve 41 and then by line 40 to the stem 14 of transporter 12. Valve plunger 43 reciprocated by lever 44 which follows cam 34 such that when transporter 12 is at the delivery end of its travel the intake and output sides of pump 36 are connected to the atmosphere by ports 48. At the other extremity of travel of transporter 12 parts 48 are sealed to render the air blast and suction orifices operative. Sheet-forwarders. Transporter 12 feeds the sheet into the nip of rollers 49 and 50 driven from motor 35. Pile tables.-Plate 27 on which the pile rests is progressively raised through the oscillation of lever 44 which reciprocates bar 53 thus stepping round the ratchet wheel 56 which wheel is connected by a worm and worm-wheel mechanism 65 and chain drive 57 to the shaft 18. Rotation of shaft 18 causes sprockets 21 and 22 to move endless chains 25 and 26 which chains carry brackets 26 on which is mounted plate 27. The raising of plate 27 is controlled by micro switch 59 which, when closed through feeler 58 no longer engaging the top sheet of the pile, operates solenoid 60 to lift detent 51. and allow bar 53 to be reciprocated by lever 44. Sheet guides.-Edge guide 63 is provided at the rear face of the pile and is adjustable horizontally.
Patent GB-1245578-A (GB)
Title: A digital measuring instrument including an intergrating analogue-to-digital converter with a clock oscillator and apparatus for phase-locking the operating frequency of the oscillator to a reference frequency
Inventor: HOWSE BRIAN EDWARD
IPC: H03K5/26
Filed: 1967-09-11
Abstract: 1,245,578. Automatic phase control. SOLARTRON ELECTRONIC GROUP Ltd. 10 Sept.,  1968 [11 Sept., 1967], No. 41428/67. Heading H3A. An analogue/digital converter in which a clock oscillator phase locked to a reference frequency comprises a discriminator responsive to a reference signal to sense periodic deviations of the oscillator frequency from a predetermined multiple of the reference frequency, and means responsive to such sensing to reduce the deviation in a stepwise manner. A mains frequency reference input is squared in unit 11 and divided by two in bi-stable 12 to produce on line 12a a 25 c/s. signal, the positive transitions of which set bi-stable 13 and open gate 14 to pass 1 Mc/s. pulses from oscillator 10 to counter 15. After a a count of 19,999 counter 15 produces an output which resets bi-stable 13. If the oscillator frequency is too high, bi-stable 13 is reset before the signal on line 12a makes its next negative transition, to produce a "1" on line 13b and a "0" on line 13a. When the negative transition occurs, this triggers bi-stable 17 to the state in which Q = 0 and Q = 1. During the 10 ms. preceding a positive transition on line 12a, gate 29 is opened to produce a "1" at its output. During the time that 12a and 13b are both "1", gate 32 passes pulses from oscillation 10 to counters 33, 30 and if more than two pulses are passed, 30 switches to "1". The outputs from units 29, 18, 30 are fed to AND gate 20 and coincident "1's" on all three inputs produce a positive signal on line 21. This is fed to diode pump 23 and integrator 24 to produce a signal to slow down the oscillator. If the oscillator frequency is too low, bistable 13 is not reset until after the signal on line 12a makes its next negative transition. When this transition occurs there is thus still a "1" on 13a and a "0" on 13b, and bi-stable 17 is triggered, to the state in which Q = 1 and Q = 0. In this case, during the time that a "1" exists at the outputs of 29, 30 the gate 19 is opened and a negative signal is produced on line 22. This is fed to diode pump 26 and integrator 24 to produce a signal to speed up the oscillator. Units 30 ... 33 provide a dead zone, no correction being applied unless 33, 30 count an error of at least plus or minus two cycles. Units 30 ... 33 may be omitted, and 19,20 replaced by two input gates.
Patent GB-1103601-A (GB)
Title: Improvements in prepayment time switches or meters
Inventor: DRANSFIELD DESMOND
IPC: G07F15/12
Filed: 1963-10-21
Abstract: 1,103,601. Prepayment time switches. UNITED GAS INDUSTRIES Ltd. 8 Dec., 1964 [21 Oct., 1963], No. 41444/63. Heading G4V. The timing element of a prepayment time switch is controlled by a heat-responsive switch energized by a current which passes through both the prepayment control switch and a local switch of the apparatus involved, e.g. a television set. The operating time bought may thus be used in discrete parts. In Fig. 1, the timing unit 1 is connected to the usual mains supply by plug 10, and to a television set 2 by plug 11 and socket 12. The casings are earthed by leads 13 and 14, leads 17 and 18 are neutral, and the live lead 15 is connected to a synchronous electric motor 8 through prepayment switch 3, and to the television set circuits 16 and the switch heater 21 through switch 3 and local switch 9. Operation of a conventional prepayment receiver 5 moves worm 4 to the right, closing switch 3. While switch 9 is closed to use the television set, heater 21 closes switch 22, so that motor 8 moves the worm to the left, to open switch 3 when the aggregate period of use corresponds to the prepayment made. The heater 21 may close switch 22 by a bi-metallic element, thermosensitive magnetic material, fluid expansion chamber secured to a movable contact, or by expansion of mercury to bridge fixed contacts. Instead of a synchronous motor, pulses from a generator may be fed through a gate controlled by the switch 21, the switch 3 being closed and held closed by a detent when prepayment is made, the detent being removed when credit is exhausted. Alternatively, a solenoid operated brake may control a clockwork escapement element.
Patent GB-1357930-A (GB)
Title: Kettle handles and like members and to a methoj of making same
IPC: B21D53/38
Filed: 1971-09-07
Abstract: 1357930 Handles ABAL PRESSINGS Ltd 6 Dec 1972 [7 Sept 1971] 41601/71 Heading A4A [Also in Division B3] A method of making an elongate member having at least a portion 1, Fig.1, which is of hollow transverse cross-section and is bent longtitudinally so that a longitudinally-extending axis 3, of the hollow portion is curved and lies within a plane comprises bending a length of flat metal strip stock to the hollow transverse crosssectional shape, and bending the hollow length longitudinally to the required curve without internal support and collapse of the hollow crosssection. The member is preferably a kettle handle which is formed by bending metal strip progressively between a succession of shaped rolls. The shaped strip is then severed into lengths and the opposite end portions of each length are flattened and pierced to form portions 2 which may receive rivets. The lengths are then bent to form a substantially U-shaped member. Collapse of the member during bending is prevented by the pressure of one or two supporting walls 9, Fig.2, which space apart the peripheral wall 7 and base walls 8. Lips 10 may be provided on the supporting walls 9. The member may include portions of varying curvature and also rectilinear portions.