baber/WOPTO huggingface dataset:
Patent GB-1022699-A (GB)
Title: Improvements in or relating to electric gating circuits
Inventor: CRUMP ARTHUR EDGAR
IPC: H03K19/082
Filed: 1963-11-27
Abstract: 1,022,699. Transistor comparators; carrier frequency systems. GENERAL ELECTRIC CO. Ltd. Nov. 12, 1964 [Nov. 27, 1963], No. 46866/63. Headings H3T and H4R. A transistor comparator for two two-level signals is arranged so that if the signals change between levels simultaneously from a condition in which the comparator output is the same before and after the change, no changeover of output signal occurs during the change. In Fig. 1, the two signals are applied to respective bases of a common emitter pair and a relay is connected to one collector circuit. The relay is operated only if a signal is present at the base of the one transistor and not at the base of the other and capacitors are connected to the bases to provide time constants such that the relay is not operated during the period when both signals are coming on together or going off together. The input signals may be derived via Schmitt triggers from main and standby carrier generators of a carrier telephone system and the relay may connect the standby in circuit when the main generator fails.
Patent GB-1306897-A (GB)
Title: Process and apparatus for treating textile materials
IPC: D06B23/16
Filed: 1971-10-08
Abstract: 1306897 Textile treating apparatus BURLINGTON INDUSTRIES Inc 8 Oct 1971 [28 Oct 1970] 46982/71 Addition to 1246806 Heading D1L The process and apparatus of the parent Specification 1246806 are modified to enable vacuum degassed textile webs to be treated with a liquid treating agent at superatmospheric pressure. As illustrated in Fig. 1 textile material 10' is continuously fed through sealing inlet 29' to vacuum degassing chamber 4' maintained at a pressure of not more than 6 inches of mercury and then passes through sealing outlet 30' directly to contact the treating liquid 28 maintained at superatmospheric pressure in treating chamber 26'. The web passes round roller 54 and up through the impregnating liquid to be discharged through sealing rollers 50. Chamber 4' is exacuated via take-off conduit 19 and treating chamber 26' is pressurised, preferably to between 40 and 50 p.s.i. through inlet 56. In a further modification (Fig. 2) the degassing chamber 4" and liquid treatment chamber 26" are contained in a larger fluid-tight tank 60 which is pressurised through inlets 64 with a gaseous treating agent (e.g. steam) and may also contain chemical treatment liquid 68 in tank 70. This apparatus enables vacuum degassing, pressurised liquid treatment, gaseous treatment, and further chemical treatment to be carried out successively on textile web 10" before it exits through sealing outlet 50'.
Patent GB-1447791-A (GB)
Title: Internal combustion engines having electrically controlled  petrol injection
IPC: F02P5/04
Filed: 1973-10-16
Abstract: 1447791 Regulating I C engine fuel injection and ignition ROBERT BOSCH GmbH 16 Oct 1973 [17 Oct 1972] 48106/73 Heading F1B [Also in Division G3] An internal combustion engine, having an electrically controlled petrol injection system and a device for actuating a control valve by-passing the throttle valve during over-run and a timing device actuable with the control valve for retarding the ignition by between 15 degrees to 25 degrees A.T.D.C. As shown, a by-pass valve 50 is controlled by a device 60 and the ignition initially retarded by 10-20 degrees by rotating a timing plate 51 by a device 62. The devices 60, 62 are electromagnetically actuated directly, or through a pressure servo responsive to inlet manifold depression. The devices 60, 62 are controlled by an electrical control system responsive to engine parameters, such as temperature and pressure and/or a signal from a switch actuated by a gear selector.
Patent GB-1356338-A (GB)
Title: Aeration apparatus
IPC: C02F3/16
Filed: 1971-10-18
Abstract: 1356338 Surface aerators KEENE CORP 18 Oct 1971 [19 Oct 1970] 48345/71 Heading B1C A surface aerator for treating waste water comprises a float 10 supporting a motor-driven impeller-deflector 20, and container means, such as upstanding flanges 30, 32 having outlet notches 34, on the upper surface of the float so as to permit in operation water to collect in the container means as it is pumped upwardly and outwardly and to serve as ballast for lowering the aerator and to permit drainage of the container means when the impeller is not in operation and thereby permit the aerator to rise higher in the water. The impellerdeflector may be provided with part-helical deflectors on its periphery and repelling vanes on its upper surface. The float 10 may be made of glass fibre reinforced material and filled with polyurethane foam 14.
Patent GB-1128665-A (GB)
Title: Fluid spacing device, more particularly for recording apparatus
IPC: F15B5/00
Filed: 1965-11-15
Abstract: 1,128,665. Bearings. BENDIX CORP. 15 Nov., 1965 [23 Nov., 1964], No. 48434/65. Heading F2A. [Also in Division G4] A fluid device for spacing two members comprises fluid pressure means urging one member 7 towards the other member 8 and further pressure fluid means urging the members apart, the means having the same fluid source. Head 7 is mounted by steel strips 21 on support 14, near rotating disc 8. Fluid from line 24 extends piston 12 from support 14 to urge head 7 towards disc 8. Fluid from the same source passes via valve 32, flexible conduit 36, and passages (17a, 17d, Fig. 2, not shown) in the head to the space between head and disc. The space between head and disc is determined by adjustment of valve 32. Passages (17a, 17d) open from a partly frusto-conical surface of a member (38, Fig. 2, not shown) which also contains a conductive element 40. Disc 8 contains a commutator bar 41, an electric signal being transmitted between element 40 and bar 41 when they are opposite.
Patent GB-1203226-A (GB)
Title: Improvements in or relating to spraying or showering apparatus
Inventor: THOMAS DAVID WILLIAM
IPC: A01K13/00
Filed: 1966-10-28
Abstract: 1,203,226. Spraying apparatus. D. W. THOMAS. 29 Jan., 1968 [28 Oct., 1966], No. 48554/66 Heading A1M. Spraying or showering apparatus comprises an enclosure 1, at least one top spray boom 7 mounted for oscillation about its axis so that it ejects a curtain of spray downwardly which moves from side to side in an arc, and one or more spray booms (4), fig 1 (not shown) at ground or floor level for directing sprays upwardly, The oscillation is effected by a lever mechanism comprising in one embodiment an arm 11 attached to the boom 7 having a bucket 10 at one end and a counter-balance weight 13 at the other. Liquid is discharged into the bucket 10 from a pipe 14 and when the weight of liquid in the bucket becomes sufficient to overcome the counterbalance weight, the bucket swings down, thus causing the boom 7 to turn about its axis, and empties. The counterbalance weight then swings the arm and thus the boom back again and the operation is then repeated. Alternatively, a bucket may be provided at both ends of the arm, Fig. 4 (not shown). Liquid from the floor of the enclosure is discharged into a reservoir 17 from which it is recirculated by a pump to the supply side of the system.
Patent GB-987425-A (GB)
Title: A curable liquid paint composition suitable for the protection of steel objects against the reaction of hot water
IPC: C09D5/18
Filed: 1962-12-27
Abstract: Epoxy resin compositions comprise a polyepoxyalkyl ether of a polyhydric phenol and quartz powder of particle size 75 microns or less, in the ratio of 0.5 to 2.4 parts of quartz to 1 part by weight of polyepoxide.  The compositions may also contain solvents, reactive diluents such as butyl and phenyl glycidyl ethers, pigments such as aluminium powder, flow improving agents such as urea-formaldehyde resins, polyvinyl acetate and polyvinyl butyrate and curing agents such as polyamines and polyamides. The compositions are used as paints for the protection of steel from the action of hot water.  A top-coating composition disclosed consists of a polyglycidyl ether of bisphenol A, xylene, methyl isobutyl ketone, butanol, 2-butoxyethanol, a urea-formaldehyde resin and diethylenetriamine.ALSO:Steel objects to be protected from the action of hot water may be coated by immersion, brushing or spraying with one or more coats of a curable composition comprising a polyepoxyalkyl ether of a polyhydric phenol and quartz powder of particle size 75 microns or less, in the ratio of 0,5-2,4 parts of quartz to 1 part by weight of polyepoxide.  The compositions may also contain solvents, reactive diluents, flow-improvers, other pigments and curing agents.  A similar unpigmented composition may be applied as a top coat.  The coatings may be cured at room temperature or by heating.
Patent GB-1412049-A (GB)
Title: Coumarin derivatives
IPC: D06L3/12
Filed: 1973-10-18
Abstract: 1412049 Optical brighteners CIBA-GEIGY AG 18 Oct 1973 [10 Nov 1972] 48671/73 Headings C3P and C3R [Also in Division C2] Coumarin derivatives of formula wherein R 1  denotes hydrogen, chlorine or methyl, R 2  denotes hydrogen, halogen, alkyl, alkoxy or alkylsulphonyl each with 1 to 4 carbon atoms, R 3  denotes hydrogen, halogen or alkyl with 1 to 4 carbon atoms, R 4  denotes hydrogen, chlorine, methyl or methoxy, X 1  denotes = N- or = CH- and A denotes a radical of the formula wherein Y 1  represents hydrogen, alkyl with 1 to 4 carbon atoms, phenyl which is optionally substituted by chlorine, methyl or methoxy, or benzyl, Y 2  represents hydrogen, halogen, alkyl with 1 to 4 carbon atoms, phenyl which is optionally supstituted by chlorine, methyl or methoxy, or benzyl, Y 3  represents hydrogen, alkyl with 1 to 4 carbon atoms, phenyl which is optionally substituted by chlorine, methyl or methoxy, or benzyl, or two Y radicals in the ortho-position to one another together represent trimethylene or tetramethylene, Z 1  represents hydrogen, halogen, alkyl with 1 to 4 carbon atoms or phenyl which is optionally substituted by chlorine, methyl or methoxy, Z 2  represents hydrogen, alkyl with 1 to 4 carbon atoms, phenyl which is optionally substituted by chlorine, methyl or methoxy, styryl which is optionally substituted by chlorine, methyl or methoxy, nitrile, carboxy or carbalkoxy with 2 to 13 carbon atoms or Z 1  and Z 2  together represent trimethylene, tetramethylene, a fused benzene radical optionally containing 1 to 3 substituents from the series of chlorine, methyl and methoxy, a 1,2,3,4-tetrahydronaphthalene or naphthalene radical fused in the 1,2-position or an acenaphthene radical fused in the 4,5-position, are used as optical brighteners for polyesters, polyamides, polyvinyl chloride and polystyrene.
Patent GB-949770-A (GB)
Title: Current control apparatus for electro-plating vats
Inventor: ROBINSON THOMAS PHILIP
IPC: C25D21/12
Filed: 1962-12-28
Abstract: 949, 770. Current control apparatus for electro-plating vats. STANDARD TELEPHONES & CABLES Ltd. Dec. 28, 1962, No. 48858/62. Heading G3R. The current density in an electro-plating vat 1, supplied with D.C. from an A.C. supply 4 through a regulator 5, a transformer 6 and a rectifier 3, is maintained constant by a magnetic amplifier 7 having an input 71 from the supply 4, an output 72 to the regulator 5 and D.C. control windings 73, 74, 75 connected respectively to a D.C. constant reference voltage 9 via a potentiometer 8, to a current indicator 2a via an overcurrent indicator 10, and to the supply terminals of the vat 1. The amplifier 7 provides the algebraic sum of the ampere turns of the three control windings, those of of the winding 75 being reversed with respect to the other two and the windings being isolated electrically from each other. The regulator 5 can be a transductor arrangement or a motor driven regulator using either an A.C. split phase motor or a D.C. motor having a centre-tapped field winding. Accordingly the amplifier 7 may give a single output for the transductor arrangement or a push-pull output for the driving motor. The indicator 2a may comprise any one of the following forms:- (a) part or whole of the D.C. supply bus -bar threading the toroidal core of the amplifier 7. (b) a shunt connected in the output of rectifier 3 (c) the D.C. supply bus-bar threading a current transductor whose output is rectified and applied to the amplifier 7. The indicator 10 may comprise a current-sensitive relay arranged to provide an alarm, to trip a main supply switch or to take overriding control of the regulator 5 when this is motor-driven. The voltage source 9 is fed from the supply 4 and may include a constant voltage transformer and/or a Zener diode. The voltage/current characteristic for the vat, Fig. 1 (not shown) may be varied by adjustment of potentiometer 8 and the feed back from indicator 2a, which may be connected between the regulator 5 and transformer 6 and modified accordingly, Figs. 3 and 4 (not shown).
Patent GB-1036528-A (GB)
Title: Improvements relating to discharge valves for cisterns
IPC: E03D5/092
Filed: 1964-12-02
Abstract: 1,036,528. Linkages. HOOVER BALL & BEARING CO. Dec. 2, 1964 [May 13, 1964], No. 49066/64. Heading F2R. [Also in Division E1] A push-button assembly 10 to operate the flushing valve of a cistern 12 comprises a bush 20 to mount it in a wall opening 14, a plunger axially reciprocably slidable in the bush 20, relative to which a lever 16 operating a valve at one end is pivotally mounted on a bearing 38, axially parallel to the plunger axis and generally perpendicular to the lever's longitudinal axis, a bell crank lever 46 pivotally connected at 50 by one arm 48 relative to the bush 20 on an axis generally parallel to the said longitudinal axis, the other arm 51 extending into the path of axial movement of the plunger, and having an opening 56 at its fulcrum through which the lever 16 extends and is supported loosely so that when the arm 51 is moved inward, the lever 16 is moved vertically upward. The bush 20 slidably receives a pushbutton head 30 on the plunger and is externally threaded to be engaged by a locking nut 26 made to bear internally against the cistern 12. The plunger is urged axially away from the bell crank lever 46 by a compression spring acting between the bush 20 and the head 30. The bush 20 has a collar 22 to carry the pivot for the lever 16 and the bell crank lever 46, a screw 24 on the collar 22 engaging in a slot 36 in the plunger to limit its axial movement in one direction. The opening 56 in the bell crank lever 46 has a substantially larger crosssectional area than the lever 16, slidably supported on the lower part thereof, which has a configuration to produce a continuous force for the upward movement of the lever 16 on plunger inward movement. The plunger and the bell crank lever 46 have engaging surfaces 58, 54 normally diverging upward from one another, so that when the plunger is initially pushed, the lower edge thereof will engage the surface of the arm 51 at a certain distance from the pivot at 50 and, after the plunger has advanced to some extent, its upper edge will engage and pivotally move the bell crank lever 46. Thus (1) a maximum force acts upward on the lever 16 and a relatively low rate of valve upward movement occurs followed by (2) a reduced force on the lever with a correspondingly increased rate of valve movement.
Patent GB-1034139-A (GB)
Title: Improvements relating to digging and/or load handling equipment
Inventor: HAMILTON PETER
IPC: E02F3/40
Filed: 1963-12-12
Abstract: 1,034,139. Excavator buckets. PETER HAMILTON EQUIPMENT Ltd. Dec. 14, 1964 [Dec. 12, 1963], No. 49086/63. Heading E1F. An excavator bucket has a front section including the mouth of the bucket, the section being mounted on and movable relative to a rear section including the rear wall of the bucket by means, hydraulic ram or screw jack, incorporated in the rear bucket section, which like the front section is serrated or toothed on the abutting side edges of the sections.
Patent GB-1369985-A (GB)
Title: Magnetic resonance apparatus
IPC: G01R33/38
Filed: 1970-10-16
Abstract: 1369985 Nuclear magnetic resonance spectrometer NEWPORT INSTRUMENTS Ltd 18 Oct 1971 [16 Oct 1970] 49265/70 Heading G1N [Also in Division G3] In a nuclear magnetic resonance spectrometer having a polarizing field which is repeatedly scanned under the control of a scanning oscillator 36, field/frequency stabilization is achieved by detecting the positions of a resonance line in successive scans and generating an error signal if they are not uniformly spaced in time. Fig. 1 shows a N.M.R. spectrometer for continuous on-line analysis of a flow line or conveyed samples 22. Resonance pulses from a relaxed water sample 10 (or from the analysis sample itself, if suitable) are fed to a level detector 34 which produces a sharp negative pulse for each resonance pulse. Line centre detector 52 produces alternately inverted pulses, whose areas are related to the time of occurrence of respective resonance pulses, and which are integrated at 60. A sample and hold circuit 64 provides a D.C. output to update the value of the magnetic field every other scan of the scan oscillator. The correction signal may be applied to the scan coils or to separate correction coils. A track and hold circuit 40 limits the scanning signal to within set limits. A supplementary modulation may be applied, if desired, by closing switch 80. On first switching on, a field search and lock circuit 70 is operative until resonance pulses are received. The spectrometer may also include an A.F.C. system, shown in Fig. 9, in which the beat frequency between oscillators 114 and 26 is detected and used to generate a D.C. error signal which is applied to voltagedependant capacitance diodes (144, 145), Fig. 10 (not shown) in the tuning circuit of oscillator 114. On first switching on an out-of-lock detector 138 triggers a slow sweep generator 140 until phase lock occurs. Circuit diagrams of most of the blocks in Figs. 1 and 9 are given.
Patent GB-1111900-A (GB)
Title: Improved apparatus for transversely shaping the end face of a tube during profiling to fit against another tube
IPC: G06G7/16
Filed: 1966-11-03
Abstract: 1,111,900. Cutting by fusion. H. R. MORGAN. 3 Nov., 1966, No. 49322/66. Addition to 1,013,738. Heading B3V. In a flame-cutting machine according to Specification 1,013,738 the cutting torch 2 is mounted in holder 3 composed of relatively movable parts 3B, 3E which are moved during the swivelling motion of the torch so as to urge it further away from the workpiece as it approaches the acute angle position, Fig. 11 (not shown). The holder 3 is adjustably clamped to a boss 7E of member 7 adapted to swivel about a pin 3A carried by a linear moving part 5 of the machine. Member 7 has a channel 7C engaging a roller 8 mounted on a fixed support 9A. Part 3E of the holder 3 is mounted to pivot about a pin 3D and carries a roller 3F biased by spring 3J against a cam 5A on the part 5. In another embodiment, Figs. 6, 7 (not shown), the cam and roller are replaced by a link (3M). In further embodiments, Figs. 12-15 (not shown), a part (3U), (3Z) of the holder which carries the torch has linear movement towards and from the workpiece.
Patent GB-1186060-A (GB)
Title: Improvement in Container for Liquefied Gases
Inventor: JACKSON ROBERT GLOVER
IPC: F17C3/04
Filed: 1967-10-31
Abstract: 1,186,060. Carrying liquefied gases. CONCH OCEAN Ltd. 9 Oct., 1968 [31 Oct., 1967], No. 49426/67. Headings B7A and B7S. [Also in Division F4] Heat insulation material 16, 17, 20, 21, Fig. 3, surrounding a cold liquidized gas storage tank 15 of polygonal form, Fig. 2, has embedded therein near the outer surface a film of water impermeable material 19 extending parallel to the tank sides whereby any water or water vapour which penetrates the outer thickness 20 of the insulation which is permeable runs down the film 19 and is collected in a recess 13a in an outer tank 13, e.g. the inner hull of a tanker. The insulation comprises a thick layer 17 of balsa wood mounted on spaced water impermeable wood strips 16 attached to the inner hull 13, a layer of permeable fibreglass 20 between adjacent strips 16 and impermeable fibreglass 21 between layer 17 and the film 19. The latter may be of metal or plastics material and is adhesively secured to the strips 16, which are provided with drain holes 16a. In a modification the storage tank is of the self-supporting type and the insulation which is spaced therefrom comprises a thick inner layer of balsa wood and a thin outer layer of fibreglass between which layers the water impermeable film is sandwiched; provision being made for collecting water running down the outer surface of the film and also for collecting leakage from the tank as described in Specification 919,755.
Patent GB-1269620-A (GB)
Title: Effervescent compositions containing fluoride
IPC: A61K8/21
Filed: 1970-10-20
Abstract: 1,269,620. Fluoride-containing compositions. WARNER-LAMBERT CO. 20 Oct., 1970 [20 Oct., 1969], No. 49807/70. Heading A5B. An anti-caries composition comprises a fluoride capable of producing a F<SP>-</SP>ion concentration of from 10 to 250 ppm. (by weight) in aqueous media and a solid, CO 2 -producing couple, e.g. of sodium and/or potassium carbonate and/or bicarbonate and a non-toxic organic acid such as citric, tartaric, fumaric or malic acid. A phosphate (e.g. Na 3 PO 4 ), sweeteners, colours and flavours may also be present and the composition may be in the form of a compressed tablet.
Patent GB-1496895-A (GB)
Title: Toy helicopter
IPC: A63H27/133
Filed: 1974-11-18
Abstract: 1496895 Toy helicopters METTOY CO Ltd 9 Oct 1975 [18 Nov 1974] 49909/74 Heading A6S A toy helicopter has a plastics rotor 3 with weights 6 at or adjacent the end of each rotor blade. A thumb-wheel 8 projects through the sides of the helicopter body 1 and drives through a gear 7 to the rotor.
Patent GB-1142344-A (GB)
Title: Blow moulding method and apparatus
IPC: B29C49/48
Filed: 1966-11-11
Abstract: 1,142,344. Blow-moulding; neck bead. H. MEHNERT. 11 Nov., 1966 [27 Nov., 1965], No. 50674/66. Heading B5A. In a blow-moulding process, the necks of articles produced are formed with a bead by supporting the internal surface of the tubular parison and clamping it on to an inner member from outside and subjecting the parison to longitudinal deformation causing material to move outwardly to form a bead adjacent the clamped section. In one embodiment, Fig. 1, the parison is clamped by parts 7a, 7b of mould members 2a, 2b on to mandrel 5, which supports it internally throughout its upper end. Sleeve 11, mounted on mandrel 5 for movement therewith, descends to shear material 12 forming a bead (14, Fig. 3, not shown) and removing excess material (16). In another embodiment, the sleeve 11 may be slidable on the mandrel and the gripping may be effected by sliding blocks, plungers, segments &c. of the neck mould parts. The locating effect for gripping may be assisted by allowing blowing pressure in the mould to expand the tube slightly directly below the level of gripping.
Patent GB-1524728-A (GB)
Title: Wide range arc lamp control means and press using the sam
IPC: G05D25/02
Filed: 1975-12-10
Abstract: 1524728 Automatic control HARRIS CORP 10 Dec 1975 [12 Dec 1974] 50675/75 Headings G3N and G3R The intensity of an A.C. mercury vapour ultraviolet lamp 2 is controlled by a closed loop including a photodiode 7, comparator 65, optical coupling 68, 61 and triac 48 in series with the primary winding 46 of a transformer. The same A.C. supply also drives a blower 6 for cooling the lamp. The lamp may be used for curing or drying ink or paint in multi-colour offset printing. The light intensity reference level in comparator 65 is variable in dependence on the speed of a printing web 12 measured by a tachometer 20, and the web speed is reduced if the intensity falls. The intensity is also automatically increased if a densitometer device 36 detects smudging of ink by a roller 32 indicating insufficient curing.