baber/WOPTO huggingface dataset:
Patent GB-987417-A (GB)
Title: Detergent compositions
Inventor: SHEPHERD ALAN CHARLES
IPC: C11D1/14
Filed: 1961-11-02
Abstract: A solid, heavy duty detergent composition comprises (A) 30-50% by weight of one or more inorganic phosphates and (B) 10-25% by weight of a mixture which consists of 5-95% by weight of one or more alkyl sulphates of formula R.OSO3M in each of which R is a C8-C20 alkyl group and M is a cation, at least 50% of the total alkyl sulphate being derived from one or more alcohols having 16-20 carbon atoms/molecule, and 95-5% by weight of one or more alkyl polyalkylene ether sulphates of formula R1(OCaH2a)n.O.SO3.M1 in each of which R1 is a C8-C20 alkyl group, a is 2 or 3, M1 is a cation and the average value of n is not greater than 20.  Alcohols ROH and R1OH, which may be the same, may be mixed, reacted with a calculated quantity of alkylene oxide, e.g. ethylene and/or propylene oxide, sulphated and neutralized to yield a mixture of alkyl sulphate and alkyl polyalkylene ether sulphate.  The cations M and M1 may be the same and may be a sodium, potassium, ammonium or substituted ammonium ion. The C16-C20 sulphates may be derived from hydrogenated or unhydrogenated tallow alcohol, synthetic alcohols or the higher bailing fractions of palm or coconut oil.  The C8-C15 sulphates may be derived from palm or coconut oil or synthetic alcohols, e.g. lauryl and tridecyl alcohols.  10-25% of the above detergent may be mixed with 0-20% of other organic surfactants, e.g. a dodecyl benzenesulphonate salt, 0-10% of sodium silicate, 0-10% of sodium perborate, and sodium hydroxide, sodium sulphate, suspending agents, e.g. carboxymethyl cellulose, optical brighteners, colorants, perfumes, fatty acid soaps and foam boosters such as fatty acid alkanolamides, e.g. coconut alcohol monoethanolamide or lauryl monoisopropanolamide.
Patent GB-335843-A (GB)
Title: Improvements in or relating to photographic flash light cartridges
IPC: F21K5/08
Filed: 1929-12-23
Abstract: 335,843. Driggs, L. L., and Faber, H. B. Dec. 23, 1929. Pyrotechnic devices. -A flashlight cartridge [or discharge. from a pistol or the like is made with an air chamber M between a front charge of flashlight composition and a rear propellent charge. The flashlight composition may be any known composition and located in a tube. between end washers, or the constituents of the composition, namely, magnesium or the like and potassium chlorate or the like, may be charged separately at E and Q respectively. The propellent charge may be a small blank cartridge in the base of the main cartridge, or may be a small charge N fired by a cap H in the base of the main cartridge. The main cartridge may be a copper one with a thick base surrounded by a circular groove, or may be made up of a paper or metal tube I secured in a metal base cup G with a plug F. The gases from the propellent charge expand into the air chamber, then expel, scatter, and ignite the flashlight composition. When the flashlight composition is in two separate charges, these are thoroughly mixed when expelled.
Patent GB-1517246-A (GB)
Title: Temperature-compensated constant current circuit
IPC: G05F3/26
Filed: 1976-09-23
Abstract: 1517246 Transistor circuits SGS-ATES COMPONENTI ELETTRONICI SpA 23 Sept 1976 [23 Sept 1975] 39540/76 Heading H3T A temperature compensated constant current circuit of the current mirror type, comprises similar transistors T 1 , T 2 , a resistor R 1 , a load R L , coupling means, e.g. the base-emitter path of a transistor T 3 , connected substantially as shown, and a compensation circuit connected in parallel with the transistor T 1 , which produces a compensation current given by (V 1  + V 2 )/R 1 , where V, and V 2  are the respective voltages across the coupling means, and between the control electrode of T, and its emitter, or equivalent, electrode, whereby the collector current of T 2  is rendered independent of temperature. In the embodiment of Fig. 3 the voltages V, and V 2  are each equal to V be , assuming similar transistors, and hence the compensation current supplied through f is 2V be /R 1  and the current through R 1  is (V cc -2V be )/R 1 . The collector current of T 1 , neglecting the base current of T 3 , is thus V cc /R 1 , and hence independent of temperature, and this is substantially equal to the collector current of T 2 . The compensation circuit includes a V be -multiplier network R 3 , R 4 , T 4 , R 4  being equal to R 1  and R 3  being equal to 3R 1 , so that the voltage across the network is substantially equal to 4 V be . The P.D. across resistor R 2  is therefore equal to 2 V be , and if R 2 =R 1  the required compensation current is produced. The purpose of T 3  in this embodiment is to reduce in known manner the base current component flowing through R 1 . In another embodiment, Fig. 2 (not shown), the T 1  collector-base coupling means is a direct connection, and the V be -multiplier is replaced by two diodes (D 1 , D 2 ) in series. In another embodiment, Fig. 4 (not shown), T 3  is replaced by an F.E.T. (T 5 ) and the V be -multiplier is substituted by a network including two F.E.T.s (T 6 , T 7 ) and two diodes (D 1 , D 2 ). In another embodiment, Fig. 5 (not shown), the transistors T 1 , T 2  are F.E.T.'s, the coupling means is a direct connection, and the compensation circuit includes two F.E.T.'s (T 6 , T 7 ) similar to T 1  and T 2  so that their gate-source voltages cancel in like manner to the base-emitter voltages of the bipolar transistors.
Patent GB-1023531-A (GB)
Title: Improvements in or relating to semiconductor devices
Inventor: MILLS BERNARD DOUGLAS
IPC: H01L25/16
Filed: 1962-10-19
Abstract: 1,023,531. Semi-conductor devices. STANDARD TELEPHONES & CABLES Ltd. Oct. 18, 1963 [Oct. 19, 1962], No. 39650/62. Addition to 1,010,111. Heading H1K. Contacts to zones of a planar diffused junction device exposed through apertures in a surface oxide layer comprise bi-metallic films extending over the layer into the apertures. The upper surface of each film consists of a solderable metal and the lower surface of a different metal which adheres well to the oxide. A typical device, a silicon transistor, Fig. 6 (not shown), is formed by successive diffusions through an oxide mask to form base and emitter zones in a high resistivity N-type layer epitaxially grown on a heavily doped N-wafer. After selectively etching to expose areas of these zones contacts are made thereto by vapour depositing aluminium over the entire surface and then etching it from the coated areas. After heating to alloy the aluminium to the silicon a layer grading from chromium or chromium-copper below to gold above, or from manganese to silver is evaporated over the entire surface as described in the parent Specification and then selectively etched to leave strips 11, 12 extending to the emitter and base contacts respectively. Alternatively the strips are obtained directly by evaporation through a mask. The graded layer can also be applied without the intermediary of aluminium if the exposed surface of the base zone is heavily doped beforehand by acceptor diffusion. The back face of the wafer may be friction alloyed to a header, or coated with a graded chromiumgold film and soldered to a header constituting the collector electrode or to a similar graded film on a glass substrate. Alternatively the collector electrode may be formed in the same way as the emitter and base electrodes on the oxide coated surface. The invention is also applicable to planar diodes and solid circuits and to germanium planar devices with silicon oxide masking layers.
Patent GB-1220756-A (GB)
Title: Circuitry for television receivers
Inventor: RHEE DONG WOO
IPC: H04N5/12
Filed: 1968-08-20
Abstract: 1,220,756. Transistor oscillator and automatic phase control circuits. SYLVANIA ELECTRIC PRODUCTS Inc. 20 Aug., 1968, No. 39740/68. Headings H3A and H3T. A line oscillator for a television receiver comprises a transistorized multivibrator, the output being taken by direct current coupling from the emitter of one transistor 49 to the base of further transistor 63. As shown, the frequency is manually adjustable at 61 by a potentiometer. A.F.C. is supplied at 41 by comparing the output with synchronizing pulses. The base/emitter path of transistor 49 may be shunted by a diode or resistor so as to increase the switching speed.
Patent GB-1119732-A (GB)
Title: Radio receiver input circuit
IPC: H03G11/02
Filed: 1965-09-17
Abstract: 1,119,732. Protecting transistor amplifiers; radio-frequency systems. GENERAL DYNAMICS CORP. 17 Sept., 1965 [16 Dec., 1964], No. 39859/65. Headings H3T and H4L. The aerial 10 of a transceiver is connected to terminal 22 of the transmitter and also via a diode bridge 38, 40, 42, 44, biased to be normally conducting, to the input of the receiver, which includes a transistor 24. Excessive voltages, due to radio-frequency signals or contact by the aerial with a power line, which are greater than the bias on the diodes, cause capacitors 72, 74 to be charged so that the bridge circuit presents a high impedance, thus preventing damage to the transistor 24 or to other components. When the excess voltage ceases, the capacitors discharge via their associated resistors, and the diodes again conduct. Switches 68, 70 enable reverse bias to be applied to the diodes if desired.
Patent GB-990422-A (GB)
Title: Improvements relating to clips for electric wires, cables and pipes
IPC: F16L3/04
Filed: 1961-11-07
Abstract: 990,422. Spring clips. O. W. THORSMAN. Nov. 7, 1961 [Nov. 15, 1960], No. 39884/61. Heading E2B. [Also in Division H2] A one piece clip for a cable, pipe or electric wire comprises a flat part 1 provided with a hole for a fixing screw and an arcuate part 2 extending from the flat part, the free end of the arcuate part being located in the unstressed condition of the latter in or near the plane of the face of the flat part which lies against the surface to which the clip is fixed in use, the clip being made of a resilient synthetic plastic material such that the arcuate part can adapt itself by variation of its radius of curvature to embrace a range of cables pipes or electric wires or different diameters with close contact. The clip may be made of an amide plastics material or polypropylene and the inside of the arcuate part can be fluted or grooved.
Patent GB-1318463-A (GB)
Title: Feed and method for aquianimals cultivation
IPC: A01K61/00
Filed: 1970-08-19
Abstract: 1318463 Food for aqueous animals ASAHI KASEI KOGYO KK 19 Aug 1970 [22 Aug 1969 25 Aug 1969 31 Oct 1969] 39898/70 Heading A2B [Also in Division C6] Aquianimals including specified species, &c. of zoo-plankton, fish, octopus, crustacean and mollusc are fed with a culture product obtained by aerobically culturing in a medium containing molasses and one or more nitrogen compounds, as carbon and nitrogen sources respectively, a strain of yeast which is viable in sea water, and in sea water has a COD rising index of not more than 150 and an RNA excretion rate of not more than 20% (both defined). Yeasts conforming to the definition do not possess inhibiting toxin and excrete inter-cellular substances into the aquianimals' breeding medium only to a negligible extent. It is preferred also to include algae (Chlorella, Chlamydomonus, Chaetocerus, Scenedesmus or Ulva) in the breeding medium. Yeasts of the genera Saccharomyces, Torulopsis and Rhodotorula may be used, particularly the strains designated Saccharomyces disaccharomellis, Saccharomyces acidosaccharophillii, terulopsis candida var. marina, Terulopsis larvae and Rhodotorula rubra var. marina. Example 14 discloses a feed mixture comprising marine yeast (according to the invention), frozen sand eel, white fish meal, wheat flour, carboxymethyl cellulose and inorganic salts.
Patent GB-1480896-A (GB)
Title: Spring roller blinds
IPC: E06B9/50
Filed: 1974-08-23
Abstract: 1480896 Roller blinds UNILEVER Ltd 23 Aug 1974 [23 Aug 1973] 39984/73 Headings A4B A blind roller 18 is supported at one end by a first bracket 1 with holes 4, 5 facilitating optional ceiling or wall fixing and with a cruciform aperture 7 to receive a flat spigot 20 of a detent mechanism 19 fitted to one end of the roller, and at the opposite end by a second bracket 8 also having fixing holes 4, 5 and including a slot with one open end, the slot being inclined at 45 degrees to the plane of a top fixing flange 3 and serving to receive a circular section spigot 15 at the opposite end of the roller. The roller is spring-biased to the rolled up condition. The circular section spigot 15 may be retained in the slot by a pin passed through aligned holes at the mouth of the slot. The spigot 15 is carried by an end cap 13 having a pointed spigot 16 for engagement in the roller end.
Patent GB-1336651-A (GB)
Title: Transport system
IPC: B60L5/38
Filed: 1971-08-26
Abstract: 1336651 Electric railway current collector MERLIN GERIN 26 Aug 1971 [11 Sept 1970] 40073/71 Addition to 1243467 Heading B7L A transport system which is an improvement in or modification of that in claim 1 of Specification 1,243,467, comprises an electrically driven vehicle and track therefor and a movable current collector 16 driven by the vehicle along a passageway defined by stationary multi-phase energizable parallelly spaced apart conductors 10, 12 and 14, the collector 16 including for each conductor a set of longitudinally spaced apart contact shoes 36, 36<SP>1</SP>, 36<SP>11</SP> &c. for engagement with a corresponding contact surface of the conductor 10; a respective longitudinally extending carrying structure (such as a channel member) 18, 20 and 22, Fig. 2, to resiliently support (e.g. by compression springs 38) the contact shoes of each set; and central hub means 30, 30<SP>1</SP> having peripheral resilient support means 24, 26, 28 and 24<SP>1</SP>, 26<SP>1</SP>, 28<SP>1</SP> to elastically support the carrying structures 18, 20 and 22. The resilient support means may be elastic bodies, preferably elastomeric blocks, such as 62, Fig. 6, or pneumatic cushions such as 60, or combinations thereof as shown. Pneumatic cushions may be interconnected for fluid communication, preferably via a throttled conduit (66), Fig. 7 (not shown).
Patent GB-1363153-A (GB)
Title: Flowmeters
IPC: G01F1/40
Filed: 1971-08-26
Abstract: 1363153 Measuring fluid-flow SIEMENS AG 26 Aug 1971 [5 Sept 1970] 40203/71 Heading G1R [Also in Division A5] In a flowmeter, such as is used for monitoring the lung function, two pressure transmission ducts 2, 3 disposed one behind the other and connected to a suitable differential pressure manometer, receive air from a multiplicity of narrow flow channels 8, formed between films 7 of polyvinyl chloride dividing the bore of a tube 1, through bores 9 and 10 ink collecting channels 11 and 12 associated respectively with the ducts 2 and 3.
Patent GB-1171931-A (GB)
Title: Methods of Manufacturing Tubing.
Inventor: GARRETT ROBERT MICHAEL
IPC: B29C33/60
Filed: 1966-09-08
Abstract: 1,171,931. Tubular filaments. VICKERS Ltd. 16 Aug., 1967 [8 Sept., 1966], No. 40265/66. Heading B5B. A method of manufacturing a tube, comprises coating a drawable filament with a solidifiable material, causing or allowing the material to solidify to form a tubular coating on the filament and thereafter removing the filament from the coating by drawing the filament so as to produce the required tube. The solidifiable material may be, for example, a solution of polyvinyl chloride, or a polymerizable material capable of being solidified by polymerization, and possibly containing a polymerization catalyst, e.g. a silicone fluid. The drawable filament is suitably a nylon filament, especially an undrawn nylon monofilament. A liquid lubricant, suitably water or a surface-active agent, may be introduced between the tubular coating and the filament to assist the withdrawal of the filament. In a preferred method, the drawable filament is coated with the solidifiable coating material by pulling the filament through the solidifiable material, in a dust-free environment if tubes free from pinholes are desired. A number of methods of gripping the tube during removal of the filament may be used, including (a) gripping the tube between two layers of adhesive tape fastened to a rigid base, e.g. double-sided linen tape under the tube which is then covered by, e.g. "Sellotape" (Registered Trade Mark), (b) embedding the tube in a low melting point adhesive, for example Scotch glue, or, for large sizes of tubing, in a low melting-point wax; (c) embedding the tube in a soluble adhesive which can readily be redissolved without causing damage to the tube, e.g. polystyrene cement; (d) gripping the tube between two or more non-adhesive members, which are either rigid and roughsurfaced, or elastic surfaced, e.g. rough surfaced metal plates or plates coated with rubber; and (e) gripping the tube only at the point where the filament is being drawn, whereby the elastic forces of the tube overcome the friction between the drawn filament and the tube. Such gripping may be carried out manually or mechanically by pulling the filament at constant speed, the tube being gripped between rollers geared to the puller so that the part of the filament being drawn is always between the rollers. The viscosity of the unpolymerized silicone fluid can be adjusted by dilution, e.g. with toluene, or by filling, e.g. with "Aerosil", a finely divided commercially available silica. Polyvinyl chloride tubes can be made by using a solution of plasticized polyvinyl chloride in tetrafluoroethane of suitable viscosity in the aforementioned method. The solution is preferably used in a covered vessel to prevent excessive solvent evaporation. An example illustrates the production of tubes having a bore of 0À002 inch radius by pulling undrawn nylon filaments at 2 inches per minute through either solutions of polyvinyl chloride, or through silicone fluids.
Patent GB-1269359-A (GB)
Title: Improvements in or relating to semiconductors and methods of doping semiconductors
Inventor: NELSON RICHARD STUART
IPC: C30B31/22
Filed: 1968-08-22
Abstract: 1,269,359. Ion-implantation into semiconductors. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. 18 Aug., 1969 [22 Aug., 1968], No. 40308/68. Heading H1K. A region of a semi-conductor is doped by ionimplantation of a significant impurity, the same or a slightly larger region being ion-implanted previously, simultaneously, or subsequently with a non-active impurity, and the semiconductor being annealed after or simultaneously with the second implantation. The combined effect of the two implantations is to produce sufficient lattice damage to ensure that a low temperature anneal will place the significant impurity in substitutional sites. Implantation may be arranged such that the implanted region is made substantially amorphous, the region being made epitaxial with the underlying semi-conductor by the anneal. Boron may be implanted into silicon using neon or silicon ions as the non-active impurity. (The lattice damage accompanying phosphorus implantation is such that it is not necessary to apply the process of the invention).
Patent GB-1151004-A (GB)
Title: Fractional Step Stepping Motor.
IPC: H02P8/22
Filed: 1967-09-05
Abstract: 1,151,004. Control of stepping motors. GERBER SCIENTIFIC INSTRUMENT CO. 5 Sept., 1967 [17 April, 1967], No. 40441/67. Heading H2J. A stepping motor has a four-pole stator, each pole having a separate field winding A-D, and a permanent magnet rotor in a first position of which switches SA1, SA2 are closed for full energization of the winding A. In a second rotor position, switches SA1, SA2, SB1 are closed, whereby the winding A is fully energized and the winding B is half-energized, whilst. in a third position, the switches are arranged so that both the windings A, B are fully energized. This is followed by full energization of the winding B accompanied by half-energization of the winding A, and then full energization of winding B accompanied by de-energization of winding A. The subsequent operation of the switches and energization of the windings effected at the other rotor positions follow in a similar manner, sixteen steps being required to turn the rotor through one revolution and to complete a full electrical cycle. The switches SA1-SD2 may be transistors associated with a control unit operating in response to command signals in the form of input pulses and a direction signal. In another arrangement, each pole of the motor has two windings, a single winding producing half-energization, and both windings producing full energization of the associated field. In a further embodiment, each pole has a winding which is energized through a network comprising two parallel branches, each branch having a resistor and a series switch. A common point of the branches is connected to the winding through selector switches -for reversible energization of the winding. Windings on opposite poles are energized to the same level but in the opposite direction.
Patent GB-1244633-A (GB)
Title: Power-driven aquatic vehicle
Inventor: JACOBSON CLAYTON JUNIOR
IPC: B63B35/73
Filed: 1968-08-27
Abstract: 1,244,633. Planing craft. C. J. JACOBSON. 27 Aug., 1968 [19 Feb., 1968], No. 40869/68. Headings B7A, B7S and B7V. [Also in Division F1] An aquatic vehicle comprises a hull having a substantially flat undersurface 14 rising towards its forward end and two laterally spaced platforms 80 between which is a seat 100 astride which an operator can sit with his feet on the platforms, the hull housing an internal combustion engine 28 having a rearwardly extending drive shaft 32 on which is mounted a propeller 52 in a passage 24 extending rearwardly from an opening 26 (which may have protective bars 160) in the surface 14 to a tubular part 22 having its longitudinal axis lying fore-and-aft in the vehicle and carrying at its rear end a nozzle 64 mounted (as at 66) for pivotal movement about a vertical axis, the movement being controlled manually (e.g. by a control device 120, 124 &c. acting via a cable and an arm 140). The nozzle 64 may pivotally mount at 70 a deflector flap 68, controlled by lever 144 and cables 146, 148. The passage 24 may incorporate a band 154 of elastomeric material round the propeller 52 to allow small stones to pass without damaging the vehicle.
Patent GB-1398071-A (GB)
Title: Devices for dispensing perfume or similar volatile substances
IPC: A61L9/12
Filed: 1974-02-26
Abstract: 1398071 Perfume and deodorant container HONG THUAN SEOW 26 Feb 1974 41001/70 Heading A5G A device for dispensing volatile materials such as perfumes and deodorants comprises a perforated sleeve 14 containing an absorbent pad 16 holding the volatile material, which sleeve fits in a holder 2 having one or more apertures 6, one end of the holder being closed by a lid or plug 20 which is held in position by a yoke 28 which surrounds the holder and lid, the bar 32 fitting in a channel 22 in the lid and the studs 34 cooperating with holes 8 in the holder.