baber/WOPTO huggingface dataset:
Patent GB-1361020-A (GB)
Title: Cellulose reactive dyestuffs
IPC: C09B62/002
Filed: 1971-12-15
Abstract: 1361020 Reactive dyes IMPERIAL CHEMICAL INDUSTRIES Ltd 29 Nov 1972 [15 Dec 1971] 58228/71 Heading C4P The invention comprises reactive dyes of the general formula  wherein R<SP>1</SP> is H or alkyl, R<SP>2</SP> is alkyl or optionally substituted aryl, or R<SP>1</SP> and R<SP>2</SP> may form a 5- or 6-membered heterocyclic ring with the N atom, each n is independently 0 or 1, each Y independently is H or methyl or the two Y's represent -O-, X- is SO- 3  or may be CO- 2  if the two Y's are -O-, Am is the -NH- group or an amine or a diamine radical having the SO 2  group linked to the N atom of an amine radical or one of the 2N atoms of a diamine radical and Z is a cellulose reactive group. Preferably R<SP>1</SP> and R<SP>2</SP> are C 1 -C 4  alkyl groups and inter alia, Z is a #-sulphatoethylsulphone group or a heterocyclic radical containing 2 or 3 nitrogen atoms and at least one cellulose reactive group on a carbon atom of the ring. They are prepared by (a) reacting a corresponding xanthene or triarylmethane containing a group -SO 2 -Am-H with an anhydride or halide of an acid containing a cellulose reactive group; or a heterocyclic compound containing a halogen atom linked to a carbon atom of the heterocyclic nucleus and also a cellulose reactive group or (b) by reacting the sulphochloride of a corresponding xanthene or triarylmethane dye with a compound H-Am-Z. The dyes may contain further xanthene or triarylmethane nuclei in the group Z and the dyes are used on wool, silk, leather, polyamides, cotton, linen, viscose rayon to give pink, red, violet and blue shades.
Patent GB-1305988-A (GB)
IPC: H01L29/08
Filed: 1970-12-10
Abstract: 1305988 Transistors INTERNATIONAL BUSINESS MACHINES CORP 10 Dec 1970 [29 Dec 1969] 58655/70 Heading H1K A transistor comprises a substrate region (63 in Fig. 7) of one conductivity type, two superposed layers 64, 68 of the opposite type thereon with a subcollector 66 of the same type at their interface with an extension 70 to the surface, a base region 72 abutting the subcollector and an emitter region 73 located wholly above the end of the subcollector remote from the upward extension 70, layere 68, 64 being doped and dimensioned so as to avoid breakdown between the base and substrate regions. The Fig. 7 arrangement has the additional features of P + isolation region 67, an N+ power input channel 61 extending to the N+ substrate proper 60, which acts as a bus-bar, and a P+ region 62 for decoupling the power supply. Base contacts 74, 75 are disposed on both sides of the emitter and the subcollector region is of uniform width. Modifications are described in which base-collector capacitance is reduced either by necking the subcollector between its ends or by locating the emitter at one end of the base region thereby allowing reduction of the area of the base-subcollector interface. In the latter case only a single base contact is used. In addition the base proper 60 may be dispensed with, together with the power input channel and decoupling region. Standard manufacturing techniques involving epitaxial deposition and masked diffusion steps, which are described in detail, are used.
Patent GB-1354519-A (GB)
Title: Aziridinyl compounds
IPC: C07D203/12
Filed: 1971-12-20
Abstract: 1354519 Bis - (aziridinyl)alkanes HERCULES Inc 20 Dec 1971 [21 Dec 1970] 59175/71 Heading C2C The invention comprises compounds I where X is C 2-10  alkylene, R is an electron withdrawing group selected from carbalkoxy, aroyl, cyano, aryl or aryl substituted by halogen, nitro or cyano groups, the R's being the same or different and one R attached to each aziridinyl ring may be hydrogen, and their preparation by (a) reacting an alkylene diamine with a dibromo - compound R-CHBr.CHBr.R, (b), when at least one R attached to each aziridinyl ring is aroyl, by reacting an alkylene diamine with an α,#-ethylenically unsaturated ketone or (c), where at least one R attached to each aziridinyl ring is carboalkoxy, by reacting an alkylene diamine with an α-halo-α,#-ethylenically unsaturated carboxylic acid ester. The compounds of the invention are used as crosslinking agents for ethylenically unsaturated polymers.
Patent GB-1194659-A (GB)
Title: Refractory Arch Roof Construction
Inventor: HANSEN KENNETH WALTER
IPC: C04B35/42
Filed: 1968-12-13
Abstract: 1,194,659. Metal-cased refractory bricks. DRESSER INDUSTRIES Inc. 13 Dec., 1968 [14 Dec., 1967], No. 59442/68. Heading F4B. In a refractory arch roof construction for furnaces, wherein the roof is formed of courses of refractory bricks, and each of said bricks has an oxidizable metal case over at least two intersecting side surfaces to provide thermal expansion allowance laterally and longitudinally of the roof upon initial furnace heating, sheets of asbestos material are disposed between a sufficient number of bricks to provide from # to “ inch thickness of asbestos sheet per linear foot of roof laterally and longitudinally. As shown, the refractory bricks 24, which are encased within two overlapping U-shaped metal cases having crimps provided at the hot ends thereof, have side surfaces measuring nominally 4¢ by 3 inch. On the 4¢ inch surface, as illustrated by rows A and C, sheets of alternatively <SP>1</SP>/ 16  and # inch thickness are disposed between every other pair of adjacent bricks. In rows B and D, sheets of <SP>1</SP>/ 16  inch thickness are disposed between 3 bricks out of 4. Along the 3 inch surface of the brick, as shown in rows E and G, sheets of asbestos <SP>1</SP>/ 8  inch in thickness are disposed between every other pair of adjacent bricks, while in rows F and H, sheets of asbestos <SP>1</SP>/ 16  inch in thickness are disposed between every pair of adjacent bricks.
Patent GB-1284688-A (GB)
Title: Process for the production of silicon carbide whiskers
Inventor: THALMANN E
IPC: C30B29/36
Filed: 1971-04-22
Abstract: 1284688 Silicon carbide LONZA Ltd 22 April 1971 [5 June 1970] 59537/70 Heading C1A Silicon carbide whiskers are made by passing halogen-containing hydrogen firstly over silicon powder heated to 1100-1550‹ C., and then over carbon powder heated to 1100-1550‹ C. and allowing whiskers to grow on a substrate heated to a temperature less than the temperature of the silicon, e.g. 1000-1250‹ C. The substrate may be graphite, carbon, aluminium oxide or bauxite, and may be simply a cooler part of a reaction tube located above the carbon. The hydrogen preferably contains 1À5-8 atom per cent of halogen at a flow rate of 5-20 cm./min. The silicon powder preferably has a particle size of 1-20 microns. In examples gases consisting of (1) 72% H 2 , 20% N 2 , 8% Cl 2 ; (2) 84% H 2 , 12% N 2 , 4% F are passed over silicon (98À5% Si) and carbon in a heated sintered alumina tube. After 8 hours, the deposited silicon carbide whiskers are 3-10 microns in diameter and up to several cm. long.
Patent GB-1453620-A (GB)
Title: Transistor amplifier
IPC: H03F3/183
Filed: 1973-12-21
Abstract: 1453620 Transistor amplifying circuits RCA CORPORATION 21 Dec 1973 [2 Jan 1973] 50557/73 Heading H3T A transistor amplifier (Fig. 1) comprises a common emitter stage 101 with a D.C. negative feedback stabilizing circuit including the emitter-collector or source-drain path of a transistor connected between a collector current source 111 and the base of transistor 101. This enables stability to be obtained without the use of highvalued resistors. In Fig. 1 transistor 101 is direct-coupled to a Darlington pair 115, and if resistors 111, 113 are given equal values, overall temperature compensation occurs. In a second embodiment, the amplifier comprises a Darling- ton pair 201 and the current source is formed by the emitter to collector path of a further transistor 211: the load for the Darlington pair 201 is provided by the emitter to collector of a yet further transistor 221, base-biased via resistor 223. The signal is by-passed from the feedback path by means of capacitor 226. The capacitor 226 may alternatively be replaced by a seriestuned circuit so as to produce a frequencyselective amplifier. The quiescent input current of the output amplifier 235 may be made sufficiently high for it to exhibit a low input impedance so that capacitor 226 may be omitted. The Specification also describes push-pull circuits (Figs. 3, 4, not shown) based on Figs. 2 and 1 respectively. In a further embodiment, Fig. 5, not shown, the output stage derives collector current from current source transistor (511) and the amplifier transistor (501) derives base bias from the output stage. The Specification states that various transistors may be replaced by composite transistors, e.g. in Darlington configuration or by other transistor types, e.g. P-channel MOS transistors.
Patent GB-1249901-A (GB)
Title: Fluid energy mill and process
IPC: B02C19/06
Filed: 1968-12-23
Abstract: 1,249,901. Jet pulverizers. COLUMBIAN CARBON CO. 23 Dec., 1968 [29 Dec., 1967], No. 61153/68. Heading B2A. A fluid energy mill particularly for reducing carbon black agglomerates comprises a chamber 1 having a feed section 1a, a cylindrical grinding section 1b and an outlet section lc and an impervious core section 6; whose outside diameter is preferably at least half the inside diameter of the grinding section 1c. The inner surface of the grinding section has a wearresistant lining. Fluid jets, e.g. steam or supersonic air at Mach 2 to 3, are supplied via nozzles 5 tangentially to the mill casing. Particles are supplied via a conduit 12 which may include a nozzle 10 to assist aspiration of the particles into the milling chamber. The annular spiraling mass of particles advances towards the discharge outlet and is disrupted by vanes 13 and the construction of the section 1c into a linear flow. There is no classification during the milling process. Treating agents, e.g. oxidants or surfactants, may be added during milling.
Patent GB-1334394-A (GB)
Title: Self-regulating gas compressors
IPC: F04B49/16
Filed: 1970-12-31
Abstract: 1334394 Regulating compressors WESTINGHOUSE BREMSEN-UND APPARATEBAU GmbH 31 Dec 1970 [2 Jan 1970] 62015/70 Heading F1N The clearance space 20 of a reciprocating piston compressor is connected to an additional space 21 when the delivery pressure in a chamber 6 reaches a predetermined value. The connection between the spaces 20, 21 is made by the opening of a valve 8, the valve being movable by a piston 13 displaced when the delivery pressure is sufficient to overcome the loading of a spring 16.
Patent GB-629925-A (GB)
Abstract: 629,925. Cutting wires for cheese, butter &c. PHIPPEN, A. J. Dec. 5, 1947, No. 32164. [Class 87 (ii)] The cutting wire is detachably secured to a handgrip or other support 1 by a plunger 8 mounted in the support and urged by a spring 5 to engage a loop 7 on the wire. To release the wire the plunger is pulled out of the loop by means of a knob 6. One end of the wire may be detachably secured to a cutting board in this way, the other end being similarly secured to a handle as shown.
Patent GB-732120-A (GB)
Abstract: 732,120. Regulating air supply. FEDERATED FOUNDRIES, Ltd. May 28, 1953 [April 28, 1952]. No. 10609/52. Class 126. In a solid fuel stove having a thermostatically operated damper regulating the supply of combustion air, the' thermostatic element is enclosed in a duct through which air is drawn by the chimney draught and the passage of air through the duct is regulated by a damper controlled by the thermostatic element. The heat-sensitive element 9 of a thermostat is mounted beneath the hot-plate 2 of a cooker, and is enclosed in an air duct 10 through which air is drawn by the chimney draught. Combustion air is fed to the ash-pit 4 of the cooker from a box 5 with an inlet controlled by a damper 6 mounted on a lever 7 which is held in the open position by a manually adjustable spring. The lever 7, which also carries a damper 11 controlling the inlet to the air duct 10, is operated by a bellows 8 connected to the heat-sensitive element 9. A manually adjustable valve is provided to regulate the flow of air through the duct 10.
Patent GB-2001014-A (GB)
Title: Ships' hulls
IPC: B63B9/06
Filed: 1978-07-14
Abstract: The hull has a stern portion (1) a bow portion (3) and a mid-portion (2). In particular the hull has a total length of the mid and bow portions which is 3 to 8 times the length of the stern portion a largest beam of the mid-portion equal to 1 to 1;3 times the beam of the stern portions at its connection to the mid-portion 2. The contact lines between the stern portion and the mid-portion, and between the bow portion and the mid-portion lying on planes or on cylindrical surfaces normal to the ship's centre line, and inclined at angle of 30 DEG  to 90 DEG  to or parallel with, the ship's said longitudinal bottom line. <IMAGE>
Patent GB-2004182-A (GB)
Title: Process for preparing pharmaceutical cosmetic or diagnostic formulations
IPC: F26B7/00
Filed: 1978-08-07
Abstract: The process produces pharmaceutical, cosmetic or diagnostic formulations by the freeze drying of one or more substances in solution or in suspension in a solvent or a mixture of solvents. The solution or suspension is locally and progressively cooled in a controlled manner while agitating so as to produce microcrystals of solvent which are put in suspension in the remainder of the liquid until there is obtained a high-viscosity microcrystalline complex system comprising essentially isolated microcrystals of solvent in intimate mixture with interstitial liquid phases having a high concentration of the initially present substances. The microcrystalline complex system is hardened by cooling and lyophilized. This process permits the obtainment of lyophilized formulations having a higher dissolving or dispersing rate and lyophilized compositions of normally incompatible substances.
Patent GB-2003266-A (GB)
Title: Solar heater
IPC: F24S10/50
Filed: 1978-09-07
Abstract: A device for collecting solar energy utilises a fluid flowing through the space (2) inside a container (1). The container has a transparent elliptical-section wall (3) which, together with the fluid, forms a lens which directs solar radiation into a focal region (8). In use, fluid enters the container through inlets (14) adjacent the transparent wall (3) and passes out through an outlet aligned with the focal region (8). The container may be provided with black or silver coloured partitions (11-13). <IMAGE>
Patent GB-2004323-A (GB)
Title: Improvements in sound insulation of air-cooled internal combustion engines
IPC: G10K11/16
Filed: 1978-09-13
Abstract: The cylinder block and head of the engine are formed with cavities 5, 10 which are substantially filled with metallic sodium 6, 16. The cavities are arranged to surround the upper part of the or each cylinder 1 and the inlet and exhaust ports 13, 15. When the engine is running the sodium 6, 16 melts and, whilst it does not resist heat conduction to the cooling fins 4, 9, it attenuates the transmission of sound waves. <IMAGE>
Patent GB-2012666-A (GB)
Title: Self-curling film
IPC: B32B27/08
Filed: 1978-10-26
Abstract: A self-curling laminate (1) comprises a relatively stiff first layer (2) and a second layer (3) laminated to the first layer. The second layer is thicker than the first layer and is of relatively elastic plastics material, under tension. A process for making such a self-curling laminate, comprises laminating together the first layer (2) and the second layer (3) while maintaining both layers under tension, the tension applied to the second layer being substantially greater than that applied to the first layer. Also disclosed are articles including a bookmark comprising such a self-curling laminate, reading instruments incorporating such films and labels. The first layer may be a polyester, vinyl chloride polymer, polycarbonate, polystyrene or regenerated cellulose film or a synthetic paper and the second layer polyethylene, nylon, ionomer resin, vinyl chloride polymer or an ethylene-vinyl acetate copolymer. The layers maybe bonded together by an adhesive e.g. polyethylene. <IMAGE>
Patent GB-2010578-A (GB)
Title: Smoke detectors
IPC: G08B29/14
Filed: 1978-11-07
Abstract: In an ionization smoke detector having first and second electrodes defining an ionisation chamber permitting entry of smoke, a radioactive source 20 to ionise gas in the ionisation chamber and a potential difference applied across the first and second electrodes to cause an ion current to flow, which current is affected by entry of smoke, an auxiliary electrode 40 is positioned in the ionisation chamber between the first and second electrodes, and it is arranged to maintain or create a potential difference between the first electrode and the auxiliary electrode. The auxiliary electrode may be used for testing or for adjustment of sensitivity. As shown, a collector electrode 14 divides the chamber into two regions, with the auxiliary electrode in the outer sensing region. <IMAGE>
Patent GB-2026057-A (GB)
Title: Telescopic greenhouse
IPC: E04B1/343
Filed: 1978-11-30
Abstract: A greenhouse having a single- glazed structure in at least two sections, at least one of the sections being supported for lateral movement relative to the other section or sections, whereby the two sections alternatively may be arranged one inside the other to give an at least partially double-glazed greenhouse or laterally adjacent one another to give a single glazed greenhouse of larger area, the sections having end walls such that in the alternative configurations the greenhouse remains enclosed on all sides. The larger area, single-glazed configuration is used in summer; the double glazed configuration in winter and spring. Preferably the movable section rolls on ground rails into and out of a fixed section. <IMAGE>
Patent GB-2012505-A (GB)
Title: Protective relaying apparatus
IPC: H02H3/40
Filed: 1979-01-10
Abstract: A protective system for a polyphase distribution circuit comprises first and second ground relays 60, 60' located at a substation and a remote location respectively, each ground relay providing a time- delayed trip signal to an associated circuit breaker 52, 52' in dependence on the ratio of the zero sequence current Io to some function of the phase currents, and a zero sequence directional relay 67 at the remote location for adjusting the trip delay time of the second circuit breaker according to the flow direction of a zero sequence quantity at the remote location. <IMAGE>
Patent GB-2014709-A (GB)
Title: Regenerative Heating System for an Inclined Hearth Gas-Retort Furnace
IPC: C10B11/00
Filed: 1979-02-06
Abstract: The invention relates to a regenerative heating system for an inclined hearth gas-retort furnace having a battery of side by side chambers (10). The furnace has a horizontal roof (11) and rows of vertical heating flues (30, 31) arranged between adjacent chambers (10) the flues being, joined in pairs or groups of flues being joined together by a header flue (40) located at their top. Regenerator cells (23- 26) enclose a checkerwork 29 and are essentially vertically placed below each chamber and each communicates only with one or more of the flues of one pair or a group through a pipe opening at the hearth of the heating flue and/or at spaced points (43) over the height of the flue. Fuel gas supply channels (44) open into the flues, with control means (46, 28) for the supply of gas and of air to the flues, these control means being independent for each pair or group of flues. The regenerator cells (23-26), of cross-section variable according to the flue with which they are associated are provided with checkerwork (29) to a height substantially the same whatever the cell. The invention finds application in furnaces such as coke-ovens. <IMAGE>
Patent GB-2051345-A (GB)
Title: Determining Impurities
IPC: G01N23/10
Filed: 1979-06-08
Abstract: A method of determining the content of impurities in organic-origin natural fibrous materials, in which a specimen of said material is compacted to a surface density of from 0.05 to 50 g/cm<2>, whereupon it is exposed to the effect of a soft gamma-radiation, the mass attenuation coefficient ( mu ) is determined and the percentage content (CA) of impurities is assessed from the following relation  CA=K .  mu  . d-b where CA is the content of impurities in a natural fibrous material in terms of fractions of unity;  K=0.1 to 4.0;  b=0.2 to 8.0;   mu  is the mass attenuation coefficient, cm<2>/g; d is the surface density of a specimen of natural fibrous material, g/cm<2>. The method has applications in the textile industry.
Patent GB-2048074-A (GB)
Title: A Bottle for Eye Washing
IPC: A61H35/02
Filed: 1979-06-29
Abstract: The invention relates to a bottle for eye-washing comprising a body or container 10 and a head or glass element 12 assembled together; the head element comprises a trough portion 20, a supply tube 22 for feeding a liquid from inside the container into said trough portion and an outlet tube for discharge of the used liquid. The container or body has an angled configuration to allow the application of the head element on an eye of a user in a comfortable way. The trough portion also includes a valve 40 for allowing air into the container to replace the discharged liquid. <IMAGE>
Patent GB-2023300-A (GB)
Title: Photosensitised materials
IPC: G03F7/34
Filed: 1979-07-02
Abstract: Photosensitive materials are described which are useful for making dry transfer sheets. They consist of a flexible transparent or translucent carrier, on to which are coated successively a water-removable non- photosensitive release coat (e.g. of vinyl acetate and vinyl alcohol homopolymers and copolymers) and a photosensitive layer which can be rendered water irremovable by exposure. When such material is exposed and developed, simply using water, the unexposed areas and the underlying release coat in the unexposed areas are both removed. If the photosensitive layer contains permanently tacky adhesive components and the release coat is formulated to stick to the photosensitive layer better than to the carrier sheet, transfer materials may be directly produced in one process of exposure and development.
Patent GB-2301502-A (GB)
Title: Navigation on guided missiles
Inventor: CURTIS PETER DENNIS
IPC: F41G7/22
Filed: 1979-07-19
Abstract: A receiver 10 produces guidance signals on a channel 11 from a scanning narrow beam radiating target and has a monitor channel 12, range and angle limitations being imposed on the effective coverage of the receiver 10 by an angle gate 16 and an amplitude monitor 20 controlling a coincidence gate 19 to enable homing onto a target in response to main beam pulses in the presence of a plurality of interfering targets. A pulse rate monitor circuit 23 monitors the rate of pulse reception in the monitor channel such that when a predetermined rate corresponding to the reception of side lobe pulses is detected the sensitivity of the receiver is increased so that a terminal intercept may be achieved.
Patent GB-2061166-A (GB)
Title: Garden secateurs
IPC: A01G3/025
Filed: 1979-10-24
Abstract: A pair of garden secateurs 10 for cutting in places which are difficult to reach, comprises a cutting blade 11 and anvil 12 operated by handles 13 and 14 via relatively movable connecting members 15 and 16 which are longitudinally slidable relative to each other upon pivotal operation of handles 13 and 14. The blade 11 is integral with connecting member 15, whilst anvil 12 is integral with connecting member 16 and handle 14. The handle 13 is pivoted at 20 to the handle 14 and is pivoted at 21 to connecting member 15, so that closure of handle 13 towards handle 14 pulls the blade 11 down into engagement with the anvil 12. <IMAGE>