baber/WOPTO huggingface dataset:
Patent GB-1102880-A (GB)
Title: 1,4-benzodioxane derivatives and their preparation
IPC: C07D319/20
Filed: 1966-10-11
Abstract: <FORM:1102880/C2/1> <FORM:1102880/C2/2> <FORM:1102880/C2/3> Novel compounds of the Formula I, wherein R1 is H, OH, RCH2-, RCH(OH)-, RCO-, C1- 5 alkoxy or -O-(CH2)n -NR1R11, R2 is H, OH, CH3, C1- 5 alkoxy or -O-(CH2)n -NR1R11, R3 is H, OH, CH3O or, together with R2, forms a methylenedioxy group, R is H or CH3, n is 2 or 3 and R1 and R11 are C1- 3 alkyl or, together with the adjacent nitrogen atom, form a 5- or 6-membered heterocyclic ring, the group -O-(CH2)n-NR1R11 containing a total of 4-8 C atoms, and their esters and acid addition salts, are prepared by cyclizing an ether of the Formula II or III, wherein one of the substituents X and Y is a free OH group and the other is Cl, Br, I or a free or functionally modified OH group, the ether of Formula II or III being, if desired, formed in situ and/or containing one or more functionally modified OH groups in R1, R and/or R4. The compound of Formula I obtained may be treated with an alkylating or acylating agent to convert free OH group(s) into alkoxy or acyloxy group(s) and/or treated with a hydrolysing or hydrogenolysing agent to liberate protected OH groups therein and/or reduced to convert an RCO- group into an RCH(OH)- or RCH2-group or treated with hydrogen peroxide or a derivative thereof to convert an RCO- group into a phenolic hydroxy group, and/or treated with an acid to form a physiologically acceptable acid addition salt thereof.  1 - (p - Methoxyphenyl) - 2 - o - hydroxy-phenoxy) - propanol - (1 is prepared by reacting 1 - (p - methoxyphenyl) - propene - (1) with mercury (II) oxide/iodine in moist ether to form 1 - (p - methoxyphenyl) - 2 - iodopropanol - (1) and then reacting this with pyrocatechol.  1 - Phenyl - 1 - (2,6 - dihydroxyphenoxy) - propanol-(2) is prepared by reacting 1-phenyl-propene with H2O2 to form 1,2-epoxy-1-phenyl-propane, treating this with HCl to form 1-chloro - 1 - phenyl - propanol - (2), reacting this with 2,6-dibenzyloxyphenol to form 1-phenyl-1-(2,6 - dibenzyloxyphenoxy) - propanol - (2) and hydrogenolysing the benzyl groups.  1 - (p - Methoxyphenyl) - 2 - (2,6 - dihydroxyphenyl) - propanol - (1) is prepared by reacting 2,6 - dibenzyloxy - phenol with 1 - (p - methoxyphenyl) - 2 -bromo - propanone - (1) to form 1 - (p - methoxyphenyl) - 2 - (2,6 - dibenzyloxyphenoxy) - propanone - (1) and hydrogenolysing the benzyl groups.  Pharmaceutical compositions having oestrogenic, cardioactive and/or antifertility activity, for parenteral, enteral or topical administration, comprise a compound of the Formula I together with a carrier.
Patent GB-1201965-A (GB)
Title: Photoflash lamp
IPC: G03B15/04
Filed: 1968-09-25
Abstract: 1,201,965. Flash-bulbs. SYLVANIA ELECTRIC PRODUCTS, Inc. Sept.25, 1968  [Sept.25, 1967], No.45615/68. Heading G2L. A flash-bulb adapted to be percussively ignited comprises a light-transmitting envelope containing filamentary combustible material and a combustion supporting gas and closed at one end by a primer consisting of a cup 12 having a coined depression 20 formed in the bottom thereof, a charge 16 of fulminating material disposed in the depression, and a flat-faced anvil 14 overlying the charge. The anvil is seated on a rim 22 surrounding the depression and retained in place by a crimp 18.
Patent GB-1364958-A (GB)
Title: Data communication system
IPC: H04L69/14
Filed: 1972-10-04
Abstract: 1364958 Digital transmission; selective connections INTERNATIONAL BUSINESS MACHINES CORP 4 Oct 1972 [27 Oct 1971] 45663/72 Heading H4P Each device in a ring 0-5, Fig. 1, can request connection through a central multiplexer MPX to a control unit CU, but is prevented from monopolizing it. The radial paths effect the multiplexer connection to a device, and the ring path (GO) ensures that each device has only one request at a time. Each device 0-5 includes logic control circuitry, Fig. 4, which receives a connection request signal at the input of an inverter 53 to set a DEVICE REQ flip-flop. The flip-flop enables an AND gate 56 to pass the GO signal, when it reaches the device, to an output DEV REQ AND GO, and this is received at multiplexer logic circuitry (Fig. 2, not shown) by an OR gate (20), causing a latch (10) to be set and MASTER REQUEST signal to be sent to the control unit CU, Fig. 1. When the CU agrees to the proposed connection it sends a signal through inverters (21, 23) at the multiplexer, which appears as -ACK OUT LATE at the input of a latch DEVICE ACK, Fig. 4, and which with the enabled AND gate 56 causes the latch to set and send a signal through inverter 58 to confirm connection and initiate transmission. The flipflop DEVICE REQ as well as having enabled AND 56, also disables an AND 54 to prevent the GO signal reaching OR 51 for transmission to the next device in the ring. To end a connection, inverter 53 input changes, the DEVICE REQ flip-flop resets and an AND gate 61 is disabled, this causing an OR gate (26) at the multiplexer to enable an AND (30) whose output passes: back to the device to reset a LAST SERVICE latch Fig. 4; to an OR (29) to reset the LAST SERVICE latches of all other devices; and to an OR (31) which resets the master request latch (10). The output of the latter now causes: one inverter (11) to reset the DEVICE REQ, flip-flop, Fig. 4, at + MASTER REQ IN thereby blocking any further requests from the device first serviced; and another inverter (22) to cancel the ACK OUT signal from the CU thereby causing an AND gate (27) to send a signal -ALLOW SET LS O to set the LAST SERVICE latch whose output to OR 51 constitutes a GO signal to permit the next device to request connection if it wishes. A priority AND gate 52 enables AND 55 to pass the GO signal straight on to the next device without permitting any request from the local circuit, unless the local circuit itself possesses priority status in which case it blocks AND 52.
Patent GB-1021792-A (GB)
Title: Self-erecting carton
Inventor: LAWRENCE STEPHEN ERNEST
IPC: B65D5/36
Filed: 1963-11-20
Abstract: 1,021,792. Cartons. BOWATER RESEARCH & DEVELOPMENT CO. Ltd. Oct. 15, 1964 [Nov. 20, 1963], No. 45798/63. Heading B8P. The sides 2, 3 and ends 4, 5 of a carton formed from a single blank, Fig. 1 (not shown), are joined by corner webs 20, 30, 40, 50 divided by diagonal fold lines 23, 33, 43, 53, which overlap when folded over against the end wall panel to which they are joined and which also have end wall flaps 25, 35, 45, 55 of the same depth as the end walls extending from the end edges 26, 36, 46, 56 respectively. These end wall flaps also overlap on folding and the several corner webs and end wall flaps are adhesively secured, Fig. 3 (not shown). The blank may be supplied to the user in a folded semi-erected state, Fig. 2 (not shown). On erection the end wall flaps are locked in their folded down positions by tucking the tongues 27 and 37, which are adhesively secured together, through the slit 61 and the tongues 47 and 57 through slit 60.
Patent GB-1466270-A (GB)
Title: Semiconductor devices
IPC: G01F23/24
Filed: 1974-04-29
Abstract: 1466270 Semi-conductor devices MULLARD Ltd 29 April 1974 [17 April 1973] 46220/74 Divided out of 1466269 Heading H1K [Also in Division G1] A semi-conductor device suitable for use as a liquid level senser comprises a sealed metal can 3, a thermally-sensitive resistance element formed by a piece of semi-conductor material 4, e.g. silicon or germanium, in the can, the material being mounted, e.g. by solder, in electrical and thermal contact with the can wall to allow heat exchange between the element and any liquid around the can, a seal 7, e.g. of glass, sealing the can, and leads 5, 6 projecting through the seal and connected respectively with the element 4 via a strip of spring metal 8 and with the wall of the can 3, the walls of the can having a low thermal conductance so that cooling of the thermistor 4 via the side walls of the can is insignificant compared with that via the end wall of the can when the can is immersed in liquid.
Patent GB-1456365-A (GB)
Title: Controlled release composition
IPC: A61K9/28
Filed: 1972-10-06
Abstract: 1456365 Constant release compositions GIST-BROCADES NV 5 Oct 1973 [6 Oct 1972] 46299/72 Heading A5B [Also in Division C6] A constant release composition for use in a liquid medium into which a soluble active material, as defined, is to be released, comprises a core, soluble in the liquid medium and comprising the active material, and a rigid porous coating free or substantially free of substances soluble or swellable in the liquid medium and completely surrounding the core of active material, the coating having been formed by compression of the coating substance about the core. The coating may be a solid polymer such as a copolymer of vinyl chloride and vinyl acetate, a copolymer of vinylidene chloride and acrylonitrile, polyethylene, polymethylmethacrylate or polystyrene, or an inorganic substance such as dicalcium phosphate dihydrate, tricalcium phosphate or anhydrous calcium sulphate.
Patent GB-1169188-A (GB)
Title: Method of Manufacturing Semiconductor Devices
IPC: H01L21/8222
Filed: 1966-10-17
Abstract: 1,169,188. Semi-conductor devices. MATSUSHITA ELECTRONICS CORP. 17 Oct., 1966 [10 Dec., 1965], No. 46349/66. Heading H1K. A diffusion process is performed through a mask having a plurality of apertures spaced by less than twice the diffusion depth of the impurity to form a single region. As shown, Fig. 2, a plurality of slots 8 in an oxide mask 2 may be used to produce a diffused region 6 the thickness of which varies over its area or, if the apertures are sufficiently close together to produce a substantially flat junction, the impurity concentration of the region is less than would be produced by the same diffusion through a single large aperture. The apertures may also be in the form of a pattern of squares, or may form a grid. In a silicon I.C., Fig. 4 (not shown), comprising a transitor, a Zener diode and a resistor diffused into N-type islands (11, 11<SP>1</SP>,11<SP>11</SP>) isolated by a P-type region, the base region (13) of the diode, and the resistor (14) are produced simultaneously by a single diffusion and the emitter region 15 of the transistor and the anode region (17) of the diode are also produced simultaneously, by a further diffusion. The invention is applied to the production of the resistor (14) and the anode region (17) of the diode to obtain lower impurity concentrations in these regions. In a silicon I.C., Fig. 5 (not shown), comprising a pair of complementary junction transistors, the base region (31) of one of the transistors is produced using the method of the invention simultaneously with the emitter region (29) of the other transistor (which is produced using a single aperture). The base region (36) of a high frequency transistor, Figs. 6 and 7 (not shown), may be diffused using the method of the invention to produce a base-collector junction (37) the distance of which varies from the subsequently diffused plane emitter-base junction (39). This produces a base region with thin portions to obtain good h.f. characteristics and a high amplification factor, and thick portions to obtain a low lateral base resistance. The invention may also be applied to a silicon solar cell, Fig. 8 (not shown), to produce a region with thick and thin portions which has a low sheet resistivity without a large reduction in the penetration of sunlight.
Patent GB-1237857-A (GB)
Title: Production of barium ferrite
Inventor: HENEGHAN LEO FRANCIS
IPC: H01F1/11
Filed: 1969-09-22
Abstract: 1,237,857. Barium ferrite. MERCK & CO. Inc. 22 Sept., 1969 [24 Sept., 1968], No. 46575/69. Heading C1A. Barium ferrite is prepared by (a) reacting ferrous sulphate and a carbonate precipitating agent to form a ferrous hydroxycarbonate precipitate, filtering and treating said precipitate with barium carbonate to form barium carbonate-ferrous hydroxycarbonate, drying and calcining; (b) reacting ferrous sulphate and a carbonate precipitating agent as above, treating the precipitate with BaCl 2  and a carbonate precipitating agent to form barium carbonate ferrous hydroxycarbonate, drying and calcining; or (c) adding a carbonate precipitating agent to a mixture of FeCl 3  and BaCl 2  to precipitate ironbarium hydroxycarbonate, drying and calcining. The carbonate precipitating agent may be sodium or ammonium carbonate, preferably an excess of sodium carbonate. The time between precipitation and filtration of the ferrous hydroxycarbonate should not exceed 2¢ hours.
Patent GB-1497582-A (GB)
Title: Steering column assemblies
IPC: B62D1/18
Filed: 1975-11-13
Abstract: 1497582 Adjustable steering columns INTERNATIONAL HARVESTER CO 13 Nov 1975 [21 March 1975] 46876/75 Heading B7H An adjustable steering column comprises a telescopically splined shaft and tube 12, 18 whose relative positions are locked by a wedge member 46 and collar 60, and a washer 42 which allows movement of an upper unsplined shaft portion but prevents passage of a lower splined portion. The wedge member may be in the form of an axially split ring or a number of wedge pieces and may be of metal or plastics. A seating surface 62 on the collar abuts the wedge member so that on screwing down the collar the member traps the shaft. The tube 18 is connected by a pin 28 to a steering gear shaft 30, the latter bearing a resilient cap 82 to prevent shock transfer to the shaft 12 when the column is fully contracted. Shaft 12 is prevented from being pulled out of the tube 18 by the washer 42 engaging the ends of the splines.
Patent GB-1062478-A (GB)
Title: Improvements in or relating to furniture joints
IPC: A47B47/02
Filed: 1963-11-28
Abstract: 1,062,478. Furniture joints. ATELIERS D'ART DE COURTRAI DE COENE FRERES. Nov. 28, 1963 [Nov. 30, 1962; Sept. 17, 1963], No. 47031/63. Heading A4H. [Also in Divisions E2 and F2] Furniture panels 21, 22 (Fig. 2) are secured together by a bolt 24 passed through the thickness of a first panel 22 and into a hole 28 extending from the edge of a second panel 21 to be anchored in the threaded, transverse bore 29 of a cylindrical pin 23 tightly fitted into a hole 25 extending through the thickness of the second panel 21. In a modification (Fig. 8), panels 6, 7 are hinged together by means of hinge parts 2, 3 secured to respective panels 6, 7 by bolts 10, 14 threaded into pins 13, 15. One hinge part 3 comprises a rectangular block forming the head of one bolt 14. The other hinge part 2 is U-shaped and secured by the other bolt 10 in a recess in its associated panel 6. A hinge pin 4 extends through the hinge parts 2, 3 in a position to permit pivoting through 270 degrees.
Patent GB-1387580-A (GB)
Title: Optical arrangement
IPC: G02B23/12
Filed: 1967-10-16
Abstract: 1387580 Telescope, pesiscope ELTRO GmbH & CO GES FUR STRAHLUNGSTECHNIK 16 Oct 1967 [25 Nov 1966] 47117/67 Heading G2J An adjustable optical system permitting an object to have its image produced at different sizes comprises an objective lens 1 forming an image in a focal plane 2 by means of a mirror 3. This image is relatively large and to form a smaller image the mirror is moved to the chain-line position so that the radiation beam arrives at the plane 2 via a mirror 5, lens system 7 and reversing prism 6. In a modification Figs.4 and 5 (not shown) the mirror 3 is replaced by a pair of rightangled prisms. When the hypotenuse surfaces of these prisms touch the prisms are wholly transmissive so that the radiation reaches the mirror 5 whereas when the surfaces are separated the radiation is reflected directly to the plane 2. The radiation, which may be infrared, is detected by an element 13. The system is intended for use in an object locating apparatus and to this end the radiation is frequency modulated by a rotating disc 10 disposed in the plane 2, the disc also being nutated about the optical axis 17.
Patent GB-1471097-A (GB)
Title: Synthetic fibres for paper
IPC: D21H13/10
Filed: 1975-11-17
Abstract: 1471097 Fibrils MONTEDISON SpA 17 Nov 1975 [19 Nov 1974] 47214/75 Heading B5B A solution emulsion or dispersion of a thermoplastic polymer especially from an olefine, acrylonitrile, acrylate, vinyl chloride, vinyl acetate or styrene, in a liquid medium is extruded through a nozzle or pipe 1 in the direction indicated by the arrow 6, where 1 comprises a convergent portion 2, a narrow portion 3 and a divergent portion 4 and is hit in portion 4 by a jet of fluid which has been expanded through jets 5 and is travelling in the direction indicated by the arrow 7. The fluid jet may comprise steam.
Patent GB-1142608-A (GB)
Title: Improvements in or relating to television and like camera tubes
Inventor: SLARK NORMAN ARTHUR
IPC: H01J29/48
Filed: 1966-10-21
Abstract: 1,142,608. Image pick-up tubes. ENGLISH ELECTRIC VALVE CO. Ltd. 26 Sept., 1967 [21 Oct., 1966], No. 47238/66. Heading H1D. An electron gun for use in an image orthicon type of camera tube comprises a cathode 1, a control electrode 3, an apertured accelerating grid 4 having a small aperture 42 adapted to act as the beam defining aperture of the gun, an additional apertured electrode 6, and an apertured dynode 5, the additional electrode 6 being adapted for operation at a negative potential with respect to electrodes 4 and 5 so as, in operation, to remove electrons having a substantial radial component of energy and thereby reduce noise in the output signal of the tube. The gun is specially suitable for use in what is called "Isocon" scanning, i.e. when the beam returned from the target comprises electrons which have landed on the target and been specularly scattered back from its surface. In one example the electrodes 4 and 5 are at + 300 volts and the electrode 6 at + 70 volts relative to the cathode.
Patent GB-1060077-A (GB)
Title: Improvements in or relating to the treating of porous and fibrous materials
Inventor: COOPER KENNETH GRAHAM
IPC: D06M15/643
Filed: 1962-12-14
Abstract: Porous materials are water-proofed by impregnation with an aminoalkyl organopolysiloxane in the form of a salt with an organic or inorganic acid.  The polysiloxane may be a copolymer of an aminoalkyl siloxane and an alkyl siloxane end-blocked with trimethylsiloxy units.  The aminoalkyl siloxane may be methyl (g -aminopropyl or g -aminobutyl) siloxane.  The alkyl siloxane may be dimethyl or phenyl methyl siloxane.  The acid may be acetic, propionic, valeric, decoic, stearic, oleic, benzoic, acrylic, trichloroacetic, benzene sulphonic, p-toluene sulphonic, hydrochloric, sulphuric, phosphoric, or boric acid.  The salt may be applied as a solution in an organic solvent or as a dispersion in water.  The solvent may be toluene, benzene, white spirit, or methyl alcohol.  A 0.1-10% solution or dispersion may be employed. The material treated may be paper, leather, rayon, viscose acetate, nylon, or Terylene.
Patent GB-1120430-A (GB)
Title: Dyeing and/or printing synthetic polyamides
Inventor: BRAUN WILLY
IPC: C09B1/58
Filed: 1965-11-09
Abstract: Synthetic polyamide materials are dyed as printed using amino-anthraquinone dyes having the general formula <FORM:1120430/D1-D2/1> in which Y is oxygen or sulphur, R1 is hydrogen or hydroxyalkyl, R2 is hydrogen, methyl, ethyl or hydroxyalkyl, R3 is hydrogen or an aliphatic radical which may bear a cyclic radical as in cyclohexylethyl, Ar denotes an aromatic hydrocarbon radical which may bear substituents, and n is 1 or 2. Specified synthetic polyamide materials include caprolactam, hexamethylene diamine (adipic acid or similar polyamide forming substances in the form of sheeting, films, fibres, filaments, flock and woven or knitted fabrics.  The dyes may be used in admixture or with other dyes and dyeing assistants and textile assistants may be present.  The materials may be treated in neutral or acid liquors. Examples are given.
Patent GB-1449970-A (GB)
Title: Vehicle-wheel suspension systems
IPC: B60G3/20
Filed: 1974-11-01
Abstract: 1449970 Vehicle suspensions DAIMLERBENZ AG 1 Nov 1974 [7 Nov 1973] 47423/74 Addition to 1329070 Heading B7D In a vehicle suspension having for each front wheel 2 a lower suspension link 5 comprising a transverse front arm 12 connected by a resilient pivot 13 to the superstructure 11 of the vehicle and an oblique rear arm 14 connected by a resilient pivot 18 to a transverse member 16 resiliently mounted on the superstructure, the arms 12, 14 are connected by a pivot 15, the pivot 14 is made radially soft to absorb transverse shocks, and the pivot 18 is made hard in the direction of forces along the arm 14 to obtain neutral steering behaviour during braking. A joint ball 19 on the arm 14 is supported in a housing 21 on the member 16 by resilient elements 20 which are hard in the longitudinal direction of the arm 14 but relatively soft in the transverse direction. A line 23 passing through the pivots 13, 18 intersects or passes close to a line joining the points of connection 17 of the member 16 to the superstructure. A wheel carrier 1 is connected by a joint 8 to the lower link 5 and by a joint 7 to an upper link 4 having an inclined oblique pivot axis 24. A track rod 26 connected to a steering arm 25 on the wheel carrier 1 lies on a straight line which intersects a line joining the connection point 8, 13 of the arm 12 outside the wheel plane so that rearward deflection of the wheel under braking forces tends to cause toe-in of the wheel.
Patent GB-1602296-A (GB)
Title: Current sources
IPC: H03F1/08
Filed: 1977-11-15
Abstract: A current source in which the output current from an output amplifier stage (2) is controlled by an input signal, originating in a signal source (11), to an input amplifier stage (1) incorporates, additionally to a negative feedback path from the current input path of the output stage (2) to the input amplifier (1) monitoring means (5) in the signal input path to the output amplifier (2) and control means (4) in an input path to the input amplifier (1). Monitoring means (5) monitors the current flow in the input path to the output amplifier (2) and applies, via control means (4) a signal to the input amplifier (1) such that the dependence of the current flow in the current output path on the gain of the output stage (2) is reduced. A circuit is described, as well as an application to driving a telephone subscriber line and using two current sources working in push-pull mode.