baber/WOPTO huggingface dataset:
Patent GB-1273594-A (GB)
Title: Rf receiving circuits
IPC: H04B1/10
Filed: 1969-11-13
Abstract: 1,273,594. FET amplifiers; tuning circuits PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 13 Nov., 1969 [16 Nov., 1968], No. 55630/69. Headings H3Q and H3T. [Also in Division H1] A receiver input stage for the reception of RF signals has a parallel tuned circuit including inductance 5 and a variable capacity diode 7 coupling the input signals to the gate of a field effect transistor 9, a first current circuit includes the inductance 5 and the variable capacity diode 7, a second current circuit includes the variable capacity diode and the coupling for the gate and source of the FET 9 and the first and second current circuits are only intercoupled by the variable capacity diode. In the RF amplifier for a radio or television shown i.f. signals are suppressed by filter 3 but interference pulses which would tend to destruct the gate insulation layer 15 pass to the tuned circuit 5, 7 which is tuned to frequencies of the interference pulses which are limited by the variable capacity diode 7. Also these interference pulses have a higher parasitic resonance frequency of a circuit comprising diode 7, capacitors 8 and 20. The input capacity between gate and source and the FET 9 is protected from these parasitic frequencies also by the diode 7. Parasitic inductance 22 in series with the diode 7 must be prevented as this forms a coupling of the parasitic frequency components of the interference pulses to the gate. A small additional protection of the layer 15 can be achieved by connecting in a known manner a limiting diode 23 as shown and a conducting screen 24 may be provided to prevent unwanted coupling. The parasitic inductance 22 can be decreased by using a specially constructed variable capacity diode 7 (Fig. 2a, 2b, not shown), having n and p doped layers (27, 30) and an insulation layer (28) with a conductor (26) connected to the n layer (27) and conductors (34, 35) connected by leads (32, 33) to the player (30). Connections of this diode to the FET of Fig. 1 are described (Fig. 3, not shown). As an alternative to the tuning by the variable capacity diode the inductor 5 may be variable with a constant direct voltage applied to the variable capacitor diode 7. An AGC voltage is applied to a second gate 11 of the MOS FET 9.
Patent GB-1418884-A (GB)
Title: Coating compositions
IPC: C09K23/42
Filed: 1972-12-01
Abstract: 1418884 Unsaturated polyesters and polyurethanes KANSAI PAINT CO Ltd 1 Dec 1972 [3 Dec 1971] 55717/72 Heading C3R A hydrophilic curable resin composition for coating comprises an ethylenically unsaturated and hydrophilic resin component consisting of a linear hydrophilic polyester containing 3 or more equivalents of polymerizable ethylenically unsaturated groups per 1 mole of ethylenically unsaturated and hydrophilic resin, the ethylenically unsaturated and hydrophilic resin having a number average molecular weight of 2000 to 10,000 and containing 40 to 90% by weight of polyether in the main chain of the molecule. Preferably the compositions are prepared by reacting linear hydrophilic carboxylated polyester having free carboxyl groups pendant from the linear hydrophilic polyester structure with ethylenically unsaturated compound(s) containing oxirane oxygen, the linear hydrophilic carboxylated polyester having been formed by polycondensation of dialcohols comprising polyalkyleneglycol of formula in which R<SP>1</SP> represents a hydrogen atom or a methyl radical and n represents a positive integer of from 6 to 50 inclusive, and used in such an amount that from 40-90% of the ethylenically unsaturated and hydrophilic resin comprises the polyalkylene glycol portion, and 2 to 4 valent polycarboxylic acids, e.g. trimellitic acid (and anhydride), hemimellitic acid, trimesic acid, pyromellitic acid, and benzenepentacarboxylic acid, the ethylenically unsaturated compound(s) containing oxirane oxygen being selected from glycidyl acrylate, glycidyl methacrylate and allyl glycidyl ether. Alternatively the linear hydrophilic polyester may be reacted with ethylenically unsaturated isocyanate compound(s). Examples describe the preparation of such compositions from (1) polyethylene glycol, pyromellitic anhydride, methylethylketone, glycidyl methacrylate and hydroquinone (2) polyethylene glycol, maleic anhydride, α,α - dihydroxymethyl propionic acid, glycidyl methacrylate and acetone, (3) polyethylene glycol, maleic anhydride, trimellitic anhydride, dodeoylsuccinic anhydride and methyl ethyl ketone (4) as in (3) but with added polypropylene glycol and glyceral and (5) an unsaturated polyurethane from tolylene diisocyanate, 2-hydroxyethyl methacrylate and the condensate of polyethyleneglycol and dimethyl terephthalate.
Patent GB-1367420-A (GB)
Title: Integrated circuits
IPC: H01L27/12
Filed: 1972-12-12
Abstract: 1367420 Semi-conductor devices SIEMENS AG 12 Dec 1972 [17 Feb 1972] 57299/72 Heading H1K An integrated circuit comprises an insulant substrate of spinel or sapphire with a semiconductor layer 2 of, e.g. Si forming plural separated islands. An insulant intermediate layer 3 of SiO 2  or Si 3 N 4  is applied to the intervening substrate areas, and metallic conductor paths 4 of, e.g. Al are applied to the surface of the layer with a terminal electrode of, e.g. Al wire ultrasonically contacting the layer. In fabrication a monocrystalline Si zone is deposited on the polished and etched substrate, and semi-conductor zones are diffusedly doped therein photolithographically, and separated from one another by etching to leave islands. After application of the intermediate layer conductive Al paths are vapour deposited photolithographically. The intermediate layer of SiO 2  is produced by thermal reaction of SiH 4  or tetra ethoxy silane and oxygen, and Si 3 N 4  by thermal reaction of SiH 4  and NH 3  followed by compression at elevated temperature. In formation of FETs, the insulant layer is photolithographically removed, and the gate insulator of SiO 2  or SiO 2  + Si 3 N 4  is deposited.
Patent GB-1292857-A (GB)
Title: Improvements in and relating to blinking indicator devices for vehicles
IPC: B60Q1/38
Filed: 1969-11-24
Abstract: 1292857 Voltage testing ROBERT BOSCH GmbH 24 Nov 1969 [22 Nov 1968] 57310/69 Heading G1U [Also in Divisions G4 and H3] A lamp failure indicator for a vehicle turn indicator system in which at least three flasher lamps are connected in parallel comprises: a switch 36 controlled by the sum of the flasher lamp currents such that it is responsive to the peak current of a predetermined number of lamps; and means 39, 40, 41 for protecting the circuit against the effects of variations in supply voltage. In one embodiment, a relay is provided with a current winding 38 which will close switch 36 to light lamp 33 if the peak current of three lamps 11, 12, 13 or 14, 15, 16 passes through it, but will not close the switch if only two lamps function. Protection against supply variations is effected by a voltage winding 39 which opposes current winding 38.  In an alternative embodiment, Fig. 4, the current being monitored develops voltage pulses across resistor 56, which are amplified by transistors T2, T3 to provide control voltages for switches T1, T1'. If all three lamps function, the potentials at the bases of T1, T1' are sufficient for both to switch and both lamps 33, 33' light. If one flasher lamp fails only transistor T1' switches, and if two lamps fail, neither T1 nor T1' switch. Compensation for supply variations is effected by diodes 78, 84. In a further embodiment, Fig. 3 (not shown) the voltage pulses across resistor 56 switch a transistor monostable circuit to light a monitor lamp. The resistor 56 is in the emitter circuit of one transistor (T2) of the monostable, and the supply voltage compensation is effected by virtue of a resistor (58) in the base bias circuit.
Patent GB-1378168-A (GB)
Title: 6alpha-fluoro-16alpha,18-dimethyl-delta1,4-pregnadiene-3,20-diones
IPC: C07J5/00
Filed: 1971-12-13
Abstract: 1378168 6α-Fluoro-16α,18-dimethyl-#<SP>1,4</SP>-pregnadiene-3,20-diones SCHERING AG 13 Dec 1971 [30 Dec 1970] 57783/71 Heading C2U Novel steroids of the formula (wherein R is H or acyl, X is F, Cl or Br and Y is a halogen atom of atomic weight equal to or smaller than that of X or a hydroxyl group) are prepared by addition of 2-halogen atoms or the elements of a hypohalous acid to the corresponding #<SP>9(11)</SP>-steroids. Resulting 9α-chloro or bromo-11#-ols may be converted to 9#,11#- epoxides and these reacted with HF or HCl to give 9α-fluoro or chloro-11#-ols. 21-Esters may be hydrolysed and the free ols acylated. 6α - Fluoro - 21 - acetoxy - 16α,18 - dimethyl- #<SP>1,4,9(11)</SP>-pregnatriene-3,20-dione is prepared from 18-methyl-#<SP>5(10)</SP>-estren-3#,17#-diol (prepared by reduction of the 3-one) via 18-methyl-5,10#- methylene-estran-3,17-dione, 18-methyl-#<SP>4</SP>-androstene-3,17-dione, 18-methyl-#<SP>5</SP>-androstene-3,17- dione, the corresponding 3#-ol, 3#-hydroxy and acetoxy-18-methyl-17α-ethynyl-#<SP>5</SP>-androsten-17#- ol, 3#-acetoxy-18-methyl-#<SP>5,16</SP>-pregnadien-20-yne, 3# - acetoxy - 18 - methyl - #<SP>5,16</SP> - pregnadien - 20- one, 3#-hydroxy-16α,18-dimethyl-#<SP>5</SP>-pregnen-20- one, 21-iodo-3#-hydroxy-16α,18-dimethyl-#<SP>5</SP>-pregnen-20-one (via the 21-ethoxalyl compound) 3#- hydroxy - 21 - acetoxy - 16α,18 - dimethyl - #<SP>5</SP>- 6#-fluoro-5α-bromo-3#-hydroxy- 21 - acetoxy - 16α,18 - dimethyl - pregnan - 20- one, the corresponding 3-one, 6α-fluoro-21- acetoxy - 16α,18 - dimethyl - #<SP>4</SP> - pregnene - 3,20- dione, the corresponding 11α-ol (prepared by hydroxylation with Aspergillus ochraceus), 6α- fluoro - 11α,21 - dihydroxy - 16α,18 - dimethyl- #<SP>1,4</SP>-pregnadiene-3,20-drone (prepared by dehydrogenation with Bacillus lentus), the corresponding 21-acetate and 6α-fluoro-11α-mesyloxy- 21 - acetoxy - 16α,18 - dimethyl - #<SP>1,4</SP> - pregnadiene-3,20-dione. Other 21-acylates are prepared similarly.  The novel steroids are antiphlogistics and may be made up into pharmaceutical compositions with suitable carriers.
Patent GB-1294349-A (GB)
Title: Improvements in or relating to high speed aircraft
IPC: B64C1/00
Filed: 1969-11-28
Abstract: 1294349 Retractable aircraft stabilizers AVIONS MARCEL DASSAULT 28 Nov 1969 [30 Dec 1968] 58242/69 Heading B7G A supersonic aircraft comprises a fuselage, a main wing 1, Fig. 1, and a retractable stabilizer comprising aerofoils 6, 7 adapted and profiled for subsonic flight conditions (Fig. 4, not shown) and arranged to produce, when deployed, a lift giving rise to a nose-up pitching moment (Fig. 3, not shown). Each stabilizer aerofoil 6 may be retracted into a rectangular opening 10 closed off by moving flaps 11, 12. Within the fuselage, the aerofoils terminate in arms 13, 14 (Fig. 5), pivotable about axes AA, BB and connected by means of crank arms 17, 18 and links 19, 20 to the arms 21, 22 of a lever 23 which is pivoted about an axis C-C by a jack; operation of this jack causes, by means of the above mechanism, extension and retraction of the aerofoils 6, 7 about the axes AA, BB. When deployed, each aerofoil bears against the top part of its bottom flap 12, Fig. 8, which pivots about pivot pin 37 against the action of a leaf spring 38. Each aerofoil also lifts its top flap 11 against the force of springs 34 bearing on the rear extensions 33 of parallel arms 30; these are restrained by adjustable stops 36 and connected to the upper flap 11 by pivots 32, so that rotation of flap 11 thereabout allows the flap to follow as closely as possible the curvature of the top part of the aerofoil section. The top flap may be divided into two or more parts. The aerofoils may alternatively be retracted towards the rear, rather than the front, of the fuselage, and the stabilizer may be located to the rear of the main wing instead of forwardly thereof.
Patent GB-1288286-A (GB)
IPC: F16C33/78
Filed: 1969-12-04
Abstract: 1288286 Sealing bearings NADELLA and A PITNER 4 Dec 1969 [4 Dec 1968] 59181/69 Addition to 1153987 Heading F2A A needle bearing has a seal consisting of a resilient annular sealing ring 6 supported against a face of a radial shoulder 4 of the cylindrical housing 1, and a rigid washer 8 which is located between the sealing ring and the adjacent ends of the needles of the edge of a needle cage 2. The sealing ring has an axially extending flange 7 of V-shaped cross-section, the apex 16 pointing towards the axis of the bearing and slidingly and sealingly engaging the inner race of the bearing. (For Figure see next page,)
Patent GB-1455463-A (GB)
Title: Equipment for supplying containers filled with cigarettes to the supply hopper charging mechanism on cigarette packeting mach ines
IPC: A24C5/352
Filed: 1973-12-20
Abstract: 1455463 Filling hoppers; reciprocating of endless conveyers E SERAGNOLI and M T CHIANTORE [trading as GD SpA]) 20 Dec 1973 [1 March 1973] 59249/73 Headings B8A and B8S Apparatus for feeding containers filled with cigarettes to and empty containers from a supply hopper of a cigarette packaging machine comprises separate, similar, substantially horizontal conveyers TC and (TC<SP>1</SP>) feeding the containers to and from upright conveyers E 1  (E 2 ) respectively, and means to feed a filled container from conveyer E 1  to the supply hopper and an empty container to conveyer (E 2 ), each conveyer TC (TC<SP>1</SP>) comprising a pair of belts 1, 2, belt 1 being driven through clutch (16) from the drive of belt 2, with clamps 52 on spring pressed arms 51 holding a container positioned on each belt 1 and thus causing the clutch (16) to slip while belt 2 feeds the leading full container CP<SP>1</SP> to or the next empty container from the upright conveyer E 1  (or E 2 ). The arms 51 are moved apart by cams, causing the clutch (16) to drive the the belt 1 to deliver or receive the next container. The leading container CP<SP>1</SP> is guided by reciprocable surfaces 34 on to a lifting trolley CE of conveyer E. The trolley is pivoted to a slide 65 movable up a shaft 68 by a belt 70 and cam bars 79 control the orientation of the trolley on the slide. The trolley lifts the container CP<SP>1</SP> to clamps SA 2  of a overhead carriage SA. The carriage is mounted on a threaded rod for movement to the hopper and is unloaded as in Specification 1,200,121 and 1,274,323. The carriage brings back an empty container to trolley (CE<SP>1</SP>) of the conveyer (E 2 ). The empty container is lowered to the conveyer (TC<SP>1</SP>) having surfaces (34) to guide it on to the belt (2) of the conveyer to be held by the clamps (52).
Patent GB-1428359-A (GB)
Title: Electrical connectors
IPC: H01R4/24
Filed: 1971-12-21
Abstract: 1428359 Terminals COMMUNICATIONS PATENTS Ltd 21 March 1973 [21 Dec 1971] 59350/71 Heading H2E A terminal post 1 has insulation-piercing sides of a parallel-sided slot 8, and these sides are splayed apart so as to present a tapering gap, Fig. 3, into which an insulation-covered wire (not shown) may be placed transversely. An external annular member (not shown), which may consist of a ferrule or eyelet, is forced over the tapered tip portions 6, having the effect of closing the splayed arms until the post is restored to its original cylindrical form, and thereby the sides of the slot penetrate the insulation, to make electrical contact with the wire conductor. An axial bore 7 extends for the length of slot 8. Stem 2 may serve as an electrical connection, such as to a printed circuit board, and shoulder 3 may abut a circuit board.
Patent GB-1223628-A (GB)
Title: A heatable electrical conductor rail and support assembly
Inventor: HILLMAN WILHELM
IPC: E01B7/24
Filed: 1968-12-17
Abstract: 1,223,628. Heated conductor rails. PAUL VAHLE K.G. 17 Dec., 1968, No. 59911/68. Heading B7L. [Also in Division H2] An electrical conductor rail 11 overlaps the top face of the web of a plastics support 12 provided with a cavity 121 containing an electrical heating conductor 13, heated air passing by convection from the cavity 121 through holes 124 into a duct formed by grooves 111, 123 respectively in the rail 11 and in the support 12. The support is installed by means of clips engaging the flanges 125, or by screws passing through the flanges 125.
Patent GB-1402460-A (GB)
Title: Reading thermoluminescent dosimeters
IPC: G01T1/115
Filed: 1972-12-29
Abstract: 1402460 Thermo-illuminescent dosimeters ATOMIC ENERGY OF CANADA Ltd 29 Dec 1972 [7 Jan 1972] 60119/72 Heading G1A In an apparatus for measuring the dosage received by a thermo-illuminescent dosimeter wherein the dosimeter 16 is placed in thermal contact with a heated surface 19 (a hot anvil), hot enough to empty all the dosimeters electron traps within a fixed period, a temperature sensing device (thermocouple) 24 is placed on a surface of the dosimeter 16 not in contact with the heated surface 19 and in between the dosimeter's surface and a light pipe 23 leading to a light sensing means (a photo-multiplier). By integrating the photomultiplier's output a measurement of the amount of radiation dose received by the dosimeter can be obtained. The thermocouple monitors the temperature of the dosimeter and when it reaches a predetermined level the hot anvil is withdrawn Fig. 3 (not shown). The automatic processing of a number of thermo-illuminescent dosimeters in series is described.
Patent GB-1384398-A (GB)
Title: Polymerization process for preparing fluoroelastomer
IPC: C08F214/28
Filed: 1971-12-30
Abstract: 1384398 Polymerizing fluoroolefins DAIKIN KOGYO CO Ltd 30 Dec 1971 [30 Dec 1970 30 Nov 1971 (3)] 60709/71 Heading C3P A fluoroelastomer is prepared by polymerizing hexafluoropropene, vinylidene fluoride and optionally tetrafluoroethylene in aqueous suspension with a liquid halogenated hydrocarbon using an initiator soluble in organic solvents at a temperature of 1-45‹ C. and pressure of 1 to 30 kg./cm.<SP>2</SP>G to give a polymer having a composition based on the sum of hexafluoropropene, vinylidene fluoride and tetrafluoroethylene, lying in the rectilinear area defined by the molar ratios of hexafluoropropene: vinylidene fluoride : tetrafluoroethylene of 8 : 92 : 0; 34 : 66 : 0; 42 : 28 : 30; 16 : 54 : 30. Suspension stabilizers, chain transfer agents, &c. may also be added to the polymerization mixture. In examples the monomers were polymerized in water containing, as liquid hydrocarbon 1,1,2 - trichloro - 1,2,2 - trifluoroethane, excess hexafluoropropene, or trichlorofluoromethane which also acted as a chain transfer agent. Initiators used include di-(3,5,6- trichloro - 2,2,3,4,4,5,6,6 - octafluorohexanoyl) peroxide, diisopropyl peroxydicarbonate, acetylcyclohexyl sulphonyl peroxide, diisobutyryl peroxide and di-(t.-butylcyclohexyl) peroxydicarbonate. Methyl cellulose and polyvinyl alcohol were used as suspension stabilizers and in some examples trichlorofluoromethane, isopentane or carbon tetrachloride was added as chain transfer agent. The fluoroelastomers obtained were cured by heating with magnesium oxide, carbon and hexamethylenediaminecarbamate. Reference has been directed by the Comptroller to Specification 1,260,611.
Patent GB-1246738-A (GB)
Title: Antenna system for capacitance responsive circuit
IPC: H03K17/955
Filed: 1969-12-15
Abstract: 1, 246, 738. Detecting presence. WAGNER ELECTRIC CORP. Dec. 15, 1969 [Dec. 16, 1968], No.60969/69. Addition to 1, 195, 288, Heading G1N. In a capacitance-responsive proximity detector circuit for use in automatically flushing a urinal, the antenna 14 is surrounded by a ring electrode 15 and an electrically conductive shield 16 is connected via tab 17 and spring contact 19 to the ring electrode and hangs from hooks 18 which engage electrically insulating protrusions 44, 46 on the earthed back plate 30. The antenna 14 is connected via spring 28 and the central conductor of a coaxial cable 22 to the rest of the circuit in box 40. The ring electrode 15 and shield 16 are connected to the outer conductor of the coaxial cable. An adjustable capacitor (not shown) is connected between the inner and outer conductors of the cable 22. A dielectric encasement 10 encloses the apparatus which in use is placed on the top ledge of the urinal. 52 denotes the water pipe.
Patent GB-1291850-A (GB)
Title: Process for preparing penicillin derivatives
IPC: C07D499/64
Filed: 1969-12-24
Abstract: 1291850 Amino-penicillin arylsulphonates AMERICAN HOME PRODUCTS CORP 24 Dec 1969 [24 Dec 1968] 62867/69 Headings C2A and C2C Novel acid-addition salts of amino-penicillins and arylsulphonic acids, having the general Formula 1 or an ester or amide thereof, wherein R is an amino-containing aliphatic or aromatic residue, R<SP>9</SP> is a substituted or unsubstituted aryl group, R<SP>10</SP> is an oxygen atom or a direct bond and R<SP>11</SP> is phenylene or alkylene, are prepared by treating an aqueous solution of a corresponding amino penicillin or a salt, ester or amide thereof, with a sulphonic acid of formula or a salt thereof, at pH 0À5 to 3À5 and isolating the resulting precipitate of the acid-addition salt. The amides or esters may then be hydrolysed to the sulphonate of the free penicillanic acid, e.g. enzymically or chemically. Aminopenicillins may be those wherein R is optionally substituted α-aminobenzyl, α-aminocycloalkyl, α - aminocycloalkenyl, or α - amino - 1- or 2- indanyl. The amino group may be primary, secondary or tertiary, and may be linked to the 6-nitrogen atom of the penicillin by a group -CR<SP>16</SP>R<SP>17</SP>-, wherein R<SP>16</SP> and R<SP>17</SP> separately are H, alkyl or phenyl or together with the carbon atom form a cycloalkyl ring, such compounds being adducts of ketones of formula R<SP>16</SP>.CO.R<SP>17</SP> with the ammo-penicillin. R<SP>9</SP> may be, e.g., phenyl, biphenyl, naphthyl, phenylcarbamylphenyl or phenylcarbamyl naphthyl. The sulphonic acid or its salt is preferably added as an aqueous solution, and the reaction mixture may contain a water-immiscible solvent, e.g. esters, ketones, or aromatic or aliphatic hydrocarbons which may be halogenated. The preparation of the acid-addition salts is useful as a means for purifying amino-penicillins formed, e.g., by acylation of 6-APA, from byproducts and starting materials, the acidaddition salt being precipitated from the crude reaction mixture and subsequently converted to the amino-penicillin, e.g. by hydrolysis with an amine or an inorganic base. Biphenylsulphonic acid monohydrate and diphenylethersulphonic acid monohydrate are prepared by reacting biphenyl, and diphenylether respectively, with chlorosulphonic acid. The following compounds are each reacted with propane-sultone in alcoholic NaOH: salicylanide, -naphthol #-naphthol, 2-hydroxydiphenyl, 4-hydroxydiphenyl, and 2- hydroxy-1-naphthoic anilide to give sodium 3- substituted propanesulphonates wherein the substituent group is: 2-carbanilidophenoxy, 1- naphthoxy, 2-naphthoxy, 2-phenylphenoxy, 4-phenylphenoxy, and 1-carbanilido-2-naphthoxy respectively. Pharmaceutical compositions having antibiotic activity against Gram-positive and Gramnegative bacteria comprise an amino-penicillin acid-addition salt of Formula 1 as previously defined herein in association with a pharmaceutically acceptable carrier.
Patent GB-2022329-A (GB)
Title: Edge connectors for printed circuit boards
IPC: H01R12/89
Filed: 1978-07-18
Abstract: An electric connector includes an insulating housing (10) having a base (11) and two side walls (12, 13). These define a longitudinal slot (14) into which the edge of a printed circuit board may be inserted. Walls (16) define transverse openings (15) extending from the longitudinal slot (14), each opening containing a contact member (17) having a contact portion (18) which may extend into the longitudinal slot (14). Control means are provided comprising a bar (22) movable along the longitudinal slot (14), the bar being supported such that movement in one direction causes the bar (22) to rise in the slot to move the contact members out of the slot to allow the board to enter freely, while subsequent movement in the opposite direction causes the bar to move downwardly to allow a contact portion 18 of each member 17 to engage the inserted board. <IMAGE>