baber/WOPTO huggingface dataset:
Patent GB-1420086-A (GB)
Title: Methods of making semiconductor devices
IPC: H01L21/768
Filed: 1972-12-21
Abstract: 1420086 Semi-conductor devices WESTERN ELECTRIC CO Inc 21 Dec 1972 [28 Dec 1971] 59067/72 Heading H1K An inversion-channel-stopping layer 32 is provided for an integrated circuit by implantation into the entire unmarked surface of a semi. conductor body, and the areas in which circuit components are to be provided are then subjected to a second implantation process through a mask 33, the second implantation being such that the first-implanted impurities are at least partly compensated at the component areas. The reversal of conductivity type takes place during the second implantation. Component regions, such as the source and drain regions 37, 38 of an IGFET, may then be formed in the compensated area without the need for any mask registration. The compensating implantation may be made through the gate insulation 35. For a Si integrated circuit the first and second implantations may be respectively of P and B or of B and P, As or Sb. Charge-coupled devices are referred to.
Patent GB-1192017-A (GB)
Title: Dibenzoxaza- and Dibenzothiaza- Heterocyclic Compounds
IPC: C07D403/06
Filed: 1967-04-17
Abstract: 1,192,017. Dibenzoxaza- and dibenzothiazaheterocyclic compounds. E. R. SQUIBB & SONS Inc. 17 April, 1967 [29 April, 1966], No. 59310/69. Divided out of 1,192,016. Heading C2C. The invention comprises novel dibenzoxaza- and dibenzothiaza-heterocyclic compounds of the Formula III wherein R is H, C 1-7  alkyl, or monocyclic aryl; R<SP>3</SP> and R<SP>4</SP>, which may be the same or different, each are H, halogen, C 1-7  alkyl, C 3-7  cycloalkyl, CN, C 1-7  haloalkyl, C 1-7  alkoxy, C 1-7  alkylthio, C 1-7  alkylsulphinyl, C 1-7  alkylsulphonyl, C 1-7  haloalkoxy, C 1-7  haloalkylthio, sulphamoyl or N,N-di-(C 1-7  alkyl) sulphamoyl; X is O or S, m is 0 or 1; n is 0, 1 or 2; and p is 0, 1 or 2; wherein when m is 0, n is 1 and p is 2, or n is 2  and p is 0; or wherein when m is 1, n and p are each 0, 1 or 2, the sum of m+n+p being 2 or 3, except X must be oxygen whenm and p are both 1 and n is 0; and acid addition salts thereof. Compounds of the above genera 1 formula in which -(CHR) m - is -CH 2 - are prepared by reducing compounds of the formula and compounds in which m is 0, n is 1 and p is 2 by hydrolysing an aldehyde of the formula Similarly compounds of the above genera Formula III in which m is 0, n is 2 and p is 0 are made by hydrolysing the appropriate aldehyde. 5,10,12,13 - Tetrahydrodibenz[c,f][1,5]oxazonine-5-carboxaldehyde is obtained by cyclizing 2 - [2 - oromophenethoxymethyl]formanilide, prepared by reacting formic acid with 2-[2-bromophenethoxymethyl]aniline, which is made by reducing 2-bromophenethyl-2-nitrobenzyl ether resulting from the reaction between 2-bromophenethyl alcohol and 2-nitrobenzyl bromide. 4 - Fluoro- 2 - nitrobenzyl bromide is obtained by brominating 4-fluoro-2-nitrotoluene. 2 - Amino - 4 - chlorobenzenethiol is prepared by adding sodium hydroxide to a suspension of the corresponding hydrochloride in hexane.
Patent GB-1270547-A (GB)
Title: Conveyor apparatus
IPC: B65G37/00
Filed: 1969-12-08
Abstract: 1,270,547. Endless conveyers. TSUBAKIMOTO CHAIN MFG CO. Ltd. 8 Dec., 1969 [6 Jan., 1969], No. 59816/69. Heading B8A. An endless conveyer for conveying goods along an inclined path comprises an endless slat conveyer 2, the slats 3 of which have operatives 5 to communicate with a vacuum chamber 1 and an endless belt 12 to overlay the goods on the slat conveyer and be urged thereagainst by the vacuum. The suction chamber 1 is substantially trough shaped with seals 7 extending from the limbs to bear against the underside of the slat conveyer. The slat conveyer mounts rollers 8 to be received in guides 6 and also mount guides 32 which in conjunction with stationary guides 13 ensure that chains 11, which form the edges of the conveyer 12, are in abutment with the slat conveyer during the conveying run. The slat conveyer and the conveyer 12 are driven at similar speeds.
Patent GB-1415648-A (GB)
Title: Catalyst suitable for use in polymerisation of 1-olefins
IPC: C08F10/02
Filed: 1971-12-23
Abstract: 1415648 Polymerisation catalysts BP CHEMICALS INTERNATIONAL Ltd 12 Dec 1972 [23 Dec 1971] 59956/71 Heading B1E [Also in Division C3] Phillips catalysts are activated by impregnation with a solution of ethyl titanate and heating at 250-1200‹C in the presence of the ethyl titanate. The catalysts comprise an oxide of chromium on SiO 2 , Al 2 O 3 , ZrO 2  and/or ThO 2 .
Patent GB-1237680-A (GB)
Title: Flow metering apparatus, particularly for combustion engine fuel control
IPC: F02D3/02
Filed: 1969-12-12
Abstract: 1,237,680. Gas turbine engine fuel systems. BENDIX CORP. Dec. 12, 1969 [Dec. 20, 1968], No. 60755/69. Heading F1G. A gas turbine engine fuel system comprises a by-pass valve 78 for maintaining a constant pressure drop across the fuel metering valve 72, and a dashpot connecting the by-pass valve to the operating spindle 58 of the metering valve to temporarily restrict movement of the by-pass valve in response to its actuating piston 80 whereby when the metering valve moves in response to a variation in a control signal, the by-pass valve initially moves in unison with it and the actuating piston subsequently resumes control of the by-pass valve. The dashpot comprises a piston 90 co-operating with chambers 92, 94, interchange of fuel between the chambers taking place through restrictors 96, 98 communicating via a duct 100 and a line 30 with the low-pressure side of the fuel pump 24. The metering valve 72 is actuated by a piston 102 subjected to a variable pressure difference between its opposite faces produced by the flow through a restrictor 114 controlled by a variable leak-off valve 116 carried by a beam 118 pivotally connected to a manual control 32 and to a senser 36 which senses an engine operating condition dependent on fuel flow, such as engine speed or an engine-generated temperature or pressure. If the metering valve 72 is being carried in, say, an upward direction to decrease the fuel flow, the by-pass valve 78 is initially carried upwards with it by virtue of the dashpot action, thereby increasing the by-pass flow to reinforce the action of the metering valve in reducing the fuel flow to the engine. The decrease in the pressure drop across the metering valve 72 caused by the opening movement of the by-pass valve 78 is greater than the increase caused by the closing movement of the metering valve, the net decrease allowing a spring 74 to move the metering valve relative to the spindle 58 to reduce the opening of a leak-off valve 68 which controls the flow through a restrictor 82. The resultant increase in the pressure above the piston 80 allows the piston to gradually overcome the resistance of the dashpot and move the by-pass valve 78 in a closing direction, thereby increasing the pressure drop across the metering valve 72. This increases the opening of the leak-off valve 68, which in turn decreases the pressure above the piston 80. This, in conjunction with the negative feedback to the beam 118 produced by the response of the sensor 36 to the reduction of fuel flow, stabilizes the system at the required fuel flow rate.
Patent GB-763903-A (GB)
IPC: F02G1/043
Abstract: 763,903. Hot-gas engines. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Jan. 12,1955 [Jan. 13, 1954], No. 969/55. Drawings to Specification. Class 7 (1). [Also in Group XIII] In a hot gas engine, the ratio between the length and the hydraulic diameter of each working medium 'duct of the cooler is at least 20.M<SP>0.19</SP> and at most 55.M<SP>0.19</SP> where M is the molecular weight of the working medium. Specification 695,857 [Group XIII] is referred to.
Patent GB-2000305-A (GB)
Title: Weighing scale
IPC: G01G1/38
Filed: 1978-06-16
Abstract: A weighing scale, particularly an analytical balance, has a pan 12 which is counterbalanced by a rod or shaft 31, 32 along which a balance weight 22 is movable. A balance detector 20 detects a condition of balance. The weight may be moved along the rod or shaft by a motor-leadscrew 15, 21 arrangement. The rotation of the leadscrew is measured and used to indicate the weight of the load on the pan. The balance detector may be a null transducer comprising first and second bands 36, 37 e.g. of spring strip, and a third band 70 which carries strain gage means. The balance weight is supported on rollers separately from the leadscrew and a journal movable along the leadscrew is biassed by a predetermined amount into contact with the leadscrew, and is connected to the balance weight. <IMAGE>
Patent GB-2007797-A (GB)
Title: A method and a device for the fabrication of a wrapped drain for soil drainage and an improved wrapped drain
IPC: E02B11/00
Filed: 1978-10-09
Abstract: A wrapped drain for soil drainage is constituted by a perforated tube 10 surrounded by a filter sheath 12 for retaining solid materials. The filter sheath is progressively applied around the tube in order to cover the tube completely, the edges of the sheath being so arranged as to overlap. A continuous fastening component 21 of substantial length is progressively introduced between the overlapping edges before they are applied against each other, fastening elements being adapted to penetrate intimately into the filter sheath structure. <IMAGE>
Patent GB-2008660-A (GB)
Title: Locking Device in Hinged Door or Window
IPC: E05B63/18
Filed: 1978-10-24
Abstract: A locking device for hinged doors (1) or windows is proposed in which a lock bolt (5) protrudes or retracts to engage or disengage a bolt receptacle in the door frame by turning a handle (3). The locking device avoids inadvertent closing of the door (1) with the lock bolt (5) protruding (as would cause damage to the lock bolt per se, door frame and the like) by virtue of locking the lock bolt (5) in its retracted position when the door (1) is not in the closed position effected by the linkage motion of a detector means (9) at the free end peripheral surface of the door in contact or not in contact with the door frame according to the position of the door (1) relative to the door frame. <IMAGE>
Patent GB-2033002-A (GB)
Title: Sound insulation of engine combustion chambers
IPC: F02B77/13
Filed: 1978-10-31
Abstract: An open cell sintered pure metal, alloy or ceramic forms the inside lining of the combustion chamber. The sintered material may be covered with a titanium membrane.
Patent GB-2007945-A (GB)
Title: Record noise suppression system
IPC: H03G3/34
Filed: 1978-11-10
Abstract: A circuit for suppressing audio frequency noise in a signal originating from a gramophone record. A known noise suppressing circuit comprises a signal processing section including a delay circuit coupled between an input and a noise suppressor. Where noise is being suppressed, the noise suppressor by-passes the delay circuit for a fixed period of time. During this time, if noise does occur on the input, it cannot be suppressed. This problem can be overcome by providing a circuit including a signal processing section (9) arranged between an input (1, 2) and an output (3, 4). The signal processing section (9) is provided with a delay unit (7) and a noise suppressor (8) coupled to the delay unit (7). The circuit also comprises a control signal section (10) connected to the input (1, 2) which section is provided with a noise detector (32) which is coupled by a function generator (34) to a control input (49) of the noise suppressor. At the occurrence of noise the audio signal derived from the record is suppressed inaudibly during a short constant period of time. (Figure 1). <IMAGE>
Patent GB-2010371-A (GB)
Title: Improvement Relating to Tumbler Locks
IPC: E05B29/06
Filed: 1978-12-01
Abstract: A tumbler lock has a plurality of tumblers 2 mounted in a frame member moveable between a locked position and an unlocked position, by a key of appropriate configuration engaging with cooperating surfaces provided on the tumblers. The lock has as locating means openings in the frame member 3, for holding the tumblers in a predetermined spaced apart relationship within the lock. A key 1 for use with such a lock has stepped surface portions located at intervals along the length of the key and interconnected by bevelled riser portions, the tumbler engaging portions of the key being of constant width 'a' which is equal to the length of the apertures in the tumblers 2. The lock rotor frame 3 is formed by pressing a plate and has formations 3-A which enclose a pin 4-1 which limits the movement of tumblers 2 by engaging shoulders thereon. <IMAGE>
Patent GB-2014292-A (GB)
Title: Method of Cooling Process Gases which are at a High Pressure and High Temperature
IPC: B01D1/06
Filed: 1979-01-30
Abstract: Gas at high pressure and high temperature is cooled by water flowing by natural circulation through a U-shaped tube system in contact with the gas, the heat removed from the gas being used to generate steam. The water is conveyed inside the U- tube system substantially without heat absorption until it is in the immediate vicinity of the lowest point of the natural circulation path.
Patent GB-2015693-A (GB)
Title: Hydropneumatic shock absorbers
IPC: F16F9/06
Filed: 1979-02-23
Abstract: Damping apparatus, for example a shock absorber or spring strut for vehicles, comprises a cylinder 1 in which a piston rod 2 is guided axially movably and is sealed and a piston 3 fastened to the piston rod 2 and provided with damping devices for the tension and compression stages. The piston 3 divides the cylinder interior into two working chambers 4, 5 which have a liquid filling. One working chamber 4 is defined by the piston rod 2 and the cylinder 1 and the other working chamber 5 is in communication via a permanently open passage 7 with a compensating chamber 6 having a liquid-filled portion and a gas-filled, pressurised portion. According to the invention; the permanently open passage 7 is so dimensioned that at low piston speeds only the gas pressure prevailing in the compensating chamber 6 counteracts the damping force in a compression direction, and at a higher piston speed a pressure acting additionally to the gas pressure is built up in the other working chamber 5. This construction enables a reduced gas pressure to be used, which minimises sealing problems. <IMAGE>
Patent GB-2021429-A (GB)
Title: Dispensers for sterile liquids
IPC: A61J1/14
Filed: 1979-04-12
Abstract: A container for dispensing a sterile liquid is provided with a sterilising filter through which all liquid dispensed from the container must pass, said filter not being readily removable from the container. The sterilising filter may be a microporous membrane (12) integral with the container body or integral with a separate member attached to the container body. The container may be an applicator (8) for eye drop solution having a nozzle (16) surrounded by an annular wall (17) to minimise contact between the nozzle and the eye. The container may be non-resilient and collapsible or it may be resilient in which case the membrane has a water-repellent coating over part of its surface to permit air to be sucked back into the container. <IMAGE>
Patent GB-2021600-A (GB)
Title: Thermoplastic polymer compositions
IPC: C08L75/06
Filed: 1979-04-25
Abstract: Thermoplastic polymer compositions of good low temperature impact strength comprise:   (A) a copolymer of acrylonitrile and/or methacrylonitrile with butadiene and styrene containing 10-25% by weight of acrylonitrile and/or methacrylonitrile units, 40-65% by weight butadiene units and 25-38% by weight of styrene units; (B) a thermoplastic polyurethane having a urethane content of 45-80% which is the reaction product of a diisocyanate, a diol of molecular weight below 400, and a hydroxyl-ended polyester of molecular weight 800-4000, using a NCO:OH ratio of 0.96:1 to 1.1:1; the ratio of (A) to (B) lying within the range of 1:99 to 1:1.
Patent GB-2020777-A (GB)
Title: Program switching devices with stepping switching drives
IPC: H01H43/10
Filed: 1979-05-09
Abstract: A program switching device has a stepping switching drive for driving a control disc for actuating a shaft 1 carrying control members. Carried on the shaft 1 is a ratchet wheel 2 which has two tooth configurations 3 and 4 and into which at least one switching pawl 5 resiliently engages. A rotating eccentric disc 10 imparts a stroke movement to the switching pawl 5. One tooth configuration 3 having a pitch t is partly covered by a cover member 17. The stroke movement of the switching pawl 5, which amounts to a multiple of the pitch t, causes only one step motion t on each stroke movement, on the tooth configuration 3. Teeth project radially beyond the cover member 17, at selected positions on the tooth configuration 4. It is also possible to provide two switching pawls which are each associated with a respective one of the tooth configurations 3 and 4. The ratchet wheel 2 is a push connection on the shaft 1 and easily interchangeable, for the purposes of changing the program. <IMAGE>
Patent GB-2028309-A (GB)
Title: Dioxoles
IPC: C07D317/26
Filed: 1979-06-20
Abstract: Compounds having cytostatic, hypotensive and analgesic activity of the formula   <IMAGE>  in which:     R<1> represents   <IMAGE> in which X represents a hydrogen atom or an alkyl, cycloalkyl, aryl, hydroxyaryl or arylalkyl group, R<2> represents a hydrogen atom, an alkyl or aryl group or R<1>, R<3> and R<4> independently represent a hydrogen atom or an alkyl or aryl group or R<3> and R<4> together represent   <IMAGE> in which R<5>, R<6>, R<7> and R<8> independently represent a hydrogen atom or an alkyl or aryl group, or R<5> and R<6> together may form =O in which case R<8> may represent   <IMAGE> in which R<9> and R<10> independently represent a hydrogen atom or an alkyl or aryl group maybe prepared by reaction in aqueous media of:     (a) an aldehyde or ketone of the formula:   <IMAGE> and   (b) an enediol of the formula:   <IMAGE>
Patent GB-2024944-A (GB)
Title: Compressor control system
IPC: B64D41/00
Filed: 1979-07-02
Abstract: A control system for a compressor having adjustable inlet guide vanes includes an adjustable, mass airflow gauge means (not shown, but integrated with a bypass valve 21) for monitoring the output of the compressor 16, actuator means 36 for adjusting the setting of the gauge means and the bypass valve 21 and the setting of the compressor inlet guide vanes 18 in use, sensor means 51 producing signals representative of the setting of the inlet guide vanes 18 and a control unit 47 which processes the signals from said sensor means 51 and output signals from said gauge means, and produces an output signal controlling operation of said actuator means 36, to adjust said gauge means and said inlet guide vanes 18 in accordance with the mass airflow output of the compressor 16. <IMAGE>
Patent GB-2024275-A (GB)
Title: A needle for repairing fishing nets
IPC: D05B85/00
Filed: 1979-07-13
Abstract: A needle for repairing fishing nets having a cutting blade 7 which preferably can retract within the body of the needle so that the blade can be exposed at will when it is necessary to cut the twine used in the nets or to gut fish. <IMAGE>
Patent GB-2034312-A (GB)
Title: A process for the preparation of cephalosporins
IPC: C07F9/6561
Filed: 1979-09-20
Abstract: A process for the preparation of cephalosporins having a phosphono- carbamoyloxymethyl group at the 3- position by reacting a cephalosporin having at the 3-position a group   <IMAGE> (wherein R<4> and R<5> are independently alkyl, aralkyl, alicyclic or aryl groups or together form a divalent group) with a compound of formula   <IMAGE> (wherein R<6>, R<7> and R<8> are independently alkyl, aralkyl, alicyclic or aryl groups or any two of R<6>, R<7> and R<8> together form a divalent group, and X is halogen) followed by hydrolysis. The 3-phosphonocarbamoyloxymethyl cephalosporin products of the process exhibit antibiotic activity and if desired may be readily converted to 3- carbamoyloxymethyl cephalosporins which themselves show antibiotic activity.
Patent GB-2034072-A (GB)
Title: Spectacle frames
IPC: G02C5/14
Filed: 1979-10-19
Abstract: The lenses of spectacles are held by rims 1, which are split at the side opposite the nose-bridge and formed with lugs 7, 8 formed with holes 12 (only one shown). The temple has arms 5, 6 sprung apart, but brought together by a grooved sliding piece 9, so that pins 10, 11 enter the holes 12, to bring lugs 7, 8 together and to form a hinge. <IMAGE>
Patent GB-2062048-A (GB)
Title: Concrete fencing post
IPC: E04H12/12
Filed: 1979-10-26
Abstract: The post is moulded from plastic concrete by filling a sleeve 1 of water- impermeable material, e.g. bituminous paper or plastics. The sleeve is sufficiently stiff to avoid enlargement of its cross sectional dimensions under lateral forces imposed thereon by the concrete filling before the latter sets, and the sleeve remains as part of the post, as a protective cover. The end of the sleeve may be fitted with a hollow cone 5. Reinforcing rods, e.g. 21, may be positioned against the interior surface of the sleeve. A steel band 25 may be fitted within the sleeve, at the top of the post. This increases impact resistance when the post is hammered into the ground. <IMAGE>
Patent GB-2065241-A (GB)
Title: Rolling contact bearings
IPC: F16C33/38
Filed: 1979-11-24
Abstract: A rolling element bearing includes means 22 attached to the radially inner race whereby the rotational speed of the bearing cage is adapted to be controlled by the inner race. <IMAGE>
Patent GB-2037541-A (GB)
Title: A Microwave Link
IPC: H04B3/52
Filed: 1979-11-29
Abstract: This invention relates to microwave communication links for use in situations where there are potential differences between one end of the link and the other. The link (1) includes a body portion (2) formed as one or more solid core porcelain post insulators with hollow cylindrical caps (8) provided adjacent each end of the body portion and each housing a quarter wave dielectric transformer (15) and a wave guide feed system (13, 14) dimensioned to suit the operating frequency and to minimise system transmission loss, the microwave signal being transmitted through the integral core of the body portion from the transmitting cap 6 to the receiving cap 7. <IMAGE>
Patent GB-2052856-A (GB)
Title: Coating protecting varistor during manufacture
IPC: H01C7/102
Filed: 1980-04-18
Abstract: A low leakage metal oxide varistor which is resistant to the high temperature, corrosive conditions encountered during assembly of such devices includes a protective silicone polyimide layer 18 disposed on the surface of the varistor body 12 between first and second spaced-apart electrodes 14, 16. This layer is provided before a soldering step in which leads 20, 22 are attached to the electrodes. Both varistors with electrodes on opposing major surfaces and varistors with laterally spaced electrodes on a single surface are described. <IMAGE>
Patent GB-2048777-A (GB)
Title: Belt and methods of manufacture and splicing
IPC: B65G15/32
Filed: 1980-04-30
Abstract: In a belt there is provided an end region facilitating splicing or repair of the belt. The region includes a reinforcing core extending in the lengthwise direction of the belt and a separator layer. The separator layer is relatively non-adherent to the reinforcing core and facilitates removal of at least one of the outer cover layers for splicing or repair of the belt. The region is provided during manufacture of the belt.
Patent GB-2055573-A (GB)
Title: Hair drying apparatus
IPC: H01T23/00
Filed: 1980-07-09
Abstract: An apparatus for drying hair by blowing air, combined with an electronic device (9, 10, 12, 14) which generates an ionic flow from an ionising electrode (7) disposed at the end of the air blowing duct (5); the ionic flow is thus conveyed onto the hair by the air jet from the apparatus, and neutralises the electrostatic charges formed in the hair. <IMAGE>