baber/WOPTO huggingface dataset:
Patent GB-1486645-A (GB)
Title: Drum brakes
IPC: F16D51/10
Filed: 1974-09-04
Abstract: 1486645 Internal shoe drum brakes GIRLING Ltd 18 Aug 1975 [4 Sept 1974] 38651/74 Heading F2E An internal shoe drum brake comprises a pair of opposed brake shoes S and a separate spring 1 extending alongside and generally parallel to each shoe, each spring 1 having one end 1a anchored at 1<SP>1</SP> to its associated shoe and the opposite end 1b connected by a force-transmitting means 2, 3, to the other shoe to pull the two shoes towards each other. As shown, the end 1a of each spring 1 is provided with a hook which passes through an aperture in a shoe web, and the force transmitting means includes a bell crank 2 and a rigid link 3. The force-transmitting means may alternatively include a cable having one end attached to end 1b and the other end attached to the other brake shoe, the cable passing around a pulley mounted on the associated shoe.
Patent GB-1340380-A (GB)
Title: Thermostatic flow controller
IPC: F16K31/68
Filed: 1971-08-18
Abstract: 1340380 Valves GENERAL ELECTRIC CO 18 Aug 1971 [10 Sept 1970] 38672/71 Heading F2V A thermostatic valve has a flexible sleeve 16 with a portion 16a of reduced thickness controlling flow from grooves 40 in rod 14 to ports 42 in response to expansion and contraction of wax 36 sensing the temperature of fluid flowing through conduit 38. The sleeve is clamped within housing 12 by wedge collar 22 abutting nut 24 and by wedge surface 14c on rod 14, the latter being located axially by nut 25. In a modification, instead of sensing fluid temperature in conduit 38, fluid is supplied to the valve via a conduit coiled around housing 12 so that the valve responds to the temperature of the controlled fluid. In a further modification, the sleeve is replaced by a diaphragm. The wax may be a mixture of polyethylene glycol waxes of different melting points. Filler tube 32 may be connected to a source of pressurized fluid to provide supplementary control.
Patent GB-1325459-A (GB)
Title: Circuit for up-conversion of an intermediate-frequency frequency or phase modulated signal
IPC: H03D9/06
Filed: 1970-08-12
Abstract: 1325459 Gunn effect frequency changer; radio signalling LICENTIA PATENT-VERWALTUNGS-GmbH 12 Aug 1970 [12 Aug 1969] 38883/70 Headings H3T and H4L A circuit for the up-conversion of an intermediate frequency, frequency or phase modulated signal has a single Gunn effect semiconductor element 1 to provide the functions of an input amplifier, mixer oscillator, mixer and microwave output amplifier. The Gunn element 1 is synchronized with the injected I.F. signal ZF which forms a subharmonic of the oscillations. The non-linear characteristics of the Gunn effect element bring about the up-conversion of the amplified intermediate frequency signal. The incoming frequency modulated or phase modulated I.F. ZF is supplied to the Gunn element 1 via a L.P.F. (TP, Fig. 2, not shown), and the output to be transmitted is taken from a H.P.F. (HP). The Gunn element 1 is mounted in a waveguide 6 and is supplied with bias via the inner conductor 3 of a coaxial input line 2. A portion of the inner conductor 3 is enlarged to provide a matching element and screws 7 also provide adjustment of matching. A cavity filter 4 blocks the microwaves and a shorting plunger 5 tunes the output HF. The circuit may be used in a radio link relay station.
Patent GB-924121-A (GB)
Title: A monocrystalline semi-conductor device
IPC: H01L21/28
Filed: 1960-11-14
Abstract: 924,121. Semi-conductor devices. SIEMENS-SCHUCKERTWERKE A.G. Nov. 14, 1960 (Nov. 13, 1959), No. 39111/60. Class 37. A known semi-conductor device shown in Fig. 1 has a strongly doped P region 3, a weakly doped P region 4 and a strongly doped N region 5 the effect of the weakly doped P region being to increase the width of the space charge region and thereby the punch-through voltage. The effect of surface negative charges 11 of such a device is to move the boundary 4a of the space charge region in the weakly doped P region nearer the boundary 5a in the N region thus reducing the breakdown voltage. In the device according to the invention shown in Fig. 2 a weakly doped N region 15 surrounds the highly doped N region 5 at the surface of the device. The effect of negative surface charges is shown on the left of the diagram. Space charge boundary 4a in the lightly doped P region moves towards the lightly doped N region as shown at 16 but the boundary in the lightly doped N region moves towards the N region 5 as shown at 17 thus the distance between them tends to remain constant. The effect of positive surface charges is to move both boundaries outwards as shown at 18 and 19. The highly doped N region may extend below the heavily doped N region but this produces a poorer operating characteristic. The particular device described is of silicon on an aluminium base plate. The highly doped P layer 3 has about 1018 aluminium impurity centres/cc.; the layer 4 has about 10<SP>13</SP> of boron; the highly doped N zone 5 has 10<SP>19</SP> impurity centre/cc. The weak N layer may be provided by doping from a surface with a gold antimony foil (antimony 1: 10<SP>6</SP>) and the strong N layer by further doping with a gold antimony foil (antimony 1 : 10<SP>2</SP>).
Patent GB-815059-A (GB)
Title: Time delayed firing mechanism for aircraft ejection seats
IPC: B64D25/10
Filed: 1956-06-07
Abstract: 815,059. Aircraft ejection seat mechanism. MARTIN, J., and MARTIN-BAKER AIRCRAFT CO. Ltd. May 1, 1957 [June 7, 1956], No. 39200/58. Divided out of 815,058. Drawings to Specification. Class 4. The subject matter of this Specification is the same as that of Specification 815,058 but the claims are directed to the firing mechanism and time delay mechanism. Specifications 583,257, 652,131, 763,580 and 763,581 are referred to.
Patent GB-1193147-A (GB)
Title: Electro-Coated Plastic Materials
IPC: C23C18/20
Filed: 1967-08-29
Abstract: 1,193,147. Propylene polymer compositions. FARBWERKE HOECHST A.G. 29 Aug., 1967 [27 Aug., 1966], No. 39446/67. Heading C3P. [Also in Divisions C6 and C7] Compositions suitable for making articles which may be electroplated comprise polypropylene or a copolymer of at least 90 weight per cent of propylene units and up to 10 weight per cent of units of ethylene or another C 4-6  α-olefin, and 10 to 50 weight per cent of zinc oxide or zinc sulphide. Stabilizers may be present. In examples polypropylene and ethylene/propylene copolymers are mixed with zinc oxide and/or sulphide and moulded, and the articles treated with a solution of sulphuric, phosphoric and chromic acids, activated with a solution of stannous chloride and hydrochloric acid, electroless plated from ammoniacal silver nitrate solution and a solution of potassium sodium tartrate, sodium hydroxide, copper sulphate, sodium carbonate and formaldehyde, and finally electroplated with copper.
Patent GB-1164114-A (GB)
Title: Improvements in or relating to Methods of and Means for Effecting Step by Step Movement of a Tape-like Member
Inventor: SMITH JOHN STANLEY
IPC: G11B15/20
Filed: 1965-09-16
Abstract: 1,164,114. Feeding record tapes. J. S. SMITH. 13 Sept., 1966 [16 Sept., 1965], No. 39497/65. Heading G5R. [Also in Division H2] Step-by-step movement of a tape (e.g. in a digital magnetic tape recorder) is controlled by deriving a signal proportional to the velocity of the tape, integrating the signal and inhibiting the drive when the amplitude of the integrated signal reaches a chosen level, then causing the drive to retard the tape until the velocityproportional signal is zero. As shown, a tachogenerator 19 is coupled to a reversible D.C. servo-motor 18 driving a magnetic tape 10. The signal from the tachogenerator 19 is amplified at 20, integrated at 21 and fed to an amplitude detector 24 connected to a bi-stable trigger 25. A command to input 26 operates switch 27 to connect a positive supply B + to accelerate the motor until detector 24 switches trigger 25 to switch on a second bi-stable trigger 28 to connect a negative supply B- via switch 29 to decelerate the motor. When the tape is stopped, a zero detector 23 switches off trigger 28 and resets the integrator 21 to datum on line 22. Preferably recording is made when the tape is stationary and the detector 24 set to reverse the motor when the tape has advanced one half of the character spacing. When more than one digit character is to be written during one tape movement, additional detectors 32, 33 are set to operate at appropriate positions (n, o, Fig. 2 (not shown)) during the movement. Deceleration control may be improved by differentiating the amplified tachogenerator signal at (39, Fig. 3 (not shown)) and comparing it with a reference (Rv) to operate the B- switch (29). An intermediate period of constant velocity or slow deceleration may be provided by a detector (40, Fig. 4 (not shown)), switch (41) and square law potentiometer (42).
Patent GB-1041809-A (GB)
Title: Wagons' elevation and helicoidal descent merry-go-round
IPC: A63G1/46
Filed: 1964-09-29
Abstract: 1,041,809. Merry-go-rounds. P. PERANI. Sept. 29, 1964 [Oct. 2, 1963], No. 39559/64. Heading A6M. A merry-go-round comprises a vertical shaft 4 with a spiral groove 5 engaging projections from a sleeve 32 supporting passenger cars 10, which sleeve 32 is turned around said shaft by the passengers to lift the cars, and means in the form of a keyway 6 to guide said sleeve in a rectilineal path. The said sleeve projections comprise steel balls 40 which roll both in an internal groove 38 of the sleeve 32 and in the spiral groove 5 as the sleeve is rotated around the shaft 4 through worm gearing 31, 32 by passengers rotating cranks 13 while seated in the cars. The carriage 12 is thus raised and at the same time is prevented from rotation about the shaft by means of a member 44 which engages a keyway 6 in the shaft 4. When the carriage reaches the top of the shaft the member 44 is withdrawn by a passenger so that the carriage with the cars theron is free to roll down the spiral course of the groove 5. When the carriage reaches the stepped down portion 49 of the shaft the cars spin freely around on wheels 11 and ball bearing 46.
Patent GB-915795-A (GB)
Title: Improvements in or relating to devices for transforming rotary motion into reciprocating motion
IPC: F16H25/14
Filed: 1961-11-06
Abstract: 915,795. Cam mechanisms. PHILIPS ELECTRICAL INDUSTRIES Ltd. Nov. 6, 1961 [Nov. 9, 1960], No. 39630/61. Class 80 (3). A device for transforming rotary into reciprocating motion comprises a heart-shaped cam 19 driven at constant angular velocity and enclosed between two circular discs 18 rotating about shafts 5 rigidly connected by a coupling- member 3, 4, the coupling member being connected to the reciprocated member 1 through a friction clutch. The discs 18 are held in preloaded contact with the cam 19 by the resilience of the U-shaped coupling 3, 4, the shafts 5 of which are rigid with projections 9 having edges 10 fitting with clearance in apertures 11 in the reciprocated slide 1. The projections 9 are held in frictional driving contact with the slide 1 by springs 14 on bolts 13. The edges 10 are held substantially centrally of the apertures 11 by plates 15 pivoted to the slide 1 and engaging the shafts 5, the plates being connected by a resilient rod resisting rotation of the plates due to movement of the shafts 5 relative to the slide 1.
Patent GB-1109190-A (GB)
Title: Substituted ª-phenyl-alkanols and -alkenols and their ethers
Inventor: SHEN TSUNG-YING
IPC: C07C57/46
Filed: 1965-06-08
Abstract: Novel alcohols of the general formulae <FORM:1109190/C2/1> and <FORM:1109190/C2/2> (wherein R00 represents a methylene or ethylidene radical, R** a C1- 5 alkyl radical, Rp a cyclohexyl, cyclopentyl or C1- 5 alkyl radical and Rm a halogen atom or a C1- 5 alkoxy or alkylthio trihalomethyl, SH, NH2, di-(C1- 5 alkyl)-amino, CN, ND2, CONH2, C1- 6 alkanoylamino, C1- 4 alkylsulphonyl, di-(C1- 5 alkyl)-sulphamoyl or OH radical, and x is 1 or 2, with the provisos that at least one Rm substituent is in one of the m-positions relative to the side chain, and that there is at most one trihalomethyl substituent which must be in such m-position) are prepared by reducing the corresponding carboxylic acids (containing -COOH in place of -CH2OH), preferably by means of an alkali or alkaline-earth metal aluminium hydride.  The alcohols may be converted to their alkyl or ethoxyethyl ethers by the action of alkylating or ethoxyethylating agents.  Pharmaceutical compositions, having anti-inflammatory activity, contain the novel alcohols and ethers as active ingredients.
Patent GB-1391973-A (GB)
Title: Polyvinyl acetal membrane
IPC: B32B27/30
Filed: 1972-08-29
Abstract: 1391973 Semipermeable polyvinyl acetal membranes AQUA-CHEM Inc 29 Aug 1972 [7 Sept 1971] 40002/72 Heading B5B [Also in Divisions B1 and C7] A semipermeable membrane is made by dissolving a polyvinyl acetal, preferably formal, in a solvent, casting a film and leaching out the solvent with another liquid which mixes with the solvent but does not dissolve the polyvinyl formal. The solvent is either dimethyl sulphoxide, N,N-dimethyl formamide or N,N-dimethyl acetamide; the preferred non-solvent is water. The casting solution may contain from 10-20% by weight of the polymer.  The membrane may be partially hydrolysed with sodium hydroxide. The pore-size of the membrane may be reduced by heating it at from 40 to 100 C.
Patent GB-1136065-A (GB)
Title: Nuclear reactor
IPC: G21C5/10
Filed: 1967-09-01
Abstract: 1,136,065. Reactors. UNITED STATES ATOMIC ENERGY COMMISSION. 1 Sept., 1967 [16 Sept., 1966], No. 40193/67. Heading G6C. In an integral nuclear reactor, the helium gas cooled core and the steam generating heat exchangers are mounted together in a prestressed concrete pressure vessel. The core support system and the interior system of the pressure vessel are cooled by the flow of gas prior to its entry into the core. The gas flows downwards through the core, the graphite blocks of which are thrust downwards into engagement with the core support plate. The exchangers may be removed through an access duct, in the vessel lower end wall, which is normally closed. The vessel is a vertical cylinder enclosing a cylindrical chamber, the lower region of which is occupied by the exchangers comprising evaporatoreconomizer, superheater and reheater, and coolant pumps, and the upper region of which encloses the core. The latter rests upon a horizontal bed which is supported, above the heat exchangers, upon vertical columns. The latter are hollow and are cooled internally by about 15% of the main coolant flow. The core is cylindrical and is formed of columns of graphite blocks in which fuel rods are embedded. Vertical passages are formed in the graphite to accommodate the gas flow and the control rods. Fixed orifices control the gas flow through the core. Reflector blocks surround the core and lateral restraint is provided by an enclosing steel cylinder. The core structure is carried on the horizontal bed by vertical graphite posts which have spherical ends to permit differential thermal dimension changes within the structure.
Patent GB-1446973-A (GB)
Title: Method of removing nitrogen monoxide from a nitrogen mono xide-containing gas
IPC: B01J31/18
Filed: 1974-09-16
Abstract: 1446973 NO removal ASAHI KASEI KOGYO KK 16 Sept 1974 [24 Sept 1973 23 Oct 1973] 40195/74 Heading C1A Nitrogen monoxide is removed from a gas by contacting the gas stream with an aqueous solution containing a ferrous ion complex formed from a ferrous ion and an organic compound of 2 to 24 carbon atoms having in the molecule at least one mercapto, amino, imino and nitrilo groups, preferably a mercaptocarboxylic acid having 2 to 6 carbon atoms, an amine having 2 to 6 carbon atoms, an aminopolycarboxylic acid having 4 to 24 carbon atoms or a mixture of these. A sulphite or sulphide may optionally be present.
Patent GB-1028934-A (GB)
Title: Improvements in or relating to ventilation machines
Inventor: MANLEY ROGER EDWARD WENTWORTH
IPC: A61M16/00
Filed: 1961-11-09
Abstract: 1,028,934. Artificial respiration appliances. BLEASE ANAESTHETIC EQUIPMENT Ltd. Nov. 8, 1962 [Nov. 9, 1961], No. 40239/61. Heading A5T An open circuit artificial respiration machine, operated by the pressure of the input gas, includes a reservoir 86 of preset capacity, which is filled during the inspiratory part of the breathing cycle and exhausted during the expiratory part of the breathing cycle without its contents passing to the patient, and a control valve 34 and a small bellows 14 in the gas input, the control valve being opened in response to the volume of the small bellows. The small bellows is continuously supplied with gas and a large bellows 32 in communication with the patient recives gas through the control valve. During exhalation through the valve 60, gas from a cylinder 4 passes through the small bellows 14 to the control valve 34 via a tube 18, which is in communication with the control chambers of the exhalation and inhalation valves and in which the pressure is sufficiently low for the inhalation valve to be held closed by a compression spring 66 and the exhalation valve to be held open by a tension spring 78. As the large bellows is inflated, link mechanism 40, 42, 43, 48 is operated by a lever 36 on the bellows to close the control valve 34. The pressure in the small bellows, the tube 18 and the control chambers of the exhalation and inhalation valves then rises, so that the inhalation valve opens for passage of gas from the large bellows as it is deflated by the action of springs 44, the exhalation valve closes and the small bellows commences to inflate. The inhalation phase continues until a lever 26 on the small bellows moves a preset contact 30 upwardly, so that the control valve 34 is opened through the link mechanism to initiate the exhalation phase. During the inhalation phase, gas passes from the downstream side of the inhalation valve to the reservoir 86. The reservoir is exhausted through the exhalation valve 60. A four position valve 100, gauged with an on-off tap 12, may be turned (1) for automatic operation (Fig. 1), (2) connecting the small bellows directly to the downstream side of the inhalation valve for continuous supply of oxygen to the patient, the exhalation valve remaining open, (3) connecting the large bellows to the inhalation valve control chamber so that air may be supplied to the patient by manually pumping the large bellows by the knob 101, the gas supply being disconnected by the tap 12.
Patent GB-1089303-A (GB)
Title: Improved centrifugal scatterer for fertilisers
IPC: A01C15/00
Filed: 1965-09-22
Abstract: 1,089,303. Centrifugal distributers. AMAZONEN-WERKE H. DREYER. Sept. 22, 1965 [May 6 ,  1965], No. 40308/65. Addition to 1,089,302. Heading A1D. A centrifugal distributer is provided with a detachable delivery member 16 and agitator 26 together with a raking element 31 in the form of a spring cotter pin which also serves to limit axial displacement of the delivery member 16 and the agitator 26.
Patent GB-876987-A (GB)
Title: Laminated materials
IPC: C08F110/02
Filed: 1957-12-30
Abstract: 876,987. Laminates. MONTECATIM SOC. GENERALE PER L'INDUSTRA MINERARIA E CHIMICA. Dec. 30, 1957 [Jan. 3, 1957], No. 40347/57. Addition to 810,023. Class 140. A sheet, plate, strip or foil of metal, preferably iron, steel, or aluminium, is coated or laminated on one or both sides with a material comprising at least one linear head-to-tail high polymer of an alpha-olefin, preferably propylene or alpha-butene, containing at least 50% of crystalline polymer. The polymer may be applied as a thin coating in solution by casting dipping or spraying, with subsequent evaporation of the solvent, or as a thicker lamina secured by adhesive and subsequent pressing in a stationary or rotary press. The metal surface may first be roughened, as by sandblasting, and depressed. The polymer may contain fillers, pigments, dyes or stabilizers. A suitable adhesive composition comprises 40 parts of butadiene-acrylonitrile rubber, 60 parts of phenolic resin and 6 parts of colophony esterified with polyhydric alcohols, in 30% solution in methyl-ethyl ketone. Examples describe the application of this adhesive, followed by drying, (a) to aluminium sheet which is then laminated with heat and pressure to an extruded sheet comprising 75 parts of polybutene of molecular weight 100,000 and crystalline polymer content 72.95%, 20 parts of talc as filler, and 5 parts of dye or pigment, (b) to iron sheet, and also to a sheet of polymer, followed by cold pressure lamination. In further examples (a) continuous steel strip is spray-coated with the adhesive, followed by drying, and is then laminated to an extruded tape of polypropylene of molecular weight 160,000 and crystalline polymer content 79% in a roll press, (b) aluminium foil is similarly laminated to extruded polypropylene of molecular weight 130,000 and crystalline content 80%. The products are stated to be decorative, resistant to chemical and electrochemical corrosion and to attack by microorganisms, and strongly bonded and flexible, permitting mechanical shaping without surface cracking. Specification 835,330 also is referred to.
Patent GB-1439493-A (GB)
Title: Method for applying a road-marking material
IPC: E01C23/16
Filed: 1973-08-28
Abstract: 1439493 Road marking SAKAI CHEMICAL INDUSTRIAL CO Ltd 28 Aug 1973 [28 Aug 1972] 40458/73 Heading E1G A road marking vehicle includes rotary brush 22 which brushes large particles off the road but fills concavities with the small particles, a spray for binding material 18 and means for applying marking material 19 to the binding material. A spray 20 for glass beads is also provided. The brush is mounted on an axis brushes to the direction of marking and driven by a ground engaging wheel or by a motor through reduction gearing. The brush and the spraying means may be raised by hydraulic means 26 or 21.
Patent GB-888710-A (GB)
Title: Improvements in compressors or turbines having bearings with carbon seals
IPC: F16J15/38
Filed: 1960-11-25
Abstract: 888,710. Stuffing-box substitutes. GENERAL MOTORS CORPORATION. Nov. 25, 1960 [Nov. 7, 1959], No. 40518/60. Class 122 (5). One side of the bearing 6 of the shaft 4, Figs. 1 and 3, of a compressor or turbine has a non-rotary sleeve 48 with a carbon seal ring 44, and fixed to the shaft, a rotary seal follower 34 having a radial flange 36 which has a seal surface 40 in contact with the ring 44 and is provided with approximately radial borings 88 communicating at their radially outer ends with openings 90 in the seal surface 42 and having their inner ends open so that, when the shaft rotates, air is pressurized by centrifugal action in the borings. The shaft 4 is an extension of the hub of the first stage wheel 20 of the rotor 8 of an axial flow-type compressor and is splined to a driving shaft 32 which may be the turbine shaft of a gas-turbine engine. The ring 44 is provided with an annular groove 92 opposite the openings 90 in the flange 36 and is carried by the sleeve 48 which is slidably and sealingly mounted within a two-piece annular cage 52 bolted to the housing 2 of the compressor, the sleeve 48 being urged in contact with the ring 44 by springs 70 located in recesses in the cage 52. The follower 34, Fig. 4, has its flange 80 abutting the bearing 6 provided with radial slots 82 which connect with an annulus 84 communicating with an annulus 86 in which the borings 88 open, as shown in Fig. 3. Under running conditions oil or oil-laden air in the cage 52 in the vicinity of the slots 82 is acted upon by the rotating slots and the oil is separated from the air by centrifugal action, clean air being sucked in the borings 88 and compressed therein by centrifugal action so that it flows under pressure radially outwardly and inwardly between the seal ring 44 and the flange 36 thereby preventing leakage of oil past the seal ring.