baber/WOPTO huggingface dataset:
Patent GB-742948-A (GB)
Title: Improvements in or relating to apparatus for measuring the magnitude and position ofa standing wave in a waveguide section
Inventor: WHITEHEAD ERIC ARTHUR NORTH
IPC: H01P5/16
Filed: 1953-04-29
Abstract: 742,948. Voltage, current, and frequency measurements. ELLIOTT BROS. (LONDON), Ltd. April 26, 1954 [April 29, 1953], No. 11889/53. Class 37. [Also in Group XL (b)] Apparatus for measuring the magnitude and position of a standing wave in a wave-guide section comprises a fourarmed directional coupler junction having a totally reflecting tuning plunger in one of the two arms coupled to the input arm and an unknown impedance coupled to the other of such arms, with a detector coupled by a matching transformer to the decoupled or nominally decoupled arm of the junction; such matching transformer being adjusted to produce no variation of the detector signal as the totally reflecting plunger is moved in or out of its arm with the unknown impedance replaced by a perfectly matching load. Fig. 1 shows a directional coupler of the magic T-type comprising a 4-armed wave-guide junction such that power fed into arm 3 divides itself between arms 4, 6, and arm 7'is normally decoupled from the input; a totally reflecting plunger 5 being inserted in arm 4 and the output arm 6 being connected to an unknown impedance load (not shown). The decoupled arm 7 is connected to the input arm 7a of a matching transformer 2 constituted by a similar magic T-junction whose opposed arms 9, 10 contain reflecting plungers 11, 12 and whose arm 8 is coupled to a crystal detector and indicator (not shown). In operation, output arm 6 is coupled to a matched impedance load and plungers 11, 12 are adjusted until the crystal current is invariable for movement of plunger 5. The matched load is then replaced by the unknown impedance load, and standing wave amplitudes and positions are determined by reciprocating plunger 5 to positions of maximum indicated crystal current. Attenuating vanes may be inserted in the detector arm 8 and input arm 3 to reduce the effect of source or detector impedance variations upon the adjustment of plungers 11, 12, and formulµ are given for the measurement errors to be expected. The input arm 3 and detector arm 8 may be coupled to the narrow faces and arms 7, 7a to the broad faces of arms 4, 6 and 9, 10 respectively (Fig. 2, not shown). The directional coupler and 'matching transformer magic T-junctions may be interconnected over arms 7, 7a of virtual but zero length with arms 4, 6 and 9, 10 mutually perpendicular and arms 3, 8 mutually collinear (Fig. 3, not shown).
Patent GB-495297-A (GB)
Title: Improvements in the manufacture and production of zinc hyposulphite
IPC: C01B17/66
Filed: 1938-04-20
Abstract: Concentrated solutions of zinc hyposulphite are obtained by acting on zinc amalgam in an aqueous medium with sulphur dioxide in the absence of alkali salts.  A zinc compound acting as a buffer substance may be present, for instance zinc oxide or hydroxide, or zinc bisulphite, sulphite, malonate or malate. Examples of operation are given.
Patent GB-1342214-A (GB)
Title: Liquid crystal compositions and devices
IPC: G02F1/137
Filed: 1972-03-15
Abstract: 1342214 Benzylidine - p - n - butyl aniline derivatives; methyl - p - formyl phenyl carbonate SPERRY RAND CORP 15 March 1972 [29 March 1971] 12094/72 Heading C2C [Also in Divisions C4 and H4] The invention comprises p-methoxy formyloxy benzylidine-p-n-butylaniline of formula which may be prepared by reacting methyl chloroformate with hydroxybenzaldehyde to give methyl-p-formyl-phenyl carbonate which is refluxed with p-n-butylaniline to give the desired compound. The above compound may be used alone or in admixture with a compound of formula in which R is an alkyl radical and, optionally p - toluylidine - p - n - butylaniline as electrooptically active liquid crystal materials. The p-toluylidine-p-n-butylaniline may be prepared by reacting p-toluylaldehyde with p-n-butylaniline.
Patent GB-987967-A (GB)
Title: Improvements in polishing rolls
IPC: B24B41/00
Filed: 1964-03-23
Abstract: 987,967. Polishing. W. RAUCH, and A. SCHNIZLER, [trading as METABOWERKE KOMM.-GES. CLOSS, RAUCH & SCHNIZLER]. March 23, 1964 [Sept. 5, 1963], No. 12104/64. Heading B3D. A polishing roll comprises a plurality of polishing discs 29 driven from one drive spindle 1 and arranged for pivotal movement individually and independently of one another, the pressure of application of the individual polishing discs against a workpiece to be polished being regulable. Each polishing disc is secured by a ring 30 to a mounting plate 24 having a conical projection secured by a bolt 28 to a conical recess in a pulley 17 mounted in bearings 16 in an outer portion 12 of an arm, the inner portion 4 of which is mounted on bearings 3 on the spindle 1, the two portions being relatively adjustable by a bolt and slot connection 13, 14 to vary the length of the arm. Pulleys 2 are disposed adjacent the portion 3 and are non-rotatably secured to the spindle and belts 19 transmit drive from the spindle to the discs. The portions 4 of the arms have sockets 3 for rods 36 carrying adjustable weights 38 by means of which the pressure of the discs acting on a workpiece is adjusted. The workpiece may be rotated about an axis perpendicular to the axes of the discs while passed through the machine.
Patent GB-181908-A (GB)
Title: Improvements in or relating to motor vehicles
IPC: B60J1/08
Filed: 1921-04-27
Abstract: 181,908. Heal, H. April 27, 1921. Hoods ; bodies. - Consists of a motor vehicle which may be used as an open touring car, as a car having windows totally surrounding the body, or as a totally enclosed two or four seater car. The body 1 has side windows 2 extending from the screen 3 to the back of the front seats, side windows 5 extending 'therefrom to the back of the body, a rear window 6, and also windows 7, 8 at the back of the front seats, receses being provided into which the windows may be lowered. The hood 9 is formed of flexible material wound on a roller 10 pivoted on links 11 connected to the body by short links 12, so that when the links are doubled one upon the other the roller 10 can be concealed in a recess 14. The hood may be used to extend over the whole body as shown in Fig. 3, or over the front seats only when the vehicle is used as a two-seater. The hood may be supported on arched transverse sticks, and the roller made barrel-shaped and of the same curvature.
Patent GB-937480-A (GB)
Title: Hydrodynamic drive device
IPC: F16H61/64
Filed: 1962-03-30
Abstract: 937,480. Variable-speed gear. GENERAL MOTORS CORPORATION. March 30, 1962 [May 29, 1961], No. 12283/62. Class 80 (2). [Also in Group XXIX] An hydrodynamic drive device 10, Fig. 1, comprising an impeller 40 and two turbines 42, 44 fast respectively with a sun gear 30 and with the carriers of planet pinions 24, 32 of associated gear trains 12, 14 is emptied and filled to establish various ratios simultaneously with selective engagement, &c. of a clutch and a brake 38, 46, the emptying being effected through two fluid-pressure controlled valves 48, 50, the valve 48 being spring-opened at all rotational speeds of the device when the control fluid pressure applied to it is shut off, but the 50 opening only if a predetermined rotational speed is exceeded. Emptying of the device 10 is thus effected slowly at low rotational speeds and quickly at high rotational speeds. The valve 48, Fig. 2, comprises a spool carried in the drive device housing 55 and having an enlarged head 60 so that centrifugal force acting thereon assists a spring 56 to move the valve to the open position when fluid pressure applied behind the head is shut-off, the spool then taking up the position shown to open a port 52 and connect the working space of the device to an exhaust space 61. The valve 50, Fig. 3, comprises a spool 66 biased to the closed position by a spring 62 and by the control fluid pressure applied to the space between the spool and a plate 64, shut-off of the control fluid pressure when a sufficiently high rotational speed has been achieved allowing centrifugal force acting on the spool to overcome the spring bias and move the spool to open a port 54 and thereby connect the working space of the device to an exhaust space 67. First ratio is established in the gearing by filling the device 10, Fig. 4, and engaging the brake 38 which acts through a one-way detent 36 to station a ring gear 28 meshing the planet pinions 32 and also to station a sun gear 22 meshing the planet pinions 24. A split-torque drive with relative rotation between the turbines 42, 44 is then detained to an output shaft 18. Second ratio is obtained by emptying the hydrodynamic device 10 and instead engaging the clutch 46 to drive a ring gear 20 meshing the planet pinions 24, while maintaining the brake 38 engaged, to obtain an all-mechanical drive. Third ratio is established by now filling the hydrodynamic device 10, the one-way detent 36 over-running, so that the gearing is virtually locked-up, bar some slipping in the hydrodynamic device.
Patent GB-1013356-A (GB)
Title: Bread
Inventor: CHITTY ASHLEY GEORGE
IPC: A21D2/26
Filed: 1964-03-24
Abstract: 1,013,356. Starch-reduced bread composition. ENERGEN FOOD CO. Ltd. March 24, 1964, No. 12373/64. Heading A2B. A flour for the preparation of starchreduced bread comprises a mixture of wheat flour, wheat gluten, milk solids, and soya, the ratio of gluten to the protein product of the remaining ingredients being in the range 3:1 to 1:1 by weight, the ratio of milk solids to soya being in the range 2:1 to 1:2 by weight, and the proportion of flour in the mixture being adjusted so as to obtain the desired carbohydrate content in bread baked from the mixture, this being preferably slightly less than 50% by weight. The milk solids may comprise a mixture of casein and skimmed milk powder. Preferably the ratio of soya to casein to skimmed milk powder is approximately 5:5:2 by weight. In examples, two such mixtures were employed to make bread, in one a strong bakers flour being employed, and in the other a wholemeal flour. The mixture was mixed with fat, salt, yeast, and water, and baked in conventional manner. Such bread may be toasted to give a toast which keeps indefinitely without staling.
Patent GB-1016434-A (GB)
Title: Emulsion paint base
Inventor: DAVIDGE HAROLD
IPC: C08F2/24
Filed: 1962-03-30
Abstract: Emulsion paint bases are made by polymerizing in aqueous dispersion four monomers, three of which are selected from acrylonitrile, esters of acrylic acid and homologues thereof and esters of itaconic acid, the amount of each of the three monomers being from 25 to 50% of the total weight of the three monomers used, and the total weight of the three monomers being at least 70% of the total weight of the four monomers, and the fourth component consisting of at least one monomer containing at least one ethylenic double bond, other than the monomers forming the group from which the three monomers are selected, the polymerization being carried out in the presence of an initiator and an emulsifier mixture consisting of approximately equal weights of an alkaryl sulphonic acid salt and a sodium dialkylsulphosuccinate, and a non-ionic emulsifier. Monomers specified are methyl methacrylate, ethyl and n-butyl acrylates, styrene, butadiene, isoprene, vinyl halides, vinyl acetate, and maleic and fumaric acids and their esters. Initiators specified are hydrogen peroxide, hydroperoxides, persulphates and mixtures thereof with reducing agents, e.g. formaldehyde sulphoxylate. Non-ionic emulsifiers specified are polyoxyethylene and polyoxypropylene ethers and esters.  Polymerization is preferably carried out at pH 4.5-6.0 with gradual addition of monomer and initiator as the reaction proceeds.  The four monomers may be copolymerized simultaneously, or one of the monomers, e.g. methyl methacrylate, may be polymerized initially and the other three monomers then polymerized in the presence of the preformed polymer dispersion.
Patent GB-1106615-A (GB)
Title: Microwave device
IPC: H03H9/40
Filed: 1965-03-24
Abstract: 1,106,615. Producing time delay. SPERRY RAND CORPORATION. 24 March, 1965 [24 March, 1964], No. 12401/65. Heading H1W. A dispersive delay device comprises a polarized disc 6 of microwave ferromagnetic material, e.g. yttrium iron garnet, and means for exciting in the disc magnetoelastic waves having a length comparable with the thickness of the disc. The disc is polarized by an axial magnetic field and is situated in a cavity resonator 5 to which pulses to be delayed are coupled by a circulator 4. It is stated that large variations in time delay for small changes in magnetic field may be obtained if the value of #B i H. just exceeds #/γ, where B i  is the internal flux density, H i  the internal magnetic field, # angular frequency and y the gyromagnetic ratio of the material. The delay decreases with increase in magnetic field. Further, the effect is strongly frequency dispersive, the sign of the dispersion being a function, of the direction of the magnetic field which may make angles of up to Œ30 degrees relative to the axis of the disc. It is stated that a field in the plane of the disc may be used. Increases in the delay time up to 10 Ásecs. may be obtained by operating at temperatures below 4‹ K.
Patent GB-931843-A (GB)
IPC: G01K5/44
Filed: 1961-03-30
Abstract: 931,843. Valves. MECANO-BUNDY G.m.b.H. March 30, 1962 [April 22, 1961], No. 12447/62. Class 135. [Also in Group XIII] A thermostat element comprises a rigid hollow body b, containing an expandible substance a, and having a neck portion d having an elastic insert e and a piston f which projects from the neck portion d, the inner surface of the portion d and surface of the piston f being coated at g, h with an abrasion-resistant, water-repellent synthetic resin having a low coefficient of friction such as polytetrafluoroethylene. The piston f may contact an abutment l carried by a valve seat k co-operating with a valve plate i rigid with body b.
Patent GB-713891-A (GB)
Title: Improvements relating to windshield cleaner
IPC: B60S1/24
Filed: 1952-05-16
Abstract: 713,891. Oscillating vane motors. OISHEI, J. R. May 16, 1952 [May 19, 1951], No. 12484/52. Class 110(2) [Also in Groups XXIII and XXXII] Relates to an oscillating vane motor in a windscreen wiper system (see Group XXIII). The motor 7, Fig. 1, has a vane-like piston comprising spaced sections loosely sti addling the motor shaft 9, Fig. 14 and a shaft'carried pin 26, for self adjustment within the motor chamber. Each piston section is composed of a rubber sheet 27 clamped between inner and outer body plates 28 and 29 to thus support flanges 30 of the sheets. The flanges make light uniform contact with the wall of the motor chamber.
Patent GB-791725-A (GB)
Title: Preparation of catalyst containing ions of cobalt and molybdenum
IPC: B01J23/882
Filed: 1956-04-24
Abstract: A cobalt-molybdenum catalyst, especially suitable for the hydrodesulphurization of petroleum distillates, is prepared by impregnating gamma alumina with an aqueous solution containing a molybdenum compound, a cobalt compound, and 1, 2-diamino-ethane, drying the impregnated particles, and heating at a temperature between 400 DEG  and 1050 DEG  F.  The gamma alumina is formed by heating aluminaceous particles at a temperature of 600-1700 DEG  F. The cobalt to molybdenum ionic ratio is 0.3-1.1 to 1 and the concentration of the 1,2-diamino-ethane in the solution is more than 2 molar.  In examples, the molybdenum and cobalt compounds used are ammonium molybdate, cobalt nitrate, molybdenum oxide, and cobaltous hydroxide.  The catalyst may also be used for hydrogenative reforming, hydrogenation of olefins, and vapour phase oxidation of organic materials.
Patent GB-797983-A (GB)
Title: Apparatus for cleaning compressed air tools
IPC: C23G3/00
Filed: 1957-04-17
Abstract: 797,983. Cleaning compressed air tools. GESER, A. April 17, 1957, No. 12570/57. Class 82(2) Compressed air tools are cleaned by entraining a cleaning liquid into a supply of compressed air to the tool. A supply container 1 is put under air pressure via a pipe 2 and the liquid from the container is injected into a mixer 4, from a nozzle 6. The vibration of the tool is absorbed by the spring-loaded sleeve 10. Provision (not shown) is made for returning cleaning liquid accumulated in the cover 16 to the container 1, a filter being used to clean the liquid. A pressure relief valve 13 is provided on the container.
Patent GB-494770-A (GB)
Title: Improvements in the manufacture of moulded artificial fuels
IPC: C10L5/10
Filed: 1937-05-04
Abstract: 494,770. Materials for making coke. PIOU DE ST.-GILLES, G. O. F., and SAGET, J. G. Y. May 4, 1937, No. 12702. Convention date, May 4, 1936. [Class 55 (ii)] Solid carbonaceous materials are moulded with substances generating an oxidizing medium at raised temperature and a binder if necessary, and the agglomerates are exposed in a confined zone to a temperature from at least 650-750‹ C. for ¢-¥ hour. The baking is preferably effected for the first 10 minutes in an oxidizing atmosphere to initiate a partial combustion. Ammonium or sodium nitrate or potassium permanganate are suitable for providing the oxidizing medium. In an example the agglomerates comprise 40 per cent of wood, previously converted by acidification and electrolysis into a dextrine-containing paste, 40 per cent of soft coal, and 10 per cent each of ammonium nitrate and of a mixture of pitch and tars. The moulded products are heated in an oxidizing atmosphere to 650-700‹ C. ; after combustion has started the oven is closed, the reactions continuing for ten minutes with a moderate introduction of air and for a further 20-30 minutes without the supply of additional air or heat.
Patent GB-1371744-A (GB)
Title: On-board container-lifting appliance for aircraft
IPC: B64C1/22
Filed: 1973-03-16
Abstract: 1371744 Loading containers into aircraft MESSERSCHMITT - BOLKOW - BLOHM GmbH 16 March 1973 [25 March 1972 (2)] 12748/73 Headings B8E and B8Q A platform elevator for loading an aircraft comprises a platform 12, 13 mounted between the lower part 24 of telescopic booms 14 and is raised and lowered by motor driven pulleys 34 driving a chain 28 passing over spaced pulleys 29, 30 on the lower part 24 and pulleys 31 on the upper part 23 which latter pulleys always remain between the pulleys 29, 30 whatever the relative position of the part 23, 24. As the platform rises it comes against the upper projections 33 of the lower part 24 and then propels it upward telescopically on the part 23. In order to stow the mechanism within the aircraft an hydraulic cylinder 102, Fig. 6, acting through a linkage 101-106 swings the mechanism into the stowed chain line position at the same time collapsing the supporting strut 110 and strut 109 and lever 108 against the boom 114 as shown. The stowing mechanism is disposed below the load floor.
Patent GB-635718-A (GB)
Title: Improvements in and relating to reciprocating pumps
IPC: F04B1/053
Filed: 1947-05-12
Abstract: 635,718. Radial cylinder pumps. MACTAGGART, SCOTT & CO., Ltd., and RUSSELL, R. C. May 12, 1947, No. 12750. [Class 102(i)] A radial cylinder pump has a pump body a mounted inside an outer casing e forming a suction reservoir and provided with a plurality of radial openings d into which are removably fitted pump assemblies each comprising a cylinder unit p with suction and delivery valves r, q respectively and a spring - loaded piston s actuated by an eccentric h on a driving shaft g, the delivery from each cylinder being conveyed through ducts l to a common manifold m, formed by the upper surface of the outer casing and a complimentary ring n, which communicates with a delivery duct o.
Patent GB-1302962-A (GB)
IPC: B04B7/18
Filed: 1970-03-17
Abstract: 1302962 Centrifuge drum RHEINSTAHL HUTTENWERKE AG 17 March 1970 [22 March 1969] 12754/70 Heading BID [Also in Division F4] A hollow centrifuge drum 1 has elegonated perforations with rounded ends 4 in its wall, the length of each perforation being between one and a half times and twice the distance apart between the straight sides of the perforations. When in use the drum 1 is subjected to the orthogonal stresses indicated by the arrows 2, 3, the stress 3 being the greater. It is stated that as the direction of elongation of the perforations is parallel to the greater stress 3, the stresses occuring in use in the vicinity of the perforations are reduced.
Patent GB-1001121-A (GB)
Title: Piston ring
IPC: F16J9/14
Filed: 1962-04-03
Abstract: 1,001,121. Piston packing. GOETZWERKE FRIEDRICH GOETZE A.G. April 3, 1962 [April 7, 1961], No. 12774/62. Heading F2T. In a piston packing housed in a groove in the piston 1 and comprising either a split ring having an axially stepped joint 3, 4, Fig. 2, or a pair of superimposed split rings 13, 14, Fig. 4, arranged to break joint, the gap 5, 15 on the high pressure side is uncovered radially whilst the gap 6, 16 on the other side is closed radially from the inner side of the ring by sealing means, e.g. insert 7, Fig. 1, urged to close the gap by pressure fluid that enters the piston groove through the first gap 5, 15. As shown in Fig. 1, the gap and insert are wedge-shaped. In a modification, Fig. 6, the gap is closed radially by a ring 23 located in a recess in the ring 22. In a further modification, Fig. 9, the sealing means is a wavy spring 29 having a plain portion at the gap 21.
Patent GB-1286773-A (GB)
Title: Vehicle safety systems utilizing an inflatable confinement
Inventor: JOHNSON JAMES THOMAS
IPC: B60R21/272
Filed: 1971-05-03
Abstract: 1286773 Crash bags OLIN CORP 3 May 1971 [16 June 1970] 12801/71 Index F4P 1A1X P1B2A In a crash restraint apparatus a rupturable means 46 is projected by a propellant charge 56 to dislodge a closure means 40 of a housing 14, thus permitting fluid from a pressurized reservoir 4 and hot gas from a propellant chamber 52 to inflate a flexible confinement 6. The rupturable and closure means 46, 40 having weakened areas 48, 42 respectively are propelled into a diffuser 34. A plate 64 having orifices 66 restricts passage of gas from the chamber 52 to the housing cavity 24. Upon collision a sensor 18 produces an electric current which ignites a squib 60 of the propellant chamber 52.
Patent GB-583544-A (GB)
Title: Improvements in or relating to undergarments
IPC: A41B9/02
Filed: 1944-07-05
Abstract: 583,544. Pants for personal wear. DONALDSON, E., and CHATFIELD, F. July 5, 1944, No. 12806. [Class 141] A close-fitting pair of pants or knickers consists of a back portion stretchable in a vertical direction only, front and crotch portions stretchable only laterally, and a narrow, unstretchable front strip. The one-way stretch may be obtained by using a ribbed woven material. As shown, the front portion 10 is divided into two zones by a vertical piece 11 made of three layers of material, the central one being non-stretchable. The three layers are sewn together by stitches 11e from the top as far as a line of stitching 11a, below which the two outside layers only are joined, to form a vertical slit. The waistband 13 is made of woven elastic material with circumferential stretch only. The crotch piece 12 has ends 12a and 12b substantially the same distance from the waistband. 13. The back portion 14 is slightly gathered into the waistband. Very short leg portions 15 are made of tape or fabric slightly stretchable circumferentially. In a modification, longer leg portions are made as continuations of the front portion.