baber/WOPTO huggingface dataset:
Patent GB-1171278-A (GB)
Title: Improvements in or relating to Cotton Harvesters
Inventor: FERGASON RECTOR CHARLES
IPC: A01D46/18
Filed: 1968-07-31
Abstract: 1,171,278. Cotton harvesters. ALLISCHALMERS MFG. CO. 31 -July, 1968 [10 Aug., 1967], No. 36540/68. Heading AlF. A cotton picking spindle drive and stripper bushing mounting assembly for a drum type cotton harvester has a picking drum 35 rotatably driven on a vertical shaft 29, and a number of vertical stripper bars 44 movable radially inwardly and outwardly relative to the vertical shaft 29 during rotation of the drum. Picking spindles 38 project horizontally from the drum through apertures 49 in the stripper bars 44, and drive gears 39 are mounted on the drive shaft 29, each gear 39 driving a respective gear 45 on each spindle 38 to rotate the spindle about its longitudinal axis. Each of the spindles is provided with a picking portion (74), Fig. 6 (not shown), projecting from the drum, and a cotton stripper bushing 60 is mounted on each spindle for rotation therewith and is movable longitudinally along the spindle during rotation. Each of the drive gears 39 is mounted on shaft 29 for limited longitudinal movement to permit self-aligning of each drive gear 39 relative to its associated spindle gear 45, and each of the stripper bars 44 has a series of vertically spaced horizontally extending apertures 49, a respective stripper bushing being received in each aperture; the vertical extent of each aperture being such as to permit limited vertical movement of the respective stripper bushing relative to the stripper bar. Each bushing 60 may be rotatably mounted in a guide bearing 54 non-rotatably held in aperture 49, each aperture 49 being of oval shape Fig. 3 (not shown) to permit vertical movement of the bushing 60 and the bearing 54 in the aperture. A front plate 67 may hold the bushings 60, each provided with a thrust collar 62, in the guides 54, with each thrust collar held between a collar 56 on bearing 54 and a washer 63. Part of bushing 60 then projects through an oval shaped aperture 66, Fig. 3 (not shown) in front plate 67. The bushings 60 may be provided with inwardly projecting keys (72) which coact with grooves (73), Figs. 5 and 6 (not shown), in the spindles 38 to strip the picked cotton when the stripper bar pushes the bushings outwardly along the spindles. The drive to the movable parts may be taken from the power take-off of an engine (1) mounted on the machine, which engine also provides drive to the ground wheels (3), Fig. 1 (not shown). Stripper units (12) are mounted each side of the machine. Specifications 1,171,277, 1,171,279 and 1,171,280 are referred to.
Patent GB-1189777-A (GB)
Title: Tracer Device for Copying Machine-Tools.
Inventor: GAMBIN PAUL
IPC: B23Q35/32
Filed: 1968-07-31
Abstract: 1,189,777. Copy-milling. GAMBIN S.A. 31 July, 1968 [14 Sept., 1967], No. 36594/68. Heading B3K. [Also in Divisions B6 and G3] A tracer device for controlling a copying machine-tool, adapted for engraving as well as contour copying, has an electric contact system actuated by a spring member directly in response to axial thrust of the tracer rod when engraving and indirectly in response to the tipping of a hub through which the tracer rod passes during contouring. As shown, a tracer finger 10 is received in a rod 1, slidable in a hub 2 which is gimballed 16, 17, 21 in a bell-shaped housing 12 slidable in a casing 7. Axial movement of the rod 1, through a lever 34 causes selective engagement of contacts 42 on both sides of a bar 41, with fixed contacts, such as 43, 45. Angular movement of the rod 1 causes a tilt of the hub 2 and an attached plate 5 and a consequential axial movement of the rod 1 through a shoulder 23 of the rod. The lever 34 is also actuated by an axial movement of the bell-shaped housing 12 through a rod 55 and an intermediary lever 29. The lever 34 is biased towards the rod 1 by a spring, not shown. The plate 5 is made conductive and when tilted selectively grounds flush contacts, such as 61-63, in a non-conductive annular plate 6 which are used to determine the selection of drives for a contouring operation. During an engraving operation the tracer movement is translated into displacement of the lever 34 and during a contouring operation the tilt of the tracer is amplified through the movement of the housing 12 and the lever 29 whereby the sensitivity is made substantially the same as for an engraving operation.
Patent GB-326546-A (GB)
Title: Improved apparatus for regulating, varying or controlling the flow of solid, gaseous or liquid media
IPC: F16K7/08
Filed: 1928-12-15
Abstract: 326,546. Head, H. C. Dec. 15, 1928. Shoots.-An apparatus for regulating the flow of liquids, gases or solid material through a pipe system, of the type in which a number of overlapping strips or slats d are secured at their ends to relatively rotatable rings e, c<1> is controlled bv one or more Bowden wires. The device may be used for regulating the charging of material into or discharging from shafts, bins, furnaces, producers or the like, the cross-sectional area being momentarily adjusted to pass larger particles than normal. Two or more such regulating devices may be interconnected so that they may be conjointly controlled, though each may pass a different material. Instead of deforming the strips by relative rotation of the rings, they may be deformed by inwardly directed pressure.
Patent GB-368765-A (GB)
Title: Improvements in frictional materials for brakes, clutches, variable friction gearingand the like
IPC: F16D69/02
Filed: 1930-12-10
Abstract: 368,765. Compound fabrics ; brakes; clutches ; friction gearing. ROBERTSON, J. H., ROBERTSON, J., and GUTTERIDGE, L., 1, Albemarle Street, Piccadilly, London. Dec. 10, 1930, No. 37258. [Class 140.] A frictional material for variable friction gearing, brakes, clutches, &c. consists of a non-combustible fibrous material, such as woven asbestos fabric, treated with a binder, e.g. a phenol-formaldehyde resin, and combined with cork or a composition of granulated cork or cork flour also treated or impregnated with a binder, the two materials being made up in alternate layers so that both components are exposed at the wearing surface. Preferably, compressed granulated cork is treated with the binder, spread under heat and pressure on a linen &c. backing, similarly treated with the binder, and combined in alternate layers with the treated asbestos fabric as shown in Fig. 2, in which a, a<1>, a<2> are the asbestos layers and b, b<1> the cork ; the cork layers are preferably thicker than the asbestos and the inner layers of the asbestos are thinner than the outer. When the material is to be built into the form of a ring, the sheets a, b are wound one over the other on a former, the ends of the sheets secured, the whole placed in a mould and heated under pressure to harden the binder. The composite block or ring may be cut into sheets, blocks, segments, or annuli so that the individual layers extend at right-angles to the wearing surface. In Fig. 5, the composite ring produced is shown in cross section ; a bevelled surface e<1> may be formed thereon to engage with a conical disc f to form a variable speed friction gearing. The Provisional Specification states also that the asbestos may be used in the pulverized or finely ground form, rolled out or pressed into a sheet after incorporation with the binder, and glue, gelatine, and casein products may be used as binding-material. Alternatively, other fibrous materials, such as ramie, cotton, silk, wool, or flax in yarn form, may be employed.
Patent GB-1196547-A (GB)
Title: Electrical Switching Circuit Using Series Connected Transistors
IPC: H03K17/60
Filed: 1968-08-05
Abstract: 1,196,547. Transistor switching and oscillator circuits. BRANSON INSTRUMENTS Inc. 5 Aug., 1968 [15 Aug., 1967], No. 37292/68. Heading H3T. To ensure equal voltage distribution across each transistor of a set of series connected switching transistors, a capacitor-coupled transformer winding is connected across each transistor. In Fig. 3 two windings 41, 42 of a bifilarly wound autotransformer 40 are capacitively coupled across transistors 11, 12 respectively. Similarly 41A, 42A are across 13, 14 of the other set of switching transistors. The two sets of transistors which conduct alternately are connected to an oscillatory circuit 19. This circuit supplies via transformer 53, an ultrasonic energy, piezo-electric transducer 55 and also the feedback for the gating potentials of the respective sets of transistors. The two transistor sets of Fig. 3 are replaced by 3 transistor sets in Fig. 5.
Patent GB-1363042-A (GB)
Title: Tailless wedge bonding of gold wire to palladium-silver cermets
IPC: H01L21/00
Filed: 1972-08-10
Abstract: 1363042 Welding by pressure GENERAL MOTORS CORP 10 Aug 1972 [19 Aug 1971] 37294/72 Heading B3R [Also in Division H1] In bonding a hard-as-drawn substantially pure gold wire directly to a palladium-silver cermet surface, the wire having a diameter of 1-2 mils, a tensile strength of at least 33,000 p.s.i. and an elongation of 1À5%-3% before breaking, the wire is seated in an elongated groove on the working tip of a heated ultrasonic bonding wedge tool and is pressed on to the surface by the ultrasonically vibrated tool tip heated to 150 C.-225 C. at a pressure equivalent to 2000-5000 p.s.i. so as to bond the wire to the surface without significant work hardening, and an unbonded portion of the wire is pulled to tear it from the bonded portion, thus forming a tail-free bond. In an example an alumina substrate 10 is located on a support 14, the substrate 10 carrying a semi-conductor die 12, e.g. a silicon transistor or an integrated circuit soldered at 16 to a palladium silver cermet pad 18. Palladium silver cermet pads 20, 22 are provided on the substrate 10 and evaporated aluminium pads 24, 26 are provided on the die 12. The substrate 10 is moved to bring the pad 26 beneath a bonding tip 30 carried by the arm 28 of an ultrasonic transducer, the tip having an elongated groove 34 and being surrounded by a resistance heating coil 36. The free end of a gold wire 38 of 99À99% purity having a diameter of 1.5 mil. has been moved by a clamp 40 to beneath the tip 30 and seated in the groove 34, the tip being heated to 150 C.-200 C. The tip is pressed on to the pad while vibrating to bond the wire to the pad. The tip is raised with the clamp open and the substrate moved to position the pad 22 beneath the tip, the gold wire unrolling from a spool. The hot tip then ultrasonically bonds the wire to the cermet pad using a force of 40-45 gms. and the clamp is actuated to pull the wire away from the tip to tear the wire from the bond. The tip is then raised and the new free end fed under the tip. The bonding of aluminium wire to a gold cermet area on a palladium silver cermet surface in prior use is described.
Patent GB-1204191-A (GB)
Title: Current-control apparatus for use in electrical machining processes
IPC: B23H3/02
Filed: 1967-08-14
Abstract: 1,204,191. Protective arrangements. EXCELL-O CORP. 14 Aug., 1967 [22 Aug., 1966], No. 37339/67. Heading H2K. An overload protective arrangement for an electro-chemical machine having a power supply 14 connected to a workpiece 90 and a tool electrode 92, comprises load current sensing means, e.g. a shunt 12, a control circuit 16, 18, 20 connected between the means 12 and a switching device 232 which is effective to cause rapid interruption of the supply current when a signal derived from the means 12 exceeds a value determined by a reference signal. The control circuit comprises a circuit 16 for sensing the magnitude of the current through the shunt 12 and producing a filtered, limited, amplified output signal which is applied to a circuit 18. The latter circuit produces an output signal when the signal from the circuit 16 has a predetermined relationship to an adjustable reference signal. The output from the circuit 18 turns off a transistor switch 188 to remove a short circuit from a unijunction transistor oscillator 190 which provides trigger pulses to a silicon controlled rectifier circuit 192 controlling the energization of the switching device 232. The transistorized circuit elements are described and illustrated. Fig. 2 (not shown).
Patent GB-784735-A (GB)
Title: Improvements in pressure seal structures for a movable rod-like element
IPC: F16J15/32
Filed: 1955-12-30
Abstract: 784,735. Stuffing-box substitutes. GENERAL ELECTRIC CO. Dec. 30, 1955 [Jan. 14, 1955], No. 37451/55. Class 122 (5). Sealing means for a movable rod 3 extending through an aperture 2 in a chamber wall comprises a tubular structure 4 surrounding the rod, spaced pairs of metallic rings 30 secured to the structure and flexibly contacting the rod at their inner peripheries and means to supply or exhaust gas to or from the space between at least one pair of metallic rings 30. A tubular element 5, integral with a vacuum chamber 1, has secured to a flange 8 thereof, by bolts 33, an assembly comprising plate elements 10, 20 and 23, interposed chamber elements 14 and 22 and rings 30 clamped between adjacent plate and chamber elements. The annular space between each pair of rings 30 is connected, as by a conduit 34, to a source of vacuum. The rings 30 are preferably of heat-resistant sheet metal and have a radial flange 29 from which extends a frusto-conical portion 31 provided with spaced slits 32 to increase its flexibility and having a diameter less than that of the rod 3. The arrangement shown is particularly applicable to a continuous casting process in which the rod 3 is a hot ingot continuously moving out of the vacuum furnace 1, the element 5 being cooled by water circulated through a helical passage 6 and joint rings of elastic material between plates and elements being protected by circulating coolant through passages 11, 21 and 26 in plates 10, 20 and 23.
Patent GB-322362-A (GB)
Title: Improvements relating to water tube boilers
IPC: F22B13/02
Filed: 1928-12-19
Abstract: 322,362. Hartley & Sugden, Ltd., and Fox, S. Dec. 19, 1928. Water-tube boilers.-Each of the headers A, B of a boiler for central heating or domestic hotwater supply is made by pressing sheet metal to a channel shape, the boiler tubes C being then expanded into the bottom of the channels and the headers closed by cover-plates a' secured by welding. The headers are made in the form of a U with a straight back, the front ends of the sides being closed bv plates welded into the ends. The grate D is supported on lugs b<1> on the lower header. The sides and back of the boiler are enclosed by double sheets of metal with asbestos between the sheets.
Patent GB-960330-A (GB)
Title: A process for the preparation of 2,6-dimethylol tetrahydropyran
Filed: 1962-10-04
Abstract: The invention comprises the novel compound 2,6-dimethylol tetrahydrofuran.  It may be prepared by the hydroformylation of 3,4-dihydro-2-methylol-a -pyran in a solvent with a mixture of carbon monoxide and hydrogen at elevated temperatures and pressures in the presence of a catalyst containing iron, cobalt or nickel.  The preferred temperatures for the process are in the range 100 to 600 DEG C. and preferred pressures in the range 50 to 500 atm. The catalyst may be iron, cobalt or nickel or their salts or compounds, the preferred one being dicobalt octacarbonyl.  The starting material 3,4-dihydro-2-methylol-a -pyran may be prepared by the hydrogenation of dimer acrolein using copper chromite as catalyst.
Patent GB-1169883-A (GB)
Title: Improvements in or relating to the Application of Chemical Substances over Large Areas
Inventor: RANDALL DAVID CORBET
IPC: B60V1/00
Filed: 1965-09-03
Abstract: 1,169,883. Crop spraying. PENETONE CO. Ltd. 24 Oct., 1966 [3 Sept., 1965], No. 37793/65. Heading A1D. [Also in Division B7]  An air cushion vehicle having a double flexible skirt forming a peripheral jet nozzle 32 carries a tank 18 for a substance to be sprayed on to a surface. 23 over which the vehicle is operating a pump 20 and control valve 21 whereby the substance may be selectively delivered to spray nozzles 33 located in the peripheral jet nozzles 32 for entrainment by the curtain forming air delivered by lift fan 15. Alternatively the spray nozzles 33 may be arranged on the inner or outer periphery of the vehicle's flexible skirt. Substances to be sprayed include chemicals for dispersing oil on water, crop spraying compounds or fluid for de-icing roads.
Patent GB-899769-A (GB)
Title: Temperature measuring system
IPC: B21C51/00
Filed: 1958-11-25
Abstract: 899,769. Automatic temperature control systems. INLAND STEEL CO. Nov. 25, 1958 [Dec. 16, 1957], No. 37927/58. Class 38 (4). [Also in Group XX] Temperatures of a plurality of areas spaced longitudinally along a machine roller are measured by directing a plurality of liquid sprays on to the areas and measuring the temperature of liquid collected from each area. In Fig. 1, water is sprayed on to the upper roll 10 of a steel rolling mill at a predetermined temperature and at a constant rate from a plurality of nozzles 22 arranged longitudinally relative to the roll. The temperatures of water collected in a corresponding number of troughs 30 are measured by thermocouples 40, the electrical outputs of which operate indicators 42 and/or control the flow of cooling water from a plurality of nozzles 20 to maintain constant and equal temperatures at each zone. The temperature of one zone may be used as a reference and the temperatures of other zones controlled relative thereto.
Patent GB-1249552-A (GB)
Title: Axles for toy vehicles
IPC: A63H17/26
Filed: 1969-01-01
Abstract: 1,249,552. Undercarriage for toy vehicules. MATTEL Inc. 1 Jan., 1969 [8 Jan., 1968], No. 37968/70. Divided out of 1,249,551. Heading A6S. Identical front and rear axles 16 and 18 carrying wheels 20, 22, 24 and 26 are mounted on the frame 12 of a toy vehicule 10. Upstanding flanges 14 are formed round the edge of the frame to serve as means for interlocking with a toy car body. The axles are formed with U-shaped centre portion 27 and axle shaft portions 28, 30 extending therefrom. The U- shaped centre portion has a base or bight 32 which is substantially straight. The sides of the U-shaped portion are directed towards each other and axle shaft portions 28, 30 are positioned on the ends of the sides. In the unstressed condition, axle shaft portions 28 and 30 are directed slightly downwardly from the plane defined by base 32. Flanges 14, 38, 39 and 40 extending upwardly from the frame 12 restrain the axle shaft portions from forward or rearward motion, and a boss 42 keeps the inboard ends of them separated. Hooks 44 and 46 extend over the top of sides 34 and 36 to retain base 32 against a wedge 47 on the frame. Consequently loads on the wheels causes rotation of the axle shaft portions 28, 30 about their inboard ends causing torsional deformation giving the vehicule a springing effect. The wheels 26 of the vehicule are mounted on bearings 50, 52 which are freely rotatable on the axle. The ends of the axle are swaged to prevent the bearing coming off. Each wheel has a hub bore 64 (Fig. 5, not shown) of such a diameter that it can be snapped over the bearing, which has ridges 56, 58 for maintaining the wheel on the bearing. The swaged end of the axle 62 engages the inside surface of the hub cap 56 to prevent the wheel assembly from substantial inward motion upon the axle shaft portion 30.
Patent GB-1409587-A (GB)
Title: Process for synthesising cis-alpha-santalene and cis-alpha- santalol
IPC: C07C13/68
Filed: 1973-08-10
Abstract: 1409587 Tricyclene derivatives AGENCE NATIONALE DE VALORISATION DE LA RECHERCHE 10 Aug 1973 [25 Aug 1972] 38011/73 Heading C5E [Also in Division C2] A 10-substituted tricyclene in which the substituent is a saturated or unsaturated, substituted or unsubstituted aliphatic hydrocarbon chain, is prepared by treating a #-halotricyclene with sodium benzene sulphinate to form the corresponding phenyl sulphone, condensing on to the α-carbon atom of the phenyl sulphone an halogenated, saturated or unsaturated, substituted or unsubstituted aliphatic hydrocarbon chain by elimination of the halogen atom in the presence of a strong base, optionally treating the condensation product to modify its substituents, and subjecting the product or modified product to a desulphonating reduction. The process is particularly useful for obtaining compounds of known stereochemistry by using a halogenated chain of known stereochemistry as the starting material. The process is illustrated by the preparation of α-santalene and 10,11-dehydro-α- santalene by reacting (-) #-bromo-tricyelene with sodium benzene sulphinate in DMF to give #-phenylsulphonyl tricyclene, reacting this with butyl lithium and then with 3-methyl-1-chloro- 2-butene to give 10-phenylsulphonyl-α-santalene, treating this with sodium amalgam in ethanol to produce a mixture of α-santalene and 10,11-dehydro-α-santalene, and separating the mixture by chromatography.
Patent GB-1274046-A (GB)
Title: Containers and process for asepsis
Inventor: BRUMFIELD ROBERT CLARENCE
IPC: A61L2/14
Filed: 1969-07-29
Abstract: 1,274,046. Microwave-sterilising. R. C. BRUMFIELD; J. T. NAFF and A. T. W. ROBINSON. 29 July, 1969 [29 July, 1968], No. 38055/69. Heading ASG. [Also in Division B8] A package (see Division B8) comprising a medical dressing 7 enclosed in a wrapper 4, 5 having a metallic or part-metallic wall 5, is placed in an evacuated chamber 70 and subjected to microwave radiation which is concentrated by the wall 5 to cause glow discharge within the package, thus sterilising the dressing 7. Microwave radiation having a frequency range of 890-22,250 Mhz enters the cavity through a window 72 and is reflected by the wall 5 to form standing waves with the incoming radiation. At a distance of a quarter of a wave length from the wall 5 these waves give a maximum field to initiate discharge. In a modification, the wall 5 contains metal particles which exert a point-effect on the radiation.
Patent GB-328276-A (GB)
Title: Improvements in the deacidification and bleaching of oils and fats
IPC: C11B3/00
Filed: 1928-12-24
Abstract: 328,276. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). Dec. 24, 1928. Fatty oils, purifying.-Fats and fatty oils are simultaneously bleached and deacidified by mixing the oils with a finely divided adsorption agent, for example adsorption carbon, and heating the mixture at reduced pressure with a stream of inert gas bearing a liquid e.g. water, benzene, or alcohol, in the state, of a mist as described in Specifications 213,267 and 235,792. In an example a mixture of Fuller's earth and sesamum oil is treated with wet saturated steam, and the Fuller's earth removed by filtration. Specification 277,085 also is referred to.
Patent GB-919739-A (GB)
Title: Improvements in office chairs
Inventor: STREET LESLIE JOHN
IPC: A47C7/00
Filed: 1960-11-05
Abstract: 919,739. Seat frames. TAN-SAD CHAIR CO. (1931) Ltd. Nov. 3, 1961 [Nov. 5, 1960], No. 38087/60. Class 52 (2). An office chair incorporates a combined seat and arm rest support comprising a Y-shape metal pressing 1 having an inverted trough section centre limb and angle section splayed limbs 1a, a dependent stem 2 secured to the centre web 1b between the side flanges 1d of the trough section of the pressing, and a pair of open-ended tubes 3 extending through apertures in the side flanges 1d and welded or brazed to the side flanges and to the stem 2. The stems 6 of arm rest assemblies are secured in the socket ends of the tubes 3 by means of set screws 5 which also connect seat supporting brackets 4 to the tubes 3.