baber/WOPTO huggingface dataset:
Patent GB-888837-A (GB)
Title: Delayed automatic-gain-control system
IPC: H03G3/30
Filed: 1960-11-11
Abstract: 888,837. Transistor amplifying circuits. HAZELTINE CORPORATION. Nov. 11, 1960 [Dec. 1, 1959], No. 38831/60. Class 40(6). In a transistorised radio receiver automatic gain control is derived from a separate diode rectifier 31 the cathode of which is directly connected to the collector of the last I.F. amplifier transistor 21. The anode of the diode 31 is connected to B- over load resistor 33, the diode obtaining a delay bias from the voltage drop produced by the collector current of the transistor 21 in the D.C. resistance of the primary 26 of the I.F. output transformer.
Patent GB-1179308-A (GB)
Title: Electronic Series-Parallel Converter.
IPC: H03F1/20
Filed: 1967-08-23
Abstract: 1,179,308. Thermionic-cathode tubes. EUROPEAN ATOMIC ENERGY COMMUNITY. 23 Aug., 1967 [25 Aug., 1966], No. 38841/67. Heading H1D. An electronic series-parallel converter comprises, in a vacuum vessel, an extended cathode 2 surrounded by a control grid 3 which together provide a primary waveguide system with a non-negligable delay, a number of helical anodes 12 disposed coaxially around the control grid, each anode 12 co-operating with a conductive wall 1 to provide a secondary waveguide system having a non-negligable delay, wherein the secondary waveguide systems, by means of keying pulses or windows supplied by a control grid, take over extracts of a wavetrain disposed on the primary waveguide system. The wavetrain extracts from each secondary system may be processed by conventional techniques and thus if, as shown, there are nine secondary systems then information supplied at nine times the processing rate may be satisfactorily processed in parallel. As shown, cathode 2 is an open toroid and the control grid 3 has a number of equally long keying-pulse supply lines which extend in a uniform distribution to the centre 8 of the toroid where they are interconnected. The length of wire forming the anode helices is preferably such that delays on the primary and secondary systems are equal. The wavetrain to be converted is fed into the primary system at one end 5, the other end being terminated non-reflectingly by a resistance or impedance 4; similarly the secondary systems have output terminals 7 at one end and a non- reflective termination 6 at the other end. When the wavetrain extends over the whole of the primary system a positive keying pulse is supplied simultaneously to the whole of the grid to transfer all the data stored on to the various anode helices, and for continuous transfer of data the recurrence frequency of the keying pulses is determined by the delay of the primary system. In a second embodiment, Figs. 3 and 4 (not shown), the cathode is in the form of a straight rod, and the wavetrain is supplied to the primary system continuously from one end and the keying pulses supplied to the grid from the other end, the two thus travelling in opposite directions at the same speed; the frequency of the keying pulses being twice the delay on the primary system. In either embodiment a second control grid outside and coaxial with the first control grid 3 may be provided to supply the keying pulses, this arrangement simplifying the matching at the end of the lines.
Patent GB-1249992-A (GB)
Title: Improvements in or relating to proportioning pumps
Inventor: WEBSTER BERNARD
IPC: F04B5/02
Filed: 1968-08-14
Abstract: 1,249,992. Reciprocating pumps. J. J. LORANT. Aug.14, 1969 [Aug.14, 1968], No.38943/68. Heading F1A. In a pump comprising at least two pistons 3, 4, the rods 5, 5a of which are coupled for simultaneous reciprocation in respective cylinders 1, 2, at least one of the pistons 4 is slidable on its rod 5 between abutments 7, 8 adjustable to vary the piston stroke. Thus liquid is pumped from the individual cylinders at predetermined proportionate rates. The cylinders 1, 2 shown are coaxial and are reciprocated by an hydraulic or pneumatic motor, Fig.2 (not shown) comprising a piston slidable in a cylinder and having a rod coaxially connected to the rod 5a. The member connecting the motor and pump rods is arranged to operate end of stroke changeover valves adjustable to vary the stroke of the motor. For Figure See next page
Patent GB-821795-A (GB)
Title: Improvements in liquid flow transport systems for raising coal
IPC: E21F13/04
Filed: 1957-12-16
Abstract: 821,795. Conveying solids in liquid. NOGAMI, T. Dec. 16, 1957 [Sept. 27, 1957; Nov. 1, 1957], No. 39001/57. Class 102(2). Coal is fed to a hopper 3 together with water and enters a tank 2 through a valve 7. On closure of the valve 7 high pressure liquid is fed to the tank 2 by a pipe 9 and the liquid impinges on an impeller 11, which rotates a feed screw 36. The outlet from the tank 2 is connected through a valve 17 to a liquid flow pipe 14 and when the pressure in the tank 2 rises sufficiently the valve 17, which is loaded by a piston 24 in a pressure cylinder 25, partially opens which movement is arranged to cause the collapse of pressure in the cylinder 25 and the valve 17 is fully opened and coal passes to the pipe 14 and up the pipe 13. Flow up the pipe 13 is assisted by intermittent flow of air from an accumulator 27. In a modification the water supply from the pipe 9 is replaced by an air supply.
Patent GB-933480-A (GB)
Title: Improvements in or relating to cases for carrying bottles
IPC: B65D85/30
Filed: 1960-11-14
Abstract: 933,480. Bottle crates. NOVO INDUSTRIAL CORPORATION. Nov. 14, 1960 [Nov. 13, 1959; May 3, 1960], No. 39116/60. Class 18. A carrying case 10 for bottles and the like comprises a perforated plastic base 12 with upstanding plastic handles 36 at each end formed integrally with the base, and two U-shaped metal wall sections 16 which are locked together around the handles so that the load carried is applied directly to the handles. The case is divided into four or more equal compartments by removable intersecting plastic walls 60, 61 longitudinally and laterally placed. The base 12 has the form shown in Fig. 1 viz. a grill of diagonally intersecting struts, and is surrounded by a rim 20 having a flange 22 as in Fig. 3, whose outer edge is turned down to form an outer leg 24 and an inner leg 26. The sides 14 have their lower edges 28 crimped round and under the above outer leg 24 of the rim, and their corners strengthened by beadings 32. Each handle 36 is formed by an upstanding panel 38 as an integral part of the rim 20 of the base 12 and has a beading 40 defining a handle opening 42. The beading has a continuous outer groove 44 into which are fitted slots in the engaging edges of the U-shaped wall sections 16 whose overlap at 46 carries a rivet 48 and a lap-over bracket 50 to secure the joint. The partition walls 60 and 61 are similar in form and comprise a series of panels 62 as shown in Fig. 3 connected by neck portions 68 suitably slotted at the centre of the walls to permit intersection. The end panel of the longitudinal wall 60 has a dovetail enlargement 74 fitting into a dovetail groove 76 in the handle panel 38 as in Fig. 3. The walls 60, 61 have spaced buttons 80 along their lower edges which press into open-ended sockets formed in the openings between adjacent diagonal struts in the base as shown in Fig. 1. The walls have off-set panels on their longitudinal sides to provide a surface suitable for advertising matter.
Patent GB-1481498-A (GB)
Title: Ink and wetting agent applicator
IPC: B41L25/14
Filed: 1975-09-25
Abstract: 1481498 Duplicating GERHARD RITZERFELD 25 Sept 1975 [10 Oct 1974] 39268/75 Heading B6C In a rotary duplicator, ink and wetting solution are both applied to a printing drum 2 by one roller 10. Wetting roller 11 passes solution 25 to the inking train, e.g. ductor roller 9 which is acted on by an adjustably and radially mounted, inflexible ductor blade 18 and has ink applied thereto from a body of ink material 23. Container 26 is automatically topped-up. Further wetting is produced by roller 35 in container 34. Other arrays of rollers are disclosed including spreader rollers and in one embodiment an offset machine is used. A pawl and ratchet mechanism control rotation of the drum 2.
Patent GB-1384416-A (GB)
Title: Endoprostheses for wrist joints
IPC: A61F2/42
Filed: 1972-08-23
Abstract: 1384416 Wrist joint SULZER BROS Ltd 23 Aug 1972 [6 Sept 1971] 39299/72 Heading A5R An endoprosthesis for a wrist joint comprises a part-spherical capitulum 1 mounted on a shank 2, and an acetabulum 5 consisting of two releasably connectable parts (5a, 5b), Figs. 5, 6, (not shown) which together define an opening 7 for the shank 2, the dimensions of the opening 7 being larger than those of the shank 2 adjacent the capitulum 1 to allow its movement in the acetabulum 5. The shank  2 and a shank 4 of the acetabulum 5 have rectangular sections in the rounded edges and grooves 15 for cementing in the bones. Cylindrical or spherical projections 3 on the capitulum 1 are movable in and guide slots 12 in the acetabulum 5 to restrict rotation of the capitulum 1 in two planes. Abutments (11) in the slots 12 restrict rotation of the capitulum 1 so that the shank 2 cannot engage the opening 7 when moved in the separation plane of the parts (5a, 5b). The opening 7 is lenticular and its major and minor dimensions subtend an angle of about 140‹ and 40‹ respectively at the centre of the capitulum 5.
Patent GB-997384-A (GB)
Title: Improvements relating to vacuum switch contact assemblies
Inventor: LAKE ANTHONY ALAN
IPC: H01H33/664
Filed: 1962-10-17
Abstract: 997,384. Vacuum switches. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Oct. 1, 1963 [Oct. 17, 1962; March 21, 1963; July 30, 1963 (2); July 31, 1963], Nos. 39302/62, 11294/63, 30223/63, 30224/63 and 30410/63. Heading H2B. In a vacuum switch the contact members 8, 9 are formed with engaging annular ridges 11, 12 in which are cut a plurality of radially extending slots 15, 16 which are inclined to the axis of the contacts, forming helical paths for the current and thus inducing a magnetic field between the breaking contacts to cause the arc to travel around ridges 11, 12 until extinguished. In a number of modifications the slots need not extend to the faces 13, 14 of the ridges 11, 12 (Fig. 4, not shown); more than one annular ridge may be provided (Figs. 5, 6, not shown); the slots may extend into the base portion 23 of the contacts (Fig. 7); or a magnetic insert 24 (Fig. 9) may be provided to increase the intensity of the magnetic field. The slots 15, 16 may be filled with a material of high electrical resistivity.
Patent GB-1388222-A (GB)
Title: Blocking capacitor for a thin-film rf transmission line
IPC: H01G4/06
Filed: 1973-08-20
Abstract: 1388222 Radiofrequency transmission lines HEWLETT-PACKARD CO 20 Aug 1973 [25 Oct 1972] 39354/73 Heading H1W A radio frequency transmission line includes a series blocking capacitor and consists of an insulating substrate 12, a ground conductor 14a, 14b, a conductive layer 20 (shown in dotted lines) deposited on the substrate, an insulating layer (22), Fig. 5 (not shown), on top of the layer 20 and a signal conductor consisting of two segments 16, 16<1> spaced by a gap 18<1> arranged over the layer 20 and the ground and signal conductors are substantially parallel in the region of layer 20. In Fig. 4 the gap 18<1> is of an interdigital form but a straight gap (18) can be used, Fig. 1 (not shown). The insulating layer (22) can consist of two materials, e.g. tantalum oxide formed on a conductive layer 20 of tantalum with silicon oxide or aluminium oxide on top. The conductors can be on the same or opposite sides of the substrate and the ground conductor need not be in contact with the substrate.
Patent GB-796949-A (GB)
Title: Electric arc welding of steel
IPC: B23K9/173
Filed: 1956-12-27
Abstract: A granular welding composition for use in a method of gas shielded arc welding (see Group XXII) comprises a slag producing component such as titanium dioxide, manganous oxide, ferrous oxide, silica as a silicate in combination with one of the oxides, calcium oxide, magnesium oxide, zirconia, potassium oxide, sodium oxide, lithium oxide, barium oxide and strontium oxide and a conductivity imparting component such as sodium aluminium fluoride, potassium silicon fluoride, calcium fluoride and calcium titanium fluoride.  The composition may also include weld alloying or modifying agents such as ferromanganese, ferrosilicon, ferrochromium, calcium molybdate and carbon or reducible compounds thereof.  A specified composition is:-CaO + BaO 22.5 per cent; CaF2 5.5 per cent; SiO2 37.5 per cent; Al2O3 14.5 per cent; MgO 11.25 per cent; MnO 7.25 per cent where BaO up to 2.0 per cent.  Specifications 433,723 and 608,075 are referred to.
Patent GB-1472450-A (GB)
Title: Machine for cutting potato dough pieces for fat frying
IPC: A21C11/18
Filed: 1974-09-11
Abstract: 1472450 Extruder for french fries AMERICAN POTATO CO 11 Sept 1974 39685/74 Addition to 1274863 Heading B5A Potato dough is extruded by a piston 2 from a cylinder 1, through a die comprising separating members 5 of non-circular cross-section and which are spaced apart to define an elongate dimension of a french-fry cut potato piece, and the dough portions separated by the members 5 are cut into pieces by severing means 6 which moves across the die. To avoid high dough pressures during the separating by members 5, which could give rise during cooking to blistering of and/or a leathery texture to the separated surfaces, the members 5 are of a maximum width at a distance from their upstream ends which is not greater than the width, and the spaces between the members comprise at least 60% of the area of the die. The members 5 may comprise a cross-section which is triangular, as in Fig. 2, or with their apices located downstream, or triangular upstream of a rectangular shape, or diamond, or square, or tapering in both the upstream and downstream directions. The members 5 may be straight, or of a meander configuration to define "crinkle-cut" chips, and may comprise stainless steel, or synthetic plastics when they may be towed in the downstream direction, Fig. 4 (not shown), to reduce tension from extrusion pressures. The members 5 may be formed integrally with a surrounding die frame 4, e.g. by machining from a sheet, or by moulding, and the frame 4 may define a circular aperture of the same size as the bore of the cylinder 1, and which produces dough portions of varying elongate dimensions. The piston 2 may be manually intermittently operated by a lever, via a ratchet means, and the severing means 6 may comprise a wire which is manually movable across the die, by pivoting about an axis exteriorly of the cylinder 1. The severing means may also comprise a plurality of members spaced identically to and aligned with the members 5 during extrusion, and displaceable transversely by the distance between the members 5 to effect the severing. Such members 6 may comprise one in number more than the members 5 and are movable between positions in which either all but the first; or the last thereof, are aligned with a member 5. The members 6 may be of stainless steel or synthetic resin and may be machined or moulded similarly to the members 5, and may be of triangular section with a smaller height than width, and of a width not greater than that of members 5 so as not to obstruct extrusion.
Patent GB-1273800-A (GB)
Title: Improvements in or relating to vibration-sensitive fuses
IPC: F42C14/02
Filed: 1969-08-08
Abstract: 1,273,800. Grenade or mine fuze. DYNAMIT NOBEL A.G. 8 Aug., 1969 [9 Aug., 1968], No. 39906/69. Heading F3A. Fuze for hand or rifle grenades or mines comprises in combination an ignitable delay composition 4, propellent composition 5 ignited by the delay composition and which causes a first contact member 9 connected to a battery 7 to move to an armed position. In this position, either as shown a second co-operating contact member 14 connected to the battery is free to be moved by shock or impact to engage the first contact and so detonate the grenade or mine, or alternatively the first contact member is arranged to move under shock or impact after arming, the second contact member being fixed. As further shown, the ring member 14 is centred by springs 13. An insulating disc 10 and movable insulating cup 12 isolate the contacts in safe position. In an alternative embodiment, Figs. 5 and 6 (not shown) the first contact member is carried on one end of a conductive spring which allows lateral movement after arming. The arming movement is performed by movement of the battery as a whole. Release of a handle 1 allows a percussion cap 2 to strike a primer 3. The propellent gas also forces caustic potash solution from a reservoir 6 into the battery 7 to activate it.
Patent GB-1315224-A (GB)
Title: Magnetic thin film plated wire memory
IPC: G11C11/04
Filed: 1971-08-25
Abstract: 1315224 Magnetic storage devices FUJI DENKI KAGAKU KK 25 Aug 1971 [29 Aug 1970] 39915/71 Heading H3B In a plated wire memory plane, the plated wires 7, Fig. 1, are supported by but insulated from a grooved conductive plate 6 which serves as a return path for current flowing in drive lines 3 which overlie the wires. The drive lines are embedded in and insulated from a magnetic sheet 2 so as to concentrate the magnetic field they produce; this sheet is laminated to the wire carrying plate 6, and one end of each drive line is bent over and connected to the plate, Fig. 2 (not shown). The returning currents which flow through the plate tend to pass directly under the drive lines which give rise to them, which minimizes interaction between adjacent lines. Adjacent drive lines are some 0À4 mm. apart, and adjacent plated wires are some 0À3 mm. apart. The magnetic sheet 2 is a mixture of a ferromagnetic power and organic material; the conductive plate 6 is a metal coated with a liquid fluorine rubber resin to insulate its grooves. The grooves may be rectangular or circular in cross-section.
Patent GB-1049629-A (GB)
Title: Improvements in methods of manufacture of semiconductor components
IPC: H01L21/225
Filed: 1965-09-20
Abstract: 1,049,629. Semi-conductor devices. INTERNATIONAL BUSINESS MACHINES CORPORATION. Sept. 20, 1965 [Sept. 24, 1964], No. 39955/65. Heading H1K. In a method of manufacturing a semi-conductor device first and second, at least partially superimposed, layers acting as sources of donor and acceptor impurities respectively are applied to the surface of a semi-conductor substrate which is then heated to diffuse the donor and acceptor atoms into the substrate. A transistor is produced by applying a layer 2 of SiO 2  containing Sn to the surface of an N- type GaAs wafer 1, Fig. 1 (not shown), applying a layer 3 of SiO 2  containing Zn over layer 2, Fig. 2 (not shown), applying a protective layer 4 of pure SiO 2  over layer 3 and the remaining surface of wafer 1, Fig. 3 (not shown), and heating the wafer to diffuse the Sn and Zn from layers 2 and 3 into wafer 1, Fig. 4. The Zn diffuses through layer 2 and to a greater depth than the Sn so that a thin P-type base layer is formed below the N-type emitter layer produced by the Sn. Since layer 2 reduces the diffusion depth of the Zn a graded thickness base layer may be produced by varying the thickness of layer 2, Fig. 5 (not shown). Layer 2 may be covered with a layer of pure SiO 2  before application of layer 3 to reduce the concentration of Zn atoms diffused into the wafer. In a specific example layer 2 is produced by pyrolytic decomposition at room temperature of a gas saturated with a mixture of Si(C 2 H 5 O) and Sn(C 2 H 5 ) 4 , and layer 3 is produced by reactive sputtering using a Si cathode covered with a Zn-Ga alloy. The method may also be used to produce Si and Ge devices.
Patent GB-1177167-A (GB)
Title: Wax and Polysiloxane Compositions
IPC: C09G1/12
Filed: 1967-08-31
Abstract: 1,177,167. Siloxane - wax compositions. DRACKETT CO. 31 Aug., 1967 [12 Sept., 1966], No. 39977/67. Heading C3T. [Also in Divisions C4 and C5] A wax and polysiloxane composition comprises a water-in-oil emulsion having an outer oil phase as the continuous phase and an aqueous phase as the discontinuous phase, the outer phase comprising a solvent vehicle containing the wax, and the aqueous phase in turn having the siloxane emulsified therein as a discontinuous phase, whereby the composition comprises a double emulsion. In addition to a volatile solvent the composition may also comprise an aerosol propellant. A suitable polysiloxane is a dimethylpolysiloxane having a viscosity of 50 to 20,000 centistokes at 25‹ C. The composition may comprise: 0-10% by wt. of wax, 5-75% by wt. of volatile solvents; 5-50% of propellant; 0À1-10% of dimethylsiloxane and 10- 90% of water. In addition, 0À1-10% of a mineral, animal or vegetable oil may be incorporated in the oil phase. Substantially all the propellant may be present in the oil phase. This may comprise a mixture of isoparaffins (mainly C 8 ), b.p. <300‹ F., Kawic Butanol value <20 and evaporation rate <20.
Patent GB-1066553-A (GB)
Title: Spindle driving arrangements
Inventor: DUFORT TIMOTHY NESBITT
IPC: D02G1/06
Filed: 1962-10-23
Abstract: 1,066,553. False-twist apparatus. ERNEST SCRAGG & SONS Ltd. Oct. 22, 1963 [Oct. 23, 1962], No. 40021/62. Heading D1D. A false-twist tube is driven by being held in contact, by a horse-shoe magnet, with driven and idle rollers there being a gap between the end faces of each pole of the magnet and the tube. The tube may have collars and the polepieces of the magnet may be concavely curved, while the roller may have an extension in contact with a driving belt. The tube may be axially treated by the magnet or by engagement of the collars with the plane faces of the rollers.
Patent GB-1426746-A (GB)
Title: Oil treatment process
IPC: C10G67/04
Filed: 1972-08-30
Abstract: 1426746 Refining solvent extracts BRITISH PETROLEUM CO Ltd 26 July 1973 [30 Aug 1972] 40198/72 Heading C5E A primary extract is obtained by contacting a mineral lubricating oil feedstock with a countercurrent of furfural in a first extraction column, the furfural is separated from the primary extract which is then extracted with a countercurrent of furfural in a second extraction zone using a lower furfural: oil ratio to produce a secondary extract and a pseudo-raffinate; the furfural is removed from the pseudo-raffinate which is then solvent dewaxed and catalytically hydrogenated. The first extraction can be carried out in a packed column, or a rotating disc contactor, with the furfural being introduced at a higher temperature than the oil. The dewaxing solvent used can be methylisobutylketone or a mixture of either methylethyl ketone and toluene or methylene dichloride and ethylene dichloride. The hydrogenation can be carried out using a catalyst comprising one or more oxides of Co, Mo and Ni on an alumina support at 330-400‹ C. and 70-120 atm. gauge.
Patent GB-1522678-A (GB)
Title: Method for coating the inside of a container with a layer of a material containing a settable resin
IPC: B05D7/22
Filed: 1975-10-02
Abstract: 1522678 Resin coated metal containers MALNINGSTEKNISKA INGENJORSBYRAN AB 2 Oct 1975 [3 Oct 1974] 40340/75 Heading B2E A method of coating or repairing the inside of a metal container, e.g. a cistern or tank comprises blasting the internal wall of the container, coating with a glass fibre reinforced polyester or epoxy resin layer at least 3mm thick, applying pressure to remove air bubbles and applying a surface layer of polyester or epoxy resin. These operations are carried out under controlled conditions of temperature and humidity.