baber/WOPTO huggingface dataset:
Patent GB-797566-A (GB)
Title: Improvements in or relating to electrical devices incorporating elements of ferromagnetic ceramic materials
IPC: C04B35/26
Filed: 1956-04-10
Abstract: 797,566. Magnetic compositions. WESTERN ELECTRIC CO., Inc. April 10, 1956 [April 11, 1955], No. 10898/56. Drawings to Specification. Class 38 (2). [Also in Group XL (b)] Magnetic ferrites suitable for use in waveguides (see Group XL (b)), by virtue of their high resistivity have their constituent metals in the proportions indicated by the following formulµ in which A indicates Mn or Mn and Co and M indicates Co and/or Mn; Ni 1À0-x  Zn x  Fe 1À99  to  1À60  A 0À005 to, 0À08  where x is between 0 and 0.45; Ni 1À0-ab  Zn b  Cua Fe 1À99  to  1À60  A 0À005  to  0À08  where a is between 0 and 0.40 and b is between 0 and 0.45; Ni 1À0-k  Cu k  Alj Fe 1À99  to  1.60  M 0.005  to  0.08  where j is between 0 and 1.0 and k is between 0 and 0.40; Mg 0.9.5   -f  Cu 0À05+f  Al g  Fe 1À99-g-q  M 0À006  to  0À08  where f is between 0 and 0.40, g is between 0 and 0.75 and q is between 0 and 0.50. Narrower ranges of parameters which give ferrites having the most suitable properties are specified. The starting materials in manufacture may be oxides or materials which convert to oxides during firing, e.g. hydroxides, oxalates and carbonates. They are mixed as a slurry with water, acetone, carbontetrachloride, or ethanol, dried, heated in an oxidizing atmosphere such as air or oxygen at 800-1100‹ C. for 5-15 hours, ball-milled in one of the previously mentioned liquids, dried and reheated as before. After repeating the ball-milling, a binder is added such as polyvinyl alcohol or hydrogenated castor oil when the vehicle is water, or paraffin, or chlorinated naphthalene when the vehicle is non-aqueous. The vehicle is then removed, and the powder granulated to size by passage through a sieve, optionally vacuum dried at 40-50‹ C., and compressed at 10,000 to 50,000 1b./sq. in. The binder is then removed by heating at over 400‹ C. for six hours and at 400‹ C. for a further six hours. The final firing is at 1050‹ to 1350‹ C. in an oxygen containing atmosphere such as oxygen, air or oxygen mixed with an inert gas such as nitrogen, helium or argon. The manufacture is described of ferrites with metals in the proportions indicated as follows: Ni 1À0  Fe 1À9  Mn 0À02 ; Ni 0À9  Cu 0À1  Fe 1À9  Mn 0À02  ; Ni 0À5  Cu 0À1  Zn 0À4  Fe 1À9  Mn 0À02 ; Ni 0À9  Cu 0À1  Al 0À2  Fe 1À7  Mn 0À04 ; Mg 0À9  Cu 0À1  Al 0À15  Fe 1À6  Mn 0À04
Patent GB-370655-A (GB)
Title: An improved game apparatus
IPC: A63F7/00
Filed: 1931-04-13
Abstract: 370,655. Games. NOLAN, T. A., 42, Harbour Street, and COLLINS, E., 236, Pitt Street, both in Sydney, Australia. April 13, 1931, No. 10901. Convention date, Jan. 13. [Class 132 (ii).] An apparatus for playing games of the kind in which biased balls or equivalent are projected to follow curved paths towards a target or scoring area comprises a flat board or platform having an upstanding ridge 3 around its periphery, one or more circles 7 defining the scoring area adjacent one end, and a wall 8 or obstacle disposed substantially midway of the length of the board and transversely thereof, for preventing the direct passage of the balls from the playing end to the scoring area. An opening 4 is provided in the upstanding ridge 3 to permit free movement of the player's arm. A mat 5 is provided for the players to kneel upon when projecting the bowls. In modifications, skittles coloured similarly to snooker balls are arranged on the target. The target may consist of a circle subdivided into coloured sectors.
Patent GB-433972-A (GB)
Title: Improvements in electric switches of the multi-way or selector type
IPC: H01H19/56
Filed: 1934-04-11
Abstract: 433,972. Mechanical switches without quick-action. HOBBS, E. W., 11, Mill Ridge, Edgware, Middlesex. April 11, 1934, No. 10941. [Class 38 (v)] A multiway switch comprises a hollow arm 12 loosely mounted on a spindle 10 and slidably carrying a spring pressed tappet rod 18 connected to a trough shaped contact arm 21 adapted in the position shown to bridge the circuit between a conducting ring 26 and a contact 30 on a spaced insulating ring 28. On rotating the spindle 10, a cam 15 raises the tappet 18 lifting the contact arm 21 to break the circuit. The side face 25 of the cam 15 then engages the arm 12 to rotate it to a new contacting position when release of the spindle 10 allows the spring 23 to move the tappet down and complete the new circuit.
Patent GB-459597-A (GB)
Title: Improvements in or relating to regulating transformers
IPC: H01F29/06
Filed: 1935-04-09
Abstract: 459,597. Transformers. NAAMLOOZE VENNOOTSCHAP MACHINERIEEN EN APPARATEN FABRIEKEN MEAF, 30, Croeselaan, Utrecht, Holland. April 9, 1935, No. 10986. Convention date, July 24, 1934. [A Specification was laid open to inspection under Sect. 91 of the Acts, Nov. 19, 1935.] [Class 38 (ii)] In a transformer regulated by a tapping switch, the core structure is arranged so that each section of the regulating winding between adjacent tappings has an independent magnetic circuit. Thus when a section of the winding is short-circuited by the switch in the course of regulation, the short-circuit current only links the corresponding magnetic circuit. The core structure may comprise a number of individual limbs a, b associated with common yokes m, Fig. 1, or a number of individual cores a, b, Fig. 3, each linked by one or more turns of the regulating winding 42. The limbs or cores are preferably arranged in a circle so that a rotatable contact arm 52 may be arranged to co-operate with a circular series of contacts 50. Fig. 4 shows an arrangement in which tappings are brought out to two contact banks arranged respectively inside and outside the cores. Saturated magnetic wedges i may be arranged as shown in Fig. 3 to reduce flux displacement. The cores may be arranged in two concentric circles, Fig. 5 (not shown). The regulating winding may be wound a number of times helically through the core structure, means being provided for guiding the movable contact in a helical path over a helically arranged series of fixed contacts. The transformer may be arranged as an autotransformer as shown, or a primary winding, the several sections of which are connected in series or in series-parallel may be associated with the regulating winding. Specification 446,455 is referred to.
Patent GB-886478-A (GB)
Title: Gibberellic acid derivatives
Inventor: CROSS BRIAN EDWARD
IPC: C07D307/93
Filed: 1959-04-01
Abstract: The invention comprises a - and b -tetrahydrogibberellic acid having the formulae <FORM:0886478/IV (b)/1> salts thereof, and a process for the preparation thereof by reduction of gibberellic acid.  Reduction may be effected with hydrazine, with hydrogen in the presence of a metal catalyst or by hydrogen transfer from cyclohexene or cyclohexadiene in the presence of palladium black in boiling tetrahydrofuran.  During the catalytic reduction a -dihydrogibberellic acid is formed simultaneously.  Salts are formed with ammonium alkali metal and alkaline earth metal bases.
Patent GB-386627-A (GB)
Title: Process for the demineralisation and revitalisation of mineral oils
IPC: C10G29/06
Filed: 1931-04-14
Abstract: Mineral oils are "demineralized and revitalized" by exposure to sunlight, artificial light, or ultra-violet rays, in presence of a catalyst, e.g. aluminium sulphate.  Purification by fractionation with steam, and treatment with sulphuric acid, caustic soda, and water may precede the exposure.  The Specification also describes the formation of inorganic matter, e.g. mineral oil or mineralized organisms, by exposing organic matter to light in presence of iodine and sodium chloride.
Patent GB-102033-A (GB)
Title: Improvement relating to Cardboard and like Boxes.
IPC: B65D5/66
Filed: 1916-08-04
Abstract: 102,033. Moore, W. H., and Fry & Sons, J. S. Aug. 4, 1916. Lids and covers.-In cardboard and like boxes having lids and bottoms extending beyond the sides, the lid a is provided with one or more lengths b of elastic, which may be engaged in a slot d in the bottom, a button or disk c taking under the bottom to hold the lid down.
Patent GB-1467236-A (GB)
Title: Winding apparatus
IPC: F02K9/24
Filed: 1973-03-07
Abstract: 1467236 Traversing filaments on to cores IMPERIAL METAL INDUSTRIES (KYNOCH) Ltd 19 Feb 1974 [7 March 1973] 11152/73 Heading B8G A filament supply head which is traversed along a mandrel by a pivoting arm is movably mounted on the arm and so controlled that it leads the arm during traversing and is moved from one side of the arm to the other at the traverse ends. Arm 17, Fig. 2, pivots to wind a bond of filaments on mandrel 12. The filaments, Fig. 4, are guided along the arm by rollers 24 to 27 to the supply head comprising roller 23 and comb 23a mounted for pivoting on shaft 21 on the arm. Arm 17 and the supply head are pivoted by the same rotary member so that, Fig. 1, when the arm (supporting rollers 25, 26) is moving leftwards from the centre of its traverse, the supply head is pivoting clockwise and upwards to be vertical at the left hand end of the arm traverse. Upon return of the arm the head continues to pivot clockwise until the arm reaches its traverse centre, when the head begins to pivot anti-clockwise and upwards until it is vertical at the right hand end of the arm traverse. The fulcrum of the arm may slide to modify the path of the supply head. The apparatus is used to wind a filament reinforced plastics or elastomeric material.
Patent GB-542327-A (GB)
Title: Improvements in electro magnetic switching arrangements for the automatic application and selection of voltage supplied from a current source
IPC: H02P7/00
Filed: 1940-07-02
Abstract: 542,327. Starting prime-movers ; charging bat. teries ; selecting sources on service. C.A.V., Ltd., and GLASER, W. H. July 2, 1940, No. 11160. [Class 38 (iv)] Current may be supplied from a battery a or other current source to any apparatus, such as the starting motor of a vehicle motor at appropriate voltage by electromagnetic selector switches r each responsive to a different voltage and adapted to be connected in parallel to the vehicle battery x for example by a plug connection f. Each selector switch r controls a corresponding electromagnetic switch m whereby a connection at the correct voltage is effected with the battery a. The selector switches are connected so that one only is effective at a time. If a starter motor is to be controlled through a switch 5 on the vehicle this switch may be shunted through an additional coupling to the battery a. The invention may be used for other purposes such as the connection of a battery charging apparatus to batteries of different voltages.
Patent GB-349228-A (GB)
Title: Improvements in coin trays
IPC: G07D9/00
Filed: 1930-04-08
Abstract: 349,228. Stands. BRANDT, E. J., Watertown, Wisconsin, U.S.A. April 8, 1930, No. 11163. [Class 52 (v).] Legs 25, which normally lie parallel to the sides of a coin tray 1 may be extended to support the tray as shown; spring latches 27 being provided on the legs to secure them in either position. Auxiliary legs 29, normally held parallel to the legs 25, may be adjusted to support the tray at a smaller inclination, securing latches 30 being provided.
Patent GB-217382-A (GB)
Title: Improvements in collapsible tubes, bottles or tins for containing liquids, semi-liquids, powder, tablets or the like
IPC: B65D47/26
Filed: 1923-04-25
Abstract: 217,382. Cousins, H. W. April 25, 1923. Stoppers with valves.-A collapsable tube, bottle, or tin a for containing liquids, semi-liquids, powders, tablets, &c. is provided with an externally threaded neck a' haying an aperture c in its side, a screw cap b to cover and uncover the aperture, means for preventing the cap from being removed from the neck and a washer d and seating d<1>, or a seating only, to make a tight joint between the cup and the container. The head orneck a<1> is closed at the top, or is solid throughout with passages c formed in it through which the material in the tube &c is ejected. The cap b is nipped in at b' to prevent removal. A small stud e may be formed on the container to indicate the exact position of the ejection hole.
Patent GB-795140-A (GB)
Title: Device for facilitating proportional mixing of liquids
IPC: B44D3/06
Filed: 1956-04-12
Abstract: 795,140. Indicating liquid levels. GENERAL & INDUSTRIAL PAINTS, Ltd., and WATTS, N. R. Feb. 20, 1957 [April 12. 1956], No. 11188/56. Class 123(1) Apparatus for predetermining the successive levels of specified quantities of liquids in a container, for example paint to be mixed, prior to pouring in the liquids, comprises a casing 1 made in halves held together by screws 2 and clamped to the rim of a container 12 by a screw 4, said casing housing an indicator in the form of a flat bar 5 which is set at the required levels by a manually rotatable and suitably graduated disc 8 driving a pinion 6 meshing with the indicator rack teeth 5b. The pinion 6 is biased against the disc 8 by a spring washer 9 to form a slip coupling, and a leaf spring 11 brakes the spontaneous movement of the indicator bar 5.
Patent GB-1076383-A (GB)
Title: Electromagnetic switch
IPC: H01H50/54
Filed: 1965-03-16
Abstract: 1,076,383. Electromagnetic relays. STOTZKONTAKT G.m.b.H. March 16, 1965 [March 26,1964], No.11191/65. Heading H2B. A contact carrier is pivotally mounted on the armature by a projection on one member engaging a slot in the other, the interengaging surfaces of the slot and projection being surfaces of cylinders of the same radius. As shown the contact carrier 4 has a projection 6, the cylindrical surface 8 of which is spring urged into engagement with the surface of a cylindrical slot 2, 3 in the armature 1. The slot is a larger part of a cylinder than the projection to allow the projection to be slid along the slot during assembly.
Patent GB-1422163-A (GB)
Title: Quadraphonic recording and reproduction
IPC: G11B3/00
Filed: 1973-03-07
Abstract: 1422163 Quadraphonics PIONEER ELECTRONIC CORP 7 March 1973 [9 March 1972] 11202/73 Heading H4R Four discrete quadraphonic signals are matrixed to form two pairs of composite signals containing at least three and at least two components respectively and are recorded directly and modulated on a carrier respectively, the components and their phase relationships being such that the directly recorded composite signals may be decoded to produce acceptable quadraphonics and that both types of composite signals may be decoded to recover the original four discrete signals. The record so produced is compatible with discrete and matrix quadraphonic reproducers. In a first arrangement one of a known pair of first composite signals e, f, Fig. 3, and one of a second pair of composite signals k, l, Fig. 5, frequency modulated on a 30 kHz carrier are recorded in pairs in respective side walls of a gramophone record groove. The reproduced signals are separated, filtered and demodulated to recover e, k and f, I which are dematrixed in the first part of Fig. 8 to produce L F  and R F  and further signals m, n. This part of the decoder is the same as that used to decode known signals of the form L F  + L B  and L F  - L B  which have been recorded directly and frequency modulated in one sidewall of a gramophone record. The second part of Fig. 8 is also a known decoder usually employed to derive rear signals from matrix encoded composites and here decodes the further signals m, n to produce L B  and R B . The directly recorded composites e, f alone may be fed direct to four outputs and through the second part of Fig. 8 to produce rear outputs providing acceptable quadraphonic results. Alternative direct composites t, u, Fig. 9, and carrier modulated composites v, w are dematrixed by the known first part of Fig. 8, to recover the original main components but with crosstalk components R F -R B  and L F -L B  which may be removed in a refined decoder (Fig. 11, not shown) by subtracting attenuated portions of v and w. As before, the direct composites t, u alone decode (Fig. 10, not shown) to produce acceptable results.
Patent GB-926974-A (GB)
Title: Improvements in and relating to plastics objects and their manufacture
IPC: B29C31/00
Filed: 1961-03-28
Abstract: Lenses or other objects are made by forming the core of the object by incompletely polymerizing a mixture of a major proportion of a monomer which exhibits breakage-resistance when completely polymerized and a minor proportion of a monomer which exhibits scratch-resistance when completely polymerized, bonding a coating of a monomer of the latter type to the core, and thereafter completely polymerizing the constituent materials of the coated core.  In a preferred embodiment the core is composed of methyl and allyl methacrylates and the coating monomer is allyl methacrylate.
Patent GB-1466026-A (GB)
Title: Method and apparatus for converting radiant solar energy into mechanical energy
IPC: F03G6/00
Filed: 1975-03-18
Abstract: 1466026 Utilizing solar heat SULZER BROS Ltd M POSNANSKY and W MARBACH 18 March 1975 [18 March 1974] 11267/75 Heading F4U Solar energy 21 is concentrated by a parabolic or semi-parabolic reflector on to at least a portion 20 of a chamber wall of a material transparent to the energy to isolate a heat transfer medium contained in a closed cycle of a heat engine to convert the solar into mechanical energy. As particularly described the heat engine comprises an eccentrically mounted rotor 15 in the chamber having outwardly spring- urged radial vanes 17 forming chambers 19 of changeable volume on rotation of the rotor. Liquid heat transfer medium is supplied through a channel 30 to the chamber 19 immediately preceding the lowermost for insulation and evaporation through the wall portion 20 and thereafter expands to rotate the rotor. The expanded vaporized medium escapes through a channel 23 into a cooling chamber 24 and condenses on a wall 29 for recirculation. Cooling fins 25 or a water cooling system may be provided. In a modification the liquid medium is replaced by a cool gas or gas mixture which is compressed by the rotor prior to conveyance to the portion 20, and in a further form the portion is replaced by a heating chamber disposed beneath the rotor chamber. The heat engine may alternatively comprise a rotary piston engine or a hot-air turbine.
Patent GB-715198-A (GB)
Title: Process for treating surfaces of articles produced by the use of cement, lime and/orlike binding medium
IPC: C04B41/66
Filed: 1951-05-15
Abstract: Dry cement-like articles containing CaO or Ca(OH)2 are treated with a dry gas consisting completely or partly of silicon tetrafluoride and substantially free from carbon dioxide. Specified gas mixture is that of SiF4 and HF.  The articles can be air dried and also given an extra drying before treatment.
Patent GB-794544-A (GB)
Title: A device for calibrating indicators of torsional oscillations during rotation
IPC: G01H1/10
Filed: 1956-04-13
Abstract: 794,544. Testing indicators of torsional vibrations; testing physical properties of materials. PROCHAZKA, M., and NAVRATIL, M. April 13, 1956, No. 11300/56. Classes 106 (2) and 106 (4). [Also in Groups XXVIII and XXXII] A testing machine primarily for calibrating indicators of torsional oscillations has the apparatus 13 under test secured in the centre of its torsionally oscillating system, which system comprises a member 2 carrying armatures 3 and additional masses 12, arranged in a fly-wheel 4 with which it is connected in a common axis of rotation by a torsionally elastic shaft 1 passing freely through an aperture in the hub 5 of the fly-wheel 4. As shown, the fly-wheel is mounted in external bearings 9, 9<SP>1</SP> so that the entire calibrator assembly may be rotated preferably by a regulatable electric motor connected to a flange 18 of the flywheel hub 5. The masses 12 on the member 2 can be changed and they can be adjusted radially to vary the natural frequency of vibration of the oscillating system. Two pairs of electromagnets 8 are secured to the fly-wheel 4 opposite the armatures 3. One coil of. each is supplied with direct current from a source 15 for premagnetization and the other coil is supplied from an output amplifier 16 of alternating current the frequency of which is continuously variable through an exciting sonic generator 17.. Thus the apparatus 13 may be tested over a wide frequency range at small torsional amplitudes or the machine can be operated in resonance to imitate conditions occurring, e.g. in internal-combustion engines. The calibrator may be used rotating at any speed or it may be used without rotation with a mirror 19 secured to the apparatus 13 reflecting light from a lamp 20 on to a scale member 21 indicating torsional amplitude. The machine may also be used as a source of torsional oscillations in testing: (1) absorbers of torsional oscillations of crank-shafts of internal-combustion engines; (2) injection pumps for Diesel engines; (3) fatigue caused by torsional oscilations under simultaneous rotation.
Patent GB-473967-A (GB)
Title: A method and device for cutting off cork or similar strips for tips and for placing these tips on a moving cigarette paper web
IPC: A24C5/58
Filed: 1936-04-21
Abstract: 473,967. Gearing for producing cyclic variations of velocity-ratio. SKODA WORKS, PLZEN. April 21, 1936, No. 11404. Convention date, April 29, 1935. [Class 80 (i)] [Also in Group VI] To impart cyclic variations to the speed of revolution of a roller 1, the roller is driven through one or more pairs of helical gears and an axial reciprocating movement is given to one of the gears of each pair. The axial reciprocation may be effected by a lever actuated by an eccentric or as shown by a fixed pin 10 engaging a cam groove 9 in a disc 5 keyed to the driving shaft 3 and integral with the helical gear 6.
Patent GB-831821-A (GB)
Title: Improved thermal diffusion process
IPC: B01D17/00
Filed: 1957-04-09
Abstract: A process for the separation of two or more fractions from a liquid mixture containing a solid and/or viscous liquid component comprises subjecting the mixture to conditions of thermal diffusion between non-horizontal walls in the presence of a liquid diluent which in relation to the solid or viscous component has either a higher "Soret coefficient" and a lower density at all temperatures prevailing between the walls or a lower "Soret coefficient" and a higher density at all temperatures prevailing between the walls, and, under said conditions, does not boil and is capable of creating a zone in which material containing the diluent in enhanced concentration tends to move in opposition to material containing the solid or viscous liquid component in enhanced concentration.  Suitable diluents for use in the process of the invention comprise halogenated hydrocarbons such as carbon tetrachloride, ethylene trichloride, chloroform, perchlorethylene, monochlorobenzene, dichlorobenzenes, bromobenzene; nitrogen heterocyclic compounds such as pyridine and quinoline and nitro-substituted hydrocarbons, for instance nitrobenzene.ALSO:A process for the separation of hard and soft asphalts from hydrofined Kuwait residue comprises subjecting the mixture to conditions of thermal diffusion between non-horizontal walls in the presence of chlorobenzene which in relation to the more solid or viscous component has either a higher "Soret coefficient" and a lower density at all temperatures prevailing between the walls or a lower "Soret coefficient" and a higher density at all temperatures prevailing between the walls, and, under said conditions does not boil and is capable of creating a zone in which material containing the diluent in enhanced concentration tends to move in opposition to material containing the more solid or viscous liquid component in enhanced concentration.