baber/WOPTO huggingface dataset:
Patent GB-616214-A (GB)
Title: Improvements relating to electrical condensers
IPC: H01G4/228
Filed: 1946-08-30
Abstract: 616,214. Condensers. LUCAS, Ltd., J., and WHITEHOUSE, H. E. Aug. 30, 1946, No. 26089. [Class 37] A paper and metal foil or like rolled condenser b is housed in a casing comprising a metal body part a, a metal cap d adapted to enclose and make contact with one end of the condenser, an annular rubber or other insulating bonding f moulded around and between adjacent parts of the cap and body part, and a second metal cap g soldered or brazed to the casing at its other end. The Provisional Specification also describes a container wherein the metal cap g is replaced by an integrally formed end piece, and a container having metal caps at each end secured by insulating bonding. Specifications 506,024 and 592,041, are referred to.
Patent GB-879020-A (GB)
Title: Improvements in and relating to refrigerators
IPC: F25D25/02
Filed: 1960-07-27
Abstract: 879,020. Refrigerators. GENERAL MOTORS CORPORATION. July 27, 1960 [Aug. 7 1959], No. 26106/60. Class 29 A refrigerator has a condenser 44 adjacent to the outer surface of one of the side walls 30, a thin outer wall 46 extending over and around and forming a duct for the condenser and extending to the outer face of the refrigerator door 22, an evaporator 52 adjacent to the inner surface of the side wall 30, and a forwardly removable shelf 40 extending between the evaporator 52 and the opposite side wall 28, the door 22 having hinges 26 located beyond its edges in alignment with the thin outer wall 46, the door having inner door shelves 38 extending when in the 90 degrees open position just short of the removable shelf 44 when extended forwardly from the interior of the cabinet. A fan 58 draws air from the top of the refrigerated compartment 42 and forces it downwardly over the evaporator 52 and out through one or more openings 60 at the bottom of a partition 56. A vertical illuminating light 72 is provided directly in front of the evaporator 52. The condenser is ventilated by openings formed in the corrugated front 50 of the outer wall 46.
Patent GB-222330-A (GB)
Title: Improvements in electrical resistances
IPC: H01C3/18
Filed: 1923-10-19
Abstract: 222,330. North, N. E. Oct. 19, 1923. Wire resistances, cored and embedded; resistance grids.-Terminal rods or tubes 4 are passed through perforations in a flattened former 2 on which is wound a resistance wire 1, the end turns 3 of which are spaced apart to allow the rods or tubes 4 to pass between them. Washers or bosses 5 are secured upon the tubes or rods 4, for example' by screwing as shown or by spinning or riveting the ends of the tubes or rods 4 over the washers 5 whilst these are tightly pressed together to make good contact with the wire. The resistance unit is then coated' with enamel, cement, a phenolic condensation product, a composition consisting of cement, asbestos, and water-glass, or other fireproof insulating-material, and may have a finishing coat of hard drying or baking material such as enamel. The insulating coating is then removed from the outer faces of the bosses 5 bv grinding &c. The former 2 may be a cylindrical asbestos board or other insulating tube flattened alter winding, or a flat strip of fireclay &c. with or without a reinforcing strip of metal. The units may be shaped as grids and several may be clamped together, alternate bosses being insulated, and the other bosses forming the connection from grid to grid. The bosses may form the contacts over which a brush operates. Intermediate bosses may be provided and may be connected electrically to the resistance to form intermediate terminals, or may merely serve as additional supports, being then unconnected to the resistance.
Patent GB-536129-A (GB)
Title: Improvements in or relating to tapping and like machine tools
IPC: B23G1/18
Filed: 1939-09-19
Abstract: 536,129. Valves. GOLDBERG, H. Sept. 19, 1939, No. 26146. [Class 135] [Also in Group XXII] A pedal-operated valve for controlling the supply of compressed air to a tapping &c. machine has a plunger 155 which controls the flow of air from an inlet 53 to an outlet 51 and is displaced downwards by a pedal 152 against a spring 156.
Patent GB-1117002-A (GB)
Title: Glass compositions containing antimony, sulphur and iodine
IPC: H01B3/08
Filed: 1965-06-21
Abstract: <PICT:1117002/C1/1> Glasses which have semi-conductive properties and which may be reddish in colour or opaque are formed from antimony, sulphur and iodine in the proportions covered by the shaded areas of the ternary diagram.  Provided 15 atomic per cent antimony and 24 atomic per cent sulphur are present antimony may be replaced by 15% indium, 10% silica, 20% germanium, 15% tin, 10% lead, 8% phosphorus, 24% arsenic and/or 2% bismuth and sulphur may be replaced by 12% selenium (or 24% selenium if arsenic is present) and/or 12% tellurium.  Thin wafers of the glasses have an initially very high resistance and can be switched to a low resistance state by an electric pulse of suitable voltage and duration. They can then be switched to a high resistance state (lower than the initial resistance) by a pulse of lower voltage. The glasses may be made by melting the component elements or compounds formed from these elements in a closed or open tube and if necessary chilling rapidly to preserve the vitreous state. Coatings on metal, e.g. aluminium may be obtained by dipping in the molten glass.  They also have the ability to wet ceramic materials.  Beads may be made by dropping or blowing cullet through a high temperature zone in an atmosphere of nitrogen or directly from molten glass.  Fibres may be made by jet-blowing a stream of molten glass and filaments by rapid cooling of glass drawn through a die.  Thin plates and flakes and small jewelling "gems" can be made by casting a thin layer on a cool steel surface.  A number of composition examples are given.
Patent GB-977484-A (GB)
Title: Thermally stable esters of phosphorus acids
Inventor: MILLWARD BRIAN BEARD
IPC: C07F9/12
Filed: 1962-07-09
Abstract: The invention comprises aryloxyaryl esters of phosphorus acids in which each acidic hydrogen atom of the acid is replaced by an esterifying radical selected from aryloxy aryl and aryl radicals, there being present at least one aryloxyaryl radical. Specified acids are phosphorous, orthophosphoric, pyrophosphoric, thiophosphoric and aliphatic- or aromatic-phosphonic acids. All the esterifying radicals may be aryloxyaryl, or aromatic groups may be present. The compounds are prepared by reacting a suitable phosphorus halide with an aryloxyphenol. The phosphorus halide may be the oxyhalide, a halide of formula RPOX2 or R2POX where R is aromatic and X is halogen, or phosphorus thiohalide, which may be formed in situ. If an esterifying group other than aryloxyaryl is to be present, the aryloxyphenol is employed in admixture with a suitable phenol. The process is suitably carried out in the presence of a hydrohalide acceptor, such as ammonia or an organic base, especially pyridine. Reaction is preferably performed in an inert solvent, such as a hydrocarbon or halogenated hydrocarbon, especially benzene and its homologues. A reaction temperature from room temperature to about 150 DEG C. is suitable, preferably from 50 DEG C. to 150 DEG C. The examples describe the preparation of: tri(3-phenoxy-phenyl) phosphite, tri(3-phenoxyphenyl phosphate) and tri(3-phenoxy phenyl) thiophosphate, together with a technique for determining the thermal stability of the product. The products may be used as functional fluids in heat exchanging systems, as hydraulic fluids, or as lubricants (see Divisions C4 and C5). They are also stated to be useful as plasticizers, antioxidants, and fire-proofing agents.ALSO:Functional fluid compositions, that may be used as heat transfer media lubricants, or hydraulic fluids, comprise aryloxyaryl esters of phosphorus acids in which each acidic hydrogen is replaced by an esterifying radical selected from aryl or aryloxyaryl radicals, at least one of the esterifying groups being aryl oxy aryl (see Division C2) with other fluids of sufficient thermal stability. Those specified are: diphenyl, diphenyl ether, and tetraphenyl ortho-silicate. Specified phosphorus esters are: tri-(3 - phenoxy phenyl) - phosphite, phosphate and thiophosphate, tri (4-methyl 3-phenoxyphenyl) phosphite, tri (4-phenoxyphenyl) phosphate and tri (2-chloro-3-phenoxyphenyl) thiophosphate.
Patent GB-338622-A (GB)
Title: Improvements in mechanically actuated mascots for cycles, motors and like wheeled vehicles
IPC: A63H13/00
Filed: 1929-08-29
Abstract: 338,622. Gold, A. E. Aug. 29, 1929. Mechanical toys.-In a mascot for cycles and motor and like vehicles, of the type having parts actuated from a movable part of the vehicle, the wings or other movable parts are operably connected at their inner ends to a rod that passes through the body from the underside and is actuated from the road wheels or other moving part of the vehicle. As shown, the, mascot is in the form of a bird 1 attached to a vehicle by a clip 16. The wings 4 of the bird pass through slots in the body and are hinged at their inner ends to a pin 5 that is operably connected through a vertically guided rod 6, transverse slot 9, eccentric pin 10, worm wheel 11 and worm 12 to a pair of driving wheels 14. These driving wheels 14 are pressed into engagement with a tyre of the vehicle by a spring 19 acting on a plunger 17 projecting from the mounting of the bird. In a modification, the wings are pivoted to the body and each connected to the eccentric pin 10 by a separate link, or the inner ends of the wings may be slotted to receive the upper end of a single link. The bird may be replaced by a human figure or other object.
Patent GB-335703-A (GB)
Title: Production of sodium fluoride by dry method
IPC: C01D3/02
Filed: 1929-08-29
Abstract: 335,703. Britzke, E. V., Brempell, W. I., and Jakubowitz, M. E. Aug. 29, 1929. Sodium fluoride, neutral or acid, or a mixture thereof, is obtained by the action of gaseous hydrofluoric acid on solid cal- -cined soda at an elevated temperature, say, at 70‹ C. Acid sodium fluoride formed may be further neutralized with calcined soda. In an apparatus for carrying out the process, calcined soda is fed into a hopper 4, conveyed to a heat-insulated reaction tube 3, and is moved therealong in counter-current to gaseous hydrofluoric acid introduced through pipe 1. Gases and steam evolved escape through pipe 13, and sodium fluoride is discharged into receiver 8.
Patent GB-1237654-A (GB)
Title: Improvements in or relating to the production of fracture-resistant spinel crystals
IPC: C30B29/26
Filed: 1969-05-23
Abstract: 1,237,654. Spinels. SIEMENS A.G. 23 May, 1969 [28 May, 1968], No. 26361/69. Heading C1A. A crystal of magnesium-aluminium spinel is hardened and made fracture-resistant by heating it above 600‹ C. but below the solubility temperature (as defined) corresponding to the crystal composition, for a time selected to produce maximum hardening. The heating time is reduced with increasing temperature (and vice versa) for a given crystal composition and is reduced with increasing alumina content for a given temperature. Heating may be carried out immediately after formation of the crystal by means of a Verneuil apparatus provided with a re-heat zone, or the formed crystal may be electrolytically polished or cut into plates and coated, before the heat-treatment. Heating may be effected in vacuo or in a protective gas atmosphere e.g. in a tube or chamber furnace or in a continuously operated furnace. The heated crystal is preferably cooled within 10 minutes. In examples, a spinel with Al 2 O3: MgO ratio of 2.5 is heated at 850‹ C., 1050‹ C. and 1250‹ C. for 480, 90 and 3 minutes respectively, and a spinel with Al 2 O 3 :MgO ratio 3À3 is heated at 1050‹ C. for 10 minutes. The hardened crystals form improved substrates for epitaxial coating of semi-conductor material.
Patent GB-172151-A (GB)
Title: Improvements in target appliances
IPC: F41J13/00
Filed: 1920-09-14
Abstract: 172,151. McKenzie, J. B. Sept. 14, 1920. Targets.-A bullet catcher comprises a flared metal shell 10 supported at the forward end by a pivoted spike 28 and at the rear end by wheels 24 to which the shell is connected by a screw for adjusting the height. This adjustment may be operated by means of a rope 35 and pulley from the firing point. The forward end of the shell is provided with a projecting part 36 having baffles 38 which prevent ricochetting of any bullets which glance off the shell and such bullets drop through slits 37.
Patent GB-655408-A (GB)
Title: Improvements in or relating to supersonic testing apparatus
IPC: G01N29/06
Filed: 1947-09-30
Abstract: 655,408. Supersonic inspection devices. SPERRY PRODUCTS, Inc. Sept. 30, 1947, No. 26379. Convention date, Oct. 4, 1946. [Class 118 (ii)] [Also in Group XL (a)] In a device for the supersonic inspection of objects in which supersonic pulses are generated by a main pulse generator and transmitted into the object by a piezoelectric crystal which also receives reflections of the pulses coming out of the object, the crystal is connected to a control grid of a cathode-ray tube having a deflecting means which normally directs the beam into engagement with said grid, and a switch pulse generator synchronized with the main pulse generator generates a switch pulse when the main pulse is generated, the switch pulse being applied to the deflecting means to deflect the beam out of engagement with the control grid for the duration of the switch pulse. In a testing system as disclosed in Specification 641,095, a pulse generator 40 applies a wave train or pulse to a quartz crystal 41 in contact with the upper surface 42 of an object 43 to be tested. Wave trains reflected by the opposite surface 44 of the material, or by a defect 45 are received by crystal 41 and impressed on a signal grid 30 of a cathode-ray tube 10 (see Group XL (a)), causing a varying output from plate 35 which is amplified by an amplifier 11 and then impressed on the vertical plates 50 of an oscilloscope 51 to deflect vertically a horizontal sweep impressed across horizontal plates 52 from a sweep circuit 53. To prevent overloading of the amplifier by the relatively large initial pulse from generator 40, a switching pulse generator 60<SP>1</SP> is provided, which, together with generator 40, is triggered from a synchronizer 70, which in turn is triggered from a synchronizing frequency, for example, a 60-cycle A.C. source. Generator 60<SP>1</SP> may take the form of a flip-flop or single pulse multivibrator circuit 61 which generates a square wave whose duration may be controlled by a variable condenser 62 and variable resistor 63, so that when applied through an amplifier 66 to deflection plates 25, it switches the beam 21 out of connection with grid 30 for the duration of the supersonic pulse. A delay circuit 75 of any known type may be interposed between synchronizer 70 and generator 40 to compensate for the time of movement of the beam 21 from its lower to upper position.
Patent GB-1261265-A (GB)
Title: Frequency modulation of a solid state oscillator
IPC: H03B5/12
Filed: 1969-05-23
Abstract: 1,261,265. Semi-conductor oscillators; frequency modulation. RCA CORPORATION. 23 May, 1969 [29 May, 1968], No. 26395/69. Headings H3T and H3R. [Also in Divisions G1 and H1] A three terminal oscillator comprises a body 10 of semi-conductor material capable of exhibiting oscillation when subjected to an electric field exceeding a threshold value, such as a Gunn effect device, the body having opposed surfaces and including a P-N junction 16 or Schottky barrier region and a kerf 18 in one of the surfaces and means 47 for impinging a variable intensity light beam on the bottom of the kerf. The body 10 may be of GaAs having a zinc doped P portion 12 and a silicon or tin doped N portion 14. The kerf 18 may be made by sawing, or etching. As shown the circuit will oscillate depending on the width of the kerf 18 and on the capacitance provided by the reverse biased P-N junction 16. The reactances 30, 38 and 42 may be lumped or distributed. The frequency of the oscillator may be adjusted by varying voltage sources 28, 36 which varies the capacitances of the junction 16. The light beam 46 which is modulated in intensity changes the junction depletion layer capacitance so that the output frequency of the oscillator is frequency modulated to correspond to the modulated light 46. The light 46 may be the light reflected from copy which is to be transmitted in a facsimile manner or coherent or noncoherent source such as a laser 47. The device 10 may be replaced by a GaAs body (10<SP>1</SP>, Fig. 3, not shown), having electrode 20 (20<SP>1</SP>) of nickel so as to form a Schottky barrier at the interface between the electrode (20<SP>1</SP>) and the body (10<SP>1</SP>). Other semiconductor materials such as InP, GaAs x P 1-x , CdTe or ZnSe may be used. Frequency regulator (Fig. 4).-The output of the solid state oscillator 10 may be frequency modulated by a voice responsive microphone 48. An error voltage from a frequency comparator 56 indicates the difference between the frequency of reference oscillator 58 and that across load 44. The light produced from source 62 under control of 60 and 56 is varied in intensity so as to keep the average frequency across load 44 constant while permitting frequency modulation by the microphone 48. The time constant of the frequency regulator elements 52, 56, 58, 60 and 62 is so long that it will only correct for slow changes in frequency and not those caused by microphone 48.
Patent GB-656860-A (GB)
Title: Improvements in or relating to the manufacture of butyraldehyde
IPC: C07C45/62
Filed: 1948-10-11
Abstract: A process for the manufacture of butyraldehyde comprises the hydrogenation of crotonaldehyde at an elevated temperature in the presence of a catalyst capable of hydrogenating crotonaldehyde to butanol, wherein crotonaldehyde vapours are passed over the catalyst in admixture with butanol vapours and hydrogen, the butanol being subsequently recovered from the reaction products and recycled to the reaction zone.  The preferred catalyst is copper, supported on kieselguhr, produced by reduction in situ with hydrogen of copper hydroxide precipitated by alkali on kieselguhr.  The crotonaldehyde may be anhydrous or wet, e.g. the product from aldol crotonization. The crude hydrogenation product may be fractionated, butanol containing a small amount of crotonaldehyde being returned to the reaction.  In the examples, crotonaldehyde and butanol vapours are passed with hydrogen over a heated copper on kieselguhr catalyst at substantially atmospheric pressure and the products fractionated. Butyraldehyde, small amounts of butanol and heavy products, mostly butyl butyrate, are produced and the recovered butanol is recycled. The catalyst is obtained by hot precipitation of copper hydroxide from a solution of copper nitrate, in which is suspended keiselguhr, with caustic soda after which the product is filtered, washed and pelleted and reduced with hydrogen in the catalyst tube.  For comparison, two runs in the absence of butanol are described, larger amounts of butanol being produced.
Patent GB-756367-A (GB)
Title: Improvements in and relating to latching devices
Inventor: HARVEY JOHN ALISTAIR FRANKLYN
IPC: H01H71/50
Filed: 1953-09-25
Abstract: 756,367. Locking devices. ENGLISH ELECTRIC CO., Ltd. Sept. 24, 1954, [Sept. 25, 1953], No. 26470/53. 'Class 80(3) [Also in Group XXXVII] To prevent the rebound of a moving member, e.g. the moving contact carrying member 13 of a circuit-breaker, on the impact of stops 25, 26 when the member 13 reaches the limit of its movement, a movable latch 28 is arranged to enter into engagement with a co-operating locking member 27, biasing means causing their disengagement after an interval at least sufficient for the member 13 to come to rest. In Fig. 1, when the catch 15 is disengaged from the detent 16, the member 13 is opened by the spring 24. Just before the impact of the stops 25, 26, the pin 27 strikes a face 28a of the latch 28 causing the latch to turn about its pivot 29 so bringing a locking face 28b behind the pin 27 to prevent any rebound of the member 13 other than that due to the small clearance between the parts 27, 28b. When the member 13 is at rest, the latch 28 is disengaged by. gravity. A pin 30 passing through a slot in the latch limits the angular movements of the latch. In an alternative arrangement, Fig. 5, the latch 32 is pivotally mounted on the member 13 and is caused to engage with the fixed pin 34 by its own inertia when the member 13'is arrested at the end of its travel. In this arrangement, a spring 35 disengages the latch when the member 13 is at rest and the stops 25 and 26 may be resiliently mounted to increase the duration of the impact to ensure correct engagement of the latch
Patent GB-265437-A (GB)
Abstract: 265,437. Standard Telephones & Cables, Ltd., (Western Electric Co" Inc.). May 19, 1926. Guards. - In machinery capable of setting up noisy vibrations on the surfaces of adjacent parts, such parts are reinforced with ribs whereby they radiate energy more readily in a less audible range of frequency. The invention is described as applied to a vehicle gear casing 10. The sound eliminating ribs are shown at 11. They may be arranged on the outside of the casing so as to serve also as heat-radiating fins.
Patent GB-355960-A (GB)
Title: Improvements in and relating to machines for drying milk and the like
IPC: A23C1/04
Filed: 1930-09-05
Abstract: In apparatus for drying milk by spraying it into a current of hot air, e.g. as described in Specification 198,496, [Class 32, Distilling &c.], the hot air is supplied to an outer chamber 5 from which it passes through perforated diaphragms 13, 23, 33, 43 into annular chambers 11, 21, 31, 41, surrounding the spraying nozzles 1 .. 4, and thence through a second series of diaphragms 12, 22, 32, 42 into the <PICT:0355960/III/1> drying chamber 6.  The open area of the diaphragms may be predetermined, or varied by suitably arranged shutters to equalize the supply of air to each nozzle.
Patent GB-265677-A (GB)
Abstract: 265,677. Bourgoin, L. Nov. 9, 1925, Samples furnished. Condensation products from acetylene and fatty materials.-Plastic and resinous materials usable for electric insulation, artificial rubber, &c., are obtained by treating animal or vegetable fatty substances or a mixture of fatty acids and glycerine, with steam under pressure in the presence of calcium carbide, so that the acetylene generated will combine with the fatty material. The substances are treated in a melted state, or, when volatile or decomposed below 100‹ C., are mixed with a suitable carrier. The steam may be obtained by adding a salt which gives up its water of crystallization at the required temperature. The hydrated lime also produced is readily removable from the product. The consistency of the product varies according to the amount of carbide used. The products are soluble in carbon tetrachloride, carbon disulphide, or sulphuric ether.