baber/WOPTO huggingface dataset:
Patent GB-587063-A (GB)
Title: Improvements in or relating to the manufacture of polymerizable esters
IPC: C08F2/00
Filed: 1945-01-02
Abstract: Compounds having the formula <FORM:0587063/IV/1> wherein n represents a whole number and R represents an allylic radical (e.g. allyl, methallyl) are obtained by esterifying o-benzoylbenzoic acid by any known method and, if necessary, subsequently, polymerizing the ester by heating alternatively the ester may be interpolymerized by treatment with one or more compounds which contain an olefinic linkage of the type R1CH=CR2R3, wherein R1 represents H, alkyl, acyl or carbalkoxy; R2 represents H, cyano, acyl, alkyl, or carbalkoxy; or, wherein R1 and R2 together represent the residue -CO-O-CO-; and R3 represents H or alkyl.  Specified esterification catalysts are: p-toluenesulphonic acid and sodium ethylate.  Specified interpolymerizing reagents are: vinyl acetate maleic anhydride, esters of acrylic acids, fumaric esters, acrylonitrile, methacrylonitrile, methyl isopropenyl ketone.  Specified polymerization accelerators are: acetyl peroxide, benzoyl peroxide, lauroyl peroxide, succinyl peroxide, tert.-butyl hydrogen peroxide. In examples: (1) o-benzoyl-benzoic acid is heated with allyl alcohol, benzene and p-toluene sulphonic acid to form allyl o-benzoyl-benzoate; (2) to (8) allyl o-benzoyl benzoate is heated with: (2) 65 per cent aqueous tertiary-butyl hydrogen peroxide at 120 DEG  C. to form a brown gum which after repeated precipitations from acetone becomes a yellow powder; (3) benzoyl peroxide at 75 DEG  C. and the reaction product is poured into gasoline to obtain a soft white polymer; (4) vinyl acetate and 65 per cent aqueous butyl hydroperoxide at 120 DEG  C. to form a green liquid which is purified by repeatedly dissolving it in acetone and precipitating it with ligroin to obtain a yellow powder; (5) maleic anhydride and 65 per cent aqueous tertiary-butyl hydrogen peroxide at 120 DEG  C. to form a green gum which is purified by repeatedly dissolving it in acetone, precipitating it with methanol and washing it with ligroin to obtain a white powder; (6) acrylonitrile and 65 per cent aqueous tert.-butyl hydrogen peroxide at 120 DEG  C. to obtain a yellow powder; (7) methyl isopropenyl ketone and benzoyl peroxide at 75 DEG  C. to obtain a brown powder; (8) methyl methacrylate and tertiary butyl hydroperoxide at 120 DEG  C. to obtain a white solid; (9) methyl o-benzoyl benzoate is heated with methallyl alcohol in the presence of 5 per cent sodium ethylate in ethanol and tert.-butyl catechol, to form methallyl o-benzoyl benzoate which is polymerized and copolymerized as in the previous examples. The allylic o-benzoylbenzoates may be used as plasticisers for polymethyl methacrylate and polystyrene.
Patent GB-579590-A (GB)
Title: Improvements in and relating to rotatable valves for internal combustion engines
IPC: F01L7/08
Filed: 1945-01-03
Abstract: 579,590. Rotary valves. BRIGGS MANUFACTURING CO. Jan. 3, 1945, No. 267. Convention date, Jan. 7, 1944. [Classes 7 (ii) and 7 (vi)] [Also in Group XXIX] In: an engine having a rotatable valve in a cylinder head in which the valve and head have different coefficients of thermal expansion a metal ring or annular member controls the rate of expansion of the head relative to an adjacent portion of the valve. A frusto-conical rotatable valve 41' made of cast iron or ferrous metal is disposed in an aluminium head 27 having an annular boss 31, around its lower end, provided with a recess 32 receiving a steel ring 33. The ring is exposed to the cooling fluid in a chamber 29 which communicates with the cylinder jacket 25 and has extensions 29a, 29b around and between the inner ends of the inlet and exhaust passages 46, 45. The head is secured by bolts 38 traversing ribs 36, 37 and the ring 33 is notched at 33a to provide clearance for a gasket 34. The combustion chamber 42 is formed in the valve 41 and cooled by metallic sodium in a chamber 48. An annular relief 70 extending for the height of the valve part 43 is formed in the valve or in the head. The valve is held against its seating by a spring 52 engaging a steel coupling disk 53 which drives the valve through teeth 54 and is itself rotated from a gear 58 through a ring 57.
Patent GB-561608-A (GB)
Title: Shrunk connection, particularly for tubular members
IPC: F16L15/00
Filed: 1943-01-08
Abstract: 561,608. Screw sockets. CAMINEZ, H. Jan. 8, 1943, No. 388. [Class 89 (i)] [Also in Groups XXII, XXVII and XXVIII] In a screw connection between two parts each of which is provided with a helical groove to receive a hard and ductile wire coil insert, the outer part has lands, between the turns of the groove, of an inner diameter D<5> slightly smaller than the original diameter D<2> of the corresponding lands of the inner member. As applied to assembling an aluminium head 11 upon a steel cylinder barrel 10 the head is heated to about 600‹ F. while the barrel is chilled by kerosene and dry ice. The wire coil 29 is wound to a diameter that is about 80 per cent of its diameter when in place, and is screwed on to the barrel 10 and its end anchored by soldering the trailing convolutions 35 that engage grooves in the barrel slightly deeper than the rest of the grooves to facilitate the starting of the assembly. When the parts regain their normal temperatures the lands are tightly in engagement at 27, Fig. 7, and the segmental portion 29 of the wire of the helix originally of less radius than that of the groove becomes deformed to fill the groove and the sixty-degree V-portion 22 is wedged tightly into the corresponding groove in the head, clearance being provided at the root of the thread. In a modification the wire is asymmetrical the groove in the head corresponding in form to a buttress thread. The wire helix may be made from phosphor bronze. Specifications 497,309, 536,959, and 551,960 [Group XXVII] are referred to.
Patent GB-554631-A (GB)
Title: Improvements in or relating to pressing irons
IPC: D06F75/12
Filed: 1942-01-12
Abstract: 554,631. Irons, hand. FARMER, W. H., and MARSDEN. H. W. Jan. 12, 1942, No. 414. [Class 138 (ii)] In hand irons in which steam for conditioning the work is generated in the body of the iron a water container B on the iron is fed by a flexible pipe A from a separate reservoir and has a float E controlling the water inlet valve so that a constant free head of water is maintained therein and water is fed therefrom through a control valve D to the sole of the iron.
Patent GB-770968-A (GB)
Title: Refrigerating apparatus
IPC: F25D11/02
Filed: 1955-01-07
Abstract: 770,968. Refrigerating. GENERAL ELECTRIC CO Jan. 7, 1955 [Jan. 7, 1954], No. 577/55. Class 29 In a refrigerator having low and high temperature compartments 5, 17, cooled respectively by evaporators 9, 21 of a compression system, the compressor motor being controlled by the temperature in the low temperature compartment 5, evaporator 21 congeals a liquid in a casing 26 during operation of the system and the casing 26 cools compartment 17 when the system is inactive, means also being provided to vary the heat transfer rate between the high temperature compartment and the casing 26 and/or to vary the supply of refrigerant to the evaporator 21. The cabinet may be constructed as described in Specification 726,041, with evaporator 21 and casing 26 extending through an aperture 25 in the inner door 16. Evaporators 21, 9 are connected in series in that order. To prevent excessive, cooling of the compartment 17, e.g. if the casing 26 to be cooled below the freezing point of the liquid, vanes 31, Fig. 3, may be closed by a thermal element 33 in the compartment, the shutters preventing an flow between the compartment and the casing 26. Alternatively, Fig. 4, or in addition, a valve 39 may be opened by a thermal element 40 upon excessive cooling of compartment 17 to short circuit the evaporator 21. In modifications evaporators 9, 21 may operate at different pressures or evaporator 21 may be part of a secondary system the condenser of which is cooled by part of evaporator 9.
Patent GB-788969-A (GB)
Title: Preparation of saturated carbinols by the hydrogenation and hydrogenolysis of acetylenic glycols
IPC: C07C27/04
Filed: 1956-01-09
Abstract: The invention comprises the new alcohol 4,7-dimethyldecan-4-ol It and other similar alcohols may be prepared by subjecting a glycol of formula <FORM:0788969/IV (b)/1> where R and R1 are alkyl radicals, to the action of hydrogen in the presence of a palladium catalyst in a reaction medium consisting of isopropyl alcohol, n-butyl alcohol, sec.-butyl alcohol or tert.-butyl alcohol or a mixture of two or more of these alcohols.  Preferably the palladium is supported on an inert adsorbent such as activated carbon, charcoal, pumice, alumina, silica gel, kieselguhr, fuller's earth, bentonite, kaolin or barium sulphate.  The reaction is preferably carried out at a pressure between 3 and 5 atmospheres and a temperature in the range 65-85 DEG C.  It is desirable to flush the reaction vessel with an inert gas, such as nitrogen, before starting the process. In the examples: (a) 3,6-dimethyl-4-octyne-3,6-diol and sec.-butyl alcohol are treated with hydrogen in the presence of a palladium on charcoal catalyst to give 3,6-dimethyl-octane-3,6-diol; (b) 2,5-dimethyl-3-hexyne-2,5-diol dissolved in isopropyl alcohol is treated with hydrogen in the presence of palladium on charcoal to give 2,5-dimethylhexan-2-ol with some 2,5-dimethylhexane-2,5-diol; and (c) 4,7-dimethyl-5-decyne-4,7-diol is dissolved in tert.-butyl alcohol and treated with hydrogen in the presence of a palladium on charcoal catalyst to give 4,7-dimethyldecan-4-ol with some 4,7-dimethyldecane-4,7-diol and 4,7-dimethyldecane.ALSO:Catalyst regeneration.-The catalyst used for the hydrogenation and hydrogenolysis of aliphatic ditertiary acetylenic glycols to give the corresponding saturated alcohols and consisting of palladium which may be supported on a chemically inert adsorbent carrier (e.g. charcoal) is regenerated by digesting it with a saturated alcohol solvent at the boiling-point of the solvent. The preferred alcohols are methanol and tertiary butanol.  Soap compositions.-4,7-Dimethyldecan-4-ol, may be incorporated in soaps (powdered, flaked or bar) or shampoos to give a pleasant odour.
Patent GB-831305-A (GB)
Title: Improvements relating to the refining of heavy metals by zone melting
Inventor: ALLIBONE THOMAS EDWARD
IPC: C22B60/04
Filed: 1955-01-11
Abstract: <PICT:0831305/III/1> Heavy metals, particularly metals which have undergone fission reaction such as uranium, thorium or plutonium, are treated to remove lighter constituents by applying heat to melt a horizontally extending zone and moving the molten zone upwardly through the metal to the top region.  Purification may be assisted by adding a metal or an intermetallic compound capable of dissolving the impurities to the lower portion of the metal undergoing treatment, the added metal being insoluble in the treated metal.  Thus cerium and/or lanthanum may be added to remove fission products and magnesium may be used to remove plutonium where plutonium is a reaction product.  Alternatively silver may be used to perform both functions.  In the apparatus shown, a rod 1 of thorium or uranium in a cylindrical container 3 is supported at top and bottom by supports 2 and 5 respectively. The rod is moved downwardly through induction heater 9 by servo mechanisms 4 and 7 to move a molten zone 11 containing an absorbent metal upwardly along the rod.  Cooling means 10 cools that portion of the rod leaving the heating zone, and, if desired, that portion immediately above the heater.
Patent GB-209761-A (GB)
Title: Improvements in or relating to electrodynamic telephonic transmitter or receiver
IPC: H04R9/06
Filed: 1924-01-11
Abstract: 209,761. Siemens & Halske Akt.-Ges. Jan. 12, 1923, [Convention date]. Magnetic instruments; loud-speakers.-In an electrodynamic telephone receiver or transmitter in which the diaphragm itself forms the conductor through which the line currents pass, the diaphragm, consisting of a strip of metal foil, is given a preliminary resiliency in a longitudinal direction, either by corrugating it transversely and stretching it when fixed, or by a spring mounting, or both. The mass of the diaphragm is preferably made equal to the mass of air which it causes to vibrate. The diaphragm a, Fig. 3, preferably a strip of aluminium foil, is mounted between an insulating part b and a conducting part c and clamped by a screw d. It may be stretched over spring blades x, Fig. 5, which are adjustable by screws y. The part of the diaphragm which is clamped may be coated electrolytically with copper; the coating being thicker within the terminal clamp. A filling of lacquer or other substance, which will be resilient when dry may be run into the angles between the diaphragm and the clamps. Two or more diaphragms may be used in series or parallel or series-parallel, and the wires leading to them are arranged in loops as in Fig. 4 so that, when an electromagnet is used, the induced currents in the loop due to variations in the supply current are neutralized. The diaphragm is exposed to the air on one side only, there being a closed adjustable chamber, preferably lined with felt on the other side. The Specification as open to inspection under Sect. 91 (3) (a) also states that, to ensure a uniform action on the diaphragm to neutralize the skin effect, the magnetic field is arranged so that its action is stronger in the middle than at the edge. This subject-matter does not appear in the Specification as accepted.
Patent GB-177619-A (GB)
Title: Improvements in a clutch
IPC: F16D43/18
Filed: 1921-01-08
Abstract: 177,619. Rogers, F. H., (Albaugh-Dover Co.). Jan. 8, 1921. Clutches, friction.-In a friction clutch having clutch members 3, 6 mounted on aligned and separated shafts 1, 2, the members are held together and an alignment by a detachable pin 12 engaging the bore of each clutch member. The pin has a head 13 fitting against a shoulder 14 in the bore of the member 6 and is releasably secured in the bore of the member 3 by a set-screw 15. As shown, the shaft 1 drives the shaft 2 through slidable blocks 11 arranged in radial slots in the member 3 and thrown outwards to engage the inner face of the flange 7 on the member G.
Patent GB-970049-A (GB)
Title: Device for increasing pressure or speed of a fluid flowing in a pipeline
IPC: F04D29/46
Filed: 1961-01-10
Abstract: 970,049. Centrifugal pumps. H. G. BARTELS. Jan. 10, 1961, No. 972/61. Heading F1C. A pump for increasing pressure or speed of a fluid flowing in a pipeline comprises an electric motor 5, 6 driving an impeller 1, a casing arranged to be inserted into the pipeline and enclosing the motor and impeller and spaced therefrom to form a flow passage, the impeller 1 being automatically moved, when the motor current is switched off, from its operating position to a rest position in which the impeller offers little resistance to the flow in the pipeline, and a supplementary flow passage 3 which is automatically closed when the motor current is switched on and the impeller moved back to its operating position. When the motor current is switched off the rotor 5 is held in the retracted position shown, in which it partly projects from the stator 6, by a spring (not shown). Energization of the motor causes the rotor to be drawn into the stator and thereby displace the impeller 1 and a valve 2 to the left, the valve 2 then closing the passage 3. Specification 733,544 is referred to.
Patent HK-27983-A (HK)
Title: Improvements in or relating to electronic alarm timepieces
IPC: G04C21/36
Filed: 1983-08-18
Abstract: In apparatus for generating an alarm sound especially for small watches, all functions of the alarm are controlled by integrated circuitry which detects the state of a common connection point between a manually operable switch and a reference switch which is opened and closed by the timekeeping mechanism. There is thus only one external terminal led out from the integrated circuit for the purpose of connecting to the output side of the reference switch and the manually operable switch. The reduction in the number of terminals permits a corresponding reduction in the number of pins required and a reduction in the size of the circuit. The integrated control circuit includes flip-flops, gate circuits, inverters and a five minute counter.
Patent HK-45090-A (HK)
Title: Button
Inventor: LAM KAM YAU
IPC: A44B1/34
Filed: 1990-06-07
Abstract: A button hs a body (1) and a retainer (2) for securing the body to cloth. The retainer has a T-shaped member (5) with the leg of the T-shaped member (5) remote from the cross piece (6) shaped to form a hollow cup-shaped resiliently expandable member (8), the rim of which is directed toward the cross piece (6). The body has a receptacle formed by a blind bore (11) opening into a cup-shaped cross section similar to that of the resiliently expandable member. In operation the resiliently expandable member (8) rim (9) is contracted and the resiliently expandable member is pushed through the bore (11) into the receptacle cup-shaped cross setion (12) whereupon the resiliently expandable member (8) expands to hold the retainer (2) in locked position with the body (1).
Patent HK-69392-A (HK)
Title: Coin testing apparatus
Inventor: JOHNSON PETER REGINALD
IPC: G07F1/04
Filed: 1992-09-10
Abstract: @ A coin testing apparatus subjects a coin inserted into a coin entry (1) and rolling down an inclined track (2) to testing at a testing station (3) comprising sensors (4,5,6) which may for example be inductive sensors. If a coin is found to be acceptable an accept signal is generated and this causes gate mechanism (8) to open to permit the coin to access accept path (9), the gate mechanism (8) being normally closed so that unacceptable coins can only access a reject path (10). A post-gate detector (11) in the accept path (9) senses the passage of an accepted coin and serves to close the gate mechanism (8) and also to determine allocation of a customer credit. A pre-gate detector (12) upstream of the gate mechanism (8) has its output logically processed with the accept signal produced when an acceptable coin is tested and/or with the output of the post-gate detector (11).
Patent HK-72976-A (HK)
Title: Improvements in or relating to solid state electronic devices
IPC: H01L21/56
Filed: 1976-11-25
Abstract: 1428179 Semi-conductor devices WESTING- HOUSE ELECTRIC CORP 9 April 1973 [19 April 1972] 16826/73 Heading H1K [Also in Divisions C6-C7] The leads 41 of a solid-state device are electrolytically coated by making them anodic in a solution or colloidal suspension of an amine or imidazole salt of a polyamic acid (polyamide acid) and the material thus electrodeposited is heat cured to a polyimide film which forms flexible void-free interfaces with the leads and with a subsequently applied encapsulant which covers both the device and leads. The relative quantities of amine, polyamic acid, and solvents are critical, for both solution and colloidal suspension. In each case, more than one non- aqueous organic liquid is present in the composition. One or more of these act as a solvent for the polyamic acid and one or more act as non-solvent for the amine or imidazole salt of the acid. A variety of amines and imidazoles are listed. Solvents for the acid are N : N- dialkyl carboxylamides, dimethyl-sulphoxide, and pyridine. The non-solvents listed for the salt are all ketones. As shown a P+N silicon diode 40 has its body and electrodes protected with a silicon grease coating 45 while the leads are coated with polyamic acid and the device heat treated to form the polyimide. The diode is then vacuum baked, encapsulated with a mineral filled epoxy resin, and further baked to cross-link the resin. In general, encapsulants may be epoxy, silicone, polyester, phenolic, or diallylphthalate resins and may be filled with silica, benyl, or talc. Transistors, gate-controlled switches, and integrated circuits may be similarly treated.
Patent HU-T59188-A (HU)
Title: Apparatus for mixing fluids having quality different from one another particularly sewages and apparatus for contacting water and reagent particularly treated sewage and chlorine for the purpose of sterilization
Inventor: STEHLIK JOZSEF
IPC: C02F1/76
Filed: 1990-01-12
Abstract: Installation for mixing effluents and for bringing them in contact with chemicals and/or final disinfection by chlorine,- is equipped with holder (1a), a device conveying the liquids to be mixed and an outlet for the treated mixt. The holder (1a) is of cylindrical shape. The conveying device located in the holder area or placed above the holder following its dia carries a number of outlets or contains an element supplying liq. along its whole length. The holder contains at least one convection generating device near its wall. The mixed liq. removing device is in or near the vertical central axis(x) of the cylindrical holder. - The unit which ensures contact between fluids and chemicals is equipped with respective inlets and an outlet for the treated liqs. This amt is also cylindrical and as also contains a convector, and an outlet. The inlet pipe enters the unit laterally and is placed near the convector.
Patent HU-T60575-A (HU)
Title: Circuit arrangement for controlled converter
Inventor: KUFNER HERWIG
IPC: H02M1/12
Filed: 1990-09-06
Abstract: The operation of power converters places shift and distortion reactive power on the main power system. The interference currents thus generated can be short-circuited by impedance circuits, but this measure is not always sufficient. It is therefore proposed according to the invention to connect a controlled feedback auxiliary converter (2) using fast-switching semiconductors in parallel to a converter (1) on the input side. The actual value of the current measured on the input side is fed in both converters (1, 2) to an adding device (7, 8) connected to a current regulator (9, 10) which is connected in turn to a control (11, 12) for the converters (1, 2). A reference current interfaced via a multiplier (14) with a reference sine wave (15) which is synchronised with the a.c. voltage applied to the converters (1, 2) is taken to the adding device (7) for converter (1). The difference between the actual and reference values at this converter (1) is taken to an inverter (16), the output signal of which is taken to the adding device (8) for the auxiliary converter (2) as a reference value. Unlike tuned impedance circuits, this arrangement not only impedes certain frequency components in the interference currents but also facilitates the compensation of any shape of curve through the high switching frequency of the auxiliary converter (2).
Patent JP-H06204891-A (JP)
Title: Data compression method
Inventor: YOSHIDA MAKOTO
IPC: H03M7/40
Filed: 1993-01-05
Abstract: PURPOSE:To compress data using run length codes even when the statistical characteristics of an information source is unknown by utilizing the correlation of adjacent data concerning a data compression method for excluding the redundancy of image data such as facsimile data and picture data, etc., and for compressing a data amount. CONSTITUTION:Two continuous pieces of the successively inputted picture data of L bits are compared in the unit of bit and difference data composed of bit strings with coincidence as '0' and with non-coincidence is '1' are obtained (11, 12.) A '0' and with number from the high-order bits of the difference data is obtained and converted into the run length code of a W=['log2 L'+1] bit width (14) and the data for which the low-order bits (13) excluding the '0' continuous number +1 bit in the difference data are added behind the run length code are outputted as compressed data.