baber/WOPTO huggingface dataset:
Patent GB-605415-A (GB)
Title: Improvements in or relating to absorption refrigerating apparatus
IPC: F25B47/00
Filed: 1945-12-21
Abstract: 605,415. Refrigerating. AKTIEBOLAGET ELEKTROLUX. Dec. 21, 1945, Nos. 34776 and 34777. Convention dates, Jan. 22 and Dec 6. Drawings to Specification. [Class 29] [Also in Group XVIII] Absorption refrigerating apparatus contains a solid corrosion-preventing substance having a solubility in the absorption medium not exceeding 2 per cent, e.g. strontium or lead chromate.' A further substance, e.g. sodium hydroxide may be added which upon disintegration or dissolution activates the difficultly soluble corrosion-preventing substance. A compressed tablet of strontium chromate is contained in a receptacle situated in the absorber or a vessel communicating therewith and having openings covered with fine-meshed iron gauze. The invention is particularly applicable to apparatus in which boiler solution is supplied to the evaporator for defrosting, precipitation in the evaporator being avoided. The solution may also contain a nitrite e.g. sodium nitrite the protective action of which is extended in duration by the chromate.
Patent GB-1375479-A (GB)
IPC: C12C11/00
Filed: 1972-07-26
Abstract: 1375479 Matured malt beverage concentrate SUNTORY Ltd 26 July 1972 [18 Feb 1972] 34872/72 Heading C6E Yeast is removed from a wort during fermentation or lagering; the wort is then concentrated and yeast is added to complete lagering. Water and/or CO 2  may be added to the concentrate thus produced. 30-80% w/w of the water may be removed and the preferred method of removal is one of fractional crystallisation in which the concentrate is recycled. The yeast added to the concentrate may be that which was removed before concentration or it may be yeast in suspension in a young beer which is undergoing fermentation.
Patent GB-1384728-A (GB)
Title: Separation twist crimping of thermoplastic filaments or yarns
IPC: D02G1/04
Filed: 1972-07-26
Abstract: 1384728 Separation twist crimping; false twisters BARMAG BARMER MASGHINENFABRIK AG 26 July 1972 [27 July 1971] 34879/72 Headings D1D and D1F Two or more thermoplastic filaments or yarns 4.1, 4.2 are continuously crimped by twisting or coiling them together to form a twisted strand 3, setting the strand with heater 7 and separating the filaments, whereby the twisted strand is driven by a friction drive 12 between the region in which heat setting occurs and the point of separation of the filaments. The friction drive may surfice to completely separate the filaments, in which case separation takes place within the friction drive means. Alternatively separation may be assisted by tension applied to the separated filaments. A cooling fan (8, Fig. 1, not shown) may be interposed between heater 7 and friction drive 12. As shown the friction drive comprises 2 friction wheels 13.1, 13.2; alternatively three wheels or groups of wheels may be used with the three axes arranged in an isosceles triangle (Fig. 10, not shown). Preferably the twisted strand 3 is driven at a speed which decreases towards the point of separation 5. This may be accomplished by a pair of conical or frusto conical driving means (14.1, 14.2, Fig. 6, not shown), by a plurality of driving wheels (15, Fig. 7, not shown) coaxially mounted upon a single spindle, the diameter of the wheels decreasing towards the separating point, or by a rotating conical sleeve (16, Fig. 8, not shown) which rotates at an angle to the thread. Guide means may be provided for each separated thread to minimise displacement of the point of separation.
Patent GB-1388367-A (GB)
Title: Process for producing hydrogen and electricity from sea river or lake water
IPC: C25B1/04
Filed: 1974-06-25
Abstract: 1388367 Electrolysis A P PEDRICK  25 June 1974 35029/73 Heading C7B In a plant for extracting hydrogen from water by electrolysis, the oxygen produced as a byproduct is used as a means for burning matter which is not readily combustible in air, e.g. garbage. The heat thus produced drives a turbine 16 which in turn drives an electric generator 17. The output of the latter provides at least part of the electricity supply for the electrolysis.
Patent GB-915343-A (GB)
Title: Preparation of organic monoborate salts
IPC: C23F11/12
Filed: 1960-10-13
Abstract: An alkali metal salt of a glycol monoborate derived from a 1,2 or 1,3-glycol having from 2 to 10 carbon atoms (for preparation see Group IV(b)) when added to lubricating oils acts as an anti-sludging agent.  The salts in the same quantities act as anti-corrosion agents in lubricating oils and greases.  Oil-base paints, varnishes or lacquers.  An alkali metal salt of a glycol monoborate as above, preferably sodium 2-methylpentanediol-2,4-monoborate, when added in amounts of (e.g.) 0,5% to 10% to oil base paints, varnishes and lacquers, which contain common commercial solvents, dissolves and renders the composition flame resistant.  Reference has been directed by the Comptroller to Specification 822,279.ALSO:Reference has been directed by the Comptroller to Specification 822,279.ALSO:An alkali metal salt of a glycol monoborate is made by reacting an alkali metal hydroxide with a di-glycol boric anhydride derived from a 1,2- or 1,3-glycol having from 2 to 10 carbon atoms, for example, 2-methylpentanediol-2,4; propanediol-1,2; butanediol-1,3; 2,2,4-trimethylpentanediol-1,3; pentanediol-2,3; 2,3,4-trimethylpentanediol-,2,4; and catechol.  All of the alkali metal hydroxides are suitable.  An example describes the preparation of sodium, potassium and lithium 2-methylpentanediol-2,4-monoborates. The products may be used as lubricating oil additives, as flame retardants in paints, lacquers or varnishes and as dehydrating agents in silicone resins.  Reference has been directed by the Comptroller to Specification 822,279.
Patent GB-996443-A (GB)
Title: Improvements in or relating to toy building elements
IPC: A63H33/08
Filed: 1963-09-05
Abstract: 996,443. Building elements. L. GHERZI, and E. RAFFA, [trading as GHERZI E C.S.A.S.-]. Sept. 5, 1963 [Sept. 7, 1962], No. 35053/63. Heading A6S. A composite or assemblable toy comprises cylindrical components cone-shaped one end and forcibly insertable in the opposite end of similar components, and pins located along the generatrices of each component insertable into rows of holes along other generatrices of each component, said conical ends being also formed with holes so as to be locked into the end of another component by the pins of an adjacent component.
Patent GB-349055-A (GB)
Title: Centrifugal oil purifier
IPC: B04B5/00
Filed: 1929-11-18
Abstract: 349,055. Centrifugal machines. SCHWERDTFEGER, W., 5, 'Waldemarstrasse, Rathenow, Germany. Nov. 18,1929, No. 35174. Convention date, Nov. 19, 1928. Void [Published under Sect. 91 of the Acts]. [Class 23.] Driving. - A centrifugal separator 6 for purifying the circulated lubricating oil for an internal-combustion engine, is driven by an impulse turbine 5 operated by the oil to be purified. The oil, after use, drains into the receptacle 1 from which it is supplied by the pump 2 to the turbine nozzles 4; it passes from the turbine to the separator 6, and clean oil is collected by the casing 7. The pump 8 then supplies it to the consumption circuit. The pumps 2, 8 may be designed to deal with the same quantity of oil ; or the pump 2 may have a larger capacity than the pump 8 in which case the latter pump is supplied through a funnel connection and part of the clean oil flows over the funnel into the receptacle 1. The turbine may be arranged inside the separator as shown, or may be arranged beneath it.
Patent GB-766654-A (GB)
Title: Improvements in or relating to the plasticisation of aqueous dispersions of polymeric materials
Inventor: COFFEY DAVID HAY
IPC: C08J3/18
Filed: 1953-12-18
Abstract: Aqueous dispersions of plasticised polymeric particles are manufactured by incorporating emulsified plasticisers into aqueous dispersions of polymers at temperatures from 80 DEG  to 90 DEG  C. The polymer may be polyvinyl chloride, polymethyl methacrylate, polystyrene or a vinyl chloride-vinyl acetate copolymer, and the plasticizer may be dibutyl phthalate, dioctyl phthalate or tricresyl phosphate.  When using vinyl chloride resins there may be incorporated stabilizers such as calcium, lead and cadmium stearates, dibutyl tin dilaurate, diphenylthiourea, or an organic epoxide such as an ester of epoxystearic acid.  Emulsifiers which may be used are sulphonated castor oil, sodium stearate, sodium cetyl sulphate, the soluble salts of polyacrylic and polymethacrylic acid, an ethylene oxide condensate, polyvinyl alcohol, cetyl pyridinium bromide or cetyl trimethylammonium bromide.  The dispersions may be used for the production of foils and for coating of paper and fabrics with or without the addition of thickening agents such as casein, the ammonium or sodium salts of polyacrylic or polymethacrylic acid, or methyl cellulose.
Patent GB-1424117-A (GB)
Title: Speed control arrangements for asynchronous motors
IPC: H02P27/02
Filed: 1973-07-24
Abstract: 1424117 Automatic control of speed SIEMENS AG 24 July 1973 [14 Aug 1972] 35297/73 Heading G3R A speed control arrangement, for a rotary or linear asynchronous motor 1 connected to a constant frequency supply 2 through a voltage or current control device 3, detects the actual power of the motor and compares this with a desired power signal derived from a motor speed setting arrangement to produce a signal for controlling the device 3 and thus the speed of the motor. The motor input power N is derived from current 8 and voltage 9 transformers by device 7 and is compared with the desired power signal N*. The difference signal is supplied to controller 6 whose output signal passes through disiminator 5 to control unit 4 for controlling device 3. The disiminator 5 also is supplied with a current limit signal and is designed to pass the lowest value signal to control unit 4. The desired power signal N* is derived from the speed error as determined at the input to amplifier 15 by the comparison of V and V*. A further minimum value circuit 14 ensures that there can be no overshoot of speed over the desired speed level and its output is used in starting controller 13 to provide a signal N* which cannot vary as a stop function. A differentiating feedback circuit provides an integration characteristic in the speed loop. A changeover switch 12 allows for an alternative direct method of deriving the desired signal N* by means of a setting potentiometer 21. A connection between the alternative arrangements through circuit 22 ensures that the changeover switch can be operated without disturbing the drive.
Patent GB-969000-A (GB)
Title: Improvements in or relating to electro-acoustical apparatus
IPC: H04R1/34
Filed: 1960-10-14
Abstract: 969,000. Microphones. ELECTRO-VOICE Inc. Oct. 14, 1960 [Oct. 22, 1959], No. 35326/60. Heading H4J. A microphone having a unidirectional characteristic, comprises a transmission line coupled to one side of a diaphragm of the microphone, the line having a plurality of sound paths of different lengths, such that at the lowest frequency of the response range the largest path is less than half a wavelength longer than the shortest path, and an acoustic impedance coupled to the other side of the diaphragm so that in the lower part of the frequency range of the microphone, its characteristic is cardiod. A moving coil 74 (Fig. 3) type transducer, the magnet 54 of which is provided with a bore 56 aligned with the transmission line 10, is mounted in a housing 12 at one end of the transmission line 10. The latter consists of a pipe 18, which has a number of cloth covered holes 16 along its length, one end of the pipe 18 being closed by a plug 20 (Fig. 2) which has a hole 22 connecting with the outer air. A sleeve 24 (Fig. 1) encloses pipe 18 and is provided with a number of slots 26 covered with cloth 28. The acoustic impedance " behind " the diaphragm 72 comprises two air chambers defined by cover 86, disc 82 and plate 76 (Fig. 3). Cover 86 has a slot 92 (Fig. 1) open to the outer air and positioned in the vicinity of a mounting bracket 14 for the microphone. Further cloth covered holes in disc 82 and plate 76 connect the first air chamber to the space behind the diaphragm 72. The acoustic impedance is adjusted so that the microphone acts as a pressure gradient type having a cardiod characteristic below a frequency in the range 200-800 c.p.s. For frequencies above this frequency, the impedance is very great and the microphone functions as a pressure-type line microphone having a highly directive characteristic.
Patent GB-1184637-A (GB)
Title: Purification of Propylene Oxide
IPC: C07D301/32
Filed: 1968-07-24
Abstract: 1,184,637. Propylene oxide. JEFFERSON CHEMICAL CO. Inc. 24 July, 1968 [25 July, 1967; 11 July, 1968], No. 35397/68. Heading C2C. A process for the removal of methyl formate from propylene oxide comprises introducing into a vessel, a propylene oxide, contaminated with methyl formate, and an aqueous slurry of calcium hydroxide in an amount at least stoichiometrically equivalent to the methyl formate, establishing temperature and pressure conditions within the vessel to produce a reaction between the methyl formate and the calcium hydroxide and removing propylene oxide substantially free of methyl formate from the vessel. The process may be carried out batch-wise or continuously, the latter comprising introducing the contaminated propylene oxide continuously into a column and simultaneously introducing an aqueous slurry of calcium hydroxide into the column at a point above the point at which the propylene oxide is introduced and continuously removing the propylene oxide substantially free of methyl formate overhead and the aqueous slurry containing calcium formate as bottoms, the column being operated at a temperature above the boiling point of propylene oxide but below 100‹ C., the feed rates of propylene oxide and aqueous slurry being such that the amount of calcium hydroxide or oxide is at least stoichiometrically equivalent to the methyl formate and the temperature and feed rates being correlated to minimize the amount of propylene oxide in the bottoms.
Patent GB-1272027-A (GB)
Title: Improvements in or relating to engine-driven compacting rollers
IPC: E01C19/28
Filed: 1970-07-22
Abstract: 1,272,027. Road rollers. RICHIER. 22 July, 1970 [23 July, 1969], No. 35455/70. Heading B7H. In a compacting roller having two rolls mounted in respective frame portions 2a, 2b connected for rotation about a vertical axis by a resilient joint 3, two pneumatic tyred drive wheels 12 mounted on the output shaft of an engine/gear-box unit 5, 6 each engage the two rolls one on each side of the central longitudinal plane of the roller, and the engine/gear-box unit 5/6 is connected by a swivel joint 7 to one frame portion 2a and by a resilient pivot 9 to a steering handle 8 which is connected by a resilient pivot 10 to the other frame portion 2b. When a lateral force is applied to the steering handle 8, the handle turns about the pivot 10 and a horizontal force produced at the pivot 9 tilts the engine/gear-box unit 5, 6 sideways so that one drive wheel 12 is forced between the rolls to rotate the frame portions 2a, 2b about the joint 3. Vibrators 13a, 13b are driven from a pulley 17 through a belt drive and flexible shafts.
Patent GB-920977-A (GB)
Title: An improved grab-bucket
IPC: B66C3/16
Filed: 1960-10-17
Abstract: 920,977. Grabs for handling material. SOC. FRANCAISE DE CONSTRUCTION DE BENNES AUTOMATIQUES BENOTO. Oct. 17, 1960 [Oct. 16, 1959], No. 35526/60. Class 78 (4). Rams 4 operating the jaws 8 of a grab with more than two jaws, are disposed below the pivots 9 of the jaws. The rams may be provided with pressure fluid from the hydraulic set of the crane carrying the grab, but in the form shown the pressure fluid is provided by a pump and motor set 3, 2 mounted in a housing 1 to which the grab arms 8 are hinged at 9. Plates 24 hinged at 25 to the arms slide over a fixed central platform 2 to protect the rams from dirt.
Patent GB-737548-A (GB)
Title: Method of treating soil
IPC: C05C11/00
Filed: 1953-12-22
Abstract: To increase the nitrogen content of the soil and to destroy harmful organisms, a fluid containing nitrogen dioxide, particularly in the liquid form, is injected below the surface. Preferably nitric oxide is also included and a diluent, such as air or a non-oxidizing gas such as nitrogen or carbon dioxide, may be added.
Patent GB-1220524-A (GB)
Title: Halogenated norbornene-methanonaphthalene derivatives and their applications in plastics materials
IPC: C07C43/192
Filed: 1968-07-25
Abstract: 1,220,524. Halogen-containing fire-retardants for polymers. BORG-WARNER CORP. 25 July, 1968 [7 Aug., 1967], No. 35622/68. Headings C3G, C3P, C3Q and C3R. [Also in Division C2] Polymer compositions contain as a flame retardant additive compounds of the Formula I wherein X represents halogen, Y and Y<SP>1</SP> represent halogen, alkyl C 1-4 , alkoxy C 1-4  or halogen substituted alkyl C 1-4  or alkoxy C 1-4  and R represents hydrogen, alkyl C 1-4  or halogen. Suitable polymers include natural rubber, linear and cross-linked polybutadiene, polyethylene, polypropylene, butyl rubber, ethylenepropylene rubber and terpolymer, poly(cyclopentadiene), polystyrene and high impact polystyrene, acrylonitrile - butadiene - styrene graft polymer, polyamide, poly(styrene-acrylonitrile), acrylic rubber and polycarbonate. The preferred compound I is 6-(1<SP>1</SP>,4<SP>1</SP>,5<SP>1</SP>,6<SP>1</SP>,7<SP>1</SP>,7<SP>1</SP>- hexachloro - 5<SP>1</SP> - norbornen - 2<SP>1</SP> - yl) - 1,2,3,4,9,9- hexachloro - 1 ,4,4a,5,6,7, 8,8a - octahydro - 1,4- methanonaphthalene. Antimony compounds may also be present.
Patent GB-1401037-A (GB)
Title: Electrical contact materials
IPC: C22C32/00
Filed: 1972-08-01
Abstract: 1401037 Ag/Cu -based materials SQUARE D CO 23 July 1973 [1 Aug 1972] 35826/72 Heading C7A A material for electrical contacts consists, by weight, of 5 to 50% copper 2 to 20% lanthanum strontium chromite, La 1-x  Sr x  CrO 3  (o<x<1) the balance being silver. The properties and methods of preparation of these materials are similar to those disclosed in Specification 1398143.
Patent GB-1121123-A (GB)
Title: Improvements in or relating to seat assemblies
Inventor: SMITH SIDNEY JOHN
IPC: A47C5/00
Filed: 1964-09-02
Abstract: 1,121,123. Seats. SHORT BROS. & HARLAND Ltd. 2 Sept., 1965 [2 Sept., 1964], No. 35962/64. Heading A4J. In a seat, constructed of laminated material, back rest members 2 are pivotally supported, for angular adjustment, on transverse partition walls 3, provided at the ends and middle of a trough-shaped seat pan (1). The walls 3 may be secured in the pan by angles (7). Metal legs 5 may be bolted to the pan. A support member (6, Fig. 3, not shown), for cushions, is stretched between the upper edges of the pan. The laminated material has a core of balsa wood, metal or paper honeycomb or foamed plastics bonded between sheets of metal, plastics, resin impregnated fibre, wood veneer or plywood. Preferably, the pan, walls 3 and members 2 are contructed of a laminate, having a core of balsa wood sandwiched between sheets of aluminium alloy.
Patent GB-830710-A (GB)
Title: Improvements in coupling or end boxes for electric cables
IPC: H02G15/26
Filed: 1957-11-19
Abstract: 830,710. Cable end sleeve; insulating cable and wire joints. SOC. INDUSTRIELLE DE LIAISONS ELECTRIQUES. Nov. 19, 1957 [Nov. 18, 1956], No. 36035/57. Classes 36 and 38 (1). A non-return valve is fitted to the wall of a coupling or termination box for an electric power cable so that excess pressure due to expansion of the filler material may bE relieved while preventing the entry of water or water or water vapour' undei normal conditions. An electric cable 1 passes intc a termination box formed by an insulator 2 and a conical member 3 on the wall of which is a non- return valve 4. The valve may have a ball held against a hole by a spring or it may consist of a conical plug held in a conical seating.
Patent GB-1475809-A (GB)
Title: Telephone system
IPC: H04Q3/52
Filed: 1974-08-16
Abstract: 1475809 Automatic exchange systems, transmission gates SIEMENS AG 16 Aug 1974 [22 Aug 1973 (4)] 36086/74 Headings H4K and H3T In a telecommunications system employing bidirectional electronic cross-points a register junctor is used as an off-hook detector. In one embodiment shown the cross-points such as TAa to TCb are photo-triacs controlled by thyristors such as TYA to TYC and light emitting diodes LDA and LDC in holding wires each connected between a transistor T and a positive supply, the thyristors being in turn controlled by driving transistors MA to MC. In operation the control unit ZE/WS/M selects a free connection set VI and sequentially connects it via the network to each free subscriber line in turn, the addresses of busy subscribers being stored in the common control. When the junctor is connected to a substation that has just gone off-hook a detector AWA in the junctor responds to the loop and signals to the control stopping the scan, another free junctor being selected and allocated for scanning at this point. The junctor causes dial tone to be transmitted to the caller. As this tone includes zero transistions the triacs in the path repeatedly switch off, but are immediately turned on again by virtue of the hold wire. Dial impulses are generated by simultaneously opening contacts 2nsi, 3nsr producing loop resistance reductions rather than loop breaks. Thus the thyristors remain conductive when dial tone is removed and the hold wire may be de-energized at this time. The impulses received by the detector ASA may be analysed in the junctor or the common control. When the identity of the called party is established it is determined, by the busy subscribers addresses stored and/or by the loop state of the called subscriber as determined by a second analyser on the called subscriber side of the junctor, whether the called subscriber is free. The connection when established is monitored by the junctor a loop break being recognized as a disconnection request. As described the exchange is a PBX with call transfer/enquiry facility and to allow for this in the embodiment shown the hold wire is maintained throughout the connection. To effect a transfer either party operates an earth key ET earthing one wire of the path. The analyser on that side signalling to the control unit that such a request has taken place. The hold wire constitutes a record of the path employed for the original connection and thus the other extension involved to allow the latter to be re-connected when required. In another embodiment using conventional rather than light controlled triacs, the hold wire cannot be maintained during speech and the junctors include subscriber address stores to allow for the re-establishment of a connection.
Patent GB-163282-A (GB)
Title: A method of and apparatus for the manufacture of bottle closures of the crown-type
IPC: B67B3/064
Filed: 1920-12-23
Abstract: 163,282. Lassen, A. J. L. May 8, 1920, [Convention date]. Addition to 159,167. Capsule closures; stoppers, making.- Relates to means for feeding cork discs to the machine for making crown capeules described in the parent Specification. The discs are held in a container a and are fed into a tube b by means of a curved arm e secured to ahead d on a shaft c. The container is made of conical shape at the lower end so that the discs always fall within the radius of action of the arms e.