baber/WOPTO huggingface dataset:
Patent GB-1515332-A (GB)
Title: Monitoring a drive system comprising a plurality of rotating field motors
IPC: H02H3/38
Filed: 1975-05-23
Abstract: 1515332 Protecting motor installations SIEMENS AG 23 May 1975 [11 June 1974] 22885/75 Heading H2K A monitoring arrangement for a plurality of motors such as 3 determines, for each motor in turn, whether the phase angle between a current and a voltage supplied to the motor is within a predetermined range. The motors may be three-phase hysterisis motors driving centrifuges, phase angles outside the predetermined range signifying asynchronous operation or failure of one of the phases of the supply. A phase angle comparator 19b receives a first alternating signal u representing one of the phase-to-phase voltages and a second alternating signal i 2 , derived from a scanner 25, representing one of the phase currents of each motor in turn. After converting (20, 32) both alternating signals into square waves, a first short pulse c<SP>1</SP> is generated a fixed delay after the leading edge of the voltage square wave and a second short pulse b<SP>1</SP> is generated at the leading edge of the current square wave. If the motor 3 is running normally, these pulses will coincide, and this is detected by a NAND gate 42 to provide, via a pulse lengthening circuit 43, a steady output signal s2.
Patent GB-228830-A (GB)
Title: Improvements in or relating to the treatment of cereal substances
IPC: A21D6/00
Filed: 1923-09-12
Abstract: 228,830. Jones, D. W. Kent-, Chitty, C. W., and Woodlands, Ltd. Sept. 12, 1923. Conditioning wheat, flour, &c.-Wheat is treated to improve the gluten strength of the flour prepared therefrom by heating it to a temperature approximately between 120‹ F. and 200‹ F. for a period of time greater than that in which no change occurs but insufficient to render the gluten non-retainable when the flour is submitted to a washing test. The wheat is heated without passage of air therethrough but in an apparatus from which evaporated moisture can escape such as is described in Specification 164,653 having a set of water-jacketed tubes C through which the wheat descends to a chamber F. The time of passage of the wheat through the apparatus is controlled by relatively moving grids E, E<1>, G, G<1> controlled by a funnel-shaped bucket A<3>. A cooling leg K<1> receives the treated grain from an elevator K. The time of treatment varies according to the temperature employed from about 4 days at 120‹ F. to about 2 hours at 155‹ F. The grain may be damped or washed after treatment. Specifications 24129/07, 24425/08, 164,557 and 228,829 are referred to. One Provisional Specification states that the treatment mav be carried out in a closed vessel to prevent evaporation, and may be applied to flour &c., and refers to Specification 115,410.
Patent GB-483639-A (GB)
Title: Improvements relating to shelves for use in gas cookers
IPC: F24C15/16
Filed: 1936-08-22
Abstract: 483,639. Oven shelves. RADIATION, Ltd., YATES, H. J., HARTLEY, H., and LAKE, F. Aug. 22, 1936, No. 23146. [Class 126] The shelf of a gas oven comprises a grid a, b and a narrow gas-deflecting plate c at or near one end or either or each side of the main part of the grid, the plate being so arranged or constructed that when a food container is situated on the shelf over the plate, a shallow air space is provided between the plate and container. In the form shown, the plates c and the bars b of the grid are secured to the upper side of the rectangular frame a of the grid. Each plate c is in the form of a shallow channel. In another form, the plate c, which is at the back, is attached to the underside of the grid, and has an upwardly extending flange at the back to prevent food from projecting back beyond the shelf. The plate or plates c may be between the upper and lower surfaces of the grid bars. Specification 135,144, [Class 126], is referred to.
Patent GB-1115995-A (GB)
Title: Polyurethanes formed from sulphur condensation products and method for their production
IPC: C09J187/00
Filed: 1965-05-27
Abstract: Polyurethanes are prepared by reacting (a) a polyisocyanate with (b) a compound consisting of residues of hydroxylated phenols joined by sulphur linkages and containing reactive hydroxyl groups. Preferably, the compounds (b) contain an average of 2.5 to 7 phenylene-oxyalkanol radical joined by sulphur linkages and having a ratio of 0.85 to 1 atom of sulphur/phenyleneoxyalkano radical, a hydroxyl no. of 30 to 500 and a viscosity of 50 to 500 Gardner seconds at 50 DEG  C. Conventional polyisocyanates, especially polyaryl polyisocyanates may be used.  The polyurethanes may be foamed by including a foaming agent in the reaction mixture which may also contain catalysts such as tertiary amines and antimony and tin compounds, phosphorus compounds for improved fire resistance such as tertiary phosphates, secondary phosphonates, phosphinates, tertiary phosphine oxides, tertiary phosphites, secondary phosphonites, phosphinites and phosphorus acids including those which are partially esterified; surfactants such as polysiloxanes; fillers such as clay, calcium sulphate or ammonium phosphate; dyes and fibrous compounds such as glass, asbestos and synthetic fibres.  One or more compounds (b) may be used in admixture or in admixture with conventional hydroxyl containing materials such as a polyether or polyester or a polyhydric alcohol.
Patent GB-829817-A (GB)
Title: Improvements relating to machines for the production of spring assemblies
Inventor: SCHOFIELD FRED
IPC: B21F33/04
Filed: 1957-07-23
Abstract: 829,817. Machines for connecting upholstery springs. WOODFIELD ENGINEERING CO. Ltd. June 27, 1958 [July 23, 1957; Jan. 17, 1958], Nos. 23248/57 and 1660/58. Class 52(4) Relates to apparatus in which helical connector wires 1 are fed and rotated by sets of spinning rolls 7 so as to engage successively the top and bottom turns of double conical springs 2 arranged in two abutting rows, the springs being compressed by jaws 3 actuated by a fluid-pressure jacks and carried on a beam 5 which can be raised to inoperative position by a further fluid-operated jack. According to the invention, the wires 1 are in an electric circuit which is completed by the wires touching contacts 8, 9 when they reach the ends of the spring rows, the circuit then operating means to free the jaws 3, raise the beam 5 and free the wires from the rolls 7. This action can also be brought about by a hand-wheel 32 or a pedal 33 at will.
Patent GB-309361-A (GB)
Title: Improvements in and relating to the separation of the powder from granular or like material
IPC: B07B4/04
Filed: 1928-08-13
Abstract: 309,361. Ortmann, K. Aug. 13, 1928. Pneumatic separating. - Powder or dust is separated from granular material by passing the stock over :a series of suction nozzles arranged in staggered relation. As shown in Figs. 1, 2 and 4 the nozzles a are in the form of V-shaped plates a<2>, cut away at the sides as shown at c and partially closed at the bottom by a plate e which leaves a slot b between each edge and the bottom edges of the plates a<2>, and is ridged at the centre to provide a discharge shoot for the separated dust to each side. The nozzles are secured in a casing and communicate at both ends with air passages d<1>, d<2> connected to a suction pump. In a modification plates are provided in front of the nozzles to deflect the falling material and reduce its speed.
Patent GB-1191192-A (GB)
Title: A method of producing Vinyl Fluoride
IPC: C07C17/00
Filed: 1968-05-16
Abstract: 1,191,192. Vinyl fluoride and chloride. DENKI KAGAKU KOGYO K.K. 16 May, 1968 [19 May, 1967], No. 23350/68. Heading C2C. Vinyl fluoride is produced by thermal dehydrochlorination of CH 3 -CHClF at a temperature of 500-800‹ C. and a pressure of at least 10 kg/cm.<SP>2</SP> gauge and in the absence of a catalyst for the decomposition. Vinyl chloride is obtained as a by-product.
Patent GB-1530784-A (GB)
Title: Process for the roasting of coffee
IPC: C07D277/30
Filed: 1975-05-29
Abstract: A drum (1) which acts as roasting chamber is rotatably mounted by means of a hollow shaft (4) and set in rotation by a motor (11). The drum (1) can be heated by means of gas burners (15). Glass beads or similar particles which act as heat-transfer medium are introduced into the drum (1) via a ball valve (3). While the drum (1) is rotated, the heat transfer medium is brought to the desired temperature by means of the gas burners (15). Once the desired temperature is reached, the heat supply is interrupted, and the green coffee beans are added to the heated heat transfer medium. Coffee beans and heat transfer medium are brought into intimate contact by rotating the drum (1). When the roasting procedure is ended, the drum (1) is emptied, and the roasted coffee beans are separated from the heat transfer medium, which is recycled. The process allows organoleptic effects to be achieved, which improve the quality. However, in many cases, this improvement is linked to an increase in titratable acid. The improved quality is particularly obvious in the case of robusta coffee. <IMAGE>
Patent GB-355919-A (GB)
Title: Improvements in or relating to magnet systems for loud-speakers
IPC: H04R11/00
Filed: 1930-08-05
Abstract: 355,919. Loud - speakers. N A A MLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13D, Emmasingel, Eindhoven, Holland. Aug. 5, 1930, No. 23424. Convention date, Sept. 27, 1929. [Class 40 (iv).] A magnet system for a loud-speaker comprising a ferro-magnetic armature has those vibrating parts, which, owing to their form and the properties of the material of which they are mademay give rise to resonance effects in the audible frequency range, because, due to their function, they cannot be made sufficiently rigid to have a natural frequency outside the audible range, made of a material having such internal damping that, in the neighbourhood of the fundamental frequency of the whole moving system, the resonance curve has a smooth course. The construction shown comprises a magnet 1 having pole shoes 2 .. 5, the poles 2, 5 being of one polarity and the poles 3, 4 of the opposite polarity. An armature 6, passing through a coil 7 and located in the polar gaps, has its ends secured to the centres of flat springs 11, the ends of which are clamped by screws. Two rods 8, a yoke 9 and a rod 10 connect the ends of the armature with a diaphragm. In such a construction, the springs 11 and preferably the yoke 9 are made of a pressed material prepared with the aid of artificial resins, such as pitch or that known under the registered Trade Mark " Bakelite." The rods 8, 10 can be made so stiff that they have natural frequencies outside the audible range and need not therefore be made of a material according to the invention. The Specification as open to inspection under Sect. 91 (3) (a) refers also to the application of the invention to microphones. This subject-matter does not appear in the Specification as accepted.
Patent GB-744019-A (GB)
Title: Anhydrochlortetracycline and acid addition salts thereof
Filed: 1953-08-24
Abstract: Anhydrochlortetracycline is prepared by treating chlortetracycline, or a mineral acid addition salt thereof, with a strong non-oxidizing and non-reducing mineral acid such as hydrochloric, hydrobromic, sulphuric or phosphoric acid, at temperatures below 100 DEG  C.  The temperature may be 10 DEG C., room temperature or higher, 60 DEG  to 80 DEG  C. being preferred.  The reaction time is 10 minutes to 2 hours.  The anhydrochlor-tetracycline may be isolated as the mineral acid salt or as the base by adjusting the pH of an aqueous solution of the salt to pH5 and extracting with ether.
Patent GB-1235488-A (GB)
Title: Improvements in or relating to the production of supported diffusion membranes
IPC: G01M3/20
Filed: 1968-05-17
Abstract: 1,235,488. Leakage detectors. VARIAN MAT G.m.b.H. May 17, 1968 [June 5, 1967], No.23555/68. Heading G1S. [Also in Division B1] A leakage detector tube, see Fig. 1, comprises a vacuum chamber 1 defined by an envelope 2 provided with a "window" 3 constituted by a supported diffusion membrane comprising a selectively permeable diffusion membrane 4 fixedly supported on a porous permeable carrier 8. The chamber is provided with an ionization manometer 5 connected via an electric lead 6 to an indicator device (not shown) and with a heating coil 7 mounted adjacent the membrane which is located inside the chamber; alternatively, the membrane, which may have a thickness of for example 3Ám, may be located outside the chamber and may be covered by a protective grid (not shown) supported by the envelope. The leakage detector tube may be used for locating leaks in pressure vessels; when helium is used as the test gas in such an application, the membrane and/or the porous permeable carrier may be made of quartz. The supported diffusion membrane is prepared by a method wherein material is applied to an initially pore-free surface of a carrier to form a selectively permeable diffusion membrane thereon and, subsequently, pores communicating with the membrane are formed in the carrier. The material which is to form the membrane may be applied by vaporization or by deposition from an ion beam or from a plasma beam. The carrier initially may be non-porous and, after application thereto of material which is to form the membrane, may be rendered porous by removing an integral or constituent component therefrom by treatment which has no effect on the membrane; as exemplified, a non-porous carrier made of an alkaliborosilicate glass is rendered porous by leaching alkali metal oxide and boron oxide components therefrom to leave a spongy skeleton of silica. Alternatively, the carrier initially may be porous and, before application thereto of material which is to form the membrane, may be rendered non- porous by closing pores therein by a filling material which, after application to the carrier of material which is to form the membrane, is removed from the pores thereby again to render the carrier porous. The filling material may be removed by being dissolved in a solvent or by being converted by chemical reaction into a liquid or gas; alternatively, the filling material may be a material, for example tin or indium or an alloy thereof melting at a temperature of from 100C. to 300C., which changes its state into a fluid phase at a temperature lower than the temperature at which the material of the carrier melts or evaporates and may be removed by bringing it into the fluid phase. The supported diffusion membrane may be used in applications other than as a component part of a leakage detector tube; such applications are given in the Specification.
Patent GB-751074-A (GB)
Title: Improvements in or relating to parking meter housing
IPC: G07F17/24
Filed: 1954-08-13
Abstract: 751,074. Parking meters. MICHAELS ART BRONZE CO., Inc. Aug. 13, 1954 [Sept. 1, 1953], No. 23574/54. Class 27 A housing for a parking meter, particularly the twin parking meter described in Specification 751,073, has a pair of identical halves 13, 14 each hinged to the meter base 11 at 15 and the two halves are held together in the closed position by a cover 24 which is hingedly fitted on one half and is secured to a screwed member 34 on the other half by a stud 32; a tumbler lock 30 normally locks the stud to a lock body 29 slidable in the cover but the stud is freed for rotation by the insertion of a key. Internal sealing strips cover the meeting lines 16 of the two halves. Four flag windows 19, two aligned coin-viewing windows 23, two coin slots 21 and a hole 20 for a clock-winding key are provided. The meter mechanism has feet engaging between rails 37 and a lug on a platform 36 and the closing movement of the halves of the housing slides the mechanism to its proper lateral position.
Patent GB-358184-A (GB)
Title: Improvements in the manufacture and production of antiincrustation briquettes or blocks, more especially intended for use in steam boilers, economisers and radiators
IPC: C02F5/08
Filed: 1930-08-07
Abstract: 358,184. Preventing incrustation. BARTON, J. F. and BARTON, G. BUTLER-, Myton Place, Hull. Aug. 7,1930, No. 23684. [Class 123 (i).] Incrustation in steam boilers, economizers or radiators is prevented by the use of briquettes or blocks containing tannin, obtained from acacia products such as quebracho extract, intimately mixed with zinc, with or without graphite and asphaltum. Specification 7398/15, [Class 123 (i), Liquid-level regulating &c.], is referred to.
Patent GB-388420-A (GB)
Title: Improvements in and relating to bed settees and like convertible furniture
IPC: A47C17/22
Filed: 1931-08-24
Abstract: 388,420. Bed-settees. THOMAS, J. R., 3601, South Racine Avenue, Chicago, U.S.A. Aug. 24, 1931, No. 23782. [Class 52 (ii).] A bed-settee comprises a stationary back, top and bottom seat sections and a back section and in moving the sections into alignment to form a bed the top seat section is overturned upon linkwork into a position behind the back section. The back section 8 and bottom seat section 7 are joined by links 11 and the former moves in curved guide rails 31<1>. The top seat section 9 is joined to the framework of the settee by pivoted double links 22, 19, 25, a spring 30 and stops 24, 28 controlling the unfolding motion, and is also joined to the back section 8 by links 22, 18 and links 15. To unfold the settee, the front cover 17 is lifted and the sections 7, 8 slid out, the top seat section 9 being overturned by the interconnected linkwork to a position in alignment with the other sections. A mattress pad 35 and folding leg 34 are also included. In a modification (not shown), the upholstered back of the settee is loose and distended in the folded position by the abutting back section. A foldable leg linked to the section frame and a leaf spring to assist the opening and closing movements are also incorporated.
Patent GB-695527-A (GB)
Title: Improvements in or relating to luminescent materials
IPC: C09K11/08
Filed: 1951-10-12
Abstract: 695,527. Luminescent materials. PHILIPS S ELECTRICAL INDUSTRIES, Ltd. Oct. 12, 1951 [Oct. 17, 1950], No. 23825/51. Class 39(i) A luminescent material which may be excited by short-wave ultra-violet rays, X-rays or electrons comprises a fired reaction silicate product consisting of zinc and/or beryllium silicate and at least one of the metals aluminium and gallium. The material preferably has a phenakite structure and comprises from 1 to 300 atoms of aluminium and/or gallium per 1000 atoms of zinc and/or beryllium. The heating may be carried out in an oxidizing or in a reducing atmosphere.
Patent GB-726155-A (GB)
Title: Improvements relating to vacuum arc melting of high melting point metallic materials
IPC: C22B9/04
Filed: 1953-08-28
Abstract: 726,155. Depositing metal by fusion; casting processes. METRO-CUTANIT, Ltd. Aug. 28, 1953 [March 20, 1953], No. 23840/53. Classes 83 (1) and 83 (4). A continuous bar for producing ingots by melting the bar. in an arc struck in a vacuum between the bar and a mould comprises individual rods of compressed metallic powder of smaller cross-section than the bar arranged end to end and side by side. Two side by side staggered rows of rods 3, 5, Fig. 2, have interengaging tongue - andgroove connections. These connections may be omitted when the halves of the bar are pressed together during feeding. In a modification the rods have projections and recesses as in Fig. 3, which prevent relative longitudinal displacement. The rods may be assembled inside or outside the vacuum apparatus.
Patent GB-661885-A (GB)
Title: Heating and cooling systems
IPC: F25B29/00
Filed: 1948-09-10
Abstract: 661,885. Refrigerating; heating and cooling buildings &c. MANOILESCU, M. Sept. 10, 1948 '[March 18, 1946], No. 23861/48. Classes 29 and 64(ii) . Buildings, rooms or open spaces such as roads are heated or cooled by closed flat tanks 2, 5 in the ceiling or walls or under the road surface, the tanks being filled with water through which passes a serpentine coil which is either the condenser 1 or evaporator 4 of a closed evaporating- condensing system which may include a circulating pump 7. The invention may also be applied to heating or cooling mine galleries, submarines, boats, vehicles. Suitable refrigerants are stated to be ammonia, sulphur dioxide, isobutane, ethylamine, dimethylamine or methylamine. Many sources of heat or cold both natural and artificial are mentioned. The Specification as open to inspection under Sect. 91 comprises also the subjectmatter of Specification 661,949. This subject-matter does not appear in the Specification as accepted.
Patent GB-1159711-A (GB)
Title: Improvements relating to Apparatus for Drying Ceramic Ware.
Inventor: HANCOCK WILLIAM
IPC: F26B21/00
Filed: 1966-05-27
Abstract: 1,159,711. Pottery drier. VICTORIA HEATING & VENTILATING CO. Ltd. 23 May, 1967 [27 May, 1966], No. 23904/66. Heading F4G. Apparatus for drying ceramic ware comprises a first chamber 10 in the upper part of a housing through which housing moulds 15 carrying the ware are conveyed beneath nozzles 30 in a duct 25 in step-by-step manner by a conveyer 14 from an inlet 11 to an outlet (not shown) in the same wall of the housing. The air passing from the nozzles is recirculated by flowing through a heater 21 in a second, lower chamber 20 and passing via a fan 34 through a duct 32 into the duct 25. The nozzles may be adjustable in height relative to the ware and an outlet 40 to atmosphere in the chamber 10 may have valve means therein.
Patent GB-672997-A (GB)
Title: Improvements in heat exchangers
IPC: F28F9/02
Filed: 1949-09-16
Abstract: 672,997. Gas-heating furnaces WARREN, S. F. (Industrikemiska Aktiebolaget). Sept. 16, 1949, No. 23920/49. [A Specification was laid open . to inspection under Sect. 91 of the Acts, March 17, 1950.] Class 64(i) In a heat-exchanger in which a refractory wall 4, at the top of a heat-exchange chamber formed by a vertical wall 1, forms an inlet for heating gas, and a header 2 for gas to be heated surrounds a portion of the refractory wall 4 and has tubes 3 suspended from it in the chamber, a cooling jacket 11 constitutes the support of the refractory wall 4 and has inlet and outlet connections for a cooling medium. The jacket, which is annular and L-shaped in cross-section, is connected by rings of short tubes 15, 16 to annular supply and return tubes 20, 23. The jacket may be cooled by passing through it the gas to be heated in the tubes 3, or air or gaseous fuel to be used in combustion to form the heat source.
Patent GB-1092065-A (GB)
Title: Gasoline composition
Inventor: KAUTSKY GEORGE JIRI
IPC: C10L1/30
Filed: 1965-06-04
Abstract: Gasoline compositions contain a minor amount of a detergent additive of formula <FORM:1092065/C4-C5/1> in which R1 is a C1- 3 straight-chain alky group, R2 is a C5- 22 straight-chain alkyl group, R1 and R2 total 8-23 carbon atoms, the portion of the formula designated <FORM:1092065/C4-C5/2> being derived from C9- 24 thermally cracked wax olefin mixtures, and R3 and R4, which may be the same or different, are C1- 6 alkyl groups, or hydroxyalkyl, aminoalkyl, polyaminoalkyl, heterocyclically substituted alkyl or hydroxyalkylaminoalkyl groups in which each alkyl group contains 2-6 carbon atoms, or one of R3 and R4 is a hydrogen atom, or R3 and R4 are joined together to form with the nitrogen atom a heterocyclic ring optionally containing a further nitrogen atom.  The additives are usually added to the gasoline in the form of a concentrate in a solvent, e.g. an aromatic hydrocarbon, or an alcohol, or a mixture thereof, and the final compositions may also contain antiknock agents, e.g. TML or TEL, and a light mineral lubricating oil such as petroleum spray oil.ALSO:A mixture of olefins containing 15-20 carbon atoms is hydrobrominated to give a mixture of 2-bromoalkanes, which is then reacted with hydroxyethyl ethylenediamine in the molar ratio 1:5 to give a mixture of N-hydroxyethylaminoethyl-2-aminoalkanes.  A mixture of 2-chloroalkanes derived from an olefin mixture containing 10-20 carbon atoms is reacted with ethanolamine in the molar ratio 1:2.5 to give a mixture of N-hydroxyethyl-2-aminoalkanes.