baber/WOPTO huggingface dataset:
Patent GB-1055926-A (GB)
Title: A novel class of steroid compounds
IPC: C07J9/00
Filed: 1964-03-04
Abstract: Novel steroid compounds of the formulae <FORM:1055926/C2/1> wherein St represents the substituted or unsubstituted androstane configuration, R3 represents a hydrogen atom and R4 represents an alkyl aryl, or aralkyl group or R3 and R4 each represent an alkyl, aryl, or aralkyl group or together with the nitrogen atom represent a cyclic ring structure incorporating these three groups and optionally substituted within the ring structure, R represents a hydrogen atom or the residue of a carboxylic acid and Y represents the oxygen atom of a keto group or two hydrogen atoms are obtained in a process in which a 21,22-dicarboxylic pregnane of the general formula <FORM:1055926/C2/2> is subjected to the action of a chlorinating agent to form the corresponding 21,22-di-(acid chloride) derivative which is then reacted with an amine of the general formula <FORM:1055926/C2/3> to form the corresponding diamide which is then subjected to the action of an alkali metal aluminium hydride to yield a desired compound which is optionally thereafter acylated at the 3-position and/or oxidized at the 11-position and/or salified as desired.  Pharmaceutical compositions having vasodilative and spasmolytic activity are administered orally, parenterally or rectally.
Patent GB-1129978-A (GB)
Title: Dolomite brick and method of making it
IPC: C04B35/03
Filed: 1966-03-02
Abstract: 1,129,978. Dolomite brick. UNITED STATES STEEL CORP. 2 March, 1966 [3 March, 1965], No. 9216/66. Headings C1A and C1J. A dead-burned dolomite brick is made by calcining dolomite at 1800-2500 F., mixing 1-5% by wt. of the mixture of strontium oxide with the dolomite, briquetting the mixture and firing the briquettes at 3100 F. or higher. The SrO, or a precursor thereof such as SrCO 3 , may be added before calcining or previously calcined SrO may be used. The briquettes are preferably fired at 3200-3300 F. in a rotary kiln and have a maximum iron oxide content of 1% by wt.
Patent GB-1502715-A (GB)
Title: Batching system
IPC: G01G19/38
Filed: 1976-03-08
Abstract: 1502715 Automatic control MANGOOD CORP 8 March 1976 [10 March 1975] 9231/76 Heading G3N A cyclic batching system is controlled by a microprocessor associated with a PROM wherein is stored the permanent parts of a programme for the batching process and a RAM for the changeable ingredient parameters of formula. The load cells are interfaced to the micropressor through an A/D converter. A control console is provided whereby a formula can be called up or modified.
Patent GB-309075-A (GB)
Title: Improvements in evaporator elements of refrigerating apparatus
IPC: F25D11/02
Filed: 1929-03-22
Abstract: 309,075. Electrolux, Ltd., (Assignees of Platen-Munters Refrigerating System Aktieholag). April 4, 1928, [Convention date]. Refrigerating, absorption machines for; ice-making.-In a continuous-cycle inert gas absorption apparatus provided with a low temperature evaporator for icemaking and a higher temperature evaporator for cooling a. cabinet, the ice-making evaporator is formed as a coil and provided with a jacket to insulate it from the other evaporator, which has internal plates. In the apparatus shown, the low-temperature evaporator is formed by a coil 10 extended from the inert gas pipe 21, and is supplied with liquefied refrigerant through a pipe 20. It is surrounded by a box-like casing 25 of iron, copper or aluminium in heat-conducting relation to the coil 10. and one or more outer aluminium &c. casings 28 are spaced from the casing 25 and from one another, as by depressions 29, 30, to provide insulating air jackets. The ice trays 27 are accommodated in the inner casing 25. The unevaporated refrigerant flows with the gas-mixture through a pipe 31 to the other evaporator 11, which is fitted with internal baffles 32 having ribs 33 to form pools of liquid, and with external gills 35 set vertically to promote an upward flow of air around it. The ice-making evaporator is preferably located as shown above the other evaporator in the upper part of a cabinet 13. The gas mixture flows out of the main evaporator to a gas heat exchanger 23.
Patent GB-1426524-A (GB)
Title: Process for crystallizing polycarbonates and products obtained
IPC: C08K13/02
Filed: 1973-02-26
Abstract: 1426524 Crystallizing polycarbonates UNIBRA SA 26 Feb 1973 [28 Feb 1972 27 July 1972] 9386/73 Heading C3R A process for crystallizing a polycarbonate comprises adding a finely divided nucleating agent selected from salts of carbonic or carboxylic acids to the polycarbonate together with a plasticizing agent compatible with the polycarbonate and crystallizing the mixture thus obtained at a temperature higher than the vitreous transition temperature, i.e. the minimum temperature at which the polymer will crystallize from the mixture. Preferably from 0À01 to 20% by weight of the nucleating agent and from 1 to 50% by weight of the plasticizer are used, the percentages based on the total weight of the composition. The examples describe crystallizing polycarbonates derived from bisphenol A. bis(hydroxyphenyl)methane or bis(hydroxyphenyl)sulphide using various nucleating agents (e.g. CaCO 3 , Na 2 CO 3  or sodium benzoate) and plasticizing agents (e.g. esters of trimellitic acid, tritolylphosphate or n-butylbenzylphthalate). Glass fibres may also be present.
Patent GB-1387453-A (GB)
Title: Electrostatic electro-acoustic transducer
IPC: H04R19/01
Filed: 1972-02-29
Abstract: 1387453 Capacitor transducers MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 29 Feb 1972 [11 March 1971] 9397/72 Heading H4J An electrostatic electro-acoustic transducer comprising a pair of spaced, fixed electrodes 4, 4<SP>1</SP> (Figs. 1, 2), each with a multiplicity of openings 5, has a vibratable film electret 1 with a conductive layer 2 on one side held between the fixed electrode 4, 4<SP>1</SP>. The film electret 1 is preferably a plastics resin, e.g. a polymer and is coated with conductive paint or has an evaporated layer of aluminium or silver. Electrodes 4, 4<SP>1</SP> respectively are connected with the secondary of a transformer T. In one circuit arrangement (Fig. 1), capacitors C 1 , C 2  are provided for balance purposes and a resistor R controls higher harmonics. A second circuit arrangement (Fig. 2, not shown) has a push-pull output transformer, an intermediate terminal of the secondary winding being connected to the conductive layer 2 while end terminals of the secondary winding are connected with the fixed electrodes 4, 4<SP>1</SP>. A loud-speaker (Fig. 4) has an annular frame 6 of metal or plastics to which the film electret 1 is attached by fusing, supersonic jointing or using a polymer bonding agent. Rims 7, 7<SP>1</SP> of plastics material apply tension to the electret 1 and the fixed electrodes 4, 4<SP>1</SP> are secured to them. A nut 9 and bolt 8 secure the rims 7, 7<SP>1</SP> together. Lead wires 12, 13 are connected to the electrodes 4, 4<SP>1</SP> by conductive paint 10, 10<SP>1</SP>. The conductive layer 2 is in contact with a lead wire 11. The resistor R (Fig. 1, also Fig. 2, not shown), may be constituted by the contact resistance between layer 2 and lead wire 11.
Patent GB-564183-A (GB)
Title: Improvements in pipe couplings
IPC: F16L19/065
Filed: 1943-06-12
Abstract: 564,183. Pipe joints. ENSTONE & CO. (SUCCESSORS), Ltd., T. C., and CROOK, W. A. June 12, 1943, No. 9504. [Class 99 (i)] In a stuffing-box joint the sealing ring 12 is retained in the gland nut 15 by means such as a split spring ring 18 which releases it on the application of a predetermined force. The spring ring is of elliptical form engaging at its minor axis a rounded flange on the seating ring and at its major axis a recess 20 in the nut.
Patent GB-146644-A (GB)
Title: Improvements in or relating to apparatus for the employment of water for power purposes
IPC: F03B13/18
Filed: 1919-04-14
Abstract: 146,644. Davis, E. A. April 14, 1919. Buoyancy motors.-A floating buoy a moves up and down in a tank e and is attached at the top and bottom to ropes &c. b which pass over guidepulleys c, h, i and rotate a drum f on the shaft g. The water inlet and outlet openings j, k are governed by a valve l operated by tappets m, n on the ropes. There is an auxiliary outlet o governed by a valve q on a weighted lever p. As the buoy falls, the upper rope b is kept taut and pulls up the weighted slide u by the pulley t and holds the reversing-lever s in its upper position, and as the buoy rises, the rope b slackens and allows the lever s to fall, so that the shaft g is always rotated in the same direction. The slide u may have a second pulley similar to the pulley t for the lower rope. On reaching its top position, the buoy strikes the lever p, opening the valve q so that the water and buoy fall rapidly and ensure the sudden shifting of the lever s.
Patent GB-369409-A (GB)
Title: Improvements relating to the production of variegated pattern knitted fabrics on flat bed type knitting machines
IPC: D04B1/10
Filed: 1931-03-28
Abstract: 369,409. Knitting. HOLLAND, W. H., White Barn Cottage, Alderley Edge, and BROOKLANDS KNITTING INDUSTRY, Ltd., Oakfield Road, Altrincham, both in Cheshire. March 28, 1931, No. 9508. [Class 74 (ii).] Yarn divided by markings into lengths, each more than sufficient to form one row of loops on a flat bed knitting-machine and having in each length variations in colour, shade or thickness is used to produce variegated patterns by varying the position of the length markings beyond the edge of the fabric. The overhanging ends are subsequently cut off.
Patent GB-1335168-A (GB)
Title: Steam cooking apparatus and method
IPC: A47J27/16
Filed: 1972-03-01
Abstract: 1335168 Steam-cooking apparatus and method BEATRICE FOODS CO 1 March 1972 [1 March 1971] 9550/72 Heading A4D A steam-cooking device comprises a chamber 110 an inlet passage 114 connected to a source of steam (not shown), a free-venting outlet passage from said chamber through which air and condensate is removed, temperature sensing means 122 in the outlet and flow controlling means 124 responsive to the sensing means 122 to stop flow of steam. Heating means 134, provided to superheat the steam, is controlled by the sensing means and a double-throw thermostat 126 allows the heating means to be switched on only after the steam flow is stopped. A timer switch may replace the thermostat or be used in conjunction. A fan or blower 128 circulates the steam in the chamber 110. The door (112d) Fig. 5 (not shown) of the chamber has a low pressure seal (152). In a further embodiment, the steam source may comprise a free-venting boiler (16B) Fig. 2 (not shown) and a source of variable heat (16H) regulated by the temperature sensing means (22). In another embodiment, the steam source is a free-venting, flash-type steam-generator comprising a heated chamber (16F) Fig. 3 (not shown) and a variable water source (16W) controlled by the sensing means (22).
Patent GB-932315-A (GB)
Title: Improvements in or relating to fastening devices
IPC: A47C7/42
Filed: 1961-03-15
Abstract: 932,315. Furniture joints. UNITED-CARR FASTENER CORPORATION. March 15, 1961 [March 17, 1960], No. 9555/61. Class 52 (2). [Also in Group XXV] A fastening device for securing a rod-like article 12 in an opening 16 in a support 14 is formed of sheet metal and comprises a plate-like base 22 having an aperture 34, the edge of which is shaped to form a series of inwardly extending teeth 30 for frictionally gripping the article 12 as it is inserted into the aperture, a plurality of resilient legs 24 extending integrally from the base for insertion into the opening 16 in the support 14, each leg 24 having a projection 36 at its free end extending laterally outwardly therefrom and adapted to be forced, into the side wall of the opening when the article is inserted. An annular rim 26 extends from the base 22 in the same direction as the legs 24. Four integral teeth 30 having arcuate edges 32 form portions of the edge of the aperture 34. As shown in Fig. 1, the article 12 is one of a pair of members which support the back member 14 of a chair.
Patent GB-214627-A (GB)
Title: Improvements in electric bells
IPC: G10K1/063
Filed: 1924-04-15
Abstract: 214,627. Richard, J. M. A., and Gilbert, L. April 17, 1923, [Convention date]. Bell - operating mechanism, electric. -In a bell operated from an ordinary alternating - current lighting &c. circuit by means of a transformer, the secondary I of the transformer is wound eccentrically to the primary E so that the secondary is traversed both by the magnetic core G and by the magnetic circuit of the bell which comprises a U-shaped soft-iron member K and an armature N. In the construction shown, which is particularly suitable for bells having strong controlling-springs, the passages of the primary and secondary windings are parallel, but, in the preferred construction, the passage of the eccentric secondary loop is at right angles to the passage of the primary, in which case the magnetic circuit of the bell is not influenced by the primary magnetic circuit of the transformer.
Patent GB-1454713-A (GB)
Title: Electric lamps
IPC: H01J5/34
Filed: 1975-03-07
Abstract: 1454713 Glass to metal seals PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 7 March 1975 [11 March 1974] 9574/75 Heading C1M [Also in Division H1] An electric lamp has a hermetically sealed gas filled hard-glass or vitreous silica envelope into which is sealed a current lead in member comprising a Mo foil joined to a W current supply lead, which extends into the envelope, by means of iron or an alloy of at least 50% Fe with one or more of Sc, Ti, V, Cr, Mn, Co, Ni and Cu with no more than 3% in total of impurities (e.g. C, N, S, Mo, Ta, Nb and A1). The Mo and W may each contain small quantities of dopants. The joining material (e.g. 18% Cr, 8% Ni stainless steel) is not attached by gas filling components (e.g. one or more of Hg, Cd and Zn with optional additions of halogens or halides of such elements as Ca, Na, Li, T1 and rare earth elements) which may be used in gas discharge lamps. The preferred seal is a pinch seal.
Patent GB-454558-A (GB)
Title: Improvements in or relating to a process of and apparatus for separating water contained in a liquid
IPC: C02F1/14
Filed: 1935-03-27
Abstract: <PICT:0454558/III/1> <PICT:0454558/III/2> In the separation of water from aqueous liquids by evaporation of the liquid in a countercurrent of air or gas, condensation of the vapour and return of the gas to the evaporator, evaporation is effected at substantially atmospheric pressure and at a low temperature, for example 60 DEG  C. or below, and the circulation of the gas is effected solely by heating and cooling.  The system is described as applied to the recovery of pure water from sea water and the separation of alcohol and water.  In the apparatus shown in Fig. 1 for evaporating sea-water by heat derived from the sun, the sea-water flows from a drum 1 over a series of trays 4 in an inclined compartment having a glass front 6 and a heat insulated back <PICT:0454558/III/3> 5, and the vapour and circulating air pass to a condenser chamber 14 screened from the sun by the back 5.  Concentrated sea water flows down into a collector 11 and distilled water to a vessel 16. In modifications the sea water is allowed to drop from notched edges of trays of clay; or flows down wick-like fabric plaited over horizontal bars.  The concentrated salt-water may be returned to the upper tank for further treatment until salt crystallizes out on the trays.  Apparatus for removing water from alcohol comprises a packed tower 30, Fig. 5, down which the liquid mixture is sprayed from a pipe 31, a tubular condenser 35 and a collecting vessel 39 below the tower provided with a jacket 40 for low temperature heating.  Air or carbon dioxide, nitrogen or hydrogen circulates between the tower and the condenser, and alcohol containing little water is withdrawn from the condenser at 38. Alcohol containing a large proportion of water is supplied through a pipe 44 to the vessel 39, and the vapours evolved in the vessel are rectified by the stronger solution trickling down the tower. Liquid weak in alcohol is continuously withdrawn from the vessel by a pipe 43.  A column-still for alcohol-water mixtures comprises a series of superposed evaporator vessels 50, Fig. 6, connected by pipes 53, 54 for the flow of air and vapour with superposed condensers 55.  The mixture is supplied by pipe 60 to one of the vessels 50 and trickles over trays 52 therein and through a small aperture 56 in a separating partition to the vessel below. Condensate from the condenser of one vessel is passed by pipe 57 to the vessel next above until eventually alcohol is delivered at 58 from the uppermost condenser.  The evaporator vessels are heat jacketed and the condensers are cooled by water, which may be artificially cooled by a refrigerating plant. Another column still is described in which the condensers on the right are connected by cross pipes with those on the left so that the gas current is carried from one condenser to the next above on the opposite side.
Patent GB-214629-A (GB)
Title: Manufacture of dyestuffs capable of being chromed
IPC: C09B45/16
Filed: 1924-04-15
Abstract: The dyestuffs prepared by coupling the nitrated diazo compound of 1-amino-2-oxynaphthalene-4-sulphonic acid with a naphthol are treated with reducing-agents so as to reduce the nitro group; the products have superior solubility, even in calcareous water, to the parent dyestuffs and dye wool in fast grey to black shades when chromed.  As reducing agents are mentioned alkali and alkaline earth sulphides, sulphydrates, or polysulphides, and ferrous hydroxide or carbonate; such agents are preferred as do not necessitate isolation of the parent dyestuffs or the removal of metals subsequent to the reduction.  Examples are given in p  which the pastes of the dyestuffs from the nitro-diazo compound and a - or b -naphthol are reduced by means of concentrated sodium sulphide, polysulphide, or sulphydrate solutions; the products are isolated by pouring into water, neutralizing, and salting out.
Patent GB-755268-A (GB)
Title: Improvements relating to fuel injection pumps for internal combustion engines
IPC: F02D1/00
Filed: 1954-04-01
Abstract: 755,268. Pneumatic governors. SIMMS MOTOR UNITS, Ltd., and MIRACKI, Z. S. March 28, 1955 [April 1, 1954], No. 9628/54. Class 57 The control rod 1 of a multi-plunger fuel-injection pump is connected for lost motion to the diaphragm 8 of a governor and through a lever 11 to a yielding control means 2. The latter preferably consists of an adjustable tension spring with an extension 21 anchored to the stem of a pin 19 which connects the arm 11 to a stud 15 having a hole larger than the pin so as to provide the lost motion. The stud 15 passes through the diaphragm 8 and supports a valve member 25 which places ports 28 and 29 in communication when the diaphragm 8 is in the position corresponding to idle running of the engine, the ports 28, 29 being connected to opposite sides of the throttle to prevent flutter. To alter the position at which the valve 25 becomes operative, a block 24 is displaced axially by rotation of a member (not shown) having an eccentric pin in engagement with a groove 32.
Patent GB-819430-A (GB)
Title: Improvements in or relating to devices for testing rotary machines, electric motors,generators and the like
Inventor: PERRETT LESLIE ARTHUR
IPC: G01R31/34
Filed: 1956-03-28
Abstract: 819,430. Windings for dynamo-electric machines. ANSTEE & WARE Ltd. March 28, 1957 [March 28, 1956; March 4, 1957], Nos. 9707/56 and 7157/57. Class 35. [Also in Group XXXVI]  Slips, eccentricity and defective conductors of the rotors of electrical machinery are measured by means of extra conductors mounted in the stators and connected either to an oscilloscope to observe the waveform or to a device which compares the voltage produced by a pair of such conductors to indicate eccentricity. As shown, the conductor 3 is carried in a hole drilled in the wedge 16 holding the stator winding 10 in position. Four such conductors mounted at 90 degrees may be connected in pairs to the voltage compensation circuit shown in Fig. 2, when meter 32 indicates eccentricity. Fig. 3 shows an oscilloscope trace in which the fundamental indicates the rotor energizing frequency and ripple the voltage produced by the rotor conductors. Movement of the ripple relative to the fundamental indicates slip, flattening of the fundamental indicates magnetic saturation and the absence of a ripple indicates a discontinuity in their rotor circuit or deformaof the rotor conductors.
Patent GB-737449-A (GB)
Title: Improvements in or relating to conveyors
IPC: B65G17/20
Filed: 1951-10-29
Abstract: 737,449. Collectors. KING, D. M. Oct. 23, 1952 [Oct. 29, 1951; May 2, 1952], Nos. 9722/54 and 9723/54. Divided out of 737,377, [Group XXX]. Class 38 (1). [Also in Group XXX] An overhead conveyer track (see Group XXX) includes an insulator 18 carried by sleeves 20 and provided with conductor bars 19 for engagement with contacts on the conveyer trollies to supply current to elements associated with or supported by the conveyer chain. Specification 594,896 is referred to.
Patent GB-656896-A (GB)
Title: Improvements in or relating to heat treating furnace and method of use
IPC: C21D9/663
Filed: 1948-04-07
Abstract: 656,896. Heat-treatment furnaces. DOW, J. A. April 7, 1948, No. 9733. Convention date, May 6, 1947. [Class 51(ii)] A heat-treatment furnace of the forced convection type is heated by radiant tubes 28 disposed down two side of the heating chamber 16, heavy heat-storing slabs 31 of a material of high specific heat and good conductivity, e.g. carborundum being set in the walls adjacent the tubes in order to assist in the rapid heating of the 'circulated atmosphere gases when the cold work is first charged. In a modification, Figs. 3 and 4 (not shown), the radiant tubes are enclosed by squarestacks of the heatabsorbing material open at the top and bottom so that atmosphere gases may circulate therein. A further modification, Fig. 5, comprises a cylindrical chamber 41 having a removable cover 42 and enclosing a cylindrical work container 46, a cylindrical heat-absorbing element 48 and electric heating elements 49 disposed therein. In a final modification, Fig. 6 (not shown), a further inner concentric heatabsorbing element encloses the heating elements 49 in an annular stack through and around which the atmosphere gases are circulated. With a heat-absorbing element roughly equal in weight to the work treated the temperature gradient in the work, after an initial rise, falls to a minimum about half-way through the heating period and remains substantially constant, the heating elements can be operated at an appreciably lower temperature than in the normal furnace, and the heat equalizing or soaking period is considerably reduced giving a more even processing of the work.