baber/WOPTO huggingface dataset:
Patent GB-980665-A (GB)
Title: Organosilicon compounds
IPC: C07F7/02
Filed: 1963-06-19
Abstract: In making organosilicon compounds or polymers by the addition reaction between Si - bonded H and an unsaturated aliphatic reactant, the catalyst used is a platinum-cyclopropane complex of the formula (PtCl2.C3H6)2. The silicon reactant containing Si-H may be inorganic or organic and mono- or poly-meric, including silanes, polysilanes, polysiloxanes, polysilcarbanes and polysilazanes, which may contain substituent halogen atoms, alkoxy, acyloxy or saturated, unsaturated or halogenated hydrocarbon radicals.  The organic reactant may also be mono- or poly-meric and can contain oxygen, halogen, nitrogen, sulphur or silicon, as well as carbon and hydrogen. Numerous examples of the reactants are given. The reaction can be effected at 0 DEG  to 200 DEG  C. and in the presence or absence of solvents. In examples, the above catalyst was used to effect reaction of (2) trichlorosilane with pentene - 1 to yield amyltrichlorosilane; (3) 1,1,3,3 - tetramethyldisiloxane with a methylvinylsiloxane copolymer to yield a transparent gel; (4) a methylhydrogensiloxane copolymer with 1,1,3,3-tetramethyl-1,3-divinyldisiloxane to yield a clear, cured gel; and (5) diphenyldivinylsilane with p-bis-(dimethylsilyl)-benzene to yield a polymer.  U.S.A. Specifications 2,823,218 and 2,970,150 are referred to.
Patent GB-751327-A (GB)
Title: Improvements in or relating to oil well derrick crown blocks
IPC: E21B19/02
Filed: 1954-08-23
Abstract: 751,327. Crown block for derricks. MOORE CORPORATION, L. C. Aug. 23, 1954 [Jan. 28, 1954], No. 24506/54. Class 78 (5). A crown block adapted for drilling a plurality of oil wells comprises a row of sheaves S on shaft 8 which shaft is adapted to be moved from a first drilling shown over a well to a second (dotted-line) position for drilling a second well, and a fast line sheave 12 also displaceable to its second (dotted-line) position so that the fast line 11 from drum 10 winds on to the sheaves in either position without the necessity of moving said drum. Two fast line sheaves 12 may be used.
Patent GB-895459-A (GB)
Title: Improvements in or relating to photographic exposure meters
IPC: G01J1/42
Filed: 1960-07-14
Abstract: 895,459. Photographic cameras. LEITZ G.m.b.H., ERNST. July 14, 1960 [July 23, 1959], No. 24533/60. Class 98(1). [Also in Group XL(b)] Camera exposure setting members are coupled to a photo-electric 'exposure meter, in which the measuring mechanism is rotatable to bring a pointer into register with a fixed index, a plurality of measuring ranges of different sensitivity being provided together with means for rotating the mechanism to permit use of the same index. The meter mechanism is attached to a plate 4 with a gear-wheel 5a releasable coupled thereto. The pointer 12 is registered with an index 10 by rotating a knob 4b and the camera exposure is set through a differential gear 7, 8. If registry cannot be achieved with the existing sensitivity, plate 4 is rotated relative to gearwheel 5, a cam 13 simultaneously operating a switch 6. The switch 6 alters the sensitivity so that rotation of pointer 12 due to rotation of plate 4 is compensated, leaving pointer 12 in the same place, but registrable with index 10.
Patent GB-824736-A (GB)
Title: Electro-hydraulic actuating devices
IPC: F15B21/08
Filed: 1957-08-02
Abstract: 824,736. Electro-hydraulic actuators. ELEKTRO-MECHANIK G.m.b.H. Aug. 2, 1957 [Aug. 6, 1956; Aug. 13, 1956], No. 24548/57. Class 69 (2). An electro-hydraulic actuator comprises hydrostatic pumps connected in parallel to the actuator motor, at least one pump being disconnectible independently of the others. In one embodiment an electric motor 12 drives pumps 10, 11 supplying liquid to extend a single-acting actuator piston 19. A valve 16 is inserted in the pressure line 13 from pump 10, which is of greater capacity than pump 11, the pressure of pump 11 being applied to a face 18 of the valve. On starting motor 12 the pressure on face 18 moves the valve to a position b against the loading of a spring 20, and both pumps supply the actuator. When piston 19 reaches the end of its stroke the pressure rises and valve 16 is moved to a position c in which the output of pump 10 passes to a reservoir through a line 17. The output of pump 11 passes to the reservoir through a leakage bore 26 in the valve and a bore 27. When the motor 12 is switched off the valve is moved by its spring to a position a in which the actuator cylinder is open to the exhaust line 17. A non- return valve 23 in the pressure line 14 of pump 11 imposes a back pressure sufficient to move valve 16 to the b position on starting the motor. In a modification leakage bore 26 is dispensed with and an exhaust line with an adjustable restriction is connected to the line 14. For a double-acting actuator a reversing valve is interposed in the supply line between valves 16, 23 and the actuator and is spring biased to a central position in which the actuator lines are blocked so that the actuator piston is retained in position, and moved by solenoids to positions for advancing and retracting the piston. With this arrangement, and the one described below, the motor 12 can be run continuously. In the modification of Fig. 3 valve 16 is dispensed with, and pumps 10, 11 discharge into lines 13, 14. A valve 32 is solenoid operated and is spring biased to a central position in which both pumps supply the actuator through a line 25. The solenoid for moving the valve to the position c for by-passing pump 10 can be energized automatically when the actuator piston reaches the end of its stroke. In all embodiments the actuator assembly is mounted in a housing which may be formed with cooling fins.
Patent GB-1150451-A (GB)
Title: Improvements in or relating to Tufting of Fabrics
Inventor: DAWSON PETER HAYWARD TRUSSLER
IPC: D05C17/02
Filed: 1965-04-12
Abstract: 1,150,451. Pile fabrics. SINGER-COBBLE Ltd. 20 May, 1966 [12 April, 1965; 10 June, 1965], Nos. 15356/65 and 24556/65. Heading D1K. Adhesive is applied to the back of a base fabric prior to tufting. A base fabric 11 from a roll 12 and a paper backed adhesive 22 from a roll 21 are fed to a heated roll 14 where the adhesive adheres to the base 11 and the paper backing is wound off; the coated base fabric then passes through a tufting machine 16, heaters 17 which cause the adhesive to bond the tufts to the base, a further adhesive layer 26 and a further backing 30 are applied and the laminate is then fed over a heated roll 19 for consolidation before being wound onto a roll 20.
Patent GB-1532189-A (GB)
Title: Fuel injection pump unit
IPC: F02M59/16
Filed: 1977-06-14
Abstract: 1532189 Fuel injection pumps GENERAL MOTORS CORP 14 June 1977 [1 July 1976] 24698/77 Headings F1A and F1B In order to smooth out the force rate of changes acting on the plunger 43 of a fuel injection pump during its delivery strokes in a cylinder 40, the plunger 43 is provided with a secondary piston 44 arranged to pump fuel from a secondary cylinder 41 to an annular supply chamber 5. Both cylinders are filled from the chamber 5 through ports 45, 46 and 48, 51 during the suction strokes of the plunger 43 and piston 44. At the start of a downward delivery stroke both secondary ports 48, 51 are closed whereby fuel in the secondary cylinder is pumped through a small bleed orifice 47 into the chamber 5. Delivery from the cylinder 40 to an injection nozzle spray tip 10 commences when the plunger 43 closes the ports 45, 46. Simultaneously a large bleed orifice 50 becomes aligned with a groove 60 in the piston 44, the groove 60 being in communication with the secondary cylinder through passages 61, 62, 63. Thus fuel flows from the secondary cylinder to the chamber 5 at an increased rate via both orifices 47, 50. Injection ends when the port 46 is uncovered by a groove 54 connected by passages 55, 56 to the cylinder 40. The plunger and piston complete their strokes against the resistance of the fuel being discharged through the small orifice 47, the large orifice 50 having been re-closed as injection ended. The edges of the grooves 54, 60 may be helical to enable angular adjustment of the plunger/piston thereby to provide quantity and timing control. In a second embodiment fuel discharge from the secondary cylinder (41') flows firstly through the small orifice (47') then through the large orifice (50'), the changeover being controlled by a valve responsive to the pressure build-up in the cylinder 40.
Patent GB-638930-A (GB)
Title: Improvements in and relating to radio and intercommunication apparatus and systems
IPC: H04M1/60
Filed: 1947-09-09
Abstract: 638,930. Loudspeaker systems. PLAWCZYK, O. Sept. 9, 1947, No. 24770. [Class 40 (iv)] In a telephone intercommunication system having a main station and one or more substations, the main station employs the audio amplifier stages of a normal radio receiver to amplify messages passing between the main station and any substation, the loud-speaker 47 serving also as the main station microphone. The main station calls a substation with a mains frequency signal applied to the substation loud-speaker 55 by throwing a key 8 to change over contacts 51 and by operating the requisite station switch 7 and calling switch 7x. The switch 7x is broken to terminate the calling signal and thereafter the direction of conversation is controlled by key 8 which in its normal and depressed positions reverses the connections of the amplifier at contacts 51. A substation -calls the main station by closing a switch 24 to operate a buzzer 53 at the main station and to light the calling station indicating lamp 6. Key 8 in its upper position closes contacts 52 and completes the circuit for the distribution of a radio programme when the radio receiver is functioning normally. When the equipment is supplied from a D.C. source, signalling is achieved by radiations from a buzzer, such as 53 included in the supply line, being amplified and fed to the wanted station.
Patent GB-798253-A (GB)
Title: Improvements in and relating to the production of diolefins
IPC: C07C5/44
Filed: 1956-08-14
Abstract: Diolefines are produced from saturated or mono-olefinic hydrocarbons by passing a mixture of the hydrocarbon with at least 0.1 mol. of iodine per mol. of hydrocarbon through a reaction zone at 300-750 DEG C., removing the effluent at a temperature not below 300 DEG  C., reducing within 1 second the rate of reaction between the diolefine and iodine, separating iodine and recovering diolefine.  The feed hydrocarbon may be an open or closed C4 or C5 chain paraffin or mono-olefine having no quaternary carbon in an open chain and not more than one in a ring.  Substituents in the starting material are preferably limited to methyl groups or groups connected by a quaternary carbon atom.  Suitable hydrocarbons are n-butane, n-pentane, isopentane, 2,3-dimethylbutane, 2- or 3-methylpentane, 2,4-dimethylpentane, 2,3,4-trimethylpentane and corresponding mono-olefines, cyclopentane, methylcyclopentane, dimethylcyclopentanes, the tri-, tetra- and penta-methylcyclopentanes containing not more than one quaternary carbon atom, 1,1,2,3,4,5 - hexamethylpentane, t-butylcyclopentane, methyl - t - butylcyclopentanes and corresponding mono - olefines.  Cyclobutenes give mostly linear products.  A mixture of a saturated compound and a mono-olefine having the same carbon skeleton is preferred.  Reaction conditions may be 400-650 DEG  C., 0.1-10 atmospheres, a partial pressure of iodine plus hydrocarbon when an inert diluent is present of 0.2-1 atmosphere, 0.01-10 seconds residence time and a mol. ratio of iodine to hydrocarbon of 0.1 : 1 to 10 : 1.  A catalyst for the decomposition of HI to H2 and I2 may be present or oxygen added to regenerate iodine.  The reduction in the reaction rate between diolefine and iodine may be accomplished by diluting the effluent with a diluent such as helium, argon, nitrogen, carbon monoxide, carbon dioxide or methane or by injecting an inert liquid such as chloro- and fluoro-substituted hydrocarbons.  Hydrogen iodide may be removed with aqueous or ethylene glycol solutions of NaOH, NH4OH, KOH, Ca(OH)2, CH3COONa, or K2CO3, organic bases alone or in solution or by reaction with ammonia or boron trifluoride.  Iodine may be removed with an aqueous solution of an alkali metal thiosulphate, arsenite, sulphite or bisulphite or sodium or potassium iodide, or by adsorption on activated alumina. Preferably hydrogen iodide and iodine are simultaneously removed by spraying into the effluent an aqueous hydrogen iodide solution containing up to 55 per cent HI. The aqueous solution formed can be cooled and recycled.  Hydrogen iodide and iodine are preferably removed within 0.01 to 0.1 second. In the examples butadiene is produced from n-butane or a mixture of n-butane and butenes. Specifications 793,135, 796,048 and 798,254 are referred to.
Patent GB-189583-A (GB)
Title: A direction indicator for use on road vehicles or for road-traffic control purposes
IPC: B60Q1/34
Filed: 1921-09-20
Abstract: 189,583. Openshaw, T., and Nuttall, J. Sept. 20, 1921. Road-traffic signals on vehicles.-A direction indicator comprises a box-lamp a with translucent windows b and a hand h on each side pivoted on a vertical shaft d and operated through suitable gearing by a lever g, .to signal both to front and rear.
Patent GB-171222-A (GB)
Title: Improvements in vapour burners for oil stoves
IPC: F23D11/44
Filed: 1920-08-28
Abstract: 171,222. Newman, W. Aug. 28, 1920. Vaporizing-apparatus.-In a portable oil stove of the " roarer " type, removable setscrews A are provided in the casting supporting the U-tube G carrying the nipple in order to facilitate the removal of carbon.
Patent GB-632418-A (GB)
Title: Improvements in cask filling devices
IPC: B67C3/30
Filed: 1947-09-11
Abstract: 632,418. Filling casks. RYDER & CO. (MANCHESTER), Ltd., T., ANDREWS, J. E., and FAWCETT, H. Sept. 11, 1947, No. 24941. Divided out of 628,581. '[Class 21] In a cask filling device comprising coaxial tubes, one for liquid and one for air, secured in the cask bunghole by an expanding resilient ring, the washer which moves downwards to compress the ring comprises two parts p, o, movable relatively to adjust the degree of expansion of the ring. The part p has a conical portion entering the ring m and is threaded to receive the part o which is acted upon by a cam and lever device n. The hand lever operating the device n opens the liquid inlet valve simultaneously with the locking of the filling device in the bunghole as described in the Specification 628,581. A set screw q locks the ports o, p after adjustment.
Patent GB-718230-A (GB)
Title: Process for the preparation of new oxytocically active compounds and preparations
Filed: 1952-10-06
Abstract: The invention comprises 3-(alkylpiperidyl-(N)-methyl)-indoles, having oxytocic activity.  They may be prepared by reacting an alkyl-piperidine with indole and formaldehyde, or by heating 3-dimethyl- or 3-diethyl-aminomethyl indole with the alkylpiperidine. The compounds may be used in the form of their salts, e.g. the hydrochloride or maleate.  In the examples: (1) 3 - (21 - methylpiperidyl - (N) - methyl) indole is prepared by adding formalin and indole to a -pipecoline in acetic acid, diluting with water and alkalizing with ammonia: similarly prepared are the 31- and 41-methyl-, 21,41-dimethyl-, 21,61-dimethyl-, 21,41,61 - trimethyl -, 21 - ethyl -, 21 - n - propyl-, 41-ethyl-, and the 21-methyl-51-ethyl-piperidyl-(N)-methyl-indoles.ALSO:Preparations having oxtytocic activity comprise 3 - (alkylpiperidyl - (N) -methyl)-indoles, preferably in the form of their salts, e.g. the hydrochloride or maleate.  The compounds may be made into tablets, using, as fillers, lactose, amylum, talcum or magnesium stearate. The salts may also be dissolved in water and placed in ampoules which, with the contents, are sterilized for injection purposes. Specified alkyl substituents in the piperidyl ring are 21-, 31- and 41- methyl, 21- and 41- ethyl, 21,- 41- dimethyl, 21-, 61- dimethyl, 21-, 41-, 61-trimethyl, 21-n-propyl and 21-methyl-51-ethyl.
Patent GB-1184467-A (GB)
Title: Polyurethane Coating Composition
IPC: C08G18/10
Filed: 1967-05-31
Abstract: 1,184,467. Polyurethane coating. INTERNATIONAL BUSINESS MACHINES CORP. 31 May, 1967 [22 June, 1966], No. 25056/67. Heading B2E. [Also in Divisions B8 and C3] A synthetic backing material, e.g. of polyester, polyimide or polyamide film, suitably in the form of an endless belt, may be coated with a polyurethane composition comprising 10 to 60% by weight of a polyurethane prepolymer containing terminal isocyanate groups, from 0.5 to 6% by weight of colloidal-sized silica, from 0 to 0.03% by weght of an adhesion promoter agent, from 0 to 6% by weight of pigment, and a chain extender for the prepolymer in an amount of 11 to 13% by weight of the prepolymer, the total solids content of the composition being 25 to 75% by weight and the remainder of the composition being organic solvent. The coating composition is suitably applied to a perforated backing material and simultaneously a vacuum is applied to the surface of the backing material opposite to that which is being coated to prevent clogging of the perforations in the backing material and to catch excess coating composition, and the coated is cured for 2 hours at 175‹F.
Patent GB-1128425-A (GB)
Title: Improvements in or relating to electrical terminals
Inventor: ROSS MICHAEL THOMAS
IPC: H01R4/30
Filed: 1967-05-31
Abstract: 1,128,425. Binding posts. BELLING & LEE Ltd. 31 May, 1967, No. 25111/67. Heading H2E. In an electrical terminal comprising a screw 1 inserted in a threaded hole 4 passing through a portion of the terminal body 5, the intermediate portion 10 of the screw remote from its head has its diameter 11 reduced to not more than the root diameter 12 of the threaded portion.3. The axial length 13 of the reduced portion of the screw is not less than the axial length 14 of the terminal portion through which the hole 4 passes, so that the screw cannot be completely withdrawn when simply turned by a screwdriver. The final threaded portion 15 of the screw prevents its inadvertent complete withdrawal when it is loosened to insert or remove a conductor in hole 7. In alternative embodiments the screw is provided with plain or cup washers between its head and the terminal body to retain conductors in position around the screw. In a further embodiment the screw may be used directly in a hollow terminal bar which is arranged to receive conductors in its hollow part.
Patent GB-747962-A (GB)
Title: Improvements in or relating to electrodes for electrolytic devices
IPC: H01M4/74
Filed: 1951-10-26
Abstract: An electrode for a battery or other electrolytic device consists of a mat of unwoven nonconducting fibres which are individually coated with a smooth impervious metal layer, the fibres being bonded together by fusion of the metal layers.  The fibres may be of glass, quartz, cellulose, rayon or other synthetic product and the metal coating of aluminium, magnesium, iron or nickel.  The fibres may be felted before or after the coating operation and are finally pressed and heated to cause the metal layers to become welded or sintered together.  In one method of making an electrode for an electrolytic condenser filaments of quartz, flint glass, boro-silicate glass or glass made from oxides of silicon, boron, magnesium and aluminium are passed singly or in bundles through a bath of the molten metal, excess metal being removed by a blast of non-oxidising gas or by centrifugal force or an electrostatic field.  In another method the felted fibres are coated with aluminium deposited from its vapour in a vacuum. Aluminium may also be sprayed onto the mats or the fibres may be coated with metal powder which is then fused by heat.  Iron and nickel may be deposited from their carbonyls, the coated fibres being then subjected to heat and pressure to bond the metal coatings together.
Patent GB-1511737-A (GB)
Title: Apparatus for use in investigating specimens
IPC: B01L99/00
Filed: 1975-06-11
Abstract: 1511737 Automatic analysis; specimen temperature control SOCIAL SERVICES SECRETARY OF STATE FOR 3 June 1976 [11 June 1975 20 Aug 1975] 25118/75 and 34676/75 Heading G1B Apparatus for investigating specimens comprises, Fig. 1, substantially horizontal turn-table 6 having a central rotational axis 3, motor 14 for stepping turn-table 6 and the specimen vessels it carries about the rotational axis, the vessels being supported so that they extend downwardly below the underside of the turn-table, an enclosure 52 for the turn-table providing a space bounded laterally and at the bottom by the enclosure wall, the vessels extending into the space, means 60 for changing the temperature of the air in the space and means positioned within the space and in the embodiment shown comprising vane 57 rotatable on shaft 3 by electric motor 4 for circulating air between the temperature changing means and the vessels within the space, the temperature changing means being provided with a control device (not shown) for maintaining the temperature of the vessels substantially at a predetermined value. The temperature changing means may comprise an air heater and/or a refrigerating device. The apparatus may include at least one liquid dispenser, Fig. 2, mounted adjacent the turn-table and comprising a tubular body having inlet 104, dispensing tip 110, means for dispensing liquid in predetermined quantities and temperature control means which in the embodiment shown comprises heating coil 106 wound around the tubular body, heat-insulative jacket 107 and thermistor 111 for controlling the amount of current supplied to the coil 106. In operation of the apparatus, using one dispenser, unheated serum sample is sucked into the tip 110 then the serum is dispensed together with a quantity of pre-heated diluent. Using another dispenser, a quantity of heated reagent and a quantity of heated diluent are dispensed.
Patent GB-202535-A (GB)
Title: Improvements in laundry driers
IPC: D06F58/10
Filed: 1922-09-18
Abstract: 202,535. Braley, C. L. Sept. 18, 1922. Disinfecting-chambers.-In laundry drying apparatus, hot air is forced upwardly through clothes movable freely in a drying-chamber 1 and the delivery of the blast is controlled by a valve 19 so as to tumble the clothes first in one direction and then in another. Fresh cold air, a disinfecting gas, ozone, or a deodorizing or perfuming agent may be admitted through valves 16, 18 and mix with the hot air if desired.
Patent GB-150707-A (GB)
Title: Improvements in automatic balance weighing apparatus
IPC: G01G23/00
Filed: 1920-09-01
Abstract: 150,707. Aktiebolaget Original- Odhner. Sept. 1, 1919, [Convention date]. Pendulum-weight apparatus. - Relates to automatic weighing- apparatus of the kind in which the goods receiver and a counterweight act on flexible members wound in opposite directions on cams attached to a shaft. The invention consists in mounting the shaft in ball or roller bearings to minimise friction and in arranging the apparatus so that the shaft may make a complete revolution or more whereby the whole periphery of an indicating drum mounted on the shaft may be used for carrying the graduations. The goods pan 2 is mounted on a vertically guided rod 3 and is supported by a pair of flexible bands 9 passing round cylindrical cams 7 on a shaft 6. A pair of counterweights 11 are suspended by flexible bands 10 which wind around involute cams 8 when the shaft revolves, and thus balance the goods on the pan. The cylindrical cams 7 are arranged after the manner of a screw thread to prevent the bands from winding on themselves at the completion of a revolution.