baber/WOPTO huggingface dataset:
Patent GB-832676-A (GB)
Title: Improvements relating to sealing apparatus
IPC: F01D25/18
Filed: 1958-11-13
Abstract: 832,676. Stuffing-box substitutes. GARRETT CORPORATION. Nov. 13, 1958 [Nov. 13, 1957], No. 36573/58. Class 122 (5). Means for preventing the leakage of liquid between a shaft 10 and the bore through which it projects comprises a radial flange 34 on the shaft adjacent one end of the bore and means whereby rotation of the shaft covers liquid leaking axially outwardly to be withdrawn to an inner region of the flange and centrifuged radially outwardly by the flange. As shown applied to a turbine-driven compressor for preventing the leakage of oil fed to bearings 15, the flange 34 is integrally connected to a sleeve 24 secured on the shaft 10 in close running contact with a bush 26 of softer material than the sleeve and mounted in an end wall 22 of the bearing housing 16. A shallow groove 30 is formed in the surface of the sleeve and is connected by radial and axial bores 31, 32 to radial bores 33 in the flange 34. In operation, rotation of the flange produces a suction effect in the groove 30 and thereby withdraws oil leaking axially outwardly and, by the centrifugal action of the flange, returns it to the interior of the housing. The sleeve is also provided with labyrinth grooves 25. Two identical sealing arrangements are provided at opposite ends of the shaft, and the interior of the housing 16 is vented to the turbine end by passageways in the shaft. In a modification (Fig. 2, not shown), the groove 30 and bores 31, 32, 33 for producing the suction effect are replaced by a screw-thread formed in the surface of the sleeve 24 and a radial flange is provided to act as an oil flinger. Specification 812,186 is referred to.
Patent GB-1079175-A (GB)
Title: Derivatives of fluorochlorobenzenes
Inventor: FIELDING HAROLD CROSBIE
IPC: C07C37/66
Filed: 1963-09-19
Abstract: Chlorine atoms in fluorochlorobenzenes are replaced with hydroxyl, amino or alkylamino groups in a process comprising heating a fluorochlorobenzene with respectively water, ammonia or a primary or secondary saturated aliphatic amine in the presence of a copper salt or oxide.  The examples relate to the preparation of pentafluoroaniline, ethylpentafluoroaniline and perfluorophenol.
Patent GB-1209685-A (GB)
Title: Device for soldering and removing molten solder
Inventor: FORTUNE WILLIAM SAMUEL
IPC: B23K3/047
Filed: 1968-08-02
Abstract: 1,209,685. Soldering. W. S. FORTUNE. 2 Aug., 1968 [24 Oct., 1967], No. 36952/68. Heading B3R. [Also in Division F1]  A solder-desolder tool comprises a tubular body 10, Fig. 1, having a hollow forward tip 14, e.g. of plastics material, a piston 18 slidable in the body 10, energy storage means 26 associated with the piston 18, latching means 32 for holding the piston in a position with the energy storage means charged and an electrically-heated soldering bit 16 carried by the piston to extend through the tip 14 when the piston is in a forward position. The body 10 is cylindrical and carries at its rear end a bushing 22 through which extends the plunger rod 20 attached to the piston 18. The energy storage means in the form of a tension spring 26 is secured at its ends to the piston 18 and bushing 22 and is held in its stretched position with the piston forward by a latch 28, in the bushing 22, having a bore 32 through which the plunger rod passes and the lower edge of which bore is lockably engageable with a shoulder 33 on the rod. A spring 36 urges the latch 28 upwardly and a weaker spring 40 around the latch 28 urges a trigger button 38 upwardly. The piston comprises a body 50, Fig. 3, of aluminium carrying a rubber &c. sealing ring 82 and beryllium copper fingers 48 to contact the inside of the cylinder 10. The body carries an outer conductive casing 86 of the bit 16, electroplated at 96, and an insulated bushing 92 which supports a spring-urged carbon rod 100 engaging the inner side of the tip of the casing 86. The plunger rod 20 is connected to one end of the spring 110 urging the carbon rod. Current from one side of the secondary of a transformer supplied through a silicon-controlled rectifier is supplied to the cylinder 10 and thus via the fingers 48 to the casing 86 and from the other side to a metallic member 38 in the button 38 to the latching member and via the rod 20 to the carbon rod. In use the piston is cocked by pressing the head 24 on the rod 20, the trigger button 38 is pressed to supply current which heats the soldering bit and then the button is pressed further to release the piston which returns to create a vacuum at the tip 14. In a modification a hollow cocking plunger is provided about the plunger rod from the piston so that the piston may be cocked by this plunger which then is returned to a position remote from the piston plunger, so that when the piston is uncocked flyback of the piston plunger occurs within the cocking plunger. The outer casing of the bit 16 may be of stainless steel and retains a plated copper tip and the carbon element may be tapered and held in an inner conductor. The device may be used in soldering and desoldering printed circuit connections.
Patent GB-1159131-A (GB)
Title: Improvements in or relating to Vertical Deflection Circuit Arrangements for Television Receivers
IPC: H03K4/71
Filed: 1966-08-18
Abstract: 1,159,131. Transistor sawtooth circuits. TELEFUNKEN PATENTVERWERTUNGSG.m.b.H. 18 Aug., 1966 [2 Sept., 1965], No. 36962/66. Heading H3T. In an electron-beam deflection circuit of the type in which a driver transistor 5 feeds an output transistor 8 having linearizing feedback to the base of the driver transistor 5, a circuit such as 17, 18 is provided between the bases of transistors 5 and 8 so as to by-pass the transistor 5 for the flyback-controlling turn-off pulse. As described, the sawtooth voltage is generated by charging capacitor 1 via a resistor 2 and repetitively discharging via a blocking oscillator 3. Fig. 2 (not shown), relates to a self-oscillating arrangement in which the emitter/collector path of a transistor forms switch 3, regenerative feedback being taken from point B via a resistance capacitance network to the base of the transistor 3. This network forms part of the double integrating field synchronizing pulse separator.
Patent GB-874888-A (GB)
Title: Yarn handling and severing mechanism for circular knitting machines and methods
IPC: D04B15/60
Filed: 1957-11-27
Abstract: 874,888. Knitting. BURLINGTON INDUSTRIES Inc. Nov. 27, 1957 [Dec. 6, 1956; April 2, 1957], No. 37047/57. Class 74 (2). Yarn extending over the dial cap of a rotary cylinder machine having individually retractable interchangeable yarn fingers is manipulated whilst being tensioned by suction, the manipulation including the steps of inserting yarn into selected needles and severing yarn, active and/or inactive. When yarns are to be interchanged, compressed air is supplied, via a pipe 72, to a yarnhandling mechanism housed in a block 64. A piston is thereby forced upwardly in its cylinder, to rock a lever 94 against the action of a spring 100 and so release a yarn clamp 98; the blast of air through a jet 76 induces a yarn-handling flow of air into a passage 84; and a jet of air issues from a nozzle 120 to position yarns to be severed by a cutter 172, 174. Thus when, say, a yarn finger 36<SP>1</SP> drops to active position, to introduce a yarn 40, the end of yarn 40 is released by the clamp and sucked through the passage 84 into the exhaust conduit 80 of the yarn-handling mechanism. Immediately thereafter, the yarn finger 36<SP>11</SP>, feeding the outgoing yarn 42, is raised to inactive position. As the cylinder rotates, the ingoing yarn 40 is withdrawn by the needles from under a guide tongue 60, the remaining inactive yarns are held and tensioned by the suction and so are not pulled out with the yarn 40, and slack in the free end of yarn 40 is taken up in the conduit 80. Meanwhile, outgoing yarn 42 has been carried, by the last needle 44<SP>11</SP> to knit it, under the guide tongue 60. As the free length of yarn 40 approaches the cutter, it is yielded up under tension, as necessary, by the yarn handler and, entering the air blast from nozzle 120, is bellied out to extend radially from the needle 44<SP>1</SP>, so that it will be cut as closely as possible to the fabric. The outgoing yarn 42 is carried under the yarn handler and into contact with a guide post, a loop of the yarn is sucked up into the yarn handler, and then the blast from nozzle 120 bellies out that yarn also. The movable blade 174 of the cutter is now closed on the other blade, either gradually or in two steps, so that it cuts the two yarns. The cut end of yarn 40 is exhausted through conduit 80 into a receptacle 230. When, momentarily later, the outgoing yarn 42 is cut, the end extending from its finger 36<SP>11</SP> is sucked up into and remains in conduit 80. The same step of the pattern drum which operates the cutter also causes closing of a supply valve 132 in the air line; but a reservoir 134 maintains the air flow for the interval necessary for removal of the end of yarn 40 and engagement of the end of yarn 42 in the yarn handler. Ultimately, however, as the air supply falls off, the suction of the yarn handler ceases and the mechanical yarn clamp again becomes operative.
Patent GB-449611-A (GB)
Title: Improvements in the manufacture and production of halogen-amino-1.9-anthrapyrimidines
IPC: C09B5/16
Filed: 1934-12-27
Abstract: Halogenamino - 1 . 9 - anthrapyrimidines are prepared by treating aminoanthrapyrimidines wherein the amino groups are unsubstituted, with halogens or agents supplying halogens in the absence of solvents or diluents, or in the presence of organic diluents which are not mixible with water, or in the presence of metallic halides.  Suitable diluents are nitrobenzene, benzene hydrocarbons, halogenobenzenes, ethers of the benzene series and quinoline; halogenating agents are halogens themselves, sulphuryl chloride, thionyl chloride, iron chloride, antimony pentachloride, iron bromide, pyridine-bromine addition compound, bromine chloride, cyanogen bromide and hydrogen bromide.  Nitroamino derivatives are converted by halogenation into halogenamino derivatives, bromamino by chlorination into chloramino derivatives; products containing chlorine and bromine are prepared by treating the starting-material with a chlorinating agent and bromine, or treating a polychloroamino-1.9-anthrapyrimidine with hydrogen bromide, or an amino-1.9-anthrapyrimidine containing a little chlorine in the molecule with bromine.  In examples: 4-amino-1.9-anthrapyrimidine is treated with sulphuryl chloride in nitrobenzene, with antimony pentachloride or iron chloride in nitrobenzene, with hydrobromic acid in a closed vessel at 170--180 DEG  C., with bromine (under pressure or not), and with bromine in a melt of sodium-aluminium chloride; 4-amino-2-bromo-1.9 - anthrapyrimidine, 4 - amino - PyC - methyl-and 4 - amino - PyC - aryl - 1 . 9 - anthrapyrimidines and 8-amino-1.9-anthrapyrimidine are treated with sulphuryl chloride in nitrobenzene; 2 - amino - 1 . 9 - anthrapyrimidine is treated with bromine in nitrobenzene; 2-bromo-4-amino-1.9-anthrapyrimidine is treated with chlorine in trichlorbenzene; 5-amino-1.9-anthrapyrimidine is treated with chlorine in trichlorbenzene containing iodine, or with sulphuryl chloride or bromine in nitrobenzene; 6-, 7- or 8-amino-1.9-anthrapyrimidines are treated with chlorine in trichlorbenzene in presence of iodine; PyC-amino-1.9-anthrapyrimidine is treated with sulphuryl chloride in nitrobenzene containing a little iron powder, or with bromine in nitrobenzene.  The products are in part dyes for acetate artificial silk and dye intermediates.
Patent GB-338390-A (GB)
Title: Improvements in reflex cameras
IPC: G03B19/12
Filed: 1929-12-04
Abstract: 338,390. Thornton-Pickard Manufacturing Co., Ltd., Pickard, A. G., and Reeves, J. H. Dec. 4, 1929. Drawings to Specification. Cameras, reflex. - The folding hood for the focusing screen of a reflex camera is provided with a pocket or catches for holding the shutter, of the dark slide when the shutter is withdrawn for an exposure.
Patent GB-1200641-A (GB)
Title: Wet type gas scrubber
IPC: B01D47/10
Filed: 1967-08-14
Abstract: 1,200,641. Gas scrubber. YAWATA IRON & STEEL CO..Ltd. 14 Aug., 1967 [15 Aug., 1966], No. 37245/67. Heading B1R. A venturi-scrubber has upper and lower guide members 1 and 6 which divide the gas stream flowing through the venturi into two streams, one on each side of a rotor 4 disposed between the guide members and rotatable to vary the cross-sectional area of the gas flow passage in the throat of the venturi. Liquid is injected from a supply pipe 9. In modifications the rotor may be arranged to move opposed arrangements of anticulated plates to vary the cross sectional area of the gas-flow passage.
Patent GB-1125983-A (GB)
Title: Warp beams and the like
IPC: B65H75/14
Filed: 1966-08-19
Abstract: 1,125,983. Warp beams. C. DITTRICH. 19 Aug., 1966 [28 Aug., 1965], No. 37284/66. Heading D1E. A warp beam and its flanges have cores 1 of e.g. plastics material, casings 2 of e.g. glass fibre or aluminium alloy and reinforcing members 4 of e.g. steel or a light alloy.
Patent GB-1395852-A (GB)
Title: Apparatus for inspecting tubular goods
IPC: G01N23/18
Filed: 1973-08-07
Abstract: 1395852 Inspecting pipes using radiation detectors PLASTIC APPLICATORS Inc 7 Aug 1973 [7 Aug 1972] 37357/73 Heading G1A To inspect a pipe for flaws its wall thickness is measured by a radiation detector in the pipe bore which co-operates with a multiple radiation source which is moved along a circular path round the outside of the pipe. The radiation source has three radio-active emitters which emit separate beams of radiation towards the pipe, a movable mask being provided to control the intensity and width of the total radiation emitted. The basic apparatus is shown in Fig. 1, added on to a known magnetic flaw testing machine. The known machine drives a pipe 16 to be tested through magnetic coils 18 and 20 to test for circumferential flaws and on to a current carrying probe 21 to test for longitudinal flaws. The present invention provides apparatus shown generally at 10 which comprises a detector assembly 25 fitted on to the end of the magnetic flaw probe 28 and a source assembly 27 which rotates around the pipe as the latter moves along the probe, so as to examine a helical path along the pipe. The detector assembly has fins 30, 31 Fig. 2 which help to maintain it centrally within the pipe; this fig also shows a motor 39 which causes the source assembly to rotate on bearings 37, 38. This assembly has three chambers 43, 44, 45 shown in Fig. 5, each housing a gamma emitter such as Cobalt 60 or Cesium 137; passages leading from these chambers direct radiation on to an area around the axis 17 of pipe 16. The passages are dimensioned so that by choice of the power of the individual sources a uniform radiation density is achieved in the area irradiated, and hence deviation of the detector from axis 17 can be tolerated. An apertured plate 58 is provided which is movable from left to right in Fig. 5 to block the two outer passages and provide an unobstructed passage for the central emitter if it is desired to reduce the field irradiated, e.g when small pipes are tested. In this latter case the scintillation counter used as a detector has a hollow bore, Fig. 7 (not shown), to increase the tolerance on its position. The apertured plate can be manually moved from one position to the other after the two spring loaded bolts at its ends have been released. A further apertured plate is provided below the first one, as described with regard to Fig. 3 (not shown), which allows all the passages to be blocked automatically by the operation of solenoids when the pipe is not present. This prevents the excessive radiation which would otherwise strike the detector in the absence of the pipe. Known circuitry which records the detector signals, effects calibration, and if necessary activates an alarm is described.
Patent GB-849898-A (GB)
Title: Coating for urainuim fuel elements
Inventor: SALLER HENRY ANDREW
IPC: G21C3/06
Filed: 1954-12-31
Abstract: A uranium-containing body for nuclear reactors has a surface covering of an alloy of the composition, in per cent by weight Sn 1.0-15.0, Zr the remainder.  The coating may be applied by immersing the body in the molten zirconium alloy or by applying a layer of the alloy and bonding, e.g. by rolling.  The zirconium-tin alloy may be prepared by melting the two metals in a graphite crucible using induction heating to form a master alloy containing 21% of tin and then remelting the master alloy with additional zirconium to give the required alloy. The alloy may be formed by melting together in a direct-current arc-melting process.  In a further method zirconium tetrafluoride is reduced by calcium in the presence of the required amount of tin in a bomb reduction process.  The zirconium may contain the following impurities, amounts being expressed as parts per million, C 3300, N 200, Ti 50, Hf 8000, Fe 1300, Al 300.
Patent GB-629001-A (GB)
Title: Improvements in and relating to the manufacture of abrasive tools
IPC: C09K3/14
Filed: 1946-12-24
Abstract: 629,001. Abrasive tools. CALVERT, F. Dec. 24, 1946, No. 37920. [Class 60] In the manufacture of abrasive tools of the kind comprising a tool body with a covering of abrasive, the abrasive substance, e.g., powdered diamonds, in grain condition is coated with a magnetic material, e.g., iron, and is temporarily held on the body of the tool magnetically, pending the application of the permanent fixing coating of metal or other holding material. The grains are coated by electrodeposition or spraying; the coated grains and fixing coating are applied by spraying or dipping. The tool surface may be built up by alternating layers of abrasive and fixing coating.
Patent GB-381242-A (GB)
Abstract: 381,242. Discharge apparatus. ROBINSON, E. Y., Garvary, Dryden Road, Bush Hill Park, Enfield, Middlesex, and ASSOCIATED ELECTRICAL INDUSTRIES, Ltd., Crown House, Aldwych, London. July 6, 1931, No. 19456. [Class 39 (i).] In tubes, more particularly thermionic valves, with a glass envelope having an external metal covering connected to the cathode or a similar point of fixed potential, an additional layer or coating is provided, consisting of a material which will reduce the amount of heat reflected from the interior of the envelope. The coating may be internal or external to the metal layer, or both. If shellac is used to bind the metal coating, it may be coloured with black aniline dye or lampblack ; a solution of sodium silicate in water to which lampblack has been added, or fish-glue dyed with aniline may be used. The external surface of the metal, or of its covering, may be given a matt surface.
Patent GB-1095718-A (GB)
Title: Indan compounds
IPC: C11B9/00
Filed: 1965-09-07
Abstract: The invention comprises compounds of the formula <FORM:1095718/C2/1> where R1 is H or alkyl of 1-3 carbon atoms, at least one R1 being H, R2 is H, alkyl of 1-6 carbon atoms, acyl derived from an alkanoic or cycloalkanoic acid or cycloalkyl, with the provisos that at least one R2 is acyl, not more than one R2 is H, and if carbon atoms 1 and 3 are quaternary then carbon atoms 4 and 7 are both free of acyl groups.  The compounds are prepared by reacting a compound of the formula <FORM:1095718/C2/2> where R3 is H, alkyl of 1-6 carbon atoms or cycloalkyl, at least one R3 being H and at least one of the R3's attached to carbon atoms 5 and 6 being H if carbon atoms 1 and 3 are quaternary with an acylating agent in the presence of a Lewis acid. The formyl derivatives may also be prepared by first chloromethylating the parent indan and then coverting this to the aldehyde. The acylating agent is preferably a functional derivative of an alkanoic acid having 1-6 carbon atoms.  A dinitro indan is prepared in Example 2.ALSO:Herbicidal activity is exhibited by aqueous suspensions of compounds of the formula <FORM:1095718/A5-A6/1> where R1 is H or alkyl of 1-3 carbon atoms, at least one R1 being H, R2 is H, alkyl of 1-6 carbon atoms, acyl derived from an alkanoic or cycloalkyanoic acid or cycloalkyl, with the provisos that at least one R2 is acyl not more than one R2 is H, and if carbon atoms 1 and 3 are quaternary then carbon atoms 4 and 7 are both free of acyl groups.
Patent GB-922741-A (GB)
Title: Improvements in or relating to resistors and methods of making them
IPC: H01C17/08
Filed: 1959-11-11
Abstract: 922,741. Coating by vapour deposition. J. G. RUCKELSHAUS. Nov. 11, 1959, No. 38333/59. Class 82. [Also in Group XXXVI] An electric resistor (see Group XXXVI) is formed by baking a nickel/chromium alloy filament 13 and an in. sulating base 14, of glazed ceramic or glass, and subse. quently passing a current through the filament to vacuum evaporate the alloy to form a continuous film on the base, which may then be removed and heated to stabilize the film ; a protective layer of silicon monoxide may also be evaporated thereover. Contacts 15 and 16 are provided on the base, and evaporation may be continued until the film resistance measured between the terminals reaches a desired value. The film may subsequently be grooved or etched to a desired pattern; alternatively, the pattern may be produced by evaporating through a mask. The preliminary baking is carried out at between 300‹ and 500‹ C., and the stabilizing of the film at 140‹ C.
Patent GB-882589-A (GB)
Title: Improvements in or relating to brassieres
IPC: A41C3/00
Filed: 1958-11-27
Abstract: 882,589. Brassieres. POIRETTE CORSETS Inc. Nov. 27, 1958 [June 2, 1958], No. 38342/58. Class 141. In a brassiere or corset for use with or without shoulder straps, each breast cup 12 comprises upper and lower portions 16, 14 connected by a horizontal seam 15, and an auxiliary panel 19 which is secured by the seam 15 to the inside of the cup and is arranged in the upper dotted line position for use with a shoulder strap or is folded down and engaged behind a tape 20 for use without a shoulder strap. A U-shaped stiffener 13 is arranged along the lower part of the cup 12.
Patent GB-1356277-A (GB)
Title: Liquid chromatography apparatus
IPC: G01N30/38
Filed: 1971-08-16
Abstract: 1356277 Centrifugal liquid chromatography IVAN SORVALL Inc 16 Aug 1971 [7 Dec 1970] 38423/71 Heading B1H Liquid chromatography apparatus which is to be subjected to centrifugal action comprises a sleeve 29, which may contain an inner tube 31, a funnel 22 for introducing a slurry for packing and a collection cup 38 whose overflow 39 provides for discharge of excess solvent. The arrangement of the overflow 39 is such that some liquid is retained within chamber 33 at all times to ensure conservation of moisture within the backing. In operation adsorbent slurry is packed by centrifugal action and sample is then introduced either directly into the top or via an adsorbent plug which is inserted into the top. Centrifugation is carried out as the sample is eluted. The packing is supported by filter 53 and mesh 52. The column may be extruded and analysed or the fractions eluted may be collected in collector 47 and analysed. The column may be tapered.