baber/WOPTO huggingface dataset:
Patent GB-1496469-A (GB)
Title: N-(1,2,4-triazin-5-on-4-yl)-glycine derivatives process for their preparation and their use as herbicides
IPC: C07D253/075
Filed: 1976-09-10
Abstract: 1496469 N - (1,2,4 - triazin - 5 - on - 4 - yl)- glycine derivatives BAYER AG 10 Sept 1976 [13 Sept 1975 8 May 1976] 37616/76 Heading C2C The invention comprises compounds of general formula in which R<SP>1</SP> is alkyl, alkoxy, alkylthio or alkylamino, R<SP>2</SP> is alkyl, cycloalkyl or phenyl optionally substituted (e.g. by chlorine, bromine, alkyl, alkoxy, fluoroalkyl, cyano or nitro), R<SP>3</SP> is hydrogen, alkyl, alkenyl or alkynyl, and R<SP>4</SP> is hydroxyl, alkoxy, alkylthio, amino, alkylamino or dialkylamino. A compound of Formula I may be prepared by reaction of a compound of formula with glyoxalic acid or a derivative thereof of formula OHC-COR<SP>4</SP> and (when R<SP>3</SP> in compound I is not hydrogen) an alcohol R<SP>5</SP>OH, where R<SP>5</SP> is alkyl, alkenyl or alkynyl. A diluent may be present; R<SP>5</SP>OH may be used in excess as solvent.  The compounds of Formula I are herbicides.
Patent GB-823999-A (GB)
Title: Method of producing titanium zirconium and thorium
IPC: C01B33/08
Filed: 1956-12-10
Abstract: In a process for obtaining titanium, zirconium or thorium, the appropriate dioxide is reacted with HF (500-600 DEG  F.) and the tetrafluoride distilled off.  It is thus reacted with Si under a pressure of at least one atmosphere and at a temperature of 500-800 DEG  F., the gaseous SiF4 given off reacting with water to yield HF, the latter being recycled.ALSO:Titanium, zirconium and thorium are obtained by reacting the tetrachloride with silicon and removing the silicon tetrafluoride as a gas.  Preferably a pressure of at least one atmosphere and a temperature in the range 500-800 DEG F are used. A cyclic process is disclosed, in which the appropriate dioxide is reacted with HF to give the tetrafluoride and the SiF4 is reacted with water to give SiO2 and HF.  The tetrafluoride formed is purified by distillation.
Patent GB-313399-A (GB)
Title: Lath hammer
IPC: B25D1/04
Filed: 1928-12-21
Abstract: 313,399. Hansen, V. M. Dec. 21, 1928. Hammers; chisels.-A claw hammer especially surtable for reinforced concrete work has a flat extension 2 terminating in a chisel 3 at one side of the nail puller 10. The head 1 is attached to the handle 4 in known manner by clips 6 and bolts 12.
Patent GB-972943-A (GB)
Title: Method for separating thorium and yttrium values
Inventor: VANDERKOOI WILLIAM NICHOLAS
IPC: C01F17/00
Filed: 1962-10-08
Abstract: Thorium values are recovered from aqueous acidic solution, preferably uranium-free and with pH 1.0 to 2.5, by contacting with a waterinsoluble resin, e.g. of granular material, having N-containing substituents which co-ordinate thorium; rinsing with water, and eluting with mineral acid.  The solution containing thorium, yttrium and iron is passed down or forced up through a resin bed, at a rate of 0.1 to 2 ml./ min./gm. of resin.  The resin may be a vinyl-benzyl resin containing a -amino carboxylic acid (e.g. iminodiacetic acid) groups, or polyalkylene polyamine (e.g. diethylene triamine) groups, e.g. dimethyl sulphonium chloride cross-linked with divinylbenzene-formaldehyde-diethylene-triamine. Adsorbed thorium is eluted and may be freed from iron by recycling over the resin or by treating with aqueous HF to precipitate ThF4.xH2O.  Yttrium may be recovered from the initial effluent by subsequent adsorption of a cation-exchange resin.
Patent GB-1438827-A (GB)
Title: Shock absorbers
IPC: F16F1/373
Filed: 1973-08-13
Abstract: 1438827 Plastic moulded fasteners ITW Ltd 12 Aug 1974 [13 Aug 1973] 38229/73 Heading E2B [Also in Division F2] A one-piece plastics moulded fastener comprises two parallel flanges 22, 24 lying perpendicular to and connected by a plurality of spaced struts 10, 12, 14, 16, 18, 20, and a self-locking fastening e.g. 40, extending from each flange 22, 24, in a direction away from the struts. The embodiment shows each self-locking fastening 40 in the form of a cylindrical wall e.g. 30, with two barbs 36, 38, each surrounded by a U-shaped gap e.g. 42, Fig. 2. The fastener may be moulded from any non-brittle plastics material; polypropylene is mentioned.
Patent GB-976416-A (GB)
Title: Improvements in or relating to the preparation of 12-aminododecanoic acid
Filed: 1962-10-09
Abstract: 12-Hydroxyiminododecanoic acid, a new compound, is produced by nitrosating cyclododecanone in the presence of sulphuric acid and below 70 DEG C., for a time in sufficient to allow substantial amounts of the corresponding amido acid to be formed, and hydrolyzing the resulting product with water.  12-Amino dodecanoic acid is obtained by the catalytic reduction of 12-hydroxyiminododecanoi acid with Raney nickel or cobalt or with a noble metal catalyst, over a wide temperature and pressure range.  It is preferable to admix ammonia if Raney nickel is employed.  Adam's platinum in acetic acid is specified as the example of the noble metal catalyst.
Patent GB-853236-A (GB)
Title: Improvements relating to composite metal coatings
IPC: C25D5/14
Filed: 1958-11-27
Abstract: A composite metal coating for the protection or decoration of metal surfaces consists of alternate layers of Ni each 2.5-50m  thick and of Co, Sn, Pd or an alloy of Co with up to 20% W or with up to 90% Ni each 0.25-7.5 m  thick, the foundation and outermost layers both being of Ni and the total thickness of the coating being at least 6.25 m .  Examples of Co alloys are Co-15% W, Co-46.7% Ni and Co-55.2% Ni.  The layers may be formed by chemical deposition of Ni or Co as described in U.S.A. Specifications 2,532,283 and 2,532,284; by vacuum evaporation; by thermal decomposition of metal carbonyls; or by electrodeposition (see Group XXXVI).  A final layer of Cr may be applied.  Metal surfaces which may be coated include those of steel, Al, Cu, Zn and brass.
Patent GB-359298-A (GB)
Title: An improved ink-pad for use in duplicating machines
IPC: B41L13/18
Filed: 1930-12-19
Abstract: 359,298. Stencil-printing apparatus. HAHN, H., 8, Olbersstrasse, Charlottenburg, Berlin. Dec. 19, 1930, No. 38393. [Class 100 (ii).] Inking-apparatus. -An ink-pad for use in duplicating machines, of the type in which stencils are adapted to be attached to the surface of the pad, comprises a plurality of independent sections 1, 2, placed side by side in a shallow tray 5, each of said sections carrying a different coloured ink. The pad consists of a layer of absorbent material, fixed on a wood block 3 with an intermediate layer 4 of felt &c., and the stencil 6 is secured in position by a frame 7.
Patent GB-1465064-A (GB)
Title: Deep-drawing steel
IPC: C23D5/00
Filed: 1973-08-14
Abstract: 1465064 Deep drawing steel BRITISH STEEL CORP 9 Aug 1974 [14 Aug 1973] 38479/73 Heading C7A A deep drawing steel, suitable for vitreous enamelling without "carbon boiling" or "fish scaling" contains Basic oxygen steel, killed with up to 0À1% aluminium is cast, and the inclusion-shape control agent e.g. Cerum, is added either during casting or in the mould. The addition spheriodizes the FeS and MnS inclusions improving the formability of the steel and prevents "fish-scaling" due to hydrogen diffusion to the steel/enamel interface on standing after conventional enamelling. The low carbon content prevents "carbon boiling" due to the formation of CO.
Patent GB-809176-A (GB)
Title: Improvements in or relating to electric amplifier apparatus
IPC: G05B11/01
Filed: 1956-12-19
Abstract: 809,176. Magnetic amplifiers. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. Dec. 19, 1956 [Dec. 29, 1955], No. 38674/56. Class 40 (9). A pair of auto-self-excited transductors respectively comprising main windings W1, W2 and W3, W4 respond in opposite respects to a D.C. control signal in windings C1-C4 to produce a resultant A.C. output in a load L the phase of which depends on the signal polarity, and also develop a D.C. output voltage for feed-back purposes across the two transductors the polarity of which depends on that of the control signal. In one arrangement, Fig. 2, the transductors are energized over a centre-tapped transformer T1 and each transductor is shunted by a rectifier R1, R2 and an impedance Z1, Z2 connected between terminals 1-2 and 1-3. In the absence of a control signal, both transductors conduct equal currents which act in opposition in the load so that the resultant output is zero. In addition, the potentials between terminals 1-2 and 1-3 are equal and the voltage drops in impedances Z1, Z2 due to unidirectional current flow through R1, R2 oppose and neutralize each other. When a control signal is applied, the transductor outputs alter in opposite respects and a resultant A.C. load current is obtained. Consequential differences in the potentials between terminals 1-2 and 1-3 also arise, with the result that a D.C. output is obtained across Z1, Z2 which is applied to feedback windings F1-F4 after amplification by a further magnetic amplifier MA. This amplified output is also applied to a feed-back winding C in a preceding amplification stage, Fig. 1, the two-stage amplifying circuit shown being used to control the speed and direction of rotation of a two phase motor DM. In a modification. Fig. 3, the impedances Z1, Z2 are respectively connected in parallel with the main windings W1, W4 to avoid the provision of rectifiers R1, R2. An arrangement is also described, Fig. 4, in which the load is associated with the transductors over a transformer T2, the primary transformer windings P1-P4 being each connected in series with a main winding. In this case the impedances Z1, Z2 are each coinnected in parallel with a single transformer primary winding P1, P4. The transductors in the basic circuit shown in Fig. 1 may be replaced by triode valves or thyratrons, Fig. 5 (not shown).
Patent GB-981347-A (GB)
Title: Polymeric compounds containing nitrogen
Inventor: HASELDINE ROBERT NEVILLE
IPC: C08G73/00
Filed: 1960-11-15
Abstract: Polymers with a repeating structural unit ((R1R11CX)-N-O-CH2, in which R1 and R11 are alkyl, halogeno-alkyl, chlorine, or fluorine and X is chlorine or fluorine are prepared by reacting diazomethane with a nitroso compound of formula R1R11C(X)NO.  Reaction may be in a solvent, e.g. diethyl ether, perfluoro-n-pentane, or CF2C1CFC12. Gaseous diazomethane may be diluted with an inert gas, e.g. H#q or N2.  Examples describe the production of polymers from diazomethane and (1) to (4) trifluoronitrosomethane; (5) heptafluoro-1-nitrosopropane; (6) and (7) 2-chloro-2-nitrosopropane.
Patent GB-1026238-A (GB)
Title: Improvements in or relating to heat-sealing thermoplastic wrappers
IPC: B65B51/12
Filed: 1964-09-25
Abstract: 1,026,238. Package heat-sealing apparatus. CONTINENTAL CAN CO. Inc. Sept. 25, 1964 [Nov. 21, 1963], No. 39256/64. Heading B8C. A machine for sealing free underfolded portions of a thermoplastic wrapper forming part of a package, comprises a conveyer including endless chains having upper and lower runs, stationary planar means between the upper chains to heat the portions to be sealed and a plurality of elements between the spaced chains to support each package while it is moved across and beyond the heating means and to transmit the heat indirectly to the area being sealed, each package being positioned so that the underfolded portions contact an element. The package may comprise articles positioned in a shallow tray which is placed in a bag of thermoplastic film. Each package is placed on a " flag " 85 made of fibreglass impregnated with a polytetrafluoroethylene composition and supported on a rod 88 secured between the conveyer chains 51, 52. The packages are carried by the " flags " 85 across the top of an electrically heated plate 35 projecting through an aperture in a support plate 30, and a tyre 98 applies pressure from above. The packages are then carried across a cooling plate 44 likewise projecting through a support plate 39 and are then discharged. When the " flags " are between the lower conveyer chains they are maintained horizontal by a lower plate 15. In another embodiment, additional heating and cooling plates can be located on the opposite side of the longitudinal centre line of the machine to heat seal packages having wrappers open at two end portions. A second tyre may be added to overlie the additional heating plate. In a still further embodiment, single heating and cooling plates are used being wider than the plates 35, 44 and more centrally located.
Patent GB-1039615-A (GB)
Title: Trays and like containers
Inventor: BUDD OSWALD ARCHIBALD WILLIAM
IPC: B65D21/02
Filed: 1963-10-04
Abstract: 1,039,615. Moulded trays. FIBRE FORM Ltd. Dec. 21, 1964 [Oct. 4, 1963], No. 39269/63. Heading B8P. A moulded tray has an outwardly extending rim consisting of portions 15, 16, 17 which curve upwards and portions 18, 19, 20 which curve downwards such that an identical tray may be inverted and placed face-to-face on top of the aforementioned tray, relative movement between the two being prevented due to the upwardly curving rim portions of one tray engaging the downwardly curving rim portions of the other tray. Corrugations 32 enable several such containers formed by two face-to-face trays to be securely stacked, part 32b of the corrugations extending above and part 32a below the bottom surface of the tray. The corrugations 32a, 32b then fit one within the other. Bays 25-28 extending outwardly of the tray sides 12, 14 form abutment members enabling the trays to be stacked within each other the same way up to form containers of depth just less than the depth of a single tray, Fig. 3 (not shown). When so stacked alternate trays are turned relatively through 180 degrees about a vertical axis, with the bays 25, 26 below the bays 27, 28 of the tray above, and the bottoms of the bays lying on the rims 15 &c. The sides of the tray are splayed outwards, to allow the trays to be nested one inside the other, the same way up, each bay then entering a corresponding bay. As shown, the trays are of rectangular shape, but alternatively they may be rounded or oval. The abutment members may alternatively be lugs projecting from the sides, the lugs fitting into apertures of a like tray. The abutment members may be formed on all sides of the tray or they may be formed at intervals around a curved wall tray.
Patent GB-937006-A (GB)
Title: Collapsible infant height measuring device
IPC: A61B5/107
Filed: 1961-11-06
Abstract: 937,006. Height measuring apparatus. C. B. MORAN. Nov. 6, 1961, No. 39700/61. Class 106 (2). Height measuring apparatus comprises a " roller-blind " arrangement having a graduated sheet 20 to the outer end of which is secured a foot-plate 23 which acts as a closure for the housing 11 when the sheet is rolled up on to its spring-loaded roller. Ratchet-type locking mechanism may be provided. As shown, the housing has a flat bottom for resting on a table T to which the housing may be clamped (Fig. 4) by means of brackets 30. The apparatus may be suspended for measurement with the subject standing on the foot plate 23.
Patent GB-1337625-A (GB)
Title: Etching of coatings containing a silicon compound especially for  semiconductor devices
IPC: G03F7/26
Filed: 1971-08-21
Abstract: 1337625 Etching FUJI PHOTO FILM CO Ltd 24 Aug 1971 [25 Aug 1970] 39747/71 Heading B6J A silicon or germanium semi-conductor substrate is provided with a resistive layer of silicon dioxide, silicon nitride or borosilicate or phosphorilicate glass, and the layer is then etched in a pattern photolytically, by applying thereto an etching solution comprising a compound which decomposes on the application of radiation to liberate a substance which etches the layer, drying the solution to form a solid coating, and irradiating the coated layer with a pattern of radiation of suitable wavelength, such as by exposure through a mask. The etching solution comprises (a) a decomposable compound such as tritylfluoramine, tetrafluorohydrazine, tri-n-butyl tin fluoride, α,α,α- trifluoratoluene, fluorobenzene, fluorosulphonyl-  benzenesulphonyl chloride, mono fluouroacetone, 4,4<SP>1</SP>-fluorobenzophenone, methanesulphonylfluoride, 1 - fluoro - 2 - propanol, hexafluorobenzene, trityldifluoroamine, fluoranyl, trifluorodimethane, trifluorotrichloroethane, p,p<SP>1</SP> - difluorodiphenylsulphone, (b) a binder suitably a resinous polymer such as a vinyl polymer, e.g. polystyrene or polyvinyl alcohol, (c) a solvent for the compound and the binder, e.g. benzene, acetone, xylene, toluene and ethanol.
Patent GB-1517365-A (GB)
Title: Camera viewfinders
IPC: G03B7/099
Filed: 1975-09-29
Abstract: 1517365 Camera view-finder ASAHI KOGAKU KOGYO KK 29 Sept 1975 [30 Sept 1974] 39811/75 Heading G2A A camera view-finder has a prism 6 with reflecting faces 6-2, 6-3, the second of which has a portion defining a view-finder field, an additional prism 9 being attached to this face 6-3 outside the said portion to direct light to a light responsive element 10. Optionally there are two additional prisms and two light responsive elements. As shown, the view-finder includes a removable section comprising a second prism 7 and an eyepiece 8, prism 6 or prism 7 having a roof surface. Using the arrangement shown, the light responsive element is not effected by light entering through the eye-piece nor by changing the removable section 7, 8. In Figs. 5 and 6 (not shown), lenses (11), are interposed between the additional prisms (9) and light responsive elements (10).
Patent GB-1042029-A (GB)
Title: Improvements in or relating to indicators
Inventor: FLETCHER JOHN FORSYTH
IPC: G08B5/24
Filed: 1962-10-22
Abstract: 1,042,029. Visual signalling systems. STANDARD TELEPHONES & CABLES Ltd. Oct. 18, 1963 [Oct. 22, 1962], No. 39883/62- Heading G4F. [Also in Division G1] An electrical instrument has an indicating element which comprises a centrally pivoted disc having a contrasting bar B marked diametrically across a viewable face thereof. The instrument can be used to display the position of two or three-position devices such as circuitbreakers and valves and also to display a continuously-variable parameter. A small milliammeter one inch in diameter is convenient for use on a mimic diagram-type control panel. Stops C, D, Fig. 1, restrain movement, one in each direction. The B assumes position 1 when the meter movement passes no current and position 2 when it passes full current. If a two-position device is made to control a circuit-breaker placed in series with the instrument then positions 1 and 2 of the bar B indicate the condition of the device. In another arrangement, Fig. 2 (not shown), the bar B assumes a central zero position 1 and full scale negative and positive positions 2, 3. Used in the circuit of Fig. 5, lower and upper positions of a contact CBA are reflected in negative and positive positions 2, 3 of the bar, whilst the central position 1 indicates the transition of CBA or a fault condition such as a line break or both contacts open. An alternative circuit is represented in Fig. 7 (not shown), whilst Fig. 6 shows the instrument arranged to indicate continuously between zero and maximum current conditions. Each instrument may be fixed to a control panel by a single hole and a lock-nut or rubber grommet.
Patent GB-1182964-A (GB)
Title: Process for the Production of Foamed or Foamable Resin Compositions.
Inventor: SKINNER STANLEY JOHN
IPC: C08J9/00
Filed: 1967-09-01
Abstract: 1,182,964. Extruding foamed thermoplastics. MONSANTO CHEMICALS Ltd. 31 July, 1968 [1 Sept., 1967], No. 40099/67. Heading B5A. [Also in Division C3] A foamed or foamable composition is produced by continuously heat-softening and pressurizing a thermoplastic synthetic resin in an extruder, injecting a mixture of a volatile blowing agent and a halogen-containing flame-retardant into the resin which is then mixed under pressure and the composition is conveyed to the extruder outlet where it is discharged. The discharged composition may be allowed to expand in a zone at a lower pressure than in the extruder or it may be chilled before it expands so as to produce a foamable composition. The resin may be polystyrene, the blowing agent may be isobutene or methylene chloride and the flame-retardant may be pentabromomonochlorocyclohexane, hexabromocyclododecatriene, 2,3-dibromopropyl phosphate, 2,2- bis - 4 - allyloxy - 3,5 - dibromophenyl propane, or tribromophenyl allyl ether. The composition may be extruded in the form of a board or sheet. In examples polystyrene pellets were used which were coated with silica, and the extruder was fitted with an adjustable pressure-reducing valve behind a slit die and an injector for feeding isobutene into the barrel.
Patent GB-401393-A (GB)
Abstract: 401,393. Electric furnaces. WEJNARTH, A. R., 11, Dambergsgatan, Eskilstuna, Sweden. June 7, 1932, No. 16061. Convention date, July 10, 1931. [Class 39 (iii).] In a process for the recovery of metals by the reduction in electric furnaces of materials containing volatile metals and metal oxides, finely divided reducing materials are added to the gases leaving the reaction space of the furnace, the gases being heated by additional sources of heat so that the volatilized metal oxides and reoxidized metal vapours are reduced to metals. The finely divided reducing material, e.g. coal dust, is blown by tubes or similar means into the gases at a suitable place in the furnace, or the discharge conduit, particularly in the zone where the additional heating is carried out. In one form of apparatus for carrying out the process, the furnace comprises a pair or more of electrodes A, B, for reducing the charge. Additional sources of heat comprise an electrode or electrodes, 1 projecting into the slag, or electrodes 2 above the slag, or an arc or arcs 3 arranged at the exit for the gases, or an arc or arcs 4 located in the conduit discharging into a condenser. Electric heating elements 6 may also be used. When the exhaust gases of the furnace are used for heating they may be burnt in a circular channel 5.