baber/WOPTO huggingface dataset:
Patent GB-1414885-A (GB)
Title: Compact dynamic multistation photometer utilizing disposable cuvette rotor
IPC: G01J1/02
Filed: 1973-09-25
Abstract: 1414885 Photometric centrifuges UNITED STATES ATOMIC ENERGY COMMISSION 25 Sept 1973 [6 Oct 1972] 44765/73 Heading G1A [Also in Division G2] A photometric analyzer of the centrifuge type has a removable cuvette rotor 5, Fig. 2, which is keyed to a rotor holder 2 by a pin 6. The holder 2 is driven by a motor/brake assembly 36 and has an upstanding retaining rim within which the cuvette rotor sits. The holder has a set of apertures which co-operate with photo-electric devices such as 39 to give timing signals, and a further set of apertures opposite the cuvettes 8 so that light from source 10 can reach the photo-multiplier 15 of the analyzer. The device 39 can be moved along a track, Fig.1 (not shown) to alter the timing, and light source 10 is also adjustable so that it can be positioned over the cuvettes. By turning knob 22 an appropriate filter 17 carried by a plate 16 can be placed beneath the cuvettes, a wheel 33 on the knob shaft operating micro-switches 34 to alter the sensitivity of detector 15. Alternatively a reference cuvette can be used with a feedback system to maintain the detector output constant when the filter is changed. The rotor temperature is measured by a thermistor placed within the pin 6. Cuvette rotor: the rotor comprises two transparent sheets 52, 53, Fig.4, with an opaque sheet 51 between them. The upper sheet has holes 56, 57 through which fluid may be injected into apertures 54, 55 in the central sheet. On rotation the fluid then passes along capillaries 58, 59 to cuvettes 8. Fluid may also be placed in central aperture 60 while the rotor is spinning and it then passes via region 61 along capillary paths formed between plates 51 and 53 until it reaches the cuvettes, Figs. 5 and 6 (not shown).
Patent GB-1368901-A (GB)
Title: Expanded silicate-based aggregates
IPC: C04B18/02
Filed: 1972-09-28
Abstract: 1368901 Expanded silicate aggregates DIAMOND SHAMROCK CORP 28 Sept 1972 [29 Sept 1971] 44814/72 Heading C1J An expanded aggregate is obtained by (A) mixing, at below boiling, an aqueous A.M. silicate of A.M. oxide : SiO2 of 1 : 3-7 with an anhydrous one of the same ratio, to give a total A.M. silicate solids content of 40-80%, and the solids forming 40-90% of the resulting aggregate; (B) admixing, prior to the time the anhydrous silicate becomes hydrated to the extent that the viscosity increase prevents their complete dispersion, two compounds (1) a primary insolubilizer capable of reacting with the alkali portion of the silicate to prevent caking prior to expansion but subsequent to grinding; and (2) a secondary insolubilizer capable of reacting with the silicate portion in amount sufficient to make the expanded aggregate water insoluble, the sum of 1 and 2 being less than the stoichiometric equivalent of the silicate; (C) continue mixing until no separation occurs on standing at temperatures up to boiling; (D) curing at up to boiling until the anhydrous silicate has hydrated and the primary insolubilizer reacted; (E) cooling to a grindable solid; (F) grinding; and (G) rapidly expanding the grind and causing the secondary insolubilizer to react by heating at 800-1800‹ F. Specified insolubilizers are, primary -H3Bo3, alum, FeSi, chlorides and (SiF6)<z->-; secondary-Mg phosphate, cement, fly ash, AEM carbonates, Ca silicate, iron and zinc oxides.
Patent GB-1474837-A (GB)
Title: Beryllium-containing metal alloys
IPC: C22C45/06
Filed: 1975-10-30
Abstract: 1474837 Amorphous beryllium alloys ALLIED CHEMICAL CORP 30 Oct 1975 [30 Oct 1974 28 April 1975 13 Aug 1975] 45062/75 Heading C7A A beryllium containing metal alloy which is at least 50% amorphous as measured by x-ray diffraction and has the composition Be a  Tib Zrc Xd wherein X represents an element other than Be, Ti or Zr when a, b or c has a positive value and is selected from rows 4, 5 and 6 of Groups 1B, 3A, 4A, 5A, 6A, 7A and 8 of the Periodic table (excluding rare earth and actinide elements) and the metalloids phosphorus, boron, carbon, aluminium, silicon, tin, germanium, indium and antimony or is a mixture of two or more of such elements, a, b, c, d are atomic percentages totalling 100%, a is 30 to 52%, b is 0 to 68%, c is 0 to 70% and d is 0 to 10%. The alloy may be prepared by rapid cooling at 10<SP>5</SP> to 10<SP>6</SP> ‹C/second e.g. by splat quenching fuels using an arc furnace, hammer and anvil or by using a chilled rotating cylinder in an inert atmosphere or vacuum to produce continuous ribbon, wire, sheet or powder production. Specific examples include:
Patent GB-1150972-A (GB)
Title: Process for the Regeneration and Reactivation of Deactivated Supported Platinum Group Catalyst
Inventor: MULLER JOHANNES
IPC: B01J23/96
Filed: 1967-10-04
Abstract: 1,150,972. Regenerating hydrocarbon convension catalysts. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 4 Oct., 1967 [6 Oct. 1966], No. 45136/67. Heading B1E. In a process for the regeneration and reactivation of a deactivated supported chlorinated Pt group metal catalyst which has been used for hydrocarbon convension, carbonaceous deposits are removed at 370-450‹C., with a gas containing oxygen, the catalyst is maintained at a higher temperature (but not in excess of 550‹C) in the presence of a gas having a higher oxygen content and thereafter the catalyst is rechlorinated by treatment with chlorine to an extent exceeding the chlorine treatment, if any, normally effected during operation of the conversion process, for a period of at most 24 hours immediately after operation of the convension process has been resumed. Additionally the catalyst may be subjected to treatment with CS 2  or HgS. The source of chlorine may be trichloroethylene or ethylene dichloride. Examples describe the regeneration of a Pt on A1 2 O 3  catalyst containing 0.9% of chlorine.
Patent GB-1007922-A (GB)
Title: Improvements in or relating to circuit arrangements for transmitting audio frequency signals
IPC: H04S5/00
Filed: 1961-12-19
Abstract: 1,007,922. Binaural systems; reverberation systems. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. Dec. 19, 1961 [Dec. 19, 1960], No. 45386/61. Headings H4J and H4R. Two audio-frequency channels 1, 2 (Fig. 1), are cross-connected by a first-order pair of connections 12, 12<SP>1</SP>, each including a delay section 13, 13<SP>1</SP>. A second order pair of connections 17, 17<SP>1</SP> is connected at a point in the first order connection 12 or 12<SP>1</SP> beyond the respective delay section 13 or 13<SP>1</SP> and each includes a delay section 18 or 18<SP>1</SP> and/or a filter 20 or 20<SP>1</SP>. Each second order connection connects an intermediate point of a first order connection back to the channel from which the first order connection proceeds. Where the two original signals are identical unequal time delays may be introduced in connections of the same order, but where two stereophonically related input signals are provided equal time delays are preferably introduced in crossconnections of the same order. As described, each first order connection 12, 12<SP>1</SP> also includes an adjustable attenuator 14, 14<SP>1</SP>, a filter 15, 151 and an amplifier 16, 16<SP>1</SP>. Second order connections 17, 17<SP>1</SP> each include an attenuator 19, 19<SP>1</SP> and an amplifier 21, 211. Third order connections 22, 22<SP>1</SP> each include a reverberation section 23, 23<SP>1</SP>. The channels 1, 2 are fed by two stereophonically related microphones 3, 4 and include amplifiers 10, 11. A monaural signal, e.g. from a single microphone 7, may be fed to the system in place of the stereophonic signals. The microphones may be replaced by a stereophonic or monaural gramophone pick-up or radio receiver. The delay sections 13, 13<SP>1</SP>, 18, 181 may provide mechanical, acoustic or electric delay. Each reverberation section 23, 23<SP>1</SP> may comprise a reverberation chamber housing a loud-speaker and microphone. Alternatively, each section 23, 23<SP>1</SP> includes an electro-mechanical transducer for providing mechanical vibrations coupled to a mechanico-electrical transducer followed, if required, by an amplifier. The system simulates reflections in a studio and may form part of either recording or reproducing apparatus.
Patent GB-1136367-A (GB)
Title: A method of producing a telecommunication cable having a core and an insulation of afoamed plastics material
IPC: H01B13/06
Filed: 1967-10-05
Abstract: 1,136,367. Cable insulation. KABEL-UND METALLWERKE GUTEHOFFNUNGSHUTTE A.G. 5 Oct., 1967 [11 Nov., 1966], No. 45487/67. Heading H1A. Plastics insulating material is applied to a cable core, and thereafter foamed and vulcanized or cross-linked. Cross-linking may be achieved by high energy irradiation, or the insulating material, in powder form, may be mixed with a powdered cross-linking agent, e.g. a peroxide or 2-mercaptoimidazolin and a powdered expanding agent, e.g. ammonium carbonate or azoisodibutyric acid dinitrile, and the mixture applied to a preheated core so that the mixture melts, expands and is vulcanized or cross-linked. The mixture may be applied to the core by the rotary sintering method or by means of an electrostatic field, and the core may be heated by hot air or a high frequency electric field. Polypropylene is preferred as the insulating material.
Patent GB-1214451-A (GB)
Title: Quaternary nitrogen compounds suitable as gelatin hardeners
Inventor: BURNESS DONALD MACARTHUR
IPC: G03C1/30
Filed: 1966-10-14
Abstract: 1,214,451. Hardening photographic colloid layers. EASTMAN KODAK CO. Jan.12, 1968 [Oct.14, 1966], No.45958/66. Heading G2C. [Also in Divisions C2 and C3] Layers of gelatin-silver halide photographic emulsions are hardened by the incorporation therein of 0À5-5%, based on the weight of gelatin, of a compound of general formula B+ -CHR-O-CO-ZCO-O-CHR-B<SP>+</SP> 2X<SP>-</SP> where X is an acid anion, R is hydrogen, or an alkyl radical having 1-4 carbon atoms, Z is a direct linkage, a saturated or unsaturated carbon chain which may be interrupted by hetero atoms, a cyclic hydrocarbon radical or a chain including cycohexylene or phenylene which radical or chains may bear alkyl radicals having 1-4 carbon atoms, and B<SP>+</SP> is a quaternary nitrogen residue derived from one of the following bases: - (1) pyridine which may be substituted by alkyl, hydroxyalkyl or benzyl groups (2) a bicyclo compound with a tertiary nitrogen atom in one or both bridgehead positions or (3) an aliphatic or cycloaliphatic tertiary base. The radical B<SP>+</SP> may also be derived from a bifunctional tertiary amine giving a polymer consisting of units of the formula II in which X and Z are as above and R and R<SP>1</SP> are each hydrogen or an alkyl radical of 1-4 carbon atoms or together they form the hydrocarbon portion of a ring. In Example 1, a high speed silver bromoiodide emulsion was panchromatically sensitized with a cyanine dye. Then 1, 5 or 10 grams of hardener per 100 grams of gelatin were added and the emulsion was coated on a cellulose acetate film support, and exposed. Reference has been directed by the Comptroller to Specification, 911,501.
Patent GB-1279828-A (GB)
Title: Carburetters for internal combustion engines
Inventor: HOARE TERENCE GRAHAM
IPC: F02M1/16
Filed: 1969-09-19
Abstract: 1279828 Dashpots BRITISH LEYLAND (AUSTIN-MORRIS) Ltd 14 Oct 1970 [19 Sept 1969] 46269/69 Heading F2S [Also in Division F1] The piston 18, Fig. 1, of a liquid dashpot 17 is raised when the operating linkage 4, 6, 10 of a manually-operable mixture-enrichment means of an I.C. engine carburetter, is moved to its operative setting. Thereafter, leakage around the piston allows the latter to move downwardly and thereby progressively return the mixtureenrichment means to its inoperative setting over a time interval commensurate with the prevailing ambient temperature. The piston comprises an apertured crown 25, Fig. 2, e.g. of nylon, a flexible primary valve 26, e.g. of silicone rubber, and a rigid secondary valve 27, e.g. of steel. During upward movement of the piston the liquid passes through the primary valve 26. Overriding manual return of the mixtureenrichment means from an operative setting, causes the secondary valve 27 to open to permit rapid return flow of the liquid.
Patent GB-1021967-A (GB)
Title: Improvements in or relating to insect-proof closures
IPC: E06B9/54
Filed: 1964-11-13
Abstract: 1,021,967. Insect proof blinds. D. SELBY. Nov. 13, 1964, No. 46444/64. Heading A4B. An insect proof blind arrangement has a blind 1 of glass-fibre mesh mounted on a spring roller 2, the longitudinal edges of the blind each having a sealing strip 13 of resilient material such as polyvinylchloride sheeting stitched thereto with an inner edge left free to form a resilient sealing flap 14, each edge engaging with a guide member 4 having a main channel 6 and an internal channel 10 with which the flap 14 engages.
Patent GB-1364658-A (GB)
Title: Nickel silica comosition with high nickel surface area
IPC: C01B23/00
Filed: 1971-10-06
Abstract: 1364658 Oxygen - removing compositions ESSO RESEARCH & ENG CO 6 Oct 1971 [6 Oct 1970] 46459/71 Addition to 1263132 Heading B1E [Also in Division Cl] Nickel-on-silica catalyst or oxygen-removing compositions of nickel surface area greater than 70 m<SP>2</SP>/g, suitably 90-100 m<SP>2</SP>/g and total surface area of 225 to 300 m<SP>2</SP>/g are produced by forming an aqueous mixture of a source of nickel cations, a source of silicate ions and siliceous particles, precipitating nickel and silicon compounds onto the siliceous particles while ensuring that the concentration of dissolved nickel ions is less than 0.60 mole/litre, recovering the coated siliceous particles, calcining and heating in a reducing gas, e.g. hydrogen. The source of siliceous particles is suitably Kieselguhr.
Patent GB-1591416-A (GB)
Title: Method of and device for determining the muzzle velocity of projectiles
IPC: F41G3/12
Filed: 1977-11-09
Abstract: The mode of operation of the device is executed by means of measurements of at least one previously fired projectile. By means of a rangefinder (2), the distance to the projectile is measured at at least one point (A, B) of its trajectory. A computer (3) is used and a fixed point in space is assumed. The muzzle velocity is determined by the computer on the basis of the information relating to the distance between the fixed point and at least two points of the projectile on its trajectory and the information relating to the time interval between the projectile positions at these points. <IMAGE>
Patent GB-1268193-A (GB)
Title: Manufacture of pyridine derivatives
Inventor: BOWDEN ROY DENNIS
IPC: C07D405/04
Filed: 1968-12-20
Abstract: 1,268,193. 4 - (Pyridyl) - tetrahydropyrans, -tetrahydrothiopyrans or -piperidines. IMPERIAL CHEMICAL INDUSTRIES Ltd. 3 March, 1969 [20 Dec., 1968], No. 46735/71. Divided out of 1,268,191. Heading C2C. 4 - (Pyridyl)tetrahydropyrans, -tetrahydro - thiopyrans or -piperidines are obtained by a process which comprises heating the corresponding 3-(pyridyl)-pentane-diol, -dithiol or hydroxy thiol. at a temperature of at least 250‹ C. and, when the 4-(pyridyl)-piperidine is desired as the product in the presence of NH 3 . 4 - (Pyridyl)-tetrahydrothiopyrans may also be prepared by heating pyridyl pentane-1,5- diols in the presence of H 2 S, or by heating a pyridyl alkane-hydroxy-thiol in the presence or absence of H 2 S. Examples are given for the production of the compounds. They are useful as intermediates in the preparation of bipyridyls.
Patent GB-1507085-A (GB)
Title: Wrapping machines
IPC: B65B9/067
Filed: 1975-11-12
Abstract: 1507085 Adjusting package length BAKER PERKINS HOLDINGS Ltd 1 Nov 1976 [12 Nov 1975] 46763/75 Heading B8C [Also in Divisions B5 and F2] A wrapping machine comprises a tube former for forming a web into a tube, an adjustable speed web-feeding mechanism, a conveyer for feeding articles into the former, crimping dies to seal the tube transversely between the articles, adjustable modulating means for matching the speed of the dies and the speed of advance of the tube during formation of the transverse seals, and an adjustable mechanism for driving the dies so that they will form, at will, seals at every revolution of a drive-shaft (30), or every 2nd, 3rd, ... nth revolution, the adjustable mechanisms for driving the web and dies together allowing a wide range of package lengths to be produced. The modulating means may be a cyclically variable drive as in Specification 1,420,471 and be used to drive the dies or the web-feeding means which comprise rollers which longitudinally seal the tube. The dies may be rotary dies. The adjustable mechanism comprises a clutch 32 which drives the dies through one revolution for each or for each nth revolution of the clutch driving shaft (30). This shaft carries a plate 34 carrying a pivoted latch 35 which is normally biased by a spring 35A into engagement with a flange 36 on the output shaft of the clutch. However, when a trip plate 37 engages the latch as shown the latch moves out of driving engagement with the flange 36. The plate is held in the trip plate engaging position by a lever 45 until a ratchet 40 depresses the lever. The ratchet is moved forward by one tooth for each revolution of the driving shaft 30 by a pawl 39 mounted on an eccentric 42 of a cam-shaft 38 driven from the shaft 30. Movement of the trip plate 37 to its release position also raises the pawl 39 allowing the ratchet 40 to be moved back by a spring 43 to a starting point determined by an adjustable stop 44.
Patent GB-1255015-A (GB)
Title: Machines for planing or removing layers from road-like surfaces
Inventor: WALKER WILLIAM JAMES
IPC: E01C23/088
Filed: 1968-10-03
Abstract: 1,255,015. Road surface planing machines. BRITISH JEFFREY-DIAMOND Ltd. 30 Sept., 1969 [3 Oct., 1968], No. 47050/68. Heading E1G. A road surface planing machine comprises a wheeled vehicle carrying a driven rotatable cylindrical cutting element 1 having cutting picks 1c and having it longitudinal axis 1b disposed transversely of the vehicle; the cutting element is carried on the central frame 9 of the vehicle, and the front wheels (4) and rear wheels (5) are carried on front and rear end frames 14 and 7 respectively which are connected to the central frame 9, the rear wheels being arranged in two pairs and connected to a tandem drive unit 5a on which is pivotally mounted the rear end frame 7; the linkage connection 13 between the front end frame 14 and the central frame 9 allows pivotal movement of the central frame and rear end frame 7 together about the axle line 5b of the tandem drive unit 5a, and power means 16 are provided to effect such pivotal movement to raise or lower the cutting element 1; and horizontal pivots between the front wheel axle 4a and the front end frame 14 and between the central frame 9 and rear end frame 7 (pivots 8) allow pivotal movement of the central frame to incline the cutting element, and power means 17 are provided to effect such inclination. These power means 16, 17 are preferably double-acting hydraulic piston and cylinder devices, located as shown, and similar devices 19 steer the vehicle by means of a vertical pivot between the front end frame 14 and linkage 13. The cutting picks 1c may be removably mounted on the cutting element 1 in a helical pattern, and the cutting element extends laterally beyond the wheels at one side. A conveyor 10 to remove planed material, a rotary brush 11, and a water sprinkler system may be provided on the central frame 9. To reduce the vehicle speed when planing, the drive to the rear wheels may be disconnected from the main propulsion unit 6 and taken from a hydrostatic motor.
Patent GB-1075452-A (GB)
Title: Improvements in or relating to telephone station apparatus
Inventor: HARROLD ARTHUR EDWARDS
IPC: H04M1/278
Filed: 1964-06-24
Abstract: 1,075,452. Impulse diallers. GENERAL ELECTRIC CO. Ltd. July 19, 1965 [June 24, 1964], No. 47178/66. Divided out of 1,075,451. Heading H4K. A repertory dialler has a magazine of punched or magnetic cards, the digit values on which are successively sensed as the card is extracted and determine the angular movement of an electrically driven impulse mechanism. The description is similar to Specification No. 1,075,451 but the claims relate to the magazine feature.
Patent GB-1013172-A (GB)
Title: Collapsible motor vehicle
IPC: B62K15/00
Filed: 1962-12-17
Abstract: 1,013,172. Foldable motor-cycles. S. J. BURWELL. Dec. 17, 1962, No. 47684/62. Heading B7E. The motor-cycle of Fig. 1 may be collapsed into suit-case form, Fig. 3, by first releasing the catches 38, Fig. 4, which hold the body sides 33, 34 together, and then pivoting inwardly the front and rear wheel assemblies and foldable pedals 46 about fixed brackets 39, 56, the handle bars 22, Fig. 6, having been pivoted downwardly on ears 21 on the front wheel forks after releasing a holding screw 23. In the Fig. 1 position the sides 33, 34 encompass and hold fast spools 42, 59 on the wheel assemblies, and the covered saddle 74 is provided with metal inserts 75 having spring forks which clip into cut-outs 76, Fig. 12. The front pivot forks 28 are pivoted to cross-shafts in the pivoted channel members 31, and in the operative position are held locked by a spring- biased catch 48, Fig. 3 and Figs. 10 and 11 (not shown).
Patent GB-1091590-A (GB)
Title: Stabilisation of polyolefines
Inventor: WOOD DEREK HAROLD
IPC: C07F9/24
Filed: 1965-11-11
Abstract: Polyolefins are stabilized with at least one compound of formula (RS)2PNR1R11 or ZZ1PXYX1PZZ1 where R and R1 are alkyl or aryl, R11 is hydrogen, alkyl or aryl, Y is an alkylene,arylene or alkarylene group containing at least 2 carbon atoms, X and X1 are NH or S and Z and Z1 are NR1R11 or SR, said compound having at least one PS bond and at least one PN bond.  Specified polyolefins are polyethylene, polypropylene and poly(4 - methyl - pentene - 1). Conventional ultra violet stabilizers, e.g. hydroxy-benzophenones, benzotriazole, salicylates and unsaturated cyano compounds; and phenolic antioxidants, e.g. 4,41-thiobis (2,6-di-t. butylphenol), 4,41 - thiobis (3 - methyl - 6 - t. butylphenol) and 1,1,3 - tris (2 - methyl - 4-hydroxy - 5 - t. butylphenyl) butane; may also be incorporated in the polyolefins which may be made into shaped articles.  In examples polypropylene is stabilized with conventional stabilizers and (3) (C12H25S)2PNHC18H37 and (4) (C12H25S)2PNH(CH2)6 NHP(SC12H25)2.ALSO:Compounds of formul, (RS)2PNR1R11 or ZZ1PXYX1PZZ1 where R and R1 are alkyl or aryl; R11 is hydrogen, alkyl or aryl; Y alkylene, arylene or alkarylene having at least 2 carbons; X and X1 are -NH- or -S-; and Z and Z1 are -NR1R11 or SR; may be prepared by reacting with an amine or diamine an intermediate prepared by heating a trithiophosphite with phosphorus trichloride at 50 DEG  C. for 24 hours.  In examples an intermediate prepared by reacting trilauryl trithiophosphate and phosphorus trichloride is reacted with (1) n-octadecylamine to give (C12H25S)2PNH-(C18H37) and with (2) hexamethylene diamine to give (C12H25S)2PNH(CH2)6 NHP(SC12H25)2.