baber/WOPTO huggingface dataset:
Patent GB-354816-A (GB)
Title: Process for treating vanadium ores and particularly vanadates of lead and of other metals
IPC: C22B34/22
Filed: 1930-05-13
Abstract: Vanadium ores, particularly ores comprising vanadates of lead or other heavy metals, are reduced, for example by carbon monoxide or hydrogen, in the presence of a flux consisting of one or more alkali or alkaline earth chlorides or cyanides, the heavy metals being thereby obtained in the metallic state, and the vanadium as insoluble sesquioxide which may be converted into vanadic acid, purified, and reconverted to sesquioxide.  The Specification as open to inspection under Sect. 91 (3) (a) refers also to the production of sodium vanadate from the product, and also to the treatment of ores of tungsten, molybdenum, and the like.  This subject-matter does not appear in the Specification as accepted.ALSO:Vanadium ores, particularly ores comprising vanadates of lead or other heavy metals, are reduced, for example by carbon monoxide or hydrogen, in the presence of a flux consisting of one or more alkali or alkaline-earth chlorides or cyanides, the heavy metals being thereby obtained in the metallic state, and the vanadium as insoluble sesquioxide which may be converted into vanadic acid, purified, and reconverted to sesquioxide.  The Specification as open to inspection under Sect. 91 (3) (a) refers also to the production of sodium vanadate from the product, and also to the treatment of ores of tungsten, molybdenum, and the like.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1253717-A (GB)
Title: Improvements in or relating to drilling methods and apparatus
IPC: E21B47/12
Filed: 1969-03-20
Abstract: 1,253,717. Borehole logging. SOC. NATIONALE DES PETROLES D'AQUITAINE. 20 March, 1969 [22 March, 1968], No. 14752/69. Heading H4D. [Also in Division G1] The mechanical properties of rock are measured during a drilling operation by measuring the vibrations of the upper part of the drilling assembly. The vibrations are sensed by a strain gauge bridge circuit responsive to stresses at the top of the drilling assembly and by pick-ups responsive to the longitudinal or torsional acceleration of the top of the drilling assembly. Band pass filters 7, 8 pass components of the stress signal 5 and acceleration signal 6 at the frequency equal to the rotational speed of the drill multiplied by the number of operational elements on the tool. The acceleration signal passes through amplifier 11 and integrator 11a and is added to the stress signal in adding unit 12. The composite signal is amplified at 14, phase-shifted at 16, and supplied to one input each of a differential amplifier 18 and a phase comparator 28. Generator 4 generates an alternating voltage of amplitude proportional to the frequency, which is fed through adjustable gain amplifier 23, adjustable phaseshifter 30 and delay line 32 to be compared in amplitude and phase at 18, 28 respectively with the composite signal. The outputs of differential amplifier 18, integrated at 20, and of phase comparator 28 are used to control the settings of 23, 30 which settings at balance are evaluated at 37 and recorded at 38 as a function of drill depth. The drilling may be controlled in dependance on the rock characteristics, the rotational speed of the drill being varied to find the speed which gives the maximum vibration amplitude and the speed being maintained at the value to give this maximum amplitude.
Patent GB-295094-A (GB)
Title: Improvements in connection with the heating and cooling of buildings
IPC: F24D3/16
Filed: 1927-06-01
Abstract: 295,094. Musgrave, J. L., and Crittall, R. G. June 1, 1927. Radiators.-In the " panel " system of heat. ing and cooling buildings, the pipes are enclosed, after erection, with a heat-conducting cover, con. tact being made by a small quantity of plastic material between the pipe and cover. The pipes B are secured by straps b<1> to the structure A, and then enclosed in a cover D previously formed of plastic or other material. Plastic material d<2> ensures the transmission of heat from the pipes to the cover. In an alternative form, the cover may be of metal, without grooves or channels, but including a small quantity of plastic material between each pipe and the cover.
Patent GB-957578-A (GB)
Title: Method of preparing pitch used in the manufacture of electrodes
IPC: C10C1/16
Filed: 1962-04-17
Abstract: Electrode pitch binders are obtained by continuously supplying a pitch of Kraemer-Sarnov softening point between 55 DEG  and 65 DEG C. obtained by distillation of coal tars to a cooking zone maintained at 390 DEG  to 400 DEG  C. and where there is created a distillation of the oils contained therein after having caused it to pass through successively, and against the current of oil vapours coming from the cooking zone, a first treating zone where the condensation of the medium fractions of distillation of said oils and their mixture with said starting pitch occur, and an intermediate treating zone where the condensation of the heavy fractions of said oils <PICT:0957578/C3/1> and their mixture with the pitch coming from the first treating zone occur, and continuously withdrawing the pitch formed in said cooking zone.  The starting pitch, which may be obtained by the continuous distillation of coal tars, may be mixed with the heaviest oils, e.g. chrysene oils of boiling point greater than 350 DEG  C., coming from the continuous distillation. The first and intermediate treating zones are maintained at 300 DEG  to 320 DEG C. and 350 DEG  to 370 DEG  C. respectively.  The starting pitch enters the apparatus through pipe 1 to the upper part of the reaction column 5, which comprises three superimposed zones, an upper zone 6, an intermediate zone 7, and a lower or cooking zone 8. The zones are connected by central passageways 6c and 7c in which are disposed elements such as Raschig rings 9 for contacting the downflowing pitch with the vapours from the cooking zone 8.  Light oils are removed from the top of the column through pipe 10 and electrode pitch is drawn off through pipe 18.  The pitch may remain about 2 hours in the first zone, 4 to 5 hours in the intermediate zone, and 5 to 6 hours in the cooking zone.
Patent GB-165829-A (GB)
Title: Improved apparatus for the production of hydrogen
IPC: C01B3/10
Filed: 1919-06-13
Abstract: 165,829. Griggs, A. R. June 13, 1919. Hydrogen.-Apparatus for use in the ironsteam porcess of making hydrogen is arranged in such a manner that the reaction material contained in retorts or chambers is heated intermittently and directly by the combustion of the spent reducing gases, and continuously and indirectly bv externally heating the retorts, &c. by the combustion of the spent reducing gases and/or of these gases after they have been used for the internal heating of the retorts. By this arrangement the material is heated evenly throughout; consequently retorts of relatively large cross-section can be employed, and for the purpose of obtaining a large conduction surface the retorts may be of rectangular or other section which gives a large perimeter in proportion to cross-sectional area. Two groups of retorts or chambers are preferably employed. In the arrangement shown, the retorts are arranged in two groups A, B; reducing gas is fed to the group A through a three-way valve 8, and after passing through the retorts the waste gases are led through a four-way valve 10 either to the furnace through the burner main 11, or to the other group B through a condenser 13 for removing water vapour, and suitable valved connections; the waste gases are burnt in combustion chambers provided with fireproof linings 18 in the upper parts of the retorts, a supply of air preheated if necessary being introduced through a pipe 17. The hot gases pass downwards tbrough the material, back to the four-way valve 10 and from thence to the burner main 11 for heating the retorts externally. When reduction in group A is complete, the air-valve 17 is closed, the control valve 8 reversed, and the purging- steam supply through valve 23 turned on, and the gases remaining in group A together with impure hydrogen are forced into the retorts of group B through the valve 10 and condenser 13. Purging completed, the valves 23, 15 are shut, the main steam supply through valve 24. turned on, and the hydrogen outlet 25 opened; at the same time the first stage of reduction is being carried out in the other group, and the spent gases therefrom are passed into the furnace through the valve 10 and burner main 11. At the completion of the hydrogen-making phase in grcup A, these spent gases are by suitably operating the valves passed into the retorts of this group, and thereafter the subsequent procedure is as above described.
Patent GB-733077-A (GB)
Title: Improvements in or relating to cathode-ray tubes comprising luminescent screens
IPC: C09K11/64
Filed: 1952-06-13
Abstract: 733,077. Luminescent materials. PHILIPS ELECTRICAL INDUSTRIES, Ltd. June 13, 1952 [June 16, 1951], No. 14944/52. Drawings to Specification. Class 39 (1). A high vacuum cathode-ray tube for use in apparatus for televising films or diapositives and in radar apparatus comprises a luminescent screen which contains a luminescent material which will emit radiation in the short-wave blue and long-wave ultra-violet parts of the spectrum, said material being activated by trivalent cerium and having a decay time of the fluorescence shorter than 10<SP>-6</SP> sec., which material is a crystallized fired reaction product consisting solely of silicon, oxygen, one or more alkaline earth metals and, if desired, aluminium, said elements being present in such quantities that the material can be symbolically represented by a point within a specified domain in the ternary system M-SiO 2 -Al 2 O 3 , M representing the alkaline earth metals. The cerium content of the material is between 0.05 and 10 mol. per cent of the total quantity of alkaline earth oxide. Methods of preparing luminescent materials of the composition 2CaO.Al 2 O 3 .SiO 2  : 2 mol. per cent of trivalent cerium and 2SrO.Si0 2 : 2 mol. per cent of trivalent cerium are described. Specification 652,091 is referred to.
Patent GB-919486-A (GB)
Title: Improvements in or relating to electric discharge tubes
IPC: H01J19/38
Filed: 1959-05-04
Abstract: 919,486. Discharge tubes. PHILIPS ELEC. TRICAL INDUSTRIES Ltd. May 4, 1959 [May 7, 1958], No. 15183/59. Class 39 (1). In a di3charge tube comprising a cathode and frame grid assembly located within an envelope by means of two insulating discs 5, the frame grid consisting of two grid stays 2, spaced near each end by spacers 4, and wire wound on the stays between the spacers, the spacers are secured to the grid stays in such a position that they only touch the discs 5 within areas nearer to the stays than to the cathode. Thus the formation of leakage paths between tne grid and cathode is impeded since leakage currents must travel the entire distance between the grid stays and cathode over the mica discs. As shown, two spacers are provided at each end of the stays, each spacer being -substantially parallel to its adjacent grid winding on its respective side of the grid. Alternatively the spacers may be recessed so as not to contact discs 5 in areas nearer to the cathode than to the stays.
Patent GB-228061-A (GB)
Title: Improvements in or relating to welding
IPC: B23K11/20
Filed: 1924-06-24
Abstract: 228,061. Ellis, G. B., (Murray, T. E.). June 24, 1924. Compound forms.-Two or more pieces of work of different resistance or of different composition are electrically welded together by interposing at least two other pieces between them one against each work piece and corresponding in resistance thereto and then passing a current through the parts and welding by pressure. A small disc of steel 4 is welded to a large copper plate 3, the inserts consisting of a steel wire mesh 5 and a brass wire mesh 6. The wire mesh may be filled with flux.
Patent GB-352641-A (GB)
Title: Improved means for suspending and tensioning wire netting and other flexible material
IPC: F26B25/18
Filed: 1930-05-19
Abstract: 352,641. Tea - withering racks. BROOKE BOND & CO., Ltd., Goulston Street, Aldgate East, London.-(Lloyd, L. N.; Rockwood Tea Estate, Nellakota P.O., Nilgiris, India.) May 19, 1930, No. 15350. [Class 34 (ii).] A tea-withering rack is formed from wire mesh 2 which is secured at its ends to horizontal anglesection bars 8 and along its sides to wires 1. The ends of the wires are connected to tensioning bolts 3 which are adjustably secured to vertical supports 5, and the bars 8 are slidably mounted on the bolts and are secured by nuts 10. By adjusting the nut 6 the tension of the mesh and supporting wires can be simultaneously adjusted; by tightening nut 6 and slackening nut 10 the supporting wires above are tensioned, whilst by tightening nut 10 only, the wire mesh alone is tensioned.
Patent GB-1329924-A (GB)
Title: Stabilization of vinylidene chloride
IPC: C07C17/42
Filed: 1972-04-04
Abstract: 1329924 Stabilization of vinylidene chloride SOLVAY & CIE 4 April 1972 [6 April 1971] 15360/72 Heading C2C A process for the stabilization of vinylidene chloride comprises adding phenothiazine thereto. The phenothiazine is suitably added in an amount of from 0À001 to 0À2% by weight of the vinylidene chloride.
Patent GB-635632-A (GB)
Title: Improvements in and relating to methods of preparing vinyldibenzofuran
IPC: C07D307/91
Filed: 1947-06-11
Abstract: Vinyldibenzofurans are prepared by dehydrogenating monoethyldibenzofurans by passing the latter over a dehydrogenation catalyst, as hereinafter defined, at elevated temperatures for example 450 DEG  to 750 DEG  C.  The following are the dehydrogenation catalysts which may be used: chrome-alumina, chrome-magnesia, titania-alumina, molybdenum-alumina, nickel, nickel sulphide, and the oxides of aluminium, chromium, lead, magnesium, manganese, molybdenum, thorium, titanium, tungsten, vanadium and zinc, which are preferably pelletted.  The catalyst may be contained in a column, which may be divided into a number of heater-sections to facilitate temperature control.  The ethyl dibenzofuran may be distilled up the column or introduced at the top and the products collected in a receiver at the bottom.  In both cases, the system is maintained under reduced pressure.  Any or all of the various isomers of mono-ethyl dibenzofuran may be used and they may be prepared as described in Specification 635,631.  Examples are given illustrating the dehydrogenation of 2-ethyldibenzofuran.  The vinyl dibenzofuran may be polymerized or co-polymerized with other materials for example as described in Specifications 601,568 and 604,879, [both in Group IV (a)]. p   The Specification as open to inspection under Sect. 91 refers to the use of catalysts in general.  This subject-matter does not appear in the Specification as accepted.
Patent GB-658958-A (GB)
Title: A food composition for ruminant animals
IPC: A23K50/15
Filed: 1947-06-11
Abstract: Compositions for improving the utilization of non-protein nitrogen by ruminant animals comprise particles of a non-toxic, non-protein nitrogen compound, e.g. urea, ammonium salts, coated or bound into pellets with a substance susceptible to disintegration in the rumen, e.g. casein or soya bean protein glue, egg white, gelatine, a dissolved cellulose or cellulose derivative such as methyl cellulose, a wax, or a fat, fatty acid or paraffin of high m.pt.  The compositions may contain ground roughage, e.g. ground hay, cultures of rumen micro-organisms, and nutrients therefor exemplified by dried yeast, irradiated yeast or yeast extract, dried distillers' fermentation solubles, dried liver or liver extract, dried buttermilk, meals of dried cereal grass and dried alfalfa leaf. Specifications 335,175, [Class III], and 575,617 are referred to.
Patent GB-254489-A (GB)
Title: Improvements in electric lighting systems for motor vehicles
IPC: B60R16/02
Filed: 1925-08-13
Abstract: 254,489. Middlemiss, E. T., and Edwards, G. A. Aug. 13, 1925. Supplying consuming devices from variable-speed generators; protective arrangements; charging batteries.-The voltage of the dynamo a of a vehicle lighting system is prevented from rising excessively upon disconnection of the accumulator, and overcharging is prevented, by an electromagnetic switch j, k, normally closed, but opened at a limiting voltage by a coil f in shunt with the dynamo terminals. The switch inserts an additional coil g into the field circuit of the dynamo and the resistance of this coil reduces the excitation. A hand lever may be fitted to depress the switch to enable the dynamo safely to feed the lamps when the accumulator is removed. Specification 7156/13 is referred to.
Patent GB-273274-A (GB)
Title: Improvements in photographic lenses, corrected spherically, chromatically, astigmatically and for coma
IPC: G02B9/12
Filed: 1927-06-10
Abstract: 273,274. Zeiss, C. [Firm of]. June 26, 1926, [Convention date]. Lenses. - Photographic lenses, corrected spherically, chromatically, astigmatically and for coma, consisting of three lenses separated by air spaces, as shown, and have the following features. The radius of curvature of the cemented surface of one of the collective lenses is at the most equal to five-sixths of the radius of curvature of the outer surface of this lens, and to half of the focal length of the -complete lens. The radius of curvature of the outer surface of the collective single lens is at least equal to one third of the radius of curvature of the outer surface of the composite lens and at the most equal to it. The total of the absolute values of the radii of curvature of the two outer surfaces of the complete lens is at least three-fourths of the focal length of the lens and the radii of curvature of the biconcave lens is at least nine-tenths of the focal length of the lens, one of the radii being not larger than three and a half times that of the other. Numerical data are given in the Specification.
Patent GB-1137925-A (GB)
Title: Production of copolymers suitable as binders in coating compositions, as impregnants and as adhesives
Inventor: WILHELM HANS
IPC: C08F20/62
Filed: 1966-04-07
Abstract: 1,137,925. Copolymers of etherified methylol- (meth)-acrylamide. BADISCHE ANILIN- & SODA-FABRIK A.G. 7 April, 1966 [10 April, 1965; 26 May, 1965], No. 15501/66. Heading C3P. In a multi-stage process for preparing derivatives of amide copolymers (A) 0À9-1À2 moles of (meth)-acrylamide, 0À9-1À2 moles of paraformaldehyde (calculated as monomer), at least 0À9 moles of an (oxa)-alkanol having up to 8 carbon atoms and 0À001-0À5 moles of a tertiary aliphatic or cycloaliphatic monoamine having up to 12 carbon atoms are reacted at 50-100‹ C.; (B) then at least 101 equivalent per cent, based on said monoamine, of an α,#-ethylenically unsaturated mono- or di-basic carboxylic acid and/or an (oxa)-alkyl half-ester of such a dibasic acid having up to 9 carbon atoms in the (oxa)-alkyl radical is added and the mixture kept at 80-140‹ C.; (C) then any remainder of the said carboxylic acid or half-ester, and an (oxa)-alkyl ester of (meth)-acrylic acid having up to 20 carbon atoms in the (oxa)-alkyl radical and/or an (alkyl)-vinyl benzene having up to 12 carbon atoms and, if desired, other comonomer are added and copolymerization is carried out using an aliphatic or cycloaliphatic azo compound or an organic peroxide having a half-life of 0À1-30 hours at 85-110‹ C. as polymerization initiator. Polymerization is generally effected in an organic solvent which may be an excess of the (oxa)-alkanol used in step (A) or benzene or an alkyl benzene. In step (A) an oxygen-containing atmosphere is used and in step (B) a polymerization inhibitor is desirably included, e.g. phenothiazine, hydroquinone, methylene blue, nitrosophenol or mdinitrobenzene. The initiator used in step (C) may be azodiisobutyronitrile, azodiisobutyramide, azodicyclohexylcarbonitrile, cumene hydroperoxide, dibenzoyl peroxide, dilauroyl peroxide, t - butyl permaleate, t - butyl hydroperoxide, 2,2 - bis - (t - butyl peroxy)- butane or t-butyl perbenzoate; the initiator may be added continuously during polymerization. A regulator, e.g. t-dodecyl mercaptan, may be included in the polymerization reaction. In the examples, the following monomers are used: acrylamide, maleic acid, acrylic acid, styrene, 1,4-butane-diol monoacrylate and also, in some cases, 2-ethyl hexyl acrylate; the (oxa)-alkanol being n-butanol and the amine being N,N - dimethyl - (# - hydroxyethyl)- amine. The polymers obtained in the invention are useful in coating compositions, stoving lacquers, impregnants and adhesives.
Patent GB-1437909-A (GB)
Title: Instrument for measurement and control of a measurable quantity
IPC: G01K1/02
Filed: 1974-04-09
Abstract: 1437909 Indicating measurement HAUSER VERWALTUNGS - GmbH 9 April 1974 [9 April 1973] 15755/74 Heading G1J [Also in Division H1] An instrument 10 for setting the required value and displaying the actual value of a parameter, e.g. temperature or pressure, comprises a dial gauge having means 12 for converting changes in the measured value of the parameter into rotation of a pointer spindle 11 carrying a pointer 19 movable over a dial 18 to indicate the measured value, and means 17, 21 for axially displacing the spindle 11 in proportion to its rotation, to actuate a microswitch 32. The micro-switch is mounted externally of the instrument casing 27 on a bracket 31 for easy adjustment and/or replacement. The means 12 may be electrical or, as shown, mechanical, e.g. a double layer Bourdon tube 13, 14 connected to the capillary of a thermometer. The spindle 11 has an axial threaded bore 20 which engages a normally stationary screw 21 to produce axial movement of the spindle proportional to its rotation. The screw 21 carries a set pointer 25 to indicate the control point of the instrument, i.e. the value of the parameter at which the micro-switch 32 is actuated, and carries a knob 24 in front of the centre of the cover glass 23 of the gauge for adjustment of the control point. In a modification, Fig. 3, not shown, the knob 24 is adjacent the edge of the cover glass 23 and the spindle 11 has an external screw thread (36) adjacent its rear end which engages a nut (21) rotatably mounted in the back wall (29) of the casing (27). A gear wheel (38) on the nut (21) meshes a pinion (39) on the shaft (22) of the knob 24 and carries a U-shaped set pointer (41). The pointers 19, 25 are of resilient material and each has a bifurcated end (34) Fig. 2, (not shown) by which it can be clipped to the spindle 11 or shaft 22, the bifurcated end embracing about 60% of the circumference of the spindle or shaft.
Patent GB-160387-A (GB)
Title: Improved valve spring lifter
IPC: B25B27/26
Filed: 1920-06-11
Abstract: 160,387. Wright, J., and Wright, H. June 11, 1920. Prizing-tools.-A valve-spring lifter for motor engines comprises a pair of parallel bars a pivoted adjustably by the holes e to a leg or post d, and having at one end a pivoted handle h and at the other end a pivoted piece c for engaging under the valve-spring washer. A screwed hook f is provided for engaging round the push rod to prevent the post d from slipping. A pawl g pivoted to the post engages ratchet teeth b on the bars a and holds the spring in lifted position.
Patent GB-1200312-A (GB)
Title: Improvements in and relating to concrete formwork
Inventor: SEWELL JOHN BARRINGTON
IPC: E04G11/48
Filed: 1967-04-06
Abstract: 1,200,312. Supports for floor shuttering. ACROW (ENG.) Ltd. 27 July, 1967 [6 April, 1967], No. 15847/67. Heading E1S. Shuttering for concrete slabs is supported by generally triangular supports 2 each with a base-plate 8 which is vertically adjustable by means of a screw-jack 26 and two verticallyadjtistable channel-sectioned support heads 18 which are retained in the desired position by pins 22 passing through holes in the support tube 12 and in the shaft 20 under the head 18. A rectangular panel 42 (Figs. 2-4, not shown) is supported by two pairs of supports, each pair supporting an I-beam 40 and being interconnected by a tube 44, the two composite supports so formed being crossbraced.